202 results about "Hexafluorophosphate" patented technology

The invention belongs to the technical field of new materials, and discloses a polyolefin dissolving agent as well as a preparation method and application thereof. The cleaning agent is composed of modified long-carbon-chain imidazole dinitrile amine salt, modified long-carbon-chain imidazole long-carbon-chain anion salt, betaine salt, imidazole acetate, imidazole long-carbon-chain anion salt, quaternary ammonium long-carbon-chain anion salt, imidazole bis (fluorosulfonyl) imide salt, imidazole hexafluorophosphate and long-carbon-chain anion and cation liquid. Under the condition of 180-210 DEG C, polyolefin (PP or PE) with the molecular weight of 50-8 million can be dissolved by adopting the polyolefin dissolving agent disclosed by the invention, and effective extrusion can be realized by adopting a twin-screw extruder after dissolution. After PP / PE powder is dissolved by adopting the polyolefin dissolving agent disclosed by the invention, sheet casting or spinning is carried out, casting sheets or PP / PE fibers are washed by using ethanol / dichloromethane / hydrocarbon / tetrachloroethylene to remove ionic liquid, and a polyolefin diaphragm or polyolefin fibers can be prepared.

The application relates to a cylindrical battery monomer, a battery and a power utilization device. The cylindrical battery monomer comprises electrolyte, an electrode assembly and a shell. The shell contains the electrolyte and the electrode assembly. The electrolyte comprises an electrolyte salt, and the electrolyte salt comprises a hexafluorophosphate. The shell comprises a shell body and a film layer. The film layer is arranged on at least a surface of the shell body facing the electrode assembly. The base element of the film layer is a nickel element. The use reliability and the cycle performance of the cylindrical battery monomer in the embodiment can be improved.

The invention discloses an optical paste film and a preparation method thereof, and relates to the technical field of optical functional materials. The optical slurry film is prepared by taking a polyethylene glycol terephthalate film as a base material and coating an optical slurry coating, the optical slurry coating is prepared from the following raw materials in parts by weight: 12 to 16 parts of nano silicon dioxide, 22 to 28 parts of acetone and butanone mixed solvent, 7 to 9 parts of modified titanium dioxide, 4 to 6 parts of nano zirconium oxide, 30 to 35 parts of modified epoxy resin, 18 to 22 parts of butyl acrylate, 4 to 6 parts of dioctyl sebacate, 2.5 to 3.5 parts of silane coupling agent KH-570, 1 to 1.5 parts of organic silicon flatting agent and 0.6 to 1 part of organic silicon defoaming agent. 1.2-1.8 parts of an antioxidant 1010, 3-4 parts of a photoinitiator 184 and 6-8 parts of bis (4-tert-butylphenyl) iodine hexafluorophosphate; the polyethylene glycol terephthalate film pretreatment material comprises absolute ethyl alcohol and deionized water. The raw materials are scientifically proportioned, the titanium dioxide and the epoxy resin are clearly modified, the preparation process is complete, and the finished product is high in light transmittance, good in weather resistance, adaptive to the requirements of the optical field and high in practicability.

The invention belongs to the technical field of chemical production, and discloses an ionic liquid dissolving agent mixture as well as a preparation method and application thereof. The ionic liquid dissolving agent mixture is prepared from the following raw materials: modified long-carbon-chain imidazole tetrafluoroborate, modified long-carbon-chain imidazole long-carbon-chain anion salt, betaine salt, imidazole acetate, imidazole haloid, imidazole bis (fluorosulfonyl) imide salt, imidazole hexafluorophosphate, imidazole long-carbon-chain anion salt and quaternary ammonium long-carbon-chain anion salt. And pyridine halogen salts. When the ionic liquid dissolving agent mixture is used for dissolving PE powder and PP powder, a dichloromethane extracting agent can be replaced with water, cyclic utilization of the ionic liquid can be achieved, an original high-investment tail gas treatment device is eliminated, cost reduction and efficiency improvement are achieved for the industry, and meanwhile the performance of PE and PP diaphragms can be improved.

The invention relates to the technical field of rubber material preparation, and discloses a flame-retardant environment-friendly rubber material and a preparation method thereof. The preparation method comprises the following steps: carrying out ball milling on phosphamide bis-hexafluorophosphate ionic liquid and a carbon nanotube to obtain an ionic liquid modified carbon nanotube; and mixing with silicone rubber, a vulcanizing agent and the like, and vulcanizing to obtain the flame-retardant environment-friendly rubber material. The phosphamide bis-hexafluorophosphate ionic liquid contains a plurality of hexafluorophosphate ionic groups, and has a large interaction force with the carbon nanotubes, so the surface modification of the carbon nanotubes is effectively realized, the dispersibility of the carbon nanotubes in a silicone rubber matrix is improved, and the tensile property, hardness and other mechanical properties of the silicone rubber are improved. The ionic liquid contains phosphamide and imidazole groups to form a nitrogen-phosphorus flame retardant, and the nitrogen-phosphorus flame retardant and the carbon nanotubes play a synergistic flame-retardant role, so that the flame-retardant property of the rubber is remarkably improved.

Provided is an electrolyte solution which contains a bis(fluorosulfonyl) imide salt, a hexafluorophosphate, a compound that contains an anion represented by general formula (1), and a nonaqueous solvent, wherein: the ratio of the mass of the hexafluorophosphate to the mass of the bis(fluorosulfonyl) imide salt in the electrolyte solution is 0.45 or less; and the content of the compound that contains an anion represented by general formula (1) is 0.03 mass% or more in 100 mass% of the electrolyte solution.　General formula (1): R1SO3 - (R1 represents a halogen atom.)

The invention provides a system and method for separating lithium in oil field brine, and the system comprises an extraction unit which is used for carrying out extraction and phase separation on the oil field brine and an extraction system, the main extraction agent is prepared from at least one of 1-hexyl-3-butylimidazole hexafluorophosphate, 1-hexyl-3-butylimidazole bis (trifluoromethanesulfonimide) salt, 1-octyl-3-butylimidazole hexafluorophosphate, and 1-octyl-3-butylimidazole bis (trifluoromethanesulfonimide) salt; the main extraction agent is prepared from at least one of the following components: 1-hexyl-3-butylimidazole hexafluorophosphate, 1-hexyl-3-butylimidazole bis (trifluoromethanesulfonimide) salt; the elution unit is communicated with the extraction unit and is used for mixing and eluting the organic phase obtained by the extraction unit and an eluent to obtain a water phase and an organic phase; and the reverse extraction unit is communicated with the elution unit and is used for mixing the organic phase obtained by the elution unit with a reverse extraction solution and performing reverse extraction to obtain an organic phase and a water phase, and the water phase is a lithium-containing solution. According to the method, the specific ionic liquid extraction agent is used for extracting the lithium in the oil field brine, acid and alkali are not needed to regulate the pH value, an emulsification phenomenon is avoided in the extraction process, and the extraction rate and the total recovery rate of the lithium ions are relatively high.

The invention discloses a fluorine release film for a high-viscosity silica gel protective film of an AF glass screen and a preparation method of the fluorine release film, and belongs to the technical field of unsaturated polyester, raw materials are uniformly mixed and coated on a PET base material, during high-temperature heat preservation, part of double bonds on a modified release agent and a modified filler can react with silicon-hydrogen bonds on hydrogen-containing silicone oil under the action of chloroplatinic acid, so that the fluorine release film is formed. The modified filler and the modified release agent are grafted by residual double bonds on the modified filler and the modified release agent under the action of 2, 4, 6-trimethylbenzoyl-diphenyl phosphine oxide through ultraviolet irradiation, so that the modified filler is more thoroughly contacted with polymer molecules, a stable conductive grid can be formed during raw material curing, and the conductivity of the conductive grid is improved. Meanwhile, under the action of triphenyl sulfonium hexafluorophosphate, an expanding monomer DB-TOSU is subjected to double-ring-opening polymerization to form bicyclic acetal, the bicyclic acetal is converted into carbonyl and hydroxyl, and the carbonyl and hydroxyl are matched with a polyhedral oligomeric silsesquioxane structure on the modified filler, so that the smoothness of the surface of the release film is ensured.

The invention relates to the technical field of adhesive preparation and application, in particular to a high-voltage-resistant damp-heat-resistant organosilicon sealant for a new energy power system. The organic silicon sealant is prepared from a component A, a component B and a platinum-ionic liquid catalyst, the component A is prepared from the following components: modified boron-nitrogen heterocyclic polysiloxane, a fluorine-containing siloxane composite filler, 3-epoxypropoxy propyl triethoxy silane and 2, 5-dimethyl hexynediol; the component B is prepared from the following components: hydrogen-terminated silicone oil, perfluorononyl polydimethylsiloxane, nano zinc oxide and gamma-methacryloxy propyl trimethoxy silane; and the platinum-ionic liquid catalyst is prepared from chloroplatinic acid and 1-butyl-3-methylimidazolium hexafluorophosphate. The high-pressure-resistant damp-heat-resistant organic silicon sealant provided by the invention has better heat-conducting property and high-pressure resistance, after 1200h damp-heat aging treatment, the retention rates of the heat conductivity and the volume resistivity are both greater than 91%, and the sealant has good extreme damp-heat weather resistance.

The invention relates to a manufacturing method of a photodynamic antibacterial fiber membrane for masks, which is characterized by comprising the following steps: step 1, preparing 1-methyl-5-(4-methoxyphenyl) quinoline; step 2, preparation of 1-methyl-5-(4-methoxyphenyl) quinolinium hexafluorophosphate; step 2, preparation of 2-methyl-5-(4-methoxyphenyl) quinolinium; and step 3, preparation of an electrostatic spinning fiber membrane: polylactic acid and polyethylene glycol are dissolved in a solvent, the target product is added to form a spinning solution, and the spinning solution is used for electrostatic spinning to form the electrostatic spinning fiber membrane. According to the invention, the photodynamic antibacterial fiber membrane with excellent stability, biodegradability, reusability and antibacterial efficiency can be prepared. Compared with a traditional non-woven fabric mask, the fiber membrane shows higher bacterium adsorption and killing capacity in air containing various bacteria by means of the high specific surface area of the fiber membrane and the synergistic effect of the high-activity antibacterial agent 5-MPQ-Me.

The invention aims to provide a preparation method and application of a blue-light CsPbBr3 perovskite quantum dot, and belongs to the technical field of quantum dot preparation. According to the method, 1-ethyl-3-methylimidazolium hexafluorophosphate molecules are introduced to the surfaces of the quantum dots by using a heterogeneous ligand exchange strategy, and passivation of surface defects of the quantum dots and inhibition of Auger recombination are realized at the same time, so that the optical performance and stability of the quantum dots are improved, and the photoluminescence quantum yield is increased from 78% to 92%; according to a blue light emitting diode prepared based on the CsPbBr3 quantum dot, the maximum external quantum efficiency of 20.02% is achieved under the brightness of 6441 cd / m < 2 >, and the external quantum efficiency of nearly 19% is still achieved under the high brightness of nearly 10000 cd / m < 2 >; under the initial brightness of 106 cd / m < 2 >, the running half-life period of about 700 minutes is obtained; the preparation of the blue-light perovskite quantum dot light-emitting diode with high external quantum efficiency, high brightness, long service life and low efficiency roll-off is realized.

The invention discloses an extraction head and a method for detecting organochlorine pesticides in water by using the extraction head. According to the preparation method, 4-hydroxycarbazole is taken as a functional monomer for electro-polymerization, (benzotriazole-1-yloxy) dipyrrolidine carbon hexafluorophosphate ionic liquid (IL) is taken as a doping medium, and the composite extraction coating is obtained in an electrochemical co-deposition mode. The polymerization 4-Hydroxycarbazole-IL (HBPyU) with the ionic liquid concentration of 25 mu g / mL, the salt solution of 35% saturated sodium chloride solution, the stirring rate of 600 r / min, the extraction temperature of 50 DEG C and the extraction time of 30 min is used as an optimal extraction head, and organochlorine pesticides Hepache and Quintozene in water are analyzed and detected. Therefore, according to the technical scheme, compared with an extraction head only provided with a monomer, the coating material added with the ionic liquid has the best extraction capacity on an analyte, and the beneficial effects of high efficiency and high sensitivity are achieved.

Disclosed is a nonaqueous electrolyte solution for a secondary battery, the nonaqueous electrolyte solution containing a hexafluorophosphate, a compound represented by formula (1), and a nonaqueous solvent.　(1): FSO2NHR1 [In formula (1), R1 represents a hydrogen atom or an optionally substituted hydrocarbon group having 1 to 18 carbon atoms.]

The invention discloses a preparation method and application of a compound with a cold sensing regulation effect, which comprises the following steps: dissolving tryptophan in methanol, adding concentrated sulfuric acid, esterifying the acid to protect carboxyl so as to obtain tryptophan methyl ester, dissolving the obtained tryptophan methyl ester and aromatic carboxylic acid substances in N, N-dimethylformamide, and reacting to obtain the compound with the cold sensing regulation effect. The method comprises the following steps: catalyzing 2-(7-azabenzotriazole)-N, N, N ', N'-tetramethylurea hexafluorophosphate and N, N-diisopropylethylamine, dissolving a catalyzed product in ethanol (98%), adding into a NaOH solution, stirring, carrying out rotary evaporation treatment, slowly dropwise adding a 0.5 mol / L hydrochloric acid solution, adjusting the pH value of a reaction system to 3-4, and finally obtaining the tryptophan derivative compound with the yield of 70%. The invention provides a potential medicine for improving the working ability and cold injury in the cold environment for people living and working in the cold environment, and is developed into a medicine for effectively improving neuropathic pain diseases in the cold environment.

A degassing device and method for liquid lithium hexafluorophosphate, the degassing device comprising: a scraper evaporator (E201), a post-degassing concentration and collection tank (V301), a condenser (E202), a solvent collection tank (V303) and a vacuum pump (P103), wherein the scraper evaporator (E201) is connected to a conveying line for raw liquid lithium hexafluorophosphate. The raw liquid lithium hexafluorophosphate is heated by the scraper evaporator (E201) and undergoes a rotational centrifugal force of same; thus, part of the liquid is vaporized, and the vaporized material is conveyed into the condenser (E202). The unvaporized liquid is conveyed to the post-degassing concentration and collection tank (V301). An output end of the condenser (E202) is connected to the solvent collection tank (V303), and a gas-phase output end of the solvent collection tank (V303) is connected to the vacuum pump (P103). Thus, an efficient and excellent degassing effect is achieved, it is ultimately ensured that the content of hydrogen chloride in liquid lithium hexafluorophosphate after a degassing treatment is less than 10 ppm, and the performance of the liquid lithium hexafluorophosphate when used as a component of an electrolyte in lithium ion batteries is also ensured.

The invention discloses a catalyst for synthesizing 1, 3-dioxane-2-ketone as well as a preparation method and application of the catalyst. The catalyst is prepared from the following components in percentage by mass: 60wt%-90wt% of a component A, 5wt%-20wt% of a component B and 5wt%-30wt% of a component C, wherein the component A is one or more of N, N-dimethyl formamide, N, N-dimethylacetamide, N, N-diethyl formamide and urea, and the component B is one or more of N, N-dimethyl formamide, N, N-dimethylacetamide, N, N-diethyl formamide and urea; the component B is one or more of lithium carbonate, sodium carbonate, potassium carbonate, cesium carbonate, calcium carbonate and magnesium carbonate; and the component C is 1-butyl-3-methylimidazolium tetrafluoroborate and / or 1-butyl-3-methylimidazolium hexafluorophosphate, and the component C is 1-butyl-3-methylimidazolium hexafluorophosphate. According to the present invention, the components of the catalyst have the mutual synergistic promotion effect, the reaction substrate can be adsorbed and activated, the reaction condition is mild, the product yield is high, the catalyst can be recovered and regenerated, and the environmental pollution is low.

The present invention relates to the technical field of security features comprising markers by means of surface enhanced Raman spectroscopy (SERS) and the detection thereof. Furthermore, the present invention relates to the field of UV-Vis curable security inks comprising SERS tags, said inks being used for printing security features on substrates, in particular security documents or articles, wherein the ink comprises i) one or more surface enhanced Raman spectroscopy (SERS) tags, ii) one or more vinyl ether-containing compounds, iii) one or more cationic radiation-curable compounds different from the one or more vinyl ether-containing compounds of ii), and iv) one or more cationic photoinitiators that are hexafluorophosphates.

The present application relates to the technical field of lithium ion battery, especially to an electrolyte and a lithium ion battery. The electrolyte provided by the present application comprises a lithium salt, a solvent, a diluent and an additive; the solvent comprises a compound containing at least one ester bond and / or at least one ether bond; the diluent comprises a fluorinated aromatic ether; and the additive comprises a compound containing a hexafluorophosphate group. The electrolyte of the present application uses a compound containing an ester bond and / or an ether bond as a solvent, so that it has excellent oxidation resistance and reduction capacity; the addition of a fluorinated aromatic ether makes it easier to form a SEI film rich in LiF on the lithium surface; the compound containing a hexafluorophosphate group can be preferentially decomposed on the surface of the positive and negative electrodes, thereby improving the interface stability, hindering the decomposition of the electrolyte, easily forming a passivation layer on the surface of the positive electrode, and inhibiting the corrosion effect of the lithium salt on the current collector at high voltage; thereby meeting the use requirements of the high-nickel-lithium metal system battery of the high-voltage system.

The invention relates to a liquid electrolyte for an alkali metal (M) ion secondary battery. The electrolytes disclosed herein comprise a non-aqueous solvent, an alkali metal (M) salt other than an alkali metal hexafluorophosphate (MPF6), and water present in an amount of 20 to 5000 ppm based on the total amount of the electrolyte. The electrolyte is free of alkali metal (M) hexafluorophosphate. Methods of making the liquid electrolyte, electrochemical cells comprising the liquid electrolyte, and electrochemical energy storage devices comprising the electrochemical cells are also disclosed. Also disclosed is the use of a composition comprising a non-aqueous solvent and an alkali metal (M) salt other than an alkali metal (M) hexafluorophosphate (MPF6), said composition being free of an alkali metal (M) hexafluorophosphate MPF6, as a water-insensitive liquid electrolyte.

The invention provides a preparation method of an organic carbonyl cobalt compound, which comprises the following steps: preparing an acetonitrile solution taking 1-butyl-3-methylimidazolium hexafluorophosphate as a supporting electrolyte at a cathode of a double-cell electrolytic tank, and adding cobalt salt, metal nickel powder and 3, 3-dimethyl-1-butyne into the cathode; preparing dilute sulphuric acid for an anode; taking a carbon electrode of a copper-zinc catalyst as a working electrode for reduction reaction, a silver wire as a reference electrode and a platinum net as a counter electrode, connecting with an electrochemical workstation, introducing carbon dioxide into a cathode, controlling the flow rate to be 3-5mL / min, and applying constant potential for reaction; filtering after the reaction is finished, and performing post-treatment on the obtained filtrate to obtain a crude product; carbon dioxide is used as an alternative source of carbon monoxide, an electrochemical reduction method is used for replacing a reducing agent, the organic carbonyl cobalt compound is synthesized by a one-pot method under the action of the metal catalyst, the process is novel and simple, the condition is mild, and the synthesis efficiency is high.

A cylindrical battery cell, a battery, and an electric device. The cylindrical battery cell comprises a metal casing and an electrolyte; the electrolyte is contained in the metal casing; the electrolyte comprises an electrolyte salt; the electrolyte salt comprises hexafluorophosphate and sulfonimide salt; and the molar concentration of hexafluorophosphate is less than or equal to 0.9 mol / L. The use reliability and cycle performance of the cylindrical battery cell can be improved.

The invention provides a synthesis method of a Pol theta inhibitor, and relates to the technical field of organic synthesis, and the synthesis method comprises the following steps: (a) carrying out solution reaction on 2 '-chloro-5'-methoxy-6-methyl-[4, 4 '-bipyridyl]-3-carboxylic acid and 1-methyl-5, 6-dihydropyrazolo [1, 5-d] thiazolo [4', 5 ': 4, 5] benzo [1, 2-f] [1, 4] oxazine-10-amine in the presence of N-methylimidazole to obtain a reaction solution; first reaction liquid is obtained; (b) adding N, N, N ', N'-tetramethyl chloroformamidine hexafluorophosphate into the first reaction solution obtained in the step (a), and carrying out solution reaction to obtain a second reaction solution; and (c) extracting the second reaction liquid, concentrating and purifying to obtain the Pol theta inhibitor. The synthesis method provided by the invention achieves the technical effects of short process steps, environmental protection, convenient operation and simple post-treatment.

A cylindrical battery cell, a battery and an electric device. The cylindrical battery cell comprises an electrolyte, an electrode assembly and a casing, wherein the casing houses the electrolyte and the electrode assembly. The electrolyte comprises an electrolyte salt, and the electrolyte salt comprises hexafluorophosphate. The casing comprises a casing body and a film layer, the film layer is at least arranged on the surface of the casing body facing the electrode assembly, and the matrix element of the film layer is a nickel element. The operational reliability and cycle performance of the cylindrical battery cell in the embodiments can be improved.

The invention relates to the technical field of synthesis of hexafluorophosphate, in particular to a synthesis method and a synthesis system of liquid hexafluorophosphate. The synthesis method of the liquid hexafluorophosphate is a new process route, phosphorus trichloride is used as an initial raw material, and a reaction is carried out with a reaction kettle; phosphorus pentafluoride sequentially subjected to oxidation, fluorination, deep fluorination and solvent in-situ capture reacts with alkali metal fluoride to obtain liquid hexafluorophosphate; the whole technical route process has the advantages of controllability, low cost, greenness, high safety and few impurities.

The invention relates to a preparation method of liquid lithium hexafluorophosphate, which comprises the following steps: in a reactor, taking a non-aqueous organic solvent as a dispersing agent, taking simple substance phosphorus, phosphorus oxide (not containing hydrogen) or phosphorus halide as a phosphorus source, taking lithium halide as a lithium source, carrying out one-pot fluorination reaction on excessive F2-containing gas at 5-20 DEG C for 50-350 minutes, and carrying out flash evaporation to remove the solvent after the reaction is finished, so as to obtain a lithium hexafluorophosphate solid; and dissolving the solid product in an ester organic solvent, filtering, and removing impurities from resin to obtain the liquid lithium hexafluorophosphate. The method has the advantages of simple process flow, low cost, high fluorination efficiency, high product yield, high purity and the like.

The invention discloses a silicon carbide seed crystal bonding composition and a bonding method, and the silicon carbide seed crystal bonding composition comprises the following components in percentage by mass: 25-35% of resin, 30-40% of an ionic liquid getter and the balance of a solvent, wherein the ionic liquid getter is 1-hexyl-3-methylimidazolium glycine and / or 1-butyl-3-methylimidazolium hexafluorophosphate, and the ionic liquid getter is an ionic liquid getter. The imidazolium ionic liquid getter is added into the formula of the silicon carbide seed crystal bonding composition, so that gas generated in the high-temperature curing process of the bonding composition can be captured by the imidazolium ionic liquid getter through a hydrogen bond network; and a conjugated pi electron system of the imidazole ring can generate dipole-quadrupole moment interaction with gas molecules with quadrupole moment, so that the adsorption capacity is enhanced, and the problems that an organic adhesive in the prior art generates bubbles in a high-temperature curing process, the uniformity and stability of an adhesive layer are influenced, and then the subsequent growth of silicon carbide crystals is influenced are solved.

The invention discloses a production method of a hexafluorophosphate product, the hexafluorophosphate product is 2-(inner-5-norbornene-2, 3-dicarboximide)-1, 1, 3, 3-tetramethylurea hexafluorophosphate, the first-step reaction of the invention comprises the following steps: preparing an intermediate from norbornene dianhydride as a raw material and a hydroxylamine compound under the action of organic alkali; in the second-step reaction, the intermediate and TCFH are subjected to a nucleophilic substitution reaction under the action of an alkaline metal catalyst to obtain a crude product, and the crude product is purified to obtain a target product; the synthesis route used in the invention is simple, special high temperature or high pressure is not needed in the reaction process, and the used catalyst is a conventional raw material which is low in price and easy to obtain; according to the method, the purity of the product can be increased to 99.8% or above, the total yield is stabilized to be 85% or above, in addition, the reaction route greatly reduces side reactions, and by-products in the product are few in variety and low in content.

A method for generating / synthesising a metal hexafluorophosphate is disclosed which comprises dissolving ammonium hexafluorophosphate in tetrahydrofuran (THF) solvent, and flowing the resulting dissol

The invention discloses an extraction head for detecting malathion residues in agricultural products and a detection method applying the extraction head, the extraction head is a composite material of poly (5-amino indole pyrrole)-ionic liquid-porous nitrogen-doped graphene, and the ionic liquid is 1-butyl-3-methylimidazolium hexafluorophosphate. The extraction head has the beneficial effects that the extraction head made of the composite material has relatively good stability and repeatability, and can be used for rapidly detecting the residue of malafos sulfur in agricultural products.

The present invention discloses an ultrathin elastic solid electrolyte membrane and a preparation method thereof. The solid electrolyte membrane comprises an inorganic solid electrolyte coated with a polyionic liquid, a polymer matrix and a lithium salt; the inorganic solid electrolyte coated with the polyionic liquid accounts for 10 to 80% of the mass of the solid electrolyte membrane; the mass ratio of the polymer matrix to the lithium salt is 5:1 to 1:1; in the inorganic solid electrolyte coated with the polyionic liquid, the polyionic liquid accounts for 0.5-1% of the mass of the inorganic solid electrolyte; in the polyionic liquid monomer, the cation is 4-butylvinylimidazole, and the anion is any one of bistrifluoromethanesulfonic acid imide ion, bromide ion and hexafluorophosphate ion; the inorganic solid electrolyte is Li3Zr2Si2PO4 12 The polymer matrix comprises either PVDF or PVDF-HFP; the anion of the lithium salt is consistent with the anion of the polyionic liquid monomer. The ultrathin solid electrolyte membrane prepared by the present invention has a thickness of approximately 7 to 15 μm, is lightweight and uniform, has excellent elastic strength and stability, and can be produced on a large scale.