Improvement of the cycle stability of vanadium-based alloy for nickel-metal hydride (Ni-MH) battery

被引：38

作者：

Tsukahara, M

Takahashi, K

Isomura, A

Sakai, T

机构：

[1] IMRA Mat R&D Co Ltd, Kariya, Aichi 4480021, Japan

[2] Osaka Natl Res Inst, Ikeda, Osaka 5638577, Japan

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 1999年 / 287卷 / 1-2期

关键词：

Ni-MH battery; vanadium; cycle stability; solid solution; metal hydride;

D O I：

10.1016/S0925-8388(98)00922-0

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：

The cycle stability of the vanadium-based alloy V3TiNi0.56 was improved by addition of Al, Si, Mn, Fe, Co, Nh, Mo, Pd and Ta. Adding Nb and Co to the alloy effectively improved the cycle stability without considerable decreasing in initial capacity and without much degradation of initial activation characteristics. The cycle stability of V3Ti(Ni0.56Co0.14)(w)Nb0.047Ta0.047 (w=0.8-1.2) increased with increasing w value, because the secondary phase worked as a skeleton to keep the alloy powder from pulverization during charge-discharge cycles. (C) 1999 Elsevier Science S.A. All rights reserved.

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页码：215 / 220

页数：6

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