Verification of charge and discharge system composed of multiple lithium ion batteries

We constructed a charge and discharge system for effective utilization of an electric storage device composed of batteries. We verified the system operation by simulation analysis and actual measurement. The simulation analysis showed that it is useful to alternately use two secondary batteries as the lithium ion battery (LIB). From the measurement of 60 cycles, the use of secondary batteries under the condition of the total energy amount has proven to be recommended for alternating use with switching control.