In this paper. a method to improve the performance of PEMFCs using porous material as a flow channel baffle is proposed. The results show that PEMFCs with four porous baffles flow channels have better performance at high current density compared with the traditional flow channel. The structural parameters of the flow channel explored in this study include porosity. https://www.spidertattooz.com/Tumma-figaro-kaulaketju-teras-kaulakoru-8mm-55cm/