Residual Performance Evaluation of Electric Vehicle Batteries: Focusing on the Analysis Results of a Social Survey of Vehicle Owners

Abstract

In recent years, electric vehicles (EVs) have attracted much attention worldwide as an effective solution for realizing a carbon-neutral and decarbonized society. Since many batteries are generated over the lifespan of EVs, battery recycling has become an important issue. However, battery-manufacturing countries, including China, Japan, and South Korea (CJK), have yet to build a complete battery resource recovery system. In particular, owing to the lack of a reliable battery performance evaluation method, the residual performance of a battery cannot be accurately determined. Thus, based on the results of a social survey of EV owners, the present study develops a novel battery residual performance evaluation method that can easily predict the remaining battery performance based on the usage status of the vehicle, without relying on external electronic devices to measure the battery parameters. In addition, by clarifying the human factors deteriorating vehicle battery performance and proposing sustainable utilization methods for EVs, the present study demonstrates important research prospects for the protection of the environment and progress in the automobile industry.