Electric vehicle fires continue to raise questions among drivers, but the main danger often arises after the flames appear to be completely extinguished. As explained by American firefighter and emergency response specialist Jason Brown, lithium-ion batteries can re-ignite hours or even days after a fire has been put out.
The reason is related to what is known as thermal runaway. When a battery cell is damaged, an uncontrolled chemical reaction begins inside the battery, releasing a large amount of heat. Even if the external flames have been extinguished, individual elements within the battery pack can continue to heat up.
This is why, after serious accidents, electric vehicles are often placed in special observation areas. In some cases, rescue services monitor the battery temperature for several days to ensure there is no risk of re-ignition.
At the same time, experts emphasize an important fact: statistically, electric vehicles are not considered more prone to fire than internal combustion engine vehicles. However, the nature of such fires differs significantly. While in traditional cars the main threat is flammable fuel, in electric vehicles the complexity lies in the battery itself and the processes occurring within it.
Automakers are actively working to solve the problem. Modern battery packs are equipped with additional cooling systems, protection against mechanical damage, and software algorithms capable of disabling damaged sections of the battery. In addition, more and more companies are investing in the development of next-generation batteries, including solid-state batteries, which potentially have higher resistance to overheating.
Fire safety is considered one of the key areas of battery technology development today, along with increasing range and reducing charging time. As the number of electric vehicles on the roads grows, the importance of these developments will only increase.