Effects of diverging channel design cooling plate with oblique fins for battery thermal management

Hongseok Choi, Ukmin Han, Hoseong Lee

Research output: Contribution to journalArticlepeer-review

16 Citations (Scopus)


In this study, the thermal and hydraulic performances of a battery thermal management system are investigated in terms of the design of the cooling plate. A diverging channel with oblique fins (DCOF) cooling plate is newly proposed to overcome the limitations of the conventional straight channel cooling plate. The diverging design is applied to control the coolant velocity and heat transfer area, with oblique fins inserted to enhance the heat transfer efficiency. A simulation model of the battery and cooling system is developed and experimentally validated. When the DCOF design is applied to the battery module, the temperature uniformity is improved in terms of the temperature difference and standard deviation. As the investigation is extended from the module to the battery pack, the temperature difference and temperature standard deviation in the battery module are improved by 19.07% and 27.14%, respectively. Considering the power consumption of the cooling system, as the thermal performance of the DCOF design and baseline design is maintained, the power consumption of the coolant pump of the DCOF design is significantly reduced by 67.8%.

Original languageEnglish
Article number123485
JournalInternational Journal of Heat and Mass Transfer
Publication statusPublished - 2023 Jan

Bibliographical note

Publisher Copyright:
© 2022 Elsevier Ltd


  • Battery cooling plate design
  • Battery pack
  • CFD simulation
  • Diverging channel
  • Oblique fin

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Mechanical Engineering
  • Fluid Flow and Transfer Processes


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