Passive Cell Balancing using PI Controller

The increasing demand for clean transportation has propelled research and development in electric vehicles (EVs), with a crucial focus on enhancing battery technologies. This paper presents a novel approach to battery management by implementing a passive cell balancing system for lithium-ion battery packs. The proposed system employs a Proportional-Integral (PI) controller to address voltage imbalances among individual cells, aiming to improve battery life and longevity without the need for a complex active control circuit. The research involves a comprehensive review of existing passive balancing techniques, followed by an optimization process to integrate the optimal approach into a real-world battery pack. The study explores performance evaluation under diverse conditions, considering factors such as system capacity retention, energy efficiency, and overall reliability. Safety and thermal management considerations play a crucial role in the implementation, ensuring the longevity and stability of the lithium-ion battery pack. The primary objectives of this research are to extend the operational life of lithium-ion batteries, reduce maintenance costs associated with battery management, and contribute to sustainable energy solutions. The findings from this study are expected to benefit both the environment and consumers by promoting efficient and reliable electric vehicle technologies