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Liu M, Xu W, Liu S, Liu B, Gao Y, Wang B. Directional Polarization of a Ferroelectric Intermediate Layer Inspires a Built-In Field in Si Anodes to Regulate Li + Transport Behaviors in Particles and Electrolyte. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2024; 11:e2402915. [PMID: 38641884 PMCID: PMC11220674 DOI: 10.1002/advs.202402915] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/20/2024] [Indexed: 04/21/2024]
Abstract
The silicon (Si) anode is prone to forming a high electric field gradient and concentration gradient on the electrode surface under high-rate conditions, which may destroy the surface structure and decrease cycling stability. In this study, a ferroelectric (BaTiO3) interlayer and field polarization treatment are introduced to set up a built-in field, which optimizes the transport mechanisms of Li+ in solid and liquid phases and thus enhances the rate performance and cycling stability of Si anodes. Also, a fast discharging and slow charging phenomenon is observed in a half-cell with a high reversible capacity of 1500.8 mAh g-1 when controlling the polarization direction of the interlayer, which means a fast charging and slow discharging property in a full battery and thus is valuable for potential applications in commercial batteries. Simulation results demonstrated that the built-in field plays a key role in regulating the Li+ concentration distribution in the electrolyte and the Li+ diffusion behavior inside particles, leading to more uniform Li+ diffusion from local high-concentration sites to surrounding regions. The assembled lithium-ion battery with a BaTiO3 interlayer exhibited superior electrochemical performance and long-term cycling life (915.6 mAh g-1 after 300 cycles at a high current density of 4.2 A g-1). The significance of this research lies in exploring a new approach to improve the performance of lithium-ion batteries and providing new ideas and pathways for addressing the challenges faced by Si-based anodes.
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Affiliation(s)
- Ming Liu
- CAS Key Laboratory of Nanosystem and Hierarchical FabricationNational Center for Nanoscience and TechnologyBeijing100190P. R. China
- University of Chinese Academy of SciencesBeijing100039P. R. China
| | - Wenqiang Xu
- CAS Key Laboratory of Nanosystem and Hierarchical FabricationNational Center for Nanoscience and TechnologyBeijing100190P. R. China
- State Key Laboratory for Advanced Metals and MaterialsSchool of Materials Science and EngineeringUniversity of Science and Technology BeijingBeijing100083P. R. China
| | - Shigang Liu
- CAS Key Laboratory of Nanosystem and Hierarchical FabricationNational Center for Nanoscience and TechnologyBeijing100190P. R. China
- Key Laboratory of Bio‐based Material Science and Technology of Ministry of Education Engineering Research Center of Advanced Wooden Materials of Ministry of EducationCollege of Material Science and EngineeringNortheast Forestry UniversityHarbin150040P. R. China
| | - Bowen Liu
- CAS Key Laboratory of Nanosystem and Hierarchical FabricationNational Center for Nanoscience and TechnologyBeijing100190P. R. China
- University of Chinese Academy of SciencesBeijing100039P. R. China
| | - Yang Gao
- CAS Key Laboratory of Nanosystem and Hierarchical FabricationNational Center for Nanoscience and TechnologyBeijing100190P. R. China
- University of Chinese Academy of SciencesBeijing100039P. R. China
| | - Bin Wang
- CAS Key Laboratory of Nanosystem and Hierarchical FabricationNational Center for Nanoscience and TechnologyBeijing100190P. R. China
- University of Chinese Academy of SciencesBeijing100039P. R. China
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Fang T, Liu H, Luo X, Sun M, Peng W, Li Y, Zhang F, Fan X. Enabling Uniform and Stable Lithium-Ion Diffusion at the Ultrathin Artificial Solid-Electrolyte Interface in Siloxene Anodes. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024; 20:e2309600. [PMID: 38403846 DOI: 10.1002/smll.202309600] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/23/2023] [Revised: 01/02/2024] [Indexed: 02/27/2024]
Abstract
Constructing a stable and robust solid electrolyte interphase (SEI) has a decisive influence on the charge/discharge kinetics of lithium-ion batteries (LIBs), especially for silicon-based anodes which generate repeated destruction and regeneration of unstable SEI films. Herein, a facile way is proposed to fabricate an artificial SEI layer composed of lithiophilic chitosan on the surface of two-dimensional siloxene, which has aroused wide attention as an advanced anode for LIBs due to its special characteristics. The optimized chitosan-modified siloxene anode exhibits an excellent reversible cyclic stability of about 672.6 mAh g-1 at a current density of 1000 mA g-1 after 200 cycles and 139.9 mAh g-1 at 6000 mA g-1 for 1200 cycles. Further investigation shows that a stable and LiF-rich SEI film is formed and can effectively adhere to the surface during cycling, redistribute lithium-ion flux, and enable a relatively homogenous lithium-ion diffusion. This work provides constructive guidance for interface engineering strategy of nano-structured silicon anodes.
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Affiliation(s)
- Tiantian Fang
- School of Chemical Engineering and Technology, State Key Laboratory of Chemical Engineering, Collaborative Innovation Center of Chemical Science and Engineering, Tianjin University, Tianjin, 300072, China
| | - Huibin Liu
- School of Chemical Engineering and Technology, State Key Laboratory of Chemical Engineering, Collaborative Innovation Center of Chemical Science and Engineering, Tianjin University, Tianjin, 300072, China
| | - Xinyu Luo
- School of Chemical Engineering and Technology, State Key Laboratory of Chemical Engineering, Collaborative Innovation Center of Chemical Science and Engineering, Tianjin University, Tianjin, 300072, China
| | - Mengru Sun
- School of Chemical Engineering and Technology, State Key Laboratory of Chemical Engineering, Collaborative Innovation Center of Chemical Science and Engineering, Tianjin University, Tianjin, 300072, China
| | - WenChao Peng
- School of Chemical Engineering and Technology, State Key Laboratory of Chemical Engineering, Collaborative Innovation Center of Chemical Science and Engineering, Tianjin University, Tianjin, 300072, China
| | - Yang Li
- School of Chemical Engineering and Technology, State Key Laboratory of Chemical Engineering, Collaborative Innovation Center of Chemical Science and Engineering, Tianjin University, Tianjin, 300072, China
| | - Fengbao Zhang
- School of Chemical Engineering and Technology, State Key Laboratory of Chemical Engineering, Collaborative Innovation Center of Chemical Science and Engineering, Tianjin University, Tianjin, 300072, China
| | - Xiaobin Fan
- School of Chemical Engineering and Technology, State Key Laboratory of Chemical Engineering, Collaborative Innovation Center of Chemical Science and Engineering, Tianjin University, Tianjin, 300072, China
- Haihe Laboratory of Sustainable Chemical Transformations, Tianjin, 300192, China
- Institute of Shaoxing, Tianjin University, Zhejiang, 312300, China
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3
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Development of design strategies for conjugated polymer binders in lithium-ion batteries. Polym J 2022. [DOI: 10.1038/s41428-022-00708-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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4
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Yu Z, Zhou L, Tong J, Guan T, Cheng Y. Improving Electrochemical Performance of Thick Silicon Film Anodes with Implanted Solid Lithium Source Electrolyte. J Phys Chem Lett 2022; 13:8725-8732. [PMID: 36094819 DOI: 10.1021/acs.jpclett.2c02090] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Silicon is a potential next-generation anode material for a lithium-ion battery. However, the large-scale application of silicon is restricted by poor electrical conductivity, large volume change, and high irreversible capacity during the charge/discharge process. Here, we proposed a simple strategy by preimplanting a solid lithium source electrolyte (Li2CO3 and Li2O) into Si thick film to improve the electrochemical properties of Si materials. The implanted solid lithium source electrolyte participates in and induces the formation of SEI not only on the top surface of Si film but also in the interface of Si particles. The thick Si film with the implanted solid lithium electrolyte (a thickness of ∼10 μm) delivers above 2000 mAh g-1 specific capacity, >92% initial Coulombic efficiency, and ∼87% capacity retention over 150 cycles at 400 mA g-1. The present work sheds light on the design of high capacity and long cycle life electrode materials for other batteries.
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Affiliation(s)
- Zhaozhe Yu
- Guangxi Key Laboratory of Manufacturing Systems and Advanced Manufacturing Technology, Guilin University of Electronic Technology, Guilin 541004, PR China
- International Collaborative Laboratory of 2D Materials for Optoelectronics Science and Technology of Ministry of Education, Institute of Microscale Optoelectronics, Shenzhen University, Shenzhen 518060, China
| | - Lihang Zhou
- Guangxi Key Laboratory of Manufacturing Systems and Advanced Manufacturing Technology, Guilin University of Electronic Technology, Guilin 541004, PR China
| | - Jiali Tong
- Guangxi Key Laboratory of Manufacturing Systems and Advanced Manufacturing Technology, Guilin University of Electronic Technology, Guilin 541004, PR China
| | - Tingfeng Guan
- Guangxi Key Laboratory of Manufacturing Systems and Advanced Manufacturing Technology, Guilin University of Electronic Technology, Guilin 541004, PR China
| | - Yan Cheng
- Guangxi Key Laboratory of Manufacturing Systems and Advanced Manufacturing Technology, Guilin University of Electronic Technology, Guilin 541004, PR China
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5
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Constructing an artificial boundary to regulate solid electrolyte interface formation and synergistically enhance stability of nano-Si anodes. J Colloid Interface Sci 2022; 619:158-167. [DOI: 10.1016/j.jcis.2022.03.111] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2022] [Revised: 03/20/2022] [Accepted: 03/24/2022] [Indexed: 11/24/2022]
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6
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Pan H, Xu Z, Wei Z, Liu X, Xu M, Zong C, Li W, Cui G, Cao L, Wang Q. Synergistic Double Cross-Linked Dynamic Network of Epoxidized Natural Rubber/Glycinamide Modified Polyacrylic Acid for Silicon Anode in Lithium Ion Battery: High Peel Strength and Super Cycle Stability. ACS APPLIED MATERIALS & INTERFACES 2022; 14:33315-33327. [PMID: 35835451 DOI: 10.1021/acsami.2c08038] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Silicon (Si), a high-capacity lithium-ion battery anode material, has aroused wide attention. Its further practical application has been limited by its huge volume change during the cycle. To reduce this defect, the double cross-linked product of glycinamide hydrochloride modified poly(acrylic acid) (PAG) and epoxidized natural rubber (ENR) was developed as a water-based binder to obtain sufficient elasticity and a sufficiently strong adhesive force. Due to the double cross-linked structures in the system, the binder was enabled to effectively disperse and transfer the stress generated by the volume expansion of the Si particles and keep the integrity of the electrode during the cycle, thus obtaining excellent cycle performance. When the current density was 1 A g-1, PE55 (PAG: ENR = 1:1 cross-linked polymer) electrode still achieved a specific capacity of 2322.2 mAh g-1 after 100 cycles of constant current charge and discharge, and PE55 binder exhibited excellent bonding properties (4.45 N) and mechanical properties (stress: 5.51 MPa, strain: 87.4%). The comparison of poly(acrylic acid) (PAA) electrodes suggests that the introduction of elastic polymer and the construction of double cross-linked structures can increase the stability of Si anodes.
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Affiliation(s)
- Hongwei Pan
- Qingdao University of Science and Technology, Qingdao 266045, China
| | - Zhengshuai Xu
- Qingdao University of Science and Technology, Qingdao 266045, China
| | - Zhaoyang Wei
- Qingdao University of Science and Technology, Qingdao 266045, China
| | - Xin Liu
- Qingdao University of Science and Technology, Qingdao 266045, China
| | - Minghan Xu
- Qingdao University of Science and Technology, Qingdao 266045, China
| | - Chengzhong Zong
- Qingdao University of Science and Technology, Qingdao 266045, China
| | - Weijie Li
- Institute for Superconducting and Electronic Materials, University of Wollongong. Wollongong, New South Wales 2522 Australia
| | - Guanglei Cui
- Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao 266101, P. R. China
| | - Lan Cao
- Qingdao University of Science and Technology, Qingdao 266045, China
| | - Qingfu Wang
- Qingdao University of Science and Technology, Qingdao 266045, China
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7
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Wang Z, Hao H, Luo X, Jing N, Wang M, Yang L, Chen J, Wang G, Wang G. Decreasing Deformation and Heat as Well as Intensifying Ionic Transport of Si Using a Negative Thermal Expansion Ceramic with High Ionic Conductivity. Ind Eng Chem Res 2022. [DOI: 10.1021/acs.iecr.2c00567] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Zhiqiang Wang
- School of Chemical Engineering, Sichuan University, Chengdu 610065, China
| | - Huming Hao
- School of Chemical Engineering, Sichuan University, Chengdu 610065, China
| | - Xuejia Luo
- School of Chemical Engineering, Sichuan University, Chengdu 610065, China
| | - Nana Jing
- School of Chemical Engineering, Sichuan University, Chengdu 610065, China
| | - Mengyao Wang
- School of Chemical Engineering, Sichuan University, Chengdu 610065, China
| | - Liangxuan Yang
- School of Chemical Engineering, Sichuan University, Chengdu 610065, China
| | - Jianyue Chen
- School of Chemical Engineering, Sichuan University, Chengdu 610065, China
| | - Guan Wang
- School of Chemical Engineering, Sichuan University, Chengdu 610065, China
| | - Guixin Wang
- School of Chemical Engineering, Sichuan University, Chengdu 610065, China
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8
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Wang C, Li Y, Cao F, Zhang Y, Xia X, Zhang L. Employing Ni-Embedded Porous Graphitic Carbon Fibers for High-Efficiency Lithium-Sulfur Batteries. ACS APPLIED MATERIALS & INTERFACES 2022; 14:10457-10466. [PMID: 35175738 DOI: 10.1021/acsami.1c24755] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
The rational electrode design is one of the most important ways to enhance the electrochemical properties of lithium-sulfur batteries (LSBs). In this contribution, we use Ni-embedded porous graphitic carbon fiber (PGCF@Ni) as the scaffold to construct a novel cathode and anode for LSBs. With the help of elaborate surface engineering, the constructed solid electrolyte interface (SEI)@Li/PGCF@Ni anodes can effectively restrain the growth of lithium dendrites during the cycle, exhibiting an ultralow overpotential of ∼10 mV for 2000 h at 1 mA cm-2/1 mA h cm-2. The underlying mechanism is further investigated by COMSOL Multiphysics simulations. Additionally, the PGCF@Ni/S cathode fabricated by the molten sulfurizing method manifests superior rate performance and stability. Ultimately, the assembled SEI@Li/PGCF@Ni||PGCF@Ni/S full battery exhibits prominent electrochemical property with a high capacity retention of about 77.9% after 600 cycles at 1 C. Such success at the performance improvement in LSBs may open up avenues toward other rational designs of high-quality electrodes in electrochemical energy storage.
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Affiliation(s)
- Changhao Wang
- Yangtze Delta Region Institute (Huzhou) & Institute of Fundamental and Frontier Science, University of Electronic Science and Technology of China, Huzhou 313000, P. R. China
- State Key Laboratory of Silicon Materials, Key Laboratory of Advanced Materials and Applications for Batteries of Zhejiang Province, School of Materials Science and Engineering, Zhejiang University, Hangzhou 310027, P. R. China
| | - Yahao Li
- State Key Laboratory of Silicon Materials, Key Laboratory of Advanced Materials and Applications for Batteries of Zhejiang Province, School of Materials Science and Engineering, Zhejiang University, Hangzhou 310027, P. R. China
- Hubei Provincial Collaborative Innovation Center for New Energy Microgrid, College of Electrical Engineering & New Energy, China Three Gorges University, Yichang, Hubei 443002, P. R. China
| | - Feng Cao
- Department of Engineering Technology, Huzhou College, Huzhou 313000, China
| | - Yongqi Zhang
- Yangtze Delta Region Institute (Huzhou) & Institute of Fundamental and Frontier Science, University of Electronic Science and Technology of China, Huzhou 313000, P. R. China
- State Key Laboratory of Silicon Materials, Key Laboratory of Advanced Materials and Applications for Batteries of Zhejiang Province, School of Materials Science and Engineering, Zhejiang University, Hangzhou 310027, P. R. China
| | - Xinhui Xia
- Yangtze Delta Region Institute (Huzhou) & Institute of Fundamental and Frontier Science, University of Electronic Science and Technology of China, Huzhou 313000, P. R. China
- State Key Laboratory of Photocatalysis on Energy and Environment, Fuzhou University, Fuzhou 350116, P. R. China
| | - Lingjie Zhang
- State Key Laboratory of Silicon Materials, Key Laboratory of Advanced Materials and Applications for Batteries of Zhejiang Province, School of Materials Science and Engineering, Zhejiang University, Hangzhou 310027, P. R. China
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9
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Li T, Dong H, Shi Z, Yue H, Yin Y, Li X, Zhang H, Wu X, Li B, Yang S. Composite Nanoarchitectonics with CoS 2 Nanoparticles Embedded in Graphene Sheets for an Anode for Lithium-Ion Batteries. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 12:724. [PMID: 35215052 PMCID: PMC8875400 DOI: 10.3390/nano12040724] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/19/2021] [Revised: 01/13/2022] [Accepted: 01/20/2022] [Indexed: 12/10/2022]
Abstract
Cobalt sulfides are attractive as intriguing candidates for anodes in Lithium-ion batteries (LIBs) due to their unique chemical and physical properties. In this work, CoS2@rGO (CSG) was synthesized by a hydrothermal method. TEM showed that CoS2 nanoparticles have an average particle size of 40 nm and were uniformly embedded in the surface of rGO. The battery electrode was prepared with this nanocomposite material and the charge and discharge performance was tested. The specific capacity, rate, and cycle stability of the battery were systematically analyzed. In situ XRD was used to study the electrochemical transformation mechanism of the material. The test results shows that the first discharge specific capacity of this nanocomposite reaches 1176.1 mAhg-1, and the specific capacity retention rate is 61.5% after 100 cycles, which was 47.5% higher than that of the pure CoS2 nanomaterial. When the rate changes from 5.0 C to 0.2 C, the charge-discharge specific capacity of the nanocomposite material can almost be restored to the initial capacity. The above results show that the CSG nanocomposites as a lithium-ion battery anode electrode has a high reversible specific capacity, better rate performance, and excellent cycle performance.
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Affiliation(s)
- Tongjun Li
- School of Physics, Henan Normal University, Xinxiang 453007, China; (T.L.); (Z.S.); (X.L.); (H.Z.)
- School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang 453007, China; (H.Y.); (Y.Y.)
- National and Local Joint Engineering Laboratory of Motive Power and Key Materials, Henan Normal University, Xinxiang 453007, China
- Collaborative Innovation Center of Henan Province for Motive Power and Key Materials, Henan Normal University, Xinxiang 453007, China
| | - Hongyu Dong
- School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang 453007, China; (H.Y.); (Y.Y.)
- National and Local Joint Engineering Laboratory of Motive Power and Key Materials, Henan Normal University, Xinxiang 453007, China
- Collaborative Innovation Center of Henan Province for Motive Power and Key Materials, Henan Normal University, Xinxiang 453007, China
| | - Zhenpu Shi
- School of Physics, Henan Normal University, Xinxiang 453007, China; (T.L.); (Z.S.); (X.L.); (H.Z.)
- School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang 453007, China; (H.Y.); (Y.Y.)
| | - Hongyun Yue
- School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang 453007, China; (H.Y.); (Y.Y.)
- National and Local Joint Engineering Laboratory of Motive Power and Key Materials, Henan Normal University, Xinxiang 453007, China
- Collaborative Innovation Center of Henan Province for Motive Power and Key Materials, Henan Normal University, Xinxiang 453007, China
| | - Yanhong Yin
- School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang 453007, China; (H.Y.); (Y.Y.)
- National and Local Joint Engineering Laboratory of Motive Power and Key Materials, Henan Normal University, Xinxiang 453007, China
| | - Xiangnan Li
- School of Physics, Henan Normal University, Xinxiang 453007, China; (T.L.); (Z.S.); (X.L.); (H.Z.)
- School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang 453007, China; (H.Y.); (Y.Y.)
| | - Huishuang Zhang
- School of Physics, Henan Normal University, Xinxiang 453007, China; (T.L.); (Z.S.); (X.L.); (H.Z.)
- School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang 453007, China; (H.Y.); (Y.Y.)
- Collaborative Innovation Center of Henan Province for Motive Power and Key Materials, Henan Normal University, Xinxiang 453007, China
| | - Xianli Wu
- College of Chemistry, Zhengzhou University, Zhengzhou 453000, China; (X.W.); (B.L.)
| | - Baojun Li
- College of Chemistry, Zhengzhou University, Zhengzhou 453000, China; (X.W.); (B.L.)
| | - Shuting Yang
- School of Physics, Henan Normal University, Xinxiang 453007, China; (T.L.); (Z.S.); (X.L.); (H.Z.)
- School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang 453007, China; (H.Y.); (Y.Y.)
- National and Local Joint Engineering Laboratory of Motive Power and Key Materials, Henan Normal University, Xinxiang 453007, China
- Collaborative Innovation Center of Henan Province for Motive Power and Key Materials, Henan Normal University, Xinxiang 453007, China
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10
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Yeom SJ, Wi TU, Ko S, Park C, Bayramova K, Jin S, Lee SW, Lee HW. Nitrogen Plasma-Assisted Functionalization of Silicon/Graphite Anodes to Enable Fast Kinetics. ACS APPLIED MATERIALS & INTERFACES 2022; 14:5237-5246. [PMID: 34981917 DOI: 10.1021/acsami.1c19879] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
The practical use of silicon anodes is interfered by the following key factors: volume expansion, slow kinetics, and low electrical and ionic conductivities. Many studies have focused on surface engineering from the particle to electrode level to achieve stability and energy density. Herein, simple nitrogen gas plasma is introduced as a surface treatment method for silicon-based electrodes to avoid the problems of material synthesis-based functionalizations (e.g., high cost, time consuming, and low quality). The introduction of activated nitrogen gas on electrode surfaces changes the binding energy and resistance of silicon, increasing the reversibility of the charge/discharge reaction of silicon-based anodes. In addition, such doping and dehydrogenation of the electrode surface improve reaction kinetics to 876 mA h g-1 specific capacity at 8.5 A g-1 in silicon/graphite anodes even with a high silicon content of 40%. The proposed strategy, through nitrogen plasma, offers advantages for direct functionalization on electrode surfaces by a simple method.
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Affiliation(s)
- Su Jeong Yeom
- Department of Energy Engineering, School of Energy and Chemical Engineering, Ulsan National Institute of Science and Technology (UNIST), Ulsan 44919, Republic of Korea
| | - Tae-Ung Wi
- Department of Energy Engineering, School of Energy and Chemical Engineering, Ulsan National Institute of Science and Technology (UNIST), Ulsan 44919, Republic of Korea
| | - Sangho Ko
- Department of Energy Engineering, School of Energy and Chemical Engineering, Ulsan National Institute of Science and Technology (UNIST), Ulsan 44919, Republic of Korea
| | - Changhyun Park
- Department of Energy Engineering, School of Energy and Chemical Engineering, Ulsan National Institute of Science and Technology (UNIST), Ulsan 44919, Republic of Korea
| | - Khayala Bayramova
- Department of Energy Engineering, School of Energy and Chemical Engineering, Ulsan National Institute of Science and Technology (UNIST), Ulsan 44919, Republic of Korea
| | - Sunghwan Jin
- Department of Energy Engineering, School of Energy and Chemical Engineering, Ulsan National Institute of Science and Technology (UNIST), Ulsan 44919, Republic of Korea
| | - Seok Woo Lee
- School of Electrical and Electronic Engineering, Nanyang Technological University, Singapore 639798, Singapore
| | - Hyun-Wook Lee
- Department of Energy Engineering, School of Energy and Chemical Engineering, Ulsan National Institute of Science and Technology (UNIST), Ulsan 44919, Republic of Korea
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11
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Qu S, Wu W, Wu Y, Zhuang Y, Lin J, Wang L, Wei Q, Xie Q, Peng DL. Sputtering Coating of Lithium Fluoride Film on Lithium Cobalt Oxide Electrodes for Reducing the Polarization of Lithium-Ion Batteries. NANOMATERIALS (BASEL, SWITZERLAND) 2021; 11:3393. [PMID: 34947742 PMCID: PMC8708573 DOI: 10.3390/nano11123393] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/02/2021] [Revised: 11/29/2021] [Accepted: 12/10/2021] [Indexed: 11/25/2022]
Abstract
Lithium cobalt oxide (LCO) is the most widely used cathode materials in electronic devices due to the high working potential and dense tap density, but the performance is limited by the unstable interfaces at high potential. Herein, LiF thin film is sputtered on the surface of LCO electrodes for enhancing the electrochemical performance and reducing the voltage polarization. The polarization components are discussed and quantified by analyzing the relationship between electrochemical polarization and charger transfer resistance, as well as that between concentration polarization and Li-ion diffusion coefficients. In addition, the decreased charge transfer resistance, increased lithium-ion diffusion coefficients, and stabilized crystal structure of LiF-coated LCO are confirmed by various electrochemical tests and in-situ XRD experiments. Compared to that of pristine LCO, the capacity and cycling performance of LiF-coated LCO is improved, and the overpotential is reduced upon cycling. This work provides reference for quantifying the various polarization components, and the strategy of coating LiF film could be applied in developing other analogous cathode materials.
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Affiliation(s)
| | | | | | | | - Jie Lin
- College of Materials, State Key Laboratory for Physical Chemistry of Solid Surfaces, Fujian Key Laboratory of Materials Genome, and Collaborative Innovation Center of Chemistry for Energy Materials, Xiamen University, Xiamen 361005, China; (S.Q.); (W.W.); (Y.W.); (Y.Z.); (Q.W.); (D.-L.P.)
| | - Laisen Wang
- College of Materials, State Key Laboratory for Physical Chemistry of Solid Surfaces, Fujian Key Laboratory of Materials Genome, and Collaborative Innovation Center of Chemistry for Energy Materials, Xiamen University, Xiamen 361005, China; (S.Q.); (W.W.); (Y.W.); (Y.Z.); (Q.W.); (D.-L.P.)
| | | | - Qingshui Xie
- College of Materials, State Key Laboratory for Physical Chemistry of Solid Surfaces, Fujian Key Laboratory of Materials Genome, and Collaborative Innovation Center of Chemistry for Energy Materials, Xiamen University, Xiamen 361005, China; (S.Q.); (W.W.); (Y.W.); (Y.Z.); (Q.W.); (D.-L.P.)
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12
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A low-cost and eco-friendly network binder coupling stiffness and softness for high-performance Li-ion batteries. Electrochim Acta 2021. [DOI: 10.1016/j.electacta.2021.138491] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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13
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Hu H, Yang Y, Jiang X, Wang J, Cao D, He L, Chen W, Song YF. Double-Shelled Hollow SiO 2 @N-C Nanofiber Boosts the Lithium Storage Performance of [PMo 12 O 40 ] 3. Chemistry 2021; 27:13367-13375. [PMID: 34319625 DOI: 10.1002/chem.202101638] [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: 05/09/2021] [Indexed: 11/08/2022]
Abstract
Polyoxometalates (POMs)-based materials, with high theoretical capacities and abundant reversible multi-electron redox properties, are considered as promising candidates in lithium-ion storage. However, the poor electronic conductivity, low specific surface area and high solubility in the electrolyte limited their practical applications. Herein, a double-shelled hollow PMo12 -SiO2 @N-C nanofiber (PMo12 -SiO2 @N-C, where PMo12 is [PMo12 O40 ]3- , N-C is nitrogen-doped carbon) was fabricated for the first time by combining coaxial electrospinning technique, thermal treatment and electrostatic adsorption. As an anode material for LIBs, the PMo12 -SiO2 @N-C delivered an excellent specific capacity of 1641 mA h g-1 after 1000 cycles under 2 A g-1 . The excellent electrochemical performance benefited from the unique double-shelled hollow structure of the material, in which the outermost N-C shell cannot only hinder the agglomeration of PMo12 , but also improve its electronic conductivity. The SiO2 inner shell can efficiently avoid the loss of active components. The hollow structure can buffer the volume expansion and accelerate Li+ diffusion during lithiation/delithiation process. Moreover, PMo12 can greatly reduce charge-resistance and facilitate electron transfer of the entire composites, as evidenced by the EIS kinetics study and lithium-ion diffusion analysis. This work paves the way for the fabrication of novel POM-based LIBs anode materials with excellent lithium storage performance.
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Affiliation(s)
- Hanbin Hu
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing, 100029, P. R. China
| | - Yixin Yang
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing, 100029, P. R. China
| | - Xiao Jiang
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing, 100029, P. R. China
| | - Jiaxin Wang
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing, 100029, P. R. China
| | - Dongwei Cao
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing, 100029, P. R. China
| | - Lei He
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing, 100029, P. R. China
| | - Wei Chen
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing, 100029, P. R. China
| | - Yu-Fei Song
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing, 100029, P. R. China
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A facile synthesis of phosphorus doped Si/SiO2/C with high coulombic efficiency and good stability as an anode material for lithium ion batteries. Electrochim Acta 2021. [DOI: 10.1016/j.electacta.2021.138385] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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