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    • AC impedance behaviour and state-of-charge dependence of Zr0¨5Ti0¨5V0¨6Cr0¨2Ni1¨2 metal-hydride electrodes

      S Rodrigues N Munichandraiah A K Shukla

      Volume 113 Issue 5-6 October 2001 pp 527-537

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      https://www.ias.ac.in/article/fulltext/jcsc/113/05-06/0527-0537

    • Keywords

       

      Hydrogen-storage alloy; metal-hydride electrode; AC impedance; AB2 alloys; state-of-charge

    • Abstract

       

      Metal-hydride electrodes made of an AB2 alloy of the composition Zr0¨5Ti0¨5V0¨6Cr0¨2Ni1¨2 are studied for AC impedance behaviour at several of their state-of-charge values. Impedance data at any state-of-chargecomprisetwoRC-time constants and accordingly are analysed by using a nonlinear-least-square-fitting procedure. Resistance of the electrode and frequency maximumf* of the lowfrequency semicircle are found useful for predicting state-of-charge of the metalhydride electrodes.

    • Author Affiliations

       

      S Rodrigues1 N Munichandraiah2 A K Shukla1

      1. Solid State and Structural Chemistry Unit, Indian Institute of Science, Bangalore - 560 012, India
      2. Department of Inorganic and Physical Chemistry, Indian Institute of Science, Bangalore - 560 012, India

    • Dates

       
      Published
      12 October 2001

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