公开(公告)号：US20240304914A1

公开(公告)日：2024-09-12

申请号：US18658352

申请日：2024-05-08

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： KOTA SHIMIZU ,  TAKAAKI KASSAI ,  KAZUMICHI SHIMIZU ,  TAKESHI NAGAO

IPC: H01M50/191 ,  H01M50/107 ,  H01M50/119 ,  H01M50/169 ,  H01M50/184 ,  H01M50/186

CPC classification number: H01M50/191 ,  H01M50/107 ,  H01M50/119 ,  H01M50/169 ,  H01M50/184 ,  H01M50/186

Abstract: Provided is a battery including: a battery can made of metal and including a tubular part provided at one end with an opening edge part and a bottom part closing another end of the tubular part; an electrode body housed inside the tubular part; and a sealing member bonded to the opening edge part of the battery can to seal an opening of the opening edge part. The sealing member includes a gasket part, a disk part made of metal, a ring part with a center part in which the disk part is crimped with the gasket part interposed between the center part and the disk part, and an intermediate member bonded to an upper surface of the ring part.

公开(公告)号：US20220149466A1

公开(公告)日：2022-05-12

申请号：US17498300

申请日：2021-10-11

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： KOTA SHIMIZU ,  TAKAAKI KASSAI ,  KAZUMICHI SHIMIZU ,  SHINYA GESHI

IPC: H01M50/186 ,  H01M50/60

Abstract: A battery includes a metal battery can that has a tubular portion having an opening edge portion at one end of the tubular portion and a bottom portion closing the other end of the tubular portion; an electrode body that is accommodated in the battery can; an electrolytic solution that fills the battery can; and a sealing member that has an outer peripheral surface disposed to face an inner peripheral surface of the opening edge portion of the tubular portion and seals the opening edge portion, in which a part of the inner peripheral surface of the opening edge portion and a part of the outer peripheral surface of the sealing member are joined by a melting portion, and a preventing portion, which prevents the electrolytic solution from rising toward a position, in which the melting portion is formed, between the inner peripheral surface of the opening edge portion and the outer peripheral surface of the sealing member, is provided on the outer peripheral surface of the sealing member, the preventing portion being closer to the bottom portion than the melting portion is.

公开(公告)号：US20210394305A1

公开(公告)日：2021-12-23

申请号：US17331972

申请日：2021-05-27

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： KOJI FUNAMI ,  KAZUKI FUJIWARA ,  KOTA SHIMIZU ,  KAZUMICHI SHIMIZU

IPC: B23K26/082 ,  B23K26/28 ,  B23K26/06 ,  B23K26/70 ,  B23K31/12

Abstract: The present disclosure includes a laser welding method in which a joint surface between a plurality of workpiece members is welded by radiating laser beam LB, and a locus of laser beam LB is controlled so as to perform wobbling scanning Sw by a combination of scanning motion Sa moving along first direction x parallel to the joint surface and swing motion Sb including first swing component Bx along first direction x and second swing component By along second direction y perpendicular to first direction x, the method including a defect determination step of determining occurrence of a welding defect; and an output control step of increasing or decreasing an output of laser beam LB when laser beam LB is radiated again toward the welding defect in a case where the welding defect occurs.