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1999•Journal of The Electrochemical SocietyOpen access

Zinc‐Substituted α‐Nickel Hydroxide as an Electrode Material for Alkaline Secondary Cells

Mridula Dixit, P. Vishnu Kamath, Jagannatha Gopalakrishnan

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Abstract

Double hydroxides of the formula, having the same structure as that of α‐nickel hydroxide have been synthesized by partial substitution of zinc for nickel. The hydroxide having the composition x = 0.25 exhibits prolonged stability in 6 M KOH. Pasted electrodes comprising this material are rechargeable with a stabilized reversible discharge capacity of of nickel even under suboptimal conditions of electrode fabrication. This compares favorably with the capacity values achieved for β‐nickel hydroxide ( , This work; , Delahaye‐Vidal and Figlarz; , theoretical). © 1999 The Electrochemical Society. All rights reserved.

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Double hydroxides of the formula, having the same structure as that of α‐nickel hydroxide have been synthesized by partial substitution of zinc for nickel. The hydroxide having the composition x = 0.25 exhibits prolonged stability in 6 M KOH. Pasted electrodes comprising this material are rechargeable with a stabilized reversible discharge capacity of of nickel even under suboptimal conditions of electrode fabrication. This compares favorably with the capacity values achieved for β‐nickel hydroxide ( , This work; , Delahaye‐Vidal and Figlarz; , theoretical). © 1999 The Electrochemical Society. All rights reserved.

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Available abstract

Double hydroxides of the formula, having the same structure as that of α‐nickel hydroxide have been synthesized by partial substitution of zinc for nickel. The hydroxide having the composition x = 0.25 exhibits prolonged stability in 6 M KOH. Pasted electrodes comprising this material are rechargeable with a stabilized reversible discharge capacity of of nickel even under suboptimal conditions of electrode fabrication. This compares favorably with the capacity values achieved for β‐nickel hydroxide ( , This work; , Delahaye‐Vidal and Figlarz; , theoretical). © 1999 The Electrochemical Society. All rights reserved.

Key concepts: Hydroxide, Nickel, Alkaline battery, Zinc, Electrochemistry, Electrode, Zinc hydroxide, Inorganic chemistry

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