# US 2010/0167147 A1 · Reversible fuel cell

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- Number: US 2010/0167147 A1
- Document ID: US20100167147A1
- Status: Published application
- Kind: A1
- Application number: 12/160,838
- Filed: 2007-02-07
- Published: 2010-07-01
- Earliest claimed: 2006-02-07
- Assignees: University Court of the University of St Andrews
- Inventors: John Thomas Sirr Irvine; Julie Margaret Nairn; Paul Alexander Conner; James Rennie; Alan Feighery; Frances Gwyneth Elaine Jones; Kelcey Lynn Eccleston; Pierrot Sassou Attidekou
- Web page: https://patentgrep.com/patent/US20100167147A1

## CPC

- H01M 8/1253: the electrolyte containing zirconium oxide
- H01M 8/004: {Cylindrical, tubular or wound}
- H01M 8/1233: with one of the reactants being liquid, solid or liquid-charged
- H01M 8/184: {Regeneration by electrochemical means}
- H01M 8/22: Fuel cells in which the fuel is based on materials comprising carbon or oxygen or hydrogen and other elements; Fuel cells in which the fuel is based on materials comprising only elements other than carbon, oxygen or hydrogen
- H01M 8/243: Grouping of unit cells of tubular or cylindrical configuration
- H01M 8/124: characterised by the process of manufacturing or by the material of the electrolyte
- H01M 2008/1293: {Fuel cells with solid oxide electrolytes}
- H01M 2250/405: Cogeneration of heat or hot water
- Y02B 90/10: Applications of fuel cells in buildings
- Y02E 60/50: Fuel cells
- Y02P 70/50: Manufacturing or production processes characterised by the final manufactured product
- H01M: PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- Y02B: CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02E: REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02P: CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS

## Abstract

An electricity storage system comprising a reversible fuel cell having a first electrode and a second electrode separated by an ionically conducting electrolyte, and at least two chambers adapted to hold fuel and/or a reaction product, wherein the system is substantially closed and at least one reactant for discharge is hydrogen or oxygen.

## Claims

### Claim 1

An electricity storage system comprising a reversible fuel cell having a first electrode and a second electrode separated by an ionically conducting electrolyte, and at least two chambers adapted to hold fuel and/or a reaction product, wherein the system is substantially closed and at least one reactant for discharge is hydrogen or oxygen.

### Claim 2 (depends on 1)

A system as claimed in claim 1, wherein each chamber is in passive communication with the fuel cell.

### Claim 3 (depends on 1)

A system as claimed in claim 1, wherein the fuel and reaction product within each chamber is in fluid communication with the fuel cell.

### Claim 4 (depends on 1)

A system as claimed in claim 1, wherein the cell is a solid oxide fuel cell.

### Claim 5 (depends on 1)

A system as claimed in claim 1, wherein the cell is tubular.

### Claim 6 (depends on 1)

A system as claimed in claim 1, wherein the electrolyte is yttrium stabilized zirconia.

### Claim 7 (depends on 1)

A system as claimed in claim 1, wherein the cell is produced using a tape casting method.

### Claim 8 (depends on 1)

A system as claimed in claim 1 having a cooling system for removing heat from the system.

### Claim 9 (depends on 1)

An electricity storage system as claimed in claim 1, wherein one of the chambers is mounted within the other chamber.

### Claim 10 (depends on 1)

An electricity storage system as claimed in claim 1, wherein at least one of the chambers is remote from the cell.

### Claim 11 (depends on 1)

An electricity storage system as claimed in claim 1 wherein one fuel is a molten or solid oxygen source.

### Claim 12 (depends on 11)

An electricity storage system as claimed in claim 11 wherein the molten or solid oxygen source contains an oxide of Zinc, Lead, Tin or Antimony.

### Claim 13 (depends on 1)

A combined heat and power storage system having the system claimed in claim 1.

### Claim 14 (depends on 1)

An electricity grid having at least one electricity storage system as claimed in claim 1, control means and at least one electricity generation means.

### Claim 15 (depends on 14)

An electricity grid supply system as claimed in claim 14, wherein the control means control supply of at least part of the electricity generated by the electricity generation means to the electricity storage system(s) or draw electricity from the electricity storage system(s).