What to do if the 18650 battery pack catches fire.

What to do if the 18650 battery pack catches fire.

Ignition of 18650 ion batteries is a very unusual situation, but when it occurs, it can cause strong reactions and significant exposure. Whether it is a storage station or an electric bicycle, the cause of battery fire may be internal battery failure rather than the battery itself. The main reason is temperature runaway. To know how to extinguish a fire, you must know what caused the battery malfunction.

The main reason for lithium battery fire is that the heat in the battery is not released according to the design requirements, and the fire occurs after reaching the ignition point of the internal and external combustion materials. The main reasons are external short circuits, external high temperatures, and internal short circuits.

How to deal with the ignition problem of lithium-ion batteries?
After fully understanding the causes of lithium battery fires, we should provide suggestions on how to extinguish them after a fire. There are four methods
Only one small spark was installed. High voltage batteries are not affected by flames. Carbon dioxide or dry powder fire extinguishers can be used to extinguish fires.
If the high-voltage battery is deformed or severely deformed during a severe fire, the battery may have malfunctioned. Then we must release a large amount of water to extinguish the fire. There must be a lot of water.
When checking the specific situation of the fire, do not touch any high-voltage components. Be sure to use insulated tools for overall inspection.
4. Patience is necessary when extinguishing fires. It may take a whole day. If there is a thermal imaging camera, it can be used. The thermal imaging camera can be monitored to ensure that the high-voltage battery is completely cooled before the end of the accident. If this is not the case, the battery should be monitored throughout the entire process until the lithium-ion battery pack no longer heats up. Ensure that there are no issues after at least one hour. We need a lot of time and energy to ensure that it doesn't happen again, but don't worry too much. Lithium batteries will not explode. Generally speaking, such a major accident would not occur.