TY  - EJOU
AU  - Wang, Qi 
AU  - Ge, Lantian 
AU  - Xie, Tianru 
AU  - Huang, Yibo 
AU  - Gu, Yandong 
AU  - Zhu, Tao 
AU  - Gao, Xuehua 

TI  - Design of Voltage Equalization Circuit and Control Method for Lithium-ion Battery Packs
T2  - Energy Engineering

PY  - 2025
VL  - 122
IS  - 2
SN  - 1546-0118

AB  - The active equalization of lithium-ion batteries involves transferring energy from high-voltage cells to low-voltage cells, ensuring consistent voltage levels across the battery pack and maintaining safety. This paper presents a voltage balancing circuit and control method. First, a single capacitor method is used to design the circuit topology for energy transfer. Next, real-time voltage detection and control are employed to balance energy between cells. Finally, simulation and experimental results demonstrate the effectiveness of the proposed method, achieving balanced voltages of 3.97 V from initial voltages of 4.10, 3.97, and 3.90 V. The proposed circuit is simple, reliable, and effectively prevents overcharge and overdischarge.
KW  - Lithium-ion battery; voltage balancing; control; single-capacitor method

DO  - 10.32604/ee.2024.059453