The influence of Co and various additives on the performance of MmNi(4.3-x)Mn(0.33)Al(0.4)Co(x) hydrogen storage alloys and Ni/MH prismatic sealed cells

被引：60

作者：

Cocciantelli, JM ^{[1
]}

Bernard, P ^{[1
]}

Fernandez, S ^{[1
]}

Atkin, J ^{[1
]}

机构：

[1] SAFT RES,F-91460 MARCOUSSIS,FRANCE

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 1997年 / 253卷

关键词：

metal-hydride batteries; AB(5) alloy Co content; cycle life; Al effect on the (+) electrode;

D O I：

10.1016/S0925-8388(96)02978-7

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：

MmNi(5) substituted alloys with Mn, Al and Co were studied as active materials for (-) electrodes in Ni/MH prismatic sealed cells for electric vehicles. In order to reduce the alloy cost, the influence of Co content was studied from 10-5% by weight in the AB(5). As Co content is reduced, decrepitation and alloy corrosion are higher. Particularly, we showed how Al released by the corroded alloy polluted the (+) electrodes in the cell. Substitution of Co by Fe allows cost reduction without affecting Ni/MH cell performances and this behaviour is attributed to less decrepitation.

引用

页码：642 / 647

页数：6

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