A study of the development of a high capacity and high performance Zr-Ti-Mn-V-Ni hydrogen storage alloy for Ni-MH rechargeable batteries

被引：34

作者：

Kim, DM

Jeon, SW

Lee, JY

机构：

[1] Korea Adv Inst Sci & Technol, Dept Mat Sci & Engn, Yusong Gu, Taejon 305701, South Korea

[2] Seoul Natl Univ, Div Civil Urban & Geosyst Engn, Seoul, South Korea

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 1998年 / 279卷 / 02期

关键词：

high capacity; high performance; hyper-stoichiometry; Zr-based laves phase; Ni-MH battery;

D O I：

10.1016/S0925-8388(98)00508-8

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：

Extensive investigations have been carried out for developing a Zr-based Laves phase alloy with high capacity and high rate-capability for electrochemical application. In order to increase the discharge capacity of the ZrMn0.7V0.5Ni1.2 alloy, which is optimized in our previous work [11], Ti was partially substituted for Zr and the stoichiometry was also changed. This change also increases the rate-capability. After such careful alloy design reached by substitution and changing stoichiometry, Zr0.9Ti0.1(Mn0.7V0.5Ni1.4)(0.92) alloys with high capacity and high rate-capability have been developed. This alloy has a discharge capacity of 392 mA h g(-1) at 0.25 C discharge rate and shows high rate-capability equalling that of commercialized AB, type alloys. (C) 1998 Elsevier Science S.A. All rights reserved.

引用

页码：209 / 214

页数：6

共 13 条

[1]

FETCENKO MA, 1989, POWER SOURCES, V12, P411

[2] The electrode characteristics and modified surface properties of V0.9Ti0.1 alloy sintered with Ni powder [J].