摘要:
Methods, articles, and systems for controlling the internal operating temperature of fuel cell systems, such as planar fuel cell arrays. The heat management system conducts heat away from the fuel cell without disturbing the flow of gases around the fuel cell layer and without the need for the equipment to disturb the flow of gases around the fuel cell layer. The present invention also provides a heat transfer system that has a low thermal mass relative to the fuel cell layer or is thermally isolated from the fuel cell layer such that the heat transfer system will not remove substantial amounts of heat from a fuel cell layer during star-up and can be activated to dissipate heat from the fuel cell only as needed.
摘要:
Methods, articles, and systems for controlling the internal operating temperature of fuel cell systems, such as planar fuel cell arrays. The heat management system conducts heat away from the fuel cell without disturbing the flow of gases around the fuel cell layer and without the need for the equipment to disturb the flow of gases around the fuel cell layer. The present invention also provides a heat transfer system that has a low thermal mass relative to the fuel cell layer or is thermally isolated from the fuel cell layer such that the heat transfer system will not remove substantial amounts of heat from a fuel cell layer during star-up and can be activated to dissipate heat from the fuel cell only as needed.
摘要:
A complete fuel cell system (10) is described. The fuel cell system (10) comprises at least two fuel precursors (16, 18) that react to create hydrogen. A solid fuel precursor (18) can be carried in disposable fuel cartridges (100). A passive pressure control system including a dose pump (22) and a pressure equalization system (24, 300, 504) is provided to dose a liquid fuel precursor (16) to the solid fuel precursor (18) in the fuel cartridge (100). An outer wall (102) of the fuel cartridge can form a part of the passive pressure control system. The solid fuel precursor may include larger metallic particles coated by another fine metallic particles such that multiple micro galvanic cells are formed on the surface of the larger metallic particles. The fuel cell system may also include a gas buffer (40) that stores produced hydrogen that in unneeded by the fuel cell, and a water trapping mechanism (604). The fuel cell system may also have an electronic vent (46) that consumes unneeded hydrogen.
摘要:
A complete fuel cell system (10) is disclosed. The fuel cell system (10) comprises at least two fuel precursors (16, 18) that react to create hydrogen. A solid fuel precursor (18) can be carried in disposable fuel cartridges (100). A passive pressure control system including a dose pump (22) and a pressure equalization system (24, 300, 504) is provided to dose a liquid fuel precursor (16) to the solid fuel precursor (18) in the fuel cartridge (100). The solid fuel precursor (18) may include larger metallic particles coated by another fine metallic particles such that multiple micro galvanic cells are formed on the surface of the larger metallic particles. The fuel cell system (10) may also include a gas buffer (40) that stores produced hydrogen that is unneeded by the fuel cell, a water trapping mechanism (604) and an electronic vent (46) that consumes unneeded hydrogen.
摘要:
A fluidic control system includes featured layers. The featured layers include two or more features which collectively form at least one functional component.
摘要:
A fuel cell layer includes a plurality of membrane electrode assemblies disposed in a planar array arrangement and an interconnector for electrically coupling an anode catalyst layer of one of adjacent membrane electrode assemblies to a cathode catalyst layer of the other of the adjacent membrane electrode assemblies. Each membrane electrode assembly includes an electrolyte membrane, the anode catalyst layer provided on one face of the electrolyte member and the cathode catalyst layer provided on the other face of the electrolyte membrane in such a manner that at least part of which is disposed counter to the anode catalyst layer. The interconnector is formed of at least one of a material constituting the anode catalyst layer and a material constituting the cathode catalyst layer.
摘要:
A fuel cell layer includes a plurality of membrane electrode assemblies disposed in a planar array arrangement and an interconnector for electrically coupling an anode catalyst layer of one of adjacent membrane electrode assemblies to a cathode catalyst layer of the other of the adjacent membrane electrode assemblies. Each membrane electrode assembly includes an electrolyte membrane, the anode catalyst layer provided on one face of the electrolyte member and the cathode catalyst layer provided on the other face of the electrolyte membrane in such a manner that at least part of which is disposed counter to the anode catalyst layer. The interconnector is formed of at least one of a material constituting the anode catalyst layer and a material constituting the cathode catalyst layer.
摘要:
Various embodiments of the present invention provide a fuel cell connection component, including an interconnect or a current collector. The fuel cell connection component includes conductive fibers oriented at an angle of less than about 90° to at least one electrode in the fuel cell. The fuel cell connection component provides an electrically conductive pathway from the at least one electrode of the fuel cell to an external circuit or to an electrode of a different fuel cell. Embodiments of the present invention also provide fuel cells that include the fuel cell connection component, including fuel cell layers, and methods of making the same.
摘要:
Various embodiments of the present invention provide a fuel cell connection component, including an interconnect or a current collector. The fuel cell connection component includes conductive fibers oriented at an angle of less than about 90° to at least one electrode in the fuel cell. The fuel cell connection component provides an electrically conductive pathway from the at least one electrode of the fuel cell to an external circuit or to an electrode of a different fuel cell. Embodiments of the present invention also provide fuel cells that include the fuel cell connection component, including fuel cell layers, and methods of making the same.
摘要:
Embodiments of the present invention relate to a fluid distribution system. The system may include one or more electrochemical cell layers, a bulk distribution manifold having an inlet, a cell layer feeding manifold in direct fluidic contact with the electrochemical cell layer and a separation layer that separates the bulk distribution manifold from the cell feeding manifold, providing at least two independent paths for fluid to flow from the bulk distribution manifold to the cell feeding manifold.