What is the reason for the explosion of lithium batteries

Long-term overcharge of the battery: Under the long-term charging state, overcharge and overcurrent will also cause high temperature and high pressure, causing hidden dangers. Lithium batteries may instantaneously discharge under special temperature, humidity, and poor contact conditions, causing a lot of current to occur, causing spontaneous combustion or explosion. Battery short circuit: When the mobile phone is in a high temperature state, or is subject to impacts, metal conflicts, etc., it may form a battery short circuit and explode. Charging causes the battery to burst: playing with the phone while charging, and charging while playing will cause the charging time to become longer, long-term charging will cause the temperature of the phone to rise, and it is easier to blast. The charger does not match the battery: Generally, mobile phones have original chargers. A charger of the wrong model simply causes a battery accident. Apple mobile phones only bear the original charger, which greatly reduces the chance of spontaneous battery explosion. Excessive temperature: Excessive temperature means that the internal heat of the battery has reached the limit. Long-term charging, high temperature irradiation, and baking all simply result in excessive battery temperature. In the southern part of our country, ordinary families use electric ovens in winter. Many people like to use their mobile phones while grilling on the electric oven. This is also very risky. Thermal runaway: The reason why the lithium battery has the risk of blasting is due to a process called thermal runaway in the internal reaction of the battery. Thermal runaway is an energy positive feedback cycle process: an increase in temperature will cause the system to heat up, and the system will heat up and increase the temperature, which in turn makes the system hotter. The above reasons such as short-circuit of the battery, high ambient temperature, frequent overcharging, unauthorized modification of the casing, etc., will cause the lithium battery to exhibit thermal runaway, which may eventually cause fire or explosion. Disclaimer: Some pictures and contents of articles published on this site are from the Internet. If there is any infringement, please contact to delete. Previous: Commonly used charging methods and matters for lead-acid batteries