Modeling of the Thermal Behavior of a Lithium-Ion Battery Pack
TP-AAB-EUROPE_2010_P_02
02/05/2010
- Content
- The performance and life-cycle costs of electric vehicle (EV) and hybrid electric vehicle (HEV) depend inherently on battery packs. Temperature uniformity in a pack is an important factor for obtaining optimum performance for an EV or HEV battery pack, because uneven temperature distribution in a pack leads to electrically unbalanced battery cells and reduced pack performance. In this work, a threedimensional modeling was carried out to investigate the effects of operating conditions on the thermal behavior of a lithium-ion battery pack for an EV or HEV application. The operating conditions considered were the discharge rate of a battery pack and the temperature and flow rate of cooling air. Thermal conductivities of various compartments of the battery were estimated based on the equivalent network of parallel/series thermal resistances of battery components. Heat generation rate in a cell was calculated using the modeling results of the potential and current density distributions of a battery cell.
- Citation
- Hong, Y., and Kim, S., "Modeling of the Thermal Behavior of a Lithium-Ion Battery Pack," SAE Technical Paper TP-AAB-EUROPE_2010_P_02, 2010, .