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. 12, 2023
Filed:
Jul. 05, 2018
Panasonic Intellectual Property Management Co., Ltd., Osaka, JP;
Takeshi Enomoto, Osaka, JP;
Kazutoshi Kohira, Hyogo, JP;
Abstract
A cylindrical battery with an opening sealing body that seals an opening of a battery can. The opening sealing body includes a valve member, a metal plate disposed on an inner side of the battery with respect to the valve member, and an annular insulating member interposed between the valve member and the metal plate. The valve member and the metal plate are connected to each other at respective central portions. The valve member has an annular thin-walled portion which is deformable when an internal pressure of the battery increases. The metal plate and the insulating member have respective holes which communicate with each other. The insulating member has a section that covers a surface, on the valve member side, of the metal plate, and a section that is provided subsequent to the section and covers a lateral surface of the hole of the metal plate.