119 results about "Trimethylsilane" patented technology

The invention provides a low-temperature sodium-ion battery containing a modified negative electrode as well as a preparation method and application of the low-temperature sodium-ion battery. The low-temperature sodium-ion battery comprises a positive electrode, a negative electrode and an electrolyte, the negative electrode comprises negative electrode slurry, and the negative electrode slurry comprises an active substance, conductive carbon, sodium carboxymethyl cellulose and butadiene styrene rubber; the active substance comprises modified hard carbon; the modified hard carbon is prepared by oscillating and mixing hard carbon with a single-walled carbon nanotube, graphite carbon and soft carbon to obtain physical coating, further oscillating and mixing with the doped modified precursor powder, and calcining at high temperature to complete element doping and chemical coating; and the electrolyte comprises an additive selected from trimethylsilyl nicotinate, methyl 4-hydroxy-3-methoxycinnamate and the like. On one hand, the adhesive force of the negative electrode slurry on the current collector is improved, on the other hand, the solvent formula is optimized, the desolvation ability of sodium ions in the electrolyte is improved, the viscosity is reduced, and the additive is added to modify an electrode surface interface film, so that the charge-discharge performance of the battery at low temperature is improved.

The application relates to the technical field of cosmetics, in particular to a high-concealment makeup-maintaining air cushion and a preparation method thereof. A film forming agent in the high-concealment makeup-maintaining air cushion comprises the following: trimethylsiloxy silicate 5-7 parts, isododecane 0.3-0.7 parts, and acrylic acid (ester) / polymethyltrimethicone methacrylate copolymer 2-3 parts. A colorant comprises the following raw materials in parts by weight: titanium dioxide 5-7 parts, silica 0.8-1.2 parts, mica powder 5-7 parts, CI 77492 0.4-0.8 parts, aluminum hydroxide 0.8-1.2 parts, CI 77491 0.4-0.6 parts, triethoxyl octyl silane 0.8-1.2 parts, and CI 77499 0.3-0.5 parts. The particle size of the titanium dioxide at least comprises any two of 4 nm, 30-50 nm and 200-260 nm. The air cushion has the advantages of prolonging the makeup-maintaining time of the air cushion and improving the concealment effect.

The invention discloses a sodium ion battery electrolyte as well as a preparation method and application thereof, and belongs to the technical field of sodium ions. The sodium ion battery electrolyte provided by the invention comprises a sodium salt, an organic solvent, a main additive and an auxiliary additive, the main additive is one or more of sodium difluorophosphate NaDFP, sodium tetrafluoroborate NaBF4, sodium trifluoroacetate NaTFA or sodium nitrate NaNO3, and the auxiliary additive is one or more of sodium difluorophosphate NaDFP, sodium tetrafluoroborate NaBF4, sodium trifluoroacetate NaTFA or sodium nitrate NaNO3. According to the present invention, one or more of tris (trimethylsilane) borate TMSB, tris (trimethylsilane) phosphate TMSP, (pentafluorophenyl) silane TPFS or tris (trimethylsilane) phosphite TMSPi are adopted, the circulation capacity retention rate in a wide temperature range is significantly improved through the synergistic mechanism in a certain proportion range, the capacity retention rate is high at a high rate of 10 C and above, the rapid charging performance is provided, and the application prospect is broad. The cost is reduced; and commercialization is promoted.

The invention relates to a low-expansion moisture-resistant electronic component packaging resin adhesive and a preparation method thereof, and belongs to the technical field of high polymer materials. The resin adhesive comprises the following components: modified resin, phenyl methyl organic silicon resin, epoxy vinyl resin, a dynamic functional curing agent, a microencapsulated dicyandiamide curing agent, perfluorooctyltriethoxysilane, functional filler and the like; the modified resin is obtained by modifying hydrogenated bisphenol A epoxy resin with hydrogen-terminated polydimethylsiloxane and trimethylsiloxy silicate ester, adding a silane coupling agent and mixing; the dynamic function curing agent is obtained by reacting hexamethylenediamine and intermediate powder obtained by reacting 2, 3-dihydroxy benzaldehyde with pinacol borane; the functional filler comprises silicon dioxide and boron nitride which are subjected to surface treatment by a silane coupling agent. The low-expansion and high-moisture-resistance electronic component packaging resin adhesive is prepared from the components according to a specific ratio and a specific method, the components have a synergistic effect and play advantages, and the packaging reliability and the service life of an electronic component are guaranteed.

The present invention provides a method for selecting an inorganic filler, which can select an inorganic filler suitable for use in combination with a silane coupling agent using a functional group present on the filler surface as an index, and a method for producing a surface-treated inorganic filler and a method for producing a composite material using the selected inorganic filler. [Solution] The method for selecting an inorganic filler is a method for selecting an inorganic filler having a hydroxyl group, and includes the steps of: reacting the inorganic filler having a hydroxyl group with a trimethylsilylating agent to obtain an inorganic filler having a trimethylsilyl group; measuring the carbon concentration in the inorganic filler having a trimethylsilyl group by elemental analysis and calculating the concentration A of trimethylsilylated hydroxyl groups in the inorganic filler having a trimethylsilyl group based on the carbon concentration; and selecting an inorganic filler having a hydroxyl group based on the hydroxyl group concentration A.

The invention discloses a preparation method and application of a silicon-based functionalized fluorenyl polysubstituted acetylene copolymer and a gas separation membrane thereof. Belongs to the technical field of polymer material and gas separation. The invention provides a new thought for preparation of a high-permeability gas separation membrane material. The preparation method comprises the following steps: carrying out copolymerization on 1-phenyl-2-(7-trimethylsilyl-9, 9-bis (trimethylsilyl-fluorene-2-yl) acetylene and 1-phenyl-2-(7-trimethylsilyl-9, 9-dimethyl-fluorene-2-yl) acetylene under the catalysis of TaCl5-n-Bu4Sn, so as to prepare a copolymer with high molecular weight; the preparation method comprises the following steps of: carrying out film casting on a solution of the nano-silver oxide, and then carrying out desiliconization treatment by using normal hexane / trifluoroacetic acid to obtain a gas separation membrane with the thickness of 100-220 microns, the specific surface area of 298-492 m / g and the total pore volume of 0.134-0.299 cm / g. The prepared separation membrane has the advantages that the COpermeability is up to 36,900 Barrer, the Opermeability is 19,800 Barrer, the thermal decomposition temperature exceeds 420 DEG C, the separation membrane can be used for separating gases such as COO, ON and the like, the preparation process is simple and convenient, and the industrial potential is realized.

A method of controlling stress variation in a layer including silicon oxycarbide formed using a capacitively coupled plasma enhanced chemical vapour deposition system. The method includes providing a chamber comprising a platen for supporting a substrate, placing a substrate, upon which a layer comprising silicon oxycarbide is formable, upon the platen, introducing a gas comprising oxygen into the chamber, introducing trimethylsilane gas into the chamber, generating a plasma within the chamber, maintaining a temperature at which deposition takes place to less than 275° C., maintaining a pressure within the chamber in the range 1.5-3 Torr, and depositing the layer upon the substrate with a deposition rate >1.5 μm / minute.

The present invention relates to the technical field of carbon nanotube modification, specifically a flame-retardant carbon nanotube conductive material and a preparation process thereof. The method comprises the following steps: S1: reacting chlorinated carbon nanotubes with 4-aminobenzophenone and DOPO in sequence to obtain DOPO-carbon nanotubes; S2: reacting chain polyphosphazenes with (1-hydroxyallyl)trimethylsilane and oxetane-3-thiol in sequence to obtain oxacyclic-chain polyphosphazenes; and S3: mixing DOPO-carbon nanotubes, oxacyclic-chain polyphosphazenes, and pyrrole to prepare the flame-retardant carbon nanotube conductive material.

The application discloses a trimethylsilane purification system containing dichlorosilane impurities, comprising a reaction rectifying tower and a purification rectifying tower, and discloses a trimethylsilane purification method containing dichlorosilane impurities. Trimethylsilane gas containing dichlorosilane impurities enters the reaction rectifying tower, and the trimethylsilane gas containing dichlorosilane impurities enters a reaction section to react. Dichlorosilane impurities react to generate silane gas and material containing tetrachlorosilane impurities. The silane gas is discharged from a tower top exhaust port of the reaction rectifying tower, and the material containing tetrachlorosilane impurities is discharged from a tower bottom discharge port of the reaction rectifying tower and enters the purification rectifying tower. The high-purity trimethylsilane is collected in a tower top collecting port through rectification in the purification rectifying tower. The dichlorosilane impurities in the trimethylsilane can be effectively removed through the method disclosed by the application, high-purity trimethylsilane with a purity of more than 99.99% is obtained, the yield is greater than 85%, and the process is simple and low in cost.

The present application relates to the technical field of foundation products, in particular to a foundation product with a two-phase film-forming system and a preparation method thereof, which is prepared from the following raw materials in terms of mass percentage: phase A: 0.1-5% of an organic silicon surfactant, 2-35% of a colorant, 0.02-20% of a silane film-forming agent, 0.01-55% of a conditioning agent, and 0.02-5% of a silicon-modified clay; phase B: 0.001-1% of a plant-derived film-forming agent, 1-20% of a polyhydric alcohol humectant, 0.1-2% of an inorganic salt, 0.1-2% of a preservative, and deionized water to make up the rest; the silane film-forming agent at least includes trimethylsiloxysilicate and polymethylsilsesquioxane; and the plant-derived film-forming agent at least includes a too-kui agave leaf extract. The foundation product with the two-phase film-forming system has good water resistance, skin adhesion, and durability, and the product has finer powder and better skin adhesion, thus better meeting the use requirements of consumers.

The invention relates to the field of batteries, and particularly discloses a reversed-phase micro-micelle electrolyte system for an aqueous battery as well as a preparation method and application of the reversed-phase micro-micelle electrolyte system. The electrolyte system is composed of tris (trimethylsilane) phosphate, isopropanol, metal salt and water, and a reverse micelle structure with the average hydration size of 1-2 microns is formed through molecular self-assembly among the components. The unique structure limits water molecules in micelles and near an electrode interface, and cooperates with a firm SiO2-P2O5 inorganic interface layer generated on the surface of an electrode in situ to jointly inhibit side reactions such as decomposition of water, so that an electrochemical stability window of an electrolyte system at-20-60 DEG C is 5.0-6.0 V. When the composite material is applied to a water-based zinc ion battery, the super-long cycle life under high voltage and wide temperature range can be realized at the same time, and a new scheme is provided for developing a water-based energy storage device with high performance and high safety.

The present disclosure relates generally to the field of synthetic organic chemistry. More specifically, the disclosure is directed to a continuous flow process for synthesis of azides from alcohols and peroxides, wherein the process comprises azidation with trimethylsilyl azide and a catalyst Amberlyst-15. It is a non-hazardous, mild and controlled reaction giving good yields of azides. The azides can be further employed for synthesis of medicinally and industrially useful chemicals.

The application relates to the technical field of sodium ion batteries, in particular to an electrolyte for a sodium ion battery and a sodium ion battery thereof. The electrolyte comprises organic solvents, sodium salts and additives in percentage by weight. The additives comprise malonic acid compounds, nitrile compounds and tris(trimethylsilyl) phosphate. The additives of the electrolyte comprise macromolecular malonic acid compounds, which can effectively react with alkaline substances on the surface of a positive electrode material, form a film on the positive electrode, slow down or prevent the decomposition of the electrolyte solvent by the alkaline substances; meanwhile, the tris(trimethylsilyl) phosphate and the nitrile compounds in the electrolyte can effectively inhibit the oxidation reaction of Fe and Ni in the positive electrode and prevent the reduction of Fe and Ni in the negative electrode; the above-mentioned joint action can effectively improve the cycle life of the sodium ion battery.

The invention discloses a multilayer polycyclic aromatic hydrocarbon organic membrane as well as a preparation method and application thereof. The preparation method comprises the following steps: cleaning and drying a polyacrylonitrile substrate; dropwise adding a poly [1-(trimethylsilyl)-1-propyne] solution on the polyacrylonitrile substrate, and carrying out spin coating to form a uniform supporting layer; the preparation method comprises the following steps: preparing pre-prepared hexa (tripyridine) hexaphenylbenzene polycyclic aromatic hydrocarbon into a hexa (tripyridine) hexaphenylbenzene polycyclic aromatic hydrocarbon monomolecular layer compressed film by adopting a Langeron film preparation instrument, and transferring the monomolecular layer compressed film to the surface of a polyacrylonitrile substrate spin-coated with a poly [1-(trimethylsilyl)-1-propyne] layer; the multi-layer polycyclic aromatic hydrocarbon organic membrane is obtained by repeating the monomolecular layer compression and horizontal contact transfer process, the efficient size exclusion effect is achieved, and the method has the advantages of high permeability, high selectivity, rapidness and low-cost preparation.

This invention discloses a sodium-ion battery electrolyte, belonging to the field of sodium-ion battery technology, comprising an organic solvent, a sodium salt, and additives; the organic solvent includes ethylene carbonate, propylene carbonate, methyl ethyl carbonate, and ethyl acetate; the sodium salt includes sodium hexafluorophosphate and sodium difluorosulfonylimide; the additives include fluoroethylene carbonate, vinylene sulfate, sodium difluorophosphate, sodium difluorooxalate borate, and tris(trimethylsilane)phosphate. The sodium-ion battery electrolyte of this invention, through precise adjustment of the solvent and sodium salt ratio, maintains high conductivity at extremely low temperatures, significantly raising the lower limit operating temperature of the battery to -70°C. Simultaneously, through the synergistic effect of the sodium salt and additives, a high-temperature resistant SEI film rich in inorganic components is formed, reducing side reactions at high temperatures and raising the upper limit operating temperature of the battery to 85°C, achieving a wide temperature range application of the battery from -70°C to 85°C.

The invention belongs to the technical field of chemical detection, and particularly relates to a sample pretreatment method and a GC-MS (Gas Chromatography-Mass Spectrometer) method for simply and rapidly detecting glycidol and monochloropropanol in heated cigarette aerosol. The invention provides a sample pretreatment method for simply and rapidly detecting glycidol and monochloropropanol in heated cigarette aerosol. The sample pretreatment method comprises the following steps: capturing particulate matters in the heated cigarette aerosol; mixing the trapping material trapping the particulate matters with ethyl acetate and an internal standard substance, extracting to obtain an extracting solution, and diluting with ethyl acetate; n, O-bis (trimethylsilyl) trifluoroacetamide is added for a derivatization reaction, and a solution to be detected is obtained. According to the present invention, the ethyl acetate is adopted to extract the sample, and the analysis can be performed through the simple dilution and BSTFA derivation, such that the sample pretreatment step is simplified, the volatility and the stability of the glycidyl, the 3-MCPD and the 2-MCPD are increased, and the analysis sensitivity of the target object is improved;

The application discloses a kind of anti-inflating inner tube rubber compositions and preparation method thereof, belong to rubber composition preparation technical field.The composition is composed of the following components: butyl rubber, modified ethylene-propylene-diene rubber, polyester nanofiber, soft carbon black, paraffin oil, silane coupling agent, activator, petroleum resin, antioxidant, vulcanizing agent, accelerator;The silane coupling agent is the mixture of silane coupling agent Si-69, gamma-(methacryloyloxy) propyl trimethyl silane and N-(beta-aminoethyl)-gamma-aminopropyl trimethyl (ethyl) oxysilane with mass ratio 2:1:1.The air retention and inflation stability of the composition can be greatly improved by modifying ethylene-propylene-diene rubber, limiting the proportion of butyl rubber, and limiting the substance and ratio of silane coupling agent, which improves the service life and safety performance of the inner tube.

This invention belongs to the field of organosilicon thermally conductive materials, and provides a liquid silicone rubber system for thermally conductive pads and its preparation method. The system comprises vinyl-terminated dimethyl polysiloxane, MQ / phenyl-enriched pre-crosslinked polysiloxane microgel, vinyltrimethoxysilane-modified hexagonal boron nitride, alumina, trimethylsilane-terminated dimethylsiloxane-methylhydrosiloxane copolymer, 1,3-divinyl-1,1,3,3-tetramethyldisiloxane zero-valent platinum complex, and 1-ethynyl-1-cyclohexanol, forming a two-component packaging. This system is advantageous in balancing thermal conductivity, electrical insulation, flowability, defoaming, softness and fit, and long-term stability, making it suitable for the preparation of thermally conductive pads.

The invention belongs to the technical field of organic electroluminescent materials, and particularly relates to a compound containing a methane derivative and an organic electroluminescent device.The central methane derivative of the series of compounds has certain flexibility, molecules are matched more tightly in the evaporation process, and the film-forming property of the material is good; meanwhile, substituent groups such as electron-withdrawing CF3, diimide and trimethylsilane are introduced into outer side groups of the series of compounds, so that the action of an external electric field on electrons can be inhibited, the electron polarizability is reduced, and the low refractive index requirement of the material is met.

The invention provides a repair process for a selective atomic layer. The repair process comprises the following steps: placing a semiconductor structure in an ALD reaction cavity, firstly introducing a first precursor to perform selective adsorption on the surface of a metal interconnection line, then introducing a second precursor to react with the first precursor adsorbed on the surface of the metal interconnection line, and repeating the steps of selective adsorption and reaction to obtain a metal atomic layer; wherein the first precursor is selected from bis (hexafluoroacetylacetone) copper (II) or (trimethylsilane methyl) copper (I); the second precursor is a reducing gas. According to the method, the specific chemical reaction between the specific precursor substance and the copper metal surface is adopted, high selectivity in the repairing process is achieved, then through the reduction reaction, the deposition reaction only occurs on the exposed surface of the copper interconnection line and in pores and gaps in the copper interconnection line and does not deposit on the dielectric layer, and then precise repairing is achieved.

The invention relates to the field of battery preparation metal, in particular to a method for prolonging the cycle life of a sodium metal battery, which comprises the following steps: (S1) electrolyte preparation: NaPF6 and NaBF4 are respectively weighed and placed in a mixed solvent of DEM, FEC and TFDA, DEM is ethylene glycol dimethyl ether, FEC is fluoroethylene carbonate, and TFDA is trimethylsilyl 2-(fluorosulfonyl)-difluoroacetate; placing the mixture in an ultrasonic cleaning machine; (S2) pretreating the sodium metal foil in an FSTC solvent, and forming a soft package battery with the positive plate after the solvent on the surface of the sodium metal foil is volatilized; the FSTC is 3-(fluorosulfonyl)-2-thiophene carboxylic acid methyl ester; (S3) injecting an electrolyte into the soft package battery; and (S4) carrying out process treatment on the soft package battery injected with the electrolyte to obtain a product. According to the method for prolonging the cycle life of the sodium metal battery, the problem that the cycle life of a sodium metal negative electrode is limited can be solved.

This invention discloses a α The electrosynthesis method of α-aminomethyltetrazole includes: using a platinum sheet as the cathode and a carbon rod as the anode, and employing ammonium tetrabutyltetrafluoroborate as the electrolyte under constant current catalysis, a one-pot coupling of a tertiary amine, an isonitrile, and azide trimethylsilane to prepare the α-aminomethyltetrazole. α The step involving the aminomethyltetrazole derivative, followed by post-treatment and column chromatography separation of the resulting reaction mixture, yields... α - Pure aminomethyltetrazole. This invention yields it through a single reaction step. α -Aminomethyltetrazole has fewer operating steps, avoids the use of large amounts of oxidants and additives, simplifies post-processing, and makes the product easy to separate.

The present invention relates to a high-temperature lithium-ion battery electrolyte and a lithium-ion battery containing the same. The present invention selects tris(trimethylsilyl) phosphate, 2-(3-(trifluoromethyl)-1H-pyrazol-1-yl)acetonitrile, and 1,2,3-trifluorobenzene as additives in the electrolyte. These three components can synergistically improve the high-temperature stability of the electrolyte, reduce the gases generated due to thermal decomposition and side reactions, thereby reducing the risk of abnormal increase in the internal pressure of the battery or battery swelling caused by gas generation during long-term storage at high temperature. At the same time, they can also reduce the influence of impurities in the electrolyte, improve the electrochemical window, help maintain the stability of the electrolyte at high temperature, and extend the battery life.

This invention belongs to the field of lithium-ion battery technology, specifically relating to a lithium secondary battery and its application. The battery pack includes alternating positive and negative electrodes, with the outermost layer of the battery pack being entirely positive electrodes, and a separator containing an electrolyte disposed between the positive and negative electrodes. The positive electrode comprises lithium manganese iron phosphate, and the electrolyte comprises an electrolyte, an organic solvent, and additives. The additives contain tris(trimethylsilane) phosphate, with a mass content of 0.5-3 wt%. This invention significantly improves the cycle stability of the battery and substantially enhances the cycle life of lithium secondary batteries using lithium manganese iron phosphate positive electrode materials.

The invention discloses a skin-attaching liquid foundation suitable for dry skin, which is prepared from water, modified inorganic toner, modified spherical titanium dioxide, modified flaky titanium dioxide, an emulsifier and trimethylsiloxy silicate ester, the modified inorganic toner is obtained by grafting disodium stearoyl glutamate on the inorganic toner by using a silane coupling agent, and the modified spherical titanium dioxide, the modified flaky titanium dioxide, the emulsifier and the trimethylsiloxy silicate ester are added into the modified inorganic toner to obtain the skin-attaching liquid foundation. The modified spherical titanium dioxide is obtained by grafting potassium myristate and a polyol humectant on spherical titanium dioxide by using a titanate coupling agent, and the modified flaky titanium dioxide is obtained by grafting trimethylsiloxy silicate ester on the surface of the flaky titanium dioxide by using a titanate coupling agent; the preparation method comprises the following steps: preparing modified inorganic toner, preparing modified spherical titanium dioxide, preparing modified flaky titanium dioxide, and mixing. The skin-fitting liquid foundation suitable for the dry skin has the effect of meeting the requirement of the dry skin.

This invention discloses a sunscreen film composition co-assembled with film-forming agents and powders and its application. The composition comprises the following raw materials in parts by weight: 0.5-2.9 parts of trimethylsiloxysilicate, 0.4-2.1 parts of polysiloxane-15, 0.2-1.2 parts of silica, and 0.3-1.4 parts of vinyl polydimethylsiloxane / polymethylsiloxane silsesquioxane crosslinked polymer. This invention employs a co-assembly strategy of film-forming agents and powders. By selecting and combining film-forming agents and powders with silicon-oxygen bonding structures, a sunscreen film with tensile strength, friction resistance, and migration resistance is constructed from both molecular and particle dimensions, solving the problems existing in current sunscreen film-forming technologies. At the same time, when the composition is applied to sunscreen products, it can effectively improve the whitening and oily shine of the products.

To provide a novel production method for perfluoroalkyl trimethylsilane that is simpler and more suitable for industrial use, utilizing perfluoroalkyl iodide, which is not subject to production regulations, as the raw material.SOLUTION: A production method for perfluoroalkyl trimethylsilane represented by the general formula (3) includes reacting perfluoroalkyl iodide represented by the general formula (1) with halogenated trimethylsilane represented by the general formula (2) in a polar aprotic solvent in the presence of aluminum. The formula (1) is Rf-I (where Rf represents a C1-3 perfluoroalkyl group). The formula (2) is X-SiMe3 (where X represents a chlorine, bromine, or iodine atom). The formula (3) is Rf-SiMe3 (where Rf represents a C1-3 perfluoroalkyl group).SELECTED DRAWING: None

This invention belongs to the field of new materials for daily chemical products and discloses a single-component aerosol foundation spray, comprising a propellant and a water-in-oil emulsion. The total weight of the water-in-oil emulsion is 100 wt%, and the emulsion contains the following components: dipropylene glycol 6-8 wt%; 1,2-hexanediol 0.6-1 wt%; isomeric oligosaccharides 2-3 wt%; trimethylsiloxysilicate 1.5-2 wt%; VP / hexadecene copolymer 1.5-2.5 wt%; dual-terminated vinyl polyether silicone oil 0.5-0.7 wt%; inorganic salt content less than 0.2 wt%; and an appropriate amount of emulsifier. The single-component aerosol foundation spray of this invention has comprehensive advantages such as smooth spraying, excellent low-temperature stability, and superior film-forming effect.

The application discloses a lignin nanobottle-based photothermal super-hydrophobic deicing coating composition, a coating and a preparation method and application thereof, and belongs to the technical field of coating materials. The coating composition comprises, in mass fractions, 1-20 parts of matured modified lignin nanobottle, 1-10 parts of aminopropyl-terminated polydimethylsiloxane, 1-10 parts of trimesaldehyde, 10-100 parts of hexadecyl trimethylsilane, 10-70 parts of methyl trimethoxysilane and 3000-3500 parts of a solvent. The lignin nanobottle is modified by maturation to enhance the stability and photothermal performance, the aminopropyl-terminated polydimethylsiloxane and the trimesaldehyde are subjected to Schiff base reaction to form an imine bond cross-linked hydrophobic supramolecular polymer, so that the coating has excellent self-healing property and the stability of the coating is enhanced. The various components cooperate with each other, greatly improve the hydrophobic property, weather resistance and deicing property of the coating, and prolong the service life of the coating.

The invention relates to the technical field of lithium ion batteries, in particular to a high-safety lithium battery and a preparation method thereof. The lithium battery comprises a positive plate, a negative plate, a diaphragm, a high-flame-retardant electrolyte and a ceramic fiber membrane, the high-flame-retardant electrolyte comprises the following raw materials: an organic solvent, a lithium salt, a functional additive and a polymer. Through the formula design of the flame-retardant electrolyte obtained by matching triethyl phosphate, hexachlorocyclotriphosphazene and tri (trimethylsilane) borate ternary additives with the brominated polymer, and in combination with the integrated innovation of the ceramic fiber membrane, the thermal safety boundary is greatly improved while the cycle performance of the battery is basically maintained, and the service life of the battery is prolonged. And the potential safety hazard of the high-energy-density lithium battery is solved.