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:
Nov. 09, 1999
Filed:
Sep. 18, 1997
Applicant:
Inventors:
Jun Matsumura, Otsu, JP;
Kuninori Omura, Kamakura, JP;
Chikara Kasai, Chula Vista, CA (US);
Sadaaki Yokoh, Yokohama, JP;
Hitoshi Mikuriya, Chigasaki, JP;
Assignee:
Matsushita Electric Industrial Co, Ltd., Osaka-fu, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01M / ; H01M / ;
U.S. Cl.
CPC ...
429233 ; 429233 ; 429235 ; 296235 ;
Abstract
An electrode for a battery with small variations in the discharge capacity and excellent reliability is disclosed. It comprises a sheet of porous metal substrate having three-dimensional communicating spaces for containing an active material. The substrate has a layer filled with the active material and occupying most of the thickness of the electrode, and a layer of current collector composed of a metallic foil which is not filled with active material and has reduced porosity.