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Fan X, Ding X, Wang P, Li Z, Cheng Y, Liu J, Yu J, Zhai J, Pan Z, Li W. Ultra-Low Loading Fillers Induced Excellent Capacitive Performance in Polymer-Based Multilayer Nanocomposites under Harsh Environments. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024:e2405786. [PMID: 39291954 DOI: 10.1002/smll.202405786] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/11/2024] [Revised: 08/29/2024] [Indexed: 09/19/2024]
Abstract
Multilayer-structured nanocomposites are recognized as a prominent strategy for overcoming the paradox between the breakdown strength (Eb) and polarization (P) to achieve superior energy storage performance. However, current multilayer-structured nanocomposites involving substantial quantities of nanofillers (>10 vol.%) for high dielectric constant as polarization layer will inevitably deteriorate mechanical properties and breakdown strength. Herein, an innovative approach is reported to breaking conventional rules by designing a multilayered polymer composite with ultralow loading of Al2O3 nanoparticles, i.e., 0.3 vol.% for polarization layers and 2 vol.% for insulation layers. By modulating the spatial distribution of Al2O3 nanoparticles in polymer, a significantly increased interfacial dipole response is induced, and deep interfacial traps are constructed to capture the mobile charges, thereby suppressing high-temperature conduction loss. The resulting multilayered polymer composite exhibits an unparalleled discharged energy density of 7.8 J cm-3 with a charging/discharging efficiency exceeding 90% at 150 °C. This work provides valuable insights into achieving superior capacitive performance in multilayer composite films operating under extreme conditions.
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Affiliation(s)
- Xu Fan
- School of Materials Science and Chemical Engineering, Ningbo University, Ningbo, 315211, China
| | - Xiangping Ding
- School of Materials Science and Chemical Engineering, Ningbo University, Ningbo, 315211, China
| | - Peng Wang
- School of Materials Science & Engineering, Tongji University, Shanghai, 201804, China
| | - Zhicheng Li
- School of Materials Science and Chemical Engineering, Ningbo University, Ningbo, 315211, China
| | - Yu Cheng
- School of Materials Science and Chemical Engineering, Ningbo University, Ningbo, 315211, China
| | - Jinjun Liu
- School of Materials Science and Chemical Engineering, Ningbo University, Ningbo, 315211, China
| | - Jinhong Yu
- Key Laboratory of Marine Materials and Related Technologies, Zhejiang Key Laboratory of Marine Materials and Protective Technologies, Ningbo Institute of Materials, Technology and Engineering, Chinese Academy of Sciences, University of Chinese Academy of Sciences, Ningbo, 315201, China
| | - Jiwei Zhai
- School of Materials Science & Engineering, Tongji University, Shanghai, 201804, China
| | - Zhongbin Pan
- School of Materials Science and Chemical Engineering, Ningbo University, Ningbo, 315211, China
| | - Weiping Li
- Department of Microelectronics Science and Engineering, School of Physical Science and Technology and Laboratory of Clean Energy Storage and Conversion, Ningbo University, Ningbo, 315211, China
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2
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Li Z, Wang J, Zou J, Li S, Zhen X, Shen Z, Li B, Zhang X, Nan CW. Magnetic-assisted alignment of nanofibers in a polymer nanocomposite for high-temperature capacitive energy storage applications. MATERIALS HORIZONS 2024; 11:4472-4481. [PMID: 38967617 DOI: 10.1039/d4mh00493k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/06/2024]
Abstract
Flexible polymer-based dielectrics with high energy storage characteristics over a wide temperature range are crucial for advanced electrical and electronic systems. However, the intrinsic low dielectric constant and drastically degraded breakdown strength hinder the development of polymer-based dielectrics at elevated temperatures. Here, we propose a magnetic-assisted approach for fabricating a polyethyleneimine (PEI)-based nanocomposite with precisely aligned nanofibers within the polymer matrix, and with Al2O3 deposition layers applied on the surface. The resulting polymer nanocomposite exhibits simultaneously increased dielectric constant and enhanced breakdown strength at high temperatures compared to pristine PEI. The enhanced dielectric constant is contributed by the depolarization effect of out-of-plane orientated nanofibers in composite films, while the surficial Al2O3 layers, with a wide bandgap, effectively prevent charge injection and transport at the electrode/dielectric interface. The optimally aligned composite films exhibit a significantly enhanced discharged energy density of 6.5 J cm-3 at 150 °C, with approximately 41% and 132% enhancement compared to random films and pristine PEI films, respectively. Additionally, a metalized multilayer polymer-based capacitor utilizing this composite film produces a high capacitance of 88 nF, while demonstrating excellent cyclability and flexibility at 150 °C. This work offers an effective strategy for developing polymer-based composite dielectrics with superior capacitive performance at elevated temperatures and demonstrates the potential of fabricating high-quality flexible capacitors.
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Affiliation(s)
- Zhi Li
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Center of Smart Materials and Devices, Wuhan University of Technology, Wuhan, Hubei, 430070, China.
| | - Jian Wang
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Center of Smart Materials and Devices, Wuhan University of Technology, Wuhan, Hubei, 430070, China.
| | - Junjie Zou
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Center of Smart Materials and Devices, Wuhan University of Technology, Wuhan, Hubei, 430070, China.
| | - Shuxuan Li
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Center of Smart Materials and Devices, Wuhan University of Technology, Wuhan, Hubei, 430070, China.
| | - Xin Zhen
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Center of Smart Materials and Devices, Wuhan University of Technology, Wuhan, Hubei, 430070, China.
| | - Zhonghui Shen
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Center of Smart Materials and Devices, Wuhan University of Technology, Wuhan, Hubei, 430070, China.
| | - Baowen Li
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Center of Smart Materials and Devices, Wuhan University of Technology, Wuhan, Hubei, 430070, China.
| | - Xin Zhang
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Center of Smart Materials and Devices, Wuhan University of Technology, Wuhan, Hubei, 430070, China.
| | - Ce-Wen Nan
- School of Materials Science and Engineering, State Key Lab of New Ceramics and Fine Processing, Tsinghua University, Beijing, 100000, China.
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3
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Wang H, Luo H, Liu Y, Wang F, Peng B, Li X, Hu D, He G, Zhang D. Improved Energy Density at High Temperatures of FPE Dielectrics by Extreme Low Loading of CQDs. MATERIALS (BASEL, SWITZERLAND) 2024; 17:3625. [PMID: 39063916 PMCID: PMC11279081 DOI: 10.3390/ma17143625] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/13/2024] [Revised: 07/15/2024] [Accepted: 07/19/2024] [Indexed: 07/28/2024]
Abstract
Electrostatic capacitors, with the advantages of high-power density, fast charging-discharging, and outstanding cyclic stability, have become important energy storage devices for modern power electronics. However, the insulation performance of the dielectrics in capacitors will significantly deteriorate under the conditions of high temperatures and electric fields, resulting in limited capacitive performance. In this paper, we report a method to improve the high-temperature energy storage performance of a polymer dielectric for capacitors by incorporating an extremely low loading of 0.5 wt% carbon quantum dots (CQDs) into a fluorene polyester (FPE) polymer. CQDs possess a high electron affinity energy, enabling them to capture migrating carriers and exhibit a unique Coulomb-blocking effect to scatter electrons, thereby restricting electron migration. As a result, the breakdown strength and energy storage properties of the CQD/FPE nanocomposites are significantly enhanced. For instance, the energy density of 0.5 wt% CQD/FPE nanocomposites at room temperature, with an efficiency (η) exceeding 90%, reached 9.6 J/cm3. At the discharge energy density of 0.5 wt%, the CQD/FPE nanocomposites remained at 4.53 J/cm3 with an efficiency (η) exceeding 90% at 150 °C, which surpasses lots of reported results.
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Affiliation(s)
| | - Hang Luo
- State Key Laboratory of Powder Metallurgy, Central South University, Changsha 410083, China; (H.W.); (Y.L.); (F.W.); (B.P.); (X.L.); (D.H.); (G.H.); (D.Z.)
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4
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Gurnani R, Shukla S, Kamal D, Wu C, Hao J, Kuenneth C, Aklujkar P, Khomane A, Daniels R, Deshmukh AA, Cao Y, Sotzing G, Ramprasad R. AI-assisted discovery of high-temperature dielectrics for energy storage. Nat Commun 2024; 15:6107. [PMID: 39030220 PMCID: PMC11271506 DOI: 10.1038/s41467-024-50413-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2024] [Accepted: 07/01/2024] [Indexed: 07/21/2024] Open
Abstract
Electrostatic capacitors play a crucial role as energy storage devices in modern electrical systems. Energy density, the figure of merit for electrostatic capacitors, is primarily determined by the choice of dielectric material. Most industry-grade polymer dielectrics are flexible polyolefins or rigid aromatics, possessing high energy density or high thermal stability, but not both. Here, we employ artificial intelligence (AI), established polymer chemistry, and molecular engineering to discover a suite of dielectrics in the polynorbornene and polyimide families. Many of the discovered dielectrics exhibit high thermal stability and high energy density over a broad temperature range. One such dielectric displays an energy density of 8.3 J cc-1 at 200 °C, a value 11 × that of any commercially available polymer dielectric at this temperature. We also evaluate pathways to further enhance the polynorbornene and polyimide families, enabling these capacitors to perform well in demanding applications (e.g., aerospace) while being environmentally sustainable. These findings expand the potential applications of electrostatic capacitors within the 85-200 °C temperature range, at which there is presently no good commercial solution. More broadly, this research demonstrates the impact of AI on chemical structure generation and property prediction, highlighting the potential for materials design advancement beyond electrostatic capacitors.
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Affiliation(s)
- Rishi Gurnani
- School of Materials Science and Engineering, Georgia Institute of Technology, Atlanta, GA, USA
- Polymer Program, Institute of Materials Science, University of Connecticut, Storrs, 06296, CT, USA
| | - Stuti Shukla
- Materials Science Program, Institute of Materials Science, University of Connecticut, Storrs, CT, USA
| | - Deepak Kamal
- School of Materials Science and Engineering, Georgia Institute of Technology, Atlanta, GA, USA
| | - Chao Wu
- Electrical Insulation Research Center, Institute of Materials Science, University of Connecticut, Storrs, CT, USA
- Department of Electrical Engineering, Tsinghua University, Beijing, China
| | - Jing Hao
- Electrical Insulation Research Center, Institute of Materials Science, University of Connecticut, Storrs, CT, USA
| | - Christopher Kuenneth
- School of Materials Science and Engineering, Georgia Institute of Technology, Atlanta, GA, USA
- Faculty of Engineering Science, University of Bayreuth, Bayreuth, Germany
| | - Pritish Aklujkar
- Polymer Program, Institute of Materials Science, University of Connecticut, Storrs, CT, USA
| | - Ashish Khomane
- Materials Science Program, Institute of Materials Science, University of Connecticut, Storrs, CT, USA
| | - Robert Daniels
- Materials Science Program, Institute of Materials Science, University of Connecticut, Storrs, CT, USA
| | - Ajinkya A Deshmukh
- Polymer Program, Institute of Materials Science, University of Connecticut, Storrs, 06296, CT, USA
| | - Yang Cao
- Electrical Insulation Research Center, Institute of Materials Science, University of Connecticut, Storrs, CT, USA
| | - Gregory Sotzing
- Materials Science Program, Institute of Materials Science, University of Connecticut, Storrs, CT, USA
- Polymer Program, Institute of Materials Science, University of Connecticut, Storrs, CT, USA
| | - Rampi Ramprasad
- School of Materials Science and Engineering, Georgia Institute of Technology, Atlanta, GA, USA.
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5
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Xu W, Zhou C, Ji W, Zhang Y, Jiang Z, Bertram F, Shang Y, Zhang H, Shen C. Anisotropic Semicrystalline Homopolymer Dielectrics for High-Temperature Capacitive Energy Storage. Angew Chem Int Ed Engl 2024; 63:e202319766. [PMID: 38598769 DOI: 10.1002/anie.202319766] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2023] [Revised: 03/26/2024] [Accepted: 04/03/2024] [Indexed: 04/12/2024]
Abstract
High-temperature dielectric polymers are in high demand for powering applications in extreme environments. Here, we have developed high-temperature homopolymer dielectrics with anisotropy by leveraging the hierarchical structure in semicrystalline polymers. The lamellae have been aligned parallel to the surface in the dielectric films. This structural arrangement resembles the horizontal alignment of nanosheet fillers in polymer nanocomposites and nanosheet-like lamellae in block copolymers, which has been proven to provide the optimal topological structure for electrical energy storage. The unique ordering of lamellae in our dielectric films endue a significantly increased breakdown strength and a reduced leakage current compared to amorphous films. This novel approach of enhancing the capacitive energy storage properties by controlled orientation of lamellae in homopolymer offers a new perspective for the design of high-temperature polymer dielectrics.
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Affiliation(s)
- Wenhan Xu
- National and Local Joint Engineering Laboratory for Synthetic Technology of High-Performance Polymer, Institution, College of Chemistry, Jilin University
- Deutsches Elektronen-Synchrotron DESY, Notkestr. 85, 22607, Hamburg, Germany
| | - Chenyi Zhou
- National and Local Joint Engineering Laboratory for Synthetic Technology of High-Performance Polymer, Institution, College of Chemistry, Jilin University
| | - Wenhai Ji
- Deutsches Elektronen-Synchrotron DESY, Notkestr. 85, 22607, Hamburg, Germany
| | - Yunhe Zhang
- National and Local Joint Engineering Laboratory for Synthetic Technology of High-Performance Polymer, Institution, College of Chemistry, Jilin University
| | - Zhenhua Jiang
- National and Local Joint Engineering Laboratory for Synthetic Technology of High-Performance Polymer, Institution, College of Chemistry, Jilin University
| | - Florian Bertram
- Deutsches Elektronen-Synchrotron DESY, Notkestr. 85, 22607, Hamburg, Germany
| | - Yingshuang Shang
- National and Local Joint Engineering Laboratory for Synthetic Technology of High-Performance Polymer, Institution, College of Chemistry, Jilin University
| | - Haibo Zhang
- National and Local Joint Engineering Laboratory for Synthetic Technology of High-Performance Polymer, Institution, College of Chemistry, Jilin University
| | - Chen Shen
- Deutsches Elektronen-Synchrotron DESY, Notkestr. 85, 22607, Hamburg, Germany
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6
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Li X, Wang Y, Rao Y, Ma X, Yang Y, Zhang J. Enhanced Energy Storage in PVDF-Based Nanocomposite Capacitors through (00 l)-Oriented BaTiO 3 Single-Crystal Platelets. ACS APPLIED MATERIALS & INTERFACES 2024; 16:27785-27793. [PMID: 38757309 DOI: 10.1021/acsami.4c04340] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/18/2024]
Abstract
Flexible nanocomposite dielectrics with inorganic nanofillers exhibit great potential for energy storage devices in advanced microelectronics applications. However, high loading of inorganic nanofillers in the matrix results in an inhomogeneous electric field distribution, thereby hindering the improvement of the energy storage density (Ue) of the dielectrics. Herein, we proposed a strategy that utilized (00l)-oriented barium titanate (BT) single-crystal platelets to fabricate trilayered nanocomposite dielectrics for energy storage applications. The trilayered nanocomposites consisted of two high-permittivity layers of (Ta2O5, Al2O3) codoped TiO2 nanoparticles (Ta-Al@TiO2 nps) dispersed in a poly(vinylidene fluoride) (PVDF) matrix to facilitate large electric displacement and a middle layer of (00l)-oriented BT single-crystal platelets to provide high breakdown strength. Hence, the trilayered PVDF/Ta-Al@TiO2 nps/BT single-crystal platelet nanocomposite film attains an outstanding Ue of 16.9 J cm-3 at 370 kV mm-1, which is ∼625% higher than that of the single-layer PVDF/Ta-Al@TiO2 nps film. Finite element simulation further clarified that the successive inner layer of highly (00l)-oriented BT single-crystal platelets could effectively restrain the propagation of electrical treeing in trilayered nanocomposites. This research offers an effective approach for developing flexible dielectric capacitors with an excellent energy storage performance.
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Affiliation(s)
- Xiongjie Li
- State Key Laboratory of Mechanics and Control for Aerospace Structures, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, P. R. China
- Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, 1037 Luoyu Road, Wuhan, Hubei 430074, P. R. China
| | - Yiping Wang
- State Key Laboratory of Mechanics and Control for Aerospace Structures, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, P. R. China
| | - Yu Rao
- Hubei Key Laboratory of Energy Storage and Power Battery, School of Mathematics, Physics and Optoelectronics Engineering, Hubei University of Automotive Technology, Shiyan, Hubei 442002, P. R. China
| | - Xinchi Ma
- State Key Laboratory of Mechanics and Control for Aerospace Structures, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, P. R. China
| | - Ying Yang
- State Key Laboratory of Mechanics and Control for Aerospace Structures, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, P. R. China
| | - Jiyang Zhang
- Beijing Institute of Control Engineering, Beijing 100190, P. R. China
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7
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Luo FY, Li YT, Zhang JY, He L, Li JL, Sun N, Li GL, Jiang Y, Zhou K, Liang QQ, Guo L, Wei HY, Wei XH, Zhou YL, Yuan J, Zhang QP. Scalable Dual In Situ Synthesis of Polyester Nanocomposites for High-Energy Storage. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024:e2401308. [PMID: 38773889 DOI: 10.1002/smll.202401308] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/19/2024] [Revised: 04/29/2024] [Indexed: 05/24/2024]
Abstract
Incorporating ultralow loading of nanoparticles into polymers has realized increases in dielectric constant and breakdown strength for excellent energy storage. However, there are still a series of tough issues to be dealt with, such as organic solvent uses, which face enormous challenges in scalable preparation. Here, a new strategy of dual in situ synthesis is proposed, namely polymerization of polyethylene terephthalate (PET) synchronizes with growth of calcium borate nanoparticles, making polyester nanocomposites from monomers directly. Importantly, this route is free of organic solvents and surface modification of nanoparticles, which is readily accessible to scalable synthesis of polyester nanocomposites. Meanwhile, uniform dispersion of as ultralow as 0.1 wt% nanoparticles and intense bonding at interfaces have been observed. Furthermore, the PET-based nanocomposite displays obvious increases in both dielectric constant and breakdown strength as compared to the neat PET. Its maximum discharged energy density reaches 15 J cm-3 at 690 MV m-1 and power density attains 218 MW cm-3 under 150 Ω resistance at 300 MV m-1, which is far superior to the current dielectric polymers that can be produced at large scales. This work presents a scalable, safe, low-cost, and environment-friendly route toward polymer nanocomposites with superior capacitive performance.
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Affiliation(s)
- Fei-Yan Luo
- State Key Laboratory of Environment-friendly Energy Materials, School of Materials and Chemistry, Southwest University of Science and Technology, No. 59 Qinglong Road, Mianyang, 621010, China
| | - Yan-Tong Li
- State Key Laboratory of Environment-friendly Energy Materials, School of Materials and Chemistry, Southwest University of Science and Technology, No. 59 Qinglong Road, Mianyang, 621010, China
| | - Jia-Yu Zhang
- State Key Laboratory of Environment-friendly Energy Materials, School of Materials and Chemistry, Southwest University of Science and Technology, No. 59 Qinglong Road, Mianyang, 621010, China
| | - Li He
- State Key Laboratory of Environment-friendly Energy Materials, School of Materials and Chemistry, Southwest University of Science and Technology, No. 59 Qinglong Road, Mianyang, 621010, China
| | - Jia-Le Li
- State Key Laboratory of Environment-friendly Energy Materials, School of Materials and Chemistry, Southwest University of Science and Technology, No. 59 Qinglong Road, Mianyang, 621010, China
| | - Nan Sun
- State Key Laboratory of Environment-friendly Energy Materials, School of Materials and Chemistry, Southwest University of Science and Technology, No. 59 Qinglong Road, Mianyang, 621010, China
| | - Gui-Lin Li
- Sichuan EM Technology Co., Ltd, No. 188 Sanxing Road, Mianyang, 621000, China
| | - Yong Jiang
- Sichuan EM Technology Co., Ltd, No. 188 Sanxing Road, Mianyang, 621000, China
| | - Ke Zhou
- Sichuan EM Technology Co., Ltd, No. 188 Sanxing Road, Mianyang, 621000, China
| | - Qian-Qian Liang
- Sichuan EM Technology Co., Ltd, No. 188 Sanxing Road, Mianyang, 621000, China
| | - Lei Guo
- Sichuan EM Technology Co., Ltd, No. 188 Sanxing Road, Mianyang, 621000, China
| | - Hong-Yuan Wei
- Tianjin Airtech Advanced Materials Co., Ltd, No. 161, Chagugang Town, Wuqing District, Tianjin, 301721, China
| | - Xian-Hua Wei
- State Key Laboratory of Environment-friendly Energy Materials, School of Materials and Chemistry, Southwest University of Science and Technology, No. 59 Qinglong Road, Mianyang, 621010, China
| | - Yuan-Lin Zhou
- State Key Laboratory of Environment-friendly Energy Materials, School of Materials and Chemistry, Southwest University of Science and Technology, No. 59 Qinglong Road, Mianyang, 621010, China
| | - Jinkai Yuan
- Sorbonne Université, CNRS, Laboratoire de Chimie de la Matière Condensée de Paris, LCMCP, UMR 7574, Paris, 75005, France
| | - Quan-Ping Zhang
- State Key Laboratory of Environment-friendly Energy Materials, School of Materials and Chemistry, Southwest University of Science and Technology, No. 59 Qinglong Road, Mianyang, 621010, China
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8
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Tan Y, Deng J, Gao H, Feng Z, Lu L, Wang J, Pan Z, Yao L, Deng Q. Research on the energy storage performance of laminated composites based on multidimensional co-design in a broad temperature range. NANOSCALE 2024; 16:8455-8461. [PMID: 38577747 DOI: 10.1039/d4nr00189c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/06/2024]
Abstract
Polymer dielectrics play an irreplaceable role in electronic power systems because of their high power density and fast charge-discharge capability, but it is limited by their low stability in the temperature range of 25-200 °C. Rather than the introduction of one-dimensional fillers in polymers, we used a kind of multidimensional synergistic design to prepare Al2O3-TiO2-Al2O3/PI composites with layered structures by introducing multi-dimensional materials in polyimide (PI). In fact, the composite achieves much higher temperature stability than the pure PI film. The optimally proportioned composite has an energy density of 3.41 J cm-3 (vs. 1.48 J cm-3 for pure PI) even at 200 °C. Additionally, it reaches an impressive energy density retention of up to 90% and maintains an energy efficiency as high as 86% at 400 MV m-1 in the temperature range of 25-200 °C. The multidimensional coordination design is proposed to obtain composite films, and provides a feasible strategy in the study of polymer-based composites with high-temperature performance.
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Affiliation(s)
- Yipeng Tan
- School of Physics and Materials Science, Guangzhou University, Guangzhou 510006, P. R. China.
- Research Center for Advanced Information Materials, Huangpu Research & Graduate School of Guangzhou University, Guangzhou 510275, China
| | - Jiayu Deng
- School of Physics and Materials Science, Guangzhou University, Guangzhou 510006, P. R. China.
| | - Hang Gao
- School of Physics and Materials Science, Guangzhou University, Guangzhou 510006, P. R. China.
- Research Center for Advanced Information Materials, Huangpu Research & Graduate School of Guangzhou University, Guangzhou 510275, China
| | - Ziwen Feng
- School of Physics and Materials Science, Guangzhou University, Guangzhou 510006, P. R. China.
- Research Center for Advanced Information Materials, Huangpu Research & Graduate School of Guangzhou University, Guangzhou 510275, China
| | - Linfei Lu
- School of Physics and Materials Science, Guangzhou University, Guangzhou 510006, P. R. China.
- Joint Institute of Guangzhou University & Institute of Corrosion Science and Technology, Guangzhou University, Guangzhou 510275, China
- Research Center for Advanced Information Materials, Huangpu Research & Graduate School of Guangzhou University, Guangzhou 510275, China
| | - Jiheng Wang
- School of Physics and Materials Science, Guangzhou University, Guangzhou 510006, P. R. China.
| | - Zhongbin Pan
- School of Materials Science and Chemical Engineering, Ningbo University, Ningbo 315211, China
| | - Lingmin Yao
- School of Physics and Materials Science, Guangzhou University, Guangzhou 510006, P. R. China.
- Joint Institute of Guangzhou University & Institute of Corrosion Science and Technology, Guangzhou University, Guangzhou 510275, China
- Research Center for Advanced Information Materials, Huangpu Research & Graduate School of Guangzhou University, Guangzhou 510275, China
| | - Qinglin Deng
- School of Physics and Materials Science, Guangzhou University, Guangzhou 510006, P. R. China.
- Research Center for Advanced Information Materials, Huangpu Research & Graduate School of Guangzhou University, Guangzhou 510275, China
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9
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Yang M, Guo M, Xu E, Ren W, Wang D, Li S, Zhang S, Nan CW, Shen Y. Polymer nanocomposite dielectrics for capacitive energy storage. NATURE NANOTECHNOLOGY 2024; 19:588-603. [PMID: 38172431 DOI: 10.1038/s41565-023-01541-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/02/2023] [Accepted: 10/10/2023] [Indexed: 01/05/2024]
Abstract
Owing to their excellent discharged energy density over a broad temperature range, polymer nanocomposites offer immense potential as dielectric materials in advanced electrical and electronic systems, such as intelligent electric vehicles, smart grids and renewable energy generation. In recent years, various nanoscale approaches have been developed to induce appreciable enhancement in discharged energy density. In this Review, we discuss the state-of-the-art polymer nanocomposites with improved energy density from three key aspects: dipole activity, breakdown resistance and heat tolerance. We also describe the physical properties of polymer nanocomposite interfaces, showing how the electrical, mechanical and thermal characteristics impact energy storage performances and how they are interrelated. Further, we discuss multi-level nanotechnologies including monomer design, crosslinking, polymer blending, nanofiller incorporation and multilayer fabrication. We conclude by presenting the current challenges and future opportunities in this field.
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Affiliation(s)
- Minzheng Yang
- School of Materials Science and Engineering, State Key Lab of New Ceramics and Fine Processing, Tsinghua University, Beijing, China
| | - Mengfan Guo
- School of Materials Science and Engineering, State Key Lab of New Ceramics and Fine Processing, Tsinghua University, Beijing, China
| | - Erxiang Xu
- School of Materials Science and Engineering, State Key Lab of New Ceramics and Fine Processing, Tsinghua University, Beijing, China
| | - Weibin Ren
- School of Materials Science and Engineering, State Key Lab of New Ceramics and Fine Processing, Tsinghua University, Beijing, China
| | - Danyang Wang
- School of Materials Science and Engineering, The University of New South Wales, Sydney, Australia
| | - Sean Li
- School of Materials Science and Engineering, The University of New South Wales, Sydney, Australia
| | - Shujun Zhang
- Institute for Superconducting and Electronic Materials, AIIM, University of Wollongong, Wollongong, Australia.
| | - Ce-Wen Nan
- School of Materials Science and Engineering, State Key Lab of New Ceramics and Fine Processing, Tsinghua University, Beijing, China.
| | - Yang Shen
- School of Materials Science and Engineering, State Key Lab of New Ceramics and Fine Processing, Tsinghua University, Beijing, China.
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10
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Ye L, Ran C, Xie Z, Zhang J, Ma S. Significantly Enhanced Energy Density of Polyvinylidene Fluoride/Polyimide-Based Nanocomposites by Core-Shell BaTiO 3@SiO 2. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2024; 40:7710-7722. [PMID: 38530200 DOI: 10.1021/acs.langmuir.4c00417] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/27/2024]
Abstract
Improving the limited energy storage capacity of dielectric materials has long been an attractive challenge. In this work, a four-phase hybridized nanocomposite was designed. The linear polymer polyimide (PI) was added to the ferroelectric polymer polyvinylidene fluoride (PVDF) and compounded with a nanoceramic BT@SiO2 with a core-shell structure. The results show that PVDF-PI/BT@SiO2 nanocomposites prepared by a straightforward spin-coating method have a significantly increased discharge energy density. The polymer blends obtain a tightly extended conformation in the amorphous region. Also, this provides an excellent matrix environment for the homogeneous dispersion of fillers. The core-shell structure, as a physical barrier, not only hinders the expansion of the breakdown path but also extends multiple polarization surfaces with gradient variations at the microscopic level. Therefore, the synergistic effect generated by polymer blending and core-shell structure effectively enhances the dielectric and stored energy characteristics of nanocomposites. The dielectric constant is stable at 11.39-18.7, and the dielectric loss is always lower than 0.136. The discharge energy density is 2.5 J/cm3, almost 110% higher than that of the BOPP films (about 1.2 J/cm3). These experimental results suggest that the composite system using core-shell structure and polymer blending is a new way to improve the energy density of dielectric materials.
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Affiliation(s)
- Lu Ye
- Key Laboratory of materials and surface technology (Ministry of Education), School of Materials Science and Engineering, Xihua University, Chengdu, Sichuan 610039, China
| | - Changning Ran
- Key Laboratory of materials and surface technology (Ministry of Education), School of Materials Science and Engineering, Xihua University, Chengdu, Sichuan 610039, China
| | - Zhihui Xie
- Dongfang Electric Machinery Co., Ltd, Deyang 618000, China
| | - Jianjun Zhang
- Key Laboratory of materials and surface technology (Ministry of Education), School of Materials Science and Engineering, Xihua University, Chengdu, Sichuan 610039, China
| | - Sude Ma
- Key Laboratory of materials and surface technology (Ministry of Education), School of Materials Science and Engineering, Xihua University, Chengdu, Sichuan 610039, China
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11
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Wang Y, Bao Z, Ding S, Jia J, Dai Z, Li Y, Shen S, Chu S, Yin Y, Li X. γ-Ray Irradiation Significantly Enhances Capacitive Energy Storage Performance of Polymer Dielectric Films. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2024; 36:e2308597. [PMID: 38288654 DOI: 10.1002/adma.202308597] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/23/2023] [Revised: 01/26/2024] [Indexed: 02/06/2024]
Abstract
Polymer dielectric capacitors are fundamental in advanced electronics and power grids but suffer from low energy density, hindering miniaturization of compact electrical systems. It is shown that high-energy and strong penetrating γ-irradiation significantly enhances capacitive energy storage performance of polymer dielectrics. γ-irradiated biaxially oriented polypropylene (BOPP) films exhibit an extraordinarily high energy density of 10.4 J cm-3 at 968 MV m-1 with an efficiency of 97.3%. In particular, an energy density of 4.06 J cm-3 with an ultrahigh efficiency of 98% is reliably maintained through 20 000 charge-discharge cycles under 600 MV m-1. At 125 °C, the γ-irradiated BOPP film still delivers a high discharged energy density of 5.88 J cm-3 with an efficiency of 90% at 770 MV m-1. Substantial improvements are also achieved for γ-irradiated cycloolefin copolymers at a high temperature of 150 °C, verifying the strategy generalizability. Experimental and theoretical analyses reveal that the excellent performance should be related to the γ-irradiation induced polar functional groups with high electron affinity in the molecular chain, which offer deep energy traps to impede charge transport. This work provides a simple and generally applicable strategy for developing high-performance polymer dielectrics.
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Affiliation(s)
- Yiwei Wang
- Hefei National Research Center for Physical Sciences at the Microscale, Department of Physics and CAS Key Laboratory of Strongly-Coupled Quantum Matter Physics, University of Science and Technology of China, Hefei, 230026, P. R. China
| | - Zhiwei Bao
- Hefei National Research Center for Physical Sciences at the Microscale, Department of Physics and CAS Key Laboratory of Strongly-Coupled Quantum Matter Physics, University of Science and Technology of China, Hefei, 230026, P. R. China
| | - Song Ding
- Hefei National Research Center for Physical Sciences at the Microscale, Department of Physics and CAS Key Laboratory of Strongly-Coupled Quantum Matter Physics, University of Science and Technology of China, Hefei, 230026, P. R. China
| | - Jiangheng Jia
- Hefei National Research Center for Physical Sciences at the Microscale, Department of Physics and CAS Key Laboratory of Strongly-Coupled Quantum Matter Physics, University of Science and Technology of China, Hefei, 230026, P. R. China
| | - Zhizhan Dai
- Hefei National Research Center for Physical Sciences at the Microscale, Department of Physics and CAS Key Laboratory of Strongly-Coupled Quantum Matter Physics, University of Science and Technology of China, Hefei, 230026, P. R. China
| | - Yaoxin Li
- Hefei National Research Center for Physical Sciences at the Microscale, Department of Physics and CAS Key Laboratory of Strongly-Coupled Quantum Matter Physics, University of Science and Technology of China, Hefei, 230026, P. R. China
| | - Shengchun Shen
- Hefei National Research Center for Physical Sciences at the Microscale, Department of Physics and CAS Key Laboratory of Strongly-Coupled Quantum Matter Physics, University of Science and Technology of China, Hefei, 230026, P. R. China
| | - Songchao Chu
- Anhui Tongfeng Electronics Co., Ltd., Tongling, 244000, P. R. China
| | - Yuewei Yin
- Hefei National Research Center for Physical Sciences at the Microscale, Department of Physics and CAS Key Laboratory of Strongly-Coupled Quantum Matter Physics, University of Science and Technology of China, Hefei, 230026, P. R. China
| | - Xiaoguang Li
- Hefei National Research Center for Physical Sciences at the Microscale, Department of Physics and CAS Key Laboratory of Strongly-Coupled Quantum Matter Physics, University of Science and Technology of China, Hefei, 230026, P. R. China
- Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing, 210093, P. R. China
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12
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Shang Y, Feng Y, Meng Z, Zhang C, Zhang T, Chi Q. Achieving synergistic improvement in dielectric and energy storage properties at high-temperature of all-organic composites via physical electrostatic effect. MATERIALS HORIZONS 2024; 11:1528-1538. [PMID: 38240072 DOI: 10.1039/d3mh01822a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/19/2024]
Abstract
In response to the increasing demand for miniaturization and lightweight equipment, as well as the challenges of application in harsh environments, there is an urgent need to explore the new generation of high-temperature-resistant film capacitors with excellent energy storage properties. In this study, we report an all-organic composite system based on two polymers with similar densities and high glass transition temperatures, achieving a synergistic effect of dielectric constant and breakdown strength. The preparation of the composite is simple, overcoming the challenge of dispersing nanoparticles in traditional organic-inorganic systems. The high polarity of polyethersulfone can modulate the polarization properties of the composites and, through a physical electrostatic effect, inhibit dipole relaxation, further reducing the current density of the composite dielectric at high temperatures, resulting in a significant improvement in insulating properties. The 9 : 1 composite dielectric at 150 °C demonstrates an energy storage density of up to 6.4 J cm-3 and an efficiency of 82.7%. This study offers a promising candidate material and development direction for the next-generation energy storage capacitors with broad application prospects.
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Affiliation(s)
- Yanan Shang
- Key Laboratory of Engineering Dielectrics and Its Application, Ministry of Education, Harbin University of Science and Technology, Harbin 150080, P. R. China.
- School of Electrical and Electronic Engineering, Harbin University of Science and Technology, Harbin 150080, P. R. China
| | - Yu Feng
- Key Laboratory of Engineering Dielectrics and Its Application, Ministry of Education, Harbin University of Science and Technology, Harbin 150080, P. R. China.
- School of Electrical and Electronic Engineering, Harbin University of Science and Technology, Harbin 150080, P. R. China
| | - Zhaotong Meng
- Key Laboratory of Engineering Dielectrics and Its Application, Ministry of Education, Harbin University of Science and Technology, Harbin 150080, P. R. China.
- School of Electrical and Electronic Engineering, Harbin University of Science and Technology, Harbin 150080, P. R. China
| | - Changhai Zhang
- Key Laboratory of Engineering Dielectrics and Its Application, Ministry of Education, Harbin University of Science and Technology, Harbin 150080, P. R. China.
- School of Electrical and Electronic Engineering, Harbin University of Science and Technology, Harbin 150080, P. R. China
| | - Tiandong Zhang
- Key Laboratory of Engineering Dielectrics and Its Application, Ministry of Education, Harbin University of Science and Technology, Harbin 150080, P. R. China.
- School of Electrical and Electronic Engineering, Harbin University of Science and Technology, Harbin 150080, P. R. China
| | - Qingguo Chi
- Key Laboratory of Engineering Dielectrics and Its Application, Ministry of Education, Harbin University of Science and Technology, Harbin 150080, P. R. China.
- School of Electrical and Electronic Engineering, Harbin University of Science and Technology, Harbin 150080, P. R. China
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13
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Lin J, Jiang J, Zhou Y, Fan Q, Zhuang Q, Mi P, Yin W, Zuo P. Constructing Deep Traps to Achieve Excellent Dielectric Properties in Crystal-Based HfO 2/PEI Nanocomposite Films with Ultralow Filler Loadings. ACS APPLIED MATERIALS & INTERFACES 2024; 16:11880-11889. [PMID: 38408367 DOI: 10.1021/acsami.3c17735] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/28/2024]
Abstract
Mixing fillers featured with wide band gaps in polymers can effectively meet the requirement of higher energy storage densities. However, the fundamental relationship between the crystal structures of fillers and the dielectric properties of the corresponding nanocomposites is still unclear. Accordingly, we introduced ultralow contents of the synthesized cubic Hafnium dioxide (c-HfO2) or monoclinic Hafnium dioxide (m-HfO2) as deep traps into poly(ether imide) (PEI) to explore their effects on dielectric properties and the charge-blocking mechanism. m-HfO2/PEI showed better charge trapping due to the higher electron affinity and deeper trap energy. At room temperature, the 0.4 vol % m-HfO2/PEI maintains an ultralow dielectric loss of 0.008 while obtaining a dielectric constant twice that of pure PEI at 1 kHz, simultaneously outperforming in terms of leakage current density, breakdown strength (452 kV mm-1), discharge energy density (Ud, 5.03 J cm-3), charge-discharge efficiency (η, 92%), and dielectric thermal stability. At 125 °C, it exhibits a considerable Ud of 2.48 J cm-3 and a high η of 85% at 300 kV mm-1, surpassing the properties of pure PEI. This promising work opens up a new path for studying HfO2-derived dielectrics with unique crystal structures.
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Affiliation(s)
- Jingyu Lin
- Key Laboratory of Advanced Polymer Materials of Shanghai, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200237, P. R. China
| | - Junhao Jiang
- Key Laboratory of Advanced Polymer Materials of Shanghai, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200237, P. R. China
| | - Yukang Zhou
- Key Laboratory of Advanced Polymer Materials of Shanghai, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200237, P. R. China
| | - Qianqian Fan
- Shanghai Aerospace Control Technology Institute, Shanghai 201109, P. R. China
| | - Qixin Zhuang
- Key Laboratory of Advanced Polymer Materials of Shanghai, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200237, P. R. China
| | - Puke Mi
- Key Laboratory of Advanced Polymer Materials of Shanghai, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200237, P. R. China
| | - Wei Yin
- Key Laboratory of Advanced Polymer Materials of Shanghai, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200237, P. R. China
| | - Peiyuan Zuo
- Key Laboratory of Advanced Polymer Materials of Shanghai, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200237, P. R. China
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14
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Li Z, Zhang Y, Pan Z, Fan X, Li P, Chen W, Liu J, Li W. Enhancing Comprehensive Performance via Capturing and Scattering the Carriers inside PESU-Based Nanocomposite Film Capacitors. ACS APPLIED MATERIALS & INTERFACES 2024; 16:10756-10763. [PMID: 38367030 DOI: 10.1021/acsami.3c18733] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/19/2024]
Abstract
Film capacitors have become key electronic components for electrical energy storage installations and high-power electronic systems. Nonetheless, high-temperature and high-electric-field environments would cause a surge of the energy loss, placing a fundamental challenge for film capacitors applied in harsh environments. Here, we constructed a composite film, combining poly(ether sulfone) (PESU) with excellent thermal stability and large-band-gap filler boron nitride nanosheets (BNNSs). The introduction of BNNSs would form deep/shallow traps inside the dielectric polymer matrix, effectively affecting charge migration. Via density functional theory (DFT) calculation, the higher highest occupied molecular orbital (HOMO) and lowest unoccupied molecular orbital (LUMO) energy levels of the BNNS than the matrix facilitate scattering electrons and attracting holes. The resultant composite obtains the desired discharged energy densities (Ud) of 5.89 and 3.86 J/cm3 accompanied by an efficiency above 90% at 150 and 200 °C, respectively, surpassing those of existing dielectric materials at the high-temperature conditions. The paper provides a promising composite dielectric material for high-performance film capacitors capable of operating in harsh environments.
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Affiliation(s)
- Zhicheng Li
- School of Materials Science and Chemical Engineering, Ningbo University, Ningbo 315211, Zhejiang, China
| | - Yu Zhang
- Solid State Physics & Material Research Laboratory, School of Physics and Materials Science, Guangzhou University, Guangzhou 510006, China
| | - Zhongbin Pan
- School of Materials Science and Chemical Engineering, Ningbo University, Ningbo 315211, Zhejiang, China
| | - Xu Fan
- School of Materials Science and Chemical Engineering, Ningbo University, Ningbo 315211, Zhejiang, China
| | - Peng Li
- School of Materials Science and Engineering, Liaocheng University, Liaocheng 252059, China
| | - Weidong Chen
- Institute of Corrosion Science and Technology, Guangzhou 510530, Guangdong, China
| | - Jinjun Liu
- School of Materials Science and Chemical Engineering, Ningbo University, Ningbo 315211, Zhejiang, China
| | - Weiping Li
- Department of Microelectronics Science and Engineering, School of Physical Science and Technology and Laboratory of Clean Energy Storage and Conversion, Ningbo University, Ningbo 315211, Zhejiang, China
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15
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Yue D, Zhang W, Wang P, Zhang Y, Teng Y, Yin J, Feng Y. Constructing asymmetric gradient structures to enhance the energy storage performance of PEI-based composite dielectrics. MATERIALS HORIZONS 2024; 11:726-736. [PMID: 38014471 DOI: 10.1039/d3mh00907f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/29/2023]
Abstract
Enhancing the high electric field resistance and energy storage capacity of polymer dielectrics has been a long-standing challenge for the iterations of power equipment. Synergistic inhibition of carrier injection and transport is vital to energy storage performance improvement. Herein, promising polymer polyetherimide (PEI) was employed as a matrix and wider bandgap boron nitride nanosheets (BNNSs) were used as a reinforcing filler. Utilizing high-throughput stochastic breakdown simulations with the distribution characteristics of BNNSs as parameters, a series of topological gradient structures with the potential to enhance performance were obtained, thereby shortening the experimental cycle. Changing the BNNS distribution of symmetric/asymmetric and positive/inverse gradients, as well as the total and gradient contents of BNNSs, means that the position and condition of the surface barrier layer and central hinder layer change, which influences the energy storage performance of the polymer at room temperature and high temperature. Remarkably, the asymmetric gradient structure composite dielectrics exhibited excellent performances. Among them, the PEI-based composite dielectric with 2 vol% BNNS asymmetric inverse gradient distribution (gradient content of 1 vol%) achieved energy densities of 8.26 and 4.78 J cm-3 at room temperature and 150 °C, respectively. The asymmetric gradient structure design strategy holds great promise for optimizing the energy storage capacity of polymer dielectric capacitors.
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Affiliation(s)
- Dong Yue
- Key Laboratory of Engineering Dielectrics and Its Application, Ministry of Education, Harbin University of Science and Technology, Harbin, 150080, P.R. China.
- School of Electrical and Electronic Engineering, Harbin University of Science and Technology, Harbin, 150080, P.R. China
| | - Wenchao Zhang
- Key Laboratory of Engineering Dielectrics and Its Application, Ministry of Education, Harbin University of Science and Technology, Harbin, 150080, P.R. China.
- School of Electrical and Electronic Engineering, Harbin University of Science and Technology, Harbin, 150080, P.R. China
| | - Puzhen Wang
- Key Laboratory of Engineering Dielectrics and Its Application, Ministry of Education, Harbin University of Science and Technology, Harbin, 150080, P.R. China.
- School of Electrical and Electronic Engineering, Harbin University of Science and Technology, Harbin, 150080, P.R. China
| | - Yong Zhang
- Key Laboratory of Engineering Dielectrics and Its Application, Ministry of Education, Harbin University of Science and Technology, Harbin, 150080, P.R. China.
- School of Electrical and Electronic Engineering, Harbin University of Science and Technology, Harbin, 150080, P.R. China
| | - Yu Teng
- Key Laboratory of Engineering Dielectrics and Its Application, Ministry of Education, Harbin University of Science and Technology, Harbin, 150080, P.R. China.
- School of Electrical and Electronic Engineering, Harbin University of Science and Technology, Harbin, 150080, P.R. China
| | - Jinghua Yin
- Key Laboratory of Engineering Dielectrics and Its Application, Ministry of Education, Harbin University of Science and Technology, Harbin, 150080, P.R. China.
- School of Electrical and Electronic Engineering, Harbin University of Science and Technology, Harbin, 150080, P.R. China
| | - Yu Feng
- Key Laboratory of Engineering Dielectrics and Its Application, Ministry of Education, Harbin University of Science and Technology, Harbin, 150080, P.R. China.
- School of Electrical and Electronic Engineering, Harbin University of Science and Technology, Harbin, 150080, P.R. China
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16
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Li Z, Wu C, Chen L, Wang Y, Mutulu Z, Uehara H, Zhou J, Cakmak M, Ramprasad R, Cao Y. Probing Electronic Band Structures of Dielectric Polymers via Pre-Breakdown Conduction. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2024:e2310497. [PMID: 38215240 DOI: 10.1002/adma.202310497] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/10/2023] [Revised: 01/06/2024] [Indexed: 01/14/2024]
Abstract
The electronic band structure, especially the defect states at the conduction band tail, dominates electron transport and electrical degradation of a dielectric material under an extremely high electric field. However, the electronic band structure in a dielectric is barely well studied due to experimental challenges in detecting the electrical conduction to an extremely high electric field, i.e., prebreakdown. In this work, the electronic band structure of polymer dielectric films is probed through an in situ prebreakdown conduction measurement method in conjunction with a space-charge-limited-current spectroscopic analysis. An exponential distribution of defect states at the conduction band tail with varying trap levels is observed in accordance with the specific morphological disorder in the polymer dielectric, and the experimental defect states show also a favorable agreement with the calculated density of states from the density functional theory. The methodology demonstrated in this work bridges the molecule-structure-determined electronic band structure and the macro electrical conduction behavior with a highly improved understanding of material properties that control the electrical breakdown, and paves a way for guiding the modification of existing material and the exploration of novel materials for high electric field applications.
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Affiliation(s)
- Zongze Li
- Electrical Insulation Research Center, University of Connecticut, 97 N Eagleville Rd, Storrs, CT, 06269, USA
- Electrical and Computer Engineering, University of Connecticut, 371 Fairfield Way, Storrs, CT, 06269, USA
| | - Chao Wu
- Electrical Insulation Research Center, University of Connecticut, 97 N Eagleville Rd, Storrs, CT, 06269, USA
- Electrical and Computer Engineering, University of Connecticut, 371 Fairfield Way, Storrs, CT, 06269, USA
- Department of Electrical Engineering, Tsinghua University, Beijing, 100084, China
| | - Lihua Chen
- School of Materials Science and Engineering, Georgia Institute of Technology, 771 Ferst Drive NW, Atlanta, GA, 30332, USA
| | - Yifei Wang
- Electrical Insulation Research Center, University of Connecticut, 97 N Eagleville Rd, Storrs, CT, 06269, USA
- Electrical and Computer Engineering, University of Connecticut, 371 Fairfield Way, Storrs, CT, 06269, USA
| | - Zeynep Mutulu
- Departments of Materials Engineering and Mechanical Engineering, Purdue University, West Lafayette, IN, 47907, USA
| | - Hiroaki Uehara
- Department of Electrical Engineering, Kanto Gakuin University, 1-50-1 Mutsuura-higashi, Kanazawa-ku, Yokohama, 236-8501, Japan
| | - Jierui Zhou
- Electrical Insulation Research Center, University of Connecticut, 97 N Eagleville Rd, Storrs, CT, 06269, USA
- Electrical and Computer Engineering, University of Connecticut, 371 Fairfield Way, Storrs, CT, 06269, USA
| | - Miko Cakmak
- Departments of Materials Engineering and Mechanical Engineering, Purdue University, West Lafayette, IN, 47907, USA
| | - Rampi Ramprasad
- School of Materials Science and Engineering, Georgia Institute of Technology, 771 Ferst Drive NW, Atlanta, GA, 30332, USA
| | - Yang Cao
- Electrical Insulation Research Center, University of Connecticut, 97 N Eagleville Rd, Storrs, CT, 06269, USA
- Electrical and Computer Engineering, University of Connecticut, 371 Fairfield Way, Storrs, CT, 06269, USA
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17
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Ding J, Zhou Y, Xu W, Yang F, Zhao D, Zhang Y, Jiang Z, Wang Q. Ultraviolet-Irradiated All-Organic Nanocomposites with Polymer Dots for High-Temperature Capacitive Energy Storage. NANO-MICRO LETTERS 2023; 16:59. [PMID: 38117348 PMCID: PMC10733267 DOI: 10.1007/s40820-023-01230-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/08/2023] [Accepted: 09/30/2023] [Indexed: 12/21/2023]
Abstract
Polymer dielectrics capable of operating efficiently at high electric fields and elevated temperatures are urgently demanded by next-generation electronics and electrical power systems. While inorganic fillers have been extensively utilized to improved high-temperature capacitive performance of dielectric polymers, the presence of thermodynamically incompatible organic and inorganic components may lead to concern about the long-term stability and also complicate film processing. Herein, zero-dimensional polymer dots with high electron affinity are introduced into photoactive allyl-containing poly(aryl ether sulfone) to form the all-organic polymer composites for high-temperature capacitive energy storage. Upon ultraviolet irradiation, the crosslinked polymer composites with polymer dots are efficient in suppressing electrical conduction at high electric fields and elevated temperatures, which significantly reduces the high-field energy loss of the composites at 200 °C. Accordingly, the ultraviolet-irradiated composite film exhibits a discharged energy density of 4.2 J cm-3 at 200 °C. Along with outstanding cyclic stability of capacitive performance at 200 °C, this work provides a promising class of dielectric materials for robust high-performance all-organic dielectric nanocomposites.
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Affiliation(s)
- Jiale Ding
- College of Chemistry, Jilin University, Changchun, 130012, People's Republic of China
| | - Yao Zhou
- Department of Materials Science and Engineering, The Pennsylvania State University, University Park, PA, 16802, USA
| | - Wenhan Xu
- Department of Materials Science and Engineering, The Pennsylvania State University, University Park, PA, 16802, USA.
- Deutsches Elektronen-Synchrotron DESY, Notkestr. 85, 22607, Hamburg, Germany.
| | - Fan Yang
- College of Chemistry, Jilin University, Changchun, 130012, People's Republic of China
| | - Danying Zhao
- College of Chemistry, Jilin University, Changchun, 130012, People's Republic of China
| | - Yunhe Zhang
- College of Chemistry, Jilin University, Changchun, 130012, People's Republic of China.
| | - Zhenhua Jiang
- College of Chemistry, Jilin University, Changchun, 130012, People's Republic of China
| | - Qing Wang
- Department of Materials Science and Engineering, The Pennsylvania State University, University Park, PA, 16802, USA.
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18
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Meng Z, Zhang T, Zhang C, Shang Y, Lei Q, Chi Q. Advances in Polymer Dielectrics with High Energy Storage Performance by Designing Electric Charge Trap Structures. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2023:e2310272. [PMID: 38109702 DOI: 10.1002/adma.202310272] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/04/2023] [Revised: 12/06/2023] [Indexed: 12/20/2023]
Abstract
Dielectric capacitors have been developed for nearly a century, and all-polymer film capacitors are currently the most popular. Much effort has been devoted to studying polymer dielectric capacitors and improving their capacitive performance, but their high conductivity and capacitance losses under high electric fields or elevated temperatures are still significant challenges. Although many review articles have reported various strategies to address these problems, to the best of current knowledge, no review article has summarized the recent progress in the high-energy storage performance of polymer-based dielectric films with electric charge trap structures. Therefore, this paper first reviews the charge trap characterization methods for polymeric dielectrics and discusses their strengths and weaknesses. The research progress on the design of charge trap structures in polymer dielectric films, including molecular chain optimization, organic doping, blending modification, inorganic doping, multilayered structures, and the mechanisms of the charge trap-induced enhancement of the capacitive performance of polymers are systematically reviewed. Finally, a summary and outlook on the fundamental theory of charge trap regulation, performance characterization, numerical calculations, and engineering applications are presented. This review provides a valuable reference for improving the insulation and energy storage performance of dielectric capacitive films.
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Affiliation(s)
- Zhaotong Meng
- Key Laboratory of Engineering Dielectrics and Its Application, Ministry of Education, Harbin University of Science and Technology, Harbin, 150080, P. R. China
- School of Electrical and Electronic Engineering, Harbin University of Science and Technology, Harbin, 150080, P. R. China
| | - Tiandong Zhang
- Key Laboratory of Engineering Dielectrics and Its Application, Ministry of Education, Harbin University of Science and Technology, Harbin, 150080, P. R. China
- School of Electrical and Electronic Engineering, Harbin University of Science and Technology, Harbin, 150080, P. R. China
| | - Changhai Zhang
- Key Laboratory of Engineering Dielectrics and Its Application, Ministry of Education, Harbin University of Science and Technology, Harbin, 150080, P. R. China
- School of Electrical and Electronic Engineering, Harbin University of Science and Technology, Harbin, 150080, P. R. China
| | - Yanan Shang
- Key Laboratory of Engineering Dielectrics and Its Application, Ministry of Education, Harbin University of Science and Technology, Harbin, 150080, P. R. China
- School of Electrical and Electronic Engineering, Harbin University of Science and Technology, Harbin, 150080, P. R. China
| | - Qingquan Lei
- Key Laboratory of Engineering Dielectrics and Its Application, Ministry of Education, Harbin University of Science and Technology, Harbin, 150080, P. R. China
- School of Electrical and Electronic Engineering, Harbin University of Science and Technology, Harbin, 150080, P. R. China
| | - Qingguo Chi
- Key Laboratory of Engineering Dielectrics and Its Application, Ministry of Education, Harbin University of Science and Technology, Harbin, 150080, P. R. China
- School of Electrical and Electronic Engineering, Harbin University of Science and Technology, Harbin, 150080, P. R. China
- School of Electrical Engineering, Dalian University of Technology, Dalian, 116024, P. R. China
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19
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Yang M, Wang Z, Zhao Y, Liu Z, Pang H, Dang ZM. Unifying and Suppressing Conduction Losses of Polymer Dielectrics for Superior High-Temperature Capacitive Energy Storage. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2023:e2309640. [PMID: 38100119 DOI: 10.1002/adma.202309640] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/18/2023] [Revised: 11/02/2023] [Indexed: 12/31/2023]
Abstract
Superior high-temperature capacitive performance of polymer dielectrics is critical for the modern film capacitor demanded in the harsh-environment electronic and electrical systems. Unfortunately, the capacitive performance degrades rapidly at elevated temperatures owing to the exponential growth of conduction loss. The conduction loss is mainly composed of electrode and bulk-limited conduction. Herein, the contribution of surface and bulk factors is unified to conduction loss, and the loss is thoroughly suppressed. The experimental results demonstrate that the polar oxygen-containing groups on the surface of polymer dielectrics can act as the charge trap sites to immobilize the injected charges from electrode, which can in turn establish a built-in field to weaken the external electric field and augment the injection barrier height. Wide bandgap aluminum oxide (Al2 O3 ) nanoparticle fillers can serve as deep traps to constrain the transport of injected or thermally activated charges in the bulk phase. From this, at 200 °C, the discharged energy density with a discharge-charge efficiency of 90% increases by 1058.06% from 0.31 J cm-3 for pristine polyetherimide to 3.59 J cm-3 for irradiated composite film. The principle of simultaneously inhibiting the electrode and bulk-limited conduction losses could be easily extended to other polymer dielectrics for high-temperature capacitive performance.
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Affiliation(s)
- Minhao Yang
- Institute of Energy Power Innovation, North China Electric Power University, Beijing, 102206, China
- State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources, North China Electric Power University, Beijing, 102206, China
- State Key Laboratory of Power System Operation and Control, Tsinghua University, Beijing, 100084, China
| | - Zepeng Wang
- Institute of Energy Power Innovation, North China Electric Power University, Beijing, 102206, China
- State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources, North China Electric Power University, Beijing, 102206, China
| | - Yanlong Zhao
- Institute of Energy Power Innovation, North China Electric Power University, Beijing, 102206, China
| | - Zeren Liu
- Institute of Energy Power Innovation, North China Electric Power University, Beijing, 102206, China
- State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources, North China Electric Power University, Beijing, 102206, China
| | - Hui Pang
- State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources, North China Electric Power University, Beijing, 102206, China
- Huairou Laboratory, Beijing, 101499, China
| | - Zhi-Min Dang
- State Key Laboratory of Power System Operation and Control, Tsinghua University, Beijing, 100084, China
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20
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Li X, Xie Y, Xiong J, Zhu B, Zhang X, Duan X, Dong B, Zhang Z. Superior high-temperature capacitive performance of polyaryl ether ketone copolymer composites enabled by interfacial engineered charge traps. MATERIALS HORIZONS 2023; 10:5881-5891. [PMID: 37861652 DOI: 10.1039/d3mh01257c] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/21/2023]
Abstract
Metalized film capacitors with high-temperature capacitive performance are crucial components in contemporary electromagnetic energy systems. However, the fabrication of polymer-based dielectric composites with designed structures faces the challenge of balancing high energy density (Ue) and low energy loss induced by electric field distortion at the interfaces. Here, BN nanoparticles coated with a thin layer of aminobenzoic acid (ABA) voltage stabilizer are introduced into a copolymer of aryletherketone and 2,6-bis(2-benzimidazolyl)pyridine (P(AEK-BBP)). Our results demonstrate that the ABA voltage stabilizer, possessing high electron affinity, significantly improves the dispersion of BN particles within the matrix, mitigates electric field distortion, and creates effective charge traps. This, in turn, effectively suppresses high-temperature-induced Schottky emission and P-F emission, leading to a dramatic decrease in leakage loss. As a result, the optimized composite film, filled with 0.3 vol% m-ABA-BN particles, exhibites a Ue of 10.1 J cm-3 and a η of 90% at 150 °C and 600 MV m-1, surpassing the majority of previously reported materials. Furthermore, even after undergoing 100 000 cycles at 150 °C and 250 MV m-1, the composite dielectric films demonstrate favorable charge-discharge characteristics. This work offers a novel approach to fabricate polymer-based dielectric materials with high-temperature resistance and high discharging efficiency for long-term high energy storage applications.
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Affiliation(s)
- Xinyi Li
- Department of Applied Chemistry, Xi'an Key Laboratory of Sustainable Energy Materials Chemistry, National Innovation Platform (Center) for Industry-Education Integration of Energy Storage Technology, Engineering Research Center of Energy Storage Materials and Devices of Ministry of Education, School of Chemistry, Xi'an Jiaotong University, Xi'an 710049, P. R. China.
| | - Yunchuan Xie
- Department of Applied Chemistry, Xi'an Key Laboratory of Sustainable Energy Materials Chemistry, National Innovation Platform (Center) for Industry-Education Integration of Energy Storage Technology, Engineering Research Center of Energy Storage Materials and Devices of Ministry of Education, School of Chemistry, Xi'an Jiaotong University, Xi'an 710049, P. R. China.
| | - Jie Xiong
- Department of Applied Chemistry, Xi'an Key Laboratory of Sustainable Energy Materials Chemistry, National Innovation Platform (Center) for Industry-Education Integration of Energy Storage Technology, Engineering Research Center of Energy Storage Materials and Devices of Ministry of Education, School of Chemistry, Xi'an Jiaotong University, Xi'an 710049, P. R. China.
| | - Bofeng Zhu
- National Key Laboratory of Science and Technology on Vessel Integrated Power System, Naval University of Engineering, Wuhan 430034, P. R. China.
| | - Xiao Zhang
- National Key Laboratory of Science and Technology on Vessel Integrated Power System, Naval University of Engineering, Wuhan 430034, P. R. China.
| | - Xinhua Duan
- Department of Applied Chemistry, Xi'an Key Laboratory of Sustainable Energy Materials Chemistry, National Innovation Platform (Center) for Industry-Education Integration of Energy Storage Technology, Engineering Research Center of Energy Storage Materials and Devices of Ministry of Education, School of Chemistry, Xi'an Jiaotong University, Xi'an 710049, P. R. China.
| | - Bo Dong
- Shandong Chambroad Holding Group Co., Ltd, Binzhou, Shandong Province, 256500, P. R. China.
| | - Zhicheng Zhang
- Department of Applied Chemistry, Xi'an Key Laboratory of Sustainable Energy Materials Chemistry, National Innovation Platform (Center) for Industry-Education Integration of Energy Storage Technology, Engineering Research Center of Energy Storage Materials and Devices of Ministry of Education, School of Chemistry, Xi'an Jiaotong University, Xi'an 710049, P. R. China.
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21
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Tian Y, Zheng MS, Li Y, Xu C, Zhang Y, Liu W, Dang ZM, Zha JW. Intrinsic-designed polyimide dielectric materials with large energy storage density and discharge efficiency at harsh ultra-high temperatures. MATERIALS HORIZONS 2023; 10:5835-5846. [PMID: 37843469 DOI: 10.1039/d3mh01267k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/17/2023]
Abstract
Polymer dielectric materials with excellent temperature stability are urgently needed for the ever-increasing energy storage requirements under harsh high-temperature conditions. In this work, a novel diamine monomer (bis(2-cyano-4-aminophenyl)amine) was successfully synthesized to prepare a series of cyano-containing polyimides (CPI-1-3), which possessed excellent dielectric properties and high thermostability. The maximum dielectric permittivity was up to 5.5 at 102 Hz for CPI-3, being 2.5 times higher than that of commercially used BOPP. In comparison, the CPI-1 exhibited an outstanding breakdown strength of 433 MV m-1 and a high energy density of 2.5 J cm-3 even at 250 °C, which was the highest value reported under the same conditions. The synthesized CPIs through such an intrinsic approach are potential candidate materials for energy storage and even other applications under simultaneously harsh electrical and thermal conditions.
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Affiliation(s)
- Yaya Tian
- Beijing Advanced Innovation Center for Materials Genome Engineering, School of Chemistry and Biological Engineering, University of Science & Technology Beijing, Beijing 100083, P. R. China.
| | - Ming-Sheng Zheng
- Beijing Advanced Innovation Center for Materials Genome Engineering, School of Chemistry and Biological Engineering, University of Science & Technology Beijing, Beijing 100083, P. R. China.
| | - Yuchao Li
- School of Materials Science and Engineering, Liaocheng University, Liaocheng, 252059, P. R. China.
| | - Chuqi Xu
- School of Electrical Engineering, Guangxi University, Nanning 530004, P. R. China
| | - Yiyi Zhang
- School of Electrical Engineering, Guangxi University, Nanning 530004, P. R. China
| | - Wei Liu
- School of Materials Science and Engineering, Nanchang Hangkong University, Nanchang 330063, P. R. China
| | - Zhi-Min Dang
- State Key Laboratory of Power System, Department of Electrical Engineering, Tsinghua University, Beijing 100084, P. R. China
| | - Jun-Wei Zha
- Beijing Advanced Innovation Center for Materials Genome Engineering, School of Chemistry and Biological Engineering, University of Science & Technology Beijing, Beijing 100083, P. R. China.
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22
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Ran Z, Wang R, Fu J, Yang M, Li M, Hu J, He J, Li Q. Spiral-Structured Dielectric Polymers Exhibiting Ultrahigh Energy Density and Charge-Discharge Efficiency at High Temperatures. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2023; 35:e2303849. [PMID: 37532461 DOI: 10.1002/adma.202303849] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/25/2023] [Revised: 07/30/2023] [Indexed: 08/04/2023]
Abstract
The growing need for high-power and compact-size energy storage in modern electronic and electrical systems demands polymer film capacitors with excellent temperature capability. However, conventional polymer dielectrics feature dramatic deterioration in capacitive performance under concurrent high temperature and electric field because the high thermal stability traditionally relies on the conjugated, planar molecular segments in the polymer chains. Herein, inspired by the stable double helix structures of deoxyribonucleic acid, spiral-structured dielectric polymers that exhibit simultaneous high thermal stability and great capacitive performance are demonstrated. Both the experimental results and computational simulations confirm that the spiral groups serve to weaken the electrostatic molecular interaction, induce proper molecular chain stacking structure, and regulate the charge transfer process by breaking the conjugated planes and introducing deep trap sites. The resultant polymer exhibits the maximum discharged energy densities of 7.29 and 6.13 J cm-3 with the charge-discharge efficiency above 90% at 150 and 200 °C, respectively, more than ten times those of the original dielectric at the same conditions. Here a completely new dimension is offered for the molecular design of polymers, giving rise to well-balanced thermal and dielectric properties, and ultimately the desired capacitive energy storage performance at high temperatures.
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Affiliation(s)
- Zhaoyu Ran
- A State Key Laboratory of Power Systems, Department of Electrical Engineering, Tsinghua University, Beijing, 100084, China
| | - Rui Wang
- A State Key Laboratory of Power Systems, Department of Electrical Engineering, Tsinghua University, Beijing, 100084, China
| | - Jing Fu
- A State Key Laboratory of Power Systems, Department of Electrical Engineering, Tsinghua University, Beijing, 100084, China
| | - Mingcong Yang
- A State Key Laboratory of Power Systems, Department of Electrical Engineering, Tsinghua University, Beijing, 100084, China
| | - Manxi Li
- A State Key Laboratory of Power Systems, Department of Electrical Engineering, Tsinghua University, Beijing, 100084, China
| | - Jun Hu
- A State Key Laboratory of Power Systems, Department of Electrical Engineering, Tsinghua University, Beijing, 100084, China
| | - Jinliang He
- A State Key Laboratory of Power Systems, Department of Electrical Engineering, Tsinghua University, Beijing, 100084, China
| | - Qi Li
- A State Key Laboratory of Power Systems, Department of Electrical Engineering, Tsinghua University, Beijing, 100084, China
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23
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You L, Liu B, Hua H, Jiang H, Yin C, Wen F. Energy Storage Performance of Polymer-Based Dielectric Composites with Two-Dimensional Fillers. NANOMATERIALS (BASEL, SWITZERLAND) 2023; 13:2842. [PMID: 37947688 PMCID: PMC10650859 DOI: 10.3390/nano13212842] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/13/2023] [Revised: 10/09/2023] [Accepted: 10/18/2023] [Indexed: 11/12/2023]
Abstract
Dielectric capacitors have garnered significant attention in recent decades for their wide range of uses in contemporary electronic and electrical power systems. The integration of a high breakdown field polymer matrix with various types of fillers in dielectric polymer nanocomposites has attracted significant attention from both academic and commercial sectors. The energy storage performance is influenced by various essential factors, such as the choice of the polymer matrix, the filler type, the filler morphologies, the interfacial engineering, and the composite structure. However, their application is limited by their large amount of filler content, low energy densities, and low-temperature tolerance. Very recently, the utilization of two-dimensional (2D) materials has become prevalent across several disciplines due to their exceptional thermal, electrical, and mechanical characteristics. Compared with zero-dimensional (0D) and one-dimensional (1D) fillers, two-dimensional fillers are more effective in enhancing the dielectric and energy storage properties of polymer-based composites. The present review provides a comprehensive overview of 2D filler-based composites, encompassing a wide range of materials such as ceramics, metal oxides, carbon compounds, MXenes, clays, boron nitride, and others. In a general sense, the incorporation of 2D fillers into polymer nanocomposite dielectrics can result in a significant enhancement in the energy storage capability, even at low filler concentrations. The current challenges and future perspectives are also discussed.
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Affiliation(s)
- Liwen You
- Faculty of Mathematical and Physical Sciences, University College London, London WC1E 6BT, UK
| | - Benjamin Liu
- Environmental and Chemistry, Middlebury College, Middlebury, VT 05753, USA
| | - Hongyang Hua
- Talent Program from China Association for Science and Technology and the Ministry of Education, Beijing Science Center, Beijing 100190, China
| | - Hailong Jiang
- Department of Materials Science and Engineering, Boston University, Boston, MA 02215, USA
| | - Chuan Yin
- College of Electronics and Information, Hangzhou Dianzi University, Hangzhou 310018, China
| | - Fei Wen
- School of Mechanical Engineering, Hangzhou Dianzi University, Hangzhou 310018, China
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24
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Naor T, Gigi S, Waiskopf N, Jacobi G, Shoshani S, Kam D, Magdassi S, Banin E, Banin U. ZnO Quantum Photoinitiators as an All-in-One Solution for Multifunctional Photopolymer Nanocomposites. ACS NANO 2023; 17:20366-20375. [PMID: 37787507 PMCID: PMC10604079 DOI: 10.1021/acsnano.3c06518] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/16/2023] [Accepted: 09/28/2023] [Indexed: 10/04/2023]
Abstract
Nanocomposites are constructed from a matrix material combined with dispersed nanosized filler particles. Such a combination yields a powerful ability to tailor the desired mechanical, optical, electrical, thermodynamic, and antimicrobial material properties. Colloidal semiconductor nanocrystals (SCNCs) are exciting potential fillers, as they display size-, shape-, and composition-controlled properties and are easily embedded in diverse matrices. Here we present their role as quantum photoinitiators (QPIs) in acrylate-based polymer, where they act as a catalytic radical initiator and endow the system with mechanical, photocatalytic, and antimicrobial properties. By utilizing ZnO nanorods (NRs) as QPIs, we were able to increase the tensile strength and elongation at break of poly(ethylene glycol) diacrylate (PEGDA) hydrogels by up to 85%, unlike the use of the same ZnO NRs acting merely as fillers. Simultaneously, we endowed the PEGDA hydrogels with post-polymerization photocatalytic and antimicrobial activities and showed their ability to decompose methylene blue and significantly eradicate antibiotic-resistant bacteria and viral pathogens. Moreover, we demonstrate two fabrication showcase methods, traditional molding and digital light processing printing, that can yield hydrogels with complex architectures. These results position SCNC-based systems as promising candidates to act as all-in-one photoinitiators and fillers in nanocomposites for diverse biomedical applications, where specific and purpose-oriented characteristics are required.
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Affiliation(s)
- Tom Naor
- The
Institute of Chemistry and The Center for Nanoscience and Nanotechnology, The Hebrew University of Jerusalem, Jerusalem 91904, Israel
| | - Shira Gigi
- The
Institute of Chemistry and The Center for Nanoscience and Nanotechnology, The Hebrew University of Jerusalem, Jerusalem 91904, Israel
| | - Nir Waiskopf
- The
Institute of Chemistry and The Center for Nanoscience and Nanotechnology, The Hebrew University of Jerusalem, Jerusalem 91904, Israel
| | - Gila Jacobi
- The
Mina and Everard Goodman Faculty of Life Sciences and Advanced Materials
and Nanotechnology Institute, Bar-Ilan University, Ramat-Gan 5290002, Israel
| | - Sivan Shoshani
- The
Mina and Everard Goodman Faculty of Life Sciences and Advanced Materials
and Nanotechnology Institute, Bar-Ilan University, Ramat-Gan 5290002, Israel
| | - Doron Kam
- Casali
Center for Applied Chemistry, Institute of Chemistry, The Hebrew University of Jerusalem, 91904 Jerusalem, Israel
| | - Shlomo Magdassi
- Casali
Center for Applied Chemistry, Institute of Chemistry, The Hebrew University of Jerusalem, 91904 Jerusalem, Israel
| | - Ehud Banin
- The
Mina and Everard Goodman Faculty of Life Sciences and Advanced Materials
and Nanotechnology Institute, Bar-Ilan University, Ramat-Gan 5290002, Israel
| | - Uri Banin
- The
Institute of Chemistry and The Center for Nanoscience and Nanotechnology, The Hebrew University of Jerusalem, Jerusalem 91904, Israel
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25
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Yan J, Wang H, Zeng J, Zhang X, Nan CW, Zhang S. Carboxylated Poly (p-Phenylene Terephthalamide) Reinforced Polyetherimide for High-Temperature Dielectric Energy Storage. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2023; 19:e2304310. [PMID: 37340581 DOI: 10.1002/smll.202304310] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/04/2023] [Indexed: 06/22/2023]
Abstract
Dielectric energy storage polymers play a vital role in advanced electronics and electrical systems, due to their high breakdown strength, excellent reliability, and easy fabrication. However, the low dielectric constant and poor thermal resistance of dielectric polymers limit their energy storage density and working temperatures, making them less versatile for broader applications. In this work, a novel carboxylated poly (p-phenylene terephthalamide) (c-PPTA) is synthesized and employed to simultaneously enhance the dielectric constant and thermal resistance of polyetherimide (PEI), leading to a discharged energy density of 6.4 J cm-3 at 150 °C. The introduction of c-PPTA molecules effectively reduces the ΠΠ stacking effect and increases the average chain spacing between polymer molecules, which is conducive to improving the dielectric constant. Additionally, c-PPTA molecules with stronger positive charges and high dipole moments can capture electrons, resulting in reduced conduction loss and enhanced breakdown strength at high temperatures. The coiled capacitor fabricated with the PEI/c-PPTA film exhibits superior capacitance performances and higher working temperatures compared to commercial metalized PP capacitors, demonstrating great potential for dielectric polymers in high-temperature electronic and electrical energy storage systems.
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Affiliation(s)
- Jingjing Yan
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Center of Smart Materials and Devices, Wuhan University of Technology, Wuhan, 430070, P. R. China
| | - Huan Wang
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Center of Smart Materials and Devices, Wuhan University of Technology, Wuhan, 430070, P. R. China
| | - Junyang Zeng
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Center of Smart Materials and Devices, Wuhan University of Technology, Wuhan, 430070, P. R. China
| | - Xin Zhang
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Center of Smart Materials and Devices, Wuhan University of Technology, Wuhan, 430070, P. R. China
- International School of Materials Science and Engineering, Wuhan University of Technology, Wuhan, 430070, P. R. China
| | - Ce-Wen Nan
- School of Materials Science and Engineering State Key Lab of New Ceramics and Fine Processing, Tsinghua University, Beijing, 100084, P. R. China
| | - Shujun Zhang
- Institute for Superconducting and Electronic Materials, Australian Institute of Innovative Materials, University of Wollongong, North Wollongong, 2522, Australia
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26
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Wang TY, Li XF, Jie Z, Liu BX, Zhang G, Liu JB, Dang ZM, Wang ZL. Polymer Dielectrics with Outstanding Dielectric Characteristics via Passivation with Oxygen Atoms through C-F Vacancy Carbonylation. NANO LETTERS 2023; 23:8808-8815. [PMID: 37459604 DOI: 10.1021/acs.nanolett.3c01987] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/28/2023]
Abstract
The development of advanced electrical equipment necessitates polymer dielectrics with a higher electric strength. Unfortunately, this bottleneck problem has yet to be solved because current material modification methods do not allow direct control of deep traps. Here, we propose a method for directly passivating deep traps. Measurements of nanoscale microregion charge characteristics and trap parameters reveal a significant reduction in the number of deep traps. The resulting polymer dielectric has an impressively high electrical strength, less surface charge accumulation, and a significantly increased flashover voltage and breakdown strength. In addition, the energy storage density is increased without sacrificing the charge-discharge efficiency. This reveals a new approach to increasing the energy storage density by reducing the trap energy levels at the electrode-dielectric interface. We further calculated and analyzed the microscopic physical mechanism of deep trap passivation based on density functional theory and characterized the contributions of orbital composition and orbital hybridization.
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Affiliation(s)
- Tian-Yu Wang
- State Key Laboratory of Control and Simulation of Power System and Generation Equipment, Department of Electrical Engineering, Tsinghua University, Beijing 100084, China
| | - Xiao-Fen Li
- Key Laboratory of Advanced Materials (MOE), School of Materials Science and Engineering, Tsinghua University, Beijing 100084, China
| | - Ziyao Jie
- State Key Laboratory of Control and Simulation of Power System and Generation Equipment, Department of Electrical Engineering, Tsinghua University, Beijing 100084, China
| | - Bai-Xin Liu
- Key Laboratory of Advanced Materials (MOE), School of Materials Science and Engineering, Tsinghua University, Beijing 100084, China
| | - Guixin Zhang
- State Key Laboratory of Control and Simulation of Power System and Generation Equipment, Department of Electrical Engineering, Tsinghua University, Beijing 100084, China
| | - Jian-Bo Liu
- Key Laboratory of Advanced Materials (MOE), School of Materials Science and Engineering, Tsinghua University, Beijing 100084, China
| | - Zhi-Min Dang
- State Key Laboratory of Control and Simulation of Power System and Generation Equipment, Department of Electrical Engineering, Tsinghua University, Beijing 100084, China
| | - Zhong Lin Wang
- CAS Center for Excellence in Nanoscience, Beijing Institute of Nanoenergy and Nanosystems, Chinese Academy of Sciences, Beijing 100083, China
- School of Material Science and Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332, United States
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27
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Li X, Luo H, Yang C, Wang F, Jiang X, Guo R, Zhang D. Enhancing High-Temperature Energy Storage Performance of PEI-Based Dielectrics by Incorporating ZIF-67 with a Narrow Bandgap. ACS APPLIED MATERIALS & INTERFACES 2023; 15:41828-41838. [PMID: 37632445 DOI: 10.1021/acsami.3c06778] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/28/2023]
Abstract
Polymer dielectrics are crucial for use in electrostatic capacitors, owing to their high voltage resistance, high energy storage density, and ultrahigh reliability. Furthermore, high-temperature-resistant polymer dielectrics are applied in various emerging fields. Herein, poly(ether imide) (PEI)-based polymer dielectrics prepared by adding a low loading of dimethylimidazolium cobalt (ZIF-67) with a narrow bandgaps are investigated. The results show that the composites exhibit considerably increased Young's modulus, suppressed conductivity loss, and improved breakdown strength compared with pure PEI. Consequently, a stable energy storage performance is realized for ZIF-67/PEI composites. Particularly, at 150 °C, 1 wt % ZIF-67/PEI composite affords an excellent energy storage density of 4.59 J/cm3 with a discharge energy efficiency of 80.6%, exhibiting a considerable increase compared with the values obtained for PEI (2.58 J/cm3 with a discharge energy efficiency of 68.8%). The results of this study reveal a feasible pathway to design polymer dielectrics with the potential for use in capacitive applications in harsh environments.
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Affiliation(s)
- Xiaona Li
- State Key Laboratory of Powder Metallurgy, Central South University, Changsha 410083, Hunan Province, P. R. China
| | - Hang Luo
- State Key Laboratory of Powder Metallurgy, Central South University, Changsha 410083, Hunan Province, P. R. China
| | - Chenchen Yang
- State Key Laboratory of Powder Metallurgy, Central South University, Changsha 410083, Hunan Province, P. R. China
| | - Fan Wang
- State Key Laboratory of Powder Metallurgy, Central South University, Changsha 410083, Hunan Province, P. R. China
| | - Xun Jiang
- State Key Laboratory of Powder Metallurgy, Central South University, Changsha 410083, Hunan Province, P. R. China
| | - Ru Guo
- State Key Laboratory of Powder Metallurgy, Central South University, Changsha 410083, Hunan Province, P. R. China
| | - Dou Zhang
- State Key Laboratory of Powder Metallurgy, Central South University, Changsha 410083, Hunan Province, P. R. China
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28
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Yang M, Zhou L, Li X, Ren W, Shen Y. Polyimides Physically Crosslinked by Aromatic Molecules Exhibit Ultrahigh Energy Density at 200 °C. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2023; 35:e2302392. [PMID: 37196180 DOI: 10.1002/adma.202302392] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/14/2023] [Revised: 04/23/2023] [Indexed: 05/19/2023]
Abstract
Polymer dielectrics possess significant advantages in electrostatic energy storage applications, such as high breakdown strength (Eb ) and efficiency (η), while their discharged energy density (Ud ) at high temperature is limited by the decrease in Eb and η. Several strategies including introducing inorganic components and crosslinking have been investigated to improve the Ud of polymer dielectrics, but new issues will be encountered, e.g., the sacrifice of flexibility, the degradation of the interfacial insulating property and the complex preparation process. In this work, 3D rigid aromatic molecules are introduced into aromatic polyimides to form physical crosslinking networks through electrostatic interactions between their oppositely charged phenyl groups. The dense physical crosslinking networks strengthen the polyimides to boost the Eb , and the aromatic molecules trap the charge carriers to suppress the loss, allowing the strategy to combine the advantages of inorganic incorporation and crosslinking. This study demonstrates that this strategy is well applicable to a number of representative aromatic polyimides, and ultrahigh Ud of 8.05 J cm-3 (150 °C) and 5.12 J cm-3 (200 °C) is achieved. Furthermore, the all-organic composites exhibit stable performances during ultralong 105 charge-discharge cycles in harsh environments (500 MV m-1 and 200 °C) and prospects for large-scale preparation.
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Affiliation(s)
- Minzheng Yang
- School of Materials Science and Engineering, State Key Lab of New Ceramics and Fine Processing, Tsinghua University, Beijing, 100084, China
| | - Le Zhou
- School of Materials Science and Engineering, State Key Lab of New Ceramics and Fine Processing, Tsinghua University, Beijing, 100084, China
| | - Xin Li
- School of Materials Science and Engineering, State Key Lab of New Ceramics and Fine Processing, Tsinghua University, Beijing, 100084, China
| | - Weibin Ren
- School of Materials Science and Engineering, State Key Lab of New Ceramics and Fine Processing, Tsinghua University, Beijing, 100084, China
| | - Yang Shen
- School of Materials Science and Engineering, State Key Lab of New Ceramics and Fine Processing, Tsinghua University, Beijing, 100084, China
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29
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Bao Z, Ding S, Dai Z, Wang Y, Jia J, Shen S, Yin Y, Li X. Significantly enhanced high-temperature capacitive energy storage in cyclic olefin copolymer dielectric films via ultraviolet irradiation. MATERIALS HORIZONS 2023; 10:2120-2127. [PMID: 36946201 DOI: 10.1039/d3mh00078h] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Polymer dielectrics with high operation temperature (∼150 °C) and excellent capacitive energy storage performance are vital for electric power systems and advanced electronic devices. Here, a very convenient and competitive strategy by preparing ultraviolet-irradiated cyclic olefin copolymer films is demonstrated to be effective in improving the energy storage performance at high temperatures. Compared with the unirradiated film, irradiated films exhibit a higher dielectric constant, higher breakdown strength and stronger mechanical properties as a result of the emergence of the carbonyl group and cross-linking network. Consequently, with a high efficiency above 95%, a superior discharged energy density of ∼3.34 J cm-3 is achieved at 150 °C, surpassing the current dielectric polymers and polymer nanocomposites. In particular, the energy storage performance remains highly reliable over 20 000 cycles under actual operating conditions (200 MV m-1 at 150 °C) in hybrid electric vehicles. This research offers a valuable pathway to build high-energy-density polymer-based capacitor devices working under harsh environments.
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Affiliation(s)
- Zhiwei Bao
- Hefei National Research Center for Physical Sciences at the Microscale, Department of Physics, and CAS Key Laboratory of Strongly-coupled Quantum Matter Physics, University of Science and Technology of China, Hefei 230026, China.
| | - Song Ding
- Hefei National Research Center for Physical Sciences at the Microscale, Department of Physics, and CAS Key Laboratory of Strongly-coupled Quantum Matter Physics, University of Science and Technology of China, Hefei 230026, China.
| | - Zhizhan Dai
- Hefei National Research Center for Physical Sciences at the Microscale, Department of Physics, and CAS Key Laboratory of Strongly-coupled Quantum Matter Physics, University of Science and Technology of China, Hefei 230026, China.
| | - Yiwei Wang
- Hefei National Research Center for Physical Sciences at the Microscale, Department of Physics, and CAS Key Laboratory of Strongly-coupled Quantum Matter Physics, University of Science and Technology of China, Hefei 230026, China.
| | - Jiangheng Jia
- Hefei National Research Center for Physical Sciences at the Microscale, Department of Physics, and CAS Key Laboratory of Strongly-coupled Quantum Matter Physics, University of Science and Technology of China, Hefei 230026, China.
| | - Shengchun Shen
- Hefei National Research Center for Physical Sciences at the Microscale, Department of Physics, and CAS Key Laboratory of Strongly-coupled Quantum Matter Physics, University of Science and Technology of China, Hefei 230026, China.
| | - Yuewei Yin
- Hefei National Research Center for Physical Sciences at the Microscale, Department of Physics, and CAS Key Laboratory of Strongly-coupled Quantum Matter Physics, University of Science and Technology of China, Hefei 230026, China.
| | - Xiaoguang Li
- Hefei National Research Center for Physical Sciences at the Microscale, Department of Physics, and CAS Key Laboratory of Strongly-coupled Quantum Matter Physics, University of Science and Technology of China, Hefei 230026, China.
- Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing 210093, China
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30
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Song J, Qin H, Qin S, Liu M, Zhang S, Chen J, Zhang Y, Wang S, Li Q, Dong L, Xiong C. Alicyclic polyimides with large band gaps exhibit superior high-temperature capacitive energy storage. MATERIALS HORIZONS 2023; 10:2139-2148. [PMID: 36947003 DOI: 10.1039/d2mh01511k] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Flexible polymer dielectrics for capacitive energy storage that can function well at elevated temperatures are increasingly in demand for continuously advancing and miniaturizing electrical devices. However, traditional high-resistance polymer dielectrics composed of aromatic backbones have a compromised band gap (Eg) and hence suffer from low breakdown strength and a huge loss at high temperatures. Here, based on the density functional theory (DFT) calculations, rigid and non-coplanar alicyclic segments are introduced into the polyimide backbone to overcome the incompatibility of a high glass transition temperature (Tg) and large Eg. Thanks to the large optical Eg (∼4.6 eV) and high Tg (∼277 °C), the all-alicyclic polyimide at 200 °C delivers a maximum discharge energy density (Ue) of 5.01 J cm-3 with a charge-discharge efficiency (η) of 78.1% at 600 MV m-1, and a record Ue of 2.55 J cm-3 at η = 90%, which is 10-fold larger than that of the state-of-art commercial polyetherimides (PEIs). In addition, compared with aromatic polyimides, the all-alicyclic polyimide possesses a better self-clearing characteristic due to a smaller ratio of carbon to hydrogen and oxygen, which facilitates its long-term reliability in practical applications.
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Affiliation(s)
- Jinhui Song
- School of Materials Science and Engineering, Wuhan University of Technology, Wuhan, 430070, China.
| | - Hongmei Qin
- School of Materials Science and Engineering, Wuhan University of Technology, Wuhan, 430070, China.
| | - Shiyu Qin
- School of Materials Science and Engineering, Wuhan University of Technology, Wuhan, 430070, China.
| | - Man Liu
- School of Materials Science and Engineering, Wuhan University of Technology, Wuhan, 430070, China.
| | - Shixian Zhang
- School of Materials Science and Engineering, Wuhan University of Technology, Wuhan, 430070, China.
| | - Junyu Chen
- School of Materials Science and Engineering, Wuhan University of Technology, Wuhan, 430070, China.
| | - Yang Zhang
- School of Materials Science and Engineering, Wuhan University of Technology, Wuhan, 430070, China.
| | - Shan Wang
- School of Materials Science and Engineering, Wuhan University of Technology, Wuhan, 430070, China.
| | - Qi Li
- State Key Laboratory of Power System, Department of Electrical Engineering, Tsinghua University, Beijing 100084, China.
| | - Lijie Dong
- School of Materials Science and Engineering, Wuhan University of Technology, Wuhan, 430070, China.
| | - Chuanxi Xiong
- School of Materials Science and Engineering, Wuhan University of Technology, Wuhan, 430070, China.
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31
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Zheng X, Yin Y, Wang P, Sun C, Yang Q, Shi Z, Xiong C. High-performance dielectric film capacitors based on cellulose/Al 2O 3 nanosheets/PVDF composites. Int J Biol Macromol 2023; 243:125220. [PMID: 37285894 DOI: 10.1016/j.ijbiomac.2023.125220] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2023] [Revised: 05/25/2023] [Accepted: 06/02/2023] [Indexed: 06/09/2023]
Abstract
The design and preparation of novel renewable biomass-based dielectric composites have drawn great attention recently. Here, cellulose was dissolved in NaOH/urea aqueous solution, and Al2O3 nanosheets (AONS) synthesized by hydrothermal method were used as fillers. Then the regenerated cellulose (RC)-AONS dielectric composite films were prepared by regeneration, washing and drying. The two-dimensional AONS had a better effect on improving the dielectric constant and breakdown strength of the composites, so that the RC-AONS composite film with 5 wt% AONS content reached an energy density of 6.2 J/cm3 at 420 MV/m. Furthermore, in order to improve the dielectric energy storage properties of cellulose films in high humidity environment, the hydrophobic polyvinylidene fluoride (PVDF) was innovatively introduced to construct RC-AONS-PVDF composite films. The energy storage density of the prepared ternary composite films could reach 8.32 J/cm3 at 400 MV/m, which was 416 % improvement against that of the commercially biaxially oriented polypropylene (2 J/cm3), and could be cycled for >10,000 times under 200 MV/m. Concurrently, the water absorption of the composite film in humidity was effectively reduced. This work broadens the application prospect of biomass-based materials in the field of film dielectric capacitor.
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Affiliation(s)
- Xin Zheng
- School of Materials Science and Engineering, Wuhan University of Technology, Wuhan 430070, China
| | - Yanan Yin
- School of Materials Science and Engineering, Wuhan University of Technology, Wuhan 430070, China
| | - Peng Wang
- School of Materials Science and Engineering, Wuhan University of Technology, Wuhan 430070, China
| | - Chenyu Sun
- School of Materials Science and Engineering, Wuhan University of Technology, Wuhan 430070, China
| | - Quanling Yang
- School of Materials Science and Engineering, Wuhan University of Technology, Wuhan 430070, China.
| | - Zhuqun Shi
- School of Chemistry, Chemical Engineering and Life Sciences, Wuhan University of Technology, Wuhan 430070, China.
| | - Chuanxi Xiong
- School of Materials Science and Engineering, Wuhan University of Technology, Wuhan 430070, China
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32
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Wang Y, Zhou J, Konstantinou AC, Baferani MA, Davis-Amendola K, Gao W, Cao Y. Sandwiched Polymer Nanocomposites Reinforced by Two-Dimensional Interface Nanocoating for Ultrahigh Energy Storage Performance at Elevated Temperatures. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2023; 19:e2208105. [PMID: 36897001 DOI: 10.1002/smll.202208105] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/23/2022] [Revised: 02/22/2023] [Indexed: 06/15/2023]
Abstract
Polymer-based dielectrics are essential components in electrical and power electronic systems for high power density storage and conversion. A mounting challenge for polymer dielectrics is how to maintain their electrical insulation at not only high electric fields but also elevated temperatures, in order to meet the growing needs for renewable energies and grand electrifications. Here, a sandwiched barium titanate/polyamideimide nanocomposite with reinforced interfaces via two-dimensional nanocoatings is presented. It is demonstrated that boron nitride and montmorillonite nanocoatings can block and dissipate injected charges, respectively, to present a synergetic effect on the suppression of conduction loss and the enhancement of breakdown strength. Ultrahigh energy densities of 2.6, 1.8, and 1.0 J cm-3 are obtained at 150 °C, 200 °C, and 250 °C, respectively, with a charge-discharge efficiency >90%, far outperforming the state-of-the-art high-temperature polymer dielectrics. Cyclic charge-discharge tests up to 10 000 times verify the excellent lifetime of the interface-reinforced sandwiched polymer nanocomposite. This work provides a new pathway to design high-performance polymer dielectrics for high-temperature energy storage via interfacial engineering.
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Affiliation(s)
- Yifei Wang
- Electrical Insulation Research Center, Institute of Materials Science, University of Connecticut, 97 N Eagleville Rd, Storrs, CT, 06269, USA
| | - Jierui Zhou
- Electrical Insulation Research Center, Institute of Materials Science, University of Connecticut, 97 N Eagleville Rd, Storrs, CT, 06269, USA
- Department of Electrical and Computer Engineering, University of Connecticut, 371 Fairfield Way, Storrs, CT, 06269, USA
| | - Antigoni C Konstantinou
- Electrical Insulation Research Center, Institute of Materials Science, University of Connecticut, 97 N Eagleville Rd, Storrs, CT, 06269, USA
| | - Mohamadreza Arab Baferani
- Electrical Insulation Research Center, Institute of Materials Science, University of Connecticut, 97 N Eagleville Rd, Storrs, CT, 06269, USA
- Department of Electrical and Computer Engineering, University of Connecticut, 371 Fairfield Way, Storrs, CT, 06269, USA
| | - Kerry Davis-Amendola
- Electrical Insulation Research Center, Institute of Materials Science, University of Connecticut, 97 N Eagleville Rd, Storrs, CT, 06269, USA
- Department of Material Science and Engineering, University of Connecticut, 97 N Eagleville Rd, Storrs, CT, 06269, USA
| | - Wenqiang Gao
- Electrical Insulation Research Center, Institute of Materials Science, University of Connecticut, 97 N Eagleville Rd, Storrs, CT, 06269, USA
- Department of Electrical and Computer Engineering, University of Connecticut, 371 Fairfield Way, Storrs, CT, 06269, USA
| | - Yang Cao
- Electrical Insulation Research Center, Institute of Materials Science, University of Connecticut, 97 N Eagleville Rd, Storrs, CT, 06269, USA
- Department of Electrical and Computer Engineering, University of Connecticut, 371 Fairfield Way, Storrs, CT, 06269, USA
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33
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Dong J, Li L, Qiu P, Pan Y, Niu Y, Sun L, Pan Z, Liu Y, Tan L, Xu X, Xu C, Luo G, Wang Q, Wang H. Scalable Polyimide-Organosilicate Hybrid Films for High-Temperature Capacitive Energy Storage. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2023; 35:e2211487. [PMID: 36894169 DOI: 10.1002/adma.202211487] [Citation(s) in RCA: 15] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/08/2022] [Revised: 02/13/2023] [Indexed: 05/19/2023]
Abstract
High-temperature polymer dielectrics have broad application prospects in next-generation microelectronics and electrical power systems. However, the capacitive energy densities of dielectric polymers at elevated temperatures are severely limited by carrier excitation and transport. Herein, a molecular engineering strategy is presented to regulate the bulk-limited conduction in the polymer by bonding amino polyhedral oligomeric silsesquioxane (NH2 -POSS) with the chain ends of polyimide (PI). Experimental studies and density functional theory (DFT) calculations demonstrate that the terminal group NH2 -POSS with a wide-bandgap of Eg ≈ 6.6 eV increases the band energy levels of the PI and induces the formation of local deep traps in the hybrid films, which significantly restrains carrier transport. At 200 °C, the hybrid film exhibits concurrently an ultrahigh discharged energy density of 3.45 J cm-3 and a high gravimetric energy density of 2.74 J g-1 , with the charge-discharge efficiency >90%, far exceeding those achieved in the dielectric polymers and nearly all other polymer nanocomposites. Moreover, the NH2 -POSS terminated PI film exhibits excellent charge-discharge cyclability (>50000) and power density (0.39 MW cm-3 ) at 200 °C, making it a promising candidate for high-temperature high-energy-density capacitors. This work represents a novel strategy to scalable polymer dielectrics with superior capacitive performance operating in harsh environments.
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Affiliation(s)
- Jiufeng Dong
- Department of Materials Science and Engineering, Southern University of Science and Technology, Shenzhen, Guangdong, 518055, China
- Shenzhen Engineering Research Center for Novel Electronic Information Materials and Devices & Guangdong Provincial Key Laboratory of Functional Oxide Materials and Devices, Southern University of Science and Technology, Shenzhen, Guangdong, 518055, China
| | - Li Li
- Department of Materials Science and Engineering, Southern University of Science and Technology, Shenzhen, Guangdong, 518055, China
- Shenzhen Engineering Research Center for Novel Electronic Information Materials and Devices & Guangdong Provincial Key Laboratory of Functional Oxide Materials and Devices, Southern University of Science and Technology, Shenzhen, Guangdong, 518055, China
| | - Peiqi Qiu
- Department of Materials Science and Engineering, Southern University of Science and Technology, Shenzhen, Guangdong, 518055, China
- Guangdong Provincial Key Laboratory of Computational Science and Material Design, Southern University of Science and Technology, Shenzhen, Guangdong, 518055, China
| | - Yupeng Pan
- Shenzhen Grubbs Institute and Department of Chemistry, Southern University of Science and Technology, Shenzhen, Guangdong, 518055, China
| | - Yujuan Niu
- Department of Materials Science and Engineering, Southern University of Science and Technology, Shenzhen, Guangdong, 518055, China
- Shenzhen Engineering Research Center for Novel Electronic Information Materials and Devices & Guangdong Provincial Key Laboratory of Functional Oxide Materials and Devices, Southern University of Science and Technology, Shenzhen, Guangdong, 518055, China
| | - Liang Sun
- Department of Materials Science and Engineering, Southern University of Science and Technology, Shenzhen, Guangdong, 518055, China
- Shenzhen Engineering Research Center for Novel Electronic Information Materials and Devices & Guangdong Provincial Key Laboratory of Functional Oxide Materials and Devices, Southern University of Science and Technology, Shenzhen, Guangdong, 518055, China
| | - Zizhao Pan
- Department of Materials Science and Engineering, Southern University of Science and Technology, Shenzhen, Guangdong, 518055, China
- Shenzhen Engineering Research Center for Novel Electronic Information Materials and Devices & Guangdong Provincial Key Laboratory of Functional Oxide Materials and Devices, Southern University of Science and Technology, Shenzhen, Guangdong, 518055, China
| | - Yuqi Liu
- Department of Materials Science and Engineering, Southern University of Science and Technology, Shenzhen, Guangdong, 518055, China
- Shenzhen Engineering Research Center for Novel Electronic Information Materials and Devices & Guangdong Provincial Key Laboratory of Functional Oxide Materials and Devices, Southern University of Science and Technology, Shenzhen, Guangdong, 518055, China
| | - Li Tan
- Department of Materials Science and Engineering, Southern University of Science and Technology, Shenzhen, Guangdong, 518055, China
- Shenzhen Engineering Research Center for Novel Electronic Information Materials and Devices & Guangdong Provincial Key Laboratory of Functional Oxide Materials and Devices, Southern University of Science and Technology, Shenzhen, Guangdong, 518055, China
| | - Xinwei Xu
- Department of Materials Science and Engineering, Southern University of Science and Technology, Shenzhen, Guangdong, 518055, China
- Shenzhen Engineering Research Center for Novel Electronic Information Materials and Devices & Guangdong Provincial Key Laboratory of Functional Oxide Materials and Devices, Southern University of Science and Technology, Shenzhen, Guangdong, 518055, China
| | - Chen Xu
- Shenzhen Grubbs Institute and Department of Chemistry, Southern University of Science and Technology, Shenzhen, Guangdong, 518055, China
| | - Guangfu Luo
- Department of Materials Science and Engineering, Southern University of Science and Technology, Shenzhen, Guangdong, 518055, China
- Guangdong Provincial Key Laboratory of Computational Science and Material Design, Southern University of Science and Technology, Shenzhen, Guangdong, 518055, China
| | - Qing Wang
- Department of Materials Science and Engineering, The Pennsylvania State University, University Park, PA, 16802, USA
| | - Hong Wang
- Department of Materials Science and Engineering, Southern University of Science and Technology, Shenzhen, Guangdong, 518055, China
- Shenzhen Engineering Research Center for Novel Electronic Information Materials and Devices & Guangdong Provincial Key Laboratory of Functional Oxide Materials and Devices, Southern University of Science and Technology, Shenzhen, Guangdong, 518055, China
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34
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Wang R, Zhu Y, Fu J, Yang M, Ran Z, Li J, Li M, Hu J, He J, Li Q. Designing tailored combinations of structural units in polymer dielectrics for high-temperature capacitive energy storage. Nat Commun 2023; 14:2406. [PMID: 37100776 PMCID: PMC10133333 DOI: 10.1038/s41467-023-38145-w] [Citation(s) in RCA: 13] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2022] [Accepted: 04/18/2023] [Indexed: 04/28/2023] Open
Abstract
Many mainstream dielectric energy storage technologies in the emergent applications, such as renewable energy, electrified transportations and advanced propulsion systems, are usually required to operate under harsh-temperature conditions. However, excellent capacitive performance and thermal stability tend to be mutually exclusive in the current polymer dielectric materials and applications. Here, we report a strategy to tailor structural units for the design of high-temperature polymer dielectrics. A library of polyimide-derived polymers from diverse combinations of structural units are predicted, and 12 representative polymers are synthesized for direct experimental investigation. This study provides important insights into decisive structural factors necessary to achieve robust and stable dielectrics with high energy storage capabilities at elevated temperature. We also find that the high-temperature insulation performance would experience diminishing marginal utility as the bandgap increases beyond a critical point, which is strongly correlated to the dihedral angle between neighboring planes of conjugation in these polymers. By experimentally testing the optimized and predicted structures, an increased energy storage at temperatures up to 250 °C is observed. We discuss the possibility for this strategy to be generally applied to other polymer dielectrics to achieve further performance enhancement.
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Affiliation(s)
- Rui Wang
- State Key Laboratory of Power Systems, Department of Electrical Engineering, Tsinghua University, Beijing, 100084, China
| | - Yujie Zhu
- State Key Laboratory of Power Systems, Department of Electrical Engineering, Tsinghua University, Beijing, 100084, China
| | - Jing Fu
- State Key Laboratory of Power Systems, Department of Electrical Engineering, Tsinghua University, Beijing, 100084, China
| | - Mingcong Yang
- State Key Laboratory of Power Systems, Department of Electrical Engineering, Tsinghua University, Beijing, 100084, China
| | - Zhaoyu Ran
- State Key Laboratory of Power Systems, Department of Electrical Engineering, Tsinghua University, Beijing, 100084, China
| | - Junluo Li
- State Key Laboratory of Power Systems, Department of Electrical Engineering, Tsinghua University, Beijing, 100084, China
| | - Manxi Li
- State Key Laboratory of Power Systems, Department of Electrical Engineering, Tsinghua University, Beijing, 100084, China
| | - Jun Hu
- State Key Laboratory of Power Systems, Department of Electrical Engineering, Tsinghua University, Beijing, 100084, China
| | - Jinliang He
- State Key Laboratory of Power Systems, Department of Electrical Engineering, Tsinghua University, Beijing, 100084, China
| | - Qi Li
- State Key Laboratory of Power Systems, Department of Electrical Engineering, Tsinghua University, Beijing, 100084, China.
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35
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Wang F, Cai J, Yang C, Luo H, Li X, Hou H, Zou G, Zhang D. Improved Capacitive Energy Storage Nanocomposites at High Temperature Utilizing Ultralow Loading of Bimetallic MOF. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2023:e2300510. [PMID: 36929673 DOI: 10.1002/smll.202300510] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/17/2023] [Revised: 02/22/2023] [Indexed: 06/18/2023]
Abstract
It is urgent to develop high-temperature dielectrics with high energy density and high energy efficiency for next-generation capacitor demands. Metal-organic frameworks (MOFs) have been widely used due to their structural diversity and functionally adaptable properties. Doping of metal nodes in MOFs is an effective strategy to change the band gap and band edge positions of the original MOFs, which helps to improve their ability to bind charges as traps. In this work, the incorporation of ultralow loading (<1.5 wt%) of novel bimetallic MOFs (ZIF 8-67) into the polyetherimide (PEI) polymer matrix is exhibited. With the addition of ZIF 8-67, the breakdown strength and energy storage capacity of ZIF 8-67/PEI nanocomposites are significantly improved, especially at high temperatures (200 °C). For example, the energy densitiy of the 0.5 wt% ZIF 8-67/PEI nanocomposite is up to 2.96 J cm-3 , with an efficiency (η) > 90% at 150 °C. At 200 °C, the discharge energy density of 0.25 wt% ZIF 8-67/PEI nanocomposites can still reach 1.84 J cm-3 with a η > 90%, which is nine times higher than that of pure PEI (0.21 J cm-3 ) under the same conditions, and it is the largest improvement compared with the previous reports.
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Affiliation(s)
- Fan Wang
- State Key Laboratory of Powder Metallurgy, Central South University, Changsha, 410083, P. R. China
| | - Jieming Cai
- College of Chemistry and Chemical Engineering, Central South University, Changsha, 410083, P. R. China
| | - Chenchen Yang
- State Key Laboratory of Powder Metallurgy, Central South University, Changsha, 410083, P. R. China
| | - Hang Luo
- State Key Laboratory of Powder Metallurgy, Central South University, Changsha, 410083, P. R. China
| | - Xiaona Li
- State Key Laboratory of Powder Metallurgy, Central South University, Changsha, 410083, P. R. China
| | - Hongshuai Hou
- State Key Laboratory of Powder Metallurgy, Central South University, Changsha, 410083, P. R. China
| | - Guoqiang Zou
- College of Chemistry and Chemical Engineering, Central South University, Changsha, 410083, P. R. China
| | - Dou Zhang
- State Key Laboratory of Powder Metallurgy, Central South University, Changsha, 410083, P. R. China
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36
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Le Goupil F, Salvado V, Rothan V, Vidil T, Fleury G, Cramail H, Grau E. Bio-Based Poly(hydroxy urethane)s for Efficient Organic High-Power Energy Storage. J Am Chem Soc 2023; 145:4583-4588. [PMID: 36800319 DOI: 10.1021/jacs.2c12090] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/18/2023]
Abstract
Fast, low-cost, and efficient energy storage technologies are urgently needed to balance the intermittence of sustainable energy sources. High-power capacitors using organic polymers offer a green and scalable answer. They require dielectrics with high permittivity (εr) and breakdown strength (EB), which bio-based poly(hydroxy urethane)s (PHUs) can provide. PHUs combine high concentrations of hydroxyl and carbamate groups, thus enhancing their εr, and a highly tunable glass transition (Tg), which dictates the regions of low dielectric losses. By reacting erythritol dicarbonate with bio-based diamines, fully bio-based PHUs were synthesized with Tg ∼ 50 °C, εr > 8, EB > 400 MV·m-1, and low losses (tan δ < 0.03). This results in energy storage performance comparable with the flagship petrochemical materials (discharge energy density, Ue > 6 J·cm-3) combined with a remarkably high discharge efficiency, with η = 85% at EB and up to 91% at 0.5 EB. These bio-based PHUs thus represent a highly promising route to green and sustainable energy storage.
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Affiliation(s)
- Florian Le Goupil
- Laboratoire de Chimie des Polymères Organiques (LCPO UMR 5629), Université de Bordeaux, CNRS, 16 Avenue Pey-Berland, Bordeaux INP, 33607 Pessac Cedex, France
| | - Victor Salvado
- Laboratoire de Chimie des Polymères Organiques (LCPO UMR 5629), Université de Bordeaux, CNRS, 16 Avenue Pey-Berland, Bordeaux INP, 33607 Pessac Cedex, France
| | - Valère Rothan
- Laboratoire de Chimie des Polymères Organiques (LCPO UMR 5629), Université de Bordeaux, CNRS, 16 Avenue Pey-Berland, Bordeaux INP, 33607 Pessac Cedex, France
| | - Thomas Vidil
- Laboratoire de Chimie des Polymères Organiques (LCPO UMR 5629), Université de Bordeaux, CNRS, 16 Avenue Pey-Berland, Bordeaux INP, 33607 Pessac Cedex, France
| | - Guillaume Fleury
- Laboratoire de Chimie des Polymères Organiques (LCPO UMR 5629), Université de Bordeaux, CNRS, 16 Avenue Pey-Berland, Bordeaux INP, 33607 Pessac Cedex, France
| | - Henri Cramail
- Laboratoire de Chimie des Polymères Organiques (LCPO UMR 5629), Université de Bordeaux, CNRS, 16 Avenue Pey-Berland, Bordeaux INP, 33607 Pessac Cedex, France
| | - Etienne Grau
- Laboratoire de Chimie des Polymères Organiques (LCPO UMR 5629), Université de Bordeaux, CNRS, 16 Avenue Pey-Berland, Bordeaux INP, 33607 Pessac Cedex, France
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37
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Zhou C, Xu W, Zhang Y, Yu C, Liu X, Jiang Z, Zhang C, Shang Y, Zhang H. Hydrogen Bonding of Aramid Boosts High-Temperature Capacitive Properties of Polyetherimide Blends. ACS APPLIED MATERIALS & INTERFACES 2023; 15:8471-8479. [PMID: 36725214 DOI: 10.1021/acsami.2c20558] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
Polyetherimide (PEI) is the state-of-the-art commercial high-temperature polymer dielectric with excellent thermal and chemical stability and relatively high high-temperature capacitive energy storage properties. The rotation of the dipoles in the PEI chains brings the β-relaxation which seriously increases the leakage current and decreases the charge-discharge efficiency. In this work, hydrogen bonds have been introduced to limit the dipole rotation of PEI by blending aramids [1,4-poly(ether fluoromethyl naphthalene amide), PNFA] into the PEI matrix. By introducing 10 wt % PNFA, the β-relaxation of the blend has been significantly reduced which could be observed from the dielectric spectrum. To explore the mechanism of limited β-relaxation, we analyze the hydrogen bonds in the blend films by infrared spectroscopy and found that the maximum content of hydrogen-bonded carbonyl formed between PNFA and PEI chains was 14.3% when the content of PNFA was 30 wt %. The content of hydrogen bonds formed between PNFA and PEI was positively correlated with the energy storage performance of the blends. The maximum discharged energy density with an efficiency above 90% of the blend film with 30 wt % PNFA reaches 4.1 J cm-3 at 150 °C, which is about 350% higher than that of pristine PEI. This work shows that composing hydrogen bonds by the blending method could be a viable strategy for enhancing the high-temperature energy storage performance of polymer dielectrics, which could be achieved by large-scale preparation and has feasible industrial production prospects.
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Affiliation(s)
- Chenyi Zhou
- National and Local Joint Engineering Laboratory for Synthetic Technology of High-Performance Polymer, Jilin University, Changchun, Jilin130012, China
| | - Wenhan Xu
- National and Local Joint Engineering Laboratory for Synthetic Technology of High-Performance Polymer, Jilin University, Changchun, Jilin130012, China
| | - Yunhe Zhang
- National and Local Joint Engineering Laboratory for Synthetic Technology of High-Performance Polymer, Jilin University, Changchun, Jilin130012, China
| | - Chang Yu
- National and Local Joint Engineering Laboratory for Synthetic Technology of High-Performance Polymer, Jilin University, Changchun, Jilin130012, China
| | - Xin Liu
- National and Local Joint Engineering Laboratory for Synthetic Technology of High-Performance Polymer, Jilin University, Changchun, Jilin130012, China
| | - Zilong Jiang
- National and Local Joint Engineering Laboratory for Synthetic Technology of High-Performance Polymer, Jilin University, Changchun, Jilin130012, China
| | - Chunling Zhang
- College of Materials Science and Engineering, Jilin University, Changchun, Jilin130012, China
| | - Yingshuang Shang
- National and Local Joint Engineering Laboratory for Synthetic Technology of High-Performance Polymer, Jilin University, Changchun, Jilin130012, China
| | - Haibo Zhang
- National and Local Joint Engineering Laboratory for Synthetic Technology of High-Performance Polymer, Jilin University, Changchun, Jilin130012, China
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38
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Li H, Chang BS, Kim H, Xie Z, Lainé A, Ma L, Xu T, Yang C, Kwon J, Shelton SW, Klivansky LM, Altoé V, Gao B, Schwartzberg AM, Peng Z, Ritchie RO, Xu T, Salmeron M, Ruiz R, Sharpless KB, Wu P, Liu Y. High-performing polysulfate dielectrics for electrostatic energy storage under harsh conditions. JOULE 2023; 7:95-111. [PMID: 37034575 PMCID: PMC10078921 DOI: 10.1016/j.joule.2022.12.010] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
High capacity polymer dielectrics that operate with high efficiencies under harsh electrification conditions are essential components for advanced electronics and power systems. It is, however, fundamentally challenging to design polymer dielectrics that can reliably withstand demanding temperatures and electric fields, which necessitate the balance of key electronic, electrical and thermal parameters. Herein, we demonstrate that polysulfates, synthesized by sulfur(VI) fluoride exchange (SuFEx) catalysis, another near-perfect click chemistry reaction, serve as high-performing dielectric polymers that overcome such bottlenecks. Free-standing polysulfate thin films from convenient solution processes exhibit superior insulating properties and dielectric stability at elevated temperatures, which are further enhanced when ultrathin (~5 nm) oxide coatings are deposited by atomic layer deposition. The corresponding electrostatic film capacitors display high breakdown strength (>700 MV m-1) and discharged energy density of 8.64 J cm-3 at 150 °C, outperforming state-of-the-art free-standing capacitor films based on commercial and synthetic dielectric polymers and nanocomposites.
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Affiliation(s)
- He Li
- Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA
- The Molecular Foundry, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA
- These authors contributed equally
| | - Boyce S. Chang
- The Molecular Foundry, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA
- These authors contributed equally
- Present address: Department of Materials Science and Engineering, Iowa State University, Ames, IA 50010, USA
| | - Hyunseok Kim
- Department of Chemistry and The Skaggs Institute for Chemical Biology, The Scripps Research Institute, La Jolla, CA 92037, USA
| | - Zongliang Xie
- State Key Laboratory of Electrical Insulation and Power Equipment, School of Electrical Engineering, Xi’an Jiaotong University, Xi’an, Shaanxi 710049, China
| | - Antione Lainé
- Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA
| | - Le Ma
- Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA
- Department of Materials Science and Engineering, University of California, Berkeley, Berkeley, CA 94720, USA
| | - Tianlei Xu
- State Key Laboratory of Electrical Insulation and Power Equipment, School of Electrical Engineering, Xi’an Jiaotong University, Xi’an, Shaanxi 710049, China
| | - Chongqing Yang
- The Molecular Foundry, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA
| | - Junpyo Kwon
- Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA
- Department of Mechanical Engineering, University of California, Berkeley, Berkeley, CA 94720, USA
| | - Steve W. Shelton
- The Molecular Foundry, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA
| | - Liana M. Klivansky
- The Molecular Foundry, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA
| | - Virginia Altoé
- The Molecular Foundry, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA
| | - Bing Gao
- Department of Chemistry and The Skaggs Institute for Chemical Biology, The Scripps Research Institute, La Jolla, CA 92037, USA
| | - Adam M. Schwartzberg
- The Molecular Foundry, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA
| | - Zongren Peng
- State Key Laboratory of Electrical Insulation and Power Equipment, School of Electrical Engineering, Xi’an Jiaotong University, Xi’an, Shaanxi 710049, China
| | - Robert O. Ritchie
- Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA
- Department of Materials Science and Engineering, University of California, Berkeley, Berkeley, CA 94720, USA
- Department of Mechanical Engineering, University of California, Berkeley, Berkeley, CA 94720, USA
| | - Ting Xu
- Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA
- Department of Materials Science and Engineering, University of California, Berkeley, Berkeley, CA 94720, USA
- Department of Chemistry, University of California, Berkeley, Berkeley, CA 94720, USA
| | - Miquel Salmeron
- Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA
- Department of Materials Science and Engineering, University of California, Berkeley, Berkeley, CA 94720, USA
| | - Ricardo Ruiz
- The Molecular Foundry, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA
| | - K. Barry Sharpless
- Department of Chemistry and The Skaggs Institute for Chemical Biology, The Scripps Research Institute, La Jolla, CA 92037, USA
| | - Peng Wu
- Department of Molecular Medicine, The Scripps Research Institute, La Jolla, CA 92037, USA
| | - Yi Liu
- Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA
- The Molecular Foundry, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA
- Lead contact
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Pei JY, Yin LJ, Zhong SL, Dang ZM. Suppressing the Loss of Polymer-Based Dielectrics for High Power Energy Storage. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2023; 35:e2203623. [PMID: 35924412 DOI: 10.1002/adma.202203623] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/22/2022] [Revised: 07/31/2022] [Indexed: 06/17/2023]
Abstract
Polymer-based dielectrics have received intensive interest from academic community in the field of high-power energy storage owing to their superior flexibility and fast charge-discharge ability. Recently, how to suppress the loss of polymer-based dielectrics has been increasingly recognized as a critical point to attain a high charge-discharge efficiency in the film capacitors. Some achievements are made in analyzing the source of loss and suppressing loss via Edison's trial and error method. In this review, the significance of suppressing loss in polymer-based dielectrics is firstly emphasized. Then, different sources of loss are discussed carefully and an in-depth analysis of the related measurements is presented. Next, recent research results in suppressing loss are summarized and discussed in detail according to different strategies. Finally, the challenges and opportunities in the loss suppression research for the rational design of high-efficiency polymer-based dielectrics are proposed.
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Affiliation(s)
- Jia-Yao Pei
- State Key Laboratory of Power System, Department of Electrical Engineering, Tsinghua University, Beijing, 100084, P. R. China
| | - Li-Juan Yin
- State Key Laboratory of Power System, Department of Electrical Engineering, Tsinghua University, Beijing, 100084, P. R. China
| | - Shao-Long Zhong
- State Key Laboratory of Power System, Department of Electrical Engineering, Tsinghua University, Beijing, 100084, P. R. China
| | - Zhi-Min Dang
- State Key Laboratory of Power System, Department of Electrical Engineering, Tsinghua University, Beijing, 100084, P. R. China
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40
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Pan Z, Li L, Wang L, Luo G, Xu X, Jin F, Dong J, Niu Y, Sun L, Guo C, Zhang W, Wang Q, Wang H. Tailoring Poly(Styrene-co-maleic anhydride) Networks for All-Polymer Dielectrics Exhibiting Ultrahigh Energy Density and Charge-Discharge Efficiency at Elevated Temperatures. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2023; 35:e2207580. [PMID: 36333878 DOI: 10.1002/adma.202207580] [Citation(s) in RCA: 16] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/19/2022] [Revised: 10/07/2022] [Indexed: 06/16/2023]
Abstract
Polymer film capacitors have been widely used in electronics and electrical power systems due to their advantages of high power densities, fast charge-discharge speed, and great stability. However, the exponential increase of electrical conduction with temperature and applied electric field substantially degrades the capacitive performance of dielectric polymers at elevated temperatures. Here, the first example of controlling the energy level of charge traps in all-organic crosslinked polymers by tailoring molecular structures that significantly inhibit high-field high-temperature conduction loss, which largely differs from current approaches based on the introduction of inorganic fillers, is reported. The polymer network with optimized crosslinking structures exhibits an ultrahigh discharged energy density of 7.02 J cm-3 with charge/discharge efficiencies of >90% at 150 °C, far outperforming current dielectric polymers and composites. The charge-trapping effects in different crosslinked structures, as the origins of the marked improvements in the high-temperature capacitive performance, are comprehensively investigated experimentally and confirmed computationally. Moreover, excellent cyclability and self-healing features are demonstrated in the polymer film capacitors. This work offers a promising pathway of molecular structure design to scalable high-energy-density polymer dielectrics capable of operating under harsh environments.
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Affiliation(s)
- Zizhao Pan
- Department of Materials Science and Engineering, Southern University of Science and Technology, Shenzhen, Guangdong, 518055, China
| | - Li Li
- Department of Materials Science and Engineering, Southern University of Science and Technology, Shenzhen, Guangdong, 518055, China
| | - Lina Wang
- Department of Materials Science and Engineering, Southern University of Science and Technology, Shenzhen, Guangdong, 518055, China
- Guangdong Provincial Key Laboratory of Computational Science and Material Design, Southern University of Science and Technology, Shenzhen, Guangdong, 518055, China
| | - Guangfu Luo
- Department of Materials Science and Engineering, Southern University of Science and Technology, Shenzhen, Guangdong, 518055, China
- Guangdong Provincial Key Laboratory of Computational Science and Material Design, Southern University of Science and Technology, Shenzhen, Guangdong, 518055, China
| | - Xinwei Xu
- Department of Materials Science and Engineering, Southern University of Science and Technology, Shenzhen, Guangdong, 518055, China
| | - Fei Jin
- Department of Materials Science and Engineering, Southern University of Science and Technology, Shenzhen, Guangdong, 518055, China
| | - Jiufeng Dong
- Department of Materials Science and Engineering, Southern University of Science and Technology, Shenzhen, Guangdong, 518055, China
| | - Yujuan Niu
- Department of Materials Science and Engineering, Southern University of Science and Technology, Shenzhen, Guangdong, 518055, China
| | - Liang Sun
- Department of Materials Science and Engineering, Southern University of Science and Technology, Shenzhen, Guangdong, 518055, China
| | - Chuanfei Guo
- Department of Materials Science and Engineering, Southern University of Science and Technology, Shenzhen, Guangdong, 518055, China
| | - Wenqing Zhang
- Department of Materials Science and Engineering, Southern University of Science and Technology, Shenzhen, Guangdong, 518055, China
| | - Qing Wang
- Department of Materials Science and Engineering, The Pennsylvania State University, University Park, PA, 16802, USA
| | - Hong Wang
- Department of Materials Science and Engineering, Southern University of Science and Technology, Shenzhen, Guangdong, 518055, China
- Guangdong Provincial Key Laboratory of Computational Science and Material Design, Southern University of Science and Technology, Shenzhen, Guangdong, 518055, China
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41
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Wang TY, Li XF, Liu SM, Liu BX, Liang XD, Li S, Zhang GX, Liu JB, Dang ZM. Self-assembled wide bandgap nanocoatings enabled outstanding dielectric characteristics in the sandwich-like structure polymer composites. NANO CONVERGENCE 2022; 9:55. [PMID: 36484882 PMCID: PMC9733754 DOI: 10.1186/s40580-022-00346-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/26/2022] [Accepted: 11/17/2022] [Indexed: 06/17/2023]
Abstract
Polymer dielectrics are insulators or energy storage materials widely used in electrical and electronic devices. Polymer dielectrics are needed with outstanding dielectric characteristics than current technologies. In this study, the self-assembly of boron nitride nanosheets (BNNSs) was applied to form an inorganic-organic nanocoating on various common polymer dielectrics. It is inexpensive and easy to fabricate this thin coating on a large scale. The coating has a wide bandgap and thus can significantly improve the breakdown strength of polymer dielectrics. The charge characteristics and trapping parameters of nano-domains on the surfaces of polymer dielectrics were measured, and the coating had shallow trap levels. This facilitated the dissipation of surface charges and thus greatly increased the flashover voltage. The coating also effectively improved the temperature stability and dielectric constant of the polymer dielectric. This nanocoating shows potential as a method to effectively improve the dielectric characteristics of polymer dielectrics and outperform existing composite polymer dielectrics, which are crucial for large-scale applications in energy storage and power and electronic devices.
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Affiliation(s)
- Tian-Yu Wang
- State Key Laboratory of Control and Simulation of Power System and Generation Equipment, Department of Electrical Engineering, Tsinghua University, Beijing, 100084, China
| | - Xiao-Fen Li
- Key Laboratory of Advanced Materials (MOE), School of Materials Science and Engineering, Tsinghua University, Beijing, 100084, China
| | - Shu-Ming Liu
- State Key Laboratory of Control and Simulation of Power System and Generation Equipment, Department of Electrical Engineering, Tsinghua University, Beijing, 100084, China
| | - Bai-Xin Liu
- Key Laboratory of Advanced Materials (MOE), School of Materials Science and Engineering, Tsinghua University, Beijing, 100084, China
| | - Xi-Dong Liang
- State Key Laboratory of Control and Simulation of Power System and Generation Equipment, Department of Electrical Engineering, Tsinghua University, Beijing, 100084, China
| | - Shunning Li
- School of Advanced Materials, Shenzhen Graduate School, Peking University, Shenzhen, 518055, China
| | - Gui-Xin Zhang
- State Key Laboratory of Control and Simulation of Power System and Generation Equipment, Department of Electrical Engineering, Tsinghua University, Beijing, 100084, China.
| | - Jian-Bo Liu
- Key Laboratory of Advanced Materials (MOE), School of Materials Science and Engineering, Tsinghua University, Beijing, 100084, China.
| | - Zhi-Min Dang
- State Key Laboratory of Control and Simulation of Power System and Generation Equipment, Department of Electrical Engineering, Tsinghua University, Beijing, 100084, China.
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42
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Yang M, Ren W, Guo M, Shen Y. High-Energy-Density and High Efficiency Polymer Dielectrics for High Temperature Electrostatic Energy Storage: A Review. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2022; 18:e2205247. [PMID: 36266932 DOI: 10.1002/smll.202205247] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/26/2022] [Revised: 09/26/2022] [Indexed: 06/16/2023]
Abstract
Polymer dielectrics are key components for electrostatic capacitors in energy, transportation, military, and aerospace fields, where their operation temperature can be boosted beyond 125 °C. While most polymers bear poor thermal stability and severe dielectric loss at elevated temperatures, numerous linear polymers with linear D-E loops and low dielectric permittivity exhibit low loss and high thermal stability. Therefore, the broad prospect of electrostatic capacitors under extreme conditions is anticipated for linear polymers, along with intensive efforts to enhance their energy density with high efficiency in recent years. In this article, an overview of recent progress in linear polymers and their composites for high-energy-density electrostatic capacitors at elevated temperatures is presented. Three key factors determining energy storage performance, including polarization, breakdown strength, and thermal stability, and their couplings are discussed. Strategies including chain modulation, filler selection, and design of topological structure are summarized. Key parameters for electrical and thermal evaluations of polymer dielectrics are also introduced. At the end of this review, research challenges and future opportunities for better performance and industrialization of dielectrics based on linear polymers are concluded.
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Affiliation(s)
- Minzheng Yang
- School of Materials Science and Engineering, State Key Lab of New Ceramics and Fine Processing, Tsinghua University, Beijing, 100084, China
| | - Weibin Ren
- School of Materials Science and Engineering, State Key Lab of New Ceramics and Fine Processing, Tsinghua University, Beijing, 100084, China
| | - Mengfan Guo
- School of Materials Science and Engineering, State Key Lab of New Ceramics and Fine Processing, Tsinghua University, Beijing, 100084, China
| | - Yang Shen
- School of Materials Science and Engineering, State Key Lab of New Ceramics and Fine Processing, Tsinghua University, Beijing, 100084, China
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43
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Shang F, Wei J, Xu J, Zhang G, Li M, Xu K, Liu X, Li B, Huang H, Chen G, Xu H. Glass-Ceramic Capacitors with Simultaneously High Power and Energy Densities under Practical Charge-Discharge Conditions. ACS APPLIED MATERIALS & INTERFACES 2022; 14:53081-53089. [PMID: 36394924 DOI: 10.1021/acsami.2c16577] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Developing dielectric capacitors with both a high power density and a high energy density for application in power electronics has been a long-standing challenge. Glass-ceramics offer the potential of retaining the high relative permittivity of ceramics and at the same time of exhibiting the high dielectric breakdown strength and fast charge/discharge rate of glasses, thus producing concurrently high power and energy densities in a single material. In this work, glass-ceramics are fabricated to achieve simultaneously high power and energy densities, high efficiency, and thermal stability by tuning the glass crystallization process via a suitable nucleating agent and a high oxygen partial pressure. Under the same practical charge-discharge test conditions, the as-prepared glass-ceramics combine the high energy density of ceramics and ultrafast discharge rate of glasses, producing the highest power density among glass- and ceramic-based dielectric materials. This work demonstrates the significant potential of achieving both high power and energy densities in glass-ceramics by optimizing the glass crystallization process.
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Affiliation(s)
- Fei Shang
- Electronical Information Materials and Devices Engineering Research Center of Ministry of Education, Guangxi Key Laboratory of Information Materials, and School of Material Science and Engineering, Guilin University of Electronic Technology, Guilin541004, China
| | - Juwen Wei
- Electronical Information Materials and Devices Engineering Research Center of Ministry of Education, Guangxi Key Laboratory of Information Materials, and School of Material Science and Engineering, Guilin University of Electronic Technology, Guilin541004, China
| | - Jiwen Xu
- Electronical Information Materials and Devices Engineering Research Center of Ministry of Education, Guangxi Key Laboratory of Information Materials, and School of Material Science and Engineering, Guilin University of Electronic Technology, Guilin541004, China
| | - Guangzu Zhang
- School of Optical and Electronic Information, Engineering Research Center for Functional Ceramics MOE, Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Wuhan430074, China
| | - Ming Li
- Department of Mechanical, Manufacturing and Materials Engineering, University of Nottingham, University Park, NottinghamNG7 2RD, U.K
| | - Ke Xu
- Advanced Research Institute of Multidisciplinary Science and School of Materials Science and Engineering, Beijing Institute of Technology, Beijing100081, China
| | - Xiao Liu
- Electronical Information Materials and Devices Engineering Research Center of Ministry of Education, Guangxi Key Laboratory of Information Materials, and School of Material Science and Engineering, Guilin University of Electronic Technology, Guilin541004, China
| | - Bo Li
- Guilin Electrical Equipment Scientific Research Institute, Guilin541004, P. R. China
| | - Houbing Huang
- Advanced Research Institute of Multidisciplinary Science and School of Materials Science and Engineering, Beijing Institute of Technology, Beijing100081, China
| | - Guohua Chen
- Electronical Information Materials and Devices Engineering Research Center of Ministry of Education, Guangxi Key Laboratory of Information Materials, and School of Material Science and Engineering, Guilin University of Electronic Technology, Guilin541004, China
| | - Huarui Xu
- Electronical Information Materials and Devices Engineering Research Center of Ministry of Education, Guangxi Key Laboratory of Information Materials, and School of Material Science and Engineering, Guilin University of Electronic Technology, Guilin541004, China
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44
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Ren W, Yang M, Zhou L, Fan Y, He S, Pan J, Tang T, Xiao Y, Nan CW, Shen Y. Scalable Ultrathin All-Organic Polymer Dielectric Films for High-Temperature Capacitive Energy Storage. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2022; 34:e2207421. [PMID: 36210753 DOI: 10.1002/adma.202207421] [Citation(s) in RCA: 21] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/15/2022] [Revised: 09/23/2022] [Indexed: 06/16/2023]
Abstract
The miniaturization of electronic devices and power systems for capacitive energy storage under harsh environments requires scalable high-quality ultrathin high-temperature dielectric films. To meet the need, ultrasonic spray-coating (USC) can be used. Novel polyimides with a dipolar group, CF3 (F-PI), and all-organic composites with trace organic semiconductor can serve as models. These scalable high-quality ultrathin films (≈2.6 and ≈5.2 µm) are successfully fabricated via USC. The high quality of the films is evaluated from the micro-millimeter scale to the sub-millimeter and above. The high glass transition temperature Tg (≈340 °C) and concurrent large bandgap Eg (≈3.53 eV) induced by weak conjugation from considerable interchain distance (≈6.2 Å) enable F-PI to be an excellent matrix delivering a discharge energy density with 90% discharge efficiency Uη90 of 2.85 J cm-3 at 200 °C. Further, the incorporation of a trace organic semiconductor leads to a record Uη90 of ≈4.39 J cm-3 at 200 °C due to the markedly enhanced breakdown strength caused by deep charge traps of ≈2 eV. Also, a USC-fabricated multilayer F-PI foil capacitor with ≈85 nF (six layers) has good performance at 150 °C. These results confirm that USC is an excellent technology to fabricate high-quality ultrathin dielectric films and capacitors.
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Affiliation(s)
- Weibin Ren
- State Key Lab of New Ceramics and Fine Processing, School of Materials Science and Engineering, Tsinghua University, Beijing, 100084, P. R. China
| | - Minzheng Yang
- State Key Lab of New Ceramics and Fine Processing, School of Materials Science and Engineering, Tsinghua University, Beijing, 100084, P. R. China
| | - Le Zhou
- State Key Lab of New Ceramics and Fine Processing, School of Materials Science and Engineering, Tsinghua University, Beijing, 100084, P. R. China
| | - Youjun Fan
- State Key Lab of New Ceramics and Fine Processing, School of Materials Science and Engineering, Tsinghua University, Beijing, 100084, P. R. China
| | - Shan He
- State Key Lab of New Ceramics and Fine Processing, School of Materials Science and Engineering, Tsinghua University, Beijing, 100084, P. R. China
| | - Jiayu Pan
- State Key Lab of New Ceramics and Fine Processing, School of Materials Science and Engineering, Tsinghua University, Beijing, 100084, P. R. China
| | - Tongxiang Tang
- State Key Lab of New Ceramics and Fine Processing, School of Materials Science and Engineering, Tsinghua University, Beijing, 100084, P. R. China
| | - Yao Xiao
- State Key Lab of New Ceramics and Fine Processing, School of Materials Science and Engineering, Tsinghua University, Beijing, 100084, P. R. China
| | - Ce-Wen Nan
- State Key Lab of New Ceramics and Fine Processing, School of Materials Science and Engineering, Tsinghua University, Beijing, 100084, P. R. China
| | - Yang Shen
- State Key Lab of New Ceramics and Fine Processing, School of Materials Science and Engineering, Tsinghua University, Beijing, 100084, P. R. China
- Center for Flexible Electronics Technology, Tsinghua University, Beijing, 100084, P. R. China
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45
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Xie Y, Fan X, Li X, Zhang Y, Zhang Z, Huang X. Perspective on interface engineering for capacitive energy storage polymer nanodielectrics. Phys Chem Chem Phys 2022; 24:19624-19633. [PMID: 35972403 DOI: 10.1039/d2cp02783f] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Polymer nanodielectrics with high breakdown strength (Eb), high energy density (Ue) and low energy loss have great potential to be used as capacitive energy storage materials of high-voltage film capacitors in modern electrical and electronic equipment, such as smart grids, new energy vehicles and pulse powered weapons. Usually, inorganic nanoparticles with high dielectric constant (εr) are added into a high Eb polymer matrix to achieve simultaneously enhanced εr and Eb, thus leading to nanodielectrics with high Ue. However, this strategy was seriously hampered by the uneven distribution of electric fields and inhomogeneous microstructures of the multi-phased nanodielectrics until increasing research work was focused on interface engineering. Recent progress in nanocomposites suggests that interface engineering plays a critical role in regulating the polarization and breakdown behaviors of the nanodielectrics, such as balancing εr and Eb, enhancing Ue and energy discharge efficiency (η). This article highlights the recent advances in the interface engineering of polymer nanodielectrics, including theoretical models, interface engineering strategies, and the latest characterization and fabrication techniques of high performance nanodielectrics. Finally, the challenges and opportunities in the interface engineering of the nanodielectrics in film capacitors are discussed and predicted from a practical point of view.
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Affiliation(s)
- Yunchuan Xie
- School of Chemistry, Xi'an Key Laboratory of Sustainable Energy Material Chemistry, Xi'an Jiaotong University, Xi'an, Shanxi, 710049, China.
| | - Xing Fan
- School of Chemistry, Xi'an Key Laboratory of Sustainable Energy Material Chemistry, Xi'an Jiaotong University, Xi'an, Shanxi, 710049, China.
| | - Xinyi Li
- School of Chemistry, Xi'an Key Laboratory of Sustainable Energy Material Chemistry, Xi'an Jiaotong University, Xi'an, Shanxi, 710049, China.
| | - Ying Zhang
- School of Chemistry, Xi'an Key Laboratory of Sustainable Energy Material Chemistry, Xi'an Jiaotong University, Xi'an, Shanxi, 710049, China.
| | - Zhicheng Zhang
- School of Chemistry, Xi'an Key Laboratory of Sustainable Energy Material Chemistry, Xi'an Jiaotong University, Xi'an, Shanxi, 710049, China.
| | - Xingyi Huang
- Department of Polymer Science & Engineering, Shanghai Key Laboratory of Electrical Insulation & Thermal Ageing, Shanghai Jiao Tong University, Shanghai, 200240, China.
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46
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Li Y, Liang Q, Xu R, Li X, Zhang D, Zhuang Y, Luo L, Lv J, Zhai W, Liu X. Preparation of aromatic polyamide with ultra-high intrinsic breakdown strength via layered stacking structure induced by coplanar monomer. POLYMER 2022. [DOI: 10.1016/j.polymer.2022.125170] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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47
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Zhu Y, Shen Z, Li Y, Chai B, Chen J, Jiang P, Huang X. High Conduction Band Inorganic Layers for Distinct Enhancement of Electrical Energy Storage in Polymer Nanocomposites. NANO-MICRO LETTERS 2022; 14:151. [PMID: 35876955 PMCID: PMC9314523 DOI: 10.1007/s40820-022-00902-9] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/22/2022] [Accepted: 07/04/2022] [Indexed: 05/21/2023]
Abstract
Dielectric polymer nanocomposites are considered as one of the most promising candidates for high-power-density electrical energy storage applications. Inorganic nanofillers with high insulation property are frequently introduced into fluoropolymer to improve its breakdown strength and energy storage capability. Normally, inorganic nanofillers are thought to introducing traps into polymer matrix to suppress leakage current. However, how these nanofillers effect the leakage current is still unclear. Meanwhile, high dopant (> 5 vol%) is prerequisite for distinctly improved energy storage performance, which severely deteriorates the processing and mechanical property of polymer nanocomposites, hence brings high technical complication and cost. Herein, boron nitride nanosheet (BNNS) layers are utilized for substantially improving the electrical energy storage capability of polyvinylidene fluoride (PVDF) nanocomposite. Results reveal that the high conduction band minimum of BNNS produces energy barrier at the interface of adjacent layers, preventing the electron in PVDF from passing through inorganic layers, leading to suppressed leakage current and superior breakdown strength. Accompanied by improved Young's modulus (from 1.2 GPa of PVDF to 1.6 GPa of nanocomposite), significantly boosted discharged energy density (14.3 J cm-3) and charge-discharge efficiency (75%) are realized in multilayered nanocomposites, which are 340 and 300% of PVDF (4.2 J cm-3, 25%). More importantly, thus remarkably boosted energy storage performance is accomplished by marginal BNNS. This work offers a new paradigm for developing dielectric nanocomposites with advanced energy storage performance.
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Affiliation(s)
- Yingke Zhu
- Shanghai Key Laboratory of Electrical Insulation and Thermal Ageing, State Key Laboratory of Metal Matrix Composites, Department of Polymer Science and Engineering, Shanghai Jiao Tong University, Shanghai, 200240, People's Republic of China
| | - Zhonghui Shen
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Center of Smart Materials and Devices, Wuhan University of Technology, Wuhan, 430070, People's Republic of China
| | - Yong Li
- Institute of Applied and Physical Chemistry and Center for Environmental Research and Sustainable Technology, University of Bremen, 28359, Bremen, Germany
| | - Bin Chai
- Shanghai Key Laboratory of Electrical Insulation and Thermal Ageing, State Key Laboratory of Metal Matrix Composites, Department of Polymer Science and Engineering, Shanghai Jiao Tong University, Shanghai, 200240, People's Republic of China
| | - Jie Chen
- Shanghai Key Laboratory of Electrical Insulation and Thermal Ageing, State Key Laboratory of Metal Matrix Composites, Department of Polymer Science and Engineering, Shanghai Jiao Tong University, Shanghai, 200240, People's Republic of China
| | - Pingkai Jiang
- Shanghai Key Laboratory of Electrical Insulation and Thermal Ageing, State Key Laboratory of Metal Matrix Composites, Department of Polymer Science and Engineering, Shanghai Jiao Tong University, Shanghai, 200240, People's Republic of China
| | - Xingyi Huang
- Shanghai Key Laboratory of Electrical Insulation and Thermal Ageing, State Key Laboratory of Metal Matrix Composites, Department of Polymer Science and Engineering, Shanghai Jiao Tong University, Shanghai, 200240, People's Republic of China.
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Polyimide Nanodielectrics Doped with Ultralow Content of MgO Nanoparticles for High-Temperature Energy Storage. Polymers (Basel) 2022; 14:polym14142918. [PMID: 35890694 PMCID: PMC9321189 DOI: 10.3390/polym14142918] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2022] [Revised: 07/12/2022] [Accepted: 07/14/2022] [Indexed: 02/06/2023] Open
Abstract
Advanced polymer dielectrics with high energy density at elevated temperatures are highly desired to meet the requirements of modern electronic and electrical systems under harsh conditions. Herein, we report a novel polyimide/magnesium oxide (PI/MgO) nanodielectric that exhibits high energy storage density (Ue) and charge–discharge efficiency (η) along with excellent cycling stability at elevated temperatures. Benefiting from the large bandgap of MgO and the extended interchain spacing of PI, the composite films can simultaneously achieve high dielectric constant and high breakdown strength, leading to enhanced energy storage density. The nanocomposite film doped with 0.1 vol% MgO can achieve a maximum Ue of 2.6 J cm−3 and a η of 89% at 450 MV m−1 and 150 °C, which is three times that of the PI film under the same conditions. In addition, embedding ultralow content of inorganic fillers can avoid aggregation and facilitate its large-scale production. This work may provide a new paradigm for exploring polymer nanocomposites with excellent energy storage performance at high temperatures and under a high electric field.
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Sun B, Hu P, Ji X, Fan M, Zhou L, Guo M, He S, Shen Y. Excellent Stability in Polyetherimide/SiO 2 Nanocomposites with Ultrahigh Energy Density and Discharge Efficiency at High Temperature. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2022; 18:e2202421. [PMID: 35695338 DOI: 10.1002/smll.202202421] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/19/2022] [Revised: 05/24/2022] [Indexed: 06/15/2023]
Abstract
Polymer dielectrics with excellent thermal stability are the essential core material for thin film capacitors applied in a harsh-environment. However, the dielectric and mechanical properties of polymers are commonly deteriorated with temperature rising. Herein, polyetherimide (PEI)-based nanocomposites contained with SiO2 nanoparticles (SiO2 -NPs) are fabricated by a solution casting method. It is found that the introduction of SiO2 -NPs decreases the electric conductivity and significantly enhances the breakdown strength of the nanocomposites, especially under high temperatures. As a result, the 5 vol% PEI/SiO2 -NPs nanocomposite film displays a superior dielectric energy storage performance, e.g., a discharged energy density of 6.30 J cm-3 and a charge-discharge efficiency of 90.5% measured at 620 MV m-1 and 150 °C. In situ scanning Kelvin probe microscopy characterization indicates that the charge carriers can be trapped in the interfacial regions between the polymer matrix and the SiO2 -NPs till the temperature reaches as high as 150 °C. This work demonstrates an effective strategy to fabricate high-temperature dielectric polymer nanocomposites by embedding inorganic nanoparticles and provides a method for directly detecting charge behavior at the nanoscale inside the matrix.
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Affiliation(s)
- Binzhou Sun
- Research Center for New Functional Composites, Wuzhen Laboratory, Tongxiang, 314500, China
| | - Penghao Hu
- Research Center for New Functional Composites, Wuzhen Laboratory, Tongxiang, 314500, China
- Research Center for New Energy Composite Materials, Foshan (Southern China) Institute for New Materials, Foshan, 528200, China
| | - Xumin Ji
- Research Center for New Functional Composites, Wuzhen Laboratory, Tongxiang, 314500, China
| | - Mingzhi Fan
- Research Center for New Energy Composite Materials, Foshan (Southern China) Institute for New Materials, Foshan, 528200, China
| | - Le Zhou
- School of Materials Science and Engineering, State Key Lab of New Ceramics and Fine Processing, Tsinghua University, Beijing, 100084, China
| | - Mengfan Guo
- School of Materials Science and Engineering, State Key Lab of New Ceramics and Fine Processing, Tsinghua University, Beijing, 100084, China
| | - Shan He
- School of Materials Science and Engineering, State Key Lab of New Ceramics and Fine Processing, Tsinghua University, Beijing, 100084, China
| | - Yang Shen
- School of Materials Science and Engineering, State Key Lab of New Ceramics and Fine Processing, Tsinghua University, Beijing, 100084, China
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Sun L, Shi Z, Liang L, Dong J, Pan Z, Wang H, Gao Z, Qin Y, Fan R, Wang H. Concurrently Achieving High Discharged Energy Density and Efficiency in Composites by Introducing Ultralow Loadings of Core-Shell Structured Graphene@TiO 2 Nanoboxes. ACS APPLIED MATERIALS & INTERFACES 2022; 14:29292-29301. [PMID: 35726718 DOI: 10.1021/acsami.2c07229] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Polymer dielectrics have drawn tremendous attention worldwide due to their huge potential for pulsed power capacitors. Recent studies have demonstrated that linear/nonlinear layered composites, which can effectively balance energy density and efficiency, have huge potential for capacitive energy storage applications. However, further enhanced energy densities are strongly desired to meet the everincreasing demand for the miniaturization of electronic devices. Herein, a novel class of core-shell structured graphene@titanium dioxide nanoboxes is successfully synthesized and introduced into poly(vinylidene fluoride-hexafluoropropylene)-poly(ether imide) double-layer films. It is exciting to find that the introduction of merely 0.5 wt % nanoboxes results in a substantially enhanced energy density of 19.39 J/cm3, which is over 2.6 times that of the film without nanoboxes (7.44 J/cm3). Meanwhile, a high breakdown strength of 655 kV/mm and a high efficiency of 83% are achieved. Furthermore, the nanocomposites also show excellent power densities and cycling stabilities. These composites with excellent comprehensive energy storage performances have huge potential for advanced pulsed power capacitors.
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Affiliation(s)
- Liang Sun
- School of Materials Science and Engineering, Ocean University of China, Qingdao 266100, China
- Department of Materials Science and Engineering, Southern University of Science and Technology, Shenzhen 518055, China
- Shenzhen Engineering Research Center for Novel Electronic Information Materials and Devices & Guangdong Provincial Key Laboratory of Functional Oxide Materials and Devices, Southern University of Science and Technology, Shenzhen 518055, Guangdong, China
| | - Zhicheng Shi
- School of Materials Science and Engineering, Ocean University of China, Qingdao 266100, China
| | - Liang Liang
- School of Materials Science and Engineering, Ocean University of China, Qingdao 266100, China
| | - Jiufeng Dong
- Department of Materials Science and Engineering, Southern University of Science and Technology, Shenzhen 518055, China
- Shenzhen Engineering Research Center for Novel Electronic Information Materials and Devices & Guangdong Provincial Key Laboratory of Functional Oxide Materials and Devices, Southern University of Science and Technology, Shenzhen 518055, Guangdong, China
| | - Zizhao Pan
- Department of Materials Science and Engineering, Southern University of Science and Technology, Shenzhen 518055, China
- Shenzhen Engineering Research Center for Novel Electronic Information Materials and Devices & Guangdong Provincial Key Laboratory of Functional Oxide Materials and Devices, Southern University of Science and Technology, Shenzhen 518055, Guangdong, China
| | - Huanlei Wang
- School of Materials Science and Engineering, Ocean University of China, Qingdao 266100, China
| | - Zhe Gao
- State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan 030001, China
| | - Yong Qin
- State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan 030001, China
| | - Runhua Fan
- Institute of Marine Materials Science and Engineering, Shanghai Maritime University, Shanghai 201306, China
| | - Hong Wang
- Department of Materials Science and Engineering, Southern University of Science and Technology, Shenzhen 518055, China
- Shenzhen Engineering Research Center for Novel Electronic Information Materials and Devices & Guangdong Provincial Key Laboratory of Functional Oxide Materials and Devices, Southern University of Science and Technology, Shenzhen 518055, Guangdong, China
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