[15P-T2-01] Experimental and Simulative Study of Porous Ti-6Al-4V Gas Diffusion Layer for Polymer Electrolyte Membrane Electrolyzer
キーワード：Gas diffusion layer, Ti-6Al-4V, Simulation
Gas diffusion layer (GDL) is a crucial component in PEMFCs, exerting a significant influence on their performance. It facilitates fluid movement to the electrodes, while also shielding other components from corrosion and erosion during operation. GDLs must be designed with high thermal and electrical conductivity, robust mechanical properties, superior corrosion resistance, and enhanced permeability. Optimal thermal and electrical properties are essential for efficient ion transport and fluid management. The combination of high mechanical strength and porosity is necessary to withstand fluid pressure at elevated temperatures, ensuring efficient fluid permeability. The porosity and pore morphology of GDLs significantly impact their performance and, consequently, the efficiency of PEM fuel cells. Therefore, the design optimization of GDL materials and porosity is paramount to achieving the desired properties.This study focuses on the fabrication of porous materials for GDLs using Ti-6Al-4V alloy, known for its excellent mechanical and chemical durability, through a tape casting process. GeoDict was employed for modeling, simulation, and optimization processes. The experimental results were compared with simulation outcomes from the GeoDict simulation tool, demonstrating an accuracy of approximately 96%.