公开(公告)号：US20230084047A1

公开(公告)日：2023-03-16

申请号：US18049192

申请日：2022-10-24

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Kunihiko MINEYA ,  Kenta NAGAMINE

IPC: H01M4/62 ,  H01M10/0562 ,  H01M4/587 ,  H01M4/133 ,  H01M4/1393

Abstract: A negative electrode material of the present disclosure includes a negative electrode active material, a solid electrolyte, and a coating material coating the negative electrode active material. The coating material is represented by the following composition formula (1), where a, b, and c are each a positive real number, A is at least one selected from the group consisting of P and S, and X is F and O. LiaAbXc  (1)

公开(公告)号：US20230067002A1

公开(公告)日：2023-03-02

申请号：US17966436

申请日：2022-10-14

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Kenta NAGAMINE ,  Izuru SASAKI

IPC: H01M10/0562 ,  H01M10/052 ,  H01M10/44

Abstract: A battery of the present disclosure includes a positive electrode, a negative electrode, and an electrolyte layer provided between the positive electrode and the negative electrode. The positive electrode contains a positive electrode active material and a first solid electrolyte. The electrolyte layer contains a second solid electrolyte. The first solid electrolyte contains lithium and two or more types of anions. The second solid electrolyte contains lithium and two or more types of anions. The molar ratio of Br to the two or more types of anions contained in the first solid electrolyte is smaller than the molar ratio of Br to the two or more types of anions contained in the second solid electrolyte.

公开(公告)号：US20220328869A1

公开(公告)日：2022-10-13

申请号：US17842587

申请日：2022-06-16

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Kenji NAGAO ,  Yuta SUGIMOTO ,  Tatsuya OSHIMA ,  Kenta NAGAMINE ,  Akinobu MIYAZAKI ,  Seiji NISHIYAMA

IPC: H01M10/0562 ,  H01M4/66 ,  H01M4/36

Abstract: A battery including a first and second electrode layer, and an electrolyte layer including a first solid electrolyte material. The battery satisfies (A), (B), (C), or (D). (A) The current collector layer has, in at least a partial region thereof, a copper content of less than 50 mass %. (B) At least one selected from the group of the current collector layer and an electrode lead has, in at least a partial region thereof, a copper content of less than 50 mass %. (C) At least one selected from the group of the current collector layer and an exterior body has, in at least a partial region thereof, a copper content of less than 50 mass %. (D) at least one selected from the group of the current collector layer, the electrode lead, and the exterior body has, in at least a partial region thereof, a copper content of less than 50 mass %.

公开(公告)号：US20240347766A1

公开(公告)日：2024-10-17

申请号：US18753861

申请日：2024-06-25

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Kenta NAGAMINE ,  Akihiro SAKAI

IPC: H01M10/0562 ,  C01F17/36 ,  H01M4/62 ,  H01M10/0525

CPC classification number: H01M10/0562 ,  C01F17/36 ,  H01M4/62 ,  H01M10/0525 ,  C01P2002/52 ,  C01P2002/72 ,  C01P2006/40 ,  H01M2300/008

Abstract: A solid electrolyte material is composed of Li, M, and X. M is at least one selected from the group consisting of metal elements other than Li and metalloids. X is at least one selected from the group consisting of F, Cl, Br, and I. FWHM/2θp≤0.015 is satisfied, wherein FWHM represents a half width of an X-ray diffraction peak in an X-ray diffraction pattern obtained by performing X-ray diffraction measurement on the solid electrolyte material by using Cu—Kα radiation, the X-ray diffraction peak having the highest intensity within a range of diffraction angles 2θ greater than or equal to 25° and less than or equal to 35°, and 2θp represents a diffraction angle at a center of the X-ray diffraction peak.

公开(公告)号：US20220393168A1

公开(公告)日：2022-12-08

申请号：US17888055

申请日：2022-08-15

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Kenta NAGAMINE ,  Izuru SASAKI ,  Seiji NISHIYAMA

IPC: H01M4/583 ,  H01M4/58

Abstract: A positive electrode material of the present disclosure includes: a material represented by the following composition formula (1); and a carbon material capable of occluding at least one selected from the group consisting of a simple substance of halogen and a halide, LiaMbXc . . . Formula (1) where a, b, and c are each a value greater than 0, M includes at least one selected from the group consisting of metal elements other than Li and metalloid elements, and X includes a halogen element.