COMPARISON OF POWER DENSITIES AND CHEMICAL-POTENTIAL VARIATION IN SOFC'S WITH MULTI-LAYER AND SINGLE-LAYER OXIDE ELECTROLYTES

摘要

Electrochemical transport in several multi-layer and single-layer mixed-conducting-oxide structures has been described by presenting a detailed calculation of the power density characteristics and the variation of the oxygen-chemical-potential gradient as a function of the external load and thickness of the oxide layers. Engineering implications of the analysis in terms of designing efficient as well as mechanically and chemically stable fuel cells with a layered electrolyte structure are also provided.