Thermal Performance of Analysis of Serpentine Channel Cold Plate for 18650 Cylindrical Lithium-Ion Battery

Fitri Wahyuni; James Julian; Rainer Samuel Fourlando; Riki Hendra Purba; Fathin Muhammad Mahdhudhu; Elvi Armadani; Nely Toding Bunga

doi:10.35814/asiimetrik.v8i1.9430

Authors

Fitri Wahyuni Universitas Pembangunan Nasional Veteran Jakarta
James Julian Universitas Pembangunan Nasional Veteran Jakarta
Rainer Samuel Fourlando Universitas Pembangunan Nasional Veteran Jakarta
Riki Hendra Purba Universitas Pembangunan Nasional Veteran Jakarta
Fathin Muhammad Mahdhudhu Universitas Pembangunan Nasional Veteran Jakarta
Elvi Armadani Universitas Pembangunan Nasional Veteran Jakarta
Nely Toding Bunga Universitas Pancasila

DOI:

https://doi.org/10.35814/asiimetrik.v8i1.9430

Keywords:

thermal , li-ion, battery, mini-channel, serpentine

Abstract

This research evaluates the thermal performance of a liquid cooling system with serpentine channel inlets for an 18650 cylindrical lithium-ion battery module. The study analyzed an eight-cell module with a baseline configuration and variations featuring two, three, and four serpentine curves using computational fluid dynamics simulations validated against previous experiments. A fixed mass flow rate of 0.0001 kg/s was applied. Results showed all configurations-maintained battery temperatures below 37.5°C, preventing thermal runaway. The Baseline configuration achieved the lowest maximum temperature of 37.447°C and the highest performance factor (J/F factor) of 0.053. The two serpentine curves offered the best temperature uniformity (1.114°C) and highest heat transfer coefficient. Although more serpentine curves reduced maximum temperature, they increased pressure drop, decreasing the J/F factor. The study concludes that the serpentine cold plate design effectively manages thermal containment, with the two-curve configuration providing the best balance of heat transfer and temperature stability.

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