公开(公告)号：US20240194868A1

公开(公告)日：2024-06-13

申请号：US18444615

申请日：2024-02-16

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： YOHEI HAYASHI ,  AKIHIRO SAKAI ,  IZURU SASAKI

IPC: H01M4/525 ,  H01M4/505 ,  H01M10/052 ,  H01M10/0562

CPC classification number: H01M4/525 ,  H01M4/505 ,  H01M10/052 ,  H01M10/0562 ,  H01M2300/008

Abstract: A positive electrode material includes a coated active material including a positive electrode active material and a coating layer and a first solid electrolyte. The coating layer contains a second solid electrolyte and covers at least a portion of a surface of the positive electrode active material. The first solid electrolyte is represented by the following Formula (1):


Liα1M1β1X1γ1  Formula (1)

where α1, β1, and γ1 each independently represent a positive real number; M1 includes calcium, yttrium, and at least one rare earth element other than yttrium; X1 includes at least one selected from the group consisting of F, Cl, Br, and I. The second solid electrolyte is softer than the first solid electrolyte.

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：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：US20230074539A1

公开(公告)日：2023-03-09

申请号：US18046504

申请日：2022-10-14

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： KENTA NAGAMINE ,  IZURU SASAKI

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

Abstract: Provided is a positive electrode material including a first solid electrolyte, a positive electrode active material, and a coating material at least partially coating a surface of the positive electrode active material. The first solid electrolyte is represented by the following compositional formula (1): LiaMbXc. In the compositional formula (1), a, b, and c are positive real numbers and satisfy a mathematical expression: a+b

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.

公开(公告)号：US20230006208A1

公开(公告)日：2023-01-05

申请号：US17930427

申请日：2022-09-08

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： HIROKI KAMITAKE ,  SEIJI NISHIYAMA ,  IZURU SASAKI

IPC: H01M4/62 ,  H01M4/36 ,  H01M4/505 ,  H01M4/525 ,  H01M10/0562 ,  C01F17/36 ,  C01G53/00

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 oxygen and lithium, the positive-electrode active material and the coating layer constitute a coated active material, and the ratio Li/O of the lithium content to the oxygen content in a surface layer portion of the coated active material is 0.26 or less based on the atomic ratio.

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.

公开(公告)号：US20200350625A1

公开(公告)日：2020-11-05

申请号：US16931092

申请日：2020-07-16

Applicant: Panasonic Intellectual Property Management Co., Ltd.

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

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

Abstract: Provided is a battery in which the internal resistance is further decreased. The present disclosure provides a battery, comprising a positive electrode, a negative electrode, and an electrolyte layer provided between the positive electrode and the negative electrode. The electrolyte layer includes a first solid electrolyte material. The first solid electrolyte material includes Li, M, and X, and does not include sulfur. M is at least one selected from the group consisting of metalloid elements and metal elements other than Li. X is at least one selected from the group consisting of Cl, Br, and I. The negative electrode includes a negative electrode active material and a sulfide solid electrolyte.