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:
Aug. 06, 1996
Filed:
Oct. 27, 1994
Applicant:
Inventors:
Nobuyuki Yanagihara, Hirakata, JP;
Hiroshi Kawano, Ibaraki, JP;
Takayuki Hayashi, Kadoma, JP;
Masato Tsuji, Kyoto, JP;
Assignee:
Matsushita Electric Industrial Co., Ltd., Kadoma, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01M / ;
U.S. Cl.
CPC ...
429241 ; 29-2 ; 296235 ; 4271263 ;
Abstract
The electrode comprises a metal substrate and a coated layer of an active material provided on one or both faces of the substrate. The metal substrate is a metal sheet having a plurality of punched holes. The punched holes have burrs along their peripheries so that the apparent thickness including the burrs is at least twice the original thickness of the metal sheet. The burrs improve the engagement between the metal substrate and the coated layer.