Eventos Anais de eventos
COBEM 2023
27th International Congress of Mechanical Engineering
Numerical Modeling of a Lithium-Ion Cell Using Axial Direct Cooling Strategies
Submission Author:
Rodrigo Alonso Pires Júnior , MG , Brazil
Co-Authors:
Rodrigo Alonso Pires Júnior, Braz Cardoso Filho, Rudolf Huebner, Thales Alexandre Carvalho Maia
Presenter: Rodrigo Alonso Pires Júnior
doi://10.26678/ABCM.COBEM2023.COB2023-1121
Abstract
Electrified vehicles tend to become the major land transportation way due to less environmental impact and higher operational efficiency. Lithium-ion batteries are one of the most common energy storage devices developed for these types of vehicles. In order to maximize battery storage lifetime and prevent premature failures, research efforts have focused on the degenerative phenomena characterization and ways to reduce these negative effects during operation. Most of these studies relate battery cell’s temperature as one of the most important parameters associated with degradation phenomena, consequently, in the determination of battery’s lifespan. Several experimental results presented in literature points that cooling strategies, in which the cells exchange heat directly with the fluid have greater efficiency and provide better temperature distribution over the pack. In order to propose a faster way to design a battery direct cooling system, this study presents a numerical cell’s thermal model for axially direct cooling applications. To validate the presented model, experiments with a cell under forced convection are conducted using air as working fluid. A maximum error of 0.43 K in the cell's surface middle point temperature is encountered between the presented model and the measured on experimental tests.
Keywords
electric vehicle, lithium-ion batteries, Heat Generation, direct cooling, thermal modeling
