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:
Mar. 17, 2026

Filed:

Jul. 26, 2021
Applicant:

Lg Energy Solution, Ltd., Seoul, KR;

Inventors:

Ik Jong Lee, Daejeon, KR;

Duk Hyun Ryu, Daejeon, KR;

Jung Hoon Kim, Daejeon, KR;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01M 50/383 (2021.01); H01M 10/0587 (2010.01); H01M 50/171 (2021.01); H01M 50/24 (2021.01);
U.S. Cl.
CPC ...
H01M 50/383 (2021.01); H01M 10/0587 (2013.01); H01M 50/171 (2021.01); H01M 50/24 (2021.01);
Abstract

A secondary battery includes an electrode assembly in which electrodes and separators are alternately stacked to be wound, a can configured to accommodate the electrode assembly therein, having an opening in an upper end thereof, and provided with a beading part that is bent inward to form a recessed groove, a cap assembly seated on the beading part to cover the opening of the can, an extinguishing agent accommodated in the recessed groove to extinguish ignition when the secondary battery is ignited, and a sealing part configured to seal the recessed groove.


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Lee, Ik. (2026). Secondary battery (U.S. Patent No. 12580271). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12580271

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