PEI film has excellent performance and can be used in proton exchange membrane fuel cells (PEMFC) and related hydrogen energy systems.
High Mechanical Strength
Enhances the tensile and tear resistance of proton exchange membranes, adapting to pressure fluctuations during fuel cell start-stop cycles.
Wide Temperature Tolerance Range
Operates stably in the range of -200°C to 180°C, meeting the requirements of PEMFCs (60–120°C) and high-temperature water electrolysis (>100°C).
Low Gas Permeability
Reduces hydrogen leakage (improving safety) and cross-contamination of reactive gases (enhancing battery efficiency).
Chemical Inertness
Resistant to acids (H⁺), free radicals (·OH), and hydrogen embrittlement, extending material service life in hydrogen energy environments.
Processability
Can be combined with perfluorosulfonic acid resins or other functional materials via solution casting, hot pressing, or composite methods, enabling customized membrane structure design.