| 학회 |
한국재료학회 |
| 학술대회 |
2020년 가을 (11/18 ~ 11/20, 휘닉스 제주 섭지코지) |
| 권호 |
26권 1호 |
| 발표분야 |
C. 에너지 재료 분과 |
| 제목 |
Facile and highly durable multi-layer thin film anode supported solid oxide fuel cell with large area by co-firing |
| 초록 |
Solid oxide fuel cell SOFCs technology offers incredible potential with the advantages of fuel flexibility, high-efficiency, and environmental friendliness. A Gd-doped ceria buffer layer is required between the conventional electrolyte (YSZ/ScCeSZ) and the cathode (LSC/LSCF) to prevent their chemical reaction. The challenges lie in how to accomplish a rational design, desired architectures and microstructure for each constituent, how to fabricate the defect-free SOFC, and enhanced long-term stability at low cost. In this research, we established a multi-layer ceramic-structure is fabricated by tape casting ceramic-slurries of the different composition on-to Si-coated PET film followed by lamination co-firing at 1320°C. The cell comprises a 660µm thickness NiO yttria stabilized zirconia (NiO-YSZ) anode support, a 19 µm NiO-Scandia-stabilized zirconia (NiO-ScCeSZ) anode functional layer, 5 µm (Sc2O3)0.1(CeO2)0.01(ZrO2) electrolyte membrane and 2µm Gd0.1Ce0.9O2 buffer layer. A highly reliable multi-layer SOFC is developed that completely suppresses the harming elemental diffusion during high-temperature operation. The SOFC produces peak power densities 570 and 790mW/cm2 at 700 and 750°C respectively and outstanding long-term stability is demonstrated. The scale out and viability of mass-production are confirmed the construction of large area multi-layer cells (12cm×12cm) and showed power out-put of 29W at total applied current (60A) at 750°C. |
| 저자 |
Amjad Hussain1, Rak Hyun Song2, Dong-woo Joh3, Jong-Eun Hong4, Seung-Bok Lee5, Tak-Hyoung Lim6
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| 소속 |
1Fuel Cell Research Center, 2Korea Institute of Energy Research, 3Korea, 4Department of Advanced Energy and System Engineering, 5Univ. of Science and Technology (UST), 6Korea. |
| 키워드 |
Keywords: Solid oxide fuel cell; multi-layer; Buffer layer; stability.
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| E-Mail |
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