公开(公告)号：US20240120524A1

公开(公告)日：2024-04-11

申请号：US18276319

申请日：2022-03-01

Applicant: TDK CORPORATION

Inventor： Tetsuya UENO ,  Takamasa MUKAI ,  Wen MA

IPC: H01M10/04 ,  H01M10/052

CPC classification number: H01M10/0481 ,  H01M10/052 ,  H01M2300/0065

Abstract: Provided is a battery including a battery element having a positive electrode, a negative electrode, and a solid electrolyte layer between the positive electrode and the negative electrode, and further including an exterior body covering the battery element, in which at least one of the positive electrode, the negative electrode, and the solid electrolyte layer includes a solid electrolyte represented by Formula (1) of Li3+aE1-bGbDcXd-e, and a moisture content in a housing space between the battery element and the exterior body is less than 1100 ppmv.

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.