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电化学(中英文) ›› 2003, Vol. 9 ›› Issue (2): 222-227. 

• 研究论文 • 上一篇    下一篇

锂离子电池电解液低温导电性能的研究

韩景立,于燕梅,陈健,万春荣   

  1. 清华大学化工系,清华大学化工系,清华大学化工系,清华大学核能技术设计研究院 北京100084 ,北京100084 ,北京100084 ,北京102201
  • 收稿日期:2003-05-28 修回日期:2003-05-28 出版日期:2003-05-28 发布日期:2003-05-28

Conductance Properties for Electrolyte of Lithium Ion Battery at Low Temperature

HAN Jing_li1*, YU Yan_mei1, CHEN Jian1, WANG Chun_tong2   

  1. (1.Department of Chemical Engineering, Tsinghua University, Beijing 100084, China, 2.Institute of Nuclear Energy Technology, Tsinghua University, Beijing 102201, China)
  • Received:2003-05-28 Revised:2003-05-28 Published:2003-05-28 Online:2003-05-28

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.

关键词: 低温导电性, 电解液, 锂离子电池

Abstract: 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.

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