Elon & middot; musk, the founder of Tesla, who launched rockets, has become a hero in the eyes of the American people with the help of the model s electric vehicle, just like the iron man. Recently, a series of natural events have occurred in this model, whether it indicates that he will step down from the altar? The key to decipher the spontaneous combustion of model s electric vehicles is to reveal why the electric vehicles of model s are spontaneous combustion.
According to reports, the model s electric vehicle occurred in Toronto, Canada. On the night, the car ignited in an underground garage when it was not charged. Firefighters put out the fire without causing casualties. At the same time, seven Tesla staff members rushed to the scene to investigate the cause of the accident, and said they were willing to compensate the owner for all the losses, but the owner refused to compensate.
Three such spontaneous combustion incidents have occurred one after another. Tesla said that auto ignition can not be completely eliminated. The probability of spontaneous combustion of fuel vehicles is 5 to 10 times higher than that of electric vehicles. All automobile manufacturers must deal with combustion accidents.
It is necessary for us to find out the truth of the accident to understand the battery safety technology of Tesla models
This electric car uses 18650 lithium cobalt oxide batteries of NCA series (nickel cobalt aluminum system) provided by Panasonic. When the capacity of a single battery is 3100 Ma, you may be unfamiliar with it. But if you mention notebook battery, you will be very familiar with it. Before, the battery was very popular in notebook, but 18650 battery technology is more advanced than BYD's E6 phosphorus For lithium iron oxide batteries, the discharge capacity is more than two times.
Even so, it has become a big problem to use numerous 18650 batteries in electric vehicles. The intelligent engineers of models solved this problem in this way. 8142 18650 lithium-ion batteries were assembled into a battery pack with bricks and pieces as the unit, and then put them on the underbody.
But engineers say the problem is just a child compared to the next problem of battery safety management.
The stability of 18650 Li ion battery at high temperature has security problems, so how to manage these active molecules has become the key of model s electric vehicle technology.
First of all, each 18650 lithium battery is installed with a safety device. If it overheats, it will be cut off. At the same time, independent safety devices are also installed for each piece. The reason for this is to prevent the problems of individual batteries, which will bring disaster to the fish in the pond, and the fire can also be controlled. Therefore, when there is a problem with the model s battery, the repair and replacement are carried out on a piece by piece basis.
Therefore, we can see that temperature plays a key role in affecting the stability of the battery. If it is too high or too low, accidents will occur. The electronic control system should timely monitor the temperature state of each battery, which is a very precise work.
Knowing the battery safety technology of Tesla's model s electric vehicles, we must be surprised why spontaneous combustion occurs due to such precise management measures. Some experts have concluded that it is precisely because this safety system is too precise that problems may occur in the procurement and production process. Finally, the lithium battery accident causes spontaneous combustion S is just a beginning. It's a long way to go.