Modified redox couple fuel cell cathodes and fuel cells employing same
    25.
    发明授权
    Modified redox couple fuel cell cathodes and fuel cells employing same 失效
    改进的氧化还原对燃料电池阴极和使用其的燃料电池

    公开(公告)号:US06790551B2

    公开(公告)日:2004-09-14

    申请号:US10238275

    申请日:2002-09-10

    IPC分类号: H01M400

    摘要: Fuel cell oxygen electrodes and instant startup fuel cells employing the oxygen electrode. The oxygen electrodes operate through the mechanism of redox couples which uniquely provide multiple degrees of freedom in selecting the operating voltages available for such fuel cells. Such oxygen electrodes provide the fuel cells in which they are used a “buffer” or “charge” of oxidizer available within the oxygen electrode at all times. The redox couple materials are modified to inhibit dissolution of the materials into the alkaline electrolyte of the fuel cell, and to match the gas phase kinetics of the active redox couple material with its electrochemical kinetics.

    摘要翻译: 燃料电池氧电极和采用氧电极的即时启动燃料电池。 氧电极通过氧化还原对的机制进行操作,其唯一地提供了选择可用于这种燃料电池的工作电压的多个自由度。 这样的氧气电极提供燃料电池,其中它们被使用在氧气电极中始终可用的氧化剂的“缓冲”或“充电”。 修饰氧化还原电极材料以抑制材料溶解到燃料电池的碱性电解质中,并使活性氧化还原电阻材料的气相动力学与其电化学动力学相匹配。