公开(公告)号：US20250149724A1

公开(公告)日：2025-05-08

申请号：US18780376

申请日：2024-07-22

Applicant: Samsung SDI Co., Ltd.

Inventor： Kyugil Choi ,  Minyoung Jang ,  Hyun Cho

IPC: H01M50/342 ,  H01M50/105 ,  H01M50/184

Abstract: A rechargeable battery includes: an electrode assembly; a case comprising a first sheet disposed at an upper side of the electrode assembly in a thickness direction and a second sheet disposed at a lower side of the electrode assembly along the thickness direction, an accommodating portion at least partially surrounding the electrode assembly and formed by the first and second sheets, a sealing portion, formed by the first and second sheets connected to an edge of the accommodating portion and bent to face a side surface of the accommodating portion, the sealing portion comprising a vent layer provided in the sealing portion, and a cutout portion disposed at one end portion of the sealing portion, wherein the vent layer is disposed on a bonding surface between the first sheet and the second sheet and contacts a corner of the accommodating portion and the cutout portion.

公开(公告)号：US20250105438A1

公开(公告)日：2025-03-27

申请号：US18894646

申请日：2024-09-24

Applicant: Samsung SDI Co., Ltd.

Inventor： Kwangjo Cheong ,  Minyoung Jang ,  Hyun Cho

IPC: H01M50/342 ,  H01M50/105 ,  H01M50/133 ,  H01M50/148

Abstract: A rechargeable battery according to the present disclosure includes: an electrode assembly; a pouch case that includes a first receiving portion surrounding a part of the electrode assembly, a second receiving portion that is coupled with the first receiving portion while surrounding the rest of the electrode assembly, and a penetration portion penetrating one or more of the first receiving portion and second receiving portion, and that receives the electrode assembly; and a venting member that is provided in the penetration portion, and is opened when an internal pressure reaches a threshold pressure.