Alkaline storage battery and method for treating the surface of the positive electrode active material

The present invention provides an alkaline storage battery which comprises a positive electrode prepared by filling a nickel hydroxide in a porous plaque as an active material, a negative electrode, a separator and an alkaline electrolyte, said positive electrode containing the nickel hydroxide as a...

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Bibliographic Details
Main Authors AKUTSU, NORIKATSU, YAO, TAKESHI, KATSUMOTO, MASUMI, YAMAMURA, YASUHARU
Format Patent
LanguageEnglish
French
German
Published 19.12.2007
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:The present invention provides an alkaline storage battery which comprises a positive electrode prepared by filling a nickel hydroxide in a porous plaque as an active material, a negative electrode, a separator and an alkaline electrolyte, said positive electrode containing the nickel hydroxide as a main component and a complex oxide of lithium and cobalt as a conductive agent. The lithium-cobalt complex oxide as a conductive agent is preferably represented by the formula Li x CoO 2 (x is 0.2-0.9). A method for treating the surface of the positive electrode active material which comprises the step of forming a coating layer of cobalt hydroxide on nickel hydroxide powders is also disclosed.
Bibliography:Application Number: EP19980104276