当饱和空气中的部分氧气在电池催化层中由于化学反应被消耗时,现有的模型不能准确描述电池内部水质量平衡的特性.基于现有模型,本文建立的新模型可以更准确地描述电池内部气-液两相之间水的转换,水的质量平衡特性得到了较大改善;同时,本文利用新模型对电池的局部和平均极化特性进行了计算并与现有模型的计算结果进行了对比.结果表明,电池的局部和平均极化特性在大电流密度条件时与现有模型的计算结果有明显差别.
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