160 results about "Hexafluorophosphate" patented technology

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 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 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.

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.

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 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.

The invention relates to a method for synthesizing quinolinone compounds by catalyzing aromatic aldehyde and o-aminoacetophenone through L-proline in a green solvent. According to the method, the specific green solvent (any one of 1-hydroxyethyl-3-methylimidazolium tetrafluoroborate, 1-hydroxyethyl-3-methylimidazolium hexafluorophosphate or a deep eutectic solvent consisting of choline chloride and glycerol) is adopted, so that the yield of the quinolinone compound synthesized from aromatic aldehyde and o-aminoacetophenone under catalysis of L-proline can be remarkably improved; and by adopting other green solvents (such as [BMIM] BF4, [BMIM] PF6 and the like), the yield is obviously reduced. In addition, the method does not need to use an organic solvent, meets the standard of green chemistry, and is simple to operate, mild in reaction condition and short in consumed time.

The invention discloses a hydrogen esterification reaction method taking carbon dioxide as a carbonyl source, and belongs to the field of organic synthesis of application of an electro-catalysis technology. A copper-zinc electrode is applied to carbon dioxide electroreduction, an acetonitrile solution with 1-butyl-3-methylimidazolium hexafluorophosphate as supporting electrolyte serves as a carbon dioxide electroreduction solution, dilute sulphuric acid provides a proton source for the carbon dioxide electroreduction solution, carbon dioxide is efficiently and selectively reduced into carbon monoxide mixed gas, the carbon monoxide mixed gas is subjected to a cascade reaction process, and the carbon dioxide is obtained. Removing redundant carbon dioxide from the generated mixed gas through a saturated KOH aqueous solution; and then directly introducing the mixture into an unsaturated hydrocarbon reactor, and directly synthesizing an esterification product in one step under the catalytic action of metal palladium and a phosphine ligand.

The invention belongs to the technical field of biochemistry, and relates to a ratio type probe compound, a preparation method thereof, a Cu (I) response photoacoustic probe composition and application. The preparation method of the ratiometric probe compound comprises the following steps: (1) reacting a compound (I), a compound (II), acetic acid and piperidine to obtain a compound (III); (2) reacting the compound (III) with trifluoroacetic acid to obtain a compound (IV); (3) carrying out a reaction on the compound (IV), the compound (V), 2-(7-azabenzotriazole)-N, N, N ', N'-tetramethylurea hexafluorophosphate and 1-ethyl-(3-dimethylaminopropyl) carbodiimide hydrochloride, so as to obtain a compound (VI); and (4) reacting the compound (VI), the compound (VII), acetic acid and piperidine to obtain the compound. The photoacoustic probe provided by the invention has excellent selectivity and high sensitivity.

The invention relates to an electromagnetic shielding composite material prepared from ionic liquid and ZIF-8 as well as a preparation method and application of the electromagnetic shielding composite material, and belongs to the technical field of materials for reflecting radiation and shielding electric fields and magnetic fields. The preparation method comprises the following steps: (1) introducing carboxyl on the surface of polypropylene fiber PP of the waste mask FM; (2) grafting 1-butyl-3-methylimidazolium hexafluorophosphate ionic liquid IL to the surface of the waste mask FM with the carboxyl group; (3) loading ZIF-8 on the IL shell layer in situ to obtain FM / ZIF-8 / IL with an adsorption effect; (4) adsorbing polytetrafluoroethylene (PTFE) nano plastic in the water body by utilizing FM / ZIF-8 / IL; and (5) carrying out hot pressing on the FM / ZIF-8 / IL adsorbed with the PTFE nano plastic to obtain the FM / ZIF-8 / IL electromagnetic shielding composite material. The ZIF-8 and IL with positive charges are used for synergistically adsorbing the PTFE nano plastic with negative charges in the water body, the waste masks and the nano plastic are further converted into a composite material with an electromagnetic shielding function, and the effect of turning waste into wealth is achieved.

The application discloses a high-performance epoxy resin adhesive based on boron trifluoride monoethylamine and a preparation and use method thereof. By adding specific triarylsulfonium hexafluorophosphate in the boron trifluoride monoethylamine epoxy resin system, a protonic acid is generated to act on the epoxy group to generate an activated monomer. The activated monomer and the boron trifluoride monoethylamine synergistically act to effectively avoid the generation of low-molecular oxygen-containing cyclic by-products in the boron trifluoride monoethylamine epoxy resin system, solve the problem of poor mechanical properties of the existing epoxy resin adhesive based on boron trifluoride monoethylamine, and significantly shorten the preliminary curing time of the adhesive due to the action of light, effectively avoid the slippage of the adhesive, and realize the pre-bonding. By adding nano metal, the cohesive energy in the system is reduced, and the adhesion of the epoxy resin adhesive to the metal surface is enhanced. In addition, by optimizing and screening the formula, the proportion of triarylsulfonium hexafluorophosphate and boron trifluoride monoethylamine in a specific range is regulated, the generation of low-molecular cyclic epoxy by-products in the system is maximally inhibited, the complete curing of the epoxy resin adhesive is realized, the epoxy resin adhesive reaches the best mechanical properties, and the problems of poor mechanical properties of the existing epoxy resin adhesive based on boron trifluoride monoethylamine and the like are solved.

To provide a magnetoviscous fluid that can achieve both high reliability and high excitation stress even when used at low or high temperatures, and a braking device equipped with such a magnetoviscous fluid. [Solution] A magnetorheological fluid comprising metal magnetic particles modified with an ionic liquid modification site containing a first cationic group and a first anionic group, and an ionic liquid dispersion medium containing a second cationic group and a second anionic group, wherein the first cationic group and the second cationic group are of the same type and are selected from the group consisting of quaternary ammonium ions, imidazolium ions, pyridinium ions and phosphonium ions, and the first anionic group and the second anionic group are selected from the group consisting of tetrafluoroborate ions, hexafluorophosphate ions, trispentafluoroethyltrifluorophosphate ions, bis(trifluoromethanesulfonyl)amide ions, hydrogen phthalate ions and bissulfurylimide ions.

The application discloses a preparation method of a flame-retardant lithium hexafluorophosphate organic solution, lithium hexafluorophosphate and a lithium battery. The preparation method comprises the following steps: mixing and reacting a lithium hexafluorophosphate salt and a benign flame-retardant solvent solution containing a lithium compound to obtain a lithium hexafluorophosphate solution with a flame-retardant effect, wherein the benign flame-retardant solvent comprises at least one of a phosphate ester and a phosphite ester; removing part of the solvent in the lithium hexafluorophosphate solution with the flame-retardant effect to obtain a concentrated solution; adding a carbonate to the concentrated solution to remove impurities; and then removing the carbonate to obtain the flame-retardant lithium hexafluorophosphate organic solution. The preparation method of the flame-retardant lithium hexafluorophosphate organic solution provided by the application does not require a strict anhydrous and anaerobic reaction environment, and the reaction speed is fast. The obtained flame-retardant lithium hexafluorophosphate organic solution does not need to go through processes such as drying, crystallization and dissolution, and can be directly used in a battery and has a certain flame-retardant property. The performance of the flame-retardant lithium hexafluorophosphate organic solution is similar to that of a commercial electrolyte.

The application belongs to the technical field of biochemistry, and relates to a ratio type probe compound, a preparation method thereof, a Cu(I) response photoacoustic probe composition and application. The preparation method of the ratio type probe compound comprises the following steps: (1) reacting compound (I), compound (II), acetic acid and piperidine to obtain compound (III); (2) reacting compound (III) and trifluoroacetic acid to obtain compound (IV); (3) reacting compound (IV), compound (V), 2-(7-azabenzotriazole)-N,N,N',N'-tetramethyluronium hexafluorophosphate and 1-ethyl-(3-dimethylaminopropyl) carbodiimide hydrochloride to obtain compound (VI); and (4) reacting compound (VI), compound (VII), acetic acid and piperidine to obtain the compound. The photoacoustic probe provided by the application has excellent selectivity and high sensitivity.