| 摘要 |
This invention relates to a method of operating an electrochemical device. The method includes controlling the mass flow of fuel to the device so that the mass flow varies during the operation of the device. In combination with the mass flow control, the method also includes controlling an electrical parameter of the device so that the electrical parameter varies during the operation of the device. Another embodiment includes a method of operating a fuel cell using a flow of fuel or oxidant that contains a contaminant, and using a controller to control the flow and an electrical parameter of the fuel cell. A further embodiment includes a method of operating an electrochemical device using reactants that include a reactant causing an undesired electrochemical reaction, and using a controller to control the flow of reactants and an electrical parameter of the device.
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