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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.:

US 10910673 B1

PDFFull Text
Date of Patent:
Feb. 02, 2021

Filed:

Jun. 27, 2018

Rectangular secondary battery and method of manufacturing the same

Applicant:

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

Inventors:

Ryoichi Wakimoto, Hyogo, JP;

Hiroshi Takabayashi, Hyogo, JP;

Assignee:

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

Attorney:

Westerman, Hattori, Daniels & Adrian, LLP

Primary Examiner:

Gary D Harris

Int. Cl.
CPC ...
H01M 10/0585 (2010.01); H01M 2/26 (2006.01); H01M 4/70 (2006.01); H01M 2/08 (2006.01); H01M 2/18 (2006.01); H01M 2/30 (2006.01); H01M 2/34 (2006.01); H01M 10/04 (2006.01); H01M 4/525 (2010.01); H01M 4/505 (2010.01); H01M 4/583 (2010.01); H01M 4/02 (2006.01);
U.S. Cl.
CPC ...
H01M 10/0585 (2013.01); H01M 2/08 (2013.01); H01M 2/18 (2013.01); H01M 2/26 (2013.01); H01M 2/30 (2013.01); H01M 2/348 (2013.01); H01M 4/70 (2013.01); H01M 10/0413 (2013.01); H01M 4/505 (2013.01); H01M 4/525 (2013.01); H01M 4/583 (2013.01); H01M 2004/027 (2013.01); H01M 2004/028 (2013.01); H01M 2200/103 (2013.01); H01M 2200/20 (2013.01); H01M 2220/20 (2013.01);
Abstract

An electrode body, which includes a positive electrode plate and a negative electrode plate, includes a positive-electrode tab group that is composed of a plurality of positive electrode tabs. The positive-electrode tab group is disposed between a sealing plate and an electrode body, and a positive-electrode current collector includes a base portion and a tab connection portion that is folded from an end of the base portion. The base portion of the positive-electrode current collector is connected to a positive electrode terminal, and the tab connection portion of the positive-electrode current collector is connected to the positive-electrode tab group. A fuse portion is formed in the positive-electrode current collector, and a first-insulator second region of a first insulator, which is connected to an inner insulator, is disposed between the base portion and the tab connection portion.

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