Concept for modelling the influence of electrode corrugation after calendering on stacking accuracy in battery cell production

摘要

Due to the complex process chain in battery cell production, effects of processes on subsequent processes must be evaluated. As challenge in calendering electrodes, corrugation can be observed depending on adjusted parameters. To evaluate the corrugation with regard to the subsequent stacking process accuracy, a concept for modelling the process chain calendering - separation - single sheet stacking is presented. First, an experimental approach for modelling the calendering impact on the electrode sheet geometry after separation is suggested. Finally, a FEM simulation approach for the single sheet stacking process is presented, which is suitable to model impacts from previous processes.