公开(公告)号：US11824209B2

公开(公告)日：2023-11-21

申请号：US18070894

申请日：2022-11-29

Applicant: SK ON CO., LTD.

Inventor： Tae Il Kim ,  Jae Man Seo ,  Jeong Sam Son ,  Gyu Jin Chung

IPC: H01M50/10 ,  H01M50/105 ,  H01M50/211 ,  H01M50/20 ,  H01M50/148

CPC classification number: H01M50/10 ,  H01M50/105 ,  H01M50/148 ,  H01M50/20 ,  H01M50/211

Abstract: A pouch-type secondary battery includes an electrode assembly; and a pouch member comprising an accommodating portion configured to accommodate the electrode assembly therein, a sealing portion formed at an edge of the accommodating portion, and an indent portion formed of a cutting edge cut at a plurality of angles and a rounded edge cut to connect the cutting edges adjacent to each other in a portion of the sealing portion corresponding to a vertex of the accommodating portion.