Solid-state battery

• US 10,446,873 B2
• Filed: 12/30/2016
• Issued: 10/15/2019
• Est. Priority Date: 12/30/2016
• Status: Active Grant

• Current Assignee: Intel Corporation
• Original Assignee: Intel Corporation
• Inventors: Matsumura, Naoki, Keates, Andrew
• Primary Examiner(s): Fraser, Stewart A
• Application Number:
  US15/395,400
• Publication Number:
  US 20180191025A1
• Time in Patent Office: 1,019 Days
• CPC Class Codes: H01M 10/052 Li-accumulators
• CPC Class Codes: H01M 10/054 Accumulators with insertion or intercalation of metals other than lithium, e.g. with magnesium or aluminium
• CPC Class Codes: H01M 10/0562 Solid materials
• CPC Class Codes: H01M 10/0565 Polymeric materials, e.g. gel-type or solid-type
• CPC Class Codes: H01M 4/13 Electrodes for accumulators with non-aqueous electrolyte, e.g. for lithium-accumulators; Processes of manufacture thereof
• CPC Class Codes: H01M 4/364 as mixtures
• CPC Class Codes: H01M 4/382 Lithium H01M4/405 takes precedence
• CPC Class Codes: Y02E 60/10 Energy storage using batteries
• CPC Class Codes: Y02P 70/50 Manufacturing or production processes characterised by the final manufactured product

Abstract

In one example, a battery includes a cathode, an anode, and a layer between the cathode and the anode. The cathode includes a solid-state electrolyte. The layer between the cathode and the anode is a solid-state electrolyte layer.

Claims

1. A battery comprising:

a cathode including a solid-state electrolyte;

an anode; and

a solid-state electrolyte layer between the cathode and the anode, wherein a thickness of the solid-state electrolyte layer is 1 μ

m or less;

wherein an ionic conductivity of the solid-state electrolyte included in the cathode is higher than an ionic conductivity of the solid-state electrolyte layer; and

wherein the solid-state electrolyte included in the cathode is a different type of solid-state electrolyte than the solid-state electrolyte included in the solid-state electrolyte layer.

2. The battery of claim 1, wherein the solid-state electrolyte included in the cathode is a polymer solid-state electrolyte.

3. The battery of claim 2, wherein the polymer solid-state electrolyte is polyethylene oxide.

4. The battery of claim 1, wherein the solid-state electrolyte included in the cathode is a sulfide solid-state electrolyte.

5. The battery of claim 4, wherein the sulfide solid-state electrolyte is Li₁₀GeP₂S₁₂.

6. The battery of claim 1, wherein the solid-state electrolyte layer is a ceramic solid-state electrolyte layer.

7. The battery of claim 6, wherein the ceramic solid-state electrolyte layer is lithium phosphate oxynitride.

8. The battery of claim 1, wherein the anode includes a solid-state electrolyte.

9. The battery of claim 1, wherein the battery is one or more of a lithium ion battery, a lithium sulfur battery, a magnesium ion battery, or an aluminum ion battery.

10. The battery of claim 1, wherein the solid-state electrolyte included in the cathode is a polymer solid-state electrolyte and the solid-state electrolyte layer is a ceramic solid-state electrolyte layer.

11. The battery of claim 1, wherein the solid-state electrolyte included in the cathode is a sulfide solid-state electrolyte and the solid-state electrolyte layer is a ceramic solid-state electrolyte layer.

12. The battery of claim 1, wherein the solid-state electrolyte included in the cathode is a particle sulfide solid-state electrolyte and the solid-state electrolyte layer is a thin-film sulfide solid-state electrolyte layer.

13. The battery of claim 1, wherein the anode is lithium metal.

14. The battery of claim 1, wherein the ionic conductivity of the solid-state electrolyte included in the cathode is in a range of 10⁻

2 siemens per centimeter to 10<sup>−

3</sup> siemens per centimeter.

15. The battery of claim 1, wherein a thickness of the battery is approximately 100 μ

m.

16. The battery of claim 1, wherein the solid-state electrolyte included in the cathode is a polymer or a sulfide, and the solid-state electrolyte layer is a ceramic solid-state electrolyte layer.

17. The battery of claim 1, wherein the ionic conductivity of the solid-state electrolyte included in the cathode is in a range of approximately 10⁻

2 siemens per centimeter to 10<sup>−

3</sup> siemens per centimeter, and wherein the ionic conductivity of the solid-state electrolyte is on the order of approximately 10<sup>−

6</sup> siemens per centimeter.

18. A method of manufacturing a battery comprising:

forming a cathode including a solid-state electrolyte;

forming an anode; and

forming a solid-state electrolyte layer between the cathode and the anode,

wherein a thickness of the solid-state electrolyte layer is 1 μ

m or less;

wherein an ionic conductivity of the solid-state electrolyte included in the cathode is higher than an ionic conductivity of the solid-state electrolyte layer; and

wherein the solid-state electrolyte included in the cathode is a different type of solid-state electrolyte than the solid-state electrolyte included in the solid-state electrolyte layer.

19. The method of claim 18, wherein the solid-state electrolyte included in the cathode is a polymer solid-state electrolyte.

20. The method of claim 18, wherein the solid-state electrolyte included in the cathode is a sulfide solid-state electrolyte.

21. The method of claim 18, wherein the solid-state electrolyte layer is a ceramic solid-state electrolyte layer.

22. The method of claim 18, wherein the anode includes a solid-state electrolyte.

23. The method of claim 18, wherein the battery is one or more of a lithium ion battery, a lithium sulfur battery, a magnesium ion battery, or an aluminum ion battery.

24. The method of claim 18, wherein the anode is lithium metal.

25. The method of claim 18, wherein the ionic conductivity of the solid-state electrolyte included in the cathode is in a range of 10⁻

2 siemens per centimeter to 10<sup>−

3</sup> siemens per centimeter.

26. The method of claim 18, wherein the battery is fabricated using physical vapor deposition.

27. The method of claim 18, wherein the solid-state electrolyte included in the cathode is a polymer or a sulfide, and the solid-state electrolyte layer is a ceramic solid-state electrolyte layer.

28. The method of claim 18, wherein the ionic conductivity of the solid-state electrolyte included in the cathode is in a range of approximately 10⁻

2 siemens per centimeter to 10<sup>−

3</sup> siemens per centimeter, and wherein the ionic conductivity of the solid-state electrolyte is on the order of approximately 10<sup>−

6</sup> siemens per centimeter.