This review presents an overview on the salient attributes of polymer electrolyte membranes (PEM) for PEMFCs. PEM is the main component in the fuel cell system for the proton transport process, which affects the overall operating performance. Studies on hydrocarbon membranes have come to the spotlight due to the high cost of PFSAs, which possess outstanding electrochemical characteristics. A major approach for defining high-performing hydrocarbon membranes is by understanding the structural and functional requisites of PEM. The optimal polymer structures in PEM that meet these requirements can be found by experimental results depending on various parameters such as chain length, functional group, etc. Various strategies for improving the pristine membrane performance will be illustrated by comparing with PFSAs modification methods in this review. In addition, possible further research to overcome low chemical stability, which is the greatest weakness, will be suggested.

本文对PEMFC的聚合物电解质膜（PEM）的显着特性进行了概述。PEM是质子传输过程中燃料电池系统中的主要成分，会影响整体运行性能。由于具有优异的电化学特性的PFSA成本高昂，因此对烃膜的研究成为关注的焦点。定义高性能烃膜的主要方法是了解PEM的结构和功能要求。可以通过实验结果找到PEM中满足这些要求的最佳聚合物结构，具体取决于链长，官能团等各种参数。通过与PFSA改性方法进行比较，可以举例说明各种提高原始膜性能的策略。 。