Is the equalization charging of lithium battery packs really effective in improving battery consistency?

As a new type of power technology, lithium battery packs must be connected in series to meet the voltage requirements. The unevenness of the monomer performance is not entirely due to the battery processing technology problems, even if the voltage and internal resistance of each battery are exactly the same when it leaves the factory. , After using for a period of time, there will be differences, which makes handling the technical problem of power lithium-ion battery charging an urgent technical problem. Lithium battery pack.jpg In order to solve the problem of consistency in the use of power lithium battery packs, this article proposes a way to implement a balanced charge management circuit. First, the characteristics of the single lithium battery are decomposed; then, based on the comparison of various equalizing charging theories, the partial shunt method is selected as the design idea, and the detailed circuit design is carried out. Repeated lithium battery pack charge and discharge tests stated that the balanced charge management circuit can effectively improve the consistency of lithium battery pack charging, improve battery pack performance, and prolong its service life. Due to the problem of inconsistent battery performance, the performance of battery packs in terms of utilization, service life, and safety is far less than that of single batteries. The lithium battery management system with efficient and balanced management function can greatly improve the overall performance of the power lithium-ion battery pack, effectively extend the service life of the lithium battery pack, and greatly reduce the use and maintenance costs of the entire vehicle. Provide technical support for the promotion of safe, efficient and practical electric vehicles. At present, the lithium battery management system has made certain progress in battery online monitoring, condition assessment, charging management, data communication, control strategy and so on. Disclaimer: Some pictures and content of articles published on this site are from the Internet. If there is any infringement, please contact to delete. Previous: What are the important factors involved in the safety of power lithium batteries