Experimental Study on Single-Phase Immersion Cooling for Thermal Management of Lithium-Ion Battery
Abstract
Battery thermal management is a critical component for maintaining safe and efficient operation, particularly in the context of electric vehicle applications. The immersion cooling technique, which employs S3 X immersion coolant, has been recognized as an effective method to address overheating during battery operation. This study examines the effectiveness of S3 X coolant in managing temperature in LiFePO4 18650-type lithium-ion cylindrical battery packs. Experimental results showed that at a discharge rate of 2.5C, the maximum temperature recorded was 43.2°C with natural cooling and 36°C with immersion cooling. The immersion technique successfully reduced the average surface temperature of the battery by 15.03% and minimized the maximum temperature difference from 4.4°C to 1.9°C at a discharge level of 2.5C. Based on these results, immersion cooling proved to be an efficient solution for the battery thermal management system, supporting more stable and reliable operation
Keywords: Immersion cooling, dielectric fluids, thermal management, lithium-ion battery,S3 X
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