The new energy vehicle must be fully charged?

With the popularity of new energy vehicles and the increase of owners' favor for new energy vehicles, the advantages of saving money, green and environmental protection have made many people incorporate new energy vehicles into their shopping lists; But pure electric vehicle charging is an inescapable topic.

Many people for the new energy vehicle charging need to be full every time, must reach 100% or charge with use is better, when should charge?

Today we will talk with you - these doubts of new energy owners.

At present, the three most common types of batteries for new energy vehicles are mainly: ternary lithium batteries, lithium iron phosphate batteries and lithium nickel metal hydride batteries. Among them, ternary lithium batteries and lithium iron phosphate batteries have high energy density and relatively stable performance, and these two types of batteries are the most widely used in electric vehicles. The nickel-metal hydride battery is also a good performance battery, which is gradually used in the field of new energy vehicles.

Lithium iron phosphate battery has good thermal stability, safety, low cost, long life, low energy density, fear of low temperature. When the battery temperature is 500-600 ° C, its internal chemical composition begins to decompose, and puncture, short circuit, high temperature will not burn or explode, and the service life is longer. However, the vehicle mileage is generally, when the temperature is lower than -5 ° C, the charging efficiency is low, and it is not suitable for the demand of charging in the north in winter.

Ternary lithium-ion battery has high energy density, long cycle life and is not afraid of low temperature; Insufficient stability at high temperatures. The energy density can reach the highest, but the high temperature is relatively poor, and pure electric vehicles with requirements for driving range are in the mainstream direction, and are suitable for northern weather, and the battery is more stable at low temperatures.

Nickel-metal hydride battery Xiaobian understanding is not a lot, so here not to say.

In terms of charging, many owners have wrongly linked the battery life directly to the number of charges. In fact, this is biased. The battery does have a life, but it is not calculated by the amount of charge or the number of charges per time, but by the complete cycle of the battery - after 100% use, it is regarded as a complete charging cycle. For example, after the full charge starts, after the end of the driving, 40% of the electricity is used, and 60% of the electricity is left, even after the full charge, the next electricity needs to use 60% to complete a charging cycle.

Lithium batteries have no memory effect and can be fully used and charged. The so-called memory effect refers to the effect of the battery automatic memory user's usual tendency to charge and discharge cycle, only fully charged to maintain the battery capacity of large lithium batteries without memory effect, can be completely used with charge, from this point of view, we do not need to pursue "full" every time when charging new energy vehicles. From the perspective of structure, for the power battery, the best state is to maintain the electricity at about 20% to 90% ° C, which can significantly improve the battery life.

Therefore, with the use of charging, shallow charging and shallow discharge, is the best charging method for new energy vehicles. In particular, daily commuting in the city, or short trips, only need to meet the mileage required for your trip, while charging regularly to avoid excessive discharge.

Charge it in winter

It should be noted that in winter, the battery activity of new energy models is low, although the charger shows full power, but the internal may only reach about 80% of the battery power. And in the winter, the driving range of new energy vehicles in the case of warm air will be further reduced, so the owners of new energy vehicles can charge for a period of time when charging in the winter. Make sure the battery is fully charged.

In addition, whether it is temporary parking or charging, in the case of conditions, try to choose a relatively high temperature place, such as underground parking lots, closed garages, etc., not only help to improve the activity of the power battery, can reduce the loss of driving range, but also improve the charging efficiency, save time, and get warmer when entering the vehicle interior

END

I do not know whether the answer that Xiaobian knows has solved the doubts of the owners

Are you all at ease

Now the charging of new energy vehicles is nothing more than two ways of AC charging and DC charging

The technology is getting more and more sophisticated

We do not need to be too nervous in the process of daily use

If conditions permit, you can consider installing a home AC charging pile, which is convenient and quick without waiting.

Regular charging stations are also a good option

Follow the charging principle of shallow charge and shallow discharge, and charge regularly

There are few problems

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