摘要
目前商用的含易燃有机溶剂的液态电解质锂离子电池的安全隐患,随着电池容量的增大而增高。以固体电解质代替有机电解液开发全固态锂离子电池是提升电池安全性能的有力途径。全固态锂离子电池在理论上具有优异的循环特性和高的能量密度,在大型储能系统应用中具有广泛前景。如何提升电解质的离子电导率是发展全固态电池需要解决的关键性问题之一。本文就目前研究较为广泛的、离子电导率较高的硫代快离子导体(thio-LISICON)电解质的组分、结构、制备工艺和性能特征等做一个综合的分析和小结,重点分析并归纳了提高材料性能的作用机理,为后续对固体电解质材料的深入研究提供参考。
The safety issues are more serious for current commercial organic liquid electrolytes because of the increasing battery size. One of the feasible ways to improve the safety is to develop solid electrolyte （SE） for all？solid？state rechargeable batteries,which theoretically have long cycle life as well as high energy density and thus are promising to apply in large-scale energy storage sys？tems.How to continue to enhance the ionic conductivity of SE is one of the key issues in development of all-solid？state batteries.This review provides a comparative overview regarding thio-LISICON SEs,one of the best ionic conductors,on the compositions,struc-tures,preparations,electrochemical performance and the mechanism to improve material performance.It is believed that this review will be an important reference for the follow-up research on SEs.
出处
《燕山大学学报》
CAS
北大核心
2015年第2期95-106,共12页
Journal of Yanshan University
基金
高等学校博士学科点专项科研基金资助项目(20121333120007)
燕山大学"新锐工程"资助项目
关键词
固体电解质
离子电导率
全固态电池
多元掺杂
thio-LISICON
solid electrolytes
thio-LISICON
ionic conductivity
all-solid-state batteries
multiple doping
