EVALUATION OF PHOSPHORIC ACID MATRIX FUEL CELLS
Abstract
An evaluation of air breathing phosphoric acid matrix fuel cell units was carried out. Cells were life tested with synthetic steam reformate at about 150C. Initially, 70 watts/sq ft. was obtained at .75 volts and 90 watts/sq ft. at .70 volts using a platinum loading on anode and cathode combined of 12.5 mg/ sq cm. At a temperature of 150C and a current density of 100 mA/sq cm cells decay at the rate of 2.5 mV/100 hours. Degradation is substantially lower at 125C. Neither air humidity nor air flow rates materially influence degradation rates provided the minimum requirements for water removal are satisfied. At the highest humidity level to be expected in practice, the flow requirement for maintaining water balance is 550 ml/Amp/min.
Document Details
- Document Type
- Technical Report
- Publication Date
- Aug 01, 1968
- Accession Number
- AD0841605
Entities
People
- O. J. Adlhart
- V. V. Tanna