APPARATUS FOR PREVENTING OVERCHARGE OF BATTERY AND METHOD FOR PREVENTING OVERCHARGE OF BATTERY BY USING THE SAME

摘要

The battery overcharge prevention device according to an embodiment of the present invention is connected to both ends of the at least one battery cell in a battery module including a plurality of battery cells to distribute the voltage of the at least one battery cell according to a preset ratio. When the voltage divided by the voltage divider and the voltage divider is greater than a preset reference voltage, the battery module and the charging module are electrically connected by the operation of the voltage sensing unit and the voltage sensing unit to allow a control current to flow. and a second relay that blocks the driving of the first relay.