HYBRID ENERGY STORAGE MODULE SYSTEM HAVING AUXILIARY BATTERY

A hybrid energy storage module system for supplying electric power required to drive a load includes: an energy storage device including a second battery module, a first battery module having a higher discharge rate than the second battery module and a switching network configured to connect the first battery module to the second battery module in parallel or disconnect the first battery module from the second battery module, the energy storage device connected to the load and configured to supply electric power to the load; a first detection unit configured to measure data representing a state of the first battery module; a second detection unit configured to measure data representing a state of the second battery module; and a controller configured to receive data from the first detection unit and the second detection unit, generate a control signal for controlling the switching network, and transmit the control signal to the switching network.