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:
Dec. 30, 2025
Filed:
Mar. 27, 2019
Panasonic Corporation, Osaka, JP;
Sanyo Electric Co., Ltd., Osaka, JP;
Shinya Geshi, Osaka, JP;
Oose Okutani, Hyogo, JP;
PANASONIC HOLDINGS CORPORATION, Osaka, JP;
PANASONIC ENERGY CO., LTD., Osaka, JP;
Abstract
A battery including: a battery can including a cylindrical portion, a bottom wall closing one end of the cylindrical portion, and an open rim continuing to the other end of the cylindrical portion; an electrode body housed in the cylindrical portion; and a sealing body fixed to the open rim so as to seal an opening defined by the open rim. The sealing body includes a sealing plate, and a gasket disposed at a peripheral portion of the sealing plate. The gasket has an inner ring portion disposed on the peripheral portion on a side facing the electrode body, an outer ring portion disposed on the peripheral portion on a side opposite to the side facing the electrode body, and a side wall portion covering an end surface of the peripheral portion. The sealing plate and the gasket are integrally molded to be in close contact with each other.