H - Electricity – 01 – M
Patent
H - Electricity
01
M
319/15
H01M 4/88 (2006.01)
Patent
CA 1071302
METHOD OF FABRICATING A FUEL CELL ELECTRODE ABSTRACT OF THE DISCLOSURE A method of fabricating a fuel cell electrode comprising an electrocatalyst and binder wherein the colloidal chemistry of the aqueous catalyst and the binder suspension are con- trolled during the deposition of the catalyst/binder onto an electrode substrate. Control is by addition of acids, bases, or salts to an aqueous suspension of binder and catalyst to adjust the pH to within certain ranges to form a flocculate. The flocculate is then fabricated into an electrode. The catalyst/binder distribution within the electrode and electrochemical performance, including decay characteristics, of the electrode are improved.
275718
Breault Richard D.
Harding Richard P.
Kemp Fred S.
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