As a core component of high-temperature proton exchange membrane fuel cells, membrane materials determine the commercial viability of hydrogen energy in the commercial vehicle sector, particularly in terms of their high-temperature stability, adaptability under dynamic operating conditions, and cost. Therefore, this paper reviews the technological evolution of high-temperature proton exchange membranes from laboratory research to automotive engineering applications. The performance characteristics and degradation mechanisms of perfluorinated composite membranes, phosphoric acid-doped polybenzimidazole membranes, and novel composite membranes under typical commercial vehicle operating conditions are analyzed. The compatibility bottlenecks between membrane materials and fuel cell systems are examined, along with optimization pathways for better integration. Solutions are proposed from three dimensions: material structural design, preparation process innovation, and system integration synergy. Future development directions, such as digital monitoring and green low-carbon manufacturing, are also discussed.

HT-PEM  /  FCV  /  Dynamic operating conditions  /  MEA matching