Under the vision of carbon peaking and carbon neutrality, the energy storage market has entered the fast lane of development, especially electrochemical energy storage represented by lithium-ion batteries. With the increase in the scale of energy storage, the market is constantly putting forward requirements for the life, safety and efficiency of lithium-ion battery energy storage.

In particular, safety, the recently frequently reported energy storage accidents have caused people to worry about the thermal runaway of lithium-ion batteries again. Lithium-ion batteries need to work in a comfortable temperature environment, and the temperature consistency of the cells also seriously affects the efficiency and safety of the energy storage system. Therefore, precise control of battery temperature is an important means to further improve the safety of the energy storage system and improve the efficiency and lifespan of the energy storage system.

At present, there are solutions for temperature management in the field of energy storage, such as air-cooled heat dissipation and liquid-cooled heat dissipation. Industry experts believe that air-cooled heat dissipation brings the heat generated by the cell to the outside through the fan, which has the advantages of simple structure and low cost, but the heat transfer coefficient is low, the cooling speed is slow, and a large area of heat dissipation channels is required, and the energy consumption is relatively low. High; liquid cooling heat dissipation through cooling liquid convection heat exchange, reducing battery temperature, high thermal conductivity, more uniform heat dissipation, and lower energy consumption.

Although the current proportion of air-cooled heat dissipation is relatively high, as the scale and energy density of energy storage systems increase, higher requirements will be placed on the temperature management of energy storage systems, and liquid cooling technology has received more and more attention. With the continuous maturity of its technology and application scenarios, the comprehensive advantages of liquid cooling to increase energy density, reduce floor space, and reduce energy consumption will be further highlighted.
Judging from the energy storage products continuously launched in the market, the use of liquid cooling technology has become an industry development trend. Energy storage integrators represented by CATL, BYD, Envision Energy, Sungrow, Hyperstron, NARI Jibao, and Kelu have released liquid cooling products. focus.