In the field of new energy storage, thermal management systems are gradually becoming an indispensable part of ensuring the safe and efficient operation of battery energy storage systems. With the large-scale application of renewable energy such as wind power and photovoltaics, the stability and safety issues of energy storage systems have become increasingly prominent, and thermal management systems play a vital role in this challenge. The main functions of energy storage thermal management systems are: battery heat dissipation, battery preheating, temperature balance, energy storage and scheduling, and thermal energy recycling.

Batteries are an important energy source. In what fields are they commonly used?
1. Transportation fields such as electric vehicles, hybrid vehicles, and light rail trains all require batteries to provide power.
2. In the field of power storage, batteries can be used as a power storage device to store excess power for emergency use.
3. Applications in the aerospace field, such as satellites, rockets, and airplanes, all require batteries to provide energy.
4. Military fields such as unmanned reconnaissance aircraft and unmanned vehicles all require batteries to provide energy.
5. Communications fields such as mobile phones, tablets, and routers.

With the continuous development of new energy storage technology and the growing demand for its application, thermal management technology will face more challenges and opportunities.

The technical route of energy storage thermal management system adopts different heat dissipation technologies:

Air cooling technology: With its simple structure, safe and reliable and easy to implement characteristics, it has been widely used in container energy storage systems and communication base station energy storage systems with low power density.

Liquid cooling technology: Using coolants such as water, ethanol, silicone oil, etc., to dissipate heat through indirect contact with the battery cells through the guide grooves on the liquid cooling plate. The advantages of this technology are its efficient cooling capacity and floor space saving, which is very suitable for the needs of future large-scale energy storage power stations.

Phase change cooling technology: Cooling is carried out by using the principle that phase change materials absorb heat during the phase change process. Phase change materials have a limited service life, and they need to rely on other heat dissipation systems such as liquid cooling or air cooling to export the absorbed heat.