Abstract

The increasing demand for higher energy storage capacity in electric vehicles (EVs) has necessitated the development of more efficient battery management systems (BMS) to extend battery life. This study proposes an inductor-based active cell balancing method to eliminate state-of-charge (SoC) imbalance in lithium-ion (Li-ion) battery packs. An inductive active cell balancing system is designed and analyzed for Li-ion batteries to achieve SoC equalization across battery cells, extending battery lifespan while minimizing energy losses. Active balancing outperforms passive methods with faster operation and higher efficiency, ideal for power-intensive applications. The designed model undergoes extensive simulations performed in the MATLAB/Simulink environment verify the effectiveness of the system in terms of balancing time, energy transfer efficiency and applicability. The single inductor-based structure reduces circuit complexity and component cost, increasing the practical use of the system. The findings contribute to the advancement of battery management systems, making energy storage solutions more reliable and effective.

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