Method and apparatus for operating an electrochemical fuel cell

Chemistry: electrical current producing apparatus – product – and – Having magnetic field feature

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429 22, 429 23, H01M 804

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active

060964480

ABSTRACT:
A method and apparatus is provided for operating an electrochemical fuel cell with periodic momentary fuel starvation at the anode. It is believed that such momentary periodic fuel starvation conditions cause the anode potential to increase, resulting in the oxidation and removal of electrocatalyst poisons from the anode electrocatalyst and improved fuel cell performance. In a preferred method, while successive localized portions of the fuel cell anode are momentarily periodically fuel starved, the remainder of the fuel cell anode remains electrochemically active and saturated with fuel such that the fuel cell is continually available to generate power.

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