Electrochemical properties of Ti0.17Zr0.08V0.35Cr0.10Ni0.30 alloy electrode

被引：8

作者：

Chai, Yujun

Li, Zhiying

Yin, Wenya

Zhang, Xinbo

Zhao, Minshou ^{[1
]}

机构：

[1] Chinese Acad Sci, Changchun Inst Appl Chem, Key Lab Rare Earth Chem & Phys, Changchun 130022, Peoples R China

[2] Chinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Electroanalyt Chem, Changchun 130022, Peoples R China

来源：

JOURNAL OF APPLIED ELECTROCHEMISTRY | 2006年 / 36卷 / 07期

基金：

中国国家自然科学基金;

关键词：

electrochemical property; hydrogen storage alloy; metal hydride electrode; Ni-MH battery;

D O I：

10.1007/s10800-005-9047-1

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

The electrochemical properties of the Ti0.17Zr0.08V0.35Cr0.10Ni0.30 alloy electrode were investigated. This alloy has good cycle life at 303 K, 313 K, and even at 323 K, but the discharge capacity decreases gradually at 333 K with increasing cycle number. Both the charge-discharge efficiency and the charge-discharge voltage reduce. The electrochemical impendence spectra indicate that the charge-transfer resistance decreases while the exchange current density increases as temperature increases. The apparent activation energy of the charge-transfer reaction is about 50 kJ mol(-1), which is higher than that on the AB(5) type alloy electrode.

引用

页码：739 / 743

页数：5

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