Towards State of Health Forecasting of Lithium-Ion Batteries

The terms state of heath (SOH) estimation, SOH prediction, SOH forecasting, and remaining useful life (RUL) prediction are crucial to distinguish. However, these terms are used inconsistently in the literature and their conceptualization is complex and vague until now. Thus, this chapter introduces a formal concept and definitions mainly for SOH estimation and SOH forecasting. Furthermore, the relevance of model transfer for SOH forecasting to a new battery type is motivated. This chapter also delimits the object of investigation and motivates key criteria SOH forecasting models shall fulfill.