Advantages of laser welding applications
In recent years, the production and sales of new energy vehicles have been booming, and the demand for power batteries is gradually increasing. Power batteries are important components of the entire vehicle, and therefore their upstream and downstream industrial chains have also received widespread market attention. The production process of power batteries includes front-end, mid-range, and back-end equipment, and the level and accuracy of equipment intelligence will affect the efficiency and consistency of batteries. With the continuous expansion of power batteries, it directly drives equipment demand. As a midstream equipment for power batteries, laser welding technology plays an important role.
Wave welding and laser welding, etc. The selection of reasonable welding methods and processes is directly related to the production cost, quality, and safety of batteries. As an important process in battery production, laser welding has a significant impact on the consistency, stability, and safety of batteries. Because there are many laser welding parts for power batteries, the process is difficult, and the requirements for welding technology are higher. The application of efficient and precise laser welding can greatly improve the safety, reliability, and service life of automotive power batteries, providing important guarantees for the development of new energy vehicle power battery technology. Compared with other welding methods, laser welding has many advantages. For example, it can reduce the loss of welding materials and the deformation of the welded workpiece, the equipment performance is stable and easy to operate, and the welding quality and automation level are also higher. Therefore, the advantages of laser welding in terms of technology are more obvious compared to other methods.
Laser welding is a crucial fusion manufacturing process for power battery production enterprises, which involves breaking down raw materials such as positive and negative electrode materials, separators, and electrolytes into small pieces. It is also an indispensable process in the entire power battery production process. After welding raw materials into battery cells, PACK modules and other products, they can be directly used in the fields of traditional electronic tools, electric bicycles, energy storage stations, and new energy vehicles.
In addition, the importance of laser welding in the production of power batteries can also be reflected in the cost of welding equipment. Compared to the continuous investment in purchasing raw material costs in tons, the value of laser welding equipment ranges from hundreds of thousands to millions of RMB. In the investment of battery factories, the proportion of laser welding equipment is usually between 5-15%, while in battery pack PACK factories, the proportion is even higher, usually between 10-40%.
In recent years, many power battery companies have chosen appropriate welding methods in complex production processes based on differences in welding components and processes. And with the deepening development of the new energy vehicle industry, there is a higher demand for the welding accuracy, quality, and assembly of power batteries. In the future, it is imperative to adopt laser welding on a large scale for power batteries.
