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:
Sep. 18, 2012
Filed:
Jul. 08, 2008
Tsuyoshi Hatanaka, Wakayama, JP;
Kenichi Nishibata, Wakayama, JP;
Tsuyoshi Hatanaka, Wakayama, JP;
Kenichi Nishibata, Wakayama, JP;
Panasonic Corporation, Osaka, JP;
Abstract
A non-aqueous electrolyte secondary battery of the present invention comprises a long core member and a material mixture layer formed thereon. The electrode plate has an exposed part of the core member formed along one side which is parallel to the longitudinal direction of the core member. The material mixture layer comprises a material that can absorb and desorb lithium ions. A porous film is formed on at least a part of the exposed part of the core member adjacent to an edge face of the material mixture layer and on the material mixture layer and is parallel to the exposed portion of the core member, and the thickness of the porous film is greater at the edge face of the material mixture layer which is parallel to the exposed part of the core member and located on the side of the exposed part of the core member than at a central portion of the material mixture layer in the width direction thereof.