Mti Microfuel Cells Inc.

George C McNamee

William P Acker

William W Dailey

A direct methanol fuel cell (DMFC) system in which, in response to changes in the output power level of the cell, the concentration of methanol supplied to the anode is actively regulated. As a result, cross-over of methanol through the cell's membrane electrolyte is minimized, and operating efficiency is maintained over a wide dynamic range of output power levels.

Fuel cell system with active methanol concentration control

A direct methanol fuel cell (DMFC) system is provided with a pump for pumping methanol into the cell. The pump is driven by carbon dioxide produced by the electro-chemical reaction at the anode of the fuel cell. Because the amount of CO generated is proportional to the power generated by the cell, and thus the amount of fuel demanded by the cell, the pump is self-regulating. The system may be integrated using microelectro-mechanical system fabrication techniques.

Passively pumped liquid feed fuel cell system

A direct methanol fuel cell (DMFC) system is provided with a pump for pumping methanol into the cell. The pump is driven by carbon dioxide produced by the electrochemical reaction at the anode of the fuel cell. Because the amount of CO generated is proportional to the power generated by the cell, and thus the amount of fuel demanded by the cell, the pump is self-regulating. The system may be integrated using microelectromechanical system fabrication techniques.

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Loudonville, NY, United States of America

George C McNamee