화학공학소재연구정보센터
홈 로그인 로그아웃 연락처 사이트맵
Journal of Industrial and Engineering Chemistry, Vol.51, 153-161, July, 2017
DOI10.1016/j.jiec.2017.02.026  Export Citation
Study on the effect of current collector structures on the performance of MCFCs using three-dimensional fluid dynamics analysis
Chang-Whan Lee, Mihui Lee1, Sung-Pil Yoon1, Hyung-Chul Ham1, Sun Hee Choi1, †, Jonghee Han1, †, Suk Woo Nam1, and Dong-Yol Yang2
  • Department of Mechanical System and Design Engineering, Seoul National University of Science and Technology, Gongneung-ro 232, Nowon-gu, Seoul, 139-743, South Korea
  • 1Fuel Cell Research Center, KIST, Hwarangno 14-gil 5, Seongbuk-gu, Seoul 136-791, South Korea
  • 2School of Mechanical Engineering & Aerospace System, KAIST, Daehak-ro 291, Yuseong-gu, Daejeon 305-701, South Korea
E-mail:,
The effect of current collectors of molten carbonate fuel cells (MCFCs) was studied through threedimensional computational fluid dynamics and experiments. Three types of current collectors such as a sheet with sheared protrusions and perforated sheets were employed and performances of MCFCs were compared. A current collector structure with a large gas open area to electrodes improves diffusion characteristics between electrodes and gas flow channels. As a result, differences of gas mole fractions between gas flow channels and electrodes were decreased. Finally, Nernst loss and cathode polarization loss decreased, and the performance was enhanced. Using these results, current collector structures for improved performance and long-term operation were discussed.
Keywords:MCFC;Polarization;Current collector;CFD
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