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Crystal Chemistry and Electrochemical Behavior of New Manganese Substituted Nickel Hydroxides

Published online by Cambridge University Press:  16 February 2011

L. Guerlou-Demourgues
Affiliation:
Laboratoire de Chimie du Solide du CNRS and Ecole Nationale Supérieure de Chimie et Physique de Bordeaux, 351, cours de la Libération, 33405 Talence Cedex, FRANCE
C. Delmas
Affiliation:
Laboratoire de Chimie du Solide du CNRS and Ecole Nationale Supérieure de Chimie et Physique de Bordeaux, 351, cours de la Libération, 33405 Talence Cedex, FRANCE
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Abstract

Ageing of the manganese substituted nickel hydroxides in 5M-KOH electrolytic medium leadsto a structure interstratification which is related to spontaneous oxidation of trivalentmanganese ions to the tetravalent state, As far as the electrochemical behavior is concerned, the trend to interstratification has a positive influence on the stability of the capacity upon cycling. In addition, the chargeability is improved by the presence of manganese.

Type
Research Article
Copyright
Copyright © Materials Research Society 1995

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References

references

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