Is 18650 lithium battery burning and exploding powerful?

18650 lithium batteries generally contain a protective circuit board inside, most of which are to guard against overdischarge. As a conversion device for chemical energy to generate electrical energy, lithium batteries must have great energy. It is safe that this energy can be released slowly, so if In the event of a violent reaction, it becomes extremely unstable. First, high temperature and high heat energy appear, and then a large amount of gas in a sealed environment will cause excessive internal pressure and expansion. When the internal pressure increases, the reaction speed will be promoted (just like the principle of a pressure cooker). Reaching the endurance of the shell will break through this balance and tear the shell. Once the shell is torn and a large amount of gas finds a way to escape, it will suddenly vent. At this time, it is actually the most dangerous, just like the broken tire of a truck. The explosion is the same. Close distance can concuss the internal organs and bleed internally, and there are also examples of breaking ribs. There have been reports of deaths on the spot in which Samsung mobile phones were short-circuited when answering the phone. Most of them in China are lithium batteries, which are extremely powerful and should be watched. There have been several cases of lithium battery explosions. Another lithium battery factory in Shenzhen has exploded. The preliminary investigation is that the explosives are semi-finished products of lithium batteries in the aging workshop. The parent company has also suspended the license due to fire and explosion caused by spontaneous combustion of stacked batteries. Some people claim It's because Shenzhen is too hot and the battery can't stand it. In addition, according to investigations, a fire broke out in the warehouse of the factory on March 22, and the fire was not extinguished until the early hours of the next day, causing economic losses of 20 million yuan. The two fire accidents were only less than four months apart. Calculate, a fully charged 18650 type ternary lithium battery with 2.6AH has an energy of 2.6*3.65*3.6u003d34.164 kJ. The energy that appears when the muzzle of a general pistol is fired is about 2.2 kilojoules. 1 joule is equivalent to the work done when a force of 1 Newton moves an object 1 meter in the direction of the force, so within 50 meters of the pistol, Can easily kill the enemy. Think about it, a Tesla needs to use more than 7,000 3.4AH 18650 lithium batteries. As long as it is a lithium battery, there is a risk of explosion, but this is a small risk. But once it explodes, the explosive power of a 18650 lithium battery with a larger capacity is unimaginable. Disclaimer: Some pictures and content of articles published on this site are from the Internet. If there is any infringement, please contact to delete. Previous: What are the reasons for the decline of lithium battery packs for new energy vehicles?