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Powder Bed Fusion 3D Printing and Performance of Stainless-Steel Bipolar Plate with Rectangular Microchannels and Microribs

Author

Listed:
  • Chul Kyu Jin

    (School of Mechanical Engineering, Kyungnam University, 7 Kyungnamdaehak-ro, Masanhappo-gu, Changwon-si 51767, Korea)

  • Jae Hyun Kim

    (School of Mechanical Engineering, Kyungnam University, 7 Kyungnamdaehak-ro, Masanhappo-gu, Changwon-si 51767, Korea)

  • Bong-Seop Lee

    (Department of Chemical Engineering, Kangwon National University, Chuncheon 24341, Korea)

Abstract

For the high performance of a fuel cell where a bipolar plate (BP) is applied, rectangular channel, microchannel width, micro-rib, enough channel quantity, adequate channel depth, and innovative flow field design should be realized from a configuration standpoint. In this study, a stainless-steel BP with a microchannel flow field is fabricated with a powder bed fusion (PBF) 3D printer to improve fuel cell performance. A BP with a triple serpentine flow field, rectangular channel, 300 μm channel width, 300 μm rib, and 500 μm channel depth is designed. The print is completed perfectly until the flow field. The bending phenomenon due to thermal deformation does not occur in the BP fabricated by designing the thickness at 2 mm. Performance tests are conducted using fabricated stainless-steel BPs. The current density value is 1.2052 A/cm 2 at 0.6 V. This value is higher by 52.8% than the BP with 940 μm channels (rectangle, 940 μm ribs, and 500 μm channel depth). In addition, the value is higher by 24.9% than a graphite BP with 940 μm channels (rectangle, 940 μm ribs, and 1000 μm channel depth). The current density values are measured at 0.6 V for 260 h.

Suggested Citation

  • Chul Kyu Jin & Jae Hyun Kim & Bong-Seop Lee, 2022. "Powder Bed Fusion 3D Printing and Performance of Stainless-Steel Bipolar Plate with Rectangular Microchannels and Microribs," Energies, MDPI, vol. 15(22), pages 1-15, November.
    • Handle: RePEc:gam:jeners:v:15:y:2022:i:22:p:8463-:d:970861
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    References listed on IDEAS

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    1. Xiong, Kangning & Wu, Wei & Wang, Shuangfeng & Zhang, Lin, 2021. "Modeling, design, materials and fabrication of bipolar plates for proton exchange membrane fuel cell: A review," Applied Energy, Elsevier, vol. 301(C).
    2. Xing, Lei & Shi, Weidong & Su, Huaneng & Xu, Qian & Das, Prodip K. & Mao, Baodong & Scott, Keith, 2019. "Membrane electrode assemblies for PEM fuel cells: A review of functional graded design and optimization," Energy, Elsevier, vol. 177(C), pages 445-464.
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