Electrospun Poly(Ether Sulfone) Membranes Impregnated with Nafion for High-Temperature Polymer Electrolyte Membrane Fuel Cells

Lee, Hong Yeon;Hwang, Hyung Kwon;Lee, Jin Goo;Jeon, Yukwon;Park, Dae-Hwan;Kim, Jong Hak;Shul, Yong-Gun

  • Received : 2016.01.11
  • Accepted : 2016.01.13
  • Published : 2016.02.29


Electrospun poly(ether sulfone) (PES) membrane impregnated with Nafion (PES-N) have been developed for high-temperature polymer-electrolyte membrane fuel cell (HT-PEMFC). The PES-N obtains highly thermal stability up to $430^{\circ}C$, which is higher than that of the commercial Nafion 212. The PES-N membrane shows a good proton conductivity of about $10^{-2}S\;cm^{-1}$ in a temperature range from $75^{\circ}C$ to $120^{\circ}C$. The membrane-electrode assembly (MEA) with the PES-N membrane exhibits a current density of $1.697A\;cm^{-2}$ at $75^{\circ}C$, and $0.813A\;cm^{-2}$ at $110^{\circ}C$ when the applied voltage is 0.6 V, whereas the MEA with the Nafion 212 membrane shows the current density of $0.647Acm^{-2}$ at $110^{\circ}C$. The results suggest that the PES-N can be a good candidate for a polymer electrolyte membrane of the HT-PEMFC.


Polymer Electrolyte Membrane;Nafion;Poly(ether sulfone);Electrospinning;Thermal Stability


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Supported by : Korea Institute of Energy Technology Evaluation and Planning (KETEP)