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.
Patent No.:
Date of Patent:
Jun. 07, 2005
Filed:
Dec. 10, 2001
Applicants:
Kiyoshi Hayashi, Toyohashi, JP;
Munehisa Ikoma, Shiki, JP;
Jun Matsumura, Otsu, JP;
Inventors:
Assignees:
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Toyota Jidosha Kabushiki Kaisha, Aichi, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01M004/32 ; H01M010/30 ;
U.S. Cl.
CPC ...
Abstract
A positive electrode plate for alkaline storage battery that does not swell very much even after repeated charge-discharge cycles and can be manufactured easily, a method for manufacturing the same, and an alkaline storage battery using the same are provided. A conductive support (nickel foam) and an active material (nickel hydroxide particles) that is supported by the support are provided. An intermediate part of a positive electrode plate has a larger porosity than surface parts thereof.