Generally speaking, the safety problems of lithium-ion batteries are combustion and even explosion. The root cause of these problems lies in the thermal runaway inside the battery. In addition, the lithium-ion battery may also have safety problems due to some external factors, such as overcharge, fire source, extrusion, puncture, short circuit, etc.

At present, lithium ternary batteries and lithium iron phosphate batteries are the most widely used new energy vehicles in the market. According to statistics, 68% of electric vehicle lithium-ion battery fire accidents over the years are caused by internal or external short circuit, 15% are caused by charging and discharging, 7% are caused by accidental startup of equipment, and 10% are caused by other reasons.

From the cause of fire, electrical failure and self-ignition are the main causes of electric vehicle fire, while overcharge, single battery failure and electrical circuit short circuit are the root causes of fire.

The new energy charging pile fire extinguishing system is a fire extinguishing system aimed at the fire hazard caused by the charging of the new energy charging pile. The fire extinguishing agent uses the new perfluorohexanone fire extinguishing agent. The perfluorohexanone is stored in the fire extinguishing device in liquid form. Once discharged, it evaporates immediately, completely submerges the protected space, and absorbs heat better than water, and will not damage any valuable assets, It has become the most effective fire prevention measure in the market. Perfluorohexadone is particularly suitable for extinguishing fires in areas where non-conductive media are required, where the electronic system cannot be shut down in an emergency, where the cleaning of other reagents constitutes a problem, and in areas where non-insulating media are usually required.