Simultaneous measurement of current and temperature distributions in a proton exchange membrane fuel cell

Guangsheng Zhang, Liejin Guo, Lizhong Ma, Hongtan Liu

    Research output: Contribution to journalArticlepeer-review

    74 Scopus citations

    Abstract

    Using a specially designed current distribution measurement gasket in anode and thin thermocouples between the catalyst layer and gas diffusion layer (GDL) in cathode, in-plane current and temperature distributions in a proton exchange membrane fuel cell (PEMFC) have been simultaneously measured. Such simultaneous measurements are realized in a commercially available experimental PEMFC. Experiments have been conducted under different air flow rates, different hydrogen flow rates and different operating voltages, and measurement results show that there is a very good correlation between local temperature rise and local current density. Such correlations can be explained and agree well with basic thermodynamic analysis. Measurement results also show that significant difference exists between the temperatures at cathode catalyst layer/GDL interface and that in the center of cathode endplate, which is often taken as the cell operating temperature. Compared with separate measurement of local current density or temperature, simultaneous measurements of both can reveal additional information on reaction irreversibility and various transport phenomena in fuel cells.

    Original languageEnglish (US)
    Pages (from-to)3597-3604
    Number of pages8
    JournalJournal of Power Sources
    Volume195
    Issue number11
    DOIs
    StatePublished - Jun 1 2010

    All Science Journal Classification (ASJC) codes

    • Renewable Energy, Sustainability and the Environment
    • Energy Engineering and Power Technology
    • Physical and Theoretical Chemistry
    • Electrical and Electronic Engineering

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