1. In recent years, the wave of new energy vehicles has become popular all over the world; Among them, power battery, as the core component of new energy vehicle, directly determines the performance of the whole vehicle, and the precision and automation level of production equipment will directly affect the quality, efficiency and consistency of the battery.

2. As an advanced processing technology, laser welding technology is the best choice for the production of high-performance power batteries. The traditional welding method of power battery is difficult to meet the requirements because of many welding parts, difficult welding and high precision requirements, while the laser welding technology can improve the safety, reliability and prolong the service life of the battery to the greatest extent because of the small loss of welding materials, small deformation of the welded workpiece, stable equipment performance, easy operation and high welding quality and automation.

3. As a fusion manufacturing process, it is a key process in the whole production process of power battery, which breaks up raw materials such as anode and cathode materials, separator and electrolyte.Detailed explanation of welding scheme for lithium battery of new energy vehicle 01 Working principle:Laser welding is to heat the material locally in a small area by using high-energy laser pulses, and then diffuse into the material through heat conduction to form a specific molten pool after melting the material; It is a new welding method, mainly for welding thin-walled materials and precision parts, and can realize various welding methods such as spot welding, butt welding, overlapping welding and sealing welding.

4. The laser welding power battery has high energy density, small welding deformation and small heat affected zone, which can effectively improve the manufacturing accuracy and make the weld smooth, uniform and compact without additional polishing work; And has the advantages of centralized and controllable energy, high equipment welding speed, easy realization of automatic production, high yield, better battery welding safety, no side effect on human body and suitability for dust-free workshops. Because the structure of power battery usually contains many materials, laser welding of power battery can weld dissimilar metals.

5.PACK welding, super capacitor connecting piece welding, soft package welding, explosion-proof valve welding, battery cap welding, nickel sheet welding, protective plate welding, etc.

6.haituoer has accumulated a lot of practical experience in this field, which can be shared with our partners.