Litio-ioizko bateria-modulu baten modelizazio elektro-termikoa eta gestio termikorako soluzioen analisia: Electro-thermal modelling of a lithium-ion based battery module and analysis of thermal management solutions

Abstract

Nowadays, lithium ion (Li-Ion) batteries are being mainly used in electric vehicles thanks to their features. Their operating temperatures must be constrained between 20◦C and 40◦C to guarantee safety and efficiency. Thus, it is required to precisely to develop thermal management strategies, which can be based on air or liquid cooling, among other solutions. In this work, an electro-thermal model of an automotive battery module is presented. Then, three thermal management approaches are analysed and compared. It is concluded that immersion cooling provides better performance figures than forced air cooling, both regarding operation temperatures and power consumption and efficiency. The developed model can be also useful for its real time execution in a microcontroller for battery module temperature estimation, as it exhibits a low computational burden.