Work

A Comprehensive Review of Equalization Techniques for Reconfigured Second-Life Battery Systems

Year: 2025

Type: article

Abstract: As the demand for second-life lithium-ion battery applications continues to grow, efficient cell equalization has become essential to mitigate parameter inconsistencies and extend system longevity. Owing to their diverse origins and varying aging paths, second-life batteries exhibit significant parameter dispersion, which poses distinct challenges. In light of these issues, this paper presents a comprehensive review of passive, active, and dynamic equalization technologies. It analyzes the circuit topologies and control strategies associated with each method, with a particular focus on their applicability to second-life battery systems. Furthermore, emerging trends toward intelligent, modular, and adaptive equalization are discussed.

Source: Batteries

DOI: 10.3390/batteries11090327

Authors: Jiajin Qi, Yuefei Xu, Shizhe Chen, Jinggui Shen, Ranchen Yang, Huajun Xu

Institution: Zhejiang University of Science and Technology

Language: English

Topic: Advanced Battery Technologies Research

Subfield: Automotive Engineering

Field: Engineering

Domain: Physical Sciences

SDG: Affordable and clean energy

Open Access status: gold

Estimated APC paid: $3,258