TY  - JOUR
AU  - Leonard, Kwati
AU  - Ivanova, Mariya E.
AU  - Weber, André
AU  - Deibert, Wendelin
AU  - Meulenberg, Wilhelm A.
AU  - Ishihara, Tatsumi
AU  - Matsumoto, Hiroshige
TI  - Anode supported planar 5 × 5 cm2 SrZr0.5Ce0.4Y0.1O2.95 based solid oxide protonic fuel cells via sequential tape-casting
JO  - Solid state ionics
VL  - 379
SN  - 0167-2738
CY  - Amsterdam [u.a.]
PB  - Elsevier Science
M1  - FZJ-2022-01876
SP  - 115918 -
PY  - 2022
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.
LB  - PUB:(DE-HGF)16
UR  - <Go to ISI:>//WOS:000793570000008
DO  - DOI:10.1016/j.ssi.2022.115918
UR  - https://juser.fz-juelich.de/record/907171
ER  -