IMPROVED CAPACITY RETENTION IN RECHARGEABLE 4V LITHIUM LITHIUM MANGANESE OXIDE (SPINEL) CELLS

被引：1393
|
作者：
GUMMOW, RJ [1 ]
DEKOCK, A [1 ]
THACKERAY, MM [1 ]
机构：
[1] CSIR, DIV MAT SCI & TECHNOL, PRETORIA 0001, SOUTH AFRICA
来源：
SOLID STATE IONICS | 1994年 / 69卷 / 01期
关键词：
D O I：
10.1016/0167-2738(94)90450-2
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：
The rechargeable capacity of 4 V LixMn2O4 spinel cathodes (0 < x less-than-or-equal-to 1) has been improved by modifying the composition of the spinel electrode. Stable rechargeable capacities in excess of 100 mAh/g in flooded-electrolyte lithium cells can be achieved if LiMn2O4 is doped with mono- or multivalent cations (e.g. Li+, Mg2+, Zn2+) or, alternatively, with additional oxygen to increase the average manganese-ion oxidation state marginally above 3.5.
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页码：59 / 67
页数：9
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