Solid electrolyte and/or electroactive material
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.
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.