Synthesis and crystal structure of LiMn2O4 cathode material for Li-ion battery

被引：0
作者：
Ruan, YL
Tang, ZY [1 ]
Han, ES
Feng, JJ
机构：
[1] Tianjin Univ, Sch Chem Engn & Technol, Dept Appl Chem, Tianjin 300072, Peoples R China
[2] Hebei Univ Technol, Sch Chem Engn & Technol, Dept Appl Chem, Tianjin 300130, Peoples R China
来源：
CHINESE JOURNAL OF INORGANIC CHEMISTRY | 2005年 / 21卷 / 02期
关键词：
Li-ion battery; cathode material; LiMn2O4; crystal structure;
D O I：
暂无
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
Spinet LiMn2O4 powders were prepared using two-step synthesis method consisting of solid-state reaction method and citrate modified sol-gel method. The effects of the calcination temperature and the Li/Mn ratio of raw materials were studied on the physicochemical and electrochemical properties of the spinet LiMn2O4 powders, such as crystallinity, lattice constant and density. The title compound was characterized by powder X-ray diffraction (XRD), scanning electron microscopy (SEM) and transmission electron microscopy (TEM). Polycrystalline LiMn2O4 powers calcined at 750 degreesC were found to be composed of very uniformly-sized microcrystal with an average particle size of 300 nm. The improvement in electrochemical properties was mainly attributed to the process of re-grinding by absolute alcohol.
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页码：232 / 236
页数：5
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