Lithium-conducting sulfur compound cathode for lithium-sulfur batteries

Patent metadata

Field	Value
Publication number	US-9466834-B2
Application number	US-201313974854-A
Country	US
Kind code	B2
Filing date	Aug 23, 2013
Priority date	Aug 23, 2013
Publication date	Oct 11, 2016
Grant date	Oct 11, 2016

Abstract

A lithium sulfur cell has a cathode including Li 3 PS 4+n (0<n<9), an electrolyte, and an anode comprising lithium. A cathode for a lithium sulfur cell is also disclosed.

First claim

We claim:

1. A lithium sulfur cell, comprising:
a cathode comprising Li 3 PS 4+n (0<n<9, wherein n is an integer);
an electrolyte; and
an anode comprising lithium.

2. The lithium sulfur cell of claim 1 , wherein the cathode comprises Li 3 PS 5 .

3. The lithium sulfur cell of claim 1 , wherein the cathode comprises Li 3 PS 6 .

4. The lithium sulfur cell of claim 1 , wherein the cathode comprises Li 3 PS 7 .

5. The lithium sulfur cell of claim 1 , wherein the cathode comprises Li 3 PS 8 .

6. The lithium sulfur cell of claim 1 , wherein the cathode comprises Li 3 PS 9 .

7. The lithium sulfur cell of claim 1 , wherein the cathode comprises Li 3 PS 10 .

8. The lithium sulfur cell of claim 1 , wherein the cathode comprises Li 3 PS 11 .

9. The lithium sulfur cell of claim 1 , wherein the cathode comprises Li 3 PS 12 .

10. The lithium sulfur cell of claim 1 , wherein the electrolyte comprises at least one selected from the group consisting of lithium thiophosphate, lithium lanthanum zirconium oxide, lithium lanthanum titanium oxide, lithium boron hydride, and lithium iodide, and combinations thereof.

11. A cathode for a lithium sulfur cell, comprising Li 3 PS 4+n (0<n<9, wherein n is an integer).

12. The cathode of claim 11 , comprising Li 3 PS 5 .

13. The cathode of claim 11 , comprising Li 3 PS 6 .

14. The cathode of claim 11 , comprising Li 3 PS 7 .

15. The cathode of claim 11 , comprising Li 3 PS 8 .

16. The cathode of claim 11 , comprising Li 3 PS 9 .

17. The cathode of claim 11 , comprising Li 3 PS 10 .

18. The cathode of claim 11 , comprising Li 3 PS 11 .

19. The cathode of claim 11 , comprising Li 3 PS 12 .

Assignees

• Ut Battelle Llc

Inventors

• Liang Chengdu
• Dudney Nancy J
• Lin Zhan
• Liu Zengcai

Classifications

• Y02T10/7011

  Cross-Sectional Technologies · mapped topic

• H01M2004/028

  Positive electrodes · CPC title

• H01M4/1397 Primary

  of electrodes based on inorganic compounds other than oxides or hydroxides, e.g. sulfides, selenides, tellurides, halogenides or LiCoFy · CPC title

• H01M4/625

  Carbon or graphite · CPC title

• Y02E60/122

  Cross-Sectional Technologies · mapped topic