Summary of - Thermal management of lithium-ion battery module using the phase change Material

Document Type

Article

Abstract

Background: Overheated Li-ion batteries may cause thermal runaway which may be responsible for significant deterioration in operational life of the battery. In the worst case, the battery may catch fire or even explode. Therefore, it is necessary to take some measures to cool the battery. The battery thermal management system should be compact, lightweight and efficient to improve its lifespan and reduce the cost.

Research Goals:

To cool the EV battery module below its threshold temperature limit of 60 °C using the phase change material.

Methodological Approach:

Experimental studies were carried out to cool the EV battery module. The following methodology was adopted.

i. A 3 × 3 battery module was designed and tested.

ii. An experimental set-up was constructed consisting of module casing, heat sink, phase change material, dimmerstat and measurement devices.

iii. Experiments were carried out at different power input settings of 10, 20, 30 and 40 W.

iv. The experimental data was analysed and the results were plotted.

Results and Discoveries:

1. The lowest time the battery module took to reach the operating temperature limit of 60_C without using the PCM was around 235, 128, 97, and 83 s for the power input of 10, 20, 30, and 40 W, respectively.

2. After incorporating the PCM, the average time taken by the battery module to reach the operating temperature limit of 60_C was extended by 100.8%, 35.5%, 24.7%, and 21.2% for the power input of 10, 20, 30, and 40 W, respectively.

3. The centrally located cell-5 was found to be the most heat-affected cell. For this cell, the temperature difference between the with and without PCM cases varied steeply with the increase in power input.

4. The temperature difference along the spanwise direction of cell-5 was observed to be more than 5 °C with and without PCM at higher power inputs of 30 and 40 W.

Citation to the base paper:

Nagmule S. and Salunkhe P.B., “Thermal management of lithium-ion battery module using the phase change material”, Proc. IMechE, Part C: Journal of Mechanical Engineering Science, 2023, 237, pp. 5767-5776.

Publication Date

June 20, 2023

Publication Date

2023

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