Enhanced membrane-electrode interface
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United States of America Patent
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Nov 30, 1993
Grant Date -
N/A
app pub date -
May 12, 1992
filing date -
May 12, 1992
priority date (Note) -
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Abstract
A membrane-electrode assembly for use in thermoelectrochemical systems. The electrode assembly includes a radiation grafted cation exchange membrane which is plasma etched to provide an etched anode surface and etched cathode surface. A catalytic cathode layer is thermally bonded to the etched cathode surface and a catalytic anode layer is thermally bonded to the etched anode membrane surface. The resulting membrane-electrode assembly is resistant to delamination and provides electrochemical performance which is equal to or better than that obtained with more expensive conventional electrodialysis membranes.
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