Patent
Fuel cell gas distribution
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TLDR
In this paper, a membrane-electrode assembly with an anode electrode face and a sealed anode plate is coupled by a sealing gasket, and a sheet of porous diffuser material is placed in the fluid containment volume.Abstract:
A fuel cell comprising a membrane-electrode assembly having an anode electrode face; an anode plate adjacent said membrane-electrode assembly electrode face and coupled thereto by a sealing gasket. The sealing gasket, electrode face and anode plate together define a fluid containment volume for delivery of anode fluid to the electrode face. A sheet of porous diffuser material is situated in the fluid containment volume and having at least one plenum defined between at least one lateral edge of the sheet of diffuser material and the sealing gasket. Fluid for delivery to an active surface of the membrane-electrode assembly may be delivered by the plenum and by diffusion through the diffuser material to such an extent that fluid flow channels in the anode plate are not required.read more
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Fuel cell oxygen removal and pre−conditioning system
TL;DR: In this paper, a fuel cell having an anode, a cathode and an ion exchange membrane is supplied by hydrogen fuel through a fuel delivery conduit, and a recirculation loop is provided to recycle gases in the fuel delivery manifold to a mixing point where a controlled flow rate of fuel is supplied and mixed therewith.
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Water management in fuel cells
Matcham Jeremy Stephen,Nathan Grange,Benson Paul Alan,Scott Baird,Ashley Kells,Jonathan Cole,Paul Leonard Adcock,Hood Peter David,Simon Edward Foster +8 more
TL;DR: In this paper, an electrochemical fuel cell having an anode, an ion transfer membrane and a cathode has liquid water delivered to the fluid flow channels within the cathode so as to maintain a relative humidity of 100 % throughout the fluidflow channels.
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Variable compressibility gaskets
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Multi-layer fuel cell diffuser
TL;DR: In this paper, a diffusion structure between a membrane-electrode assembly (MEA) and a respective one of the fluid flow field plates and has a first face in contact with or adjacent to the MEA, and a second face was disposed between a MEA and an anode face.
References
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Patent
Polymer electrolyte fuel cell
TL;DR: A polymer electrolyte fuel cell as discussed by the authors includes a housing provided with an anode-side supply inlet for supplying a material for fuel, an anodes and a cathode accommodated in the housing to sandwich a polyethylene membrane, and a layer containing a biochemical catalyst which decomposes the material for the fuel to generate fuel.
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Lightweight fuel cell membrane electrode assembly with integral reactant flow passages
TL;DR: In this paper, an electrochemical fuel cell is provided for converting a fuel reactant stream and an oxidant reactionant stream to a reaction product stream and electrical energy, and an ion exchange membrane is interposed between the first and second electrode layers.
Patent
Plastic platelet fuel cells employing integrated fluid management
TL;DR: Improved fuel cell stacks as discussed by the authors are constructed from a plurality of cells, each comprising a series of interrelated mono and bipolar collector plates (BSPs), which in turn are built up by lamination of a core of related nonconductive plastic or ceramic platelets sandwiched between conductive microscreen platelets of metal or conductive ceramic or plastic with an electrode membrane (EMA) between adjacent BSPs.
Patent
Fuel cells employing integrated fluid management platelet technology
TL;DR: The platelet manufacturing process is continuous and fast as mentioned in this paper using CAD based platelet design and photolithography, rapid change in feature design can accommodate a wide range of thermal management and humidification techniques.
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Metal platelet fuel cells production and operation methods
TL;DR: In this article, the authors proposed a platelet manufacturing process for fuel cell stacks comprising stacked separator/membrane electrode assembly cells in which the separators comprise a series of stacked thin sheet platelets having individually configured serpentine micro-channel reactant gas humidification, active area and cooling fields therein.