IP Library › Granted Patent US 12,269,752
Granted Patent B2
US 12,269,752 · App. 17/323,920 · Granted Apr 8, 2025

Halide production method

Inventors: Takashi Kubo (Hyogo, JP); Yusuke Nishio (Osaka, JP); Akihiro Sakai (Nara, JP); Akinobu Miyazaki (Osaka, JP)
Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMNT CO., LTD.
C01F17/271C01F17/36H01M10/0525H01M10/0562C01P2006/40H01M2300/008
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Quick Facts
Patent No.
US 12,269,752
App. No.
17/323,920
Granted
Apr 8, 2025
Kind
B2
Abstract

A method for producing a halide includes heat-treating a mixed material in an inert gas atmosphere, the mixed material being a mixture of (NH 4 ) a MX 3+a and LiZ. The M includes at least one element selected from the group consisting of Y, a lanthanoid, and Sc. The X is at least one element selected from the group consisting of Cl, Br, I, and F. The Z is at least one element selected from the group consisting of Cl, Br, I, and F. Furthermore, 0<a≤3 is satisfied.

Claims (54)

1. A method for producing a halide, the method comprising:

heat-treating a mixed material in an inert gas atmosphere, the mixed material being a mixture of (NH 4 ) a MX 3 +a and LiZ,

wherein the M includes at least one element selected from the group consisting of Y, a lanthanoid, and Sc,

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

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

wherein 0<a≤3 is satisfied, and

wherein, in the heat-treating, the mixed material is heat-treated at a temperature of greater than or equal to 500° C. and less than or equal to 650° C.

2. The method for producing a halide according to claim 1 , wherein, in the heat-treating, the mixed material is heat-treated for a time period of greater than or equal to 1 hour and less than or equal to 72 hours.

3. The method for producing a halide according to claim 1 , wherein the M is at least one element selected from the group consisting of Y, Sm, and Gd.

4. The method for producing a halide according to claim 1 , wherein 0.5≤a≤3 is satisfied.

5. The method for producing a halide according to claim 4 , wherein a=3.

6. The method for producing a halide according to claim 1 , wherein the X is at least one element selected from the group consisting of Cl, Br, and I, and wherein the Z is at least one element selected from the group consisting of Cl, Br, and I.

7. The method for producing a halide according to claim 1 , the method further comprising:

preparing the (NH 4 ) a MX 3 +a,

wherein, in the preparing, the (NH 4 ) a MX 3+a is synthesized by a solid-phase reaction between M 2 O 3 and NH 4 X.

8. The method for producing a halide according to claim 7 , further comprising:

after the (NH 4 ) a MX 3+a is synthesized, weighing the (NH 4 ) a MX 3+a and the LiZ according to a desired molar ratio; and

pulverizing and mixing the (NH 4 ) a MX 3+a and the LiZ to form the mixed material.

9. The method for producing a halide according to claim 1 , further comprising:

weighing the (NH 4 ) a MX 3+a and the LiZ according to a desired molar ratio; and

pulverizing and mixing the (NH 4 ) a MX 3+a and the LiZ to form the mixed material.

10. The method for producing a halide according to claim 6 , wherein X is different from Z.

11. A method for producing a halide, the method comprising:

heat-treating a mixed material in an inert gas atmosphere, the mixed material being a mixture of (NH 4 ) a MX 3+a and LiZ,

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

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

wherein 0<a≤3 is satisfied, and

wherein M is Y.

12. The method for producing a halide according to claim 11 , wherein a=3.

13. The method for producing a halide according to claim 11 , further comprising:

weighing the (NH 4 ) a MX 3+a and the LiZ according to a desired molar ratio; and

pulverizing and mixing the (NH 4 ) a MX 3+a and the LiZ to form the mixed material.

14. The method for producing a halide according to claim 11 , wherein X is different from Z.

15. A method for producing a halide, the method comprising:

heat-treating a mixed material in an inert gas atmosphere, the mixed material being a mixture of (NH 4 ) a MX 3+a and LiZ,

wherein the M includes at least one element selected from the group consisting of Y, a lanthanoid, and Sc,

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

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

wherein a=3.

16. The method for producing a halide according to claim 15 , further comprising:

weighing the (NH 4 ) a MX 3+a and the LiZ according to a desired molar ratio; and

pulverizing and mixing the (NH 4 ) a MX 3+a and the LiZ to form the mixed material.

17. The method for producing a halide according to claim 15 , wherein X is different from Z.

18. A method for producing a halide, the method comprising:

heat-treating a mixed material in an inert gas atmosphere, the mixed material being a mixture of (NH 4 ) a MX 3+a and LiZ,

wherein the M includes at least one element selected from the group consisting of Y, a lanthanoid, and Sc,

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

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

wherein 0<a≤3 is satisfied, and

wherein, in the heat-treating, the mixed material is heat-treated at a temperature of greater than or equal to 500° C.

19. The method for producing a halide according to claim 18 , further comprising:

weighing the (NH 4 ) a MX 3+a and the LiZ according to a desired molar ratio; and

pulverizing and mixing the (NH 4 ) a MX 3+a and the LiZ to form the mixed material.

20. The method for producing a halide according to claim 18 , wherein X is different from Z.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Aug 30, 2021
From: KUBO, TAKASHI; NISHIO, YUSUKE; SAKAI, AKIHIRO; MIYAZAKI, AKINOBU
To: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
Reel/Frame 057332/0881 →
Priority Claims (1)
JP 2018-247311 · Dec 28, 2018 · national
Continuity (2)
Continuation PCTJP2019025437 · Jun 26, 2019
Related Publication 20210269323A1 · Sep 2, 2021
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