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    • 5. 发明公开
    • 연료전지의 크로스오버 손실의 측정 방법 및 측정 장치
    • 测量燃料电池损失的方法和装置
    • KR1020080094070A
    • 2008-10-22
    • KR1020087020201
    • 2006-03-28
    • 가부시키가이샤 히타치세이사쿠쇼
    • 히라시게다카유키가모도모이치
    • H01M8/04H01M4/86
    • In transmission current density measurement by the Gottesfeld's method and methanol permeability coefficient measurement by gas chromatography and liquid chromatography, the measured values can be a measure of the crossover level. However, the correlation between the measured values and the crossover loss is unknown, and, thus, the level of the crossover loss cannot be estimated. This invention provides a novel measuring method in which the methanol crossover loss can be directly measured. The measuring method is characterized in that the crossover loss is determined based on a difference between, with respect to MEA for methanol fuel cells, voltage where a cathode catalyst layer is not influenced by methanol crossover and voltage where the cathode catalyst layer is influenced by methanol crossover.
    • 在通过Gottesfeld方法的传输电流密度测量和气相色谱和液相色谱法测定甲醇渗透系数时,测量值可以是交叉水平的量度。 然而,测量值和交叉损失之间的相关性是未知的,因此,不能估计交叉损失的水平。 本发明提供了可以直接测量甲醇交叉损失的新型测量方法。 该测量方法的特征在于,基于甲醇燃料电池的MEA,阴极催化剂层不受甲醇交叉影响的电压和阴极催化剂层受甲醇影响的电压之间的差异来确定交叉损耗 交叉。