砜类有机溶剂在锂离子电池中的应用研究进展  

Progress in sulfones organic solvents for lithium ion batteries

作　　者：薛宇宙[1] 李世友[1] 崔孝玲[1] 净洁 齐晓辉 

机构地区：[1]兰州理工大学石油化工学院,兰州730050 [2]朝阳永恒化学有限公司研发中心,朝阳122000

出　　处：《化工新型材料》2015年第8期16-18,共3页New Chemical Materials

基　　金：国家自然科学基金(20961004);甘肃省科技计划(1107RJYA056)

摘　　要：电解液是电池中离子传输的载体,是锂离子电池不可缺少的一部分,直接影响着电池的电化学性能。从理论和实验上对砜类有机溶剂在锂离子电池中的应用研究进展进行了介绍。砜类溶剂的氧化稳定性比常规溶剂高,它的使用拓宽了电解液电化学窗口,增加了电解液的电化学稳定性,改善了锂离子电池的性能。但因砜类电解液黏度高,不能形成稳定的SEI膜等特点,在电池中需加入共溶剂和成膜添加剂来解决。The electrolyte is the carrier of ion transfer in the battery,which is the indispensable part of lithium-ion batteries and immediately influence the electrochemical performance of batteries. The research of sulfone-based electrolyte at the theoretical level and experimentally was introduced. The oxidation stability of the sulfone based solvent was higher than that of conventional solvent. The use of it could widen the electrochemical window of the electrolyte,increased the sta bility of the electrolyte,and improved the performance of lithium ion batteries. But because of the characteristics of sulfones which had the high viscosity and stable SEI film no being formed,cosolvents and film forming additives were ned in the sul- lone based electrolyte.

关 键 词：砜类 电解液 锂离子电池 

分 类 号：TM912[电气工程—电力电子与电力传动] TQ413.2[化学工程]