Electrode characteristics of metal hydride electrodes prepared by mechanical alloying

被引：19

作者：

Jung, CB ^{[1
]}

Lee, KS ^{[1
]}

机构：

[1] HANYANG UNIV,DEPT ENGN MET,SEOUL 133791,SOUTH KOREA

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 1997年 / 253卷 / 1-2期

关键词：

metal hydride; mechanical alloying; electrode characteristics;

D O I：

10.1016/S0925-8388(96)03044-7

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：

AB(TiFe) and AB(2)(ZrCr2) type metal hydride have been produced by a mechanical alloying (MA) process and their electrochemical characteristics have been evaluated for use in Ni/MH batteries. Ti-Fe alloys showed an amorphous state after 40 h of ball milling, but Zr-Cr alloys revealed a mixture of nanocrystalline ZrCr2 and an amorphous state. MA Ti-Fe alloys showed a higher discharge capacity and a shorter cyclic life than the arc-melted one; however, MA Zr-Cr alloys had a lower discharge capacity and a longer cyclic life. Substitution of alloying elements such as Ni, Co, Cr, Mo and Ti improved greatly the electrode characteristics.

引用

页码：605 / 608

页数：4

共 9 条

[1]

BENJAMIN JS, 1970, METALL TRANS, V1, P2943

[2]

BOULGHALLAT M, 1991, J LESS-COMMON MET, V172, P105

[3] GLASS-FORMATION IN MECHANICALLY ALLOYED TRANSITION-METAL TITANIUM-ALLOYS [J].