Kausthubharam, n.Koorata, P.K.Panchal, S.Fraser, R.Fowler, M.2026-02-042024Journal of Energy Storage, 2024, 84, , pp. -https://doi.org/10.1016/j.est.2024.110928https://idr.nitk.ac.in/handle/123456789/21174This article presents a diagonal-type minichannel-based thermal management system for a 20 Ah pouch cell battery. An optimal thermal strategy is suggested by numerically investigating the cooling performance of the proposed design for various structural and operational parameters. Besides the design, mini-channel optimization is observed to have played a significant role in pressure drop and temperature. An operational parametric study recommends an inlet temperature of 25 °C and a flow rate of 12.5 cm3/s for the liquid coolant for optimal pouch cell performance. The enhancement of temperature distribution uniformity is noted to diminish at higher cooling fluid flow rates. Further, a comparison with existing literature revealed a 75 % increase in temperature homogeneity across the pouch cell. The feasibility of the proposed design with an optimized cooling framework at the module level is demonstrated for the 43 V battery pack. The thermal system maintained the maximum temperature in the pack 20 % below the upper limit of the recommended range for Li-ion cells. © 2024 Elsevier LtdBattery PackBiomimeticsCoolingFlow of fluidsLithium-ion batteriesThermal management (electronics)20 ah pouch cellBattery packCold platesDischarge ratesLarge-formatLiquid cooledMini-channelsThermalThermal management systemsThermal PerformanceTemperature control