# US 2018/0254479 A1 · An apparatus and method of providing an apparatus for use as a power source

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- Number: US 2018/0254479 A1
- Document ID: US20180254479A1
- Status: Published application
- Kind: A1
- Application number: 15/759,462
- Filed: 2016-09-12
- Published: 2018-09-06
- Earliest claimed: 2015-09-18
- Assignees: Nokia Technologies Oy
- Applicants: Nokia Technologies Oy
- Inventors: Salvatore ZARRA; Di WEI
- Web page: https://patentgrep.com/patent/US20180254479A1

## CPC

- H01M 4/38: of elements or alloys
- H01M 4/625: {Carbon or graphite}
- H01M 6/181: {with polymeric electrolytes}
- H01M 6/26: Cells without oxidising active material, e.g. Volta cells
- H01M 10/32: Silver accumulators (H01M10/34 takes precedence)
- H01M 6/32: activated through external addition of electrolyte or of electrolyte components
- H01M 2300/0082: Organic polymers
- Y02E 60/10: Energy storage using batteries
- H01M: PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- Y02E: REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION

## 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.

## Claims

### Claim at position 1

1-15. (canceled)

### Claim 16

An 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.

### Claim 17 (depends on 16)

An apparatus as claimed in claim 16 wherein the conductive carbon based material comprises graphene.

### Claim 18 (depends on 16)

An apparatus as claimed in claim 16 wherein the conductive carbon based material comprises reduced graphene oxide.

### Claim 19 (depends on 16)

An apparatus as claimed in claim 16 wherein the conductive carbon based material is formed from an ink comprising reduced graphene oxide in solution.

### Claim 20 (depends on 16)

An apparatus as claimed in claim 16 wherein the anode is arranged to react with the metal from the electrode to form metal halide and release metal cations.

### Claim 21 (depends on 20)

An apparatus as claimed in claim 20 wherein transport of the released metal cations from the electrode to the cathode provides a power source.

### Claim 22 (depends on 16)

An apparatus as claimed in claim 16 wherein the metal comprises a thin metal foil layer.

### Claim 23 (depends on 16)

An apparatus as claimed in claim 16 wherein the cathode comprises the same metal as the electrode.

### Claim 24 (depends on 16)

An apparatus as claimed in claim 16 wherein the metal comprises silver.

### Claim 25 (depends on 16)

An apparatus as claimed in claim 16 wherein the solid electrolyte is arranged to absorb ambient water to enable transport of cations across the solid electrolyte

### Claim 26 (depends on 16)

An apparatus as claimed in claim 16 wherein the solid electrolyte comprises graphene oxide.

### Claim 27 (depends on 16)

An apparatus as claimed in claim 16 wherein the solid electrolyte comprises Nafion.

### Claim 28 (depends on 16)

An apparatus as claimed in claim 16 wherein the composite comprises
35-45% carbon atoms, 2-10% oxygen atoms, and 20-30% lithium atoms.

### Claim 29

A method comprising:
providing an electrode comprising 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 metal; and
providing a solid electrolyte between the cathode and the anode.

### Claim 30 (depends on 29)

A method as claimed in claim 29 wherein the conductive carbon based material comprises reduced graphene oxide.

### Claim 31 (depends on 29)

A method as claimed in claim 29 wherein the metal comprises silver.

### Claim 32 (depends on 29)

A method as claimed in claim 29 wherein the solid electrolyte is arranged to absorb ambient water to enable transport of cations across the solid electrolyte

### Claim 33 (depends on 29)

A method as claimed in claim 29 wherein the solid electrolyte comprises graphene oxide.

### Claim 34 (depends on 29)

A method as claimed in claim 29 wherein the solid electrolyte comprises Nafion.

### Claim 35 (depends on 29)

A method as claimed in claim 29 wherein the composite comprises