Power battery is an important part of electric vehicle, and cooling system is very important to the temperature control of battery. The traditional power battery cooling system often uses cooling liquid circulation to keep the battery temperature within the appropriate range, but this method has the problems of energy waste, complex system, high maintenance cost, etc. In order to solve these problems, a new direct cooling technology for power battery refrigerant has emerged in recent years. This technology can directly contact the refrigerant with the battery to achieve more efficient battery cooling effect. This article will deeply discuss the principle, advantages and application prospect of the new technology of direct cooling of power battery refrigerant.

1. Technical principles

the new direct cooling technology of power battery refrigerant refers to the direct use of refrigerant outside the battery module or monomer for cooling, rather than through the cooling liquid circulation system. This technology usually uses cooling fin or heat transfer plate to contact the refrigerant with the battery. Through conduction and convection, the heat generated inside the battery is quickly transferred to the refrigerant to achieve rapid and effective cooling. This direct contact method can greatly improve the cooling efficiency and reduce energy waste.

2. Technical advantages

• efficient cooling: The new direct cooling technology of power battery refrigerant can achieve more efficient battery cooling effect, effectively reduce battery temperature, and improve battery life and performance.

• Energy saving and environmental protection: compared with the traditional cooling system, the new direct cooling technology of power battery refrigerant reduces energy waste and energy consumption, which conforms to the development trend of energy conservation and environmental protection.

• SeriesUnified simplification: adopting refrigerant direct cooling technology can reduce the coolant circulation components in the system, simplify the system structure, and reduce the system complexity and maintenance cost.

3. Technology Application

• electric vehicle: The new technology of power battery refrigerant direct cooling has a wide application prospect in the field of electric vehicles, which can improve the mileage and performance of electric vehicles.

• Energy Storage System: in the energy storage system, the new direct cooling technology of power battery refrigerant can improve the efficiency and stability of the energy storage system and improve the energy utilization rate.

• Aerospace: in the field of aerospace, the new direct cooling technology of power battery refrigerant can also be applied to the power system of aircraft and spacecraft to improve the reliability and safety of the system.

4. Technical prospects

power Battery as a new battery cooling method, the new refrigerant direct cooling technology has the advantages of high efficiency, energy saving, system simplification and so on, and has broad application prospects. With the rapid development of electric vehicles and energy storage systems, the new direct cooling technology of power battery refrigerant will gradually be more widely used and provide more reliable power support for the future of electrification and intelligence.