Measurement of relative permeability of fuel cell diffusion media

I.S. Hussaini, C.Y. Wang

Research output: Contribution to journalArticlepeer-review

76 Scopus citations

Abstract

Gas diffusion layer (GDL) in PEM fuel cells plays a pivotal role in water management. Modeling of liquid water transport through the GDL relies on knowledge of relative permeability functions in the in-plane and through-plane directions. In the present work, air and water relative permeabilities are experimentally determined as functions of saturation for typical GDL materials such as Toray-060, -090, -120 carbon paper and E-Tek carbon cloth materials in their plain, untreated forms. Saturation is measured using an ex situ gravimetric method. Absolute and relative permeability functions in the two directions of interest are presented and new correlations for in-plane relative permeability of water and air are established. © 2010 Elsevier B.V. All rights reserved.
Original languageEnglish (US)
Pages (from-to)3830-3840
Number of pages11
JournalJournal of Power Sources
Volume195
Issue number12
DOIs
StatePublished - Jun 2010
Externally publishedYes

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