α-MnO2 nanowires:: A catalyst for the O2 electrode in rechargeable lithium batteries

被引:907
作者
Debart, Aurelie [1 ]
Paterson, Allan J. [1 ]
Bao, Jianli [1 ]
Bruce, Peter G. [1 ]
机构
[1] Univ St Andrews, Sch Chem, St Andrews KY16 9ST, Fife, Scotland
基金
英国工程与自然科学研究理事会;
关键词
batteries; energy conversion; lithium; manganese; nanomaterials;
D O I
10.1002/anie.200705648
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
(Figure Presented) Higher-capacity lithium batteries can be fabricated by using α-MnO2 nanowires as the catalyst in a porous, composite oxygen cathode. In the depicted scanning electron micrograph of a composite positive electrode, deposits of Li2O2, which accumulates during discharge, can be seen within a porous matrix consisting of α-MnO2 and carbon. © 2008 Wiley-VCH Verlag GmbH & Co. KGaA.
引用
收藏
页码:4521 / 4524
页数:4
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