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US 2003/0228504 A1Published application
Method for operating fuel cell system having at least one discontinuously operated fuel cell
AssigneeDaimlerChrysler AG
InventorsGerhard Konrad, Michael Niehues
Life of this patent
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Abstract
In a method for operating a fuel cell system containing at least one discontinuously operated fuel cell the anode of the fuel cell system is supplied with a fuel of nearly pure hydrogen. The nearly pure hydrogen contains only small proportions of carbon monoxide and, possibly, inert components. After shutting down the fuel cell, an oxidizing agent is fed into the region of the anode of the fuel cell, for example, in a manner integrated into a shut-down cycle.
Claims23
A method for operating a fuel cell system including at least one discontinuously operated fuel cell, the method comprising:
- supplying an anode of the at least one fuel cell with a fuel including nearly pure hydrogen;
- and
- supplying an oxidizing agent to the supplied fuel in metered quantities after an end of an electrical power demand from the at least one fuel cell.
Dependencies are inferred from the claim text.