Charge-discharge and energy storage circuit

The utility model relates to a charge-discharge and energy storage circuit which is used for providing power to the battery of an electromobile, and comprises an energy storage module used for storing electric energy, a charging and inverting module, a high frequency direct current charging module and a switch module, wherein the charging and inverting module is used for charging the energy storage module to store electric energy or conducting inverting on the electric energy stored by the energy storage module to generate high frequency alternating current; the high frequency direct current charging module is used for coupling and shaping the high frequency alternating current through a transformer and a rectification circuit to generate a direct current voltage so as to charge the battery of the electromobile; and the switch module is used for controlling the charging and inverting module to be connected with or disconnected from each fire wire end of a three phase power respectively, and controlling the charging and inverting module to be connected with or disconnected from the high frequency direct current charging module. The energy storage module is charged at a grid power utilization trough and is discharged at grid power utilization peak so as to charge the battery of the electromobile; when a plurality of electromobiles are charged at the same time, the energy storage module can provide instantaneous high power through the charging and inverting module without causing impact on the grid, thus avoiding potential safety hazard.