Parametric Study on Water-Cooling Plates to Improve Cooling Performance on 18650 Li-ion Battery
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Abstract
With a novel NSTDA design, pressure drop, and standard deviation of cooling water velocity inside the channel of the liquid cooling plate were evaluated under various channel counts [2, 3, 4, and 6 channels per base], inlet temperatures of water [25, 30, 35, and 40 °C], and inlet velocity of water [0.5, 1.0, 2.0, and 3.0 m/s] at steady-state conditions. It was found that the 4-channel design produced the most distributed flow with an inlet water velocity of 0.5 m/s. The average channel velocity was 0.0371 m/s. When increasing the inlet velocity of water, a larger pressure drop was observed. Simulation of heat transfer on a single row, single cooling channel design of a battery pack was performed with a channel velocity of 0.03 m/s, which imitates the 4-channel design under the heat generation produced at a charging rate of 0.75 C. An inlet temperature of 30 °C was used to keep the maximum temperature of the battery at 30.706 °C. The temperature difference over the battery pack was approximately 0.4 °C.
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This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.
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