电源技术
電源技術
전원기술
CHINESE JOURNAL OF POWER SOURCES
2009年
9期
774-776
,共3页
张千玉%秋沉沉%付延鲍%马晓华
張韆玉%鞦沉沉%付延鮑%馬曉華
장천옥%추침침%부연포%마효화
锂离子电池%过充保护%添加剂%二甲苯
鋰離子電池%過充保護%添加劑%二甲苯
리리자전지%과충보호%첨가제%이갑분
lithium ion battery%overcharge protection%additive%xylene
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4.5 V(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.
二甲苯作為耐過充添加劑加入鋰離子電池電解液中,實驗髮現,噹電壓為4.5 V(相對于Li/Li~+)時,二甲苯開始在正極髮生反應.併擴散在正極與隔膜之間.生成的物質阻止瞭Li~+的傳遞,從而實現瞭過充電保護.
이갑분작위내과충첨가제가입리리자전지전해액중,실험발현,당전압위4.5 V(상대우Li/Li~+)시,이갑분개시재정겁발생반응.병확산재정겁여격막지간.생성적물질조지료Li~+적전체,종이실현료과충전보호.
Xylene 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.
