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:
Jul. 12, 2011
Filed:
Jul. 03, 2007
Kiyomi Kozuki, Osaka, JP;
Tadashi Imai, Osaka, JP;
Yasushi Hirakawa, Osaka, JP;
Takashi Nonoshita, Osaka, JP;
Kiyomi Kozuki, Osaka, JP;
Tadashi Imai, Osaka, JP;
Yasushi Hirakawa, Osaka, JP;
Takashi Nonoshita, Osaka, JP;
Panasonic Corporation, Osaka, JP;
Abstract
An electrode grouphaving a positive electrode plate and a negative electrode plate arranged with a porous insulating layer interposed therebetween and end portions of the positive and negative electrode plates protruding from the porous insulating layer is prepared, and current collector platesandeach of which is provided with a projectionhaving a gapformed therein is prepared. With the end portionof the electrode plate protruding from the porous insulating layerkept in contact with a principle surface of the current collector platesand, the projectionis locally heated to join the end portionof the electrode plate and the current collector platesand. the end portionof the electrode plate is welded to the current collector platesandwith a fused material obtained by fusing the projection