Theoretical Background

To answer the research questions considering the current limitations of state of heath (SOH) forecasting methods, background from two fields is required: Given the importance of lithium-ion batteries (LIBs) as power source of battery electric vehicles (BEVs), first domain knowledge on LIB cells, their aging, and their composition to battery modules and battery packs is provided. Second, relevant basics of supervised machine learning (ML) models for regression are presented.