Development of novel glass-based composite seals for planar intermediate temperature solid oxide fuel cells

► Novel glass/ceramic composite seals exhibited excellent gas tight and chemical compatibility. ► The leakage rates of the seals were lower than 0.01 sccm cm-1 within 25 thermal cycles. ► The seals can maintain well interface compatibility and adhesion after test. ► The feasibility of the seals applied on SOFC was confirmed by single cell test.