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In-plane 2-D patterning of microporous layer by inkjet printing for water management of polymer electrolyte fuel cell

Author

Listed:
  • Bae, Insung
  • Kim, Bongsoo
  • Kim, Do-Young
  • Kim, Hyuk
  • Oh, Keun-Hwan

Abstract

An appropriate water balance between the conservation of the membrane humidity and the reduction of excess water in the cell remains a key challenge for commercialization of polymer electrolyte fuel cells (PEFCs). Here, we report a microporous layer (MPL) consisting of line patterns with different morphologies by using inkjet printing method, which provides a better water transport pathway not limiting by mass transport for reactant gases to reach the catalyst layer. The pattern-MPL coated on the gas diffusion backing layer (P-GDL) increases the power performance at 50 and 32% RH conditions comparing to commercial one (SGL, 39BC). This result suggests that the in-plane different porous pattern of MPL possesses the significant potential to improve the PEFCs performance with the water balance in the membrane/electrode assembly (MEA).

Suggested Citation

  • Bae, Insung & Kim, Bongsoo & Kim, Do-Young & Kim, Hyuk & Oh, Keun-Hwan, 2020. "In-plane 2-D patterning of microporous layer by inkjet printing for water management of polymer electrolyte fuel cell," Renewable Energy, Elsevier, vol. 146(C), pages 960-967.
    • Handle: RePEc:eee:renene:v:146:y:2020:i:c:p:960-967
    DOI: 10.1016/j.renene.2019.07.003
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