Electrochemical impedance spectroscopy study of Ni/MH batteries

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• 作者：Cheng ; Shaoan ; Zhang ; Jianqing ; Zhao ; Minhua ; Cao ; Chunan
• 关键词：Nickel/metal hydride battery ; Electrochemical impedance spectroscopy ; Interface structure ; Surface treatment
• 刊名：Journal of Alloys and Compounds
• 出版年：1999
• 期刊代码：45_09258388
• 类别：ms
• 出版时间：December 20, 1999
• 卷：293
• 期：Complete
• 页码：814-820
• 文件大小：218 K

摘要

An electrochemical impedance spectroscopy study of Ni/MH batteries is reported. The surface structure change of MH electrodes during activation and charge/discharge cyclings of a Ni/MH battery is discussed by fitting EIS data to an equivalent circuit. The effect of surface treatment of hydrogen storage alloys on the electrochemical parameters of the electrodes is also reported.