STUDIES ON AN LI-MN-O SPINEL SYSTEM (OBTAINED BY MELT-IMPREGNATION) AS A CATHODE FOR 4 V LITHIUM BATTERIES .1. SYNTHESIS AND ELECTROCHEMICAL-BEHAVIOR OF LIXMN2O4

被引：185

作者：

XIA, YY ^{[1
]}

TAKESHIGE, H ^{[1
]}

NOGUCHI, H ^{[1
]}

YOSHIO, M ^{[1
]}

机构：

[1] SAGA UNIV,DEPT APPL CHEM,SAGA 840,JAPAN

来源：

JOURNAL OF POWER SOURCES | 1995年 / 56卷 / 01期

关键词：

LITHIUM; LITHIUM-ION BATTERIES; MANGANESE OXIDES; LITHIATED MANGANESE OXIDES; SPINEL;

D O I：

10.1016/0378-7753(95)80009-6

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：

An LixMn2O4 spinel phase is used as a cathode for 4 V lithium batteries and is prepared by the melt-impregnation method, in which melted LiOH or LiNO3 is impregnated into MnO2 pores, then reacted with MnO2 at higher temperature. The effect of synthesis conditions on the electrochemical properties is investigated extensively. For optimum synthesis, the spinel LixMn2O4 should be prepared in an N-2 atmosphere at a low temperature of less than 750 degrees C and for a short time of less than 48 h. The optimum LiMn2O4 delivers an initial charge capacity of 135 mAh/g, and exhibits good rechargeability. The average specific capacity during first 50 cycles is about 120 mAh/g or more.

引用

页码：61 / 67

页数：7

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DELAHAY P, 1954, NEW INSTRUMENTAL MET, P119

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