公开(公告)号：US11949064B2

公开(公告)日：2024-04-02

申请号：US17160930

申请日：2021-01-28

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Tatsuya Oshima ,  Izuru Sasaki ,  Yuta Sugimoto ,  Seiji Nishiyama ,  Masashi Sakaida ,  Akira Kawase

IPC: H01M10/0562 ,  H01M4/62 ,  H01M10/0525 ,  H01M10/0585 ,  H01M10/44 ,  H01M4/02

CPC classification number: H01M10/0562 ,  H01M4/62 ,  H01M10/0525 ,  H01M10/0585 ,  H01M10/446 ,  H01M2004/027 ,  H01M2300/008

Abstract: The present disclosure provides a negative electrode material that can improve the cycle characteristics of a battery. The negative electrode material according to the present disclosure contains a reduced form of a solid electrolyte material. The solid electrolyte material is denoted by Formula (1): LiαMβXγ. Herein, in Formula (1), each of α, β, and γ is a value greater than 0, M represents at least one element selected from the group consisting of metal dements except Li and semimetals, and X represents at least one dement selected from the group consisting of F, Cl, Br, and I.

公开(公告)号：US12261267B2

公开(公告)日：2025-03-25

申请号：US17337496

申请日：2021-06-03

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Kazuyoshi Honda ,  Akio Kaneyama ,  Kazuhiro Morioka ,  Akira Kawase

IPC: H01M10/0562 ,  H01M4/131 ,  H01M4/66 ,  H01M10/0565 ,  H01M10/0585 ,  H01M50/184 ,  H01M50/186 ,  H01M50/191 ,  H01M50/193 ,  H01M50/195

Abstract: A battery includes a positive electrode current collector, a positive electrode active material layer, a solid electrolyte layer, a negative electrode active material layer, a negative electrode current collector, and a sealing member. In plan view, the negative electrode active material layer is larger than the solid electrolyte layer. In plan view, each of the positive electrode current collector and the negative electrode current collector is larger than the negative electrode active material layer. In plan view, the sealing member is located outside the solid electrolyte layer. In cross-sectional view perpendicular to a laminating direction, the sealing member is disposed in a region sandwiched between a part of the positive electrode current collector and a part of the negative electrode active material layer and a region sandwiched between another part of the positive electrode current collector and a part of the negative electrode current collector.

公开(公告)号：US12062754B2

公开(公告)日：2024-08-13

申请号：US17214943

申请日：2021-03-29

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Tatsuya Oshima ,  Izuru Sasaki ,  Hiroki Kamitake ,  Akira Kawase

IPC: H01M10/0562 ,  H01M10/0525

CPC classification number: H01M10/0562 ,  H01M10/0525 ,  H01M2300/008 ,  H01M2300/0091 ,  H01M2300/0094

Abstract: A battery includes a positive electrode, a negative electrode, and an electrolyte layer disposed between the positive electrode and the negative electrode. The electrolyte layer includes a first layer, a second layer, and a mixture layer disposed between the first layer and the second layer. The first layer includes a first solid electrolyte material. The second layer includes a second solid electrolyte material, the second solid electrolyte material being different from the first solid electrolyte material. The mixture layer includes the first solid electrolyte material and the second solid electrolyte material.

公开(公告)号：US12051816B2

公开(公告)日：2024-07-30

申请号：US17460311

申请日：2021-08-30

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Kazuyoshi Honda ,  Akira Kawase ,  Eiichi Koga ,  Kouji Nishida ,  Noboru Masuda ,  Takeshi Yamasaki

IPC: H01M50/548 ,  H01M10/0525 ,  H01M50/186 ,  H01M50/531 ,  H01M50/54 ,  H01M50/553

CPC classification number: H01M50/186 ,  H01M10/0525 ,  H01M50/531 ,  H01M50/54 ,  H01M50/548 ,  H01M50/553

Abstract: A laminated battery includes battery cells which are laminated and a current collecting lead. Each of the battery cells has a structure in which a positive electrode current collector, a positive electrode active material layer, a solid electrolyte layer, a negative electrode active material layer, and a negative electrode current collector are laminated in this order. The battery cells include first and second battery cells adjacent to each other. At least the second battery cell has a side surface inclined with respect to a laminating direction of the battery cells. The first battery cell has a surface facing the second battery cell and including an exposed surface not in contact with the second battery cell. At least part of the exposed surface overlaps at least part of the side surface of the second battery cell viewed from the laminating direction. The current collecting lead is connected to the exposed surface.

公开(公告)号：US11296378B2

公开(公告)日：2022-04-05

申请号：US16391366

申请日：2019-04-23

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Kazuyoshi Honda ,  Akira Kawase ,  Yasutaka Tsutsui

IPC: H01M50/183 ,  H01M50/184 ,  H01M50/291 ,  H01M10/0585

Abstract: A battery includes: a unit cell including an electrode layer, a counter electrode layer facing the electrode layer, and a solid electrolyte layer disposed between the electrode layer and the counter electrode layer; an electrode current collector in contact with the electrode layer; a counter electrode current collector in contact with the counter electrode layer; and a seal disposed between the electrode current collector and the counter electrode current collector. The unit cell is disposed between the electrode current collector and the counter electrode current collector. The seal includes at least one protrusion protruding toward the solid electrolyte layer, and at least part of the at least one protrusion is in contact with the solid electrolyte layer.