BI CONTAINING SOLID OXIDE FUEL CELL SYSTEM WITH IMPROVED PERFORMANCE AND REDUCED MANUFACTURING COSTS

摘要

A method to provide a tubular, triangular or other type solid oxide electrolyte fuel cell (10, 30) has steps including providing a porous air electrode (14, 40, 40') cathode support substrate, applying a solid electrolyte (16, 42) and cell to cell interconnection (22, 40') on the air electrode, applying a layer of bismuth compounds (44) on the surface of the electrolyte and possibly also the interconnection, and sintering the whole above the melting point of the bismuth compounds for the bismuth compounds to permeate and for densification.