Characterization Method for Electrothermal Model of Li-Ion Large Cells

Ronan German (1, 2) , Seïma Shili (3) , Ali Sari (3) , Pascal Venet (3) , Alain Bouscayrol (4)

1 MEGEVH - Modélisation Énergétique et Gestion d’Énergie des Véhicules Hybrides
2 L2EP - Équipe Commande
3 MIS - Ampère, Département Méthodes pour l'Ingénierie des Systèmes
4 L2EP - Laboratoire d’Électrotechnique et d’Électronique de Puissance - ULR 2697

Cell temperature is a key parameter in terms of ageing and discharge capacity. The objective of this paper is to present a reproducible method to characterize the thermal and the electrical parameters of a large cell used in an electric vehicle. A real electric vehicle lithium iron phosphate (LFP) cell is characterized thermally and electrically at 25 °C. The model temperature and voltage are then compared with the real cell using a high power WLTC (Worldwide harmonized Light duty driving Test Cycle) current cycle at 25°C ambient temperature.

Mots clés: ageing; electrothermal model; electrical parameters; Li-Ion Large Cells; characterization method; Li; temperature 25.0 degC

Domaines: Energie électrique

Ronan German, Seïma Shili, Ali Sari, Pascal Venet, Alain Bouscayrol. Characterization Method for Electrothermal Model of Li-Ion Large Cells. VPPC, Dec 2017, Belfort, France. ⟨10.1109/VPPC.2017.8330987⟩. ⟨hal-01864510⟩