LiMn2O4 for 4 V lithium-ion batteries

被引：70

作者：

Manev, V ^{[1
]}

Banov, B ^{[1
]}

Momchilov, A ^{[1
]}

Nassalevskaa, A ^{[1
]}

机构：

[1] BULGARIAN ACAD SCI,CENT LAB ELECTROCHEM POWER SOURCES,BU-1113 SOFIA,BULGARIA

来源：

JOURNAL OF POWER SOURCES | 1995年 / 57卷 / 1-2期

关键词：

lithium-ion batteries; lithium; manganese dioxide;

D O I：

10.1016/0378-7753(95)02227-9

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

LiMn2O4 spinel samples, synthesized by the reaction of Li2CO3 and MnCO3 in air in several steps, have been evaluated as the electrode materials in 4 V lithium-ion cells. It was shown that the synthesis in the temperature range 500-750 degrees C leads to compounds with very poor electrochemical behavior. This is explained by a model of the chemistry of LiMn2O4 preparation proposed by Howard. On the basis of this model a new scheme of LiMn2O4 preparation is proposed. It was established experimentally that compounds with very high electrochemical characteristics can be obtained by a stepwise synthesis process, proceeding at three narrow temperature intervals.

引用

页码：99 / 103

页数：5

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