What happens when an electric car is charged at high temperatures

Recently, the weather across the country has been very hot, especially in North China, the outdoor temperature has reached 40 degrees Celsius, and the surface temperature has reached 60 degrees Celsius. The car was exposed to the sun, and the surface temperature of the car even exceeded 70 ℃.

The continuous high temperature has to make people worry about the dangers of charging electric vehicles in high temperature weather. For this reason, Mottcell will explain in detail to you to avoid the occurrence of safety problems. Reduce potential hazards.

Charging the electric vehicle at high temperature will aggravate the water loss of the battery. When the electric vehicle is running, the battery temperature can even reach more than 70 ℃. If they charge the battery, it will increase the water consumption of the battery, reduce the service life of the battery, and increase the risk of rolling battery. Electric vehicle charging environment requirements are relatively high. Electric vehicle owners need to choose a well-ventilated indirect sunlight area, stop charging, prohibit exposure to the sun, or charge in a sultry environment, which can easily make the battery heat out of control and cause spontaneous combustion accidents.

Double high temperature will easily cause the battery to crack and deform. A lot of heat will be generated in the process of riding an electric bicycle. Even if the electric bicycle has just stopped, the battery itself is still in the non-stop heating stage. In addition to the high temperature weather, if the electric bicycle is charged immediately, double the amount of heat the high temperature often makes the line temperature worse, the motorcycle overheats, and even causes the battery to crack and deform, which leads to circuit failure and spontaneous combustion. Extended information: The temperature of the battery in the environment exceeds 60 °C, and as the battery heats up, the lithium battery is overheated. The danger of burning and explosion, but the possibility of spontaneous combustion of electric vehicles is very small, if the main cause of the accident is the aging of the line and short circuit. To avoid the risk of battery damage, or even spontaneous combustion. The battery is very sensitive to temperature during use, and the operating temperature range of the lithium battery is -20~60℃.

Electric vehicles need to be better maintained. Both the vehicle itself and the charging unit overheat and are equipped with a BMS system to control voltage and power and coordinate the demand and supply balance of the vehicle. In theory, electric vehicles can be safely charged, but it does not rule out hazards such as line aging in high temperature environments. The correct way is not to stop charging the electric vehicle immediately, and stop charging first after the battery has cooled for more than half an hour. In addition, when the charging turns green, stop charging as soon as possible. Pay attention to the charging should choose a ventilated and cool environment, and follow the regulations every day. The mileage strictly controls the charging time.