Influence of carbon on electrode properties of V-Ti-Ni type hydrogen storage alloy

被引：15

作者：

Shi, J

Tsukahara, M

Takeshita, HT

Kuriyama, N

Sakai, T

机构：

[1] New Energy & Ind Technol Dev Org, Toshima Ku, Tokyo 1706028, Japan

[2] IMRA Mat R&D Co Ltd, Kariya, Aichi 448, Japan

[3] AIST, Osaka Natl Res Inst, Osaka 5638577, Japan

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 1999年 / 293卷

关键词：

carbon; hydrogen storage alloy; vanadium-based solid solution alloy; microstructure; electrochemical PCT;

D O I：

10.1016/S0925-8388(99)00343-6

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：

influences of carbon on microstructure and electrode properties were investigated for battery alloy V4TiNi0.65Co0.05Nb0.047Ta0.047. With increasing carbon concentration, the cycle-life of charge/discharge became longer. One of main factors that affected the cycle-life was the expansion and reduction of the (Ti,V)-based solid solution phase. Cracks yielded in TiNi phase more easily than in other phases. V-based battery alloys were more hardly pulverized than AB(5) and AB(2) intermetallic compound type materials. (C) 1999 Published by Elsevier Science S.A. All rights reserved.

引用

页码：716 / 720

页数：5

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