As a new green “black technology”, laser cleaning has always been one of the research hotspots in the field of industrial manufacturing. With the vigorous development of the new energy industry, the demand for lithium batteries has increased sharply, which also poses new tasks and challenges to the cleaning process in lithium battery manufacturing. In the past two years, under the strong promotion of the head laser enterprises, laser cleaning has been widely used in the manufacturing process of new energy batteries, and has moved from an industrial substitute to a dominant stage.
As a national high-energy laser technology enterprise, Baoyu Laser has always focused on the innovation and breakthrough of intelligent laser cleaning technology with the market as the guide and customer demand as the center. At the same time, it has been deeply expanding its application in the industrial field. Among them, in the lithium battery manufacturing process, Baoyu laser intelligent cleaning technology also provides “new ideas”, such as electrode cleaning, new energy battery shell cleaning, etc.
In the lithium-ion battery manufacturing process, before the electrode lug is welded, the coating in the area of the electrode lug to be welded needs to be cleaned to ensure the stability of the current collector in the battery. The methods of removing coating mainly include mechanical scraping, chemical cleaning and laser cleaning. Among them, mechanical scraping and chemical cleaning have weaknesses such as regular shutdown and replacement of consumables, easy to damage the pole piece, and difficult to ensure the cleaning of the coating.
Unlike traditional cleaning methods, Baoyu Laser has successfully explored the critical parameter value of foil damage and coating non-residue. The intelligent laser cleaning technology and equipment launched by Baoyu Laser have the advantages of green environmental protection, high cleanliness, low cost of non-consumable materials, etc. While effectively removing the surface coating of products of different cleaning sizes, it can also improve the foil performance and ensure the stability of the battery.
Cleaning Of New Energy Battery Shell
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, when processing the new energy power battery shell, the drawing oil with high viscosity will be used to protect the surface of the workpiece from damage, but the drawing oil with high viscosity will cause serious oil contamination on the surface of the battery shell, and the carbon deposition and sintering caused by high temperature processing will make the surface of the workpiece extremely difficult to clean.
As a new type of green cleaning technology, laser cleaning is different from chemical cleaning and dry ice cleaning. The cleaning method is more green and environmentally friendly, and the cleanliness is high. It can effectively remove carbon deposits, oil stains, 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 launch of concepts such as “carbon peak, carbon neutral”, new energy vehicles have become not only a new concept vehicle, but also an important way to achieve “green water and green mountains”. In the future, new energy vehicles will have huge market potential to be tapped. As the key core of the accelerated development of new energy vehicles, lithium battery will put forward strict requirements for its manufacturing technology and equipment. As an advanced “optical” manufacturing tool, the application of laser technology in intelligent production lines will continue to increase.
About HGTECH : HGTECH is the pioneer and leader of laser industrial application in China, and the authoritative provider of global laser processing solutions. We have comprehensively arranged laser intelligent machine, measurement and automation production lines, and smart factory construction to provide overall solutions for intelligent manufacturing.