How powerful is the explosion of mobile phone batteries?

Lithium-ion batteries generally contain a protective circuit board inside, mostly to prevent over-discharge. As a conversion device for chemical energy to generate electrical energy, lithium-ion batteries must have great energy. It is safe that this energy can be released slowly. If a violent reaction occurs, it will become extremely unstable. First, high temperature and high thermal energy will appear, and then a large amount of gas will appear in a sealed environment, which will cause excessive internal pressure and expansion, and increase in internal pressure will promote The reaction speed (just like the pressure cooker principle) is so vicious circle that when the expansion reaches the shell withstand limit, it will break through this balance and tear the shell. Once the shell is torn, a large amount of gas will find a way to vent, and it will vent suddenly. In fact, it is the most dangerous. Just like the explosion of a tyre of a truck, the internal organs of a person can be concussed and bleed at close range, and there are also examples of breaking ribs. With the current technology, the manufacturing process of lithium-ion batteries is very mature. As long as it is used reasonably, most of the time there is no need to worry about it. Just pay attention to the 3 points that do not let the battery heat up: 1. Do not charge quickly with high current 2. Just charge Good electricity waits to cool down before use 3. Remember not to discharge with high current (such as short circuit). Pay attention to these 3 points. I believe that even if it is a defective lithium-ion battery, there is no reason for explosion. 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: Detailed explanation of the classification of lithium-ion batteries