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Improvement of the mechanical durability of micro porous layer in a proton exchange membrane fuel cell by elimination of surface cracks

Author

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  • Chun, Jeong Hwan
  • Jo, Dong Hyun
  • Kim, Sang Gon
  • Park, Sun Hee
  • Lee, Chang Hoon
  • Kim, Sung Hyun

Abstract

In this study, gas diffusion layers (GDLs) for proton exchange membrane fuel cell (PEMFC) were subjected to accelerated stress tests to investigate the progression of mechanical degradation of micro porous layers (MPLs) over a short period of time, and crack-free MPL was prepared to enhance the mechanical durability of the MPL. A dummy cell was designed for the mechanical degradation of MPLs. There was no catalyst layer in the dummy cell and only air was supplied into the dummy cell to avoid electrochemical degradation of the MPL. In the MPL degradation experiments, several puddle-shape defects were formed only around the cracks in the surface of the MPL, and these defects negatively affected the performance of the PEMFC. The single cell performance dramatically decreased at a high current density due to the puddle-shape defects. Thus, crack-free MPL was manufactured to reduce mechanical damage on the surface of MPL by adding a water-soluble polymer binder to the MPL slurry. The puddle-shape defects were not detected on the surface of the home-made crack-free MPL, and the decrease in the single cell performance after mechanical degradation of MPL was insignificant when the home-made crack-free MPL was used in the cathode.

Suggested Citation

  • Chun, Jeong Hwan & Jo, Dong Hyun & Kim, Sang Gon & Park, Sun Hee & Lee, Chang Hoon & Kim, Sung Hyun, 2012. "Improvement of the mechanical durability of micro porous layer in a proton exchange membrane fuel cell by elimination of surface cracks," Renewable Energy, Elsevier, vol. 48(C), pages 35-41.
    • Handle: RePEc:eee:renene:v:48:y:2012:i:c:p:35-41
    DOI: 10.1016/j.renene.2012.04.011
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    Citations

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    Cited by:

    1. Saverio Latorrata & Paola Gallo Stampino & Cinzia Cristiani & Giovanni Dotelli, 2017. "Performance Evaluation and Durability Enhancement of FEP-Based Gas Diffusion Media for PEM Fuel Cells," Energies, MDPI, vol. 10(12), pages 1-17, December.
    2. Sim, Jaebong & Kang, Minsoo & Min, Kyoungdoug & Lee, Eunsook & Jyoung, Jy-Young, 2022. "Effects of carbon corrosion on proton exchange membrane fuel cell performance using two durability evaluation methods," Renewable Energy, Elsevier, vol. 190(C), pages 959-970.
    3. Lan, Shunbo & Lin, Rui & Dong, Mengcheng & Lu, Kai & Lou, Mingyu, 2023. "Image recognition of cracks and the effect in the microporous layer of proton exchange membrane fuel cells on performance," Energy, Elsevier, vol. 266(C).
    4. Qiu, Diankai & Peng, Linfa & Yi, Peiyun & Lehnert, Werner & Lai, Xinmin, 2021. "Review on proton exchange membrane fuel cell stack assembly: Quality evaluation, assembly method, contact behavior and process design," Renewable and Sustainable Energy Reviews, Elsevier, vol. 152(C).
    5. Sim, Jaebong & Kang, Minsoo & Oh, Hwanyeong & Lee, Eunsook & Jyoung, Jy-Young & Min, Kyoungdoug, 2022. "The effect of gas diffusion layer on electrochemical effective reaction area of catalyst layer and water discharge capability," Renewable Energy, Elsevier, vol. 197(C), pages 932-942.
    6. Alessandro Arrigoni & Valeria Arosio & Andrea Basso Peressut & Saverio Latorrata & Giovanni Dotelli, 2022. "Greenhouse Gas Implications of Extending the Service Life of PEM Fuel Cells for Automotive Applications: A Life Cycle Assessment," Clean Technol., MDPI, vol. 4(1), pages 1-17, February.
    7. Song, Ke & Wang, Yimin & Ding, Yuhang & Xu, Hongjie & Mueller-Welt, Philip & Stuermlinger, Tobias & Bause, Katharina & Ehrmann, Christopher & Weinmann, Hannes W. & Schaefer, Jens & Fleischer, Juergen , 2022. "Assembly techniques for proton exchange membrane fuel cell stack: A literature review," Renewable and Sustainable Energy Reviews, Elsevier, vol. 153(C).
    8. Aldakheel, F. & Ismail, M.S. & Hughes, K.J. & Ingham, D.B. & Ma, L. & Pourkashanian, M. & Cumming, D. & Smith, R., 2020. "Gas permeability, wettability and morphology of gas diffusion layers before and after performing a realistic ex-situ compression test," Renewable Energy, Elsevier, vol. 151(C), pages 1082-1091.

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