Elaboration of intermediate size planar proton conducting solid oxide cell by wet chemical routes: A way to industrialization

Despite significant progress in terms of electrical performances and reliability, Protonic Ceramic Cell (PCC) technology faces too many technical hurdles concerning the validation of suitable processes for making large sized cells. Thus, the wet chemical techniques have been evaluated to the preparation of complete protonic ceramic cells from laboratory to industrial scales. According to results, the combination of tape-casting/screen-printing techniques is suitable for the elaboration of larger size planar hydrogen electrode supported PCC up to 50 cm2. Using BSCF-based air electrodes, electrochemical performances of a 20 cm2-size BaCeZrY-PCC based cell have been reached to 0.15 W/cm2 at 600 °C and stable during few tens of hours without electrical degradation.