Direct lamination of solid oxide fuel cell anode support, anode, and electrolyte by sequential tape casting of thermoreversible gel slips

• Published in: Journal of power sources Vol. 212; pp. 43 - 46
• Main Authors: Shanti, N.O., Bierschenk, D.M., Barnett, S.A., Faber, K.T.
• Format: Journal Article
• Language: English
• Published: Amsterdam Elsevier B.V 15.08.2012; Elsevier
• Subjects: Applied sciences; Direct energy conversion and energy accumulation; Electrical engineering. Electrical power engineering; Electrical power engineering; Electrochemical conversion: primary and secondary batteries, fuel cells; Energy; Energy. Thermal use of fuels; Equipments for energy generation and conversion: thermal, electrical, mechanical energy, etc; Exact sciences and technology; Fuel cells; Interface toughness; Lamination; Solid oxide fuel cells; Tape casting; Solid oxide fuel cells; Lamination; Tape casting; Interface toughness; Power density; Anode; Layer thickness; Solid oxide fuel cell; Optimization; Electrochemical characteristic; Fracture toughness; Casting; Electrolyte; Anode support; Stratification; Current density
• ISSN: 0378-7753; 1873-2755
• DOI: 10.1016/j.jpowsour.2012.03.073

A novel direct lamination technique by tape casting thermoreversible gel-based slips is introduced for the production of solid oxide fuel cell anode support, anode, and electrolyte layers. Production of cells with controlled layer thicknesses of ∼10–500 μm and having well formed and relatively high toughness interfaces is demonstrated. Cells with maximum current density of 1.76 A·cm−2 and maximum power density 425 mW cm−2 were achieved using 97% H2/3% H2O fuel at 800 °C. Specific opportunities for further optimization of processing to improve electrochemical performance are highlighted. ► Thermoreversible triblock copolymer gels are adapted to tape casting of SOFCs. ► Direct lamination affords sequential casting of electrolyte, anode and anode support. ► Exemplary interlaminar strength derives from localized melting during lamination.