Highly durable anode supported solid oxide fuel cell with an infiltrated cathode

► Electrochemically stable anode supported cell (ASC) with an LSC infiltrated-CGO cathode. ► No measurable degradation during 1500 h long operation at 700 °C and 0.5 A cm−2. ► No change in impedance spectra recorded in situ. ► Post test characterization revealed no change in microstructure of the LSC infiltrate. ► ASC power density reached 0.79 W cm−2 at 750 °C at a cell voltage of 0.6 V.