Urea combustion synthesis of LiNi0.5Mn1.5O4 as a cathode material for lithium ion batteries

被引：0
|
作者：
Kedi Yang [1 ]
Jing Su [1 ]
Li Zhang [1 ]
Yunfei Long [1 ]
Xiaoyan Lv [2 ]
Yanxuan Wen [1 ]
机构：
[1] School of Chemistry and Chemical Engineering,Guangxi University
[2] Educational Administration Department,Guangxi University
来源：
Particuology | 2012年 / 10卷 / 06期
关键词：
Lithium ion battery Cathode materials LiNi0.5Mn1.5O4 Urea combustion synthesis;
D O I：
暂无
中图分类号：
TM912 [蓄电池];
学科分类号：
摘要：
LiNi0.5Mn1.5O4 was synthesized by combustion synthesis(UCS) using urea as fuel.X-ray diffraction and scanning electron microscope measurements showed that the spinel structure LiNi0.5Mn1.5O4 with the space group Fd3m was formed during urea combustion.Both structure and particle size could be adjusted by the amount of urea and the heat treatment temperature used in the UCS.For the LiNi0.5Mn1.5O4 sample prepared with a urea/Li molar ratio of 0.57 and a heat treatment temperature of 900 C,the particle-size distribution fell in a narrow range of 1-2 m.Electrochemical tests indicated that this LiNi0.5Mn1.5O4 sample delivered a discharge capacity of 133.6 mAh/g with a capacity retention rate of 99.6% after 20 cycles at 0.5 C.
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页码：765 / 770
页数：6
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