At present, the industry has not yet reached a unified standard for the replacement of electric vehicles, and there are generally some differences in the position of the industry on the move of replacing electric vehicles. details as follows:

　　1. Battery model problem: There are many existing electric vehicle brands on the market, and the battery model of each model is different from the manufacturer, and the electric vehicles of various brands cannot be used in common.

　　From the perspective of development needs, the future is not only for taxis, but also for private electric cars. There is also a need for battery swapping. If you want private cars to also enjoy battery swapping services, it is necessary to resolve issues such as battery specifications and charging standards. The unification of battery specifications and charging standards should be accelerated to lay the foundation for future battery replacement in private cars.

　　2. Battery reserve problem: Each gas station in the third ring road in Beijing City serves 300 cars a day on average. If the station serves 200 electric cars a day, a charging station needs at least 100-150 battery reserves.

　　Different brands of vehicles have different battery materials. Take EV200 and BYD E6 as an example. EV200 uses Korean SK company’s ternary lithium battery, while BYD E6 uses self-developed ET-POWER iron battery, which is not universal. Batteries need to be stored.

　　3. The issue of popularization standards: the construction of power swap stations has accelerated the promotion of the popularization of electric vehicles nationwide. It is not surprising that electric vehicles are used across cities, but different brands of electric vehicles have different battery replacement methods, and automatic battery swap systems may not be universal.

　　At the same time as the construction of power exchange stations, a unified power exchange method and standard should be formulated to make cross-regional power exchange possible. Electric vehicles are rapidly spreading in cities, and with the construction of swap stations, electric taxis may replace fuel-fueled taxis. However, to realize the full popularization of electric vehicles, the government should speed up the unification of electric vehicle battery specifications, charging standards, and battery swap standards to lay the foundation for the popularization and cross-regional use of private electric vehicles in the future.