Electric mobility fights against many difficulties that are not always referred to the autonomy of the vehicles or to the lack of an infrastructure that allows traveling long distances with them. Safety and false myths about the dangers of electric batteries also permeate drivers.
The first thing to clarify is that an electric vehicle is subjected to the same EuroNCAP security tests than one with a combustion engine, so they are cars as safe as any other model. What’s more, thanks to the compactness of their engine, they may be even more reliable in a frontal collision.
As regards the electrical components and, more specifically, the battery that powers the engine, it is true that extreme situations can occur in which the battery suffers from overheating, either due to too high temperatures or due to a technical failure.
Leaving aside the mechanical and technological advances that improve the quality of these vehicles more every day, It should be noted that the batteries of electric cars have to pass several tests safety before hitting the market and on the road.
The tests that electric car batteries are subjected to can be classified into five groups that test different qualities of the battery but also different dangers that can damage its operation.
The first of them is the vibration, by which it is ensured that the operation of the battery is not interrupted regardless of the road on which the car circulates.
The second test subjects the battery to thermal cycles in which there are several sudden changes in temperature and in which the battery has to leave operational. This ensures that it can withstand variable weather conditions without overheating.
Afterwards, an attempt is made to short-circuit the battery to check that, in the event of a power failure, the battery will not explode even if it may become useless. It also undergoes fire resistance or overload and discharge tests to ensure that it does not overheat, explode or catch fire.
By last, the resistance of the pile is tested by subjecting it to a mechanical shock, as if it were a collision, and even crushing it. The intent of all of these tests is to show that even if the battery is damaged to the point of not working, it will keep the vehicle users safe without exploding or catching fire.