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.

Date of Patent:
Jan. 07, 2025

Filed:

Feb. 22, 2018
Applicant:

Sanyo Electric Co., Ltd., Daito, JP;

Inventors:

Ryoichi Wakimoto, Hyogo, JP;

Hiroyuki Yamada, Hyogo, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01M 50/186 (2021.01); H01M 4/66 (2006.01); H01M 50/16 (2021.01); H01M 50/176 (2021.01); H01M 50/184 (2021.01); H01M 50/191 (2021.01); H01M 50/536 (2021.01); H01M 50/54 (2021.01); H01M 50/55 (2021.01); H01M 50/553 (2021.01); H01M 50/562 (2021.01); H01M 50/566 (2021.01);
U.S. Cl.
CPC ...
H01M 4/661 (2013.01); H01M 50/176 (2021.01); H01M 50/184 (2021.01); H01M 50/186 (2021.01); H01M 50/553 (2021.01); H01M 50/16 (2021.01); H01M 50/191 (2021.01); H01M 50/536 (2021.01); H01M 50/54 (2021.01); H01M 50/55 (2021.01); H01M 50/562 (2021.01); H01M 50/566 (2021.01);
Abstract

A rectangular secondary battery includes a rectangular casing that contains an electrode body, a sealing plate that seals an opening of the rectangular casing, a first positive electrode tab group that is composed of a plurality of positive electrode tabs, a positive electrode terminal that is attached to the sealing plate, a second positive electrode current collector that constitutes a positive electrode current collector member that is electrically connected to the first positive electrode tab group and the positive electrode terminal, and a second insulator. The second insulator includes a base portion that is disposed between the sealing plate and the second positive electrode current collector. The first positive electrode tab group is bent and connected to the second positive electrode current collector, the region being disposed along the sealing plate. A first wall portion is disposed between the first positive electrode tab group and the rectangular casing.


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