Charging Techniques in Lithium-Ion Battery Charger: Review and New Solution

Abstract

In this paper, a new hybrid charging algorithm suitable for Li-ion battery is proposed with the aim of reducing refilling time and improving battery life cycle. The hybrid algorithm combines constant current constant voltage (CCCV) and pulsed charge (PC) techniques to obtain the suitable way for fast charging and ensure a long lifetime. A step by step execution of the new algorithm is presented. Moreover, the algorithm is implemented using bidirectional DC to DC power converter with Simulink. The charger is able to detect initial battery state of charge (SoC) and take the suitable way to charge it. The included results show the obtained performance of the proposed technique in terms of battery refilling time reduction to return to top of-charge and improving its cycle life.