To study the effect of microstructure of porous gas diffusion layer(GDL) in proton exchange membrane fuel cell(PEMFC) on simulation, an effective method must be used to express the microstructure.

• 为了研究质子交换膜燃料电池扩散层多孔材料微结构对仿真结果的影响,首先必须找出一种有效的方法来描述其微结构。