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Pore-Filled Proton-Exchange Membranes with Fluorinated Moiety for Fuel Cell Application

Author

Listed:
  • Hyeon-Bee Song

    (Department of Green Chemical Engineering, College of Engineering, Sangmyung University, Cheonan 31066, Korea)

  • Jong-Hyeok Park

    (Department of Green Chemical Engineering, College of Engineering, Sangmyung University, Cheonan 31066, Korea)

  • Jin-Soo Park

    (Department of Green Chemical Engineering, College of Engineering, Sangmyung University, Cheonan 31066, Korea)

  • Moon-Sung Kang

    (Department of Green Chemical Engineering, College of Engineering, Sangmyung University, Cheonan 31066, Korea)

Abstract

Proton-exchange membrane fuel cells (PEMFCs) are the heart of promising hydrogen-fueled electric vehicles, and should lower their price and further improve durability. Therefore, it is necessary to enhance the performances of the proton-exchange membrane (PEM), which is a key component of a PEMFC. In this study, novel pore-filled proton-exchange membranes (PFPEMs) were developed, in which a partially fluorinated ionomer with high cross-linking density is combined with a porous polytetrafluoroethylene (PTFE) substrate. By using a thin and tough porous PTFE substrate film, it was possible to easily fabricate a composite membrane possessing sufficient physical strength and low mass transfer resistance. Therefore, it was expected that the manufacturing method would be simple and suitable for a continuous process, thereby significantly reducing the membrane price. In addition, by using a tri-functional cross-linker, the cross-linking density was increased. The oxidation stability was greatly enhanced by introducing a fluorine moiety into the polymer backbone, and the compatibility with the perfluorinated ionomer binder was also improved. The prepared PFPEMs showed stable PEMFC performance (as maximum power density) equivalent to 72% of Nafion 212. It is noted that the conductivity of the PFPEMs corresponds to 58–63% of that of Nafion 212. Thus, it is expected that a higher fuel cell performance could be achieved when the membrane resistance is further lowered.

Suggested Citation

  • Hyeon-Bee Song & Jong-Hyeok Park & Jin-Soo Park & Moon-Sung Kang, 2021. "Pore-Filled Proton-Exchange Membranes with Fluorinated Moiety for Fuel Cell Application," Energies, MDPI, vol. 14(15), pages 1-13, July.
    • Handle: RePEc:gam:jeners:v:14:y:2021:i:15:p:4433-:d:599551
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    References listed on IDEAS

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    1. Pan, Mingzhang & Pan, Chengjie & Li, Chao & Zhao, Jian, 2021. "A review of membranes in proton exchange membrane fuel cells: Transport phenomena, performance and durability," Renewable and Sustainable Energy Reviews, Elsevier, vol. 141(C).
    2. Do-Hyeong Kim & Moon-Sung Kang, 2020. "Pore-Filled Anion-Exchange Membranes with Double Cross-Linking Structure for Fuel Cells and Redox Flow Batteries," Energies, MDPI, vol. 13(18), pages 1-16, September.
    3. Mohammadi, Maryam & Mehdipour-Ataei, Shahram, 2020. "Durable sulfonated partially fluorinated polysulfones as membrane for PEM fuel cell," Renewable Energy, Elsevier, vol. 158(C), pages 421-430.
    4. Seohee Lim & Jin-Soo Park, 2020. "Composite Membranes Using Hydrophilized Porous Substrates for Hydrogen Based Energy Conversion," Energies, MDPI, vol. 13(22), pages 1-14, November.
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    Cited by:

    1. Beom-Seok Kim & Jin-Soo Park, 2021. "Fouling Mitigation of Ion Exchange Membranes in Energy Conversion Devices," Energies, MDPI, vol. 15(1), pages 1-10, December.
    2. Fan Yang & Xiaoming Xu & Yuehua Li & Dongfang Chen & Song Hu & Ziwen He & Yi Du, 2023. "A Review on Mass Transfer in Multiscale Porous Media in Proton Exchange Membrane Fuel Cells: Mechanism, Modeling, and Parameter Identification," Energies, MDPI, vol. 16(8), pages 1-24, April.

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