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. 09, 2025
Filed:
Nov. 14, 2018
Panasonic Corporation, Kadoma, JP;
Kiyomi Kozuki, Osaka, JP;
PANASONIC HOLDINGS CORPORATION, Osaka, JP;
Abstract
A rectangular battery with a plurality of stacked positive electrode plates. Each positive electrode plate includes a positive electrode active material arrangement portion and a positive electrode collector tab, the positive electrode active material arrangement portion including a plate-like core body and a positive electrode active material containing layer that is provided at the core body, the collector tab being integrated with the core body and protruding from the positive electrode active material arrangement portion. Each positive electrode collector tab includes a curved portion that is positioned between the corresponding positive electrode active material arrangement portion and the positive electrode collector terminal in a Z direction (a region in the Z direction indicated by B), and has at least a part thereof curved.