Preparation and Characterization of n-Octadecane@SiO2/GO and n-Octadecane@SiO2/Ag Nanoencapsulated Phase Change Material for Immersion Cooling of Li-Ion Battery

Nanoencapsulated phase change materials (NePCMs) are promising thermal energy storage (TES) and heat transfer that show great potential in battery management systems (BTMSs). In this work, nanocapsules with a paraffin core silica shell were prepared using an optimized sol-gel method. The samples characterized by different methods regarding chemical composition, properties, etc. Then, the used as coolant mixing insulation oil immersion cooling of simulative battery. sample doped Ag on core-to-shell ratio 1:1 showed best performance. Compared to without doping material, conductivity increased 49%, while supercooling degree was reduced 35.6%. average temperature cooled nanocapsule slurries decreased up 3.95 °C compared test performed pure coolant. These novel