Planar SOFC fabricated by aqueous reverse sequential tape‐casting of the anode, electrolyte and barrier layer

A low-cost manufacturing procedure has been developed for the fabrication of planar anode-supported solid oxide fuel cell including only two thermal treatments. This method is also environmental-friendly since slurries are water based and use non-toxic additives. Slurries were formulated by optimizing powder quantity, minimizing organic compounds while controlling their stabilities rheological properties. Flexible multilayer green tapes have produced using reverse sequential tape-casting method. After a cosintering treatment under loads, anodic half-cells allowing deposition La2NiO4+δ cathode screen-printing. final consolidation treatment, presents 30µm thick porous cathode, 530µm NiO-YSZ anode 80µm dense electrolyte with gradient composition: 10GDC on side to prevent apparition La2Zr2O7 insulating phase 8YSZ avoid reduction gas. Power densities present promising performances (319mW/cm² at 830°C) given that thickness electrochemical system measurement may be improved. article protected copyright. All rights reserved.