Investigating the Relationship Between Battery Safety and Coolant Conductivity at External Short Circuits

Battery safety is an important aspect of electric vehicles. This study investigates the relationship between battery safety and coolant electrical conductivity in the case of coolant leakage. When a leak occurs, there is a potential external short circuit in the battery which may cause the battery temperature to increase sharply. A modified lumped electric-thermal model is employed to investigate the battery electric-thermal behaviour under this situation. Based on this model, the battery short-circuit by different coolant electrical conductivity is analyzed to investigate the relationship between the coolant electrical conductivity and battery safety.