Impact of EVs fast charging technology on vehicles

China [CN]

Overview: Although the fast charging technology of new energy vehicles is fast, does it have an impact on the stability of new energy vehicles?

Technical route 1: high-voltage fast charging High-voltage fast charging technology is widely used by other car companies except Tesla. The technical difficulty is not high, but the heat generation is large, and companies need to do a good job of heat dissipation of vehicle power batteries. After years of development, high-voltage fast charging technology has become increasingly mature and safety has been greatly improved. At present, the mainstream charging pile voltage is 400V, and Xiaopeng G9 can achieve a range of more than 200 kilometers in 5 minutes of charging through the 800V high-voltage SIC platform and 480-kilowatt high-power super charging pile on the vehicle side.

Technical route 2: high-current fast charging According to the formula of power P=voltage U*current I, any increase in charging voltage and current can improve the charging efficiency of electric vehicles, but according to Joule's law Q = I2Rt, the high-current fast charging route will cause the electrical system to heat up violently, and the heat dissipation requirements are very high.

As a leading company in the new energy cable industry, OMG's high-power liquid-cooled charging cables use liquid cooling technology. Through special structural design, the cables are kept in a constant low-temperature environment during the entire charging process, overcoming the thermal damage of the charging harness and charging pile, and have good heat dissipation capabilities. For detailed cable specifications, please visit: www.omgevcable.com