公开(公告)号：US11955599B2

公开(公告)日：2024-04-09

申请号：US17161001

申请日：2021-01-28

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Tatsuya Oshima ,  Izuru Sasaki ,  Seiji Nishiyama ,  Akira Kawase

IPC: H01M10/0562 ,  H01M4/04 ,  H01M4/36 ,  H01M10/0525 ,  H01M4/02

CPC classification number: H01M10/0562 ,  H01M4/0407 ,  H01M4/366 ,  H01M10/0525 ,  H01M2004/027 ,  H01M2004/028 ,  H01M2300/0068

Abstract: The present disclosure provides a negative electrode material that can improve the charge-discharge efficiency of a battery. A negative electrode material includes a reduced form of a first solid electrolyte material and a conductive auxiliary. The first solid electrolyte material is denoted by Formula (1): Li60MβXγ. Herein, in Formula (1), each of α, β, and γ is a value greater than 0, M represents at least one element selected from the group consisting of metal elements except Li and semimetals, and X represents at least one element selected from the group consisting of F, Cl, Br, and I.

公开(公告)号：US11949064B2

公开(公告)日：2024-04-02

申请号：US17160930

申请日：2021-01-28

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Tatsuya Oshima ,  Izuru Sasaki ,  Yuta Sugimoto ,  Seiji Nishiyama ,  Masashi Sakaida ,  Akira Kawase

IPC: H01M10/0562 ,  H01M4/62 ,  H01M10/0525 ,  H01M10/0585 ,  H01M10/44 ,  H01M4/02

CPC classification number: H01M10/0562 ,  H01M4/62 ,  H01M10/0525 ,  H01M10/0585 ,  H01M10/446 ,  H01M2004/027 ,  H01M2300/008

Abstract: The present disclosure provides a negative electrode material that can improve the cycle characteristics of a battery. The negative electrode material according to the present disclosure contains a reduced form of a solid electrolyte material. The solid electrolyte material is denoted by Formula (1): LiαMβXγ. Herein, in Formula (1), each of α, β, and γ is a value greater than 0, M represents at least one element selected from the group consisting of metal dements except Li and semimetals, and X represents at least one dement selected from the group consisting of F, Cl, Br, and I.

公开(公告)号：US11489195B2

公开(公告)日：2022-11-01

申请号：US16698971

申请日：2019-11-28

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Akihiro Sakai ,  Seiji Nishiyama ,  Kenta Nagamine

IPC: H01M10/0562 ,  H01M10/0525

Abstract: A solid electrolyte material is composed of Li, M, and X, where M is at least one kind of element selected from the group consisting of metalloid elements and metallic elements other than Li, and X is at least one kind of element selected from the group consisting of F, Cl, Br and I. In the solid electrolyte material, the mathematical formula FWHM/2θp≤0.015 is satisfied, where FWHM represents a half bandwidth of an X-ray diffraction peak having the highest intensity within a range of a diffraction angle 2θ of not less than 25 degrees and not more than 35 degrees in an X-ray diffraction pattern provided by an X-ray diffraction measurement of the solid electrolyte material; the X-ray diffraction measurement using a Cu-Kα ray; and 2θp represents a diffraction angle of a center of the X-ray diffraction peak.

公开(公告)号：US12166172B2

公开(公告)日：2024-12-10

申请号：US17518588

申请日：2021-11-04

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Tatsuya Oshima ,  Izuru Sasaki ,  Yuta Sugimoto ,  Seiji Nishiyama ,  Akinobu Miyazaki

IPC: H01M10/0562 ,  H01B1/12 ,  H01M4/04 ,  H01M10/0525

Abstract: An ion conductor material includes a solid-electrolyte material and a resin binder. The solid-electrolyte material includes Li, M, and X. The M is at least one selected from the group consisting of metal and metalloid elements other than Li. The X is at least one selected from the group consisting of F, Cl, Br, and I. The molar ratio of a modification group included in the resin binder to the solid-electrolyte material is less than or equal to 0.0002.

公开(公告)号：US20230091362A1

公开(公告)日：2023-03-23

申请号：US18052577

申请日：2022-11-04

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Seiji Nishiyama

IPC: H01M50/564 ,  H01M50/105 ,  H01M50/129 ,  H01M10/052 ,  H01M50/533 ,  H01M50/534

Abstract: A battery includes a power generating element including a positive electrode layer, a negative electrode layer, and an electrolyte layer, an inner terminal electrode electrically connected to the power generating element, and a laminate film accommodating the power generating element and the inner terminal electrode. The laminate film includes a metal layer, an inner resin layer located closer to the power generating element than the metal layer, and an outer resin layer on an opposite side of the metal layer from the inner resin layer. The inner resin layer has an inner opening through which the metal layer is exposed. The inner terminal electrode is electrically connected to the metal layer through the inner opening. The inner terminal electrode and the metal layer each have an uneven surface over a contact area between the inner terminal electrode and the metal layer. The uneven surfaces engage with each other.