A highly conductive electrolyte for molten oxide fuel cells
Abstract
A gas-tight and ductile solid/liquid δ-Bi2O3–0.2 wt% B2O3 electrolyte for molten oxide fuel cells (MOFCs) is developed. The MOFCs are a new class of intermediate temperature fuel cells. The composite, consisting of solid (δ-Bi2O3) and liquid (molten Bi2O3 + B2O3) oxygen ion-conducting phases, demonstrates the promising application as an MOFC electrolyte with the highest oxygen ionic conductivity.