University of Delaware


Scientific Research Thrusts and Enabling Technologies


Fuel Cells


Schematic for a large-scale DCFC system based on molten Sb anodes.

CCEI's technology is based on electrolytes that are ceramic oxygen-ion conductors, such as cubic zirconia. It uses molten antimony (Sb) as the fuel electrode. Inside the fuel cell, Sb is oxidized at the electrolyte interface to Sb2O3, producing electrical power. The Sb2O3 is in turn reduced by carbon-based fuels to regenerate the Sb, allowing the cycle to start again.