Mechanism and Diagnosis of Battery External Short Circuit Fault of Lithium-ion Batteries for Electric Vehicles

Electric vehicles are widely regarded as new generation transport to reduce carbon emissions and curb global warming. Electric vehicles are driven by rechargeable batteries which can be charged with renewable and clean energy. Battery safety, as a key factor restricting the development of electric vehicles, has attracted much public attention in recent years. External short circuit (ESC) is one of the safety failures in electric vehicles, and it is also one of the reasons that trigger thermal runaway of batteries. This thesis focuses on studying battery ESC fault characteristics, ESC thermal modeling, temperature prediction, and fault diagnosis. With the efforts of this thesis, batteries will be made safer, which will benefit the development of electric vehicles.