Fire extinguishing material suitable for extinguishing electric vehicle fire

Abstract

The invention relates to the technical field of fire extinguishing materials. The fire extinguishing material comprises the following raw material components: a fire extinguishing enhancer, a stabilizer, an antifreeze agent, a thickener, perfluoro(2-methyl-3-pentanone) and water, wherein the fire extinguishing enhancer is a mixture composed of sodium silicate, silicon dioxide and slaked lime powder, and dicyclohexyl phthalate is selected as the stabilizer. The prepared fire extinguishing material is suitable for extinguishing the fire of an electric vehicle, a thickener component is sprayed into fire, a large amount of heat is consumed due to the dehydration of colloid slurry, the perfluoro(2-methyl-3-pentanone) in a water-based component absorbs heat and is vaporized, and the sodium silicate, the silicon dioxide and the slaked lime which are used as a flame retardant are combined to take away heat generated by the combustion reaction of a battery, so that the battery of the electric vehicle is effectively prevented from continuing to combust, a quick fire extinguishing effect is achieved, and the fire extinguishing material is simple in raw material and low in cost.

Description

technical field [0001] The invention relates to the technical field of fire extinguishing materials, in particular to a fire extinguishing material suitable for extinguishing fires in electric vehicles. Background technique [0002] In the field of battery manufacturing, lithium-ion batteries have become a typical representative of a new type of energy due to their low cost, high performance, high power and green environment. They are widely used in 3C digital products, mobile power supplies and power tools. . In recent years, due to the aggravation of environmental pollution caused by other tools of fuel vehicles and the guidance of national policies, the demand for lithium-ion batteries in the electric vehicle market dominated by electric vehicles has continued to increase. In the process of developing high-power lithium-ion battery systems, its The corresponding security issues have also attracted enough attention from the market and need to be further addressed urgently...

AI Technical Summary

Problems solved by technology

[0003] At present, most electric vehicles use lithium batteries. In addition to their own chemical reaction factors leading to thermal runaway, some human factors such as overheating, overcharging, and short circuits caused by mechanical shocks can also cause thermal instability of lithium-ion batteries and cause safety accidents. Because the lithium battery fire starts from the inside, and there will be a shell outside the lithium battery. This shell is well protected, sealed well, and dry powder fire extinguishers cannot be sprayed into the battery. Therefore, the traditional fire extinguishing agent material Not very effective in extinguishing electric vehicle fires

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