Green fabrication of composite cathode with attractive performance for solid oxide fuel cells through facile inkjet printing

The inkjet printing technique has numerous advantages and is attractive in solid oxide fuel cell (SOFC) fabrication, especially for the dense thin electrolyte layer because of its ultrafine powder size. In this study, we exploited the technique for the fabrication of a porous SDC/SSC composite catho...

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Bibliographic Details
Published in:Journal of power sources 2015, Vol.273, p.465-471
Main Authors: CHAO LI, HUILI CHEN, HUANGANG SHI, TADE, Moses O, ZONGPING SHAO
Format: Article
Language:English
Subjects:
Applied sciences
Cathodes
Direct energy conversion and energy accumulation
Electrical engineering. Electrical power engineering
Electrical power engineering
Electrochemical conversion: primary and secondary batteries, fuel cells
Electrodes
Electrolytes
Electrolytic cells
Energy
Energy. Thermal use of fuels
Equipments for energy generation and conversion: thermal, electrical, mechanical energy, etc
Exact sciences and technology
Fuel cells
Inkjet printing
Materials
Porosity
Powder spraying
Solid oxide fuel cells
Thin films
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Summary:The inkjet printing technique has numerous advantages and is attractive in solid oxide fuel cell (SOFC) fabrication, especially for the dense thin electrolyte layer because of its ultrafine powder size. In this study, we exploited the technique for the fabrication of a porous SDC/SSC composite cathode layer using environmentally friendly water-based ink. An optimized powder synthesis method was applied to the preparation of the well-dispersed suspension. In view of the easy sintering of the thin film layer prepared by inkjet printing, 10 wt.% pore former was introduced to the ink. The results indicate that the cell with the inkjet printing cathode layer exhibits a fantastic electrochemical performance, with a PPD as high as 940 mW cm super(-2) at 750 [degrees]C, which is comparable to that of a cell prepared using the conventional wet powder spraying method, suggesting a promising application of inkjet printing on electrode layer fabrication.
ISSN:0378-7753
1873-2755
DOI:10.1016/j.jpowsour.2014.09.143