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A 5 × 5 cm2 protonic ceramic fuel cell with a power density of 1.3 W cm–2 at 600 °C

Author

Listed:
  • Hyegsoon An

    (Korea Institute of Science and Technology
    Hanyang University)

  • Hae-Weon Lee

    (Korea Institute of Science and Technology)

  • Byung-Kook Kim

    (Korea Institute of Science and Technology)

  • Ji-Won Son

    (Korea Institute of Science and Technology
    Korea University of Science and Technology (UST), KIST Campus)

  • Kyung Joong Yoon

    (Korea Institute of Science and Technology)

  • Hyoungchul Kim

    (Korea Institute of Science and Technology)

  • Dongwook Shin

    (Hanyang University
    Hanyang University)

  • Ho-Il Ji

    (Korea Institute of Science and Technology)

  • Jong-Ho Lee

    (Korea Institute of Science and Technology
    Korea University of Science and Technology (UST), KIST Campus)

Abstract

In spite of various advantages of protonic ceramic fuel cells over conventional fuel cells, distinct scepticism currently remains about their applicability because of lower-than-predicted performance and difficulty with scale-up. These challenges mainly stem from the refractory nature of proton-conducting ceramic electrolytes and the low chemical stability of these materials during the sintering process. Here, we present the fabrication of a physically thin, structurally dense and chemically homogeneous electrolyte, BaCe0.55Zr0.3Y0.15O3-δ (BCZY3), through a facile anode-assisted densification of the electrolyte on a structurally and compositionally uniform anode support, which resulted in breakthroughs in performance and scalability. A BCZY3-based protonic ceramic fuel cell with a size of 5 × 5 cm2 exhibits an area-specific ohmic resistance of 0.09 Ω cm2 and delivers a power as high as 20.8 W per single cell at 600 °C.

Suggested Citation

  • Hyegsoon An & Hae-Weon Lee & Byung-Kook Kim & Ji-Won Son & Kyung Joong Yoon & Hyoungchul Kim & Dongwook Shin & Ho-Il Ji & Jong-Ho Lee, 2018. "A 5 × 5 cm2 protonic ceramic fuel cell with a power density of 1.3 W cm–2 at 600 °C," Nature Energy, Nature, vol. 3(10), pages 870-875, October.
    • Handle: RePEc:nat:natene:v:3:y:2018:i:10:d:10.1038_s41560-018-0230-0
    DOI: 10.1038/s41560-018-0230-0
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    Cited by:

    1. Lu, Yuzheng & Mushtaq, Naveed & Yousaf Shah, M.A.K. & Irshad, Muhammad Sultan & Rauf, Sajid & Xia, Chen & Yousaf, Muhammad & Raza, Rizwan & Lund, Peter D. & Zhu, Bin, 2022. "Improved self-consistency and oxygen reduction activity of CaFe2O4 for protonic ceramic fuel cell by porous NiO-foam support," Renewable Energy, Elsevier, vol. 199(C), pages 1451-1460.

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