Application of laser welding in lithium battery industry

The key technologies for the future development of electric vehicles are the safety, cost and storage capacity of power lithium batteries. The production process of power battery is complex and the safety requirement is high. Laser welding is one of the key technologies in the production process. Power battery laser welding process includes battery soft connection welding, top cover welding, sealing nail welding, module and PACK welding. Power battery laser welding parts, high reliability and safety requirements, put forward higher requirements for laser welding equipment.

Pulsed laser welding is used to weld the battery explosion-proof valve, which realizes continuous sealing welding by overlapping and covering the solder joint with the solder joint, but the welding efficiency is low and the sealing is relatively poor. Using continuous laser welding can realize high speed and high quality welding, welding stability, welding efficiency and yield can be guaranteed.

With the development of technology and technology, laser as a non-contact flexible manufacturing tool will become more and more obvious. Laser manufacturing is bound to become convenient and efficient, green environmental protection, energy saving advanced manufacturing technology, promote our industrial field of technical progress and product technology transformation, to meet the needs of the development of the national economy, especially the manufacturing industry.

The use cost of laser welding in lithium battery production, initially more lithium battery manufacturers will choose laser welding. Laser welding in lithium battery industry will be more and more widely used, and form a new development trend
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