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:
Feb. 27, 2024
Filed:
Dec. 08, 2021
Lg Energy Solution, Ltd., Seoul, KR;
Hun-Hee Lim, Daejeon, KR;
Sang-Hun Kim, Daejeon, KR;
Min-Hyeong Kang, Daejeon, KR;
Hyung-Kyun Yu, Daejeon, KR;
LG Energy Solution, Ltd., , KR;
Abstract
A secondary battery includes: an electrode assembly including electrode sheets and a separator interposed between the electrode sheets; a pouch-like battery casing in which the electrode assembly is received; an electrode lead connected to the electrode assembly and protruding out from the battery casing; and a lead film covering the electrode lead and interposed between the electrode lead and the battery casing, wherein the lead film includes an outer layer covering the electrode lead and an inner layer disposed inside of the outer layer, and the inner layer includes a material having a higher air permeability as compared to the outer layer.