A Method for Determining Anode and Cathode Impedances of a Dmfc Running on a Load

A Method for Determining Anode and Cathode Impedances of a Dmfc Running on a Load
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一种确定带负载运行的DMFC阳极和阴极阻抗的方法

DOI：
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发表时间：
2002
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通讯作者：
C. Montella
C. Montella
中科院分区：
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文献类型：
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作者：
J. Diard;N. Glandut;P. Landaud;B. L. Gorrec;C. Montella

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本文提出了一种分别测量恒负载电化学发电机正负极阻抗ZA和ZC的新方法。在这些条件下，ZA和ZC的测量不像在恒电流条件下那样简单。首先在虚拟电池上进行测量，然后在恒电流条件下使用新提出的方法在商业直接甲醇燃料电池（DMFC）上进行测量。结果的比较验证了我们的方法，表明它是自然运行条件下燃料电池阻抗谱表征的一种强大方法。
Abstract A new method for measuring separately anode and cathode impedances (ZA and ZC) of an electrochemical generator running on constant load is proposed. In these conditions, the measurement of ZA and ZC is not as simple as under galvanostatic conditions. Measurements are carried out first on a dummy cell and next on a commercial direct methanol fuel cell (DMFC) under galvanostatic conditions and using the new proposed method. The comparison of the results validate our method, showing that it is a powerful method for fuel cell EIS characterization under natural running conditions.