What is the main material of liquid cooling battery pack liquid cooling plate?
Publish Time: 2025-03-06
As a critical thermal management component in new energy vehicles and energy storage systems, the choice of material is directly related to the heat dissipation efficiency, safety and overall system stability of the battery pack. In the pursuit of high efficiency, reliability and environmental protection today, the main material of the liquid cooling plate has been continuously optimized and innovated, and has gradually formed a composite structure with aluminum alloy as the core and supplemented by a variety of high-performance materials.
Aluminum alloy has become the preferred material for liquid cooling plates due to its excellent thermal conductivity, light weight, corrosion resistance and good processing performance. The high thermal conductivity of aluminum alloy ensures that when the coolant flows in the plate, it can quickly absorb and disperse the heat generated by the battery pack, effectively maintain the battery working in the optimal temperature range, and extend the battery life. At the same time, the lightweight characteristics of aluminum alloy reduce the weight of the entire battery system, which is of great significance for improving the endurance of new energy vehicles and reducing energy consumption.
On the basis of aluminum alloy, the design of the liquid cooling plate also incorporates a variety of reinforcing materials and technologies to improve its structural strength and durability. For example, through precise profile extrusion and stamping processes, complex and fine flow channel structures are formed. These flow channels not only optimize the flow path of the coolant, improve the heat dissipation efficiency, but also enhance the overall structural strength of the liquid cooling plate. In addition, some high-end liquid cooling plates also use composite materials, such as carbon fiber or glass fiber reinforced plastics, to further enhance their impact resistance and thermal stability.
It is worth noting that the welding process of the liquid cooling plate is also one of the key factors affecting its performance. Aluminum alloy liquid cooling plates usually use advanced welding technologies such as stir friction welding and brazing to ensure the strength and sealing of the weld, prevent coolant leakage, and ensure the safe operation of the system. These welding technologies not only improve the manufacturing accuracy of the liquid cooling plate, but also reduce production costs and promote the large-scale application of liquid cooling plates.
In addition to the optimization of materials and processes, the design of the liquid cooling plate also fully considers environmental protection and sustainability. As a recyclable material, the recycling of aluminum alloy not only reduces resource waste, but also reduces environmental pollution. At the same time, the coolant used in the liquid cooling plate is also mostly environmentally friendly liquid, such as ethylene glycol aqueous solution or special synthetic oil. After long-term use, these coolants can be discharged harmlessly or reused through professional treatment.
In summary, the main material of the liquid cooling battery pack liquid cooling plate is aluminum alloy as the core, supplemented by a variety of high-performance materials and advanced processes, forming an efficient, reliable and environmentally friendly thermal management system. With the continuous development of new energy vehicles and energy storage technology, the design and material selection of liquid cooling plates will continue to innovate to meet higher standards of heat dissipation requirements and a wider range of application scenarios.
