화학공학소재연구정보센터
홈 로그인 로그아웃 연락처 사이트맵
Journal of Industrial and Engineering Chemistry, Vol.75, 108-114, July, 2019
DOI10.1016/j.jiec.2019.03.008  Export Citation
Effect of nano-pinholes within ceramic electrolytes of thin-film solid oxide fuel cells
Taehyun Park1, Yeageun Lee2, 3, Suk Won Cha3, †, and Ikwhang Chang2, †
  • 1School of Mechanical Engineering, Soongsil University, 369 Sangdo-ro, Dongjak-gu, Seoul 06978, Republic of Korea
  • 2Department of Automotive Engineering, Wonkwang University, 460 Iksan-daero, Iksan, Jeonbuk 54538, Republic of Korea
  • 3Department of Mechanical and Aerospace Engineering, Seoul National University, Gwanak-ro 1, Gwanak-gu, Seoul 08826, Republic of Korea
E-mail:,
The effect of nano-pinholes in the ceramic electrolyte (yttria-stabilized zirconia) on the performance of a thin-film solidoxide fuel cell(SOFC) is investigated.As a result, the open-circuitvoltage of the thin-film SOFC was not severely affected by the existence and the size of a pinhole. However, the pinhole induced a critical electrical shortage between the anode and cathode if the cathode was deposited onto the pinhole. Thus, a nano-sized pinholedoes not significantly induce fuel crossoverorcritically reduce the performance. It could, however, reduce the performance significantly during the common fabrication step, i.e. deposition of thin- film cathode on an electrolyte, of a thin-film SOFC, especially for larger pinholes.
Keywords:Electrical short;Solid oxide fuel cell;Focused ion beam;Open-circuit voltage;Pinhole
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