Alkaline membrane fuel cells and apparatus and methods for supplying water thereto
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United States of America Patent
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May 17, 2011
Grant Date -
Jan 28, 2010
app pub date -
Jun 3, 2009
filing date -
Jun 4, 2008
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Abstract
A device to produce electricity by a chemical reaction without the addition of liquid electrolyte comprises an anode electrode, a polymer membrane electrolyte fabricated to conduct hydroxyl (OH—) ions, the membrane being in physical contact with the anode electrode on a first side of the membrane, and a cathode electrode in physical contact with a second side of the membrane. The anode electrode and cathode electrode contain catalysts, and the catalysts are constructed substantially entirely from non-precious metal catalysts. Water may be transferred to the cathode side of the membrane from an external source of water.
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