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Why does the lithium ion battery pack catch fire and how to deal with it?

by:UFO      2020-01-07
Lithium ion battery fire is a very unusual situation, but when it occurs, it will cause a strong reaction and cause a lot of exposure. Whether it is a storage station or an electric bicycle, the cause of the battery fire may be an internal failure of the battery, not the battery itself. The main reason is that the heat is out of control. To know how to put out the fire, you must know what caused the battery failure. The main reason for the ignition of lithium ion batteries is that the heat in the batteries is not released according to the design requirements, and the fire occurs after reaching the ignition point of internal and external combustion materials. The main reasons are external short circuit, external high temperature and internal short circuit. How to deal with the ignition problem of lithium ion battery pack? After fully understanding the cause of the lithium battery fire, we should propose how to extinguish the fire after the fire. There are four methods here 1. The installation is only a small fire, the high-voltage battery part is not affected by the flame, and the carbon dioxide or dry powder fire extinguisher can be used to extinguish the fire. 2. If the high-voltage battery is deformed or severely deformed during a serious fire, the battery may have failed. Then we must put out a lot of water to put out the fire. There must be a lot of water. 3. When checking the specific situation of the fire, do not touch any high-voltage components, and be sure to pay attention to the use of insulating tools for the entire inspection. 4. Be patient when you put out the fire. It may take a whole day. If there is a thermal imaging camera, it can be used. Thermal imaging cameras can be monitored to ensure that the high-voltage battery is completely cooled before the accident ends. If there is no such situation, the battery should be monitored all the way until the lithium ion battery pack no longer heats up. Make sure there is no problem after at least one hour. We need a lot of time and energy to make sure it doesn't happen again, but don't worry too much. Lithium batteries are not explosive. Generally speaking, such a big accident will not occur.
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