Research Progress of the Sealing Glass for Intermediate Temperature Solid Oxide Fuel Cell

Sealing glass plays a crucial role in the intermediate temperature solid oxide fuel cell (IT-SOFC). A sealing glass should have a combination of desired thermal, chemical and mechanical properties and good adhesive ability with other cell's components in order to prevent gas leakage during the working of the IT-SOFC. It has to be a long-term thermal stability and interface chemical stability with other cell's components at the operating temperatures with an oxidizing or reducing atmospheres, respectively. In this paper, the research progress of the sealing glass in recent ten years was reviewed. From the point of the properties of sealing glass and the interfacial reactions with other cell's components, relations of the composition-structure-property were discussed. Main problems on current research of sealing glass of IT-SOFC were put forward.