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

被引：14
作者：
Yang, Kedi [1 ]
Su, Jing [1 ]
Zhang, Li [1 ]
Long, Yunfei [1 ]
Lv, Xiaoyan [2 ]
Wen, Yanxuan [1 ]
机构：
[1] Guangxi Univ, Sch Chem & Chem Engn, Nanning 530004, Peoples R China
[2] Guangxi Univ, Educ Adm Dept, Nanning 530004, Peoples R China
来源：
PARTICUOLOGY | 2012年 / 10卷 / 06期
关键词：
Lithium ion battery; Cathode materials; LiNi0.5Mn1.5O4; Urea combustion synthesis; ELECTRODE MATERIALS; SPINEL; PERFORMANCE; LIMN1.5NI0.5O4;
D O I：
10.1016/j.partic.2011.12.003
中图分类号：
TQ [化学工业];
学科分类号：
0817 ;
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 spinet structure LiNi0.5Mn1.5O4 with the space group Fd (3) over barm 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 degrees C, the particle-size distribution fell in a narrow range of 1-2 mu 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. (c) 2012 Chinese Society of Particuology and Institute of Process Engineering, Chinese Academy of Sciences. Published by Elsevier B.V. All rights reserved.
引用
收藏
页码：765 / 770
页数：6
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