Highly efficient laser solutions for industrial material processing in the battery and e-mobility sector – this is the focus of Laserline’s presence at the Battery Show Europe 2024. Key topics include new high-efficiency diode lasers for economical and environmentally friendly battery drying and blue diode lasers for the effective processing of copper components for electrical drive technology and power electronics.
Diode laser specialist Laserline will be presenting energy-efficient laser applications for industrial material processing in the field of electromobility and battery production at the Battery Show Europe 2024 (June 18-20 in Stuttgart, Hall 8, Stand 8-A57). Highlights of the trade fair appearance include the LDF 30,000 DR and LDF 15,000 DR diode lasers – two new high-efficiency laser systems that support a diode laser-based drying process for the efficient, economical and environmentally friendly production of lithium-ion batteries.
The process enables the production of anodes and cathodes in a roll-to-roll process for the first time and thus offers an alternative to the market-dominating convection drying in electric or gas-powered continuous ovens. Compared to a conventional GigaFab drying line, it ensures operating cost savings of 28 percent and halves the required production area, thus representing an important milestone on the way to CO2-neutral and competitive battery cell production.
The two new models in the Laserline LDF series are predestined for area applications thanks to their precise, homogeneous top-hat beam profile with a width of up to 1.4 m and offer output powers of 15 or 30 kW. The lower power class can also be upgraded to 30 kW directly in the field after the process has been successfully established. The new high-efficiency lasers are particularly impressive thanks to their contribution to reducing process-specific CO2 emissions. With an electrical efficiency of over 50 percent, they consume significantly less energy than conventional industrial lasers and therefore not only reduce operating costs, but also contribute more than any other laser tool to climate and environmental protection.
© Laserline
Laserline will also be providing information about its portfolio of solutions in the field of high-power blue diode lasers at its stand. One of the main applications is the welding of copper components, for example in electrical drive technology or power electronics. Its wavelength of 445 nm is absorbed by copper and copper alloys ten times better than infrared radiation, which ensures exceptionally quiet melting baths without the formation of pores. A new application that will be presented for the first time is the removal of insulation layers on copper conductors using blue lasers. This utilizes the excellent absorption properties of short wavelengths in carbon compounds.
The highlight of the product range are the world’s first commercially available blue diode lasers with 4 kW CW output power, which open up new areas of application, such as the deep welding of inverter assemblies. The most compact version of blue high-power diode lasers will be presented at the trade fair stand: The LDMblue lasers are available with CW output powers of up to 2 kW and are particularly easy to integrate into machine and system concepts thanks to their space-saving 19″ format (7 U).
With its reduced, adaptable heat input, laser welding is also extremely suitable for industrial material processing tasks as pure laser beam welding or using welding filler materials, such as those used in the production of battery boxes. In addition, the diode laser process supports numerous beam shaping options, with the help of which the power input can be individually adapted to the respective component. As a result, there is less hot cracking.
An addition of welding consumables as cold or hot wire will be presented at the trade fair stand, which, in addition to bridging tolerances, offers further advantages such as the optimization of the welding speed and the mechanical-technological properties. Laserline demonstrates the advantages of the interaction between laser technology and filler metal feeding – such as reduced reworking – using battery box profiles.
Background
Laserline GmbH, based in Mülheim-Kärlich near Koblenz, was founded in 1997. As a leading international manufacturer of diode lasers for industrial material processing, the company has become the epitome of this innovative technology and can look back on more than 25 years of company history. More than 7,500 high-power diode lasers from Laserline are currently in use around the world, proving their efficiency in a wide variety of processes and applications. Laserline currently employs around 400 people and has international subsidiaries in the USA, Mexico, Brazil, Japan, China, South Korea and India.
