What is the main reason for the explosion of lithium iron phosphate batteries

　　1. Internal short circuit

　　The short circuit of the internal battery causes a large current to discharge, generates a lot of heat, burns the gap, and causes a larger short circuit scenario, which will decompose the electrolyte into gas. If the internal pressure is too great, the battery will explode.

　　2. Insufficient negative capacity of lithium iron phosphate battery

　　When the capacity of the positive electrode of the lithium iron phosphate battery is insufficient, the lithium atoms generated during charging can only be inserted into the sandwich structure of negative graphite, which will analyze and form crystals.

　　Long-term crystallization of lithium iron phosphate batteries can cause short circuits. At this time, the battery will discharge rapidly, which will generate a lot of heat and burn out the gap. The high temperature will decompose the electrolyte into gas. When the pressure is too high, the battery cell will explode.

　　Three, high water content

　　When charging, water may react with lithium to form lithium oxide, which causes the capacity of the battery to be lost. It is easy to overcharge the battery. The decomposition voltage of water is low, and it is easy to decompose gas when charging. When this series of generated gases increase the internal pressure of the cell, when the outer shell of the cell is helplessly affected, the cell will explode.

　　4. Overcharge of lithium iron phosphate battery

　　When the battery is overcharged, the moderate release of positive lithium will change the structure of the positive electrode. Too much lithium released can easily enter the negative electrode, which can easily lead to the evolution of negative nominal lithium. In addition, when the voltage reaches 4.5V or more, the electrolyte will decompose to produce a large amount of gas.