Alkaline battery and method for producing positive electrode material therefor

An alkaline battery of the present invention includes a positive electrode material mixture including nickel oxyhydroxide. The nickel oxyhydroxide includes a secondary particle with a crystal structure mainly composed of gamma-type at least a portion of the surface layer of the secondary particle, a...

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Bibliographic Details
Main Author KATO FUMIO,SAWADA KATSUYA,OKADA TADAYA,MUKAI YASUO,NOYA SHIGETO
Format Patent
LanguageEnglish
Published 11.04.2007
Subjects
BASIC ELECTRIC ELEMENTS
CHEMISTRY
COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSESC01D OR C01F
ELECTRICITY
INORGANIC CHEMISTRY
METALLURGY
PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY
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Summary:An alkaline battery of the present invention includes a positive electrode material mixture including nickel oxyhydroxide. The nickel oxyhydroxide includes a secondary particle with a crystal structure mainly composed of gamma-type at least a portion of the surface layer of the secondary particle, and with a crystal structure mainly composed of beta-type in the inner portion of the secondary particle. Based on the present invention, the advantage of the alkaline battery, i.e., excellence in discharge performance under high-load, can be kept and the conventional problem of storage characteristics can be improved.
Bibliography:Application Number: CN200580012707