A fire-extinguishing agent capable of extinguishing the combustion of aluminum slag, and a preparation method therefor and the use thereof. The fire-extinguishing agent comprises the following raw materials: a sulfate, a chlorine salt, a mineral, a silica gel, a surfactant and a stearate. The main materials of sulfate and chlorine salt are solid waste containing sulfate and chlorine salt obtained by separating high-salt wastewater generated during a resynthesis process of a positive electrode material of a waste lithium battery. The solid waste containing sulfate and chlorine salt is used as a material for a fire-extinguishing agent, which can effectively recycle waste resources. The wastewater of a large amount and high salt content produced in the synthesis process of the positive electrode material of the waste lithium battery is separated and evaporated to obtain more solid wastes containing sulfate and chlorine salt, which can be used as the main material for preparing fire-extinguishing agents on a large scale.

The present composition for extinguishant mainly comprises of composite A and compound B; wherein said Composite A further comprises Compound C or Compound C and e-glass fibre and Compound B is water or deionized water; wherein further, said Compound C is in turn synthetic hydrated calcium silicate of density 60 to 450 kg/m.sup.3 preferably 90 to 400 kg/m.sup.3; which includes range of Tobermorite, Xenotlite and Wollastonite; said Compound C contains negligible amounts of Fe.sub.2O.sub.3 MgO and Al.sub.2O.sub.3. Said Composite A comprises of 93-96% Compound C and 7-4% e-glass fibre and Compound B is at room temperature. The wet composition of present composition for extinguishant comprises of 2% to 18% W/V of Composite A in Compound B, and dry composition for extinguishant comprises of Composite A: compound B=82-98%:18-2%.

A forest fire retardant composition contains a retardant compound that includes a phosphate salt. The phosphate salt may include diammonium phosphate, diammonium orthophosphate, monoammonium phosphate, monoammonium orthophosphate, monosodium phosphate, disodium phosphate, disodium phosphate hydrate, sodium ammonium phosphate, sodium ammonium phosphate hydrate, sodium tripolyphosphate, trisodium phosphate, or dipotassium phosphate, and combinations thereof. The forest fire retardant composition may include an ammonium source. The composition may be in the form of a dry concentrate, a liquid concentrate, or a final diluted product. The final diluted product is effective in suppressing, retarding, and controlling forest fires while exhibiting corrosion resistance and low toxicity.

A forest fire retardant composition contains a retardant compound that includes a phosphate salt. The phosphate salt may include diammonium phosphate, diammonium orthophosphate, monoammonium phosphate, monoammonium orthophosphate, monosodium phosphate, disodium phosphate, disodium phosphate hydrate, sodium ammonium phosphate, sodium ammonium phosphate hydrate, sodium tripolyphosphate, trisodium phosphate, or dipotassium phosphate, and combinations thereof. The forest fire retardant composition may include an ammonium source. The composition may be in the form of a dry concentrate, a liquid concentrate, or a final diluted product. The final diluted product is effective in suppressing, retarding, and controlling forest fires while exhibiting corrosion resistance and low toxicity.

A forest fire retardant composition contains a retardant compound that includes a halide salt, a non-halide salt, a metal oxide, a metal hydroxide, a sulfate salt, or combinations thereof. The forest fire retardant composition may include at least one anhydrous salt and at least one hydrate salt. The sulfate salt may be magnesium sulfate. The magnesium sulfate hydrate has a formula MgSO.sub.4(H.sub.2O).sub.x, where x is about 1 to about 11. For example, x may be equal to at least one of 1, 2, 3, 4, 5, 6, 7, 9, 10 or 11. The composition may be in the form of a dry concentrate, a liquid concentrate, or a final diluted product. The final diluted product is effective in suppressing, retarding, and controlling forest fires while exhibiting corrosion resistance and low toxicity.

Provided herein is a battery pack including a plurality of secondary batteries, a containing member, a protective member, and a wiring member. The plurality of secondary batteries include a plurality of terminals at each secondary battery. The containing member contains the plurality secondary batteries to expose the plurality of terminals. The protective member includes a plurality of openings, and the plurality of secondary batteries contained in the containing member are covered with the protective member to expose the plurality of terminals from the plurality of openings. The wiring member is coupled to the plurality of terminals exposed from the plurality of openings. One or both of the containing member and the protective member include one or both of a ceramic material and a polymer material having a heat resistance temperature of 300 C. or higher.

A pyrophosphate-free mixture with fire retardancy, including a mixture of non-polymer organic components, wherein at least a first compound of the mixture acts as a hydrogen-bridge donor and at least a second compound of the mixture acts as a hydrogen-bridge acceptor. The disclosure also relates to a method for preparing the fire-retardant mixture and to the use thereof as a fire retardant in extinguishing forest fires.

There is provided a battery pack including a plurality of secondary batteries, a containing member, a protective member, and a wiring member. The plurality of secondary batteries each include a plurality of terminals. The containing member contains the plurality of secondary batteries to expose the plurality of terminals. The protective member includes a plurality of openings, and the plurality of secondary batteries contained in the containing member are covered with the protective member to expose the plurality of terminals from the plurality of openings. The wiring member is coupled to the plurality of terminals exposed from the plurality of openings. One or both of the containing member and the protective member include one or both of a ceramic material and a polymer material having a heat resistance temperature of 300 C. or higher.

An exterior material for battery module or battery pack includes a metal layer including aluminum or an aluminum alloy and a fire extinguishing agent layer laminated on the metal layer and including a solid fire extinguishing agent for metal fires.

A method in aerial firefighting and to an aerial firefighting vehicle includes maintaining fire-extinguishing liquid in the aerial vehicle and maintaining solid liquid-absorbent preforms in the aerial vehicle. The method further includes subjecting at least part of the solid liquid-absorbent preforms to the fire-extinguishing liquid in the aerial vehicle such that the solid liquid-absorbent preforms subjected to the fire-extinguishing liquid absorb the fire-extinguishing liquid to form fire-extinguishing bombs from the solid liquid-absorbent preforms, the fire-extinguishing bombs being impregnated with the fire-extinguishing liquid, and releasing the fire-extinguishing bombs from the aerial vehicle for extinguishing or containing fire with the fire-extinguishing bombs.