中文
ENGLISHPrecautions for High Temperature Continuous Electric Vehicle Charging
发布时间：2023-08-09 22:34:02 来源： 德国森泉蓄电池
Precautions for High Temperature Continuous Electric Vehicle Charging
The high temperature weather will continue. Recently, there have been situations in Taiyuan where electric vehicles are charging, such as circuit faults caused by high circuit temperature or motor heating, resulting in short circuits. On August 8th, staff from State Grid Shanxi Electric Power Company reminded users that charging electric vehicles in hot weather should not be arbitrary, and these precautions should be kept in mind.
Electric vehicles are equipped with a large number of chemical batteries, which are very sensitive to temperature. At high temperatures, the batteries have a risk of self ignition. Electric vehicles should be parked in a cool place as much as possible to avoid exposure to sunlight. Prolonged exposure to sunlight can cause damage to the vehicle's battery thermal management system. Charging under scorching sun significantly increases the burden on the thermal management system, and has a higher probability of problems compared to charging at night.
After a long period of driving, the temperature of both the motor and battery pack in electric vehicles is relatively high. If charged directly, it will further increase the temperature inside the vehicle. Over time, even if the battery does not self ignite, it will inevitably be damaged, resulting in a decrease in battery capacity. Therefore, do not charge immediately after prolonged driving. At the same time, it should be noted that many drivers choose the fast charging mode. Fast charging uses high-power direct current, while slow charging uses alternating current. When using a high-power fast charging pile, the connected current will also increase, and the movement of lithium ions will accelerate, which is easy to produce carbon lithium compounds and reduce the active lithium ions, thereby affecting the battery life. When the battery level is below 20%, it should be charged in a timely manner. If it is continued to be used, the total capacity of the battery will be damaged and reduced, and this damage is irreversible.
The staff introduced that car owners can use the "Find Charging Stations" function on the online State Grid App to learn about charging stations, the number of charging stations, and the distance between adjacent charging stations. Based on their estimated range, they can tentatively determine the charging station to go to and the number of charging times. Avoiding detours and unnecessary routes can also achieve the goal of saving electricity.
In addition, in hot weather, electric vehicles should try to choose more energy-efficient usage methods. For example, driving at a constant speed to avoid rapid acceleration and deceleration, and to ensure that the motor operates within the optimal efficiency range. Try to use the kinetic energy recovery system of the vehicle as much as possible. Short term and frequent stimulation can reduce the capacity of the battery and also cause damage to the electric vehicle controller and brake accessories. When driving an electric vehicle in daily life, it is important to reduce the number of emergency stops.
When using air conditioning in the car, try to use an internal circulation system as much as possible, which can save a lot of air conditioning power consumption. It is also possible to switch to an external circulation system for air exchange at intervals. At the same time, car owners should pay attention to controlling the load. For electric vehicles, the larger their own load capacity, the more electricity they consume. Therefore, it is necessary to drive within the range of electric vehicle load capacity and avoid overloading to avoid increasing the burden on electric vehicles.
Whether it's electric or fuel powered vehicles, it's important to pay extra attention to safety issues while maintaining them in daily life. "Lighters, perfume, reading glasses, filled spray, carbonated drinks, power packs, mineral water, etc. should not be placed in the car. Lighters, in particular, should not be placed in the dashboard or other places exposed to direct sunlight. High concentration butane is easy to explode at high temperatures. perfume contain up to 80% alcohol, which can also cause explosions in closed cars."
The high temperature weather will continue. Recently, there have been situations in Taiyuan where electric vehicles are charging, such as circuit faults caused by high circuit temperature or motor heating, resulting in short circuits. On August 8th, staff from State Grid Shanxi Electric Power Company reminded users that charging electric vehicles in hot weather should not be arbitrary, and these precautions should be kept in mind.
Electric vehicles are equipped with a large number of chemical batteries, which are very sensitive to temperature. At high temperatures, the batteries have a risk of self ignition. Electric vehicles should be parked in a cool place as much as possible to avoid exposure to sunlight. Prolonged exposure to sunlight can cause damage to the vehicle's battery thermal management system. Charging under scorching sun significantly increases the burden on the thermal management system, and has a higher probability of problems compared to charging at night.
After a long period of driving, the temperature of both the motor and battery pack in electric vehicles is relatively high. If charged directly, it will further increase the temperature inside the vehicle. Over time, even if the battery does not self ignite, it will inevitably be damaged, resulting in a decrease in battery capacity. Therefore, do not charge immediately after prolonged driving. At the same time, it should be noted that many drivers choose the fast charging mode. Fast charging uses high-power direct current, while slow charging uses alternating current. When using a high-power fast charging pile, the connected current will also increase, and the movement of lithium ions will accelerate, which is easy to produce carbon lithium compounds and reduce the active lithium ions, thereby affecting the battery life. When the battery level is below 20%, it should be charged in a timely manner. If it is continued to be used, the total capacity of the battery will be damaged and reduced, and this damage is irreversible.
The staff introduced that car owners can use the "Find Charging Stations" function on the online State Grid App to learn about charging stations, the number of charging stations, and the distance between adjacent charging stations. Based on their estimated range, they can tentatively determine the charging station to go to and the number of charging times. Avoiding detours and unnecessary routes can also achieve the goal of saving electricity.
In addition, in hot weather, electric vehicles should try to choose more energy-efficient usage methods. For example, driving at a constant speed to avoid rapid acceleration and deceleration, and to ensure that the motor operates within the optimal efficiency range. Try to use the kinetic energy recovery system of the vehicle as much as possible. Short term and frequent stimulation can reduce the capacity of the battery and also cause damage to the electric vehicle controller and brake accessories. When driving an electric vehicle in daily life, it is important to reduce the number of emergency stops.
When using air conditioning in the car, try to use an internal circulation system as much as possible, which can save a lot of air conditioning power consumption. It is also possible to switch to an external circulation system for air exchange at intervals. At the same time, car owners should pay attention to controlling the load. For electric vehicles, the larger their own load capacity, the more electricity they consume. Therefore, it is necessary to drive within the range of electric vehicle load capacity and avoid overloading to avoid increasing the burden on electric vehicles.
Whether it's electric or fuel powered vehicles, it's important to pay extra attention to safety issues while maintaining them in daily life. "Lighters, perfume, reading glasses, filled spray, carbonated drinks, power packs, mineral water, etc. should not be placed in the car. Lighters, in particular, should not be placed in the dashboard or other places exposed to direct sunlight. High concentration butane is easy to explode at high temperatures. perfume contain up to 80% alcohol, which can also cause explosions in closed cars."
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