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Wang Y, Chen Z, Jiang K, Shen Z, Passerini S, Chen M. Accelerating the Development of LLZO in Solid-State Batteries Toward Commercialization: A Comprehensive Review. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024; 20:e2402035. [PMID: 38770746 DOI: 10.1002/smll.202402035] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/09/2024] [Revised: 04/09/2024] [Indexed: 05/22/2024]
Abstract
Solid-state batteries (SSBs) are under development as high-priority technologies for safe and energy-dense next-generation electrochemical energy storage systems operating over a wide temperature range. Solid-state electrolytes (SSEs) exhibit high thermal stability and, in some cases, the ability to prevent dendrite growth through a physical barrier, and compatibility with the "holy grail" metallic lithium. These unique advantages of SSEs have spurred significant research interests during the last decade. Garnet-type SSEs, that is, Li7La3Zr2O12 (LLZO), are intensively investigated due to their high Li-ion conductivity and exceptional chemical and electrochemical stability against lithium metal anodes. However, poor interfacial contact with cathode materials, undesirable lithium plating along grain boundaries, and moisture-induced chemical degradation greatly hinder the practical implementation of LLZO-based SSEs for SSBs. In this review, the recent advances in synthesis methods, modification strategies, corresponding mechanisms, and applications of garnet-based SSEs in SSBs are critically summarized. Furthermore, a comprehensive evaluation of the challenges and development trends of LLZO-based electrolytes in practical applications is presented to accelerate their development for high-performance SSBs.
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Affiliation(s)
- Yang Wang
- Key Laboratory of Engineering Dielectric and Applications (Ministry of Education), School of Electrical and Electronic Engineering, Harbin University of Science and Technology, Harbin, 150080, China
| | - Zhen Chen
- Key Laboratory of Engineering Dielectric and Applications (Ministry of Education), School of Electrical and Electronic Engineering, Harbin University of Science and Technology, Harbin, 150080, China
| | - Kai Jiang
- Key Laboratory of Engineering Dielectric and Applications (Ministry of Education), School of Electrical and Electronic Engineering, Harbin University of Science and Technology, Harbin, 150080, China
- State Key Laboratory of Advanced Electromagnetic Engineering, School of Electrical and Electronic Engineering, Huazhong University of Science and Technology, Wuhan, 430074, China
| | - Zexiang Shen
- Key Laboratory of Engineering Dielectric and Applications (Ministry of Education), School of Electrical and Electronic Engineering, Harbin University of Science and Technology, Harbin, 150080, China
| | - Stefano Passerini
- Helmholtz Institute Ulm (HIU), Helmholtzstrasse 11, D-89081, Ulm, Germany
- Karlsruhe Institute of Technology (KIT), P.O. Box 3640, D-76021, Karlsruhe, Germany
- Sapienza University of Rome, Chemistry Department, P. Aldo Moro 5, Rome, 00185, Italy
| | - Minghua Chen
- Key Laboratory of Engineering Dielectric and Applications (Ministry of Education), School of Electrical and Electronic Engineering, Harbin University of Science and Technology, Harbin, 150080, China
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Park J, Seong H, Yuk C, Lee D, Byun Y, Lee E, Lee W, Kim BJ. Design of Fluorinated Elastomeric Electrolyte for Solid-State Lithium Metal Batteries Operating at Low Temperature and High Voltage. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2024; 36:e2403191. [PMID: 38713915 DOI: 10.1002/adma.202403191] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/01/2024] [Revised: 04/28/2024] [Indexed: 05/09/2024]
Abstract
This work demonstrates the low-temperature operation of solid-state lithium metal batteries (LMBs) through the development of a fluorinated and plastic-crystal-embedded elastomeric electrolyte (F-PCEE). The F-PCEE is formed via polymerization-induced phase separation between the polymer matrix and plastic crystal phase, offering a high mechanical strain (≈300%) and ionic conductivity (≈0.23 mS cm-1) at -10 °C. Notably, strong phase separation between two phases leads to the selective distribution of lithium (Li) salts within the plastic crystal phase, enabling superior elasticity and high ionic conductivity at low temperatures. The F-PCEE in a Li/LiNi0.8Co0.1Mn0.1O2 full cell maintains 74.4% and 42.5% of discharge capacity at -10 °C and -20 °C, respectively, compared to that at 25 °C. Furthermore, the full cell exhibits 85.3% capacity retention after 150 cycles at -10 °C and a high cut-off voltage of 4.5 V, representing one of the highest cycling performances among the reported solid polymer electrolytes for low-temperature LMBs. This work attributes the prolonged cycling lifetime of F-PCEE at -10 °C to the great mechanical robustness to suppress the Li-dendrite growth and ability to form superior LiF-rich interphases. This study establishes the design strategies of elastomeric electrolytes for developing solid-state LMBs operating at low temperatures and high voltages.
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Affiliation(s)
- Jinseok Park
- Department of Chemical and Biomolecular Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, 34141, Republic of Korea
| | - Hyeonseok Seong
- Department of Chemical and Biomolecular Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, 34141, Republic of Korea
| | - Chanho Yuk
- Department of Polymer Science and Engineering, Department of Energy Engineering Convergence, Kumoh National Institute of Technology, Gumi, Gyeongbuk, 39177, Republic of Korea
| | - Dongkyu Lee
- Department of Chemical and Biomolecular Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, 34141, Republic of Korea
| | - Youyoung Byun
- School of Materials Science and Engineering, Gwangju Institute of Science and Technology (GIST), Gwangju, 61005, Republic of Korea
| | - Eunji Lee
- School of Materials Science and Engineering, Gwangju Institute of Science and Technology (GIST), Gwangju, 61005, Republic of Korea
| | - Wonho Lee
- Department of Polymer Science and Engineering, Department of Energy Engineering Convergence, Kumoh National Institute of Technology, Gumi, Gyeongbuk, 39177, Republic of Korea
| | - Bumjoon J Kim
- Department of Chemical and Biomolecular Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, 34141, Republic of Korea
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Han W, Li G, Zhang J. Diversifying Ion-Transport Pathways of Composite Solid Electrolytes for High-Performance Solid-State Lithium-Metal Batteries. ACS APPLIED MATERIALS & INTERFACES 2024; 16:27280-27290. [PMID: 38743801 DOI: 10.1021/acsami.4c01689] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/16/2024]
Abstract
The application of composite solid electrolytes (CSEs) in solid-state lithium-metal batteries is limited by the unsatisfactory ionic conductivity underpinned by the low concentration of free lithium ions. Herein, we propose an interface design strategy where an amine silane linker is employed as a coupling agent to graft the Li7La3Zr2O12 (LLZO) ceramic nanofibers to the poly(vinylidene fluoride-co-hexafluoropropylene) (PVDF-HFP) polymer matrix to enhance their interaction. The hydrogen bonding between amino-functionalized LLZO (NH2@LLZO) and PVDF-HFP not only effectively induces a uniform incorporation of high-content nanofibers (50 wt %) into the polymer matrix but also furnishes sufficient continuous surfaces to weaken the complexation between PVDF-HFP and Li-ion carriers. Additionally, introduction of the hydrogen bond and Lewis acid-base interplay strengthens the interfacial interactions between NH2@LLZO and lithium salts that release more free lithium ions for efficient interfacial transport. The impact of the linker's structure on the dissociation capacity of lithium salts is systematically studied from the steric effect perspective, which affords insights into interface design. Conclusively, the composite solid electrolyte achieves a high ionic conductivity (5.8 × 10-4 S cm-1) by synergy of multiple transport channels at ceramic, polymer, and their interface, which effectively regulates the lithium deposition behavior in symmetric cells. The excellent compatibility of the electrolyte with both LiFePO4 and LiNi0.8Co0.1Mn0.1O2 cathodes also results in a long lifetime and a high rate capability for full cells.
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Affiliation(s)
- Wei Han
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai 201620, China
| | - Guang Li
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai 201620, China
| | - Jingjing Zhang
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai 201620, China
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Wang Q, Xu H, Liu Z, Chi SS, Chang J, Wang J, Wang C, Deng Y. Ultrathin, Mechanically Robust Quasi-Solid Composite Electrolyte for Solid-State Lithium Metal Batteries. ACS APPLIED MATERIALS & INTERFACES 2024; 16:22482-22492. [PMID: 38651802 DOI: 10.1021/acsami.4c01426] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/25/2024]
Abstract
Herein, we present the preparation and properties of an ultrathin, mechanically robust, quasi-solid composite electrolyte (SEO-QSCE) for solid-state lithium metal battery (SLB) from a well-defined polystyrene-b-poly(ethylene oxide) diblock copolymer (SEO), Li6.75La3Zr1.75Ta0.25O12 nanofiller, and fluoroethylene carbonate plasticizer. Compared with the ordered lamellar microphase separation of SEO, the SEO-QSCE displays bicontinuous phases, consisting of a Li+ ion conductive poly(ethylene oxide) domain and a mechanically robust framework of the polystyrene domain. Therefore, the 12 μm-thick SEO-QSCE membrane exhibits an exceptional ionic conductivity of 1.3 × 10-3 S cm-1 at 30 °C, along with a remarkable tensile strength of 5.1 MPa and an elastic modulus of 2.7 GPa. The high mechanical robustness and the self-generated LiF-rich SEI enable the SEO-QSCE to have an extraordinary lithium dendrite prohibition effect. The SLB of Li|SEO-QSCE|LiFePO4 reveals superior cycling performances at 30 °C for over 600 cycles, maintaining an initial discharge capacity of 145 mAh g-1 and a remarkable capacity retention of 81% (117 mAh g-1) after 400 cycles at 0.5 C. The high-voltage SLB of Li|SEO-QSCE|LiNi0.5Co0.3Mn0.2O2 displays good cycling stability for over 150 cycles at 30 °C. Moreover, the exceptional robustness of SEO-QSCE enables the high-voltage solid-state pouch cell of Li|SEO-QSCE|LiNi0.5Co0.3Mn0.2O2 with high flexibility and excellent safety features. The current investigation delivers a promising and innovative approach for preparing quasi-solid electrolytes with features of ultrathin design, mechanical robustness, and exceptional electrochemical performance for high-voltage SLBs.
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Affiliation(s)
- Qingrong Wang
- Department of Materials Science and Engineering, School of Innovation and Entrepreneurship, Guangdong Provincial Key Laboratory of Energy Materials for Electric Power, Southern University of Science and Technology, Shenzhen 518055, PR China
| | - Hongli Xu
- Department of Materials Science and Engineering, School of Innovation and Entrepreneurship, Guangdong Provincial Key Laboratory of Energy Materials for Electric Power, Southern University of Science and Technology, Shenzhen 518055, PR China
| | - Zhongbo Liu
- Shenzhen CAPCHEM Technology Co. Ltd., Shabo Tongfuyu Industry Zone, Pingshan New District, Shenzhen 518118, PR China
| | - Shang-Sen Chi
- Department of Materials Science and Engineering, School of Innovation and Entrepreneurship, Guangdong Provincial Key Laboratory of Energy Materials for Electric Power, Southern University of Science and Technology, Shenzhen 518055, PR China
| | - Jian Chang
- School of Physical Sciences, Great Bay University, Dongguan 523000, PR China
| | - Jun Wang
- Department of Materials Science and Engineering, School of Innovation and Entrepreneurship, Guangdong Provincial Key Laboratory of Energy Materials for Electric Power, Southern University of Science and Technology, Shenzhen 518055, PR China
| | - Chaoyang Wang
- Research Institute of Materials Science, South China University of Technology, Guangzhou 510640, PR China
| | - Yonghong Deng
- Department of Materials Science and Engineering, School of Innovation and Entrepreneurship, Guangdong Provincial Key Laboratory of Energy Materials for Electric Power, Southern University of Science and Technology, Shenzhen 518055, PR China
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Liu J, Lin H, Li H, Zhao D, Liu W, Tao X. In Situ Polymerization Derived from PAN-Based Porous Membrane Realizing Double-Stabilized Interface and High Ionic Conductivity for Lithium-Metal Batteries. ACS APPLIED MATERIALS & INTERFACES 2024. [PMID: 38605517 DOI: 10.1021/acsami.4c04581] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/13/2024]
Abstract
Polymer polyacrylonitrile (PAN), with exceptional mechanical strength and ionic conductivity, is considered a potential electrolyte. However, the huge interfacial impedance of PAN-derived C≡N polar nitrile groups and Li anode limited its application. In this study, a double-stabilized interface was integrated by in situ polymerization of DOL between electrodes and a three-dimensional (3D) porous PAN polymer matrix containing SN plasticizer and LLZTO ceramic fillers to optimize the challenge of interfacial instability. The fabricated PDOL-PAN(SN/LLZTO)-PDOL composite solid electrolyte (CSE) exhibited the maximum ionic conductivities of 1.9 × 10-3 S cm-1 at room temperature and 2.5 × 10-3 S cm-1 at 60 °C, an electrochemical stability window (ESW) of 4.9 V, and a high Li+ transference number (tLi+) of 0.65. In addition, the side reactions of the PAN/Li metal were effectively prevented by inserting PDOL between the 3D porous membrane and Li electrode. Benefiting from the superior interface compatibility and ion conductivity, the Li symmetric battery showed more than 2000 h of cyclability. The solid Li/LiFePO4 full battery delivered excellent cycling performance, showing an original specific capacity of 136.2 mAh g-1 with a capacity retention of 90.1% after 350 cycles at 1C and 60 °C. Furthermore, the cycling of solid-state Li/NCM622 batteries also proved their application potential. This work presents an effective approach to solving interface problems of the PAN electrolyte for solid lithium-metal batteries (LMBs).
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Affiliation(s)
- Jing Liu
- State Key Laboratory of Organic-Inorganic Composites, Beijing University of Chemical Technology, 15 Beisanhuan East Road, Beijing 100029, China
| | - Husitu Lin
- Key Laboratory of Carbon Fiber and Functional Polymers of Ministry of Education, Beijing University of Chemical Technology, Beijing 100029, China
| | - Haotong Li
- State Key Laboratory of Organic-Inorganic Composites, Beijing University of Chemical Technology, 15 Beisanhuan East Road, Beijing 100029, China
| | - Dianfa Zhao
- State Key Laboratory of Organic-Inorganic Composites, Beijing University of Chemical Technology, 15 Beisanhuan East Road, Beijing 100029, China
| | - Wei Liu
- Key Laboratory of Carbon Fiber and Functional Polymers of Ministry of Education, Beijing University of Chemical Technology, Beijing 100029, China
| | - Xia Tao
- State Key Laboratory of Organic-Inorganic Composites, Beijing University of Chemical Technology, 15 Beisanhuan East Road, Beijing 100029, China
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Xian C, Zhang S, Liu P, Huang L, He X, Shen S, Cao F, Liang X, Wang C, Wan W, Zhang Y, Liu X, Zhong Y, Xia Y, Chen M, Zhang W, Xia X, Tu J. An Advanced Gel Polymer Electrolyte for Solid-State Lithium Metal Batteries. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024; 20:e2306381. [PMID: 38013253 DOI: 10.1002/smll.202306381] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/27/2023] [Revised: 10/19/2023] [Indexed: 11/29/2023]
Abstract
All-solid-state lithium metal batteries (LMBs) are regarded as one of the most viable energy storage devices and their comprehensive properties are mainly controlled by solid electrolytes and interface compatibility. This work proposes an advanced poly(vinylidene fluoride-hexafluoropropylene) based gel polymer electrolyte (AP-GPEs) via functional superposition strategy, which involves incorporating butyl acrylate and polyethylene glycol diacrylate as elastic optimization framework, triethyl phosphate and fluoroethylene carbonate as flameproof liquid plasticizers, and Li7La3Zr2O12 nanowires (LLZO-w) as ion-conductive fillers, endowing the designed AP-GPEs/LLZO-w membrane with high mechanical strength, excellent flexibility, low flammability, low activation energy (0.137 eV), and improved ionic conductivity (0.42 × 10-3 S cm-1 at 20 °C) due to continuous ionic transport pathways. Additionally, the AP-GPEs/LLZO-w membrane shows good safety and chemical/electrochemical compatibility with the lithium anode, owing to the synergistic effect of LLZO-w filler, flexible frameworks, and flame retardants. Consequently, the LiFePO4/Li batteries assembled with AP-GPEs/LLZO-w electrolyte exhibit enhanced cycling performance (87.3% capacity retention after 600 cycles at 1 C) and notable high-rate capacity (93.3 mAh g-1 at 5 C). This work proposes a novel functional superposition strategy for the synthesis of high-performance comprehensive GPEs for LMBs.
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Affiliation(s)
- Chunxiang Xian
- School of Materials Science and Engineering, Zhejiang University, Hangzhou, 310027, P. R. China
| | - Shengzhao Zhang
- School of Materials Science and Engineering, Zhejiang University, Hangzhou, 310027, P. R. China
| | - Ping Liu
- School of Materials Science and Engineering, Zhejiang University, Hangzhou, 310027, P. R. China
| | - Lei Huang
- School of Materials Science and Engineering, Zhejiang University, Hangzhou, 310027, P. R. China
| | - Xinping He
- College of Materials Science & Engineering, Zhejiang University of Technology, Hangzhou, 310014, China
| | - Shenghui Shen
- School of Materials Science and & Engineering, Zhejiang Sci-Tech University, Hangzhou, 310018, China
| | - Feng Cao
- Department of Engineering Technology, Huzhou College, Huzhou, 313000, P. R. China
| | - Xinqi Liang
- School of Materials Science and Engineering, Zhejiang University, Hangzhou, 310027, P. R. China
- Institute of Fundamental and Frontier Science, University of Electronic Science and Technology of China, Chengdu, 611371, China
- Key Laboratory of Engineering Dielectric and Applications (Ministry of Education), School of Electrical and Electronic Engineering, Harbin University of Science and Technology, Harbin, 150080, P. R. China
| | - Chen Wang
- Zhejiang Academy of Science and Technology for Inspection & Quarantine, Zhejiang, Hangzhou, 311215, P. R. China
| | - Wangjun Wan
- Zhejiang Academy of Science and Technology for Inspection & Quarantine, Zhejiang, Hangzhou, 311215, P. R. China
| | - Yongqi Zhang
- Institute of Fundamental and Frontier Science, University of Electronic Science and Technology of China, Chengdu, 611371, China
| | - Xin Liu
- State Key Laboratory of New Textile Materials and Advanced Processing Technologies, Wuhan Textile University, Wuhan, 430200, China
| | - Yu Zhong
- School of Materials Science and Engineering, Zhejiang University, Hangzhou, 310027, P. R. China
| | - Yang Xia
- College of Materials Science & Engineering, Zhejiang University of Technology, Hangzhou, 310014, China
| | - Minghua Chen
- Key Laboratory of Engineering Dielectric and Applications (Ministry of Education), School of Electrical and Electronic Engineering, Harbin University of Science and Technology, Harbin, 150080, P. R. China
| | - Wenkui Zhang
- College of Materials Science & Engineering, Zhejiang University of Technology, Hangzhou, 310014, China
| | - Xinhui Xia
- School of Materials Science and Engineering, Zhejiang University, Hangzhou, 310027, P. R. China
- College of Materials Science & Engineering, Zhejiang University of Technology, Hangzhou, 310014, China
- State Key Laboratory of Photocatalysis on Energy and Environment, Fuzhou University, Fuzhou, 350116, China
| | - Jiangping Tu
- School of Materials Science and Engineering, Zhejiang University, Hangzhou, 310027, P. R. China
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Hu H, Li W, Liu H, Kang G, Chang H, Cui S, Su G, Liu W, Jin Y. Studies on Composite Solid Electrolytes with a Dual Selective Confinement Interface Structure of Anions for High-Performance Lithium Metal Batteries. ACS APPLIED MATERIALS & INTERFACES 2024; 16:3552-3563. [PMID: 38197727 DOI: 10.1021/acsami.3c17567] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/11/2024]
Abstract
Solid-state lithium batteries (SSLBs) have attracted much attention due to their good thermal stability and high energy density. However, solid-state electrolytes with low conductivity and prominent interfacial issues have hindered the further development of SSLBs. In this research, inspired from a selective confinement structure of anions, a novel HMOF-DNSE composite solid electrolyte with a dual selective confinement interface structure is proposed based on the semi-interpenetrating structure generated by poly(vinylidene fluoride)-hexafluoropropylene (PVDF-HFP), poly(di-n-butylmethylammonium) bis(trifluoromethanesulfonyl)imide (PDADMATFSI), and a metal-organic frameworks MOF derivative (HMOF) as a filler. The dual-network structure of PVDF-HFP/PDADMATFSI combined with HMOF formed a dual selective confinement interface structure to confine out the movement of large anions TFSI-, thereby enhancing the transfer ability of Li+. Subsequently, the addition of HMOF further improves the transfer of Li+ by binding up TFSI- through its crystal structure. The results show that HMOF-DNSE possesses a high room-temperature ionic conductivity (0.7 mS cm-1), a wide electrochemical window (up to 4.5 V), and a high Li+ transfer number (tLi+) (0.56). LiFePO4/HMOF-DNSE/Li cell shows an excellent capacity of 141.5 mAh g-1 at 1C rate under room temperature, with a high retention of 80.1% after 500 cycles. The material design strategy, which is based on selective confinement interface structures of anions, offers valuable insights into enhancing the electrochemical performance of solid-state lithium batteries.
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Affiliation(s)
- Hongkai Hu
- School of Materials Science and Engineering, Ocean University of China, Qingdao 266100, P. R. China
| | - Weiya Li
- School of Materials Science and Engineering, Ocean University of China, Qingdao 266100, P. R. China
| | - Haojing Liu
- School of Materials Science and Engineering, Ocean University of China, Qingdao 266100, P. R. China
| | - Guohong Kang
- School of Materials Science and Engineering, Ocean University of China, Qingdao 266100, P. R. China
| | - Hui Chang
- School of Materials Science and Engineering, Ocean University of China, Qingdao 266100, P. R. China
| | - Shengrui Cui
- School of Materials Science and Engineering, Ocean University of China, Qingdao 266100, P. R. China
| | - Ge Su
- School of Materials Science and Engineering, Ocean University of China, Qingdao 266100, P. R. China
| | - Wei Liu
- School of Materials Science and Engineering, Ocean University of China, Qingdao 266100, P. R. China
| | - Yongcheng Jin
- School of Materials Science and Engineering, Ocean University of China, Qingdao 266100, P. R. China
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Liu C, Yuan Z, Chen K, Jiang Y, Yue M, Dong K, Liu Y, Guo Y, Wang Y. MXene-BN-Introduced Artificial SEI to Inhibit Dendrite Growth of Lithium Metal Batteries. ACS APPLIED MATERIALS & INTERFACES 2023; 15:56356-56364. [PMID: 38011600 DOI: 10.1021/acsami.3c09631] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/29/2023]
Abstract
Lithiophilic substrates have been shown to improve the electrochemical performance of lithium metal anodes. The MXene-BN/Cu 3D current collector was prepared by a filtration method. The artificial solid electrolyte interface (SEI) layer composed of Li3N and LiF was formed on the surface of MXene-BN/Cu during the Li deposition process. Volume changes can be effectively relieved by this special 3D structure. The artificial SEI film reduced the critical dendrite growth length, inhibited Li dendrite growth, and stabilized the electrochemical cycle. MXene-BN/Cu exhibited highly reversible cycling properties during lithium metal deposition with a high Coulombic efficiency of ∼ 98.0% over 500 cycles. Furthermore, LiBH4 was produced during the Li deposition process. This study presents a promising strategy for developing dendrite-free Li anodes for use in lithium metal batteries.
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Affiliation(s)
- Chang Liu
- Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education), Renewable Energy Conversion and Storage Center, College of Chemistry, Nankai University, Tianjin 300071, P. R. China
| | - Zhaoxia Yuan
- Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education), Renewable Energy Conversion and Storage Center, College of Chemistry, Nankai University, Tianjin 300071, P. R. China
| | - Kai Chen
- Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education), Renewable Energy Conversion and Storage Center, College of Chemistry, Nankai University, Tianjin 300071, P. R. China
| | - Yaru Jiang
- Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education), Renewable Energy Conversion and Storage Center, College of Chemistry, Nankai University, Tianjin 300071, P. R. China
| | - Mengyuan Yue
- Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education), Renewable Energy Conversion and Storage Center, College of Chemistry, Nankai University, Tianjin 300071, P. R. China
| | - Kaizheng Dong
- Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education), Renewable Energy Conversion and Storage Center, College of Chemistry, Nankai University, Tianjin 300071, P. R. China
| | - Yafei Liu
- Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education), Renewable Energy Conversion and Storage Center, College of Chemistry, Nankai University, Tianjin 300071, P. R. China
| | - Yusang Guo
- Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education), Renewable Energy Conversion and Storage Center, College of Chemistry, Nankai University, Tianjin 300071, P. R. China
| | - Yijing Wang
- Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education), Renewable Energy Conversion and Storage Center, College of Chemistry, Nankai University, Tianjin 300071, P. R. China
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Guan J, Cheng L, Fang Y. Introduction of Nanoscale Si 3N 4 to Improve the Dielectric Thermal Stability of a Si 3N 4/P(VDF-HFP) Composite Film. Polymers (Basel) 2023; 15:4264. [PMID: 37959943 PMCID: PMC10648552 DOI: 10.3390/polym15214264] [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: 09/07/2023] [Revised: 10/08/2023] [Accepted: 10/18/2023] [Indexed: 11/15/2023] Open
Abstract
In order to improve the dielectric thermal stability of polyvinylidene fluoride (PVDF)-based film, nano silicon nitride (Si3N4) was introduced, and hence the energy storage performance was improved. The introduction of nano Si3N4 fillers will induce a phase transition of P(VDF-HFP) from polar β to nonpolar α, which leads to the improved energy storage property. As such, the discharging energy density of Si3N4/P(VDF-HFP) composite films increased with the amount of doped Si3N4. After incorporating 10wt% Si3N4 in Si3N4/P(VDF-HFP) films, the discharging density increased to 1.2 J/cm3 under a relatively low electric field of 100 MV/m. Compared with a pure P(VDF-HFP) film, both the discharging energy density and thermal dielectric relaxor temperature of Si3N4/P(VDF-HFP) increased. The working temperature increased from 80 °C to 120 °C, which is significant for ensuring its adaptability in high-temperature energy storage areas. Thus, this result indicates that Si3N4 is a key filler that can improve the thermal stability of PVDF-based energy storage polymer films and may provide a reference for high-temperature capacitor materials.
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Affiliation(s)
| | - Laifei Cheng
- Science and Technology on Thermostructural Composite Materials Laboratory, Northwestern Polytechnical University, Xi’an 710072, China; (J.G.); (Y.F.)
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