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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 12744271 B1

PDFFull Text
Date of Patent:
Sep. 22, 2026

Filed:

Mar. 29, 2022

Cylindrical secondary battery

Applicant:

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

Inventors:

Hyun Ki Jung, Yongin-si, KR;

Byung Chul Park, Yongin-si, KR;

Gun Gue Park, Yongin-si, KR;

Gwan Hyeon Yu, Yongin-si, KR;

Jin Young Moon, Yongin-si, KR;

Kyung Rok Lee, Yongin-si, KR;

Myung Seob Kim, Yongin-si, KR;

Sung Gwi Ko, Yongin-si, KR;

Woo Hyuk Choi, Yongin-si, KR;

Assignee:

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

Attorney:

Womble Bond Dickinson (US) LLP

Primary Examiner:

Patricia L Hailey

Int. Cl.
CPC ...
H01M 50/186 (2021.01); H01M 50/107 (2021.01); H01M 50/152 (2021.01); H01M 50/179 (2021.01); H01M 50/184 (2021.01); H01M 50/197 (2021.01); H01M 50/198 (2021.01); H01M 50/545 (2021.01); H01M 50/559 (2021.01); H01M 50/564 (2021.01); H01M 50/588 (2021.01); H01M 50/593 (2021.01);
U.S. Cl.
CPC ...
H01M 50/186 (2021.01); H01M 50/107 (2021.01); H01M 50/152 (2021.01); H01M 50/179 (2021.01); H01M 50/184 (2021.01); H01M 50/197 (2021.01); H01M 50/198 (2021.01); H01M 50/545 (2021.01); H01M 50/559 (2021.01); H01M 50/564 (2021.01); H01M 50/588 (2021.01); H01M 50/593 (2021.01);
Abstract

An embodiment of the present invention relates to a cylindrical secondary battery in which a positive electrode terminal is adhered and fixed to a cylindrical can by an insulating sheet, and thus sealing between the cylindrical can and the positive electrode terminal can be facilitated due to an increased contact area. Disclosed in an embodiment is a cylindrical secondary battery comprising an electrode assembly that has a positive electrode plate, a separator, and a negative electrode plate, a cylindrical can that has the electrode assembly accommodated therein and a lower end thereof open, and is electrically connected to the negative electrode plate, a positive electrode terminal that penetrates the upper surface of the cylindrical can to be electrically connected to the positive electrode plate, a cap plate that seals the lower end of the cylindrical can, and an insulation sheet that adheres the lower part of the positive electrode terminal to the lower surface of the upper surface part of the cylindrical can to seal the inside of the cylindrical can.

Find Patent Forward Citations

Jung, Hyun. (2026). Cylindrical secondary battery (U.S. Patent No. 12744271). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12744271

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

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