ANALYSIS OF EFFECT OF COMPRESSIVE DEFORMATION OF GAS DIFFUSION LAYER ON THE PERFORMANCE OF PEM FUEL CELL

Lyu Bao; Han Kai; Wang Yongzhen

doi:10.19912/j.0254-0096.tynxb.2024-0241

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Acta Energiae Solaris Sinica ›› 2025, Vol. 46 ›› Issue (6) : 203-211. DOI: 10.19912/j.0254-0096.tynxb.2024-0241

ANALYSIS OF EFFECT OF COMPRESSIVE DEFORMATION OF GAS DIFFUSION LAYER ON THE PERFORMANCE OF PEM FUEL CELL

Lyu Bao¹, Han Kai^1,2, Wang Yongzhen^1,2

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Abstract

The gas diffusion layer （GDL） of proton exchange membrane （PEM） fuel cell was taken as the research object, and a spherical catalyst cluster model considering the complex structure of the catalyst layer was established based on Comsol. The relationship between GDL deformation and performance was investigated by numerical simulation and experimental verification. The results show that when the packaging load is less than 0.6 MPa, the positive effect of contact resistance reduction on the battery is dominant, and the maximum error between the contact resistance calculated value and the experimental value is 1.7%, which meets the accuracy requirements. When the encapsulation force is large, the negative effect caused by the decrease of GDL porosity is dominant, and the encapsulation load has a great influence on the distribution of liquid water saturation. When the GDL shape variable is 27.2%, the battery output power is maximum.

Key words

proton exchange membrane fuel cell / compression / numerical simulation / agglomeration model / gas diffusion layer

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Lyu Bao, Han Kai, Wang Yongzhen. ANALYSIS OF EFFECT OF COMPRESSIVE DEFORMATION OF GAS DIFFUSION LAYER ON THE PERFORMANCE OF PEM FUEL CELL[J]. Acta Energiae Solaris Sinica. 2025, 46(6): 203-211 https://doi.org/10.19912/j.0254-0096.tynxb.2024-0241

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