Research On Reverse Logistics Network Planning Of Power Battery In Shanghai Metropolitan Area

Low carbon has become the consensus of human production and life.The development of new energy vehicles is in the ascendant.Power batteries also maintain a high growth trend in production and sales.At the same time,the retirement of power batteries is increasing due to the limitation of service life.Because the power battery contains a variety of precious metals,these precious metals if properly recycled,can form a recycling of resources;if the recycling treatment is improper,it will cause heavy metal pollution with great harm.Therefore,the recycling of retired power batteries is a professional and systematic work.It is necessary,feasible and demonstrative for enterprises,society and government to take precautions,plan as soon as possible,and carry out the research on the reverse logistics network planning of power batteries in combination with Shanghai metropolitan area.Based on the analysis of power battery recycling benefits,recycling methods and policies,as well as recycling modes and channels,the amount of retired power batteries is predicted by grey system theory and Stanford model,and a mixed integer programming model for the reverse logistics network of power batteries in Shanghai metropolitan area under uncertain environment is constructed,and the sensitivity analysis of relevant influencing parameters is carried out.Reverse logistics network optimization research includes two stages : the first stage needs to select distribution centers with collection and transit functions in the recycling points of each city,according to the principle of cost minimization,planning each distribution center in the first stage of retired power battery recovery;in the second stage,on the basis of the first stage,the site selection and transportation planning are carried out for the dismantling detection center,treatment center and waste landfill site.The dismantling detection center will evaluate the quality of the recycled battery.If the quality meets the requirements,it can be simply repaired and sent to the secondary market for gradient utilization.For the power battery that does not meet the gradient utilization,it will be uniformly sent to the treatment center for the next raw material extraction.If the power battery treated by the treatment center is completely scrapped and does not have the value of extracting raw materials,it will be sent to the waste landfill.In this paper,two objectives are considered for power battery recycling,namely,the minimum total cost and the minimum carbon emissions.Due to the uncertainty of quality,the model contains fuzzy parameters.Therefore,the model is clarified first,and then the lingo11.0 software is used to solve the problem.Combined with the relevant data of the first stage,the location of the reverse logistics network of the power battery in the Shanghai metropolitan area and the flow direction and flow of the power battery between the nodes are obtained.The research on the optimization of power battery reverse logistics network in Shanghai metropolitan area is helpful to the construction and development of power battery closed-loop supply chain in the Yangtze River Delta region,and has a high reference value for the recycling and internal circulation development mode of other regions and other resources.