二甲苯用作锂离子电池过充保护的添加剂  

Xylene as overcharge protection additive in lithium ion battery

作　　者：张千玉[1] 秋沉沉[1] 付延鲍[1] 马晓华[1] 

机构地区：[1]复旦大学材料科学系,上海200433

出　　处：《电源技术》2009年第9期774-776,共3页Chinese Journal of Power Sources

摘　　要：二甲苯作为耐过充添加剂加入锂离子电池电解液中,实验发现,当电压为4.5V(相对于Li/Li+)时,二甲苯开始在正极发生反应,并扩散在正极与隔膜之间。生成的物质阻止了Li+的传递,从而实现了过充电保护。Xyiene as overcharging additive was added into Li-ion battery electrolyte. Xylene can electrochemically react at cathode from 4.5 V（vs.Li/Li^＋） and diffuse between cathode and separator. The productor of polymer prevented the ion from transfering ,therefore overcharge protection in lithium ion batteries can be achieved.

关 键 词：锂离子电池 过充保护 添加剂 二甲苯 

分 类 号：TM912.9[电气工程—电力电子与电力传动]