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溶剂组成对LiFePO4电化学嵌脱锂性能的影响

Effects of solvent composition on electrochemical performance of LiFePO4 cathode

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【作者】 张晓丽郑洪河

【Author】 ZHANG Xiao-li1,ZHENG Hong-he2 (1.College of Chemistry and Chemical Engineering,Shangqiu Normal University,Shangqiu Henan 476000,China; 2.College of Chemistry & Environmental Sciences,Henan Normal University,Xinxiang Henan 453007,China)

【机构】 商丘师范学院化学化工学院河南师范大学化学与环境科学学院

【摘要】 应用循环伏安和恒电流充放电等方法研究了橄榄石型LiFePO4正极材料在不同混合溶剂的电解液中的电化学嵌脱锂性质,探讨了影响LiFePO4正极材料性能的溶剂因素。研究表明:溶剂组成对电极的比容量、倍率充放电性质和电化学循环性质都有影响。

【Abstract】 The electrochemical behavior of olivine LiFePO4 electrode in electrolytes based on different solvent compositions was investigated by using cycling voltammetry,and galvanostatic charge-discharge techniques.The factors relating to solvent properties influencing electrochemical performance of olivine LiFePO4 electrode were discussed.The results show that the solvent composition of electrolyte influences the specific capacity,rate capability and cycling performance of the olivine LiFePO4 electrode.

  • 【文献出处】 电源技术 ,Chinese Journal of Power Sources , 编辑部邮箱 ,2012年08期
  • 【分类号】TM912
  • 【下载频次】87
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