BATTERY MANAGEMENT SYSTEM HAVING CONTINUOUS BATTERY CELL MONITORING FUNCTION AND OPERATING METHOD THEREFOR

A battery management system with a continuous battery cell monitoring function includes a cell monitoring unit (CMU) configured to continuously monitor a status of a plurality of battery cells included in a battery module. The CMU is further configured to, upon detecting an abnormal state of at least one battery cell, notify a battery management unit (BMU) of the abnormal state of the at least one battery cell. The system further includes the BMU configured to manage the at least one CMU. The BMU is further configured to, upon receiving notification of the abnormal state of the at least one battery cell from the CMU, transition from a sleep mode to an active mode and respond to the abnormal state of the at least one battery cell.