Battery quality assurance plus vehicle quality assurance, electric vehicle quality assurance?

In the current car market, new energy vehicles grab the camera, all kinds of problems are coming, and the biggest doubt is that new energy vehicles can be like traditional energy vehicles for many years not bad? Is it possible to drive it for 10 years without breaking down? Actually, I have a little question about that. How many people can drive a conventional energy car for 10 years? I'm sure most people change after three or five years.

If I had to wrestle with this issue, I would like to start with the battery, an important component of new energy vehicles. Basically no big accident, the battery life of the car is how long, and like conventional energy vehicles, the engine is not bad problem.

First, let's talk about the batteries in the new energy vehicles on the market. It is mainly equipped with lithium ion battery and lithium iron phosphate battery.

lithium iron phosphate battery has the advantages of high temperature resistance, strong safety and stability, low price and better cycling performance. The ternary lithium battery is different from the lithium iron phosphate battery in that its voltage platform is very high, which means that under the same volume or weight, the specific energy and specific power of ternary lithium battery are larger. In addition, ternary lithium battery has great advantages in high rate charging and low temperature resistance.

In terms of battery life, we all know that batteries don't work as well over time. At present, we have not used many years of new energy vehicles as a basis, but we can see according to the car manufacturers to the battery warranty time.

Most manufacturers provide data that the battery life can reach 1500-2000 charge and discharge. If you charge it once a day, that's 365 times a year, so it could theoretically last three to six years. Take emgrand new energy as an example. The battery pack warranty provided by the manufacturer is 8 years or 150,000 kilometers. From this point alone, it is unlikely that the battery of a new energy vehicle will last for 10 years without any problem.

Some people may say that the battery is only attenuated, not cannot charge use. From another perspective, emgrand new energy, for example, gives a car warranty of three years or 120,000 km. From this data, if you run 15,000 km a year, you will run for eight years at most. When the warranty period is expired, the cost of replacement parts is a large amount of money.

As there is no new energy vehicle used for long enough, there is no direct evidence. In terms of fuel cars, there are not many people who can drive a car for more than 10 years. Like new energy vehicles, there is no great breakthrough in technology. It may be OK to use them in the first two years. After a long time, there will still be many problems.

Back to the question at the beginning of the article, is it possible that the new energy vehicles will not be broken even after 10 years? In my opinion, the answer is no. Of course, the correct result still needs time to prove. I believe that with the development of science and technology, automobile technology will also develop slowly and its life will be longer and longer.

The page contains the contents of the machine translation.