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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

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【作者】 韩景立于燕梅陈健万春荣

【Author】 HAN Jing_li1*, YU Yan_mei1, CHEN Jian1, WANG Chun_tong2(1.Department of Chemical Engineering, Tsinghua University, Beijing 100084, China, 2.Institute of Nuclear Energy Technology, Tsinghua University, Beijing 102201, China)

【机构】 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北京102201

【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.

【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.

【基金】 清华大学基础研究基金 (2 0 0 1 1 50 0 7)资助
  • 【分类号】TM911
  • 【被引频次】16
  • 【下载频次】709
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