Granted Patent B2

US 12,542,300 · App. 18/308,329 · Granted Feb 3, 2026

Inventors: Yoshiaki Tanaka (Kyoto, JP); Tetsuya Asano (Nara, JP); Akihiro Sakai (Nara, JP)

Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.

H01M10/0562H01M2300/008

Abstract

Claims (25)

1 . A solid electrolyte material comprising:

Li;

Zr;

Fe;

O; and

X, wherein

the X is at least one selected from the group consisting of F, Cl, Br, and I, and

in an X-ray diffraction pattern obtained by X-ray diffraction measurement using a Cu-Kα ray,

a first peak is present within a range of a diffraction angle 2θ from 14.7° to 15.1°,

a second peak is present within a range of the diffraction angle 2θ from 29.9° to 30.7°, and

a third peak is present within a range of the diffraction angle 2θ from 34.1° to 34.8°.

2 . The solid electrolyte material according to claim 1 , wherein

the X includes Cl.

3 . The solid electrolyte material according to claim 1 , wherein

a molar ratio of the Li to a sum of the Zr and the Fe is 0.4 or more and 2.0 or less, and

a molar ratio of the O to the X is 0.05 or more and 0.25 or less.

4 . The solid electrolyte material according to claim 1 , wherein

a molar ratio of the Zr to a sum of the Zr and the Fe is 0.3 or more and 0.7 or less.

5 . The solid electrolyte material according to claim 1 , wherein

a molar ratio of the Li to a sum of the Zr and the Fe is 0.6 or more and 1.2 or less.

6 . A battery comprising:

a positive electrode;

a negative electrode; and

an electrolyte layer disposed between the positive electrode and the negative electrode, wherein

at least one selected from the group consisting of the positive electrode, the negative electrode, and the electrolyte layer includes the solid electrolyte material according to claim 1 .

Assignments (1)

Priority Claims (1)

Continuity (2)

References Cited (14)