Sliding Mode Observer Design for Battery State of Charge estimation

In this paper, Lithium-Ion battery is modeled as a second-order RC Equivalent Circuit Model (ECM). The battery has been analysed and physically simulated by a software using infinite dimensional equations (Comsol) to get realistic data. The latter has been used to estimate the parameters of this model. Furthermore, the battery State of Charge (SOC) is then estimated based on an improved Sliding Mode Observer (SMO).