公开(公告)号：US20230019252A1

公开(公告)日：2023-01-19

申请号：US17933090

申请日：2022-09-17

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： KAZUYA HASHIMOTO ,  IZURU SASAKI ,  HIROKI YABE

IPC: H01M10/0562 ,  H01M10/0525 ,  H01M4/13

Abstract: A positive-electrode material according to the present disclosure includes a positive-electrode active material and a cover layer 111 containing a first solid electrolyte and covering at least partially the surface of the positive-electrode active material. The positive-electrode active material and the cover layer constitute a covered active material; the positive-electrode active material has a pore volume Vα, the covered active material has a pore volume Vβ, the positive-electrode active material has a specific surface area Sa, the covered active material has a specific surface area Sp, and at least one selected from the group consisting of 0.20

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：US20240063375A1

公开(公告)日：2024-02-22

申请号：US18500490

申请日：2023-11-02

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： KAZUYA HASHIMOTO ,  IZURU SASAKI

IPC: H01M4/36 ,  H01M4/525 ,  H01M4/62 ,  H01M10/0562 ,  H01M10/42

CPC classification number: H01M4/366 ,  H01M4/525 ,  H01M4/62 ,  H01M10/0562 ,  H01M10/4235 ,  H01M2004/028

Abstract: The 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. When a coarse powder and a fine powder included in the powder of the coated active material are classified by airflow classification such that the mass ratio of the coarse powder and the fine powder is 9:1, the value of R2/R1 is less than 7.1, where R1 represents the mass content ratio of the first coating material in the coarse powder, and R2 represents the mass content ratio of the first coating material in the fine powder.

公开(公告)号：US20240063374A1

公开(公告)日：2024-02-22

申请号：US18500476

申请日：2023-11-02

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： KAZUYA HASHIMOTO ,  IZURU SASAKI

IPC: H01M4/36 ,  H01M4/525 ,  H01M4/62 ,  H01M10/0562 ,  H01M10/42

CPC classification number: H01M4/366 ,  H01M4/525 ,  H01M4/62 ,  H01M10/0562 ,  H01M10/4235 ,  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 log differential pore volume of the coated active material at a pore diameter of 1.2 μm is within a range of greater than or equal to 55 μL/g and less than 152 μL/g. The electrode material of the present disclosure includes a coating material and a solid electrolyte. A battery of the present disclosure includes a positive electrode including the electrode material, a negative electrode, and an electrolyte layer disposed between the positive electrode and the negative electrode.

公开(公告)号：US20230042911A1

公开(公告)日：2023-02-09

申请号：US17960134

申请日：2022-10-05

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： IZURU SASAKI ,  YOSHIAKI TANAKA ,  KAZUYA HASHIMOTO

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

Abstract: A positive electrode material in one aspect of the present disclosure includes: a positive electrode active material; and a first solid electrolyte that covers the surface of the positive electrode active material. The first solid electrolyte contains Li, M1, O, and X1. M1 is at least one element selected from the group consisting of Nb and Ta. X1 is at least one element selected from the group consisting of Cl, Br, and I.