Energy storage battery module box with automatic early warning pop-up function and working method of energy storage battery module box

The invention discloses an energy storage battery module box with an automatic early warning ejection function and a working method thereof.The energy storage battery module box structurally comprises a battery cabinet, a battery module box body, a battery management system, an early warning ejection device and a sliding rail base, and the battery module box body is slidably arranged in the battery cabinet through the sliding rail base; the early warning ejection device is connected with the battery module box main body and the battery management system respectively. The early-warning ejection device disclosed by the invention can be used for early warning when the temperature abnormity of the battery is monitored, and ejecting the fault battery module box out of the battery cabinet body, so that the abnormal battery module box and the normal battery module box are not tightly arranged any more; therefore, a fire extinguishing coolant released by an existing fire extinguishing system of the electrochemical en