The effect of multivalent cation dopants on lithium manganese spinel cathodes

被引：32

作者：

de Kock, A ^{[1
]}

Ferg, E ^{[1
]}

Gummow, RJ ^{[1
]}

机构：

[1] CSIR, Div Mat Sci & Technol, ZA-0001 Pretoria, South Africa

来源：

JOURNAL OF POWER SOURCES | 1998年 / 70卷 / 02期

关键词：

lithium manganese; spinel; cation doping;

D O I：

10.1016/S0378-7753(97)02681-5

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 cycling stability of 4 V LixMn2O4 electrodes in lithium, flooded electrolyte glass cells has been improved by the addition of multivalent cation dopants (Mg2+, Zn2+ and Al3+). Optimal dopant levels to achieve maximum capacity and the greatest stability with repeated cycling have been determined. The effect of doping the oxygen-rich spinel Li2Mn4O9 was also determined and shown to make no significant improvement in the life cycle stability in the 3 V region. (C) 1998 Elsevier Science S.A.

引用

页码：247 / 252

页数：6

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