An “electrochemical battery cell model” considers the influence of the distribution of properties with regard to performance and the corresponding fluctuations. In addition, a “surrogate model” is inserted to ensure the conversion of structural parameters into battery model parameters. The models are then linked in a so-called “multi-level simulation”. The developed models are to be used to carry out prototype simulation runs on selected production scenarios. Overall, improved manufacturing strategies with regard to quality, reproducibility and costs are to be derived from these results.