公开(公告)号：US20240079571A1

公开(公告)日：2024-03-07

申请号：US18508182

申请日：2023-11-13

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： KAZUYA HASHIMOTO ,  YUTA SUGIMOTO ,  IZURU SASAKI

IPC: H01M4/36 ,  H01M4/525 ,  H01M4/62 ,  H01M10/0562

CPC classification number: H01M4/366 ,  H01M4/525 ,  H01M4/62 ,  H01M10/0562 ,  H01M2004/028

Abstract: A coated active material of the present disclosure includes an active material and a coating layer coating at least a part of the surface of the active material. The coating layer includes a first coating material. The coated active material has a supernatant NV rate of less than 23%, where the supernatant NV rate is a ratio of the NV value of a supernatant liquid to the mass content ratio of the first coating material in a dispersing liquid obtained by dispersing the coated active material in a solvent, and the NV value of the supernatant liquid is a ratio of the mass of a non-volatile component to the mass of the supernatant liquid obtained by precipitating the coated active material by leaving the dispersing liquid to stand.

公开(公告)号：US20240079570A1

公开(公告)日：2024-03-07

申请号：US18507037

申请日：2023-11-11

Applicant: Panasonic Intellectual Property Management Co., Ltd.

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

IPC: H01M4/36 ,  H01M4/525 ,  H01M4/62 ,  H01M10/0562

CPC classification number: H01M4/366 ,  H01M4/525 ,  H01M4/62 ,  H01M10/0562 ,  H01M2004/028

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, which contains a first solid electrolyte, and a second coating layer, which contains a base material. The first coating layer is located outside of the second coating layer. The first solid electrolyte contains Li, M, and X, where M is at least one selected from the group consisting of metalloid elements and metal elements other than Li, and X is at least one selected from the group consisting of F, Cl, Br, and I. A ratio of a specific surface area of the coated active material to a specific surface area of the positive electrode active material coated with the second coating layer is less than or equal to 42%.

公开(公告)号：US20230268504A1

公开(公告)日：2023-08-24

申请号：US18142506

申请日：2023-05-02

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： HIRO KAMITAKE ,  AKIHIRO SAKAI ,  IZURU SASAKI ,  YUTA SUGIMOTO ,  AKINOBU MIYAZAKI

IPC: H01M4/58 ,  H01M4/62 ,  H01M10/0525 ,  H01M10/0562 ,  H01M10/052 ,  H01M4/136 ,  H01M50/431

CPC classification number: H01M4/5825 ,  H01M4/62 ,  H01M10/0525 ,  H01M10/0562 ,  H01M10/052 ,  H01M4/136 ,  H01M50/431 ,  H01M2004/028

Abstract: The present disclosure provides a cathode material which has improved charge/discharge efficiency; and a battery using the same. The cathode material includes a cathode active material and a first solid electrolyte material; and the first solid electrolyte material contains Li, M and X; however, does not include sulfur. M represents at least one element that is selected from the group consisting of metalloid elements and metal elements other than Li. X represents at least one selected from the group consisting of Cl and Br, and I. The cathode active material includes lithium iron phosphate.

公开(公告)号：US20210143474A1

公开(公告)日：2021-05-13

申请号：US17154022

申请日：2021-01-21

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： YUTA SUGIMOTO ,  IZURU SASAKI

IPC: H01M10/0562 ,  H01M10/052 ,  H01M10/058 ,  H01M4/134

Abstract: A battery includes a positive electrode current collector, a positive electrode, a first electrolyte layer, a second electrolyte layer, a negative electrode, and a negative electrode current collector in this order. The first electrolyte layer contains a first solid electrolyte material, and the second electrolyte layer contains a second solid electrolyte material, the second solid electrolyte material being different from the first solid electrolyte material. An oxidation potential of the first solid electrolyte material is more noble than an oxidation potential of the second solid electrolyte material. The first electrolyte layer covers the positive electrode and is in contact with the positive electrode current collector, and/or the first electrolyte layer covers the second electrolyte layer and is in contact with the negative electrode current collector.

公开(公告)号：US20200350561A1

公开(公告)日：2020-11-05

申请号：US16930405

申请日：2020-07-16

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： HIROKI KAMITAKE ,  AKIHIRO SAKAI ,  IZURU SASAKI ,  YUTA SUGIMOTO ,  AKINOBU MIYAZAKI

IPC: H01M4/36 ,  H01M4/58 ,  H01M10/0562 ,  H01M4/62 ,  H01M10/0525

Abstract: The present disclosure provides a cathode material which has improved charge/discharge efficiency; and a battery using the same. The cathode material includes a cathode active material and a first solid electrolyte material; and the first solid electrolyte material contains Li, M and X; however, does not include sulfur. M represents at least one element that is selected from the group consisting of metalloid elements and metal elements other than Li. X represents at least one selected from the group consisting of Cl and Br, and I. The cathode active material includes lithium iron phosphate.

公开(公告)号：US20250062401A1

公开(公告)日：2025-02-20

申请号：US18937743

申请日：2024-11-05

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： YOHEI HAYASHI ,  YUTA SUGIMOTO

IPC: H01M10/0562 ,  H01M4/62 ,  H01M10/42

Abstract: A solid electrolyte composition includes a solid electrolyte and an organic solvent, in which the solid electrolyte is substantially free of sulfur and contains I, and the organic solvent is a compound having a skeleton structure containing at least two F atoms. A solid electrolyte layer includes a solid electrolyte substantially free of sulfur and containing I and an organic compound that has a composition different from the solid electrolyte and has a skeleton structure containing at least two F atoms. An electrode includes a solid electrolyte substantially free of sulfur and containing I, an organic compound that has a composition different from the solid electrolyte and has a skeleton structure containing at least two F atoms, and an active material.

公开(公告)号：US20240194862A1

公开(公告)日：2024-06-13

申请号：US18588079

申请日：2024-02-27

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： YUTA SUGIMOTO ,  KAZUYA HASHIMOTO

IPC: H01M4/36 ,  H01M4/02 ,  H01M4/62 ,  H01M10/0525 ,  H01M10/0562

CPC classification number: H01M4/366 ,  H01M4/62 ,  H01M10/0525 ,  H01M10/0562 ,  H01M2004/028 ,  H01M2300/0071 ,  H01M2300/008

Abstract: A positive electrode material includes a positive electrode active material, a coating layer, and a second solid electrolyte. The coating layer contains a first solid electrolyte and coats at least a portion of a surface of the positive electrode active material. The first solid electrolyte contains Li, Ti, M, and X, where M is at least one selected from the group consisting of metalloid elements and metal elements other than Li or Ti, and X is at least one selected from the group consisting of F, Cl, Br, and I. The second solid electrolyte is in indirect contact with the positive electrode active material with the coating layer disposed therebetween. A percentage of coverage of the surface of the positive electrode active material with the coating layer is greater than or equal to 65%.

公开(公告)号：US20240088435A1

公开(公告)日：2024-03-14

申请号：US18513658

申请日：2023-11-20

Applicant: Panasonic Intellectual Property Management Co., Ltd.

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

IPC: H01M10/0562 ,  H01M4/131

CPC classification number: H01M10/0562 ,  H01M4/131 ,  H01M2300/008 ,  H01M2300/0094

Abstract: A positive electrode material includes a positive electrode active material, a coating layer, and a second solid electrolyte. The coating layer contains a first solid electrolyte and coats at least a portion of a surface of the positive electrode active material. The first solid electrolyte contains Li, M, and X, where M is at least one selected from the group consisting of metalloid elements and metal elements other than Li, and X is at least one selected from the group consisting of F, Cl, Br, and I. The second solid electrolyte is in indirect contact with the positive electrode active material with the coating layer disposed therebetween. A ratio of a volume of the first solid electrolyte to a total volume of the first solid electrolyte and the second solid electrolyte is greater than or equal to 4% and less than or equal to 60%.

公开(公告)号：US20230352690A1

公开(公告)日：2023-11-02

申请号：US18219210

申请日：2023-07-07

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： TADAAKI MATSUMURA ,  IZURU SASAKI ,  YUTA SUGIMOTO

IPC: H01M4/62 ,  H01M4/36 ,  H01M4/505 ,  H01M4/525 ,  H01M10/0525 ,  H01M10/0562 ,  H01M50/431 ,  H01M4/131

CPC classification number: H01M4/62 ,  H01M4/366 ,  H01M4/505 ,  H01M4/525 ,  H01M10/0525 ,  H01M10/0562 ,  H01M50/431 ,  H01M4/131 ,  H01M2300/008

Abstract: Provided is a cathode material including a cathode active material; a coating layer which coats at least a part of a surface of the cathode active material, and which includes a first solid electrolyte material; and a second solid electrolyte material. The first solid electrolyte material includes Li, M, and X; however, does not include sulfur. M includes at least one element selected from the group consisting of metalloid elements and metal elements other than Li. X includes at least one element selected from the group consisting of Cl and Br.

公开(公告)号：US20210143470A1

公开(公告)日：2021-05-13

申请号：US17151722

申请日：2021-01-19

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： YUTA SUGIMOTO ,  IZURU SASAKI

IPC: H01M10/0562

Abstract: A battery includes a positive electrode current collector, a positive electrode, a first electrolyte layer, a second electrolyte layer, a negative electrode, and a negative electrode current collector in this order. The first electrolyte layer contains a first solid electrolyte material, and the second electrolyte layer contains a second solid electrolyte material, the second solid electrolyte material being different from the first solid electrolyte material. A reduction potential of the second solid electrolyte material is less noble than a reduction potential of the first solid electrolyte material. The second electrolyte layer covers the negative electrode and is in contact with the negative electrode current collector, and/or the second electrolyte layer covers the first electrolyte layer and is in contact with the positive electrode current collector.