ORTHORHOMBIC NAXMNO2 AS A CATHODE MATERIAL FOR SECONDARY SODIUM AND LITHIUM POLYMER BATTERIES

被引：176

作者：

DOEFF, MM

PENG, MY

MA, YP

DEJONGHE, LC

机构：

[1] Materials Sciences Division, Lawrence Berkeley Laboratory, University of California, Berkeley

来源：

JOURNAL OF THE ELECTROCHEMICAL SOCIETY | 1994年 / 141卷 / 11期

关键词：

D O I：

10.1149/1.2059323

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

The use of orthorhombic NaxMnO2 as a cathode material for alkali metal polymer electrolyte batteries is described for the first time. This sodium manganese bronze has a tunnel structure and can reversibly intercalate up to 0.55 to 0.6 alkali metal ions (Li+ or Na+) per manganese at moderate current densities, corresponding to capacities of 160 to 180 mAh/g. Li/PEO/Na0.2LixMnO2 cells [PEO = poly(ethylene oxide)] to date have been cycled over ninety times at 0.1 mA/cm2, with excellent capacity retention. Na/PEO/NaxMnO2 and NaxMnO2/PEO/NaxMnO2 cells have been cycled over sixty times to date at the same rate, showing moderate capacity fading.

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页码：L145 / L147

页数：3

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