Purpose: This study investigates the effect of gas diffusion layer (GDL) thickness on the compression characteristics of gaskets in hydrogen fuel cells. It attempts to elucidate the impact of varying GDL thicknesses on the mechanical stability and performance of fuel cell components, thereby optimizing fuel cell efficiency and durability.BRMethods: The material constants of an ethylene propylene diene monomer (EPDM) were deduced via the Mooney-Rivlin and Yeoh models, and the obtained results were analyzed by performing compression tests on gasket models with GDL thicknesses of 0.2, 0.3, 0.4, and 0.75 mm.BRResults: The optimal structural stability of the gasket as a function of GDL thickness was determined at GDL thicknesses of 0.3 and 0.2 mm for the Mooney-Rivlin and Yeoh models, respectively, thus verifying the effect of thickness on the gasket's structural stability.BRConclusion: These findings underscore the significant role of GDL thickness in influencing the mechanical properties of fuel cell gaskets. This emphasizes the importance of precise GDL thickness selection for optimal fuel cell designs.
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Park et al. (2024) studied this question.
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