TY - JOUR
T1 - Anode supported planar 5 × 5 cm2 SrZr0.5Ce0.4Y0.1O2.95 based solid oxide protonic fuel cells via sequential tape-casting
AU - Leonard, Kwati
AU - Ivanova, Mariya E.
AU - Weber, André
AU - Deibert, Wendelin
AU - Meulenberg, Wilhelm A.
AU - Ishihara, Tatsumi
AU - Matsumoto, Hiroshige
N1 - Funding Information:
The authors gratefully acknowledge financial aid through JSPS KAKENHI Grant-in-Aid for Scientific Research (C), No. 19K05672 , International collaboration work in the field of clean energy (NEDO No; 20001458-0 ), Federal Ministry of Education, and Research BMBF, Germany under the funding reference 03SF0555A (Prometheus), the Helmholtz Association of German Research Centres, Germany, through the MTET Program and by the International Institute for Carbon-Neutral Energy Research ( I2CNER ) funded by the World Premier International Research Center Initiative (WPI), MEXT Japan .
Publisher Copyright:
© 2022 Elsevier B.V.
PY - 2022/6
Y1 - 2022/6
N2 - Solid oxide protonic fuel cells are one of the most efficient means of directly converting stored chemical energy to usable electrical energy. Acceptor-doped Ba(Zr, Ce)O3 perovskite-type oxides are the preferred electrolyte choice as they provide higher conductivity due to lower activation energy. While substantial progress has been made on small-sized protonic laboratory-scale cells, a considerable challenge has been upscaling robust planar-type devices. This paper employs a cost-effective inverse tape casting route and screen printing to fabricate flat planar anode-supported protonic fuel cells consisting of NiO-SrZr0.5Ce0.4Y0.1O3-δ substrate, SrZr0.5Ce0.4Y0.1O3-δ electrolyte, and BaCo0.4Fe0.4Zr0.1Y 0.1O3-δ as the cathode. The processing parameters were analyzed and adjusted to obtain defect-free single cells of dimension up to 100 mm × 100 mm × 0.5 mm with diminished warping. In addition, the smooth tri-layered green tapes yielded suitably dense and gas-tight electrolyte layers after co-sintering at 1300 °C/5 h. Finally, the electrochemical performance of the 50 × 50 mm2 SrZr0.5Ce0.4Y0.1O2.95 based cells was evaluated, and their impedance spectra were deconvoluted to identify all performance-related polarization processes via the distribution of relaxation time.
AB - Solid oxide protonic fuel cells are one of the most efficient means of directly converting stored chemical energy to usable electrical energy. Acceptor-doped Ba(Zr, Ce)O3 perovskite-type oxides are the preferred electrolyte choice as they provide higher conductivity due to lower activation energy. While substantial progress has been made on small-sized protonic laboratory-scale cells, a considerable challenge has been upscaling robust planar-type devices. This paper employs a cost-effective inverse tape casting route and screen printing to fabricate flat planar anode-supported protonic fuel cells consisting of NiO-SrZr0.5Ce0.4Y0.1O3-δ substrate, SrZr0.5Ce0.4Y0.1O3-δ electrolyte, and BaCo0.4Fe0.4Zr0.1Y 0.1O3-δ as the cathode. The processing parameters were analyzed and adjusted to obtain defect-free single cells of dimension up to 100 mm × 100 mm × 0.5 mm with diminished warping. In addition, the smooth tri-layered green tapes yielded suitably dense and gas-tight electrolyte layers after co-sintering at 1300 °C/5 h. Finally, the electrochemical performance of the 50 × 50 mm2 SrZr0.5Ce0.4Y0.1O2.95 based cells was evaluated, and their impedance spectra were deconvoluted to identify all performance-related polarization processes via the distribution of relaxation time.
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U2 - 10.1016/j.ssi.2022.115918
DO - 10.1016/j.ssi.2022.115918
M3 - Article
AN - SCOPUS:85127459490
SN - 0167-2738
VL - 379
JO - Solid State Ionics
JF - Solid State Ionics
M1 - 115918
ER -