Performance Evaluation of Liquid Cooling Systems in 18650 Batteries: A Case Study of Mass Flow Rate Variations in Mini-Channel Cold Plates

Rainer Samuel Fourlando, . (2025) Performance Evaluation of Liquid Cooling Systems in 18650 Batteries: A Case Study of Mass Flow Rate Variations in Mini-Channel Cold Plates. Performance Evaluation of Liquid Cooling Systems in 18650 Batteries: A Case Study of Mass Flow Rate Variations in Mini-Channel Cold Plates, 10 (2). pp. 169-190. ISSN 2548-8678

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Abstract

Managing thermal energy effectively is essential for the optimal performance, safety, and lifespan of lithium-ion batteries, which generate substantial heat during operation. Excessive temperatures can lead to capacity degradation and thermal runaway. This study numerically investigates the thermal performance of a liquid cooling system using a mini-channel cold plate for a module of eight cylindrical lithium-ion batteries. The primary objective is to evaluate the impact of varying the coolant mass flow rate on the maximum battery temperature and temperature uniformity. A computational fluid dynamics (CFD) model, validated against experimental data, was employed for the analysis. Three distinct mass flow rate configurations were simulated. The results demonstrate the system's high efficiency, maintaining the maximum battery temperature below 26.5°C across all configurations. This represents a reduction of over 49% compared to the uncooled scenario, where temperatures exceeded 52°C. The highest mass flow rate yielded the best performance, achieving a temperature reduction of 50.5% and successfully keeping the internal temperature difference below the critical threshold of 5°C. These findings indicate that the liquid cooling system not only prevents thermal runaway but also contributes to prolonging battery cycle life.

Item Type:	Article
Additional Information:	[No. Panggil : 2210311093] [Pembimbing 1 : James Julian] [Pembimbing 2 : Fitri Wahyuni] [Penguji 1 : Damora Rhakasywi] [Penguji 2 : Fahrudin]
Uncontrolled Keywords:	Cold plate, cooling system, lithium-ion batteries, mass flow rate, temperature.
Subjects:	H Social Sciences > HB Economic Theory
Divisions:	Fakultas Teknik > Program Studi Teknik Mesin (S1)
Depositing User:	RAINER SAMUEL FOURLANDO
Date Deposited:	24 Feb 2026 02:24
Last Modified:	24 Feb 2026 02:24
URI:	http://repository.upnvj.ac.id/id/eprint/41615

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