Solid electrolyte and/or electroactive material

Patent metadata

Field	Value
Publication number	US-10177406-B2
Application number	US-201615155354-A
Country	US
Kind code	B2
Filing date	May 16, 2016
Priority date	Jul 21, 2015
Publication date	Jan 8, 2019
Grant date	Jan 8, 2019

Abstract

Solid electrolyte materials as well as their applications and methods of manufacture are disclosed. In one embodiment, a solid electrolyte material has a formula of A 3+δ Cl 1−δ B δ O, where δ is greater than 0. In the above formula, A is at least one of Li and Na, and B is at least one of S, Se, and N. In another embodiment, a solid electrolyte material is a crystal structure having the general formula A 3 XO, where A is at least one of Li and Na. Additionally, X is Cl, at least a portion of which is substituted with at least one of S, Se, and N. The solid electrolyte material also includes interstitial lithium ions and/or interstitial sodium ions located in the crystal structure.

First claim

What is claimed is:

1. A solid electrolyte material comprising:
a material of the formula
A 3+δ Cl 1−δ B δ O,

wherein
δ is greater than 0 and less than or equal to 0.05,
A is Li, and
B is at least one of S and N.

2. The solid electrolyte material of claim 1 , wherein δ is between or equal to 0.0025 and 0.025.

3. The solid electrolyte material of claim 1 , wherein B is S.

4. The solid electrolyte material of claim 1 , wherein B is N.

5. The solid electrolyte material of claim 1 , wherein the material has an antiperovskite crystal structure.

6. The solid electrolyte material of claim 1 , wherein a conductivity of the material is between or equal to 10 −1 mS cm −1 and 10 −2 mS cm −1 .

7. A solid electrolyte material comprising:
a crystal structure having the general formula
A 3+δ Cl 1−δ B δ O,

wherein
δ is greater than 0 and less than or equal to 0.05,
A is Li, and
B is at least one of S and N; and

interstitial lithium ions and/or interstitial sodium ions in the crystal structure.

8. The solid electrolyte material of claim 7 , wherein a concentration of the interstitial lithium and/or interstitial sodium ions in the crystal structure is between or equal to 0.02 atomic percent and 1 atomic percent.

9. The solid electrolyte material of claim 7 , wherein B includes S.

10. The solid electrolyte material of claim 7 , wherein B includes N.

11. The solid electrolyte material of claim 7 , wherein the crystal structure is an antiperovskite crystal structure.

12. The solid electrolyte material of claim 7 , wherein a conductivity of the material is between or equal to 10 −1 mS cm −1 and 10 −2 mS cm −1 .

13. An electrochemical device comprising:
a first electrode;
a second electrode; and
a solid electrolyte material of the formula A 3+δ Cl 1−δ B δ O disposed between the first and second electrodes,
wherein
δ is greater than 0 and less than or equal to 0.05,
A is Li, and
B is at least one of S and N.

14. The electrochemical device of claim 13 , wherein δ is between or equal to 0.0025 and 0.025.

15. The electrochemical device of claim 13 , wherein the solid electrolyte material has an antiperovskite crystal structure.

16. An electrochemical device comprising:
a first electrode;
a second electrode; and
a solid electrolyte material disposed between the first and second electrodes,
wherein the solid electrolyte material includes a crystal structure having the general formula
A 3+δ Cl 1−δ B δ O,

wherein
δ is greater than 0 and less than or equal to 0.05,
A is Li, and
B is at least one of S and N; and

interstitial lithium ions and/or interstitial sodium ions in the crystal structure.

17. The electrochemical device of claim 16 , wherein a concentration of the lithium and/or sodium ions in the crystal structure is between or equal to 0.02 atomic percent and 1 atomic percent.

18. The electrochemical device of claim 16 , wherein the crystal structure is an antiperovskite crystal structure.

19. The solid electrolyte material of claim 1 , wherein δ is between or equal to 0.001 and 0.05.

20. The solid electrolyte material of claim 13 , wherein δ is between or equal to 0.001 and 0.05.

Assignees

• Samsung Electronics Co Ltd
• Massachusetts Inst Technology

Inventors

• Miara Lincoln J
• Richards William D
• Wang Yan E
• Kim Jae Chul
• Ceder Gerbrand

Classifications

• H01M2300/0071

  Oxides · CPC title

• H01M10/0525

  Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries · CPC title

• H01M10/0562 Primary

  Solid materials · CPC title

• H01M10/054

  Accumulators with insertion or intercalation of metals other than lithium, e.g. with magnesium or aluminium · CPC title

• Y02E60/10

  Energy storage using batteries · CPC title