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. 22, 2022
Filed:
Aug. 09, 2018
Lg Chem, Ltd., Seoul, KR;
Jong Pil Park, Daejeon, KR;
Seung Don Choi, Daejeon, KR;
LG Energy Solution, Ltd., Seoul, KR;
Abstract
A pouch type secondary battery includes: an electrode assembly having an electrode including a positive electrode, a negative electrode, and a separator laminated therein; a battery case having a pouch shape to accommodate the electrode assembly; an electrode tab connected to the electrode and protruding from one side of the electrode; a first electrode lead having one end connected to the electrode tab; a second electrode lead having one end connected to the other end of the first electrode lead and the other end protruding to outside the battery case; and a connection part bonding the first electrode lead to the second electrode lead to connect the first and second electrode leads to each other. In at least one of the first and second electrode leads, a notch is on a bonding surface on which the first and second electrode leads are bonded together through the connection part.