Thermal modeling and experimental validation of a large prismatic Li-ion battery

Nicolas Damay (1, 2) , Christophe Forgez (1, 2) , Marie-Pierre Bichat (3) , Guy Friedrich (1, 2) , Alejandro Ospina (1, 2)

1 LEC - Laboratoire d'Electromécanique de Compiègne
2 UTC - Université de Technologie de Compiègne
3 E4V - E4V

This paper deals with the thermal modeling and experimental validation of a large prismatic Li-ion battery. A lumped model representing the main thermal phenomena in the cell, in and outside the casing is proposed. Most of the parameters are determined analytically, using physical and geometrical properties. The heat capacity, the internal thermal resistance and interfacial thermal resistance between the cell and its cooling system are experimentally identified. The proposed model is validated with a precision of 1°C.

Mots clés: Batteries; Li-ion; Thermal Modeling; System Identification

Domaines: Modélisation et simulation; Thermique [physics.class-ph]; Energie électrique

Nicolas Damay, Christophe Forgez, Marie-Pierre Bichat, Guy Friedrich, Alejandro Ospina. Thermal modeling and experimental validation of a large prismatic Li-ion battery. IECON 2013 - 39th Annual Conference of the IEEE Industrial Electronics Society, Nov 2013, Vienna, Austria. pp.4694 - 4699, ⟨10.1109/IECON.2013.6699893⟩. ⟨hal-01500550⟩