With the widespread application of electric vehicles, portable electronic devices and renewable energy storage systems, the development of battery technology has become crucial. However, batteries generate a lot of heat during charging and discharging. If not effectively managed, it will lead to battery performance degradation, shortened life and even safety hazards. Therefore, battery cooling technology has become a key means to improve battery performance and extend service life.
Liquid cooling technology circulates a liquid medium (such as water, ethylene glycol or cooling oil) around the battery module to absorb and take away heat. The liquid cooling system has high heat dissipation efficiency and can effectively control the battery temperature. It is suitable for high-power and high-energy density application scenarios. The disadvantages of the liquid cooling system are complex structure, high cost, high maintenance requirements, and possible leakage risks. In recent years, with the advancement of technology, liquid cooling systems have been widely used in electric vehicles and high-performance battery energy storage systems.
With the continuous advancement of battery technology, battery cooling technology is also developing. Future research directions include developing new phase change materials, optimizing the design of liquid cooling systems, improving the heat transfer efficiency of heat pipes, and combining multiple cooling technologies to achieve a more efficient and reliable battery thermal management system. In addition, intelligent and automated cooling control systems will also become an important development direction in the future, further improving battery performance and life by real-time monitoring and adjusting battery temperature.