锂离子电池电解液低温导电性能的研究  

Conductance Properties for Electrolyte of Lithium Ion Battery at Low Temperature

作　　者：韩景立[1] 于燕梅[1] 陈健[1] 万春荣[2] 

机构地区：[1]清华大学化工系,北京100084 [2]清华大学核能技术设计研究院,北京102201

出　　处：《电化学》2003年第2期222-227,共6页Journal of Electrochemistry

基　　金：清华大学基础研究基金 (2 0 0 1 1 50 0 7)资助

摘　　要：　本文研究了用于锂电池的LiPF6＿乙烯碳酸酯(EC)＿甲基乙酸酯(MA)电解液体系,测定了该体系在不同的溶剂配比和盐浓度下于20℃～-50℃时的电导率,给出该体系性能最佳的溶剂配比和盐浓度,以此进行循环伏安和充放电测试,并与商用电解液(LiPF6 EC 二乙基碳酸酯(DEC)进行了比较.The system of LiPF6_ethylene carbonate (EC) _methy1 acetate (MA) was studied. The conductivities of this system were measured under various composition and various salt concentrations at temperature range of 20～-50 ℃. The optimum composition of this system was selected. The tests of cyclic voltammography and charge_discharge were carried out. This system was compared with commercial electrolyte solution.

关 键 词：锂离子电池 电解液 低温导电性能 LIPF6 乙烯碳酸酯 甲基乙酸酯 

分 类 号：TM911[电气工程—电力电子与电力传动]