57 results about "Sodium hexafluorophosphate" patented technology

The invention relates to an organic anode used for a sodium carbon dioxide battery and a manufacturing method thereof, and the sodium carbon dioxide battery. The organic anode comprises a catalyst, anorganic electrolyte for activating the catalyst and providing sodions, a conductive additive and a binder. The organic electrolyte comprises one of a sodium perchlorate electrolyte, a sodium trifluoromethanesulfonate electrolyte, a sodium bis(trifluoromethanesulfonyl)imide electrolyte and a sodium hexafluorophosphate electrolyte. The catalyst comprises at least one of graphite, activated carbon,Ketjen black, carbon fibers, carbon nano angles, carbon nanotubes, graphene, a modified carbon material and other porous active materials. The organic electrolyte activation catalyst can effectively accelerate a transmission rate of ions and electrons and conductivity is improved.

The invention discloses a non-aqueous electrolyte for a sodium ion secondary battery and with a function of restraining aluminum foil corrosion of a positive electrode current collector. The non-aqueous electrolyte comprises sodium bis(fluorosulfonyl)imide, a functional additive sodium perchlorate and / or sodium hexafiuorophosphate. The invention also discloses the sodium ion secondary battery comprising the non-aqueous electrolyte, and a preparation method and an application of the sodium ion secondary battery.

The invention discloses a high-strength welding clamp surface treatment method. The high-strength welding clamp surface treatment method comprises the following operation steps that firstly, a hydrochloric acid solution is evenly scattered to the surface of a welding clamp, 10 minutes later, the surface is washed through clean water, and pre-shot blasting liquid is used for being evenly sprayed tothe surface of the welding clamp, wherein the pre-shot blasting liquid is composed of, by weight, 9-13 parts of sodium phosphate, 5-7 parts of ammonium hydroxide, 2-4 parts of benzyl trimethyl ammonium iodide, 1-3 parts of sodium hexafluorophosphate, 4-6 parts of sodium polysulfide and 190-200 parts of water; and secondly, a peening machine is used for spraying ceramic pills to the surface of thewelding clamp, wherein the average diameter of the ceramic pills is 500 microns, the spraying angle is 90 degrees, and the distance between a nozzle and a sample is 180 mm. By means of the high-strength welding clamp surface treatment method, by treating the surface of the welding clamp, the strength of the welding clamp can be effectively improved, the abrasion resisting performance of the welding clamp is greatly improved, and the service life of the welding clamp is effectively prolonged.

The invention discloses an electrolytic preparation method for a composite phosphating film. A composite phosphating film treating fluid mainly consists of phosphoric acid, nitric acid, zinc oxide, nickel sulfate, sodium phytate, sodium hexafluorophosphate, succinic acid, ammonium phosphomolybdate, hydroxylamine sulphate, cerium nitrate, hydrogen peroxide and water, and can be used for cold machining and machine manufacturing. According to the preparation for the composite phosphating film disclosed by the invention, an inert material is taken as a working electrode, and a special current applying method is adopted to treat to form an organic phosphating-inorganic phosphating composite protective layer which is excellent in performance and is doped with rare-earth elements on the surface of a workpiece substrate. During operation and use, the electrolytic preparation method has the characteristics of a medium-low temperature, short treatment time and high film-forming efficiency; and atreated workpiece has excellent stretching ductility and excellent extruding property, and can be popularized to various precise forming pre-treatment processes.

A material (hereinafter referred to as “positive electrode material”) including sodium manganate powder as a positive electrode active material, carbon black powder as a conductive agent, and polytetrafluoroethylene as a binder is prepared. The positive electrode material is mixed in an N-methylpyrrolidone solution to produce slurry as a positive electrode mixture. A working electrode is produced by applying the slurry on a positive electrode collector. A negative electrode containing tin or germanium is produced. The non-aqueous electrolyte is produced by adding sodium hexafluorophosphate as an electrolyte salt in a non-aqueous solvent produced by mixing ethylenecarbonate and diethyl carbonate.

The invention provides a preparation method of a lithium-ion battery. The electrolyte of the lithium-ion battery includes ethylene sulfate and sodium hexafluorophosphate as additives, wherein ethylene sulfate accounts for 0.5-3% of the total volume of the electrolyte. %, the concentration of sodium hexafluorophosphate in the electrolyte is 0.001-0.02mol / L, wherein the formation method includes the first step of formation under the atmosphere of high concentration carbon dioxide, and under the atmosphere of low concentration or zero concentration carbon dioxide In the second step of chemical formation, a stable SEI film is formed by the method of the present invention, which avoids an increase in internal resistance and reduces the volume expansion rate of the battery after cycling, especially in a high-temperature environment.

The invention relates to a method for producing calcium fluoride from waste LCD panel glass etching solution, which comprises the following steps in turn: take a certain amount of waste LCD panel glass etching solution, add sodium fluoride solid, and fully stir to make hexafluoride in the waste liquid Complete reaction of silicic acid and sodium fluoride to generate sodium hexafluorosilicate and hydrofluoric acid, complete reaction of hexafluoroaluminate and sodium fluoride to generate sodium hexafluoroaluminate and hydrofluoric acid, and then add ammonia water to react to generate silicon dioxide , sodium fluoride and ammonium bifluoride, so that sodium hexafluoroaluminate and the remaining sodium hexafluorosilicate settle rapidly, then filter the precipitate, take the supernatant and add it to the calcium hydroxide suspension until pH = 5 to stop, and make the hydrogen Calcium oxide completely reacts with hydrofluoric acid to generate calcium fluoride, then add calcium hydroxide suspension to make sodium fluoride and ammonium bifluoride react with calcium hydroxide to generate calcium fluoride, then add polyacrylamide solution, precipitate, filter and washing, and finally drying to obtain calcium fluoride solid. The purity of calcium fluoride can reach more than 95%.

The invention discloses a class of camphor-based imidazole type ionic liquid, its preparation method and application. The present invention uses camphorsulfonic acid, a derivative of camphor, which is a natural renewable resource, as a raw material to prepare 10-iodated camphor; 10-iodated camphor reacts with aryl imidazole in a quaternization reaction to obtain camphor-based imidazole iodized salt; camphor Ion-exchange imidazole iodide salt with sodium hexafluorophosphate, sodium tetrafluoroborate, bis(trifluoromethanesulfonimide) lithium, etc. to obtain camphor-imidazole hexafluorophosphate and camphor-imidazole tetrafluoroborate , Camphor-based imidazole bis (trifluoromethanesulfonimide) salt plasma liquid. Camphor-based imidazole-based ionic liquids exhibit good catalytic activity for the oxidative esterification of aldehyde-alcohols, and have the advantages of short reaction time, good reaction selectivity, and high product yield, and have good application prospects.