公开(公告)号：US20250167226A1

公开(公告)日：2025-05-22

申请号：US18839615

申请日：2022-12-13

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Akiko Murata ,  Hiroshi Kawada

IPC: H01M4/525 ,  H01M4/02 ,  H01M4/36

Abstract: A positive electrode active material for a non-aqueous electrolyte secondary battery according to one aspect of the present disclosure is characterized by comprising: a composite oxide that includes at least one element from among Ni, Mn, Co, and Al, and includes W and Li; an intermediate layer that is formed on the composite oxide, that does not include W, and that includes at least one element from among Ca, P, and B; and a coating layer that is formed on the intermediate layer and that includes W.

公开(公告)号：US12283692B2

公开(公告)日：2025-04-22

申请号：US17763987

申请日：2020-09-29

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Hiroshi Kawada ,  Akiko Murata ,  Mitsuhiro Hibino

IPC: H01M4/525 ,  C01G53/00 ,  C01G53/54 ,  H01M4/02 ,  H01M4/505 ,  H01M10/0525

Abstract: This positive electrode active material for nonaqueous electrolyte secondary batteries includes a lithium transition metal complex oxide that has a spinel structure and that is represented by general formula Li1+αNi0.5-xMn1.5-y-zGeyMx+zO4 (in the formula, 0≤α

公开(公告)号：US20240079564A1

公开(公告)日：2024-03-07

申请号：US18273198

申请日：2022-01-21

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Akiko Murata ,  Hiroshi Kawada

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

CPC classification number: H01M4/366 ,  H01M4/505 ,  H01M4/525

Abstract: Provided is an active material contributing to improving the charge/discharge cycle characteristics of a battery. This active material for a non-aqueous electrolyte secondary battery includes: a core capable of reversible intercalation and deintercalation of Li; and a salt attached to the surface of the core, wherein the salt comprises an oxyfluoride represented by general formula M1OFa (2≤a≤6, M1 is at least one element selected from the group consisting of Ti, Zr, Si, P, and B).

公开(公告)号：US20240021812A1

公开(公告)日：2024-01-18

申请号：US18267188

申请日：2021-12-23

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Hiroshi Kawada

IPC: H01M4/525 ,  H01M4/505 ,  H01M10/0569 ,  H01M10/0568 ,  H01M10/0525

CPC classification number: H01M4/525 ,  H01M4/505 ,  H01M10/0569 ,  H01M10/0568 ,  H01M10/0525 ,  H01M2004/027

Abstract: This positive electrode active material contains a first lithium metal composite oxide which is represented by general formula xLiyM1O2-(1−x)LizM1O2 (wherein 0≤x≤1, 1.5≤y≤2.5, 0.9≤z≤1.5, and M1 represents one or more elements that are selected from the group consisting of transition metals, Al, Si, Sn, Ge, Sb, Bi, Mg, Ca and Sr); the first lithium metal composite oxide has a layered structure, while comprising Li element that is coordinated to the position of the oxygen tetrahedron; and the particle diameters of the primary particles are from 0.5 μm to 15 μm.

公开(公告)号：US20230361289A1

公开(公告)日：2023-11-09

申请号：US17920150

申请日：2021-04-20

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Hiroshi Kawada ,  Akiko Murata ,  Mitsuhiro Hibino

IPC: H01M4/505 ,  C01G53/00 ,  H01M4/525 ,  H01M4/36 ,  H01M4/485

CPC classification number: H01M4/505 ,  C01G53/54 ,  H01M4/525 ,  H01M4/366 ,  H01M4/485 ,  C01P2006/40 ,  C01P2002/52 ,  C01P2004/84 ,  H01M2004/028

Abstract: This positive electrode active material for nonaqueous electrolyte secondary batteries comprises: a lithium transition metal composite oxide which is represented by general formula LixM12−yM2yM3zOwFv (wherein 1≤x≤1.2, 0

公开(公告)号：US11594720B2

公开(公告)日：2023-02-28

申请号：US16968950

申请日：2019-01-07

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Hiroshi Kawada ,  Atsushi Fukui

IPC: H01M4/1391 ,  H01M4/62 ,  H01M4/04 ,  H01M4/136 ,  H01M4/131

Abstract: A positive electrode for a secondary battery includes a positive electrode current collector and a positive electrode active material layer that contains a positive electrode active material particle and that is disposed on the surface of the positive electrode current collector. The positive electrode active material particle includes a positive electrode active material particle, a first coating that contains oxide X of metal element M1 and that is attached to the surface of the positive electrode active material particle, and a second coating having lithium-ion permeability that is attached to the surface of the first coating. The second coating contains oxide Y represented by LixM2Oy (0.5≤x

公开(公告)号：US20220216460A1

公开(公告)日：2022-07-07

申请号：US17604144

申请日：2020-04-24

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Kosuke Kuroda ,  Hiroshi Kawada ,  Atsushi Fukui

IPC: H01M4/36 ,  H01M4/525 ,  H01M4/505 ,  H01M4/58 ,  C01G53/00

Abstract: A positive electrode active material for a secondary battery according to an embodiment contains: a first composite oxide component represented by general formula Liα[LixMnyCozMe(1−x−y−z)]O2 (in the formula, Me is at least one selected from among Ni Fe, Ti, Bi, Nb, W, Mo, and Ta, 0.5

公开(公告)号：US11069886B2

公开(公告)日：2021-07-20

申请号：US16357517

申请日：2019-03-19

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Hiroshi Kawada ,  Hiroyuki Matsumoto ,  Atsushi Fukui

IPC: H01M4/131 ,  H01M4/505 ,  H01M4/525 ,  H01M10/0525 ,  H01M4/62 ,  H01M4/04 ,  H01M4/587 ,  H01M4/36 ,  H01M4/139 ,  H01M4/58 ,  H01M4/133 ,  H01M4/136 ,  H01M4/485 ,  H01M4/02

Abstract: A negative electrode for a nonaqueous electrolyte secondary battery includes a negative electrode current collector, a negative electrode active material layer provided on the surface of the negative electrode current collector, and a first film which has lithium ion permeability and which coats at least a portion of the surface of the negative electrode active material layer and partially coats the surface of the negative electrode current collector. The first film preferably contains a first lithium compound containing an element M1, an element A1, and lithium. Herein, M1 is at least one selected from the group consisting of P, Si, B, V, Nb, W, Ti, Zr, Al, Ba, La, and Ta; and A1 is at least one selected from the group consisting of F, S, O, N, and Br.

公开(公告)号：US20210135277A1

公开(公告)日：2021-05-06

申请号：US16640116

申请日：2018-09-21

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Nobuhiko Hojo ,  Hiroyuki Matsumoto ,  Kenji Matsubara ,  Hiroshi Kawada ,  Atsushi Fukui

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

Abstract: An aqueous rechargeable battery includes: a positive electrode including a positive electrode current collector and a positive electrode active material layer provided on a surface of the positive electrode current collector; a negative electrode including a negative electrode current collector and a negative electrode active material layer provided on a surface of the negative electrode current collector; and an aqueous electrolyte solution containing a lithium salt and water. The positive electrode active material layer contains one or more positive electrode active materials and one or more lithium ion-conducting solid electrolytes; and the positive electrode active materials include a lithium transition metal oxide.

公开(公告)号：US12230794B2

公开(公告)日：2025-02-18

申请号：US17604654

申请日：2020-04-16

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Hiroshi Kawada ,  Kosuke Kuroda ,  Atsushi Fukui

IPC: H01M4/505 ,  H01M4/02 ,  H01M4/525

Abstract: This lithium transition metal composite oxide, which configures a secondary battery positive electrode active material, is a composite oxide represented by general formula Liα[LixMnyCozMe(1-x-y-z)]O2 (in the formula, Me is at least one species selected from Ni, Fe, Ti, Bi and Nb, and 0.5