Effect of adding chromium to Ti-Zr-Ni-V-Mn alloy on its cycle life as an Ni/metal-hydride battery material

被引：5
|
作者：
Lee, SF
Wang, YY
Wan, CC
机构：
[1] Department of Chemical Engineering, Tsing-Hua University Hsinchu, Hsinchu
来源：
JOURNAL OF POWER SOURCES | 1997年 / 66卷 / 1-2期
关键词：
hydrogen absorption; metal-hydride alloys; hydrogen desorption;
D O I：
10.1016/S0378-7753(96)02539-6
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：
Chromium is added to Ti-Zr-Ni-V-based AB(2)-type alloys to investigate its effect on the cycle-life performance of Ni/metal-hydride batteries made from these alloys. It is found that the addition of chromium significantly reduces the discharge capacity although it has only a limited effect on the hydrogen absorption/desorption performance. Presumably, chromium has a negative effect on the discharge kinetics. In addition, chromium controls the dissolution of V and Zr and hence, extends cycle life. An optimal material, Ti0.35Zr0.65Ni1.2V0.6Mn0.2Cr0.2 is identified and prepared. This possesses acceptable performance with respect to both discharge capacity and cycle life.
引用
收藏
页码：165 / 168
页数：4
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