公开(公告)号：US12068489B2

公开(公告)日：2024-08-20

申请号：US17414766

申请日：2019-12-19

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Kazutoshi Kohira ,  Tatsuya Hirano

IPC: H01M50/107 ,  H01M50/147 ,  H01M50/179 ,  H01M50/184 ,  H01M50/188

CPC classification number: H01M50/107 ,  H01M50/147 ,  H01M50/179 ,  H01M50/184 ,  H01M50/188

Abstract: A battery includes a battery can including a cylindrical portion and a bottom portion, the cylindrical portion including an opening edge portion at one end portion of the cylindrical portion, the bottom portion closing the other end portion of the cylindrical portion; an electrode body housed in the cylindrical portion; a sealing member sealing an opening of the opening edge portion; and a fixing member fixing the sealing member to the battery can. The sealing member includes a terminal portion, an outer ring, and a first gasket, the outer ring being disposed along a peripheral edge of the terminal portion, and the first gasket being interposed between the opening edge portion and an external peripheral edge portion of the outer ring. The fixing member compresses the first gasket in a direction in which the external peripheral edge portion and the opening edge portion face each other, the fixing member compressing the first gasket via the external peripheral edge portion and the opening edge portion.

公开(公告)号：US12212008B2

公开(公告)日：2025-01-28

申请号：US17414782

申请日：2019-12-19

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Tatsuya Hirano ,  Kazutoshi Kohira

IPC: H01M50/179 ,  H01M50/107 ,  H01M50/184 ,  H01M50/188

Abstract: A battery includes a battery can which includes a cylindrical portion having an opening edge portion at one end portion and a bottom portion closing the other end portion of the cylindrical portion, an electrode assembly which is housed in the cylindrical portion, and an opening sealing body which seals an opening formed in the opening edge portion. The opening sealing body includes a terminal portion and a gasket interposed in a compressed state between the terminal portion and the opening edge portion. The opening edge portion includes at least a base portion extending in an axial direction of the cylindrical portion and a tongue portion protruding from the base portion, and the tongue portion extends inward in a radial direction of the cylindrical portion so as to cover an upper surface of the gasket.