Improvement of the electrochemical properties of LiMn2O4 by doping rare earth element Ce

摘要：

A series of cathode materials for Li-ion battery, spinel LiMn2-xCexO4 (x=0-0.03), were synthesized by the method of solid-state reaction at high temperature. The XRD data showed that all the synthesis samples were pure spinel phase. The results of charge-discharge tests show that LiMn1.98Ce0.02O4 has the highest discharge specific capacity of 119.6 mAh/g, and the discharge specific capacity of the material was 108.5 mAh/g after 50 cycles at room temperature with a retention of 91.0％, and the coulombic coefficient was still high up to 99.8％.

关键词： Lithium ion battery cathode material spinel LiMn2O4 rare earth element Ce electrochemical properties

作者: Zhang Hai-Lang Ren Ren An Jing

作者单位: School of Chemical and Material Engineering , Jiangnan University, Jiangsu, Wuxi 214122, China

会议类型: 国际会议

会议名称: 11th IUMRS International Conference in Asia(第十一届国际材联亚洲材料大会 IUMRS-ICA 2010)

会议地点: 青岛

会议语种:英文

页码: 716-719

在线出版日期: 2010-09-25（万方平台首次上网日期，不代表论文的发表时间）