A Process for Fabrication of a Fully Dense Electrolyte layer embedded in membrane electrolyte assembly of solid oxide fuel cell

摘要

This invention describes the process for fabrication of a fully dense electrolyte layer (8YSZ/GDC/LSGM) embedded in a high performance membrane electrolyte assembly (MEA) (Unit Cell) of Solid Oxide Fuel Cell. An air-tight electrolyte layer (8YSZ/GDC/LSGM) is mainly prepared via tape casting technique and modified by thin film technologies, such as sputtering coating, spin coating, plasma spray/Coating etc., as well as combined with the sintering scheme and operation control. The gas permeability of electrolyte layer is less than 1×10 -6 L/cm 2 /sec.