In 2022, the hybrid PIML methodology was used by Shi et al. to model the degradation trend and posteriorly obtaining a RUL prediction for LIBs . This was achieved by combining a physicsbased calendar and cycle aging (CCA) model with a long short-term memory (LSTM) layer. The main advantage of using the PIML approach in this case, was the accurate prediction of the capacity fade by learning the effect of the different operation stress factors on the battery's health condition and degradation.