公开(公告)号：US20230066483A1

公开(公告)日：2023-03-02

申请号：US18046505

申请日：2022-10-14

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： KENTA NAGAMINE ,  IZURU SASAKI

IPC: H01M10/0562 ,  H01M4/485 ,  H01M10/0525

Abstract: The positive electrode material according to an aspect of the present disclosure includes a first solid electrolyte, a positive electrode active material, and a coating material coating the surface of the positive electrode active material. The first solid electrolyte is represented by the following compositional formula: LiaMbOcXd. In the compositional formula, a, b, c, and d are positive real numbers; M is at least one selected from the group consisting of Ta and Nb; and X is at least one selected from the group consisting of Cl, Br, and I.

公开(公告)号：US20210280907A1

公开(公告)日：2021-09-09

申请号：US17329145

申请日：2021-05-25

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： NORIHITO FUJINOKI ,  MASASHI SAKAIDA ,  KENTA NAGAMINE ,  AKIHIRO SAKAI ,  AKINOBU MIYAZAKI

IPC: H01M10/0562

Abstract: A solid electrolyte consists essentially of Li, M, and X. M includes at least one element selected from the group consisting of Gd, Tb, and Sm. X is at least one element selected from the group consisting of Cl, Br, and I.

公开(公告)号：US20210273259A1

公开(公告)日：2021-09-02

申请号：US17326390

申请日：2021-05-21

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： KENTA NAGAMINE ,  AKIHIRO SAKAI

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

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.