What is battery thermal management system?

Battery thermal management system (BTMS) is a closed -loop temperature control system composed of heat -conducting medium, measurement and control unit, and temperature control equipment. It makes power battery work within the appropriate temperature range to maintain its best use state to ensure the performance and life of the battery system.

How does battery thermal management work?

For EV battery cooling system, liquid cooling is the most common and stable solution.Battery liquid cooling: The battery exchanges heat with the coolant through the cooling plate. The cooled or heated coolant is sent into the heat exchanger by a water pump, and heat exchange and shunting are performed inside it, thus forming a continuous and stable liquid cooling system for battery. A virtuous cycle.

The battery liquid cooling system consists of a compressor, condenser, expansion valve, plate heat exchanger, electronic water pump, PTC liquid heater, expansion tank, and electrical control. When the battery needs to be cooled for operation, the battery exchanges heat with the coolant through the cooling plate, and the heated coolant is sent into the heat exchanger by the electronic water pump. The refrigerant is introduced into one side of the heat exchanger and the coolant is introduced into the other side. The two exchange heat in the heat exchanger, so that the heat is taken away by the refrigerant. The cold coolant flows out of the heat exchanger and then flows into the battery. The system forms a cycle; when the battery is at low temperature and needs to be heated, the refrigeration circuit is closed and the PTC liquid heater is turned on. The coolant is heated and sent into the battery, and the battery is heated through the cooling plate. The battery thermal management controls the internal temperature of the battery by controlling the on and off of the refrigeration circuit and the PTC liquid heater.

What is the difference between BMS and BTMS?

Simply put, BMS is a battery management

As a professional electric bus air conditioner manufacturer in China, Molead CLING bus HVAC offers all kinds of bus air conditioner solutions for 6-25m bus, citybus, coach, school bus, shuttle bus, special vehicles and battery thermal management system, with shortest leadtime possible! 20 years professional experience and reputation guarantees the extraordinary performance!

If you have any questions please don't hesitate to contact us.

E-mail: marketing@molead.com

WhatsApp: +86 18736032501

Phone: +86 18736032501