A study of layered lithium manganese oxide cathode materials

被引：23

作者：

Eriksson, TA ^{[1
]}

Doeff, MM ^{[1
]}

机构：

[1] Univ Calif Berkeley, Lawrence Berkeley Lab, Div Sci Mat, Berkeley, CA 94720 USA

来源：

JOURNAL OF POWER SOURCES | 2003年 / 119卷

关键词：

cathode; lithium battery; manganese oxide;

D O I：

10.1016/S0378-7753(03)00144-7

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：

Substituted layered sodium manganese oxide bronzes with the P2 structure were prepared by glycine-nitrate combustion synthesis. The Na in the as-prepared materials could be completely ion-exchanged for Li under mild conditions. All lithium manganese oxide compounds obtained after ion-exchange have O2 stacking of the layers. Cyclic voltammetry and stepped potential experiments on lithium cells containing these materials show that the main redox reaction around 3.1 V is a diffusion-controlled process and is completely reversible. O2-Li-0.6[Al(0.1)Mn(0.85)square(0.05)]O-2 and O2-Li-0.6[Ni(0.1)Mn(0.85)square(0.05)]O-2 are particularly promising as cathode materials in lithium cells because of the high reversible discharge capacities (180 mAh/g). (C) 2003 Elsevier Science B.V. All rights reserved.

引用

页码：145 / 149

页数：5

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