公开(公告)号：US20240128462A1

公开(公告)日：2024-04-18

申请号：US18527310

申请日：2023-12-03

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： TAKUJI TSUJITA ,  TAKANORI OMAE ,  YUI MASUMOTO

IPC: H01M4/62 ,  C01G53/00 ,  H01M4/131 ,  H01M4/36 ,  H01M4/505 ,  H01M4/525 ,  H01M4/60 ,  H01M10/0562

CPC classification number: H01M4/628 ,  C01G53/50 ,  H01M4/131 ,  H01M4/366 ,  H01M4/505 ,  H01M4/525 ,  H01M4/60 ,  H01M10/0562 ,  H01M2004/028

Abstract: A coated positive electrode active material includes a positive electrode active material and a coating material that covers at least a part of a surface of the positive electrode active material. The coating material includes a phosphoric acid ester. The phosphoric acid ester includes at least one selected from the group consisting of an alkyl group, an alkenyl group, and an alkynyl group. A positive electrode material includes the coated positive electrode active material and a first solid electrolyte material. The first solid electrolyte material includes Li, M, and X. M is at least one selected from the group consisting of metal elements and metalloid elements other than Li. X is at least one selected from the group consisting of F, Cl, Br, and I.

公开(公告)号：US20240055654A1

公开(公告)日：2024-02-15

申请号：US18494705

申请日：2023-10-25

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： TOMOFUMI HAMAMURA ,  YOSHIMASA NAKAMA ,  YUI MASUMOTO

IPC: H01M10/0562 ,  H01M4/505 ,  H01M4/525 ,  H01M10/0525 ,  C01F17/36

CPC classification number: H01M10/0562 ,  H01M4/505 ,  H01M4/525 ,  H01M10/0525 ,  C01F17/36 ,  H01M2300/008 ,  H01M2004/028

Abstract: The solid electrolyte material contains a halide solid electrolyte. The halide solid electrolyte contains Li, at least one element selected from the group consisting of metalloids and metal elements other than Li, and at least one element selected from the group consisting of F, Cl, Br, and I. The halide solid electrolyte has a crystallite size greater than or equal to 40 nm.