Numerical analysis and optimization of the mass transport and generation phenomena for single cell-scale solid oxide fule cells

摘要

This work provides a numerical analysis method for on a scale of several tens to a hundred micrometers Solid Oxide Fuel Cells phenomena. The analysis depends on the assumption that the effective electrode reaction area is restricted to the three-phase boundary where mass fluxes and electric current are concentrated and cause polarization. Concentration profiles were obtained analytically and used for calculating polarization and voltage-current curves. Optimum calculations for cathode structure showed that the composite particle diameter electrode gives better SOFC performance.