SEALING COMPOSITE FOR FLAT SOLID OXIDE FUEL CELL STACK AND FUEL CELL STACK USING THE SAME

摘要

The present invention relates to an intermediate temperature sealing composite for a flat solid oxide fuel cell stack. A fuel cell using the sealing composite of the present invention has excellent pressure resistance and gas sealing performance when operating at an intermediate temperature from 700 to 850°C of the operating temperature and has less deterioration based on the thermal properties due to low crystallization. In addition, the present invention provides high thermal cycle sealing stability as deterioration of the gas leakage rate does not occur, and excellent stability as the interfacial reaction with a metal interconnector is inhibited. The sealing composite of the present invention enables a flat solid oxide having long-term stability to be supplied and commercialized.