Morphology and electrochemical behavior of an ultrafine LiMn2O4 powder obtained by a new route, from freeze-dried precursors

被引：20

作者：

Le Mercier, T

Gaubicher, J

Bermejo, E

Chabre, Y

Quarton, M

机构：

[1] Univ Paris 06, Lab Cristallochim Solide, CNRS, URA 1388, F-75252 Paris 05, France

[2] Univ Grenoble 1, Spectrometrie Phys Lab, F-38402 St Martin Dheres, France

[3] CNRS, F-38402 St Martin Dheres, France

来源：

JOURNAL OF MATERIALS CHEMISTRY | 1999年 / 9卷 / 02期

关键词：

D O I：

10.1039/a805178j

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：

An ultrafine (25-40 nm) powder of spinel lithium manganese oxide with composition Li0.95Mn2O4 was obtained from decomposition of freeze drying nitrate precursors and heat treatment below 500 degrees C. Positive electrodes prepared with this material have been cycled between 4.6 and 3.1 V up to C/2 rate. The specific discharge capacity at such a rate decreases from 110 to 90 mA h g(-1) after 80 cycles, with a low polarization only.

引用

页码：567 / 570

页数：4

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