Fuel cells
AssigneeAfc Energy PLC
InventorsRichard Dawson, Hugh Liam Sutherland, Gene Stacey Lewis, Christopher Reynolds
Life of this patent
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Abstract
A liquid electrolyte fuel cell comprises means to define an electrolyte chamber (208), and two electrodes (10), one on either side of the electrolyte chamber (208), each electrode comprising:—a sheet (11) of metal through which are defined a multiplicity of through-holes (14), and—a gas-permeable layer (16) of fibrous and/or particulate electrically-conductive material which is bonded to and in electrical contact with the sheet of metal (11), and which comprises catalytic material (18). The electrode (10) may be arranged such that the gas-permeable layer (16) faces the electrolyte chamber (208).
Claims13
A liquid electrolyte fuel cell with means to define an electrolyte chamber, and comprising two electrodes, one electrode on either side of the electrolyte chamber, each electrode comprising:
- a sheet of metal through which are defined a multiplicity of through-holes, and
- a fluid-permeable coherent layer of fibrous and particulate electrically-conductive material comprising carbon and a hydrophobic polymer binder, the layer defining a first surface and a second surface at opposite faces of the layer, the first surface of the layer being bonded to the sheet of metal, in electrical contact with the sheet of metal, and
- with a coating that comprises catalytic material on the second surface of the fluid-permeable layer, the coating being at least partly hydrophilic.
An electrode comprising:
- a sheet of metal through which are defined a multiplicity of through-holes, and
- a fluid-permeable coherent layer of fibrous and particulate electrically-conductive material comprising carbon and a hydrophobic polymer binder, the layer defining a first surface and a second surface at opposite faces of the layer, the first surface of the layer being bonded to the sheet of metal, in electrical contact with the sheet of metal, and
- with a coating that comprises catalytic material on the second surface of the fluid-permeable layer, the coating being at least partly hydrophilic.
Dependencies are inferred from the claim text.