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. 30, 2025
Filed:
Jun. 23, 2020
Sanyo Electric Co., Ltd., Osaka, JP;
Ryoichi Wakimoto, Hyogo, JP;
SANYO ELECTRIC CO., LTD., Osaka, JP;
Abstract
A battery includes: an electrode body obtained by stacking a positive electrode plate and a negative electrode plate with a separator interposed therebetween, the positive electrode plate including a first positive electrode tab group; an exterior body having an opening and housing the electrode body; a sealing plate sealing the opening: a positive electrode terminal attached to the sealing plate; and a substantially plate-shaped positive electrode current collector arranged substantially parallel to the sealing plate between the electrode body and the sealing plate and electrically connected to the positive electrode terminal. A positive electrode tab group of the electrode body is welded to a surface of the positive electrode current collector facing the electrode body, and a second tape covers an area corresponding to the back of a welding area of the positive electrode tab group on the surface of the positive electrode current collector facing the sealing plate.