What are the advantages of laser welding machine in the battery manufacturing industry?

What are the advantages of laser welding machine in the battery manufacturing industry? With the continuous development of society, laser welding is widely used for its precise and efficient welding. In the lithium battery industry, there are many production processes for lithium ion batteries or battery packs. Among them, many processes such as explosion-proof valve sealing welding, soft connection welding, battery shell sealing welding, module and PACK welding are ideal for laser welding. The materials used for welding of power batteries are mainly pure copper, aluminum, aluminum, stainless steel, etc. The laser welding machine has a wide range of applicable materials and can be welded.

Laser welding has always been an indispensable process in the lithium battery manufacturing process, and various materials are widely used in laser welding, such as stainless steel casings, aluminum casings, polymers, etc. The high speed held by laser welding machines is unmatched by other welding technologies. With the continuous development of the industry, higher requirements are placed on the efficiency and quality of laser welding. Fiber lasers promote high-speed welding and can achieve low heat at the welding place. Input and high solidification rate to effectively control solidification defects in mixed metal welding.
The structure of the battery usually includes various materials such as steel, aluminum, copper, nickel, etc. These metals may become wires and casings, etc. Therefore, whether it is welding between one material or between multiple materials, all welding technology is proposed. Very demanding. The technical advantage of the laser welding machine is that it can weld a wide variety of materials and can realize welding between different materials.

Laser welding has high energy density, small welding deformation, and small heat-affected zone, which can effectively improve the accuracy of the workpiece. The welding seam is smooth without impurities, uniform and dense, and no additional grinding work is required; secondly, the laser welding machine can be accurately controlled and focused on the spot. Small size, high-precision positioning, and easy automation with robotic arms, improving welding efficiency, reducing man-hours, and reducing costs; in addition, when laser welding thin plates or thin-diameter wires, it is not as easy to be troubled by melting back as arc welding.

Lithium battery manufacturing equipment is generally divided into three types: front-end equipment, mid-end equipment, and back-end equipment. The equipment precision and automation level will directly affect the production efficiency and consistency of products. As an alternative to traditional welding technology, laser welding machining technology has been widely used in lithium battery manufacturing equipment.

The traditional battery manufacturing technology has been unable to meet the battery application range in terms of battery effect and cost budget. At present, the market has higher requirements for energy storage and battery life of battery applications, and lower requirements for battery weight and cost, and the challenges in the manufacturing process are still being solved.