How many methods are there for lithium battery welding? Lithium battery welding manufacturer Xinde Laser shares the application of laser welding in the lithium battery industry. As the core component of new energy vehicle, the quality of power battery directly determines the vehicle performance. The precision and automation level of lithium battery manufacturing equipment will directly affect the production efficiency and consistency of the product. As a substitute for traditional welding technology, laser processing technology has been widely used in lithium battery manufacturing equipment.

It is essential to clean up the lithium battery welding machine before welding. Foreign bodies often appear in the upper and lower electrodes. Power-on inspection is necessary for us in the use of spot welders, which is an important link in the use of spot welders. So we must do a good check before using lithium batteries, so as to ensure the safety of our production.

How many methods are there for lithium battery welding?

(1) Wave crest welding: in essence, ultrasonic welding and laser welding combined;

(2) Ultrasonic welding: the advantages of this scheme is simple welding, but it needs to occupy more space, and the efficiency of the module volume group will be low;

(3) Laser welding: at present, this scheme is the most widely used, but the structure is slightly different;

(4) Dissimilar metal laser welding: This type of welding group efficiency is also high, the production speed is fast.
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