LiMn2O4 hollow nanosphere electrode material with excellent cycling reversibility and rate capability

被引：93

作者：

Luo, Jiayan ^{[1
]}

Cheng, Liang ^{[1
]}

Xia, Yongyao ^{[1
]}

机构：

[1] Fudan Univ, Dept Chem, Shanghai Key Lab Mol Catalysis & Innovat Mat, Shanghai 200433, Peoples R China

来源：

ELECTROCHEMISTRY COMMUNICATIONS | 2007年 / 9卷 / 06期

基金：

中国国家自然科学基金;

关键词：

hollow nanospheres; LiMn2O4; spinel; lithium-ion battery;

D O I：

10.1016/j.elecom.2007.01.058

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

Lithium-rich Li1.05Mn2O4 hollow nanospheres have been successfully prepared by air-calcining lithiated MnO2 precursor at a low temperature of 550 degrees C, which was synthesized by chemical lithiation of hollow MnO2 nanospheres with LiI at 70 degrees C for 12 h. The lithium-rich Li1.05Mn2O4 hollow nanospheres exhibit an excellent cycling stability and rate capability as a cathode material for rechargeable lithium batteries: it maintains 90% of its initial capacity after 500 cycles, and keeps 70% of the reversible capacity at 0.1 C rat, even at 15 C rate. (C) 2007 Elsevier B.V. All rights reserved.

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页码：1404 / 1409

页数：6

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