Layered xLiMO2 • (1-x)Li2M′O3 electrodes for lithium batteries:: a study of 0.95LiMn0.5Ni0.5O2 • 0.05Li2TiO3

被引：172

作者：

Kim, JS ^{[1
]}

Johnson, CS ^{[1
]}

Thackeray, MM ^{[1
]}

机构：

[1] Argonne Natl Lab, Div Chem Technol, Electrochem Technol Program, Argonne, IL 60439 USA

来源：

ELECTROCHEMISTRY COMMUNICATIONS | 2002年 / 4卷 / 03期

关键词：

lithium batteries; stabilized layer electrode;

D O I：

10.1016/S1388-2481(02)00251-5

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

The electrochemical properties of 0.95LiMn(0.5)M(0.5)O(2) . 0.05Li(2)TiO(3) have been investigated as part of a study of xLiMO(2) . (1 - x)Li2M'O-3 electrode systems for lithium batteries in which M = Co, Ni, Mn and M' = Ti, Zr, Mn. The data indicate that the electrochemically inactive Li2TiO3 Component contributes to the stabilization of LiMn0.5M0.5O2 electrodes, which improves the coulombic efficiency of Li/xLiMn(0.5)Ni(0.5)O(2) . (1 - x)Li2TiO3 cells for x < 1. The 0.95LiMn(0.5)Ni(0.5)O(2) • 0.05Li(2)TiO(3) electrodes provide a rechargeable capacity of approximately 175 mAh/g at 50 °C when cycled between 4.6 and 2.5 V; there is no indication of spinel formation during electrochemical cycling. (C) 2002 Elsevier Science B.V. All rights reserved.

引用

页码：205 / 209

页数：5

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