Improved Fabrication of Electrodes for Methanol Fuel Cells

A method of fabricating membrane electrode structures for methanol fuel cells involves, among other things, the use of improved sprayers to deposit inks containing catalytic metals on membranes of Nafion™ (or equivalent) perfluorosulfonic acid-based hydrophilic, proton-conducting ion-exchange polymer. In comparison with older methods, the present method provides for faster production with more efficient utilization of the expensive catalytic metals. The present method is thus better suited to mass production.