In the construction of electric cars today, almost only electrolyte-supported lithium-ion batteries are used. Up to now, alternative combinations such as solid-state batteries or other chemical components have not yet reached the industrial maturity required.
Lithium-ion battery production is a very elaborate and sensitive process incurring very high material and energy costs. For this reason, the manufacturing process must be very efficient with high batch numbers and minimum rejects. The top objective of the battery sector is to achieve a high gravimetric energy density (Wh/kg) and therefore also high milage (range) which is directly reflected in the range of electric cars. Furthermore, the aim is to develop and build battery cells which comply with the high demands of the automobile industry in terms of safety, performance and service life. The laser as a tool offers unsurpassed benefits in this respect in questions of process reliability, precision and efficiency.
Three types or formats of lithium-ion batteries are used in electromobility. The functioning principle is essentially the same in all types. The main differences are in the design, requirements and materials used.
Would you like to know how we can provide your production with optimum support on your path to electromobility? Benefit from our extensive expertise as a technology supplier for OEM, TIER, cell manufacturers and integrators. Furthermore, TRUMPF is a partner of numerous public and private research initiatives. We develop new technological solutions for battery production together with them.
Whether it is a laser with a green wavelength for welding Cu materials, beam formation (BrightLine Weld) for welding aluminum and copper with no spatter or pores, or special sensor systems for quality assurance and process monitoring – TRUMPF offers countless innovative manufacturing solutions for the production of battery cells. Benefit from our technology packages with a wide selection of beam sources, optics, sensor systems and application expertise.
The TRUMPF BrightLine Weld technology is the key to low-spatter laser welding of busbars, soft connectors, can-caps or module housings with high power IR lasers. Furthermore, our TruDisk lasers with green wavelength are intended for highly reflective materials such as copper – up to 2 kW continuous wave or pulsed up to 400 W average power. Defined and constant welding depths can be executed and provide reproducible processes. During heat conduction welding, you also benefit from minimum heat input into the workpiece. Our sensor systems (VisionLine OCT and welding depth monitoring) were specially developed for automated and highly productive manufacturing. This means you can always rely on complete documentation and traceability.
Our TruDisk laser design achieves optimum laser utilization in terms of time sharing and redundancy operation with several laser outputs for each laser. Furthermore, you benefit from consistent laser power on the workpiece thanks to our laser power control.
We see ourselves as your application consultant and enabler for new production opportunities. Benefit from our consolidated industrial expertise and our decades of experience as a laser pioneer.
Take advantage of a consultation by our experts and our worldwide service network. Whether you need service or application development – we are where you are. For example, TRUMPF experts and algorithms monitor your lasers to ensure anticipatory maintenance, especially for sensitive and large-scale production lines, with the Condition Monitoring Service.
Spanning an area of over 4,000 m², the TRUMPF Laser Applications Center in Ditzingen is one of the largest laser application centers in the world. Using your actual component, our application specialists and industry experts will support you during application development and optimization in the Laser Applications Center – with our extensive portfolio of versatile laser processing systems.
