EXPERIMENTAL STUDY ON THE PERFORMANCE OF SINGLE-PHASE IMMERSION COOLING FOR LITHIUM-ION BATTERIES
Abstract
This study experimentally investigates the thermal performance of static immersion cooling for cylindrical lithium-ion batteries using a hydrocarbon-based dielectric fluid (Shell S3 X). Natural convection (NC) and static immersion cooling were compared for two battery variants at a 3C discharge rate up to 80% depth of discharge. Results demonstrate that static immersion cooling consistently outperforms natural convection. Specifically, IC reduced the average and maximum surface temperatures by up to 11.50% and 11.93%, respectively. Furthermore, thermal uniformity improved significantly, with the maximum surface temperature difference decreasing from 3.2°C to 1.6°C for Battery A, and from 7.4°C to 5.0°C for Battery B. Energy-balance analysis confirmed a reduction in residual battery heat by up to 10.03%, accompanied by an enhanced apparent heat-transfer coefficient. These findings establish that passive immersion cooling using Shell S3 X effectively suppresses temperature rise and improves thermal uniformity, offering a promising solution for battery thermal management.
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References
D. Ouyang, M. Chen, Q. Huang, J. Weng, Z. Wang, and J. Wang, “A Review on the thermal hazards of the lithium-ion battery and the corresponding countermeasures,” Jun. 01, 2019, MDPI AG. doi: 10.3390/app9122483.
Q. L. Yue, C. X. He, M. C. Wu, and T. S. Zhao, “Advances in thermal management systems for next-generation power batteries,” Dec. 01, 2021, Elsevier Ltd. doi: 10.1016/j.ijheatmasstransfer.2021.121853.
Y. Fan, Y. Bao, C. Ling, Y. Chu, X. Tan, and S. Yang, “Experimental study on the thermal management performance of air cooling for high energy density cylindrical lithium-ion batteries,” Appl. Therm. Eng., vol. 155, pp. 96–109, Jun. 2019, doi: 10.1016/j.applthermaleng.2019.03.157.
A. A. H. Akinlabi and D. Solyali, “Configuration, design, and optimization of air-cooled battery thermal management system for electric vehicles: A review,” Jun. 01, 2020, Elsevier Ltd. doi: 10.1016/j.rser.2020.109815.
S. Wu, T. Yan, Z. Kuai, and W. Pan, “Thermal conductivity enhancement on phase change materials for thermal energy storage: A review,” Energy Storage Mater., vol. 25, pp. 251–295, Mar. 2020, doi: 10.1016/j.ensm.2019.10.010.
C. Roe et al., “Immersion cooling for lithium-ion batteries – A review,” Mar. 30, 2022, Elsevier B.V. doi: 10.1016/j.jpowsour.2022.231094.
N. A. Pambudi, A. Sarifudin, R. A. Firdaus, D. K. Ulfa, I. M. Gandidi, and R. Romadhon, “The immersion cooling technology: Current and future development in energy saving,” Dec. 01, 2022, Elsevier B.V. doi: 10.1016/j.aej.2022.02.059.
J. W. Han, K. S. Garud, S. G. Hwang, and M. Y. Lee, “Experimental Study on Dielectric Fluid Immersion Cooling for Thermal Management of Lithium-Ion Battery,” Symmetry (Basel)., vol. 14, no. 10, Oct. 2022, doi: 10.3390/sym14102126.
M. Suresh Patil, J. H. Seo, and M. Y. Lee, “A novel dielectric fluid immersion cooling technology for Li-ion battery thermal management,” Energy Convers. Manag., vol. 229, Feb. 2021, doi: 10.1016/j.enconman.2020.113715.
J. Liu, L. Tao, Q. Yang, and J. Wang, “Recent advances in immersion cooling for thermal management of lithium-ion batteries,” Jan. 01, 2026, Elsevier Ltd. doi: 10.1016/j.rser.2025.116492.
Z. Xin, W. Tang, W. Yao, and Z. Wu, “A review of thermal management of batteries with a focus on immersion cooling,” Jul. 01, 2025, Elsevier Ltd. doi: 10.1016/j.rser.2025.115751.
E. Solai, M. Guadagnini, H. Beaugendre, R. Daccord, and P. Congedo, “Validation of a data-driven fast numerical model to simulate the immersion cooling of a lithium-ion battery pack,” Energy, vol. 249, Jun. 2022, doi: 10.1016/j.energy.2022.123633.
R. Febriyanto, I. Pranoto, H. M. Ariyadi, and Khasani, “Thermal performance of serpentine channel immersion cooling for lithium-ion battery 18650 with HFE-7100,” in IOP Conference Series: Earth and Environmental Science, Institute of Physics, 2023. doi: 10.1088/1755-1315/1281/1/012066.
Y. Wang et al., “Experimental studies on two-phase immersion liquid cooling for Li-ion battery thermal management,” J. Energy Storage, vol. 72, Nov. 2023, doi: 10.1016/j.est.2023.108748.
Y. Li et al., “Thermal management for the prismatic lithium-ion battery pack by immersion cooling with Fluorinated liquid,” Appl. Therm. Eng., vol. 257, Dec. 2024, doi: 10.1016/j.applthermaleng.2024.124453.
H. Choi, H. Lee, J. Kim, and H. Lee, “Hybrid single-phase immersion cooling structure for battery thermal management under fast-charging conditions,” Energy Convers. Manag., vol. 287, Jul. 2023, doi: 10.1016/j.enconman.2023.117053.
S. Hemavathi, S. Srinivas, and A. S. Prakash, “Performance evaluation of a hydrostatic flow immersion cooling system for high-current discharge Li-ion batteries,” J. Energy Storage, vol. 72, Nov. 2023, doi: 10.1016/j.est.2023.108560.
L. Zhao, J. Tong, M. Zheng, M. Chen, and W. Li, “Experimental study on the thermal management performance of immersion cooling for 18650 lithium-ion battery module,” Process Safety and Environmental Protection, vol. 192, pp. 634–642, Dec. 2024, doi: 10.1016/j.psep.2024.10.057.
“Shell Immersion Cooling Fluid S3 X,” 2023.
A. Restian, A. Nugroho, I. Pranoto, H. M. Ariyadi, and R. Febriyanto, “Experimental Study on Single-Phase Immersion Cooling for Thermal Management of Lithium-Ion Battery,” 2024.
“FERPHOS LFP 18650 DATA SHEET.”
“US18650VTC6-PRODUCT-DATASHEET”.
C. Mo, A. C. Y. Yuen, Y. Wu, B. Fei, and J. Wang, “Experiments on the effects of immersion cooling on lithium-ion battery module and mitigating battery thermal runaway,” J. Energy Storage, vol. 154, Apr. 2026, doi: 10.1016/j.est.2026.121373.
W. Ke et al., “Experimental comparison of static immersion cooling and natural air cooling for suppressing thermal runaway triggering in lithium-ion battery modules,” J. Energy Storage, vol. 149, Mar. 2026, doi: 10.1016/j.est.2026.120444.
W. Li et al., “Analysis of immersion cooling performance for LiFePO4 battery packs: coolant effect and optimization,” Thermal Science and Engineering Progress, vol. 64, Aug. 2025, doi: 10.1016/j.tsep.2025.103830.
Q. Gao, Z. Zhang, and D. Liu, “A novel immersion cooling strategy for improving the thermal performance of lithium-ion battery packs,” J. Energy Storage, vol. 141, Jan. 2026, doi: 10.1016/j.est.2025.119121.
D. Sulistio Aji, I. Pranoto, H. Mukhtar Ariyadi, H. Kurniawan, A. Restian Adi Nugroho, and M. Agung Bramantya, “Experimental Study on Single Phase Immersion Cooling for Cylindrical Lithium-Ion Batteries,” 2025.
A. B. Koucheh, P. Sharbati, C. Ünlü, A. Koşar, and A. Sadaghiani, “Comprehensive evaluation of battery cooling mechanisms including two-phase immersion with 3 MTM NOVECTM-7000 and 7100,” Energy Convers. Manag., vol. 348, Jan. 2026, doi: 10.1016/j.enconman.2025.120780.
K. Xue, Y. Guo, Y. Wang, X. Du, and B. Zhang, “Experimental study on dynamic immersion cooling of lithium-ion battery modules: Thermal behavior, heat transfer mechanisms, and parametric analysis,” Int. J. Heat Mass Transf., vol. 269, p. 129173, Nov. 2026, doi: 10.1016/j.ijheatmasstransfer.2026.129173.
S. Vikram, A. Sadar, and D. Rakshit, “Experimental study of dielectric coolant-based immersion cooling technique for lithium-ion battery packs,” J. Energy Storage, vol. 144, Jan. 2026, doi: 10.1016/j.est.2025.119741
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