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:
Sep. 14, 2004

Filed:

Oct. 19, 2001
Applicant:
Inventors:

Yukihiro Okada, Katano, JP;

Miho Kayama, Hirakata, JP;

Yoichiro Tsuji, Katano, JP;

Assignee:

Other;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01M 4/18 ;
U.S. Cl.
CPC ...
H01M 4/18 ;
Abstract

A method of producing an electrode alloy powder is disclosed, wherein, to provide an electrode alloy powder capable of yielding an alkaline storage battery excellent in high-rate discharge property, self-discharge property and cycle life, a first step of immersing a starting powder comprising a hydrogen storage alloy containing 20 to 70 wt % of Ni in an aqueous solution containing 30 to 80 wt % of sodium hydroxide at a temperature of 90° C. or higher and a second step of washing with water the powder which has been subjected to the first step are conducted.


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