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Through interface optimization to new generation of robust electrolyte supported cell with high power density

: Trofimenko, Nikolai; Kusnezoff, Mihails; Mosch, Sindy; Michaelis, Alexander


Eguchi, K. ; Electrochemical Society -ECS-:
Solid Oxide Fuel Cells 16 : September 8, 2019 - September 13, 2019, Kyoto, Japan
Pennington, NJ: ECS, 2019 (ECS transactions 91)
ISBN: 978-1-60768-874-7
ISBN: 978-1-62332-575-6
International Symposium on Solid Oxide Fuel Cells (SOFC) <16, 2019, Kyoto>
Fraunhofer-Gesellschaft FhG
Electricity as a Raw Material;
Conference Paper
Fraunhofer IKTS ()
SOFC; high power density; ESC; MK35X stacks; Robust Electrolyte Supported Cell

Although significant enhancement of cell performance has been achieved, there is still considerable opportunity for further improvement through the optimization of materials, interfaces and microstructure of electrodes combined with engineering focus on volume manufacturing processes, reproducibility and cost reduction. The developments of cells follow different directions in parallel. The first one represents G6 cell with new multilayer anode based on Ni/GDC cermet, which fuel electrode interfaces as well as chemical composition are improved for reducing activity against CH4 reforming using different catalytic active additives. The ASR values of G6 cell measured without additional cathode contact layer (CCL) are decreased up to 25% in comparison to state-of-the-art G3 cell electrodes. The second development direction represents cell with G3 cell electrodes, but with additional adhesion layer between substrate and air electrode. Third direction considers optimization of pastes manufacturing technology with further increase of the three phase boundary length.