Alkali ION conducting plastic crystals

Patent metadata

Field	Value
Publication number	US-12100804-B2
Application number	US-202318330948-A
Country	US
Kind code	B2
Filing date	Jun 7, 2023
Priority date	Mar 14, 2013
Publication date	Sep 24, 2024
Grant date	Sep 24, 2024

Abstract

A solid electrolyte represented by general formula LiySiRx(MO4), where x is an integer from 1 to 3 inclusive, y=4−x, each R present is independently C1-C3 alkyl or C1-C3 alkoxy, and M is sulfur, selenium, or tellurium. Methods of making the solid electrolyte include combining a phenylsilane and a first acid to yield mixture including benzene and a second acid, and combining at least one of an alkali halide, and alkali amide, and an alkali alkoxide with the second acid to yield a product d represented by general formula LiySiRx(MO4)y. The second acid may be in the form of a liquid or a solid. The phenylsilane includes at least one C1-C3 alkyl substituent or at least one C1-C3 alkoxy substituent, and the first acid includes at least one of sulfuric acid, selenic acid, and telluric acid.

First claim

What is claimed is:

1. A lithium ion battery comprising:
an anode comprising an anode material;
a cathode comprising a cathode material; and
a solid electrolyte in contact with the anode material and the cathode material, wherein the solid electrolyte is represented by general formula [AB x−y C y ] y− [M] y + , wherein
A is tellurium,
x is 6,
y=1 to x−1, inclusive,
each B is independently a halogen, a cyano group, C1 or C2 alkoxy, or acetate,
each C is independently sulfate, selenite, fluorophosphate, or trifluoromethane phosphate,
M is an alkali metal, and
[AB x−y C y ] y− [M] y + is ionically neutral.

2. The lithium ion battery of claim 1 , wherein each B is independently C1 or C2 alkoxy.

3. The lithium ion battery of claim 1 , wherein at least one B is methoxy.

4. The lithium ion battery of claim 1 , wherein at least one B is ethoxy.

5. The lithium ion battery of claim 1 , wherein at least one B is a halogen.

6. The lithium ion battery of claim 1 , wherein at least one B is acetate.

7. The lithium ion battery of claim 1 , wherein y=1.

8. The lithium ion battery of claim 1 , wherein y=2.

9. The lithium ion battery of claim 1 , wherein y=3.

10. The lithium ion battery of claim 1 , wherein y=4.

11. The lithium ion battery of claim 1 , wherein y=5.

12. The lithium ion battery of claim 1 , wherein [AB x−y C y ] y− [M] y + is in the form of a waxy solid.

13. The lithium ion battery of claim 1 , wherein M is lithium.

14. The lithium ion battery of claim 1 , wherein each C is sulfate.

15. The lithium ion battery of claim 1 , wherein the cathode material comprises LiFePO 4 .

16. The lithium ion battery of claim 1 , wherein the cathode material comprises LiCoO 2 .

17. The lithium ion battery of claim 1 , further comprising a separator between the anode and the cathode.

18. The lithium ion battery of claim 1 , wherein the separator defines pores containing the solid electrolyte.

19. The lithium ion battery of claim 1 , wherein the solid electrolyte comprises two or more of the solid electrolytes represented by general formula [AB x−y C y ] y− [M] y + .

20. The lithium ion battery of claim 1 , wherein the anode material comprises lithium foil.

Assignees

• Univ Arizona State

Inventors

• Angell Charles Austen
• Klein Iolanda Santana
• Tucker Telpriore Greg

Classifications

• H01M10/0567

  characterised by the additives · CPC title

• H01M10/0565

  Polymeric materials, e.g. gel-type or solid-type · CPC title

• H01M10/056

  characterised by the materials used as electrolytes, e.g. mixed inorganic/organic electrolytes · CPC title

• H01M2300/0068

  inorganic · CPC title

• H01M2300/0065

  Solid electrolytes · CPC title