Impedance studies of nickel hydroxide microencapsulated by cobalt

被引：53

作者：

Wang, XY ^{[1
]}

Yan, J ^{[1
]}

Yuan, HT ^{[1
]}

Zhang, YS ^{[1
]}

Song, DY ^{[1
]}

机构：

[1] Nankai Univ, Inst New Energy Mat Chem, Tianjin 300071, Peoples R China

来源：

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY | 1999年 / 24卷 / 10期

关键词：

nickel hydroxide electrode; electroless cobalt plating; electrochemical impedance; conductivity;

D O I：

10.1016/S0360-3199(98)00130-X

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：

Nickel hydroxide is used as an active material in pasted-type nickel hydroxide electrodes for rechargeable alkaline batteries. The electrochemical impedance spectroscopes of different nickel hydroxide electrodes were measured. The results were analyzed using a standard equivalent circuit model including a Warburg impedance term. The Nyquist plots were used to interpret the characteristics of the different electrodes. The nickel hydroxide electrode deposited by cobalt has shown lower charge transfer resistance and higher electronic and protonic conductivity. (C) 1999 International Association for Hydrogen Energy. Published by Elsevier Science Ltd. All rights reserved.

引用

页码：973 / 980

页数：8

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