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:
Mar. 17, 2026
Filed:
Dec. 05, 2023
Lg Energy Solution, Ltd., Seoul, KR;
Sang Hun Kim, Daejeon, KR;
Gyung Soo Kang, Daejeon, KR;
Jae Ho Lee, Daejeon, KR;
Hyung Kyun Yu, Daejeon, KR;
Ji Sun Lee, Daejeon, KR;
LG Energy Solution, Ltd., Seoul, KR;
Abstract
Disclosed herein is a pouch-type battery case including a pouch film laminate. A cup part can include a bottom surface and a side surface, and a flat part disposed to surround the cup part. The side surface can include a first curved portion, a planar portion, and a second curved portion, the pouch film laminate can include a base material layer, a sealant layer and gas barrier layer disposed therebetween. The pouch-type battery case is configured to satisfy Equation 1: 0.01≤D/{A−(R+R+C)}, where D is the gas barrier layer thickness, A is a vertical depth of the cup part, Ris a curvature radius of the first curved portion between the bottom surface and the flat part, Ris a curvature radius of the second curved portion between the planar portion and the flat part, and C is a horizontal length of the planar portion.