Comprehensive Evaluation Model of Decommissioned Battery for Electric Vehicles Based on AHP-CRITIC

With the rapid development of new energy vehicles in China, the trend of decommissioning of power batteries has arrived, and the stagger utilization of decommissioned power batteries has become the focus of the industry. Once a power battery is decommissioned, the retired power battery needs to undergo relevant tests and evaluations before it can be carried out the cascade development and utilization. In this paper, we creatively propose the AHP-CRITIC method. Firstly, according to the health characteristics of the decommissioned power batteries, the improved K-means cluster analysis is used to analyze the curve characteristics of the decommissioned power batteries. Secondly, for the economic indicators of decommissioned batteries, we take advantage of the AHP-CRITIC method to evaluate the decommissioned power batteries. Then, a comprehensive evaluation model that synthetically considers the health characteristics and economics of decommissioned power batteries is established. Finally, an example is given to verify the effectiveness of the proposed evaluation model.