Electrode Characteristics of MmNi5-based Alloys for Nickel-Metal Hydride Batteries

被引：0
|
作者：
Mingming GENG (Dept. of Precision Alloy
机构：
来源：
Journal of Materials Science & Technology | 1994年 / 04期
关键词：
Ni; Met; Electrode Characteristics of MmNi5-based Alloys for Nickel-Metal Hydride Batteries; PVA;
D O I：
暂无
中图分类号：
O646 [电化学、电解、磁化学];
学科分类号：
081704 ;
摘要：
Negative electrodes of the Ni-metal hydride battery were made from hydrogen storage alloy Mm0.9Ti0. 1Ni3. 9Mn0.4Co0.4Al0.3 mod fied by coating with Ni or mixing with Co powder. The cell volume expansion of hexagonal structure was about 12 % after coating with 11 % Ni on the alloy Surface,When this alloy was mixed with Co powder. the discharge capacity and the utilization efficiency of the hydrogen storage alloy increased. When the alloy was coated with 11 wt-% Ni and also mixed with 10 wt-% Co powder. the capacity decay for a small sealed cylindrical cell (AA size. 1 Ah) was only about 4 % after 200 cycles
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页码：310 / 312
页数：3
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