Fuel cell manager
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United States of America Patent
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Apr 1, 2003
Grant Date -
May 9, 2002
app pub date -
Dec 5, 2001
filing date -
Jul 5, 1996
priority date (Note) -
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Abstract
A controller controls a switch bank which can shunt a voltage source in parallel with one or more fuel cells in a stack. By controlling the voltage of the voltage source, the current through the fuel cells is directly controlled. By increasing the anode potential of the fuel cell through control of the voltage source, poisons deposited on the electrocatalyst are removed, thereby rejuvenating the fuel cells. Fuel cells in a stack can be treated in turn, causing a reduction of the effects of electrocatalyst poison on stack performance.
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