| 尖晶石LiMn2O4容量衰减的原因及性能改进 |
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| 引用本文： | 万传云.尖晶石LiMn2O4容量衰减的原因及性能改进[J].电池,2007,37(6):463-465. |
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| 作者姓名： | 万传云 |
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| 作者单位： | 上海应用技术学院化学工程系,上海,200235 |
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| 基金项目： | 上海市重点学科建设项目 |
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| 摘 要： | 分析了尖晶石LiMn2O4容量衰减的原因:Jahn-Teller效应、Mn的溶解、有机电解液的分解、Li和Mn的错位、自放电及不稳定的两相结构等.从合成方法、掺杂及表面修饰等角度,介绍了抑制尖晶石LiMn2O4容量衰减和提高循环性能的方法.
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| 关 键 词： | 锂离子电池 尖晶石LiMn2O4 容量衰减 正极材料 |
| 文章编号： | 1001-1579(2007)06-0463-03 |
| 修稿时间： | 2007年6月25日 |
Main factors inducing capacity fading of spinel LiMn2O4 and the performance improvement |
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| WAN Chuan-yun.Main factors inducing capacity fading of spinel LiMn2O4 and the performance improvement[J].Battery Bimonthly,2007,37(6):463-465. |
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| Authors: | WAN Chuan-yun |
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| Abstract: | The factors of spinel LiMn2O4 capacity fading such as Jahn-Teller effect,dissolution of Mn,decomposition of organic electrolyte,dislocation of Li and Mn,self discharge and unstable structures of two phases were analyzed.The methods to prevent the capacity fading and increase the cycle performance of spinel LiMn2O4 were introduced from the points of view of synthesis method,doping and surface modification. |
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| Keywords: | Li-ion battery spinel LiMn_2O_4 capacity fading cathode material |
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