ELECTROLYTE FORMATION FOR A SOLID OXIDE FUEL CELL DEVICE

摘要

A method of fabricating a SSZ/SDC bi-layer electrolyte solid oxide fuel cell, comprising the steps of: fabricating an NiO-YSZ anode substrate from a mixed NiO and yttria-stabilized zirconia by tape casting; sequentially depositing a NiO-SSZ buffer layer, a thin SSZ electrolyte layer and a SDC electrolyte on the NiO-YSZ anode substrate by a particle suspension coating or spraying process, wherein the layers are co-fired at high temperature to densify the electrolyte layers to at least about 96% of their theoretical densities; and painting/spraying a SSC-SDC slurry on the SDC electrolyte to form a porous SSC-SDC cathode. A SSZ/SDC bi-layer electrolyte cell device and a method of using such device are also discussed.

主权项

1. A method of fabricating a SSZ/SDC bi-layer electrolyte cell, comprising the steps of:
a) fabricating a NiO-YSZ anode substrate from a mixed NiO and yttria-stabilized zirconia by tape casting; b) sequentially depositing a NiO-SSZ buffer layer, a thin SSZ electrolyte layer and a SDC electrolyte on the NiO-YSZ substrate by a particle suspension coating process to form an active layer, wherein the layers are co-fired at high temperature to densify the electrolyte layers to at least about 96% of their theoretical densities; and c) painting a SSC-SDC slurry on the SDC electrolyte layer to form a porous SSC-SDC cathode.