尖晶石LiMn2O4高温电化学容量衰减及改进
Electrochemical Capacity Fading in High Temperature of Spinel LiMn2O4 and its Improvement
作者单位
陈召勇 中国科学院成都有机化学研究所功能材料开发中心, 成都610041 
刘兴泉 中国科学院成都有机化学研究所功能材料开发中心, 成都610041 
高利珍 中国科学院成都有机化学研究所功能材料开发中心, 成都610041 
于作龙 中国科学院成都有机化学研究所功能材料开发中心, 成都610041 
摘要: 综述了高温下尖晶石LiMn2O4容量衰减的原因、机理研究和改进它的高温性能的方法以及目前的进展,且指出了可能的提高它的高温性能的途径。
关键词: 尖晶石LiMn2O4  高温性能  阴极材料
基金项目: 国家科技部重点资助项目(No.98-D102).
Abstract: The reason for capacity fading and mechanism of spinel LiMn2O4 in high temperature was reviewed, and the capacity fading was mainly caused by the dissolution of manganese, oxidation of electrolyte, and the polarization of electrode.At the same time the solutions and progresses for improving the property of spinel LiMn2O4 in high temperature were also included in this paper, and adding other ions, decreasing the surface of cathode materials, and coating the positive materials were efficiently used to improve its high temperature performance.Furthermore, some methods which can possibly suppresses the capacity fade were suggested.
Keywords: spinel LiMn2O4  high temperature property  cathode materials
投稿时间:2001-01-02 修订日期:2001-03-01
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陈召勇,刘兴泉,高利珍,于作龙.尖晶石LiMn2O4高温电化学容量衰减及改进[J].无机化学学报,2001,17(3):325-330.
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