Laser Cutting in the Production of Lithium Ion Cells

Due to the current limiting factor of the energy storage alternative electrical drive (e-drive) concepts are still under development and improved battery production techniques are needed. Different research groups are investigating the influence of several production processes on the quality of the produced lithium ion battery cell. One investigated process is the cutting of the cell electrodes. This paper presents investigations on the influence of a laser cutting process on the cutting edge quality of copper and aluminum based electrode materials. The different process parameters are examined and the main influencing factors on the quality are determined to ensure an optimized processing rate.