Electric Vehicle Batteries (EVB)

In lithium-ion battery production, the coating of metal foils to create pole pieces is a crucial step. The process must be carried out with utmost precision, with the results strictly monitored, in order to ensure the functionality and long-term reliability of each battery cell.

Using Kollmorgen direct drive technology, manufacturers are achieving coating accuracy of less than ±2 g/m2​ and layer thickness accuracy of less than ±1 μm — while also increasing coating width from 1.5 m to 2 m and production speed from 60 m/min to over 100 m/min.​

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Laser-welding technology is used to seal-weld stainless steel and aluminum shells, and to seal-weld the top cap to the shell of lithium-ion batteries. However, today’s standard trajectory-welding machines don’t offer the speed, accuracy and yield required to meet the rapidly growing demand.

Kollmorgen direct drive technology greatly enhances motion-control precision and increases trajectory-welding speed. Learn how these optimizations improve battery production efficiency and quality while boosting the welding yield rate to over 99% and reducing production costs.

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