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Flow study on lithium-ion battery pack with air cooling

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Abstract

Lithium-ion batteries generate a lot of heat during charging and discharging. Rapid temperature rise in the battery system is one of the core factors that affect its performance. To avoid battery degradation and extend the lifespan of the battery pack system, it is essential to design an effective thermal management plan. We studied the performance of air cooling on the battery modules using computational fluid dynamics (CFD). The results were verified with a real-scale experimental apparatus, in which we placed pressure sensors to monitor the pressure loss around the battery pack under various inflow conditions. The numerical model was used to predict the cooling performance of the battery pack by calculating the required static pressure loss of the blower at the designed air volume. We expect to reduce the development procedure and achieve an improved thermal management plan by applying the numerical model developed in this paper.

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Abbreviations

CMH :

Cubic meter per hour (m3/h)

C-rate :

Current rate (C)

ΔP t :

Total pressure loss (Pa)

\(\vec u\) :

Velocity in x, y, z (m/s)

ρ :

Density (kg/m3)

ν :

Kinematic viscosity (m2/s)

D :

Outer diameter of battery (m)

e :

Internal energy (J/kg)

k :

Thermal conductivity (W/mK)

T :

Temperature (K)

r :

Quantity of heat (W/kg)

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Author information

Authors and Affiliations

  1. Green Energy Technology Center, Samsung Heavy Industries, Seongnam-si, 13486, Korea

    Seongjong Park, Jong Keun Yu & Heesung Lee

  2. A.R.T., Busan, 46747, Korea

    Ho Kyung Choi

Authors
  1. Seongjong Park
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  2. Jong Keun Yu
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  3. Heesung Lee
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  4. Ho Kyung Choi
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Corresponding author

Correspondence to Seongjong Park.

Additional information

Seongjong Park is a Senior Research Engineer of Green Energy Technology Center, Samsung Heavy Industries, Seongam-si, Korea. He received his Master degree in Aerospace Engineering from KAIST. His research interests include green energy, flow-induced noise and vibration.

Jong Keun Yu is a Senior Research Engineer of Green Energy Technology Center, Samsung Heavy Industries, Seongam-si, Korea. He received his Ph.D. degree in Mechanical Engineering from University of California, San Diego. His research interests include CFD, HVAC, Building Energy Modeling and CCUS.

Heesung Lee is a Senior Research Engineer of Green Energy Technology Center, Samsung Heavy Industries, Seongam-si, Korea. He received his Ph.D. degree in Naval Architecture Ocean Engineering from Pusan National University. His research interests include green energy, energy risk assessment, and safety engineering.

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Park, S., Yu, J.K., Lee, H. et al. Flow study on lithium-ion battery pack with air cooling. J Mech Sci Technol 37, 4631–4638 (2023). https://doi.org/10.1007/s12206-023-0818-6

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  • DOI: https://doi.org/10.1007/s12206-023-0818-6

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