Proceedings of the
9th International Conference of Asian Society for Precision Engineering and Nanotechnology (ASPEN2022)
15 – 18 November 2022, Singapore

Visualization of Graphene Mineral Oil Immersion Cooling for Electric Vehicle Battery Temperature Analysis

Ya-Chi Ho1,a, Po-Chih Chen1, Yung-Jen Cheng1, Cheng-Ting Hsu1 and Da-Jeng Yao1

1Mechanical and Mechatronics Systems Research Labs., Industrial Technology Research Institute, 195, Sec. 4, Chung Hsing Rd., Chutung, Hsinchu, Taiwan 310401, R.O.C.


As the heat generation power of the batteries increases with the improved performance of electric vehicles, effective thermal management is required. The overall temperature uniformity of the battery pack is important, and immersion cooling has become an important thermal solution, immersing the battery directly in the dielectric liquid. With the introduction of graphene, the thermal conductivity of the dielectric liquid increases significantly. In this study, the graphene at 100 nm and mass concentration of 0 to 0.5wt% in mineral oil is used. According to the numerical simulation analysis, the effect of battery temperature is simulated when the battery is charged and discharged at 1C, 2C, 3C and 4C. Furthermore, the visual test platform is used to shoot the experimental state and test temperature data, and test the liquid resistance to study the feasibility of graphene in immersion cooling.

Keywords: Immersion cooling, Graphene, Battery temperature, Electric vehicle, Visualization

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