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

Insung Bae, Bongsoo Kim, Do-Young Kim, Hyuk Kim and Keun-Hwan Oh

Renewable Energy, 2020, vol. 146, issue C, 960-967

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).

Keywords: Microporous layer; Polymer electrolyte membrane fuel cell; Water management; GeoDict; Inkjet printing (search for similar items in EconPapers)
Date: 2020
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Persistent link: https://EconPapers.repec.org/RePEc:eee:renene:v:146:y:2020:i:c:p:960-967

DOI: 10.1016/j.renene.2019.07.003

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