Efficient Cathodes for Solid Oxide Fuel Cells Prepared by Polymeric Precursor Infiltration
A novel technique based on polymeric precursor infiltration into porous layers was developed to process composite materials as highly efficient cathode/current collector structures for solid oxide fuel cells (SOFCs). Powder based Pt and YSZ inks were used to form porous cathode/current collector layers on electrolyte supported symmetrical structures that were infiltrated with polymeric LSM precursor. Electrochemical testing of the samples was performed by impedance spectroscopy techniques. Polarization resistance of the cathode was as low as 0.022 Ohm.cm2 at 800°C demonstrating the potential of fabricating highly efficient cathodes. Infiltration process led to a stable composite of the cathode/current collector structures, ensuring a high current collection efficiency and long term stability at operational temperatures.
A. Buyukaksoy et al., "Efficient Cathodes for Solid Oxide Fuel Cells Prepared by Polymeric Precursor Infiltration," Journal of The Electrochemical Society, The Electrochemical Society (ECS), Jan 2012.
The definitive version is available at http://dx.doi.org/10.1149/2.042201jes
Materials Science and Engineering
Keywords and Phrases
Fuel Cells; Energy Conversion
Article - Journal
© 2012 The Electrochemical Society (ECS), All rights reserved.