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:
Nov. 04, 2025
Filed:
Dec. 20, 2021
Panasonic Intellectual Property Management Co., Ltd., Osaka, JP;
Toshitaka Kobayashi, Osaka, JP;
Hiroki Hayashi, Kyoto, JP;
Eiko Ishii, Osaka, JP;
Hideki Shimamoto, Kyoto, JP;
Ryota Morioka, Kyoto, JP;
Abstract
A power storage device of the present disclosure includes: a power storage element; a case that houses the power storage element, the case having a bottomed tubular shape and including an opening at one end of the case; and a sealing body that seals the opening. The case includes a first pressing part and a second pressing part in a vicinity of the opening. The first pressing part presses a side surface of the sealing body and protrudes to an inside of the case, and the second pressing part presses an upper surface of the sealing body. The sealing body includes a slit on the upper surface of the sealing body. The slit extends radially inward of the case with respect to the second pressing part and opens at the side surface of the sealing body.