What do you know about the winter range of new energy pure electric vehicles?

Lithium batteries have an impact on the range in the cold winter.

Lithium-ion batteries work on the principle that the electrolyte inside changes through a chemical reaction, and a potential difference occurs at the positive and negative electrodes to produce an electric current. In a low-temperature environment, the electrolyte moves quite slowly, which affects the transfer activity of lithium ions between the positive and negative electrodes, resulting in a decrease in the charging and discharging performance of the battery.

To put it simply, in a low-temperature environment, it is not that the lithium battery is really dead, but that there is power but cannot be released normally. According to analysis data, the capacity of ordinary lithium batteries will be reduced by 20 at zero degrees Celsius, and when it reaches minus 10 degrees Celsius, the capacity may only be about half.

Extended Information: Precautions for Winter Use:

1. Find a warm place to charge.

When the ambient temperature is lower than 0, charge the electric vehicle, the system will automatically heat the battery cell first, and when the temperature of the battery cell reaches more than 5, it will really start charging the vehicle. Some EV owners feel that charging their EV in the winter suddenly slows down, which is actually an extra time to heat up the battery cells before charging the vehicle.

Therefore, when the car owner usually charges the car, he should try to choose the underground parking lot, closed garage and other places. This helps to improve the activity of the battery, which not only reduces the loss of range, but also improves the efficiency of charging and saves time.

2. Charge the battery for a short time before traveling.

The day before, the electric car was still 60 or 70 percent charged, but the next morning it was only 30 percent or less charged. Some people call this situation "running electricity". In fact, this kind of "running power" is not a failure, but a fault caused by low temperature.

In the process of driving the electric vehicle, the battery is in a state of continuous discharge, the temperature will be relatively high, and the voltage of the battery is relatively high.

However, after being parked in a low temperature state for a whole night, the battery has cooled down and the voltage drops, at which point the car's system will automatically adjust the displayed power and range, which creates an illusion of "running power". In this case, you generally only need to go out in advance and charge the battery for about 10 minutes.

3. Drive steadily and don't be in a hurry.

When driving an electric vehicle, you should accelerate slowly and avoid intense driving methods such as deceleration, sharp turns, and sudden braking. Good driving habits can effectively reduce the rate at which the battery drains power. The time to start the car should not exceed 5 seconds each time, and the interval between starting again should not be less than 15 seconds.

If the battery mileage drops too much, you should go to the 4S store in time to check the battery of the car, replenish the electrolyte of the battery in time, and adjust the specific gravity of the electrolyte.

Hope, thank you!

1. The shortening of the cruising range in winter is related to the charging environment temperature.

In winter, many car owners will encounter such a situation: yesterday there was 90% electricity, after a night, found that the power declined seriously, this is because in the low temperature environment, the activity of the power battery electrode material is reduced, the lower the temperature of the chemical material, the worse the activity of the material, and the battery storage power will decrease. But you don't have to worry, this is the normal attribute of the power battery, when the temperature returns to normal temperature, the battery storage power will decay and decrease.

Therefore, if you can go to an underground parking lot or garage to park and charge, or you can charge it when it is relatively warm during the day, this will help improve battery activity and reduce the loss of range. Of course, many mid-to-high-end electric vehicles now have a battery temperature control management system to withstand the lower temperatures in winter.

2. Charge in time and charge at any time.

Before charging, check the vehicle charging port, ensure that the use environment is ventilated and dry, and charge the car in time after each use of the new energy electric vehicle to avoid power loss, which will affect the car and the battery to cause damage. In addition, charging in time after use can also reduce the battery warm-up time, because the temperature of the battery is relatively high after the vehicle is used, and it can also improve the charging efficiency. Remember, do not charge the battery for a long time, but charge the battery correctly and reasonably according to the actual situation of the vehicle and the frequency of use, otherwise the service life of the battery will be shortened.

3. Plan your itinerary in advance.

How to make new energy vehicles better serve us and avoid the problem of breaking down halfway due to insufficient battery life, it is very important to plan the route in advance. At present, the actual cruising range of the mainstream of new energy vehicles is between 300 kilometers and 500 kilometers, therefore, under your car conditions, under the frequency of use, a charge can meet your needs for many times, only by calculating this demand can electric vehicles serve you with peace of mind anytime and anywhere.

4. Reasonable tire pressure and tire cleaning.

Every winter, when the temperature drops, the rubber tires of the car will become hard and brittle, and the air pressure will be too low to produce soft tires, and the soft tires will accelerate aging at low temperatures, intensify the friction with the ground, and reduce the service life of the tires. If the tire pressure is too high, it will be easy to puncture the tire and affect the driving. In addition, we have to clean the tread inclusions frequently.

5. Develop good driving habits.

Driving habits are more extensive, in new energy vehicles, due to the explosive particularity of the output horsepower of the electric motor, usually our driving will have a certain impact on the mileage, so the driving should be as smooth as possible, to avoid emergency acceleration, emergency braking and other rough driving methods. If you don't drive the vehicle in winter, you can fully charge the battery in advance and ensure that the battery is charged every once in a while to ensure the activity of the battery. All in all, the use of new energy vehicles in winter is insufficient compared with fuel vehicles.

New energy vehicles. New energy vehicles are now generally subject to battery technology, so the nominal battery life is measured without the use of electrical appliances. The battery life of more than 400 itself is very small, and then when it is cold, the battery needs to be insulated, and the cockpit needs to be heated, which all require electricity.

So it's normal for the battery life to decrease.

At present, new energy vehicles mainly refer to new energy electric vehicles.

The power of the car is the power battery pack inside the car body, which is mainly encapsulated with lithium compounds. The battery can be converted to chemical energy.

Converted to electrical energy. Ternary lithium batteries or lithium iron phosphate batteries that produce chemical energy.

The energy produced by the material itself is also different due to the influence of temperature changes. In short, it prefers constant temperature (20 degrees) and is afraid of high and low temperatures. At low temperatures, this type of battery is affected by low temperatures, the material activity is reduced, and the energy produced is also reduced.

In winter, the range of many electric vehicles will generally be reduced by 20%-30%, and some of them will be reduced by more than half. The best operating temperature for new energy batteries is 25 degrees Celsius.

The lower the temperature, the battery level decay will decline in a stepwise manner, like this year's cold wave.

The average temperature in Lacha is minus temperature, and the battery attenuation range may be 20%. The main reason for the decline in the endurance of new energy vehicles is the reduction of the activity of the power battery in the low temperature environment, the reduction of the net discharge rate of the battery, and the impact on the battery capacity.

, resulting in a large difference between the marked mileage and the actual mileage.

In winter, the main reason for the serious decline in the range of new energy vehicles is that the weather is too cold. In relatively cold weather, since new energy vehicles mainly rely on battery packs, batteries have a characteristic, that is, in cold weather, power consumption will increase, and the charging speed will be very slow. These problems have affected the development of new energy vehicles.

Vehicle energy consumption refers to the energy required by the vehicle during driving. Comrades in the North can imagine two different sensations: driving a tram in the warm spring and driving a tram in the cold winter.

The most intuitive thing is that when the winter is cold, you have to turn on the air conditioner, which will increase energy consumption. The colder the weather, the greater the energy consumption of the vehicle. That's why electric vehicles are in the northeast region of China.

The reason for the seldom use is to play it.

The real battery life of new energy vehicles in winter is really not good, mainly because the sun in winter is not enough, so it cannot provide enough energy.

It's not particularly good, if the weather is cold, the car will have a particularly serious power loss, the battery life will be particularly poor, and it will not start.

The battery life is particularly good, and life will also make a person feel particularly warm, and there are many communities that now have charging piles.

Most of the current pure electric vehicles are ternary lithium batteries or lithium iron phosphate batteries, with the drop of temperature, the activity of the electric calendar pool will be reduced, and the mileage will be greatly shortened. If your car freezes outside overnight, the battery will definitely be affected.

Therefore, parking is a very key factor, and it is best to park pure electric vehicles in underground parking lots with high temperatures in winter, or choose indoor parking if possible.

For pure electric vehicles, how to control the throttle is also very important, similar to fuel vehicles, often with a large foot throttle, fuel consumption will definitely be higher. In the same way, if you drive a pure electric car, the accelerator pedal is deep, and the power will be consumed faster.

Therefore, when driving a pure electric vehicle in winter, you must step on the accelerator slowly, avoid rapid acceleration, and try to keep the vehicle at a relatively stable speed, which will also help the cruising range.

In fact, this approach is not right, it is easy to cause overcharging, and the battery capacity is generally fixed, and it can be fully charged. In winter, try to choose to charge in an indoor parking lot, first, it can avoid the impact of rain and snow weather is safer, and second, the indoor temperature is also good for the battery.

Whether it is a lithium battery or a lithium iron phosphate battery, excessive charging and discharging will cause irreversible damage to the battery. Some car owners may feel that it is cold in winter and the battery needs to be charged a little longer so that it can go farther.

In addition, there is no need to wait until the power is almost consumed every time before charging, the harm of over-discharge is not small, it is best to be able to charge at any time, keep the remaining power at more than 30%, so that there will not be too strong battery life anxiety.

After a night of "freezing", it is cold to feel everywhere when you enter the car, and you dare not hold the steering wheel directly.

For pure electric vehicles, it can't be so casual, because these are particularly power-hungry things, and if the air conditioning and heating are turned on, it is estimated that the cruising range will be shortened a lot.