Good Combination Can Improve Battery Cells Utilization

A good combination can not only improve cell utilization, but also control monomer consistency, which is the basis of achieving good discharge capacity and cycle stability. However, the dispersion degree of ac impedance of single battery capacity will be intensified, which will weaken the cycling performance and available capacity of battery.

Comprehensive performance evaluation system based on cell screening with group, will be subjective grade of Delphi and objective measure of grey correlation degree, battery multi-parameter grey correlation model is established, and overcome the one-sidedness of single index as evaluation standard, the implementation of the power model of power battery performance evaluation, the evaluation results of correlation for screening of battery in the late group provides the reliable theory basis.

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