Analysis and Evaluation of Battery Pack Inconsistency Based on PSO-Level Difference Maximization Combination Weighting

In this paper, a new method of inconsistency evaluation is proposed, which combines subjective and objective weights. The improved subjective weight of AHP and the objective weight of E-Critic are synthesized by using the level difference maximization method based on PSO optimization, and the comprehensive weight is obtained. Finally, the score standard deviation is used as the threshold to evaluate the inconsistency. This paper selects the data of decommissioned lithium iron phosphate battery pack, extracts several characteristic indexes, and evaluates the consistency with this method. It is proved that this method of fusion weight is reasonable compared with each single-weight method. Finally, the validity of this method is verified by another battery cycle data.