Jiangsu Contemporary Amperex Technology Limited

Chenlin Yang

Li Tan

Qifan Zou

This application describes a battery equalization method and device, and a battery management system. The battery equalization method includes: obtaining a first closed circuit voltage of N cells in a duration of a pulse charge current and a second closed circuit voltage of the N cells in a duration of a pulse discharge current, where the N cells constitute a battery, and N is a positive integer; determining a relationship of SOC values between the N cells based on the first closed circuit voltage and the second closed circuit voltage; and performing charge equalization on target cells, where the target cells are determined from the N cells based on the relationship of SOC values.

Battery equalization method and device, and battery management system with closed circuit voltage measurements obtained by charging and discharging pluses

Growing community of inventors

Zhangzhou, China

Chenlin Yang