Why do lithium batteries explode?

⒈Excessive moisture content. Moisture can react with the electrolyte in the lithium battery cell, process gas, and when charging, it can react with the generated lithium to generate lithium oxide, which causes the capacity of the battery cell to be lost, and the battery is easily generated by overcharging The analysis voltage of gas and water is low, and it is easy to analyze the generated gas during charging. When this series of generated gases will increase the internal pressure of the battery cell, when the outer shell of the battery cell cannot bear it, the lithium battery will explode. ⒉Internal short circuit due to internal short circuit phenomenon, large current discharge of the battery cell, a large amount of heat occurs, burns the diaphragm, and causes a greater short circuit phenomenon, so that the battery core will have a high temperature, causing the electrolyte to analyze into a gas, causing internal pressure If it is too large, when the shell of the battery cell cannot withstand this pressure, the battery cell will explode. ⒊When the overcharge core is overcharged, the excessive release of lithium in the positive electrode will change the structure of the positive electrode. If too much lithium is released, it is easy to be unable to be inserted into the negative electrode, and it is also easy to cause lithium deposition on the surface of the negative electrode. Moreover, when the voltage reaches 4.5V or more When, the electrolyte will analyze and process a large amount of gas. All of the above may cause an explosion. ⒋External short-circuit The external short-circuit may be caused by improper operation or misuse. Due to the external short-circuit, the battery discharge current is large, which will cause the battery cell to heat up, and the high temperature will cause the diaphragm inside the battery cell to shrink or completely damage, resulting in lithium batteries. An internal short circuit caused an explosion. Disclaimer: Some pictures and content of the articles published on this site are from the Internet. If there is any infringement, please contact to delete. Previous: Polymer lithium battery and classification analysis