公开(公告)号：US20240162539A1

公开(公告)日：2024-05-16

申请号：US18549189

申请日：2022-03-14

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： KAZUTOSHI KOHIRA ,  SHINYA GESHI ,  JUNYA HASHIMOTO

IPC: H01M50/152 ,  H01M10/04 ,  H01M50/107 ,  H01M50/167 ,  H01M50/184 ,  H01M50/186

CPC classification number: H01M50/152 ,  H01M10/0422 ,  H01M50/107 ,  H01M50/167 ,  H01M50/184 ,  H01M50/186

Abstract: A sealing plate of the present disclosure includes a flange part in an annular shape provided on an outer peripheral edge, a raised part in an annular shape located nearer to a center than the flange part and being thicker than the flange part, a fragile part located nearer to the center than the raised part and being thinnest in the sealing plate, a relay part in an annular shape located nearer to the center than the fragile part, and a middle part located nearer to the center than the relay part and including a center part of the sealing plate, wherein in the thickness direction of the sealing plate, the fragile part is apart from the flange part in the first direction, and the relay part protrudes toward a second direction that is opposite to the first direction in the thickness direction.