Low temperature sintered electrolyte composite for solid oxide fuel cell and solid oxide fuel cell using the same

摘要

An electrolyte composite for a reaction preventive membrane of a solid oxide fuel cell according to the present invention comprises: a ceria-based electrolyte; and a bismuth (Bi) oxide-based electrolyte which is a sintering additive. The bismuth (Bi) oxide-based electrolyte is 0.5 to 4.5 parts by weight based on 100 parts by weight of the ceria-based electrolyte. According to the present invention, an electrolyte composite for a reaction preventive membrane of a solid oxide fuel cell having enhanced sintering shrinkage ratio and ion conductivity can be provided.