LITHIUM-ION BATTERY BEHAVIOUR CONSIDERING DIFFERENT OPERATING PARAMETERS

Li-ion batteries are essential electrical systems equipments, occupying an important position in the automotive industry as well. They serve as a source of energy and as energy storage devices and for this reason their behaviour in relation to temperature represents a particularly important aspect. The current work proposed the numerical analysis of a battery made of 18650 Li-Ion cells, considering a series of parameters. Using 3D models made in COMSOL Multiphysics, the temperature variation in such a battery was followed, varying the number of cells, their positioning inside the battery, as well as the distance between the cells. Air cooling was considered, and the simulations led to a solution with 8 cells, positioned at 27 mm between them and positioned in a standard honeycomb shape.