Fuel efficient membrane electrode assembly
AssigneeMTI MicroFuel Cells Inc.
InventorsRobert S. Hirsch, Juan J. Becerra
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Abstract
The present invention provides a fuel efficient membrane electrode assembly that substantially resists methanol from “crossing over” by sealing the anode diffusion layer and catalyst layer, and by preventing fluids from passing across at least a portion of the membrane electrolyte. The efficiency of the fuel cell is maintained because essentially all of the fuel is reacted on the catalyst layers creating electricity, which is transferred to the fuel cell load. The temperature of the fuel cell is also maintained as the uncatalyzed reaction that produces heat is prevented.
Claims9
A method of rendering a portion of a protonically-conductive membrane substantially liquid-impermeable including the step of rendering a portion of said protonically-conductive membrane, substantially liquid-impermeable by heat treatment.
Dependencies are inferred from the claim text.