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Construction of charging piles for new energy vehicles accelerated

New energy vehicle power batteries mainly realize energy replenishment through charging and battery replacement. According to https://www.zhuhe-energy.com/ of different charging technologies, charging piles can be divided into DC piles and AC piles. DC charging piles, commonly known as "fast charging", can provide enough power to meet fast charging requirements. The AC charging pile, commonly known as "slow charging", only plays the role of controlling the power supply, and the charging speed is relatively slow. DC fast and full type: according to the number and structure of charging guns According to the power, DC charging piles are mainly divided into 30kW, 60kW, 120kW, 150kW, 180kW, 240KW, etc., and higher power charging piles. In addition, DC charging piles can also be divided into single guns and double guns according to the number of charging guns; according to the structure, they can be divided into one-piece type and multi-body type. DC fast and full type: according to the number and structure of charging guns According to the power, DC charging piles are mainly divided into 30kW, 60kW, 120kW, 150kW, 180kW, 240KW, etc., and higher power charging piles. In addition, DC charging piles can also be divided into single guns and double guns according to the number of charging guns; according to the structure, they can be divided into one-piece type and multi-body type. Vehicle-to-pile ratio gradually decreases The vehicle-to-pile ratio is the ratio of the number of new energy vehicles to charging piles. The lower the ratio, the more sufficient the supply of charging piles. By the end of 2022, China's domestic vehicle-to-pile ratio will be 2.5:1. The Ministry of Industry and Information Technology of China plans to achieve a vehicle-to-pile ratio of 2:1 in 2025 and a vehicle-to-pile ratio of 1:1 in 2030. In recent years, the vehicle-to-pile ratio has gradually decreased, from 3.2:1 in 2018 to 2.5:1 in 2022, and the number of new energy vehicles and charging piles is increasing. The construction progress of charging piles in Europe and the United States lags behind, and the ratio of vehicles to piles is much higher than that in China. Although the number of charging piles in Europe and the United States has maintained rapid growth, it still lags behind the growth rate of new energy vehicles, resulting in a high vehicle-to-pile ratio. The vehicle-to-pile ratios in Europe in 2019, 2020, and 2021 are 8.5, 11.7, and 15.4, respectively, while those in the United States are 18.8, 17.6, and 17.7

High-voltage fast charging is the future development trend of public charging piles

Fast charging can be divided into high-voltage fast charging and high-current fast charging. High-current fast charging has higher requirements for heat dissipation, while high-voltage fast charging can improve safety and energy conversion efficiency. Therefore, high-voltage fast charging has won the favor of most pile companies and car companies. At present, the charging pile industry is in the process of developing from low voltage/low rate to high voltage/high rate.

Installing home charging piles has become the mainstream method

Home charging piles use free time to charge the car, which is more convenient than going to the charging station. The vehicle is fully charged every night while sleeping, and the home charging cost is lower. Home charging is slow charging, slow charging is the most friendly to the battery, the battery decays very little and the power is more durable, and home slow charging is safer.