公开(公告)号：US20230271355A1

公开(公告)日：2023-08-31

申请号：US18016169

申请日：2020-07-15

Applicant: LG ELECTRONICS INC.

Inventor： Jaekun KIM ,  Manin BAEK ,  Taehoon YOO ,  Hyunwoo SO ,  Jaehyun RA

IPC: B29C43/36 ,  B29C53/06 ,  B29C43/58 ,  B29C43/02

CPC classification number: B29C43/36 ,  B29C53/06 ,  B29C43/58 ,  B29C43/02 ,  B29C2043/3272

Abstract: Press mold for secondary battery a press upper mold; at least two overforming punches arranged to be raised and lowered in the press upper mold; a plurality of forming punches arranged in the press upper mold to be raised and lowered between the overforming punches and the press upper mold; a press lower mold provided with a bridge forming protrusion protruding from an upper surface thereof; the bridge forming protrusion configured to form a bridge to be protruded from the pouch sheet, and a pouch sheet holder disposed to be raised and lowered on the press lower mold and fixing the pouch sheet together with the press upper mold, wherein the plurality of forming punches include a center punch in which a bridge forming groove into which a bridge is inserted is recessed on a lower surface.