Improvement of electrochemical cyclic durability of Zr-based AB2 alloy electrodes

被引：0
|
作者：
Liu, Bin Hong [1 ]
Li, Zhou Peng [1 ]
Kitani, R [1 ]
Suda, S [1 ]
机构：
[1] Department of Environmental and Chemical Engineering, Kogakuin University, 2665-1, Nakano-cho, Hachioji, Tokyo 192-0015, Japan
来源：
| 1600年 / Elsevier Ltd卷 / 330-332期
关键词：
Cathodes - Electric batteries - Electrochemical electrodes - Electrochemistry - Stoichiometry;
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摘要：
Zr-based AB2 Laves phase alloys are promising materials for the negative electrode in Ni-MH batteries. In this work, we attempted to improve their cyclic durability in the electrolyte by using hyper-stoichiometric and Cr-substituted alloys. It was found that the hyper-stoichiometric alloys exhibited improved cycle life as a result of increased mechanical stability during the cycling. The Cr-incorporated alloys showed a low level of vanadium dissolution and small change in surface area after the cycling, but their overall electrochemical performances were discouraging. © 2002 Elsevier Science B.V. All rights reserved.
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