公开(公告)号：US20240234801A9

公开(公告)日：2024-07-11

申请号：US18395866

申请日：2023-12-26

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： KENTA NAGAMINE ,  IZURU SASAKI

IPC: H01M10/0562 ,  H01M4/02 ,  H01M4/62

CPC classification number: H01M10/0562 ,  H01M4/625 ,  H01M2004/028 ,  H01M2300/008 ,  H01M2300/0091

Abstract: A positive electrode material includes a positive electrode active material and a solid electrolyte. The oxidation potential of the solid electrolyte is higher than or equal to 3.9 V versus Li/Li+. The ratio of the volume of the solid electrolyte to the volume of the positive electrode material is in a range of greater than or equal to 8% and less than or equal to 25%. A battery of the present disclosure includes a positive electrode containing the positive electrode material, a negative electrode, and an electrolyte layer disposed between the positive electrode and the negative electrode.

公开(公告)号：US20240145726A1

公开(公告)日：2024-05-02

申请号：US18407531

申请日：2024-01-09

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： YUSUKE NISHIO ,  KENJI NAGAO ,  IZURU SASAKI

IPC: H01M4/62 ,  H01M10/0562

CPC classification number: H01M4/625 ,  H01M10/0562 ,  H01M2004/028

Abstract: A cathode includes a mixture of a cathode active material, a solid electrolyte, and a conductive material. The conductive material includes carbon black having an average particle size of less than or equal to 100 nm. When a cross-section of the cathode is observed using a scanning electron microscope, an area in which the carbon black is concentrated is found between the cathode active material and the solid electrolyte.

公开(公告)号：US20240136571A1

公开(公告)日：2024-04-25

申请号：US18395866

申请日：2023-12-26

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： KENTA NAGAMINE ,  IZURU SASAKI

IPC: H01M10/0562 ,  H01M4/02 ,  H01M4/62

CPC classification number: H01M10/0562 ,  H01M4/625 ,  H01M2004/028 ,  H01M2300/008 ,  H01M2300/0091

Abstract: A positive electrode material includes a positive electrode active material and a solid electrolyte. The oxidation potential of the solid electrolyte is higher than or equal to 3.9 V versus Li/Li+. The ratio of the volume of the solid electrolyte to the volume of the positive electrode material is in a range of greater than or equal to 8% and less than or equal to 25%. A battery of the present disclosure includes a positive electrode containing the positive electrode material, a negative electrode, and an electrolyte layer disposed between the positive electrode and the negative electrode.

公开(公告)号：US20240079646A1

公开(公告)日：2024-03-07

申请号：US18504122

申请日：2023-11-07

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： KENJI NAGAO ,  YUTA SUGIMOTO ,  KAZUYA HASHIMOTO ,  IZURU SASAKI

IPC: H01M10/0562 ,  H01M4/131 ,  H01M4/36 ,  H01M4/485 ,  H01M4/525 ,  H01M10/052

CPC classification number: H01M10/0562 ,  H01M4/131 ,  H01M4/366 ,  H01M4/485 ,  H01M4/525 ,  H01M10/052 ,  H01M2300/008

Abstract: A coated active material includes a positive electrode active material and a coating layer coating at least a portion of a surface of the positive electrode active material. The coating layer includes a first coating layer and a second coating layer. The first coating layer is located outside of the second coating layer. A percentage of change in specific surface area from a specific surface area of the positive electrode active material coated with the second coating layer to a specific surface area of the coated active material is greater than or equal to −62.8% and less than or equal to +3.79%.

公开(公告)号：US20220077493A1

公开(公告)日：2022-03-10

申请号：US17518588

申请日：2021-11-04

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： TATSUYA OSHIMA ,  IZURU SASAKI ,  YUTA SUGIMOTO ,  SEIJI NISHIYAMA ,  AKINOBU MIYAZAKI

IPC: H01M10/0562 ,  H01M4/04 ,  H01M10/0525 ,  H01B1/12

Abstract: An ion conductor material includes a solid-electrolyte material and a resin binder. The solid-electrolyte material includes Li, M, and X. The M is at least one selected from the group consisting of metal and metalloid elements other than Li. The X is at least one selected from the group consisting of F, Cl, Br, and I. The molar ratio of a modification group included in the resin binder to the solid-electrolyte material is less than or equal to 0.0002.

公开(公告)号：US20210005923A1

公开(公告)日：2021-01-07

申请号：US16911442

申请日：2020-06-25

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： YOHEI HAYASHI ,  IZURU SASAKI ,  YUTA SUGIMOTO

IPC: H01M10/0562 ,  H01M10/0525 ,  H01M4/525 ,  H01M4/131 ,  H01M4/134 ,  H01M4/505

Abstract: A positive electrode material contains a positive electrode active material and a first solid electrolyte material. The first solid electrolyte material is represented by Chemical Formula (1): LiαMβXγ. In Chemical Formula (1), α, β, and γ each represent a value larger than 0, M represents at least one element selected from the group consisting of metal elements other than lithium and of metalloid elements, and X represents at least one element selected from the group consisting of fluorine, chlorine, bromine, and iodine. The ratio of the volume of the positive electrode active material to the sum of the volume of the positive electrode active material and the volume of the solid electrolyte material is not less than 0.55 and not more than 0.85.

公开(公告)号：US20180366777A1

公开(公告)日：2018-12-20

申请号：US15997695

申请日：2018-06-05

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： IZURU SASAKI

IPC: H01M10/0562 ,  H01M10/052 ,  H01M4/133 ,  H01M4/134 ,  H01M4/131

CPC classification number: H01M10/0562 ,  H01B1/06 ,  H01M4/131 ,  H01M4/133 ,  H01M4/134 ,  H01M10/052 ,  H01M10/48 ,  H01M2004/027 ,  H01M2004/028 ,  H01M2300/0065

Abstract: A sulfide solid electrolyte material comprises phosphorus and sulfur. With regard to the sulfide solid electrolyte material, x satisfies 0.00926≤x≤0.37, where a first peak is a peak in a range of not less than 87.5 ppm and not more than 88.5 ppm, the peak being determined by Gaussian curve fitting of a 31P-NMR spectrum, a second peak is a peak in a range of not less than 84.2 ppm and not more than 85.2 ppm, the peak being determined by Gaussian curve fitting of the 31P-NMR spectrum, and a ratio of integrated intensity of the first peak to integrated intensity of the second peak is represented by x:1−x.

公开(公告)号：US20180316057A1

公开(公告)日：2018-11-01

申请号：US15942576

申请日：2018-04-02

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： IZURU SASAKI

IPC: H01M10/0562 ,  H01M4/525 ,  H01M10/0525 ,  H01M4/36

Abstract: A solid electrolyte material includes: a sulfide layer containing lithium atoms and sulfur atoms; and an oxide layer covering the sulfide layer, the oxide layer containing lithium atoms and oxygen atoms. The solid electrolyte material satisfies 0.51≤x and x/y≤1.53, where x is a first ratio of the number of the oxygen atoms to the number of the lithium atoms at a depth 4 nm of the solid electrolyte material from the surface of the oxide layer; and y is a second ratio of the number of the oxygen atoms to the number of the lithium atoms at a depth 100 nm of the solid electrolyte material from the surface of the oxide layer.

公开(公告)号：US20240113294A1

公开(公告)日：2024-04-04

申请号：US18530347

申请日：2023-12-06

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： YUSUKE NISHIO ,  KAZUYA HASHIMOTO ,  IZURU SASAKI

IPC: H01M4/525 ,  H01M4/36 ,  H01M4/38 ,  H01M4/485 ,  H01M10/0562

CPC classification number: H01M4/525 ,  H01M4/366 ,  H01M4/382 ,  H01M4/485 ,  H01M10/0562 ,  H01M2004/028

Abstract: The positive electrode active material includes a complex oxide represented by Formula (1): LiNixMe1-xO2 where x satisfies 0.5≤x

公开(公告)号：US20220416297A1

公开(公告)日：2022-12-29

申请号：US17929775

申请日：2022-09-06

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： HIROKI KAMITAKE ,  IZURU SASAKI ,  SEIJI NISHIYAMA

IPC: H01M10/0562 ,  H01M4/36 ,  H01M4/525 ,  H01M4/505

Abstract: A positive-electrode material according to the present disclosure includes a positive-electrode active material and a coating layer covering the positive-electrode active material, wherein the coating layer contains niobium and carbon, the positive-electrode active material and the coating layer constitute a coated active material, and the ratio Nb/C of the niobium content to the carbon content in a surface layer portion of the coated active material is 0.11 or more based on the atomic ratio.