The capacity deterioration model of mechanically alloyed MgXNi100-X amorphous electrodes in charging-discharging cycling

被引:15
作者
Liu, WH [1 ]
Lei, YQ [1 ]
Wu, J [1 ]
Wang, QD [1 ]
机构
[1] ZHEJIANG UNIV,DEPT MAT SCI & ENGN,HANGZHOU 310027,PEOPLES R CHINA
关键词
D O I
10.1016/S0360-3199(96)00022-5
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
In this paper, a relationship between the electrochemical capacity of mechanically alloyed MgXNi100-X amorphous hydride electrodes and discharging time is deduced on the basis of oxidation of Mg and Ni. The experimental data are in good agreement with the deduced relation. Analysis shown that this is the common mechanism of hydride electrode degradation when the activation process is ignored. The parameters m and B of some amorphous hydrides art calculated on the basis of this relation. (C) 1997 International Association for Hydrogen Energy.
引用
收藏
页码:999 / 1003
页数:5
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