The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Jan. 09, 2001

Filed:

Jul. 07, 1998
Applicant:
Inventors:

Yoshitaka Baba, Itano-gun, JP;

Motoo Tadokoro, Itano-gun, JP;

Takayuki Yano, Itano-gun, JP;

Assignee:

Sanyo Electric Co., Ltd., Osaka-fu, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01M 4/52 ; H01M 4/32 ;
U.S. Cl.
CPC ...
H01M 4/52 ; H01M 4/32 ;
Abstract

A nickel electrode for an alkaline storage cell manufactured by the steps of precipitating cobalt hydroxide on the surface of a first nickel active material essentially composed of nickel hydroxide, subjecting the first nickel active material to heat treatment under the presence of an alkaline solution and oxygen to that the cobalt hydroxide precipitated on the first nickel active material is disordered to its crystal structure and is formed in a higher order cobalt compound containing alkaline cation, and mixing the first nickel active material subjected to the alkali heat treatment with a second nickel hydroxide active material essentially composed of nickel hydroxide without forming any conductive substance of lower in dissolubility to the alkaline solution.


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