Preparation of LiMn2O4 by Low Temperature Molten-Combustion Method

被引：0

作者：

Liu Guiyang ^{[1
]}

Liu Jie

He Ying

Wang Baosen

Zhai Fengrui

Guo Junming ^{[2
]}

Chen Kexin ^{[3
]}

机构：

[1] Honghe Univ, Coll Sci, Mengzi 661100, Peoples R China

[2] Yunan Nationalities Univ, Kunming 650031, Peoples R China

[3] Tsinghua Univ, State Key Lab New Ceram & Fine Proc, Beijing 100084, Peoples R China

来源：

RARE METAL MATERIALS AND ENGINEERING | 2009年 / 38卷

关键词：

low temperature molten-combustion method; spinel LiMn2O4; lithium-ion batteries; cathode materials; fuel;

D O I：

暂无

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A new low temperature molten-combustion method was introduced to prepare spine! LiMn2O4. The effects of oxalic acid and citric acid as fuels on the phase composition and electrochemical performance of products were studied. The results indicated that the main phase of products was LiMn2O4, and the impurity phase was Mn2O3. The effect of oxalic acid as fuel on the products was not obvious at the molar ratio of Li:Mn:oxalic acid=1:2:0 similar to 1.5(molar ratio), but at Li:Mn:oxalic acid=1:2:2.0, the purity of the product decreased. However the effect of citric acid on the products was obvious. The purity of products increased when using small amount of citric acid, but decreased with increasing citric acid content. The purest product was obtained at Li:Mn:Citric acid=1:2:0.5, which had the capacity of 121mAh/g, but the cyclic performance was not good.

引用

页码：22 / 25

页数：4

共 12 条

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