WiP Abstract: A Novel Strategy for Active Cell Balancing

Abstract

Cell imbalance in batteries results in the degradation of capacity delivery of the battery. Battery Management System (BMS) uses passive or active balancing techniques to counter this. The strength of a battery measured in terms of State- of-Charge (SoC), is limited by the capacity of its weakest cell leading to under-utilized cells and reduced lifetime. In this paper, we present a novel active cell balancing algorithm to minimize the number of transactions to transfer the capacity between the cells to achieve a balance among cells.