Novel thermal management system using mist cooling for lithium-ion battery packs

Saw, Lip Huat and Poon, Hiew Mun and Thiam, Hui San and Cai, Zuansi and Chong, Wen Tong and Pambudi, Nugroho Agung and King, Yeong Jin (2018) Novel thermal management system using mist cooling for lithium-ion battery packs. Applied Energy, 223. pp. 146-158. ISSN 0306-2619, DOI

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Thermal management system is crucial for a Lithium-ion battery pack as cycle life, driving range of electric vehicle, usable capacity and safety are heavily dependent on the operating temperature. Optimum operating temperature of Lithium-ion battery pack is about 25-40 °C. Power availability of the battery pack may differ according to the operating temperature. Although air cooling is the simplest and cheapest cooling solution, the cooling capacity is still limited by the low specific heat capacity. This will cause large variation of temperature of cells across the battery pack. In this study, mist cooling is proposed for battery pack thermal management system. Experiments and numerical simulations are conducted to investigate the thermal performance of conventional dry air cooling and mist cooling. Simulation results are then validated with the experimental data. The simulation results show that mist cooling can offer lower and more uniform temperature distribution compared to dry air cooling. Mist cooling with mass flow rate of 5 gs−1 and 3% mist loading fraction is sufficient to ensure the surface temperature of the battery module maintained to below 40 °C. Therefore, mist cooling is a potential solution for the thermal management system of Lithium-ion battery pack.

Item Type: Article
Funders: Science fund Grant No. 03-02-11-SF0216 from Ministry of Science, Technology and Innovation, Malaysia
Uncontrolled Keywords: Li-ion battery; Mist cooling; Air cooling; CFD analysis; Battery temperature
Subjects: T Technology > TJ Mechanical engineering and machinery
Divisions: Faculty of Engineering
Depositing User: Ms. Juhaida Abd Rahim
Date Deposited: 19 Mar 2019 07:04
Last Modified: 19 Mar 2019 07:04

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