Sustainable Mining and Metallurgy

To improve the recycling efficiency of new energy vehicle power batteries and address the issues of uneven cost-sharing and low recycling rates,this paper constructed a tripartite game model involving new energy vehicle manufacturers, power battery suppliers, and third-party recyclers, focusing on cost-sharing mechanisms. It analyzed three cost-sharing scenarios: third-party recyclers bearing the recycling costs alone ( Scenario N),manufacturers sharing the recycling costs ( Scenario M),and suppliers sharing the recycling costs (Scenario S). The study also explored the impact of key parameters on the decision-making of the game participants. The research findings indicate that: ① Within a certain range, increasing the cost-sharing ratio can significantly enhance the recycling rate and optimize the overall profit of the supply chain; ② Recycling losses negatively affect power battery recycling,reducing recycling efficiency and profits; ③ From the perspectives of economic and environmental benefits,the supplier costsharing scenario (Scenario S) demonstrates significant advantages. This paper provides a theoretical basis for formulating recycling strategies for new energy vehicle power batteries and offers references for related policy design.