{"title":"Studies on the electrochemical impedance spectroscopy of Zr-based Laves phase metal hydride electrodes","authors":"J. Chen, S. Dou, D. Bradhurst, H. Liu","doi":"10.1109/BCAA.1997.574123","DOIUrl":null,"url":null,"abstract":"The impedance spectra of Zr(V/sub 0.4/Ni/sub 0.6/)/sub 2/, Zr(V/sub 0.2/Mn/sub 0.2/Ni/sub 0.6/)/sub 2/, Zr(V/sub 0.2/Mn/sub 0.2/Ni/sub 0.55/Si/sub 0.05/)/sub 2/ alloys for Ni-MH batteries have been investigated. An equivalent circuit for the reaction of an MH electrode is proposed. The results reveal that: (1) the additions of Mn and Si have significant effects on the reaction resistances of the alloys; (2) Ni powder is an appropriate additive material in the manufacturing process of an MH electrode; and (3) the amounts of Ni powder in the alloy electrode also should be considered in the practical utilisation.","PeriodicalId":344507,"journal":{"name":"The Twelfth Annual Battery Conference on Applications and Advances","volume":"37 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"1997-01-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"2","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"The Twelfth Annual Battery Conference on Applications and Advances","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/BCAA.1997.574123","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 2
Abstract
The impedance spectra of Zr(V/sub 0.4/Ni/sub 0.6/)/sub 2/, Zr(V/sub 0.2/Mn/sub 0.2/Ni/sub 0.6/)/sub 2/, Zr(V/sub 0.2/Mn/sub 0.2/Ni/sub 0.55/Si/sub 0.05/)/sub 2/ alloys for Ni-MH batteries have been investigated. An equivalent circuit for the reaction of an MH electrode is proposed. The results reveal that: (1) the additions of Mn and Si have significant effects on the reaction resistances of the alloys; (2) Ni powder is an appropriate additive material in the manufacturing process of an MH electrode; and (3) the amounts of Ni powder in the alloy electrode also should be considered in the practical utilisation.
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