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:
Oct. 15, 2013
Filed:
Jun. 08, 2012
Masato Onishi, Toyohashi, JP;
Shinichi Sakai, Toyohashi, JP;
Masaru Doutai, Kosai, JP;
Masaru Kobayashi, Toyohashi, JP;
Hiroaki Arai, Hamamatsu, JP;
Masato Onishi, Toyohashi, JP;
Shinichi Sakai, Toyohashi, JP;
Masaru Doutai, Kosai, JP;
Masaru Kobayashi, Toyohashi, JP;
Hiroaki Arai, Hamamatsu, JP;
Panasonic EV Energy Co., Ltd., Kosai-shi, JP;
Abstract
A battery unit is housed in a metallic battery case. In the battery unit, current collectors having bent portions on both sides are fixed to face surfaces of an electrode plate group of a prismatic battery. The portions of the battery case, which correspond to the bent portions, are pressed in a thickness direction. Under the pressure, a short circuit inspection for a short circuit between the battery case and the current collectors of the battery unit is executed. When a projected object exists on the bent portion, a short circuit is generated between the battery case and the current collector by pressing so that a short circuit failure caused by a shape of the current collector can be detected.