Product Description
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Lithium battery module laser welding machine is a type of equipment used in the production of lithium-ion batteries. It uses laser technology to weld together the different parts of the battery module, including the electrode tabs, busbars, and other components.
The laser welding process is highly precise and allows for fast and reliable joining of the battery parts. It is also a non-contact process, which means that there is no physical pressure on the battery module during the welding process, reducing the risk of damage or deformation.
Lithium battery module laser welding machines typically use fiber lasers, which are highly efficient and reliable. They can produce welds with high accuracy and consistency, which is crucial in battery production.
Product Description
1&#;Description:
High precision lithium battery module laser welding machine has the gantry structure which can be welded in large format, and multiple sets of fixtures can be installed at the same time to weld various specifications and models of lithium battery modules.
Laser welding spot is fine, high penetration, small taper, high precision; welding surface effect is smooth and no bubbles.
The laser welding process is pollution-free, the heat affected zone is small, and the deformation is small. The water cooling system is adopted to ensure the life of the laser device.
High-definition CCD monitoring screen and red light positioning indicator make the software editing process easy and convenient.
Stable performance of industrial PC, welding system software operation is simple and easy to learn.
2&#;High precision lithium battery module laser welding machine technical parameter
Item Specifications Model HY-w Laser source w XYZ Travel Customizable R Axis Optional, 360° rotation Position Accuracy ±0.02mm Repeatability Accuracy ±0.01mm Motion Source Servo motor Max Speed 500mm/s Cooling Method Water cooling Electricity Demand Customizable Laser Wavelength nm Observation Syatem CCD system Gas Protection Optional, Argon, Nitrogen Environmental Requirements No vibration, interference and ventilation Welding Penetration 0.1~3.0mm MOQ 1 set
3&#;Lithium Battery Machine Main parts:
High-precision galvanometer welding system can effectively ensure the accuracy of welding for high precision lithium battery module laser welding machine.
High precision lithium battery module laser welding machine has the gantry structure which can be welded in large format, and multiple sets of fixtures can be installed at the same time to weld various specifications and models of lithium battery modules.
High precision lithium battery module laser welding machine which has welding fixtures are customized according to customer drawings, with high precision
High precision lithium battery module laser welding machine with CCD monitoring system, real-time monitoring, accurate positioning
Dimensional drawing, the size of the worktable can be customized according to requirements
4&#;Application:
1. Welding of battery explosion-proof valve
High precision lithium battery module laser welding machine,The explosion-proof valve of the battery is a thin-walled valve body on the battery sealing plate. When the internal pressure of the battery exceeds the specified value, the valve body of the explosion-proof valve ruptures to prevent the battery from bursting. The safety valve has an ingenious structure, and this process requires extremely strict laser welding technology. Continuous laser welding can achieve high-speed and high-quality welding, and welding stability, welding efficiency and yield can be guaranteed.
2. Welding of battery tabs
High precision lithium battery module laser welding machine,The tabs are usually divided into three materials. The positive electrode of the battery uses aluminum material, and the negative electrode uses nickel material or copper nickel-plated material. In the manufacturing process of power batteries, one of the steps is to weld the battery tabs and poles together. In the production of the secondary battery, it needs to be welded with another aluminum safety valve. Welding must not only ensure the reliable connection between the tab and the pole, but also requires a smooth and beautiful weld.
3. Spot welding of battery poles
High precision lithium battery module laser welding machine,The materials used for the battery poles include pure aluminum tape, nickel tape, aluminum-nickel composite tape, and a small amount of copper tape. The welding of battery electrode strips generally uses pulse welding machines. Due to its good beam quality and small welding spot, QCW quasi-continuous lasers are suitable for high reflectivity aluminum strips, copper strips and narrow-band battery strips (polar strip width (Under 1.5mm) welding has unique advantages.
4. The power battery shell and the cover plate are sealed and welded
High precision lithium battery module laser welding machine,The shell materials of the power battery are aluminum alloy and stainless steel (stainless and acid-resistant steel). Among them, aluminum alloy is mostly used, generally aluminum alloy, and a few use pure aluminum. Stainless steel is a laser weldable material, especially 304 stainless steel, whether it is pulsed or continuous laser, it can obtain welds with good appearance and performance.
5. Power battery module and pack welding
High precision lithium battery module laser welding machine,The series and parallel connections between power batteries are generally completed by welding the connecting piece and the single battery. The positive and negative electrodes are made of different materials. Generally, there are two kinds of materials: copper and aluminum. Ultrasonic welding is usually used. Copper and copper, aluminum and aluminum are generally used. Using laser welding. Both copper and aluminum conduct heat very quickly and have a very high reflectivity to the laser. The relatively large thickness of the connecting piece requires a higher power laser welding.
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5&#;Application Areas:
Lithium battery industry
3C Electronics Industry
Hardware industry
Aerospace industry Automobile industryMedical device industry
Energy, lighting,
building materials industry
Jewelry industry PCB industry
6&#;Samples
How many welding methods are there for lithium ion batteries? Application of laser welding in lithium ion battery industry. As the core component of new energy vehicles, the quality of power lithium battery directly determines the performance of the whole vehicle. The accuracy and automation level of lithium-ion battery manufacturing equipment will directly affect the production efficiency and consistency of products. As an alternative to traditional welding technology, laser processing technology has been widely used in lithium battery manufacturing equipment.
It is essential to clean the lithium-ion battery welding machine before welding. Foreign matters often appear at the upper and lower electrodes. Power on inspection is necessary when using the spot welding machine, which is an important link when using the spot welding machine. Sometimes electrical equipment may be exposed. Of course, there may be leakage in our gas circuit system, so we must check it before using the lithium-ion battery, So as to ensure the safety of our production.
How many welding methods are there for lithium ion batteries?
1. Wave soldering: it is essentially a combination of ultrasonic welding and laser welding;
2. Ultrasonic welding: the advantage of this method is that the welding is simple, but it takes up more space, and the volume grouping efficiency of the module will be low;
3. Laser welding: at present, this method is the most widely used, but its structure is slightly different;
4. Laser welding of dissimilar metals: this welding method has high group efficiency and fast production speed.
Application of laser welding in lithium ion battery industry
The key technology for the future development of electric vehicles is the safety, cost and energy storage capacity of power lithium-ion batteries. The manufacturing process of power lithium battery is complex and requires high safety; One of the key technologies in the manufacturing process is laser welding technology; The laser welding process of power lithium battery includes battery soft connection welding, top cover welding, seal nail welding, module and pack welding. Power lithium battery has many laser welding parts and high requirements for reliability and safety, which puts forward higher requirements for laser welding equipment.
The welding of battery explosion-proof valve adopts pulse laser welding to realize continuous sealing welding through the overlap and coverage of welding points, but the welding efficiency is low and the sealing performance is relatively poor. Continuous laser welding can realize high-speed and high-quality welding, and the welding stability, welding efficiency and yield can be guaranteed.
The shell materials of power lithium battery include aluminum alloy and stainless steel, of which aluminum alloy is the most, generally aluminum alloy, and a few use pure aluminum. Stainless steel is the material with the best Laser Weldability, especially 304 stainless steel, which can obtain welds with good appearance and performance whether pulsed or continuous laser.
Laser welding takes the laser beam as the energy source, and uses the focusing device to gather the laser into a high-power density beam to irradiate on the surface of the workpiece for heating. Under the heat conduction purpose of metal materials, the material melts inside to form a specific solution pool. When laser welding is used, the heat affected zone of the workpiece is small; Small welding spot and high welding dimensional accuracy; The welding method belongs to non-contact welding, without external force, and the product deformation is small; High welding quality; High efficiency and easy to realize automatic production.
With the continuous progress of technology and process methods, the characteristics of laser as a non-contact flexible manufacturing tool will be more obvious. Laser manufacturing is bound to become an advanced manufacturing technology with convenience, high efficiency, green environmental protection, energy conservation and consumption reduction, promote the technological progress and product technological transformation in China's industrial field, and meet the needs of the development of the national economy, especially the manufacturing industry.
China's laser industry is developing rapidly. Laser welding has made a breakthrough, and the equipment price will be further reduced, which will reduce the use cost of laser welding in the production of lithium-ion batteries. Initially, more lithium-ion battery manufacturers will choose laser welding. Laser welding will be more and more widely used in lithium-ion battery industry, and form a new development trend.
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