From the production of lithium battery cells to the assembly of PACK, is a very critical step. The selection of appropriate welding methods and processes will be related to the overall cost, quality, safety and stability of the battery.


Laser welding is the use of laser beam excellent directivity and high power and other characteristics of the work, the use of optical system to focus the laser beam in a very small area, in a very short time to be welded to form a high energy density heat source area, by controlling the width of the laser pulse, energy, peak power and repetition rate and other parameters, so that the workpiece melting, forming a specific melt pool.


Power battery laser welding machine welding advantages:


1. Laser welding speed is fast, can weld deeper joints, so as to effectively reduce material deformation;


2. Suitable for welding thinner and finer materials, there will be no remelting phenomenon;


3. In the process of laser welding, because of the focus of the laser beam, the intensity of power will be increased, so as to be able to accurately position;


4. The material deformation of the welder is small, and the welding quality is superior;


Xin De laser gantry laser welding machine can be used to weld power batteries, suitable for connecting pieces of welding, nickel, etc., the main configuration of the gantry cabinet, fiber laser (1500 W, 2000 W, 3000 W, 4000 W, 6000 W, other power), fiber welding head or swing welding head, chiller, CCD display, The control software is 3600.


Xinde laser welding equipment, mainly used in new energy lithium battery pack welding: Lithium to nickel, explosion-proof valve welding, battery pole ear welding, battery pole spot welding, battery pole welding, power battery shell and cover plate sealing welding, large monomer square shell lithium battery and large polymer power battery module PACK welding, etc., for the majority of new energy lithium electric welding equipment demand enterprises, to provide better automatic welding complete solutions. According to the information provided by the new energy website, since 1990, lithium battery is its high energy density, high voltage, environmental protection, long life and fast charging and other advantages, so as to get the attention of the new energy vehicle industry. As a power source for new energy vehicles, the lithium battery industry has a huge market potential and is an important part of the national strategic development. It is expected that in the next 5-10 years, the industry scale is expected to exceed 160 billion yuan.


Power batteries are widely used, such as new energy vehicles, elevators, brakes and so on. Why is the power battery the core component of new energy vehicles? Because the power battery in the process of movement will be loose, poor contact, internal heat expansion, will cause short circuit explosion. Good power battery can prevent this situation to a large extent, its quality directly affects the performance of the whole car.