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. 10, 2013
Filed:
Mar. 10, 2010
Kazuaki Urano, Otsu, JP;
Fujio Hirano, Hiratsuka, JP;
Kazuaki Urano, Otsu, JP;
Fujio Hirano, Hiratsuka, JP;
Hitachi Vehicle Energy, Ltd., Ibaraki, JP;
Abstract
A positive electrode sheet and a negative electrode sheet are laminated and wound around a shaft corewhile being insulated by a separator. Spreading operation platesP andN are fitted to both ends of the shaft corein a winding axis direction, and operation protrusionsA toB of the spreading operation platesP andN protrude from both flat end surfaces of a wound body. The spreading operation platesP andN are spread, so that laminate parts of a positive electrode connection partA and a negative electrode connection partA are pushed and extended outward on the flat end surfaces of the wound body, and V-shaped openingsV continuous with the innermost peripheries of the wound bodyare formed. The laminate parts are welded to positive and negative electrode current collectorsand
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile