Method of operating a fuel cell system
AssigneePlug Power Inc.
InventorsChockkalingam Karrupaiah, James McElroy
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Abstract
Methods of operating a fuel cell system are disclosed. The methods can include flowing an anode gas through a fuel cell without flowing a cathode gas through the fuel cell while placing a voltage across the fuel cell.
Claims31
A method of operating a fuel cell having an anode flow field plate and a cathode flow field plate, the method comprising:
- placing a voltage across the fuel cell while flowing an anode gas through the anode flow field plate without flowing a cathode gas through the cathode flow field plate.
A method of operating a fuel cell stack including at least one fuel cell, the fuel cell stack having an anode gas manifold and a cathode gas manifold, the method comprising:
- placing a voltage across the at least one fuel cell in the fuel cell stack while flowing an anode gas through the anode gas manifold without flowing a cathode gas through the cathode gas manifold.
A method of operating a fuel cell stack including at least one fuel cell, the fuel cell stack having an anode gas manifold and a cathode gas manifold, the method comprising:
- flowing an anode gas through the anode gas manifold while flowing a cathode gas through the cathode gas manifold;
- stopping the flow of cathode gas through the cathode gas manifold while continuing to flow the anode gas through the anode gas manifold;
- and
- placing a voltage across the at least one fuel cell in the fuel cell stack while the cathode gas flow through the cathode gas manifold is stopped.
Dependencies are inferred from the claim text.