Lithium ion battery water-based fire extinguishing agent and preparation method

Abstract

The invention discloses a lithium ion battery water-based fire extinguishing agent which comprises the following raw materials: 18-30 parts of ethyl acetate, 45-70 parts of perfluorohexylsulfonyl fluoride, 8-15 parts of N, N-diethyl-1, 3-propane diamine, 8-15 parts of sodium hypochlorite, 1-3 parts of dibutyltin dilaurate, 25-50 parts of deionized water, 8-15 parts of sodium octylsulfonate, 12-28parts of potassium perfluorobutanesulfonate and 12-30 parts of diethylene glycol monobutyl ether. The invention further discloses a preparation method of the lithium ion battery water-based fire extinguishing agent. The principle that a perfluorohexyl polysaccharide copolymer covers and isolates oxygen is adopted, and an efficient fire extinguishing effect is achieved.

Description

technical field [0001] The invention relates to the field of fire protection, in particular to a lithium-ion battery water-based fire extinguishing agent and a preparation method. Background technique [0002] Lithium batteries, to be precise, are lithium-ion batteries, which are composed of positive electrodes, negative electrodes, electrolytes and separators. The negative electrodes of lithium-ion batteries are generally graphite, and the positive electrode materials include lithium cobalt oxide, lithium iron phosphate, lithium nickel cobalt aluminate, and lithium manganate. , nickel cobalt lithium manganate five kinds. [0003] When charging, the positive electrode, diaphragm, and negative electrode of the battery are often tightly attached together. The diaphragm only allows lithium ions to pass through, avoiding direct contact between the positive and negative electrodes. The negative electrode causes a large-area short circuit and continuously accumulates heat. When ...

AI Technical Summary

Problems solved by technology

[0004] The commonly used ABC type dry powder fire extinguishers are mainly filled with ammonium phosphate such as ammonium dihydrogen phosphate and ammonium sulfate and other additives, which do not have a cooling effect. Once the battery is in full contact with the air again, it is very easy to re-ignite. At present, there is no specific product.