The increasing demand for electrified power tools and automobiles confronts companies with complex challenges. In order to keep up with the high development speed in this industry, development and production times for prototypes, small and large series must be reduced. A critical process step along the process chain of battery module production is the electrical connection of the individual battery cells. Especially in the field of electromobility, large quantities of battery cells are interconnected in order to fulfil the necessary performance requirements. The interconnection of thousands of cells requires the same number of electrical connections per battery pole. For this particular application, laser beam welding is characterized by a high degree of automation and short process times.