Laser automated roll cleaning solutions

The roller is an important piece of equipment in the process of a new energy lithium battery. Through the roll pressure, the battery material will be compacted to obtain the prototype of the pole piece. 

Roll surface cleaning is very important to ensure production yield!

 

The traditional way of cleaning rolls, using manual wiping rolls, there are many disadvantages. The use of lasers to complete the rolls of high-quality cleaning is imperative.

 

In the new energy lithium battery manufacturing process, pressing the battery electrode roller is one of the key steps.

 

Through roller pressing, the active material on the pole piece (usually powdered positive and negative materials) is compacted to obtain the desired shape and thickness of the pole piece, and keep the surface smooth and flat. The compaction density and thickness of the pole piece, as well as the bonding strength of the active material to the collector foil, have a direct and important impact on the physical properties, electrochemical performance, and safety of the battery.

 

This is a very strict and precise processing requirement, the roll has become one of the indispensable process equipment on the lithium battery production line, and the roller surface must achieve a certain degree of finish. Otherwise, in the battery pole piece roll pressure process, the roll surface easily adheres to the material powder, not only easily causing the subsequent roll pressure of the battery pole piece quality abnormality but also increasing the wear and tear of the roll.

 

The traditional cleaning method is mainly used to manually wipe the rollers, this method is difficult to clean, low efficiency, environmental pollution, and other issues. For the current fierce competition among lithium manufacturers, there is an urgent need for more efficient and environmentally friendly roll cleaning technology, which in turn improves the overall efficiency of the lithium battery production line and product quality.

 

Laser cleaning as an emerging cleaning method for roll cleaning has brought revolutionary changes. By hitting the laser on the roll surface, the graphite and other surface attachments attached to the roll absorb the laser energy after vaporization, thus separating from the substrate to achieve the purpose of cleaning. This way, high efficiency, environmental protection, no downtime, and no contact cleaning, with manual wiping rollers can not be compared with the advantages.

 

The most critical is that the artificial wipe roll is cleaned at intervals, the surface of the roll will certainly exist in the carbon powder accumulation situation, while the laser wipe roll is real-time cleaning, will not accumulate carbon powder, real-time protection of equipment is always in a “clean” state of operation, for the production of quality enhancement help!

 

For lithium battery production process roll cleaning laser applications and customer-specific needs, MAX laser roll laser cleaning solutions, multiple lasers, controllers, etc. into one, easy to integrate with the customer's equipment, the program has been a head of lithium battery manufacturers on-site application.

The solution integrates high-performance lasers, galvanometers, and other external optical systems, as well as motion control systems. Through spot shaping and special processing, it can achieve efficient and high-quality roller cleaning, while ensuring the cleaning quality, improving production line efficiency and production flexibility.

 

The core light source in the program is equipped with a high-performance MOPA medium and high power laser, which has the characteristics of high energy, high peak value, high beam quality, etc., which greatly improves the cleaning efficiency; at the same time, the output spot capacity can be customized, as well as the adjustable pulse width and optional energy distribution, which makes it easy to adapt to the needs of specific application scenarios: through the setting of the laser's parameters, the laser can be accurately controlled to clean the object and the area, remove the various coatings of different thicknesses and compositions on the roll surface without damaging the substrate.

 

In this program, Baochenxin is also a one-stop with vibrating mirrors and motion control systems, etc., in order to achieve remote, accurate, efficient, and flexible cleaning, in a terminal customer site, running line speed of about 100m/min.

 

In addition, the solution does not require manual wiping of rollers by hand, does not require the use of chemical solvents, has no environmental pollution, and the entire cleaning process is reliable, stable, and safe, without any harm to the human body, and in line with the requirements of modern industrial green production.

 

As a green cleaning method, laser cleaning in industrial manufacturing has an increasingly wide range of applications. In addition to roll cleaning, in the lithium battery production and manufacturing of the whole process section, almost all have laser cleaning applications, such as die-cutting section of the pole ear cleaning, core assembly section of the liquid injection hole cleaning, pole piece cleaning, as well as module / PACK section of the pole column cleaning, rework process in the blue film cleaning and so on.