Zinc-substituted alpha-nickel hydroxide as an electrode material for alkaline secondary cells

Dixit, M and Kamath, PV and Gopalakrishnan, J (1999) Zinc-substituted alpha-nickel hydroxide as an electrode material for alkaline secondary cells. In: Journal of the Electrochemical Society, 146 (1). pp. 79-82.

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Abstract

Double hydroxides of the formula, Ni1-xZn2x (OH)(2) (CO3)(x). nH(2)O (x = 0.1 to 0.25) having the same structure as that of alpha-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 410 +/- 15 mAh g(-1) of nickel even under suboptimal conditions of electrode fabrication. This compares favorably with the capacity values achieved for beta-nickel hydroxide (221 mAh g(-1)', This work; 297 mAh g(-1), Delahaye-Vidal and Figlarz;(1) 456 mAh g(-1), theoretical). (C) 1999 The Electrochemical Society. S0013-4651(98)01-071-4. All rights reserved.

Item Type:	Journal Article
Publication:	Journal of the Electrochemical Society
Publisher:	The Electrochemical Society
Additional Information:	Copyright of this article belongs to The Electrochemical Society.
Department/Centre:	Division of Chemical Sciences > Solid State & Structural Chemistry Unit
Date Deposited:	03 Aug 2011 07:20
Last Modified:	03 Aug 2011 07:20
URI:	http://eprints.iisc.ac.in/id/eprint/38921

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