高等学校化学学报

• 综合评述 •    

低温等离子体在锂离子电池材料中的应用

石颖1,2, 胡广剑1,3, 吴敏杰1,3, 李峰1,2,3()   

  1. 1.沈阳材料科学国家研究中心, 中国科学院金属研究所, 沈阳 110016
    2.中国科学技术大学材料科学与工程学院, 沈阳 110016
    3.沈阳国科新能源材料与器件产业技术研究院有限公司, 沈阳 110016
  • 收稿日期:2020-09-11 出版日期:2020-12-25 发布日期:2020-12-25
  • 通讯作者: 李峰 E-mail:fli@imr.ac.cn
  • 基金资助:
    国家自然科学基金(批准号(51902316);51927803)资助

Applications of Low Temperature Plasma for the Materials in Li-ion Batteries

SHI Ying1,2, HU Guangjian1,3, WU Minjie1,3, LI Feng1,2,3()   

  1. 1.Shenyang National Laboratory for Materials Science,Institute of Metal Research,Chinese Academy of Sciences,Shenyang 110016,China
    2.School of Materials Science and Engineering,University of Science and Technology of China,Shenyang 110016,China
    3.Shenyang Industrial Technology Research Institute of Energy Materials and Devices,Shenyang 110016,China
  • Received:2020-09-11 Online:2020-12-25 Published:2020-12-25
  • Contact: LI Feng E-mail:fli@imr.ac.cn
  • Supported by:
    ? Supported by the National Natural Science Foundation of China(51902316)

摘要:

综述了低温等离子体技术的基本原理、 常用方法及其在锂离子电池材料领域中的研究进展, 重点评述了等离子体技术在锂离子电池正极、 负极、 隔膜及固态电解质等重要组分中的材料制备与表面改性方面的主要研究结果和应用优势, 并对其所面临的挑战和未来的应用方向进行了展望.

关键词: 低温等离子体, 锂离子电池, 材料制备, 表面改性

Abstract:

With the increasing demands for the Li-ion batteries with high energy and power density, high safety, and long cycle life, the development of high-performance materials through proper structure design and surface functionalization is of great importance. To realize the high performance of materials for Li-ion batteries, advanced processing methods with high efficiency, low cost and simplicity are quite necessary, especially for material synthesis and surface modification. As a simple, fast, high efficiency, and eco-friendly processing technology in the synthesis of nanomaterials, low temperature plasma has been widely explored in the development of materials in Li-ion batteries during recent years and shown great potential for practical applications. This paper reviews the basic principle and common technologies of low temperature plasma, as well as the progress of the applications of plasma in the Li-ion batteries. The applications of low temperature plasma for the material synthesis and surface modification of the essential components of Li-ion batteries, including anodes, cathodes, separators and solid-state electrolytes, are mainly focused on. For the material synthesis, plasma can accelerate the crystal growth, reduce the reaction temperature, and obtain uniform nanostructure by avoiding agglomeration during the growth of particles. Assisting deposition of films and making dense solid-state electrolytes with less contamination are also the merits of low temperature plasma in material synthesis. For the surface modification, plasma can improve the surface properties by in situ coating, etching, and doping with proper atmosphere and functionalize the surface by graft polymerization and the formation of radicals or functional groups. At the same time, surface cleanliness, polarity and wettability can also be changed by plasma processing. These unique characteristics of plasma and the advantages on the applications for Li-ion batteries are thoroughly discussed in this review. In addition, the challenges and directions for future research of the plasma are also prospected.

Key words: Low temperature plasma, Li-ion battery, Material synthesis, Surface modification

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