Research On Location Selection Of Reverse Logistics Network Facilities For New Energy Vehicle Power Batteries

With the increasingly serious problems of energy shortage and environmental pollution,new energy vehicles with energy saving and emission reduction characteristics have gradually become the mainstream,and China is also vigorously promoting the development of new energy vehicles.As the core component of new energy vehicles,the power battery has a limited service life and will be retired when the battery capacity decays below 80%.Retired power batteries still have high utilization value,and the maximum utilization of resources can be achieved through cascade utilization and recycling.At the same time,retired power batteries contain a large amount of heavy metals,which will cause serious environmental pollution if they cannot be properly disposed of.China is about to enter the stage of largescale decommissioning of power batteries,but the recovery of power batteries is still in the exploratory stage and lacks an effective reverse logistics network system.Therefore,this paper takes the power battery of new energy vehicles as the research object,and studies the facility location of its reverse logistics network to promote the effective recycling of retired power batteries.First of all,this paper analyzes the research of domestic and foreign scholars on reverse logistics,new energy vehicle power battery recycling and reverse logistics network construction,and points out the shortcomings of current research.Then,the basic characteristics and recycling status of power batteries are expounded,and the basic theories related to reverse logistics are summarized to lay the foundation for subsequent research.Secondly,this paper introduces three modes of new energy vehicle power battery recycling in detail,and analyzes and compares the scope of application,advantages and disadvantages of each recycling mode.After that,this paper selects evaluation indicators from three levels of economy,technology and society and conducts quantitative analysis,uses the entropy weight method to obtain the weight of each indicator,and then uses the Topsis model to evaluate the three recycling modes.The results show that the third-party recycling mode is more in line with the my country’s current demand for power battery recycling.Thirdly,considering the uncertainty of recycling quantity and recycling quality,this paper constructs a four-layer new energy vehicle power battery reverse logistics network facility location model with various types and multi-resource utilization methods based on the thirdparty recycling model,with the goal of minimizing the total cost.In terms of model solution,this paper introduces triangular fuzzy numbers,uses fuzzy chance-constrained programming to transform the model into a deterministic model,and uses LINGO11.0 software to calculate the optimal solution.Finally,the case data is collected and substituted into the model,and the solution for the location selection and logistics distribution scheme of Shenzhen new energy vehicle power battery reverse logistics network facilities is obtained,which verifies the validity of the model and provides solutions for optimizing the power battery recycling system in Shenzhen.