As an emerging green "black technology", laser cleaning has been one of the research hotspots in the field of industrial manufacturing. With the booming development of the new energy industry, the demand for lithium batteries has increased dramatically, and the cleaning process in the manufacturing of lithium batteries has also put forward new...
As an emerging green "black technology", laser cleaning has been one of the research hotspots in the field of industrial manufacturing. With the booming development of the new energy industry, the demand for lithium batteries has increased dramatically, and new tasks and challenges have been put forward for the cleaning process in the manufacturing of lithium batteries. In the past two years, under the vigorous promotion of the head laser enterprises, laser cleaning is maturely applied to the new energy battery manufacturing process, has been from the industrial alternative, towards the stage of domination.
As a national high-energy laser technology enterprise, Baoyu Laser always takes the market as the guide and customer demand as the center, focusing on the innovation and breakthrough of intelligent laser cleaning technology, while always deeply expanding its application in the industrial field. Among them, in the lithium manufacturing process, Baoyu laser intelligent cleaning technology also provides "new ideas", such as pole piece cleaning, new energy battery shell cleaning, etc.
Pole piece cleaning
In the lithium-ion battery manufacturing process, before the lug welding, it is necessary to clean off the coating in the area of the lug to be welded, in order to ensure the stability of the collector fluid inside the battery. The main methods to remove the coating are mechanical scraping, chemical cleaning and laser cleaning. Among them, mechanical scraping and chemical cleaning have the weaknesses of regular stopping and replacing consumables, easy to damage the pole piece, and difficult to ensure clean coating removal.
Unlike traditional cleaning methods, Baoyu Laser has successfully explored the critical parameter values of foil damage and coating non-residual, and launched intelligent laser cleaning technology and equipment, which are both green, high cleanliness, low cost without consumables, etc. While efficiently removing the coating on the surface of products of different cleaning sizes, it can also improve the performance of foil and guarantee the stability of the battery interior.
New energy battery shell cleaning
The cleanliness of the battery shell is one of the factors that determine the high energy density, service life and safety performance of the power battery. However, new energy power battery shell processing will use high viscosity stretching oil to protect the surface of the workpiece from damage, but the high viscosity stretching oil will cause serious oil contamination on the surface of the battery shell, and the carbon sintering caused by high temperature processing makes the workpiece surface cleaning exceptionally difficult.
Laser cleaning as a new green cleaning technology, different from chemical cleaning and dry ice cleaning, cleaning method is more green and environmentally friendly, and high cleanliness. It can effectively remove the carbon, oil, metal chips and other stains on the surface of the workpiece, and the surface is free of scratches and burrs after cleaning, thus improving the safety performance and service life of the power battery.
With the introduction of the concepts of "carbon peak and carbon neutral", new energy vehicles are not only a new concept of transportation, but also an important way to achieve "green water and green mountains". Lithium battery as the key core of the accelerated development of new energy vehicles, its manufacturing technology and equipment will put forward strict requirements. Laser technology, as an advanced "light" manufacturing tool, will continue to take up a high percentage of applications in intelligent production lines.
