Dynamic Equilibrium Strategy of Power Battery Closed-Loop Supply Chain Based on Stochastic Differential Game

The industrialization of new energy vehicles has accelerated, and the recycling industry driven by a large number retired power batteries exploded rapidly. How to control deal with decommissioned balance economic environmental benefits become an urgent problem be solved. Considering influence uncertain interference factors, dynamic equilibrium strategy battery closed-loop supply chain members composed leading manufacturer, recycler, cascade utilization enterprise was studied. (1) This paper describes stochastic evolution process effort level using Ito constructs differential game model system combined cost-sharing coordination mechanism. (2) Based on theory, optimal profit function participants is given, each participant obtained. (3) In order grasp statistical characteristics level, random are revealed. (4) Combined numerical example, relevant parameters analyzed. results found that increase proportion manufacturer sharing innovation cost enterprise, will improve, profits recycler significantly, decrease slightly, overall increase. mechanism conducive ensuring steady development effectively improving efficiency industrial resources.