The influence of the gas diffusion layer on water management in polymer electrolyte fuel cells

N. Holmström (Corresponding Author), Jari Ihonen, A. Lundblad, G. Lindbergh

    Research output: Contribution to journalArticleScientificpeer-review

    40 Citations (Scopus)

    Abstract

    Performance losses due to flooding of gas diffusion layers (GDLs) and flow fields as well as membrane dehydration are two of the major problems in PEFC. In this investigation, the effect of GDL on the cell water management in PEFC is studied using segmented and single cell experiments. The behaviour of four different commercial GDLs was investigated at both high and low inlet humidity conditions by galvanostatic fuel cell experiments. The influence of varying reactant humidity and gas composition was studied. The results at high inlet humidity show that none of the studied GDLs are significantly flooded on the anode side. On the other hand, when some of the GDLs are used on the cathode side they are flooded, leading to increased mass transfer losses. The results at low inlet humidity conditions show that the characteristics of the GDL influence the membrane hydration. It is also shown that inlet humidity on the anode side has a major effect on flooding at the cathode.
    Original languageEnglish
    Pages (from-to)306-313
    JournalFuel Cells
    Volume7
    Issue number4
    DOIs
    Publication statusPublished - 2007
    MoE publication typeA1 Journal article-refereed

    Fingerprint

    Diffusion in gases
    Water management
    Fuel cells
    Electrolytes
    Atmospheric humidity
    Polymers
    Anodes
    Cathodes
    Membranes
    Dehydration
    Hydration
    Flow fields
    Mass transfer
    Experiments
    Chemical analysis
    Gases

    Keywords

    • Flooding
    • Gas diffusion layer
    • Membrane hydration
    • Polymer electrolyte fuel cell
    • Water management

    Cite this

    Holmström, N. ; Ihonen, Jari ; Lundblad, A. ; Lindbergh, G. / The influence of the gas diffusion layer on water management in polymer electrolyte fuel cells. In: Fuel Cells. 2007 ; Vol. 7, No. 4. pp. 306-313.
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    title = "The influence of the gas diffusion layer on water management in polymer electrolyte fuel cells",
    abstract = "Performance losses due to flooding of gas diffusion layers (GDLs) and flow fields as well as membrane dehydration are two of the major problems in PEFC. In this investigation, the effect of GDL on the cell water management in PEFC is studied using segmented and single cell experiments. The behaviour of four different commercial GDLs was investigated at both high and low inlet humidity conditions by galvanostatic fuel cell experiments. The influence of varying reactant humidity and gas composition was studied. The results at high inlet humidity show that none of the studied GDLs are significantly flooded on the anode side. On the other hand, when some of the GDLs are used on the cathode side they are flooded, leading to increased mass transfer losses. The results at low inlet humidity conditions show that the characteristics of the GDL influence the membrane hydration. It is also shown that inlet humidity on the anode side has a major effect on flooding at the cathode.",
    keywords = "Flooding, Gas diffusion layer, Membrane hydration, Polymer electrolyte fuel cell, Water management",
    author = "N. Holmstr{\"o}m and Jari Ihonen and A. Lundblad and G. Lindbergh",
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    The influence of the gas diffusion layer on water management in polymer electrolyte fuel cells. / Holmström, N. (Corresponding Author); Ihonen, Jari; Lundblad, A.; Lindbergh, G.

    In: Fuel Cells, Vol. 7, No. 4, 2007, p. 306-313.

    Research output: Contribution to journalArticleScientificpeer-review

    TY - JOUR

    T1 - The influence of the gas diffusion layer on water management in polymer electrolyte fuel cells

    AU - Holmström, N.

    AU - Ihonen, Jari

    AU - Lundblad, A.

    AU - Lindbergh, G.

    N1 - C

    PY - 2007

    Y1 - 2007

    N2 - Performance losses due to flooding of gas diffusion layers (GDLs) and flow fields as well as membrane dehydration are two of the major problems in PEFC. In this investigation, the effect of GDL on the cell water management in PEFC is studied using segmented and single cell experiments. The behaviour of four different commercial GDLs was investigated at both high and low inlet humidity conditions by galvanostatic fuel cell experiments. The influence of varying reactant humidity and gas composition was studied. The results at high inlet humidity show that none of the studied GDLs are significantly flooded on the anode side. On the other hand, when some of the GDLs are used on the cathode side they are flooded, leading to increased mass transfer losses. The results at low inlet humidity conditions show that the characteristics of the GDL influence the membrane hydration. It is also shown that inlet humidity on the anode side has a major effect on flooding at the cathode.

    AB - Performance losses due to flooding of gas diffusion layers (GDLs) and flow fields as well as membrane dehydration are two of the major problems in PEFC. In this investigation, the effect of GDL on the cell water management in PEFC is studied using segmented and single cell experiments. The behaviour of four different commercial GDLs was investigated at both high and low inlet humidity conditions by galvanostatic fuel cell experiments. The influence of varying reactant humidity and gas composition was studied. The results at high inlet humidity show that none of the studied GDLs are significantly flooded on the anode side. On the other hand, when some of the GDLs are used on the cathode side they are flooded, leading to increased mass transfer losses. The results at low inlet humidity conditions show that the characteristics of the GDL influence the membrane hydration. It is also shown that inlet humidity on the anode side has a major effect on flooding at the cathode.

    KW - Flooding

    KW - Gas diffusion layer

    KW - Membrane hydration

    KW - Polymer electrolyte fuel cell

    KW - Water management

    U2 - 10.1002/fuce.200700003

    DO - 10.1002/fuce.200700003

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    JO - Fuel Cells

    JF - Fuel Cells

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    ER -