锂离子电池材料LiMn_2O_4的制备与改性研究  

Study on synthesis and modification of LiMn_2O_4 material used in Li-ion battery

作　　者：姚耀春[1] 戴永年[1] 任海伦[1] 崔萌佳[1] 李伟红[1] 

机构地区：[1]昆明理工大学材料与冶金工程学院,云南昆明650093

出　　处：《电池工业》2004年第3期140-144,共5页Chinese Battery Industry

摘　　要：尖晶石LiMn2O4被认为是最有发展前景的锂离子电池正极材料,但其高温容量衰减和循环性能差却是制约其商品化的主要原因。介绍了LiMn2O4的结构和电化学性能,综述了锂离子电池正极材料LiMn2O4的制备方法与改性研究。许多研究表明,在优化合成条件的基础上,通过掺杂和表面修饰可以改善其高温性能。Spinel LiMn 2 O 4 was believed to be the most promising cathode material for Li-ion battery,but its capacity fading and bad cycle performance at high temperature were the ma in barriers for commercializa-tion.Based on the structure and elec trochemical properties of spinel Li Mn 2 O 4 the preparation and modifi-cation of the cathode material LiMn 2 O 4 for Li-ion battery were discussed in the paper.Many studies showed that doping and surface modifying we re the most effective way to improve i ts high-temperature properties on the basis of optimizing synthetical conditions.

关 键 词：锂离子电池 LIMN2O4 制备 改性 

分 类 号：TM912.9[电气工程—电力电子与电力传动]