Halide material producing method and halide material

Patent metadata

Field	Value
Publication number	US-2024425383-A1
Application number	US-202418826242-A
Country	US
Kind code	A1
Filing date	Sep 6, 2024
Priority date	Mar 24, 2022
Publication date	Dec 26, 2024
Grant date	—

Abstract

A halide material producing method according to the present disclosure includes (A) subjecting a material mixture containing a first compound containing Li, M1, and X1 and a second compound containing M2 to mechanochemical treatment, wherein each of M1 and M2 represents one type of element selected from a metal element and a metalloid element, and X1 represents at least one selected from the group consisting of F, Cl, Br, and I.

First claim

What is claimed is:

1 . A halide material producing method comprising:
(A) subjecting a material mixture containing a first compound containing Li, M1, and X1 and a second compound containing M2 to mechanochemical treatment, wherein each of M1 and M2 represents one type of element selected from a metal element and a metalloid element, and X1 represents at least one selected from the group consisting of F, Cl, Br, and I.

2 . The producing method according to claim 1 ,
wherein the first compound is a particle.

3 . The producing method according to claim 1 ,
wherein the material mixture is subjected to the mechanochemical treatment by using a ball mill in (A) above.

4 . The producing method according to claim 1 ,
wherein the first compound has a crystal phase.

5 . The producing method according to claim 1 ,
wherein M1 represents Al or Ti.

6 . The producing method according to claim 1 ,
wherein X1 contains F.

7 . The producing method according to claim 1 ,
wherein the first compound is denoted by a formula: Li 6-ab M1 b X1 6 (where a represents a valence of M1, and 0<b≤1.5 is satisfied).

8 . The producing method according to claim 1 ,
wherein M2 represents Al or Ti.

9 . The producing method according to claim 1 ,
wherein the second compound further contains X2, where X2 represents at least one selected from the group consisting of F, Cl, Br, and I.

10 . The producing method according to claim 1 , further comprising:
(B) synthesizing the first compound, wherein (B) above is performed before (A) above.

11 . The producing method according to claim 10 ,
wherein the first compound is synthesized by heat-treating a raw material mixture in (B) above.

12 . The producing method according to claim 10 ,
wherein the first compound is synthesized by subjecting a raw material to the mechanochemical treatment in (B) above.

13 . A halide material comprising:
Compound A composed of Li, M1, M2, and X, wherein each of M1 and M2 represents one type of element selected from a metal element and a metalloid element, X represents at least one selected from the group consisting of F, Cl, Br, and I, and Compound A above has an amorphous phase.

14 . The halide material according to claim 13 ,
wherein neither LiX nor M1X m nor M2X n is substantially contained, where m represents a valence of M1, and n represents a valence of M2.

15 . The halide material according to claim 13 , further comprising:
Compound B containing a compound composed of Li, M1, and X.

16 . The halide material according to claim 15 ,
wherein Compound B above contains a first component having a first melting point and a second component having a second melting point different from the first melting point.

17 . The halide material according to claim 16 ,
wherein the first melting point is higher than the second melting point, and Compound B above contains the first component as a primary component.

18 . The halide material according to claim 16 ,
wherein ionic conductivity of the first component is higher than ionic conductivity of the second component, and Compound B above contains the first component as a primary component.

Assignees

• Panasonic Ip Man Co Ltd

Inventors

• Koga Eiichi

Classifications

• H01M10/052

  Li-accumulators · CPC title

• H01M2300/008

  Halides · CPC title

• C01P2002/72

  by d-values or two theta-values, e.g. as X-ray diagram · CPC title

• C01P2006/40

  Electric properties · CPC title

• H01M10/0562

  Solid materials · CPC title