摘要
尖晶石 LiMn_2O_被认为是最具发展前景的锂离子电池正极材料,但其容量衰减快和循环性能差是制约其商品化的主要原因。分析了尖晶石 LiMn_2O_4容量衰减快和循环性能差的原因,将其归结为内因和外因;在此基础上,从离子掺杂、表面修饰、电解液改性、合成工艺优化几个方面讨论了改善尖晶石 LiMn_2O_4性能的解决方法。
Spinel LiMn_2O_4 is the most promising cathode material for Li-ion bauery,but its capacity fading and poor cycleability are the main barrier for its commercialization.The reasons for capacity fading and poor cycleability of spinel LiMn_2O_4 are analyzed and classified into interior and exterior factors.On the basis of these,the solutions for improvement of spinel LiMn_2O_4 performance are discussed from ion doping,surface modification,electrolyte improve- ment and synthesis method optimization.
出处
《材料导报》
EI
CAS
CSCD
北大核心
2005年第7期1-4,共4页
Materials Reports
基金
云南省省级重点实验室基金(14051038)
