The end-plate structure design of air-cooled open-cathode low temperature proton exchange membrane fuel cell (AO-LTPEMFC) has significant effects on the performance and mass control of stack. In this work, different screws distribution, clamping forces on end-plate and thicknesses of end-plate were investigated by evaluating the indentation and cell performance in experiments, the carbon paper was used to qualitative analysis the contact pressure distribution over membrane electrode assembly (MEA). Because the materials of end-plate have the different properties, which subject to a different deformation, an optimal compression ratio which is about 75% was obtained on the GDL as a function of the clamping force and thickness of end-plate. After that, an optimal end-plate structure was designed and verified to be a function of the mechanical properties of materials. On the whole, the thinner the end-plate, the greater the torque moment, and the value linearly prevents correlating the density of the material. The results reveal that optimizing parameters leads to design end-plate with proper performance.

风冷开阴极低温质子交换膜燃料电池（AO-LTPEMFC）的端板结构设计对电池组的性能和质量控制有重要影响。在这项工作中，通过在实验中评估压痕和电池性能，研究了不同的螺钉分布，在端板上的夹紧力和端板的厚度，使用碳纸定性分析了膜电极组件（MEA）上的接触压力分布）。由于端板的材料具有不同的特性，这些特性会受到不同的变形，因此GDL上的最佳压缩比约为75％，这是夹紧力和端板厚度的函数。之后，设计并验证了最佳的端板结构是材料力学性能的函数。总体而言，端板越薄，扭矩越大，并且该值线性地防止了材料密度的相关性。结果表明，优化参数可使设计的端板具有适当的性能。