Magnetic field‐aligned proton exchange membranes: A review of progress and challenges in the fuel cell applications

Abstract

AbstractBackgroundThe well‐aligned proton exchange membrane (PEM) developed through magnetic field treatment has had a significant impact on the chemistry community related to fuel cell technologies. This is because it possesses advanced proton transport properties that can be efficiently utilized in energy storage devices. The aligned membrane boasts exceptional proton conductivity and power density, particularly in hydrogen‐oxygen fuel cell applications, due to its short proton conduction path, low dependency on humidity, and high barrier to gas permeability. These characteristics can enhance the performance of the aligned PEM.MethodsThis review outlines various methods for fabricating aligned membranes using a magnetic field. It summarizes the previous and current research and development aimed at improving the properties of the aligned PEM for fuel cell applications.Significant FindingsSeveral research gaps and challenges in enhancing the performance of magnetic field‐aligned PEM have been identified in this review, suggesting promising avenues for future research.