Electrode properties of Mg2Ni alloy ball-milled with cobalt powder

被引：14

作者：

Chen, J ^{[1
]}

Bradhurst, DH ^{[1
]}

Dou, SX ^{[1
]}

Liu, HK ^{[1
]}

机构：

[1] Univ Wollongong, Inst Supercond & Elect Mat, Wollongong, NSW 2522, Australia

来源：

ELECTROCHIMICA ACTA | 1998年 / 44卷 / 2-3期

关键词：

Mg2Ni alloy; ball-milling; metal hydride electrode; discharge properties;

D O I：

10.1016/S0013-4686(98)00167-4

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

Mg2Ni alloy prepared by induction was ball-milled with 3 wt% metallic cobalt powder. The effect of the ball-milling on the alloy structure and surface image aias examined by X-ray diffraction (XRD) and scanning electron microscopy (SEM). The mixed alloy powders before and after ball-milling were pressed on to a porous nickel foam as the active material of a metal hydride electrode. Electrochemical characteristics of the two kinds of electrodes were investigated at 25 degrees. The discharge capacity, cycle life and high-rate discharge ability showed that the electrode properties were improved greatly by the ball-milling of Mg2Ni and Co powder because of the changed structure and surface of the alloy. (C) 1998 Elsevier Science Ltd. All rights reserved.

引用

页码：353 / 355

页数：3

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