lithium battery

Recently, the rainy season has entered the south, and rainfall is more common everywhere. For people who often ride electric vehicles out, they will worry about whether the electric vehicle batteries will get water.
First, we park our electric vehicles outdoors, and sometimes it rains suddenly, and it is difficult to guarantee that the battery will not get wet from the rain. So will electric vehicle batteries get water? What should I do if there is water?
1. The battery is soaked in water and dried before charging
Electric vehicles generally take a lot of waterproof measures, so it does not matter if the electric vehicles are wetted by rain, but this does not mean that the electric vehicles can "walk" in the water at will. Here is a special reminder to all car owners, do not charge the battery of an electric car immediately after it is wetted by rain, and be sure to dry the car in a ventilated place before charging.
2. The controller is easy to short circuit and lose control when it is immersed in water
Will the tram battery get water? Once water enters the controller of the battery car, it will easily cause the motor to reverse. After the electric car is seriously immersed, the owner can remove the controller to wipe off the accumulated water inside, dry it with a hair dryer and install it. Pay attention to the installation In the future, it is best to wrap the controller with plastic to increase the waterproof ability.
3. When riding an electric bike through water, the resistance of the water is very high and it is easy to cause loss of balance. Riding on a section of water accumulation, if it encounters a manhole cover opened by the current, it is very dangerous. Therefore, encounter a section of water accumulation. , It’s best to get off the bus.
However, current batteries are doing better and better, and many of them have dedicated waterproof and pressure relief components. These components can quickly ventilate during normal operation; when the gas reaches a critical value, it will be directly connected to the outside in an instant, a large amount of gas will be discharged, and the strong pressure inside the cavity will be released quickly to avoid explosion or reduce explosion damage.
In fact, there is no absolute answer to the question of whether electric vehicle batteries will get water, because who can guarantee that there will be no accidents! I can only remind you that if you often expose your electric car to the outdoors, it is recommended to buy some good waterproof batteries.
What should I do if the lithium-ion battery of an electric car enters water?
Looking around, many electric bicycles are parked outside without covering. The car owner feels that it is protected by a shell and can be carefree, but once rainwater penetrates into the electric car, it will cause damage to the motor controller, the motor, and the lithium-ion battery.
Although the design of the motor controller is waterproof, it is usually not particularly waterproof, and the controller will be directly burned out due to water entering. If water enters the motor, the wires will short-circuit. If the battery case is submerged in water, it will cause a short circuit between the positive and negative electrodes, causing slight damage to the lithium-ion battery, and even serious burnout or even explosion of the lithium-ion battery of the electric vehicle.
So what should be done after the water treatment of the lithium-ion battery of electric vehicles?
First, let the battery dry before charging. Electric cars of all brands have adopted waterproof measures, so don’t worry about GM electric cars getting wet in the rain. This does not mean that electric cars can travel through the water at will. To remind all car owners, do not charge the lithium-ion battery of an electric car immediately after it gets wet from the rain. After charging, you must put the car in a ventilated place for ventilation. The reason is the same as that of the mobile phone.
Secondly, the controller is easy to short-circuit out of control. The water of the electric car controller can easily cause the motor to reverse. If the electric car is soaked in water for a long time, you can delete the dry water in the controller and use a hair dryer to dry the installation. It is best to use plastic film to package the controller after installation. To improve water resistance.
Due to the great resistance of water, electric vehicles are prone to lose their balance and control when wading. When driving on a road with water, once they encounter water, they will hit the manhole cover, and the consequences will be disastrous. Therefore, for safety, it is best to get out of the car and push when you encounter a waterway.
In addition, try not to use electric cars instead of walking on rainy days. When parked outdoors, it is best to cover a raincoat; when charging, cover the plugboard with a plastic bag to prevent water from entering the plugboard and causing electric shock.