公开(公告)号：US20250096372A1

公开(公告)日：2025-03-20

申请号：US18727780

申请日：2022-12-19

Applicant: TDK CORPORATION

Inventor： Akinobu NOJIMA ,  Shinya WATANABE ,  Yukiko HIRABAYASHI

IPC: H01M50/109 ,  H01M50/153 ,  H01M50/186

Abstract: This battery includes: an electrical storage element with positive and negative electrodes and insulating film between the positive and negative electrodes and electrically separates the positive and negative electrodes; and an airtight case housing the electrical storage element, wherein the case includes: a first member having bottom and tubular portions; a second member having a lid-like portion covering an opening of the first member and a surrounding wall portion covering the tubular portion from an outside; and a gasket between an end face of the first member and the second member and between the tubular portion and the second member, and wherein a non-contact portion with which the gasket is not in contact is provided in either one or both of a part of a first surface of the first member that faces the gasket and a part of a second surface of the second member that faces the gasket.

公开(公告)号：US20240347769A1

公开(公告)日：2024-10-17

申请号：US18682316

申请日：2022-08-05

Applicant: TDK CORPORATION

Inventor： Shinya WATANABE

IPC: H01M10/0565 ,  H01M4/131 ,  H01M4/86 ,  H01M10/052

CPC classification number: H01M10/0565 ,  H01M4/131 ,  H01M10/052 ,  H01M2004/8684

Abstract: An all-solid-state battery includes: a laminate in which a positive electrode active material layer, a solid electrolyte layer, and a negative electrode active material layer are laminated in this order; a positive electrode current collector and a negative electrode current collector which sandwich the laminate in a laminating direction; an insulating sheet which surrounds the laminate between the positive electrode current collector and the negative electrode current collector; and a first adhesive sheet which bonds the insulating sheet and the positive electrode current collector or the insulating sheet and the negative electrode current collector, wherein a first through-hole is formed in the first adhesive sheet and the laminate is accommodated in the first through-hole when viewed from the laminating direction of the laminate.

公开(公告)号：US20240128619A1

公开(公告)日：2024-04-18

申请号：US18279099

申请日：2022-03-09

Applicant: TDK CORPORATION

Inventor： Shinya WATANABE ,  Wen MA

IPC: H01M50/586 ,  H01M10/0585 ,  H01M50/59

CPC classification number: H01M50/586 ,  H01M10/0585 ,  H01M50/59

Abstract: An all-solid-state battery includes a positive electrode layer including a positive electrode active material layer and a positive electrode current collector; a negative electrode layer including a negative electrode active material layer and a negative electrode current collector; a solid electrolyte layer; and an insulating film, in which the insulating film has therein a through-hole in which a laminate in which the positive electrode active material layer, the solid electrolyte layer, and the negative electrode active material layer are sequentially stacked is housed, the laminate and the insulating film are arranged between the positive electrode current collector and the negative electrode current collector, and an external shape of the insulating film is larger than external shapes of the positive electrode current collector and the negative electrode current collector when viewed in a plan view in a laminating direction of the laminate.