$Implementation of a Coulomb counting algorithm for SOC estimation of Li-Ion battery for multimedia applications

Abstract

Lithium-Ion based batteries are quite p opular thanks to their good electrical characteristics but they risk to be damaged when they are overcharged or deeply discharged. In order to avoid these problems, Lithium-Ion batteries require an accurate state of charge determination to extend their lifetime and hence protect the equipment they supply. In this paper we propose a solution based on an enhanced Coulomb counting method which we have implemented on a hardware platform based on the PIC18F MCU Family. The results are promising. The proposed system is supported by IntelliBatteries and integrated on its products.