原位电聚合苯胺修饰LiMn_2O_4正极材料的研究  

Investigation on LiMn_2O_4 cathode 'in situ' modified by polyaniline with electrochemical method

作　　者：李仁贵[1] 王璐[1] 陈勉忠[1] 邓正华[1] 

机构地区：[1]中国科学院成都有机化学研究所,四川成都610041

出　　处：《电源技术》2004年第12期751-754,共4页Chinese Journal of Power Sources

摘　　要：采用苯胺在LiMn2O4电极片表面原位电化学聚合制备锂离子蓄电池复合正极。考察了不同因素对复合电极电池性能的影响;结果表明:扫描电位区间、单体浓度对复合电极的电池性能有较大影响。经修饰后的复合电极表现出良好的电池性能,特别是LiMn2O4材料的高温性能得到明显改善。Composite cathode including LiMn2O4 and modification layer of polyaniline was prepared by 'in situ' electrochemical method. The effects of scanning voltage region and monomer concentration on the performance were discussed. As a result, the composite cathode had better electrochemical performance, and excellent characteristic in high temperature.

关 键 词：锂离子蓄电池 正极材料 电化学聚合 复合电极 修饰 苯胺 

分 类 号：TM912.2[电气工程—电力电子与电力传动]