Electrochemical characteristics of an amorphous Mg0.9V0.1Ni alloy prepared by mechanical alloying

被引:57
|
作者
Nohara, S [1 ]
Hamasaki, K [1 ]
Zhang, SG [1 ]
Inoue, H [1 ]
Iwakura, C [1 ]
机构
[1] Univ Osaka Prefecture, Coll Engn, Dept Appl Chem, Sakai, Osaka 5998531, Japan
关键词
nickel-hydrogen battery; hydrogen storage alloy; MgNi; amorphous; mechanical alloying;
D O I
10.1016/S0925-8388(98)00736-1
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
Electrochemical characteristics of an amorphous MgNi alloy with Mg partially substituted by V were investigated. A Mg0.9V0.1Ni alloy prepared by mechanical alloying (MA) exhibited much better cycle life than MgNi alloy. It was found that the partial substitution of Mg in MgNi with V could suppress the formation of Mg(OH), on the alloy surface during the charge-discharge cycling in alkaline solution. This may have unveiled an important factor to improve cycle life of the Mg-based alloy for use in nickel-hydrogen batteries. (C) 1998 Elsevier Science S.A. All rights reserved.
引用
收藏
页码:104 / 106
页数:3
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