公开(公告)号：US20250070228A1

公开(公告)日：2025-02-27

申请号：US18947212

申请日：2024-11-14

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： TATSUYA OSHIMA ,  YASUTAKA TSUTSUI ,  TAKAAKI TAMURA ,  HIROKI KAMITAKE ,  AKIRA KAWASE

IPC: H01M10/056

Abstract: A solid electrolyte composition of the present disclosure includes a solvent and an ion conductor including a solid electrolyte, a binder, and a nitrogen-containing organic substance and being dispersed in the solvent. The solid electrolyte includes a sulfide solid electrolyte, the binder includes a styrenic elastomer, and the nitrogen-containing organic substance includes at least one selected from the group consisting of primary amines, secondary amines, aminohydroxy compounds, and diamines. The primary amines, the secondary amines, the aminohydroxy compounds, and the diamines each have at least one selected from the group consisting of chain alkyl groups having 8 or more carbon atoms and chain alkenyl groups having 8 or more carbon atoms. The mass proportion of the nitrogen-containing organic substance to the solid electrolyte is 0.30 mass % or more.

公开(公告)号：US20240222810A1

公开(公告)日：2024-07-04

申请号：US18605331

申请日：2024-03-14

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： KAZUYOSHI HONDA ,  KOICHI HIRANO ,  EIICHI KOGA ,  KAZUHIRO MORIOKA ,  AKIRA KAWASE

IPC: H01M50/533 ,  H01M50/186 ,  H01M50/207 ,  H01M50/512

CPC classification number: H01M50/533 ,  H01M50/186 ,  H01M50/207 ,  H01M50/512

Abstract: A battery includes a power-generating element including a plurality of battery cells each including an electrode layer, a counter-electrode layer, and a solid electrolyte layer located between the electrode layer and the counter-electrode layer, the plurality of battery cells being electrically connected in parallel and laminated, an electrode insulating member covering the electrode layer in a first region of one of a plurality of side surfaces of the power-generating element, a counter-electrode lead, electrically connected to the counter-electrode layer, that covers the first region and the electrode insulating member, a counter-electrode insulating member covering the counter-electrode layer in a second region of one of the plurality of side surfaces, and an electrode lead, electrically connected to the electrode layer, that covers the second region and the counter-electrode insulating member. The first region and the second region are located on an identical side surface of the power-generating element.

公开(公告)号：US20240222808A1

公开(公告)日：2024-07-04

申请号：US18605088

申请日：2024-03-14

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： KAZUYOSHI HONDA ,  KOICHI HIRANO ,  EIICHI KOGA ,  KAZUHIRO MORIOKA ,  AKIRA KAWASE

IPC: H01M50/533 ,  H01M50/186 ,  H01M50/207 ,  H01M50/512

CPC classification number: H01M50/533 ,  H01M50/186 ,  H01M50/207 ,  H01M50/512

Abstract: A battery includes: a power-generating element including battery cells electrically connected in parallel and laminated and each including an electrode layer, a counter electrode layer, and a solid electrolyte layer; an electrode insulation member; a counter electrode lead layer covering a first side surface and the electrode insulation member and electrically connected to the counter electrode layer of each of the battery cells; and a counter electrode current collector terminal provided at a first principal surface of the power-generating element. A resistance of a first portion, of the counter electrode lead layer, connected to the counter electrode layer of a battery cell disposed closest to the first principal surface among the battery cells is lower than a resistance of a second portion thereof connected to the counter electrode layer of a battery cell disposed farthest from the first principal surface among the battery cells.

公开(公告)号：US20240213436A1

公开(公告)日：2024-06-27

申请号：US18601365

申请日：2024-03-11

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： KAZUYOSHI HONDA ,  KOICHI HIRANO ,  EIICHI KOGA ,  KAZUHIRO MORIOKA ,  AKIRA KAWASE

IPC: H01M4/04 ,  H01M10/052 ,  H01M10/0562 ,  H01M50/531

CPC classification number: H01M4/0404 ,  H01M10/0562 ,  H01M50/531 ,  H01M10/052

Abstract: A battery includes a power-generating element including a plurality of battery cells each including an electrode layer, a counter-electrode layer, and a solid electrolyte layer located between the electrode layer and the counter-electrode layer, an electrode insulating member covering the electrode layer on a first side surface of the power-generating element, a counter-electrode lead, electrically connected to the counter-electrode layer, that covers the first side surface and the electrode insulating member, a counter-electrode insulating member covering the counter-electrode layer on a second side surface of the power-generating element, an electrode lead, electrically connected to the electrode layer, that covers the second side surface and the counter-electrode insulating member, a counter-electrode collector terminal provided at a first principal surface of the power-generating element, and an electrode collector terminal provided at a second principal surface of the power-generating element opposite to the first principal surface.

公开(公告)号：US20240106004A1

公开(公告)日：2024-03-28

申请号：US18533251

申请日：2023-12-08

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： MIHO UEHARA ,  KAZUHIRO MORIOKA ,  AKIRA KAWASE ,  SEIJI NISHIYAMA

IPC: H01M10/0585 ,  H01M4/62 ,  H01M4/72

CPC classification number: H01M10/0585 ,  H01M4/628 ,  H01M4/72

Abstract: A battery includes a power-generating element and an insulating layer. The power-generating element includes an electrode layer, a counter-electrode layer placed to face the electrode layer, and a solid electrolyte layer located between the electrode layer and the counter-electrode layer. The insulating layer includes a first insulating film that extends inward from ends of the power-generating element in a planar view of a principal surface of the power-generating element and a second insulating film that covers a side surface of the power-generating element and that is continuous with ends of the first insulating film. The second insulating film is thinner than the first insulating film.

公开(公告)号：US20240063392A1

公开(公告)日：2024-02-22

申请号：US18495796

申请日：2023-10-27

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： TATSUYA OSHIMA ,  SEIJI NISHIYAMA ,  AKIRA KAWASE ,  YUSUKE NISHIO

IPC: H01M4/62 ,  H01M4/525 ,  H01M4/66 ,  H01M10/052

CPC classification number: H01M4/622 ,  H01M4/525 ,  H01M4/663 ,  H01M4/667 ,  H01M10/052 ,  H01M2004/028

Abstract: An electrode includes an active material layer that includes an active material, a solid electrolyte, and a binder and a current collector that includes a substrate and a coating layer coating the substrate and being in contact with the active material layer. The binder includes a block copolymer that includes two first blocks constituted of a repeating unit having an aromatic ring and a second block located between the two first blocks. The weight average molecular weight of the block copolymer is 170,000 or more. The coating layer includes conductive carbon.

公开(公告)号：US20210344041A1

公开(公告)日：2021-11-04

申请号：US17375109

申请日：2021-07-14

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： AKIRA KAWASE ,  KOUJI NISHIDA ,  YASUTAKA TSUTSUI

IPC: H01M10/0562 ,  H01M10/0564 ,  H01M10/0585 ,  H01M4/139 ,  H01M10/0525 ,  H01M4/66

Abstract: A battery includes a first electrode, a first solid electrolyte layer in contact with the first electrode, a second electrode, and a second solid electrolyte layer located between the second electrode and the first solid electrolyte layer and in contact with the second electrode and the first solid electrolyte layer. An organic compound content of the first solid electrolyte layer is smaller than an organic compound content of the second solid electrolyte layer, and a thickness of the first solid electrolyte layer is smaller than a thickness of the second solid electrolyte layer.

公开(公告)号：US20240304850A1

公开(公告)日：2024-09-12

申请号：US18661403

申请日：2024-05-10

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： KAZUYOSHI HONDA ,  AKIRA KAWASE ,  KAZUHIRO MORIOKA ,  KOICHI HIRANO ,  TSUTOMU KOSHIZUKA ,  EIICHI KOGA

IPC: H01M10/04 ,  H01M50/105 ,  H01M50/145 ,  H01M50/178 ,  H01M50/24 ,  H01M50/509 ,  H01M50/593

CPC classification number: H01M10/0431 ,  H01M50/105 ,  H01M50/145 ,  H01M50/178 ,  H01M50/24 ,  H01M50/509 ,  H01M50/593

Abstract: A battery of the present disclosure includes a power generation element. Each of the plurality of unit cells includes an electrode layer, a counter electrode layer, and a solid electrolyte layer arranged between the electrode layer and the counter electrode layer. The power generation element includes a first principal, a second principal opposite to the first principal, and a side surface connecting the first principal and the second principal. The side surface includes: a first inclined surface that connects to the first principal and forms an obtuse angle with the first principal; and a second inclined surface that connects to the second principal and forms an obtuse angle with the second principal. At least one of the first inclined surface and the second inclined surface is provided across two or more of the plurality of unit cells.

公开(公告)号：US20240258666A1

公开(公告)日：2024-08-01

申请号：US18628816

申请日：2024-04-08

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： KAZUYOSHI HONDA ,  AKIRA KAWASE ,  KAZUHIRO MORIOKA ,  KOICHI HIRANO ,  TSUTOMU KOSHIZUKA ,  EIICHI KOGA

IPC: H01M50/593 ,  H01M50/51 ,  H01M50/512

CPC classification number: H01M50/593 ,  H01M50/51 ,  H01M50/512

Abstract: A battery according to the present disclosure includes a power-generating element having a plurality of parallel laminates electrically series-connected and laminated. The parallel laminates each include an odd number of battery cells electrically connected in parallel and laminated. The battery cells each include an electrode layer, a counter electrode layer, and a solid electrolyte layer positioned therebetween. The battery further includes: an electrode insulating member covering the electrode layer on a first side surface of each parallel laminate; a counter electrode connector that covers the first side surface and the electrode insulating member and is electrically connected to the counter electrode layer in each parallel laminate; a counter electrode insulating member covering the counter electrode layer on a second side surface of each parallel laminate; and an electrode connector that covers the second side surface and the counter electrode insulating member and is electrically connected to the electrode layer in each parallel laminate.

公开(公告)号：US20230015007A1

公开(公告)日：2023-01-19

申请号：US17935921

申请日：2022-09-27

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： AKIO KANEYAMA ,  AKIRA KAWASE ,  KAZUHIRO MORIOKA

IPC: H01M10/04 ,  H01M10/0585

Abstract: A battery includes: a power generating element that includes at least one solid-state battery cell that includes a positive electrode, a solid electrolyte layer, and a negative electrode which are laminated; a first pressurizing member in contact with a first principal surface of the power generating element; a second pressurizing member in contact with a second principal surface of the power generating element, the second principal surface being opposite to the first principal surface. The first pressurizing member includes a first void. The second pressurizing member includes a second void. The insulating member includes a side surface portion that covers a side surface of the power generating element, and an extending portion that extends from the side surface portion into each of the first void and the second void.