Apparatus and method of providing an apparatus for use as a power source

Patent metadata

Field	Value
Publication number	US-10840505-B2
Application number	US-201615759462-A
Country	US
Kind code	B2
Filing date	Sep 12, 2016
Priority date	Sep 18, 2015
Publication date	Nov 17, 2020
Grant date	Nov 17, 2020

Abstract

An apparatus and method of providing an apparatus, the apparatus comprising: an electrode comprising metal; an anode comprising a composite of halide salt and conductive carbon based material wherein the anode is deposited on the electrode; a cathode comprising metal; and a solid electrolyte provided between the cathode and the anode.

First claim

We claim:

1. An apparatus comprising:
an electrode comprising a first metal;
an anode comprising a composite of halide salt and conductive carbon based material wherein the anode is deposited on the electrode;
a cathode comprising a second metal; and
a solid electrolyte provided between the cathode and the anode, the solid electrolyte comprising a composite of an insulating material and a polymeric material.

2. An apparatus as claimed in claim 1 wherein the conductive carbon based material comprises graphene.

3. An apparatus as claimed in claim 1 wherein the conductive carbon based material comprises reduced graphene oxide.

4. An apparatus as claimed in claim 1 wherein the conductive carbon based material is formed from an ink comprising reduced graphene oxide in solution.

5. An apparatus as claimed in claim 1 wherein the anode is arranged to react with the first metal from the electrode to form metal halide and release metal cations.

6. An apparatus as claimed in claim 5 wherein transport of the released metal cations from the electrode to the cathode provides a power source.

7. An apparatus as claimed in claim 1 wherein one or both of the first metal and the second metal comprises a thin metal foil layer.

8. An apparatus as claimed in claim 1 wherein the second metal of the cathode is the same as the first metal of the electrode.

9. An apparatus as claimed in claim 1 wherein one or both of the first metal and the second metal comprises silver.

10. An apparatus as claimed in claim 1 wherein the solid electrolyte is arranged to absorb ambient water to enable transport of cations across the solid electrolyte.

11. An apparatus as claimed in claim 1 wherein the insulating material of the solid electrolyte comprises graphene oxide.

12. An apparatus as claimed in claim 1 wherein the polymeric material of the solid electrolyte comprises a tetrafluorethylene polymer.

13. An apparatus as claimed in claim 1 wherein the composite comprises 35-45% carbon, 2-10% oxygen, and 20-30% lithium.

14. A method comprising:
providing an electrode comprising a first metal;
providing an anode comprising a composite of halide salt and conductive carbon based material wherein the anode is deposited on the electrode;
providing a cathode comprising a second metal; and
providing a solid electrolyte between the cathode and the anode, the solid electrolyte comprising a composite of an insulating material and a polymeric material.

15. A method as claimed in claim 14 wherein the conductive carbon based material comprises reduced graphene oxide.

16. A method as claimed in claim 14 wherein one or both of the first metal and the second metal comprises silver.

17. A method as claimed in claim 14 wherein the solid electrolyte is arranged to absorb ambient water to enable transport of cations across the solid electrolyte.

18. A method as claimed in claim 14 wherein the insulating material of the solid electrolyte comprises graphene oxide.

19. A method as claimed in claim 14 wherein the polymeric material of the solid electrolyte comprises a tetrafluorethylene polymer.

20. A method as claimed in claim 14 wherein the composite comprises 35-45% carbon, 2-10% oxygen, and 20-30% lithium.

Assignees

• Nokia Technologies Oy

Inventors

• Zarra Salvatore
• Wei Di

Classifications

• H01M6/32

  activated through external addition of electrolyte or of electrolyte components · CPC title

• H01M6/26

  Cells without oxidising active material, e.g. Volta cells · CPC title

• H01M4/38 Primary

  of elements or alloys · CPC title

• H01M2300/0082

  Organic polymers · CPC title

• H01M6/181

  with polymeric electrolytes · CPC title