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. 21, 2021
Filed:
Feb. 25, 2020
Kabushiki Kaisha Toshiba, Minato-ku, JP;
Hirokiyo Mamyoda, Kashiwazaki, JP;
Tatsuya Hashimoto, Kashiwazaki, JP;
KABUSHIKI KAISHA TOSHIBA, Minato-ku, JP;
Abstract
According to one embodiment, in a secondary battery, a first container member has an accommodating space defined by a bottom wall and side walls, and includes a flange, defining an edge of the opening of the accommodating space, at a portion opposite to the bottom wall. The electrode group is accommodated in the accommodating space, and the second container member is arranged to face the flange. A welding part, provided on an outer side relative to the edge of the opening, hermetically welds the flange and the second container member to seal the accommodating space. A projection, provided on one of the flange and the second container member between the welding part and the edge of the opening, projects toward another of the flange and the second container member.