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:
Aug. 11, 2020
Filed:
May. 04, 2016
Lg Chem, Ltd., Seoul, KR;
Seung-Su Cho, Daejeon, KR;
Jung-Jin Kim, Daejeon, KR;
Jin-Young Kim, Daejeon, KR;
Gi-Su Jeong, Daejeon, KR;
Won-Seok Jeong, Daejeon, KR;
Seung-Don Choi, Daejeon, KR;
Won-Pill Hwang, Daejeon, KR;
LG Chem, Ltd., , KR;
Abstract
Provided is a pouch-type secondary battery that includes an electrode assembly equipped with an electrode tab, an electrode lead connected to the electrode tab, a pouch housing accommodating and sealing the electrode assembly such that the electrode lead is partially exposed, and first and second sealants within the pouch housing. The electrode lead includes a joint portion joined to the electrode tab, a terminal portion exposed to an outside of the pouch housing and a fuse portion between the joint portion and the terminal portion. The fuse portion includes a separating groove and a breaking portion connected to the separating groove for separating the terminal portion from the joint portion. The first sealant and the second sealant have shapes that are different from each other such that, when the pressure inside the secondary battery is increased, a stress applied to the pouch housing causes the breaking portion to break.