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.:
Date of Patent:
Sep. 29, 2026
Filed:
Apr. 21, 2023
SK on Co., Ltd., Seoul, KR;
Myeong Seon Kwon, Daejeon, KR;
SK ON CO., LTD., Seoul, KR;
Abstract
A secondary battery includes an electrode assembly to which an electrode lead is bonded, a pouch case including a case body portion accommodating the electrode assembly in such a manner that a portion of the electrode lead protrudes externally, and a cover portion covering the case body portion, and a sealing portion in which the body portion and an outer circumferential portion of the cover portion of the pouch case contact each other and are sealed by thermal fusion. A polymer compound layer is attached on at least one of an upper surface and a lower surface of the electrode lead protruding externally. The polymer compound layer includes a thermally expandable polymer compound of composite of a hydroxy group-containing compound and silica, or at least one heat-shrinkable polymer compound selected from the group consisting of polyphenylene ether (PPE), polycarbonate (PC), polyoxymethylene (POM) and polyamide (PA).
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile