Electrode performance of romanechite for rechargeable lithium batteries

被引:9
作者
Tsuda, M [1 ]
Arai, H [1 ]
Nemoto, Y [1 ]
Sakurai, Y [1 ]
机构
[1] NTT, Telecommun Energy Labs, Tokai, Ibaraki 3191193, Japan
关键词
romanechite; manganese dioxide; soft chemistry; positive electrode; rechargeable lithium battery;
D O I
10.1016/S0378-7753(01)00793-5
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
We studied romanechite, (2 x 3) tunnel type manganese dioxide, as a positive electrode material for rechargeable lithium batteries. We synthesized the sample by soft chemical techniques, and its chemical composition was Ba0.18MnO2.10.0-0.42H(2)O. We obtained a first discharge capacity of 120 mAh g(-1) (energy density 264 mWh g(-1)). The capacity decreased with cycling. We examined the thermal behavior of this material, revealing its high thermal stability. (C) 2001 Elsevier Science B.V. All rights reserved.
引用
收藏
页码:135 / 138
页数:4
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