全固态锂离子电池关键材料研究进展

全固态锂离子电池采用固态电解质替代传统有机液态电解液，有望从根本上解决电池安全性问题，是电动汽车和规模化储能理想的化学电源。为了实现大容量化和长寿命，从而推进全固态锂离子电池的实用化，电池关键材料的开发和性能的优化刻不容缓，主要包括制备高室温电导率和电化学稳定性的固态电解质以及适用于全固态锂离子电池的高能量电极材料、改善电极/固态电解质界面相容性。本文以全固态锂离子电池关键材料为出发点，综述了不同类型的固态电解质和正负极材料性能特征以及电极/电解质界面性能的调控和优化方法等，阐述了未来全固态锂离子电池关键材料的发展方向以及界面问题的解决思路，为探索全固态锂离子电池产业化前景奠定基础。

A review of key materials for all-solid-state lithium ion batteries

All-solid-state lithium ion batteries utilize solid state electrolytes to overcome the safety issues of liquid electrolytes, becoming the most promoting candidate for electric vehicle and large-scale stationary-type distributed power sources. There is an urgent demand for all solid state lithium ion batteries with high energy and power densities and longevity. Materials hold the key to fundamental and practical advances in all-solid-state lithium ion batteries. Most studies have been focused on exploration and preparation of solid electrolytes with high ambient temperature ion conductivity as well as cathode and anode with high energy density, and optimization of interfacial compatibility between electrode and solid electrolyte. This paper is a comprehensive review of the key materials for all-solid-state lithium ion batteries: Various important advances of new solid electrolyte, cathode and anode made in research and practical application, the modification methods to improve the interfacial behavior, and the further development of materials and interfacial issues, which lay a foundation for the analysis of commercial applications prospect of all-solid-state lithium ion batteries.