Laser welding is relevant for battery modules with prismatic and cylindrical cells for several reasons:
Precision and Accuracy: Laser welding provides high precision and accuracy during the welding process. This is crucial when dealing with the small and intricate components of battery modules, ensuring that the welds are precisely placed to meet the required specifications.
Heat Management: Laser welding allows for precise control of heat input, minimizing the heat-affected zone. This is particularly important for battery modules as excessive heat can damage the sensitive internal components, such as electrodes and electrolytes.
Speed and Efficiency: Laser welding is a fast and efficient process. In battery manufacturing, where large volumes need to be produced, the speed of the welding process becomes a significant factor in overall production efficiency.
Versatility: Laser welding is versatile and can be adapted to different cell formats, including prismatic and cylindrical cells. This adaptability is crucial in battery module assembly, where various cell configurations may be used.
Automation Integration: Laser welding can be easily integrated into automated production lines, enhancing overall manufacturing efficiency. Automation is essential for mass production and ensures consistent quality in the welding process.
Reduced Material Distortion: Laser welding minimizes material distortion, which is crucial for maintaining the structural integrity of the battery module. Distortion can affect the alignment of cells and compromise the overall performance and safety of the battery.
Clean and Precise Joints: Laser welding produces clean and precise joints, which is essential for creating reliable connections between battery cells. The quality of the welds directly impacts the overall performance and longevity of the battery module.
At EXOM Engineering we offer machine solutions to develop your welding application. Either with CW or pulsed lasers, we can present the advantages of laser welding in our laboratory. One example of a success story is our support to MotoSpirit. MotoSpirit is a university competition team affiliated with ESEIAAT (Escola Superior d’Enginyeries Industrial, Aeroespacial i Audiovisual de Terrassa). Since 2013, they have been participating in MotoStudent, an international competition sponsored by MEF (Moto Engineering Foundation). The primary objective of this competition is to develop, build, and test the prototype of a competition motorcycle, whether combustion or electric. Engineers from around the world compete by developing real engineering projects that are assessed from an industrial and technical perspective by a professional jury over a weekend. The competition culminates with a race at the Motorland Aragón circuit (Alcañiz), where the projects are tested by professional riders.
