公开(公告)号：US20240105915A1

公开(公告)日：2024-03-28

申请号：US18530339

申请日：2023-12-06

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： KUNIHIKO MINEYA ,  TADAAKI MATSUMURA

IPC: H01M4/36 ,  H01M4/38 ,  H01M4/58 ,  H01M10/0525

CPC classification number: H01M4/364 ,  H01M4/386 ,  H01M4/5825 ,  H01M10/0525 ,  H01M2004/027

Abstract: A composite active material particle of the present disclosure includes a lithium silicate phase, a plurality of silicon particles dispersed in the lithium silicate phase, and an electron-conductive material dispersed in the lithium silicate phase, the electron-conductive material including a carbon material.

公开(公告)号：US20250029993A1

公开(公告)日：2025-01-23

申请号：US18905124

申请日：2024-10-02

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： KUNIHIKO MINEYA ,  TADAAKI MATSUMURA

IPC: H01M4/485 ,  H01M4/02 ,  H01M4/04 ,  H01M10/0562

Abstract: A composite active material particle includes an oxide phase containing an oxide, multiple active material domains containing an active material and dispersed in the oxide phase, and at least one first solid electrolyte having a composition different from the composition of the oxide. The first solid electrolyte covers at least part of the surface of a base particle composed of the oxide phase and the multiple active material domains.

公开(公告)号：US20230361426A1

公开(公告)日：2023-11-09

申请号：US18355436

申请日：2023-07-20

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： KUNIHIKO MINEYA ,  TADAAKI MATSUMURA

IPC: H01M50/44 ,  H01M10/0525 ,  H01M50/417 ,  H01M4/38 ,  H01M50/449

CPC classification number: H01M50/44 ,  H01M10/0525 ,  H01M50/417 ,  H01M4/386 ,  H01M50/449 ,  H01M2004/027

Abstract: A battery includes a first electrode, a second electrode, and a solid electrolyte layer located between the first electrode and the second electrode and including a fibrous material, wherein the solid electrolyte layer includes a first solid electrolyte layer, and a second solid electrolyte layer located between the first solid electrolyte layer and the second electrode, and the content ratio of the fibrous material in the second solid electrolyte layer is higher than the content ratio of the fibrous material in the first solid electrolyte layer.

公开(公告)号：US20250029987A1

公开(公告)日：2025-01-23

申请号：US18905132

申请日：2024-10-02

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： KUNIHIKO MINEYA ,  TADAAKI MATSUMURA

IPC: H01M4/36 ,  H01M4/02 ,  H01M4/485

Abstract: A composite active material particle includes an oxide phase containing an oxide and multiple active material domains containing an active material and dispersed in the oxide phase. When a region occupying a surface layer portion of the composite active material particle is defined as a first region, and a region located more inward than the first region is defined as a second region, the first region includes the oxide phase, the second region includes the oxide phase and the multiple active material domains, and the abundance of oxygen in the first region is higher than the abundance of oxygen in the second region.

公开(公告)号：US20230080525A1

公开(公告)日：2023-03-16

申请号：US18046506

申请日：2022-10-14

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： KENTA NAGAMINE ,  KUNIHIKO MINEYA ,  IZURU SASAKI

IPC: H01M4/36 ,  H01M4/62 ,  H01M4/131 ,  H01M4/139 ,  H01M4/505 ,  H01M4/525 ,  H01M10/0525 ,  H01M10/0562 ,  H01M4/04

Abstract: A positive electrode material contains a positive electrode active material, a solid electrolyte, and a coating material for coating the positive electrode active material, wherein the coating material is denoted by Composition formula (1) below. LiaAbXc (1). Herein, each of a, b, and c is a positive real number, A is at least one selected from the group consisting of N, P, and S, and X contains at least F.