锂离子电池固态电解质的研究进展

The progress of solid electrolyte in solid-state lithium ion battery

固态锂离子电池具有安全性能高、能量密度大、工作温区广等优点,是锂离子电池领域的研究热点。固体电解质的研究是固态锂离子电池实现应用的先决条件,目前国内外研究较多的有晶态的LISICON结构、钙钛矿结构、石榴石结构电解质和非晶态的氧化物、硫化物、氮氧化物电解质。概述了锂离子电池固态电解质的研究进展,对各种电解质的发现过程、晶体结构、电导率等性能进行了详细的介绍。

Solid-state lithium ion battery has become an important focus due to higher safety, higher energy density and wider operating temperature compared to the commercial lithium ion battery with liquid organ- ic electrolyte. Research and development of solid electrolyte are the keys for the successful market pene- tration of solid state lithium ion battery. Nowadays, two categories materials were widely studied in last decade ,crystal materials included LISICON, Perovskite and Garnet type Li ion conductors, glasses state materials included oxides electrolyte system, sulfide electrolyte system and LiPON electrolyte system. The research progresses of solid electrolyte in lithium ion battery were summarized, and introduced the find- ing, crystal structure, and conductivity of electrolytes.