High-safety energy storage system

The invention relates to the field of energy storage batteries, in particular to a high-safety energy storage system which comprises an energy storage cabinet, a battery storage bin is formed in an energy storage cabinet body, an electrical equipment bin is formed above the battery storage bin, and a heptafluoropropane fire extinguisher is arranged on the side wall of one side of the energy storage cabinet body. The fire extinguishing mechanism is connected to one side of the heptafluoropropane fire extinguisher, the storage unit box body is arranged, so that the battery modules which are originally stacked together can be separately stored, and a high-strength barrier plate is further arranged between every two adjacent battery modules; once the battery module on fire explodes when not being extinguished by the fire extinguishing mechanism in cooperation with the fire control center in time, the barrier plate can effectively block and resist shock waves of explosion, so that explosion of the battery module d