Cause analysis of lithium battery fire and how to deal with lithium battery fire?

Analysis of the causes of lithium battery fires As the energy source of pure electric vehicles, the important reason for the fire of lithium battery packs is the thermal runaway caused by battery overheating, which is most likely to occur during battery charging and discharging. Since the lithium battery has a certain internal resistance, a certain amount of heat will appear while outputting electric power to supply power for pure electric power, which makes its own temperature rise. When its own temperature exceeds its normal operating temperature range, it will damage the life of the entire battery. And safety. In pure electric vehicles, the power lithium-ion battery system is composed of multiple power lithium-ion battery cells. During operation, a large amount of heat is collected in the small battery box. If the heat cannot be quickly dissipated in time, High temperature will affect the life of the power lithium-ion battery and even cause thermal runaway, causing accidents such as fire and explosion. What should I do if a lithium battery catches fire? Analyzed the reasons for the battery fire. When the lithium battery is on fire and needs to be extinguished, let us look at Tesla's recommended method: 1. If there is a small fire and the flame does not spread to the high-voltage battery part, carbon dioxide or ABC dry powder fire extinguisher extinguishes fire. 2. When thoroughly inspecting the fire, do not touch any high-voltage components, and always use insulated tools for inspection. 3. If the high-voltage battery is bent, twisted, or damaged in a fire, it will be out of shape, or a problem with the battery may be suspected. Then the amount of water used for fire fighting should not be too small, and the amount of water used for fire fighting should be sufficient. 4. It may take up to 24 hours to completely extinguish the battery fire. Using a thermal imaging camera, you can ensure that the high-voltage battery is completely cooled before the accident is over. If there is no thermal imaging camera, it is necessary to monitor whether the battery will reignite. Smoke indicates that the battery is still hot, and the monitoring should be maintained until at least one hour after the battery no longer smokes. Disclaimer: The articles published on this website are all from the Internet. If there is any infringement, please contact to delete it. 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: Ni-MH battery maintenance guide