New Materials for Fluoro Sulfonic Acid Electrolyte Fuel Cells.
Semi-annual rept. 7 Oct 74-7 Mar 75,
ENERGY RESEARCH CORP DANBURY CONN
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Trifluoromethane sulfonic acid monohydrate TFMSA-H2O, was evaluated as an electrolyte for matrix type fuel cells using conventional Teflon bonded platinum black electrodes. Pressure compensation was used to overcome the unique wetting characteristics of the acid. Limited test data was obtained at 200F that showed the TFMSA-H2O was superior to phosphoric acid at low current densities. Difficulties were encountered in preventing cross gas leakage during cell test caused both by matrix degradation and vaporization of free acid.
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