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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 12689066 B1

PDFFull Text
Date of Patent:
Jul. 21, 2026

Filed:

Nov. 11, 2021

Secondary battery

Applicant:

Samsung Sdi Co., Ltd., Yongin-si, KR;

Inventors:

Geon Kyu Sung, Yongin-si, KR;

Dong Jin An, Yongin-si, KR;

Ho Jae Lee, Yongin-si, KR;

Hyun Ki Jung, Yongin-si, KR;

Ye Jin Cho, Yongin-si, KR;

Yeon Hwa Lee, Yongin-si, KR;

Assignee:

Samsung SDI Co., Ltd., Yongin-si, KR;

Attorney:

Womble Bond Dickinson (US) LLP

Primary Examiner:

Eugenia Wang

Int. Cl.
CPC ...
H01M 10/0587 (2010.01); H01M 4/13 (2010.01); H01M 10/04 (2006.01); H01M 50/107 (2021.01); H01M 50/152 (2021.01); H01M 50/531 (2021.01);
U.S. Cl.
CPC ...
H01M 10/0587 (2013.01); H01M 4/13 (2013.01); H01M 10/0468 (2013.01); H01M 50/107 (2021.01); H01M 50/152 (2021.01); H01M 50/531 (2021.01);
Abstract

A technical problem to be solved according to the present disclosure is to provide a secondary battery capable of minimizing contact resistance between a base finish part of an electrode assembly and a can even when a deviation in the winding radius of the electrode assembly occurs, by positioning a swelling tape inside the electrode assembly. To this end, the present disclosure provides a secondary battery including: a cylindrical can, an electrode assembly having a base finish part electrically contacting the cylindrical can; a cap assembly sealing the electrode assembly by blocking the cylindrical can; and a swelling tape positioned inside the base finish part to press the base finish part into the cylindrical can.

Find Patent Forward Citations

Sung, Geon. (2026). Secondary battery (U.S. Patent No. 12689066). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12689066

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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