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Electrochemically impregnated aluminum-stabilized alpha-nickel hydroxide electrodes

Dixit, Mridula and Jayashree, RS and Kamath, P Vishnu and Shukla, AK and Kumar, V Ganesh and Munichandraiah, N (1999) Electrochemically impregnated aluminum-stabilized alpha-nickel hydroxide electrodes. In: Electrochemical and Solid-State Letters, 2 (4). pp. 170-171.

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Abstract

Nickel-positive electrodes obtained by electrochemical impregnation of aluminum-substituted alpha-nickel hydroxide are found to deliver a reversible discharge capacity of ca. 450 mAh/g. This is much higher than the capacity of beta-nickel hydroxide electrodes [200 mAh/g: this work; 225 mAh/g: Dixit et al., J. Power Sources, 63, 167 (1996)] prepared under identical conditions and pasted electrodes comprising cobalt-doped nickel hydroxide [345 mAh/g: Faure et al., J. Power Sources, 36, 497 (1991)]. These observations suggest that the theoretical target-capacity for high-performance nickel-positive electrodes must be revised from the currently accepted value of 289 mAh/g (le exchange) to 491 mAh/g [1.7e exchange: Corrigan and Knight, J. Electrochem. Soc., 136, 613 (1989)]. (C) 1999 The Electrochemical Society. S1099-0062(98)08-044-4. All rights reserved.

Item Type: Journal Article
Additional Information: Copyright of this article belongs to The Electrochemical Society.
Department/Centre: Division of Chemical Sciences > Solid State & Structural Chemistry Unit
Division of Chemical Sciences > Inorganic & Physical Chemistry
Date Deposited: 03 Jun 2009 04:37
Last Modified: 19 Sep 2010 05:26
URI: http://eprints.iisc.ernet.in/id/eprint/19092

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