According to iiMedia Research, China's production and sales of new energy vehicles exceeded one million in 2018. China's production and sales of new energy vehicles have ranked first in the world for three consecutive years. China has formed a complete new energy passenger vehicle industry cluster. However, China's new energy automobile industry is still not perfect. Charging devices and license plates have become the subject of most intense public concern. According to iiMedia Research, nearly 70% of new energy vehicle owners said that the mileage of new energy vehicles decreased to different degrees. Car owners are most dissatisfied with the endurance of new energy vehicles. Lack of charging pile construction is the main reason why consumers do not choose new energy vehicles.