The fact that the electric vehicle has a battery rollover is technically a battery overturn.
Who is the leader, who has to shoulder the responsibility of innovative battery technology, almost all electric vehicles are currently used in ternary lithium batteries, in order to ensure the endurance and charging speed, so that the current electric vehicles are more easily dumped out, short-sighted development restricts the distance of winter electric vehicles, especially at ultra-low temperatures, electric vehicles have really become "electrofreeze cars".
Recent tests by some media have shown that even today, electric vehicles are still not suitable for use in the northern regions with lower temperatures, especially in the three eastern provinces, and electric vehicles can be recommended to buy at a low value.
If anyone asks someone in the three eastern provinces to buy an electric car, you can let him rest while going.
Technically, ternary lithium batteries are not sensitive to the temperature of the 0-40 degree range, but once beyond this range, the life and capacity will be greatly reduced, and the low temperature performance of different lithium batteries is different, but it is similar.
This means that even the bydir and Ningde era, which are the most technologically advanced in China, cannot handle low temperature performance.
At present, almost all electric vehicle companies use the battery of the Ningde era, that is to say, in the environment of rapid development and serious internal rolling, all the problems about endurance are pressed on the Body of the Ningde era.
Supporting programs, battery capacity, battery safety and even charging speed, all need to take technology from the Hands of the Ningde era, so the battery is not durable, low temperature downward is not ok, not to see how the enterprise is, but to see how the Ningde era is.
So, how serious is the battery life decay in winter?
Previously, there was no clear data reflected, and everyone's speculation was that at a temperature of about zero degrees, the follow-up flight performance of the warm wind could be attenuated to about 70% of the calibration, that is, 30% of the mileage evaporated, mainly for air conditioning heating.
What about in more severe cold conditions, such as minus zero? Basically, the battery life is only half of the original.
For example, the Xiaopeng P7 with ultra-long endurance, the endurance under low temperature conditions is only 300km, and it is basically the mileage of running electricity, which also means that such endurance cannot meet the slightly higher intensity of car life on the cold northern continent.
Why? Mainly determined by the characteristics of lithium batteries, the ability to resist low temperatures is too poor.
Strictly speaking, this is not a problem of the enterprise, but a problem of the battery itself, first of all, the problem of short battery life in the case of low temperature is itself a battery problem, and these companies almost do not have the ability to produce batteries.
It is not that they will not produce, but they have no ability to produce, the batteries they produce are directly purchased from such enterprises as the Ningde era, and the basic technology determines that in fact, all these electric vehicles are a foundation.
The technical foundation determines that their battery endurance is basically not too bad, and the problem of collapse in winter is simply helpless, because fundamentally speaking, they are only responsible for procurement, integration and assembly, of course, some companies will do detailed design optimization and technical solutions according to the product.
But the problem of lithium batteries they can not solve, so when encountering low temperature problems, basically all will stop cooking.
Is it a problem of the Ningde era? Yes, but, is it the pot of the Ningde era? Obviously not, as a Chinese company, the strength of the Ningde era has supported the huge electric vehicle industry.
But this industry is very collapsed in the winter, and what we can see is that the industry dragged up by the Ningde era is a fat industry, which is responsible for supporting the industry, but the industry participants have not upgraded themselves.
You provide the 811 battery, I use it, anyway, there is no pressure of self-development.
In the final analysis, the service of the Ningde era is too good, so that many so-called new forces enterprises have not fundamentally solved the technical barriers, and this barrier is handed over to the head enterprises to do.
The benign development of an industry should be the efforts of countless Ningde eras, but today's situation is a Ningde era that has supported the industry's large market, but it is obvious that this is an industry with deformed development.
Enterprises should also produce their own batteries, have their own core technology of batteries, and the battery industry with a hundred flowers can solve problems in a hurry, rather than relying on big trees to cool off.
If there are more people under the big tree, some people will think that this is the right thing to do.