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:
Nov. 23, 2021
Filed:
Apr. 01, 2019
Lg Chem, Ltd., Seoul, KR;
Byeong Kyu Lee, Daejeon, KR;
Cha Hun Ku, Daejeon, KR;
Jung Kwan Pyo, Daejeon, KR;
Jin Gon Kim, Daejeon, KR;
Tai Jin Jung, Daejeon, KR;
Won Nyeon Kim, Daejeon, KR;
LG CHEM, LTD., Seoul, KR;
Abstract
Discussed is a notching apparatus for a secondary battery that includes: a lower mechanism comprising a die and a die holder to which the die is fixed, the die engaging an electrode provided with a coating portion and a non-coating portion; a stripper including a first stripper pressing the coating portion and a pair of second strippers pressing and fixing the non-coating portion; an upper mechanism including a punch provided between the pair of second strippers and provided with a cutting blade cutting the non-coating portion disposed between the pair of second strippers and a punch holder allowing the punch to move in a direction of the lower mechanism; and a pressing member pressing the non-coating portion disposed between the pair of second strippers to increase in tension force when the non-coating portion is cut by the punch.