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. 08, 2020
Filed:
Jan. 04, 2018
Lg Chem, Ltd., Seoul-si, KR;
Sang Hun Kim, Daejeon, KR;
Yong Kim, Daejeon, KR;
Min Hyeong Kang, Daejeon, KR;
Cho Long Kim, Daejeon, KR;
Hyung Kyun Yu, Daejeon, KR;
Ji Hoon Lee, Daejeon, KR;
Yong Su Choi, Daejeon, KR;
Soo Ji Hwang, Daejeon, KR;
LG Chem, Ltd., Seoul, KR;
Abstract
A battery cell includes an electrode assembly and a battery case. The electrode assembly includes a positive electrode, a negative electrode, and a separator interposed between the positive electrode and the negative electrode. The battery case includes an upper case and a lower case, at least one of the upper case and the lower case being provided with a receiving part, in which the electrode assembly is mounted. One end of each of electrode tabs extending from electrode plates of the electrode assembly is coupled to a corresponding end of an electrode lead, which protrudes outward from the battery case. The electrode lead is provided with at least one notch part configured to rupture in response to expansion deformation of the battery case when the pressure in the battery cell increases to achieve the electrical cutoff of the battery.