| Abstrakt: |
Battery is the core power component in electric vehicles, and the battery's thermal management system is an important guarantee for the best performance of the battery. Based on the 21700NCA cylindrical ternary lithium-ion battery, a battery pack system with foamed aluminum as the supporting framework was established in this paper. Phase change materials (PCM) were injected into the pores between the framework and the battery to improve the internal temperature uniformity of the structure. A liquid cooling plate was added to the bottom of the battery to enhance the cooling effect, and the coupled heat dissipation effect of the single battery was analyzed by computational fluid dynamics (CFD) simulation technology. Results showed that, compared with the single cooling mode, the coupling cooling system of metal foam, phase change material and liquid cooling can achieve better cooling effect. For phase change materials, within a certain density range, the higher the density, the better the cooling effect of the battery system. The mixing ratio of PCM mainly affects the solidification and melting rate of PCM. [ABSTRACT FROM AUTHOR] |
