Laser technology plays an indispensable role in the production of batteries for electric vehicles. Thanks to their precision, efficiency and flexibility, lasers offer a number of advantages that contribute to improving the performance and lifetime of EV batteries. In this article, we look at the key benefits of lasers in EV battery manufacturing and how these technologies are contributing to the development of EVs.
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HAZ reduction
Weld the most sensitive parts with lasers that minimize the thermal impact on the material. -
Ensuring constant production quality
Use Coherent ARM lasers to reduce weld porosity, reduce spatter, and get excellent accuracy and repeatability throughout the process. -
Increase production
Increase production productivity by reducing cycle time, eliminating the need for repairs and reducing the need for post-processing of finished parts.
Benefits of Coherent lasers in electric vehicle battery manufacturing
Welding of dissimilar materials
Welding of heterogeneous materials, such as aluminium and copper, with excellent electrical conductivity, high mechanical strength and precise control of penetration depth.
Highlight ARM Fiber Laser / Coherent Powerline FL / Process Laser Heads
Welding copper
Efficiently weld copper without process instabilities using the ARM fiber laser and achieve cost, reliability and practical advantages over green lasers.
Highlight ARM fiber laser / Coherent Powerline FL
Welding of large batteries
High-speed production of joints for large cylindrical battery components with minimal heating of the heat-stressed zone, no spatter and precise control of penetration depth.
Highlight ARM fiber laser / Coherent Powerline FL / Process Laser Heads
Welding of battery housings
High speed, hermetically sealed welding of prismatic battery cell sheet metal housings, bushings, contacts and safety valves with minimal spatter, cracking and porosity.
Highlight ARM fiber laser / Coherent Powerline FL / Process Laser Heads / UW Systems
Foil welding
Weld foil to connection strips with excellent weld penetration, minimal spatter and reduced heat damage using ARM single-mode fiber lasers.
Highlight ARM Fiber Laser / Coherent Powerline FL / Process Laser Heads
Welding of battery cooling plates
Welding large aluminum or polymer cooling plates in battery trays with high speed and reliability.
Compact Evolution / Process Laser Heads / Highlight ARM Fiber Laser
Busbar welding
Busbar welding with excellent control of part heating, penetration depth and weld width, whether steel, copper, aluminum or a combination of materials.
Highlight ARM Fiber Laser / Highlight FL / Coherent Powerline FL / Process Laser Heads
Removal of busbar insulation layers
Laser removal of polymer insulating coatings with high speed CO2 lasers without damaging the underlying conductor.
Powerline C / Powerline Avia LX
Welding of battery casings
Filler-free welding of aluminum modules and battery casings using ARM laser minimizes deformation, porosity, cracks and spatter.
Cutting electrodes and separators
Precision cutting of coated battery electrodes (anodes/cathodes) and separator materials (including ceramics) with a small heat affected zone.
Powerline C / Diamond J / Hyperrapid NXT
Thin film electrolyte sintering for next generation solid electrolyte Li-ion batteries
Excimer pulsed laser deposition of electrolyte thin films for lithium-ion batteries provides dense and stoichiometric layers for improved storage and charging.
Source: coherent.com
