Overview of possible methods of determining self-discharge

In the last decade batteries especially li-ion batteries spread in e-mobility and stationary energy storage industries. During their operation it is essential to provide a proper SOC and SOH estimation. There are several modelling options for estimating different state related values of a battery. In this paper the self-discharge phenomenon is in focus, the causes of the capacity fade, and the possibility to use this in estimators, and the possible connection to the useful lifetime of a battery. The authors therefore will summarize the research on this field from the recent years.