A novel strategy for emergency power supply by electricity migration in cooperation with a battery-swapping electric vehicle service

In recent years, battery electric vehicles (BEVs), which do not emit any CO 2 , have attracted considerable attention globally as a countermeasure against global warming. The plug-in BEV, a common BEV variant, is limited by the long charging time. The battery swapping electric vehicle (EV), however, allows for a relatively short fulfilling time in terms of electricity as its battery can be swapped for a pre-charged spare battery at a battery swapping station (BSS) in a few minutes. This paper presents an examination of the use of stored electricity as a power supply in emergencies. We propose both electricity migration for maintaining a sufficient amount of electricity among BSSs and methods that enable the reduction of the overheads incurred by EV users. The performance evaluations that validate the efficacy of the proposed methods are detailed, and the future research scope is indicated.