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Issue 37, 2018
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Next-generation flexible solid oxide fuel cells with high thermomechanical stability

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Abstract

Solid oxide cells (SOCs) convert chemical energy into electrical energy at high temperature with very high energy efficiency and fuel flexibility. However, repeated redox and thermal cycles in harsh environments cause mechanical deformation or crack formation under pressure derived from SOCs stacked up. Flexible ceramic components can provide SOCs with thermomechanical shock tolerance to relieve such stress and to achieve long-lasting operation. Here, a next-generation flexible SOC (F-SOC) with a bendable 3 mol% yttria-stabilized zirconia (3YSZ) electrolyte is carefully controlled by the composition-dependent phase transition, grain size, and surface roughness. Furthermore, the cell production includes simple and cost-effective techniques including tape-casting, screen-printing, and co-firing processes, ensuring its reproducibility. The F-SOC fulfills noteworthy 4.27% degradation in on–off cycles for 500 h, producing a reasonable power output. The results described here can establish a foundation towards next-generation flexible SOCs with thermomechanical shock resistance, and they could be applied in various research fields such as photovoltaics, flexible electronics, and sensors.

Graphical abstract: Next-generation flexible solid oxide fuel cells with high thermomechanical stability

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Publication details

The article was received on 18 Apr 2018, accepted on 05 Aug 2018 and first published on 08 Aug 2018


Article type: Paper
DOI: 10.1039/C8TA03573C
Citation: J. Mater. Chem. A, 2018,6, 18018-18024
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    Next-generation flexible solid oxide fuel cells with high thermomechanical stability

    O. S. Jeon, H. J. Hwang, O. Chan Kwon, J. G. Lee and Y. G. Shul, J. Mater. Chem. A, 2018, 6, 18018
    DOI: 10.1039/C8TA03573C

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