A Novel Active Online State of Charge Based Balancing Approach for Lithium-Ion Battery Packs during Fast Charging Process in Electric Vehicles
Abstract: Non-uniformity of Lithium-ion cells in a battery pack is inevitable and has become the bottleneck to the pack capacity, especially in the fast charging process.Therefore, a balancing approach is essentially required.This paper proposes an active online cell balancing approach in a fast charging process using the state of charge (SOC) as b