公开(公告)号：US20240154264A1

公开(公告)日：2024-05-09

申请号：US18549913

申请日：2022-02-04

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： TAKAHIRO INOUE ,  YASUNOBU KODAMA ,  HIDEYUKI UEDA

IPC: H01M50/533 ,  H01M50/107 ,  H01M50/184 ,  H01M50/188 ,  H01M50/536

CPC classification number: H01M50/533 ,  H01M50/107 ,  H01M50/184 ,  H01M50/188 ,  H01M50/536

Abstract: The disclosed battery includes a cylindrical side surface, a case including an opening and a bottom, an electrode group housed in the case together with an electrolytic solution and including a first electrode and a second electrode, and a first end part electrically connected to the first electrode, a first lead welded to the cylindrical side surface, a cap for sealing an opening, and a gasket provided between the opening and the cap. A part of the cylindrical side surface is provided with a groove for compressing a part of the gasket. The gasket includes a cylindrical part that is continuous with a compression part and that extends toward the bottom. The first lead is not placed between the cylindrical side surface and the compression part, and is in contact with the cylindrical part. The second end part of the first lead is positioned closer to the opening than the electrode group.