The strategy of recycling electric vehicle batteries from the perspective of circular economy in Taipei city

This research focuses on the reutilization strategy and plan of the electric vehicle battery as the main body, if the battery is replaced. Under different development scenarios of electric vehicles, there will be uncertainty in the amount of electric vehicle batteries to be replaced later. At the same time, the service life of electric vehicle batteries may be slightly different in different years of production. Therefore, it is necessary to understand through data collection and actual interviews. Regardless of the number and the original service life, as long as it is judged that the battery must be replaced, if it can enter the reuse system and reuse it as an energy storage device in a different way, it will immediately show the extended battery energy service. Benefits, reduce environmental impact, improve resource utilization efficiency, etc.After the battery pack of the electric locomotive is replaced after regular maintenance, it may be necessary to distinguish and understand different battery states again. If it can be used again, there will be differences in the battery energy storage methods required for different battery usage habits derived from different solutions (for example, whether it is frequently charged and discharged, and whether it is more necessary to output electric energy stably). In addition to consumption habits, there are also uncertainties and situations in the use demand.The research methods that need to be used include: material flow analysis (MFA), life cycle analysis (Life cycle analysis LCA), etc. In the end, we can put forward the concept of circular economy, hoping to establish a plan or model that has economic feasibility, so that the plan may really be implemented. Therefore, in the evaluation of the program, the service of the battery is viewed from the overall life cycle, and the indicators that can be provided include resource service efficiency, energy service efficiency, and environmental impact.