首页> 外文会议>International Conference on Fuel Cell Science, Engineering and Technology; 20040614-20040616; Rochester,NY; US >CORROSION RESISTANT, LIGHTWEIGHT, AND INEXPENSIVE METALLIC BIPOLAR PLATES WITH EXCELLENT MANUFACTURABILITY FOR PEM FUEL CELL POWER SYSTEMS
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CORROSION RESISTANT, LIGHTWEIGHT, AND INEXPENSIVE METALLIC BIPOLAR PLATES WITH EXCELLENT MANUFACTURABILITY FOR PEM FUEL CELL POWER SYSTEMS

机译:具有出色制造能力的耐腐蚀,重量轻且无害的金属双极板,用于PEM燃料电池电力系统

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Corrosion resistant metal treated bipolar plates with higher rigidity and electrical conductivity than graphite were developed and tested for PEM fuel cell applications. Six replicas of single cells, three of which were made of graphite composites bipolar plates and the other three were made of the treated metallic plates. An Electrode Membrane Assembly (MEA) with 5.55 cm~2 active electrode areas, double-sided electrodes, 0.3 mg/cm~2 Pt loading and Nafion membrane 115 was fitted to each cell and operated under identical conditions. The experimental testing was conducted at room temperature 20℃. The obtained data from the three graphite cells were averaged and plotted and the other metallic cells' data were similarly treated and plotted on the same graph for comparison. Generally, the metallic treated bipolar plate provided at least 12% saving in hydrogen consumption in comparison to graphite. This is attributed to the lower bulk and surface contact resistance of the metal used in this study in relation to graphite. The results of the lifetime testing, conducted at room temperature under variable loading showed no indication of power degradation due to metal corrosion for at least 1500 hours.
机译:已开发出具有比石墨更高的刚度和导电性的耐腐蚀金属处理的双极板,并已针对PEM燃料电池应用进行了测试。六个单电池复制品,其中三个由石墨复合材料双极板制成,其他三个由处理过的金属板制成。将具有5.55cm 2的活性电极面积,双面电极,0.3mg / cm 2的Pt负载和Nafion膜115的电极膜组件(MEA)安装到每个电池并在相同条件下操作。实验测试在室温20℃下进行。从三个石墨电池获得的数据进行平均并作图,对其他金属电池的数据进行类似处理,并绘制在同一张图上进行比较。通常,与石墨相比,经金属处理的双极板可节省至少12%的氢消耗。这归因于本研究中所用金属相对于石墨较低的体积和表面接触电阻。在室温下以可变负载进行的寿命测试结果表明,至少有1500小时没有因金属腐蚀而导致功率下降的迹象。

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