How to Prevent Lithium Battery from Reigning

For Tesla was much in 2013 years, a barrage of Tesla occurred in the United States and Mexico Models with 3 storage The battery Fire incident to Tesla's shares tumbled down, again and again, three events attract even the national highway traffic safety administration survey of Tesla and production of electric cars. Aiming at the safety accident, Tesla was later to upgrade software Models, but to no avail, until one day, by the musk announced the Tesla electric vehicles in the chassis adds three protective layers and through the extreme test, just got this battery fire door is calm.

Review what happened in the past year in Tesla Models three safety accident, including two up because of the car on the road around an object, the destruction Lithium-ion batteries, which makes the battery internal short circuit between the positive and negative electrode lead to overheating and light solvent electrolytes. Another driver is due to the parties at 177 kilometers per hour speed run into concrete wall caused by the fire. Three incidents are no one was hurt, but it brought to the national highway traffic safety administration investigation.

The survey report shows that it is due to the low chassis Tesla itself, makes the vehicle over and ground obstacles happening incident, puncture the battery, resulting in a fire vehicle. For this, after the accident, Tesla issued Models of wireless software updates, hang the Models sold a highly praised, however, Tesla's stock is not because of the software release and heat up.

Musk told the media to exaggerate the fire accident influence also expressed dissatisfaction, he pointed out that since the accident, received about Models of fire events in various countries of the world's headline Numbers even more exaggerated than the United States last year 200000 total number of accidents. For the previous two cases, he said, the airborne computer will warn the user when the fire escape vehicle, even if the passengers had no time to escape, before the fire brigade arrived, they will still be under the protection of the safe, because the firewall between the battery and the passenger compartment is made up of steel and ceramic material filling.

Even so, in order to make accident rates reduce to zero, from the beginning on March 6, 2014, Tesla production all cars will be equipped with a triple bottom protective layer. The outermost layer is a hollow round aluminum bar, the second floor by penetrating decorate material in front of the battery when the road has approached the obstacles, can rise to change direction to prevent obstacles close to the battery. In addition, the aluminum bar to a certain extent also can absorb the impact of the obstacles.

The second layer is a titanium plate, the material of the protective plate usually only inspecial and military applications to see, titanium plate can prevent damage of sensitive components are at the bottom of the before, after the most obstacles when a layer of protection will be deflection or pieces. As for the tiny fragments of the individual is still intact, is 100% in the third layer, there is solid aluminum extrusion and into this layer, through the layer to absorb impact energy, the obstacles will not affect the battery.

To test practical protection effect of triple protection plate, the vehicle was tested, a total of 152 vehicles for the test, the testing process takes into consideration all the worst case of debris effects and including the obstacles to harden steel, concrete, and other materials in a specific position, using the camera under the vehicle by the morphology of these obstacles obstacles.

From the test, the effect of the concrete barriers was shattered, quenching steel qualitative obstacles deviation from the original path, the increase of triple protection the protection of the chassis is helpful, and its influence on the whole structure of the vehicle is very small. For the vehicle driving resistance, manipulate scope not more than 0.1%.

The page contains the contents of the machine translation.