The Nafion membrane's chemical degradation by the Fenton mechanism involves the presence of ferrous ions Fe²⁺ but the detrimental concentration is not well known. These ions could be generated either from the balance of plant or from the bipolar plates' corrosion. As an attempt to describe the link between the two mechanisms, the membrane's degradation and the bipolar plates' corrosion were investigated. Our work is based on experimental and modelling approaches. We start with a parametric corrosion study allowing the determination of the Fe²⁺ flux using a Look-Up Table. The second step is the modelling of the Fe²⁺ effect on the membrane degradation. The third is the modelling of ionic species transport between the bipolar plates and the membrane. The final coupled degradation model is implemented in a PEMFC performance simulator based on the Matlab/Simulink® platform. The model is used to simulate the degradation mechanism during NEDC (New European Driving Cycle).

Nafion 膜的 Fenton 机制化学降解涉及亚铁离子 Fe ²⁺的存在，但其有害浓度尚不清楚。这些离子可能来自植物的平衡或双极板的腐蚀。为了描述这两种机制之间的联系，研究了膜的降解和双极板的腐蚀。我们的工作基于实验和建模方法。我们从参数腐蚀研究开始，允许使用查找表确定 Fe ²⁺通量。第二步是对 Fe ^{2+ 进行}建模膜降解的影响。第三个是模拟双极板和膜之间的离子物质传输。最终的耦合退化模型在基于 Matlab/Simulink® 平台的 PEMFC 性能模拟器中实现。该模型用于模拟NEDC（新欧洲驾驶循环）期间的退化机制。