Battery modelling

This chapter describes the development of simulation models of rechargeable batteries. Battery behaviour is a result of a complex interaction between various electrochemical and physical processes. Therefore, simulation models based on the mathematical description of these processes are a useful tool in optimizing the Battery Management System (BMS) used in portable devices. By applying all sorts of external electronic and thermal stimuli to the model during simulations, the designer of a BMS can not only investigate the development of the battery voltage and temperature, but also the course of each of the various reactions that take place inside the battery. This chapter discusses the development of battery models of this type, which have not yet been reported in the literature in this form.