Alkali ion conducting plastic crystals

Patent metadata

Field	Value
Publication number	US-11695153-B2
Application number	US-202117403594-A
Country	US
Kind code	B2
Filing date	Aug 16, 2021
Priority date	Mar 14, 2013
Publication date	Jul 4, 2023
Grant date	Jul 4, 2023

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 solid electrolyte 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 solid electrolyte of claim 1 , wherein each B is independently C1 or C2 alkoxy.

3. The solid electrolyte of claim 1 , wherein at least one B is methoxy.

4. The solid electrolyte of claim 1 , wherein at least one B is ethoxy.

5. The solid electrolyte of claim 1 , wherein at least one B is a halogen.

6. The solid electrolyte of claim 1 , wherein at least one B is acetate.

7. The solid electrolyte of claim 1 , wherein y=1.

8. The solid electrolyte of claim 1 , wherein y=2.

9. The solid electrolyte of claim 1 , wherein y=3.

10. The solid electrolyte of claim 1 , wherein y=4.

11. The solid electrolyte of claim 1 , wherein y=5.

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

13. The solid electrolyte of claim 1 , wherein M is lithium.

14. The solid electrolyte of claim 1 , wherein each C is sulfate.

Assignees

• Klein Iolanda Santana
• Tucker Telpriore Greg
• Univ Arizona State

Inventors

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

Classifications

• H01M2300/0065

  Solid electrolytes · CPC title

• H01M10/0561

  the electrolyte being constituted of inorganic materials only · CPC title

• H01M10/0564 Primary

  the electrolyte being constituted of organic materials only · CPC title

• H01M10/0567

  characterised by the additives · CPC title

• C07F7/025

  without C-silicon linkages · CPC title