公开(公告)号：US20210086388A1

公开(公告)日：2021-03-25

申请号：US16629866

申请日：2019-04-01

Applicant: LG CHEM, LTD.

Inventor： Byeong Kyu LEE ,  Cha Hun KU ,  Jung Kwan PYO ,  Jin Gon KIM ,  Tai Jin JUNG ,  Won Nyeon KIM

IPC: B26D7/14 ,  H01M2/02 ,  H01M4/04 ,  B26F1/12

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.