ENERGY STORAGE DEVICE FOR ELECTRIC VEHICLE CAPABLE OF HEATING THE LOW TEMPERATURE BATTERY AND CONTROL METHOD THEREOF

摘要

The present invention discloses an energy storage device for an electric vehicle and a control method capable of heating a low-temperature battery. The present invention relates to a battery charger that includes a temperature sensor that senses a temperature of a battery, a protection resistor that raises the temperature of the battery by generating heat when the power source is applied as one or more resistors, And a battery management system (BMS) that controls the switching unit to energize a power supply line between the charger and the protection resistor to generate a protection resistance when the temperature of the battery sensed by the temperature sensor reaches a set low temperature .