锂电池正极材料LiMn_2O_4的改性与循环寿命

Modification of LiMn_2O_4 Cathode Materials for Improved Capacity Retention

对 L i Mn2 O4 进行改性可有效提高其循环寿命。其中合成掺杂 Li Mn2 O4 的解决循环性能下降的最有效手段。本文在探讨改性 L i Mn2 O4 的结构与其循环性能关系的基础上讨论了掺杂离子的选择标准。

The cycle life of LiMn 2O 4 cathode materials for 4V Li ion batteries can be improved effectively through some material modification routes.Doping the spinel with another ion is regarded as the most effective way for improvement of rechargeability.Based on the relation between structure of the modified LiMn 2O 4 and its cycling property,the factors that should be considered in the selection of doped ions are discussed in this paper.\;