Thermal management system for electrochemical energy storage system

The utility model provides a thermal management system for an electrochemical energy storage system. The thermal management system comprises a refrigerant cooling circulation loop, a water cooling circulation loop and a controller, and the water cooling circulation loop is connected with the battery pack and the electric cabinet to realize heat exchange management. The water cooling circulation loop comprises a main loop and a bypass connected with the main loop. The main loop comprises an electric heater and a plate type water medium evaporator. The bypass includes a low temperature heat sink. The refrigerant cooling circulation loop comprises a gas-liquid separator, a compressor, a condenser and a thermostatic expansion valve which are sequentially connected, and the thermostatic expansion valve and the gas-liquid separator are connected into the second heat exchange channel of the plate type water medium evaporator. The heat management system disclosed by the utility model can operate in various modes, the