TY - GEN
T1 - Optimization of co-firing conditions for large-area solid oxide fuel cell fabrication by co-tape casting process
AU - Lee, Sanghun
AU - Bae, Joongmyeon
PY - 2015
Y1 - 2015
N2 - A solid oxide fuel cell (SOFCs) is one of the fuel cells, and co-tape casting process has been widely used to fabricate unit cells. In this study, each step of co-tape casting process and corresponding process conditions were studied to fabricate crackand warp-free large-area unit cells. Thermal decomposition rate, flexural strength, and shrinkage behavior were measured by thermo-gravimetric analysis, three point flexural test, and thermomechanical analysis, respectively. As a result, heat treatment steps at 250 °C and 350 °C were adopted. The anode support layer composition with coarse NiO and pore former mixture of 5 wt% of carbon black and graphite was applied to obtain the highest flexural strength. The co-sintering temperature was determined at 1250 °C to have the smallest shrinkage rate difference between anode and electrolyte. Then, a warp-free large-area unit cell with a diameter of 50 mm and open circuit voltage of 1.05V was fabricated.
AB - A solid oxide fuel cell (SOFCs) is one of the fuel cells, and co-tape casting process has been widely used to fabricate unit cells. In this study, each step of co-tape casting process and corresponding process conditions were studied to fabricate crackand warp-free large-area unit cells. Thermal decomposition rate, flexural strength, and shrinkage behavior were measured by thermo-gravimetric analysis, three point flexural test, and thermomechanical analysis, respectively. As a result, heat treatment steps at 250 °C and 350 °C were adopted. The anode support layer composition with coarse NiO and pore former mixture of 5 wt% of carbon black and graphite was applied to obtain the highest flexural strength. The co-sintering temperature was determined at 1250 °C to have the smallest shrinkage rate difference between anode and electrolyte. Then, a warp-free large-area unit cell with a diameter of 50 mm and open circuit voltage of 1.05V was fabricated.
KW - Co-tape casting
KW - Flexural strength
KW - Shrinkage
KW - Solid oxide fuel cell
UR - http://www.scopus.com/inward/record.url?scp=84994574860&partnerID=8YFLogxK
M3 - Conference contribution
AN - SCOPUS:84994574860
T3 - Proceedings of the 6th European Fuel Cell - Piero Lunghi Conference, EFC 2015
SP - 309
EP - 310
BT - Proceedings of the 6th European Fuel Cell - Piero Lunghi Conference, EFC 2015
A2 - Barchiesi, Chiara
A2 - Chianella, Michela
A2 - Cigolotti, Viviana
PB - ENEA
T2 - 6th European Fuel Cell Technology and Applications Conference - Piero Lunghi Conference, EFC 2015
Y2 - 16 December 2015 through 18 December 2015
ER -