390 results about "Oxidation stability" patented technology

The preparation method comprises the following steps: mixing walnut oil and idesia oil according to a mass ratio of (85-90): (10-15), stirring and heating to 68-72 DEG C under the condition of a rotating speed of 55-70 rpm, adding a gel compounded by edible wax and polyglycerol fatty acid ester according to a mass ratio of (4-6): 1, continuing to stir until complete dissolution, adding an emulsifying agent, and uniformly stirring to obtain the beta '-crystal-form woody oil-based oleogel, so as to obtain the beta'-crystal-form woody oil-based oleogel, namely the beta '-crystal-form woody oil-based oleogel. The preparation method comprises the following steps: preparing a liquid grease gel solution, directly putting the liquid grease gel solution under the condition of-10 to-40 DEG C for quick freezing, then stirring for 3-6 minutes under the condition of the rotating speed of 150-250 rpm, and standing for 5-6 days under the environment of 20-25 DEG C to prepare the woody oil-based grease gel. The grease gel prepared by the method disclosed by the invention contains a stable beta'crystal form, is high in oil holding rate and proper in hardness, has relatively good oxidation stability, and can be applied to baking instead of animal butter or hydrogenated vegetable oil.

The invention belongs to the technical field of new energy materials, and particularly relates to siloxane crosslinking modified polyether solid electrolyte and a preparation method thereof. According to the solid electrolyte, the electrophilic ring-opening polymerization reaction of a polymer monomer with an epoxy group is utilized, siloxane is used as a cross-linking agent, polyether chain structures are connected together to form a cross-linked network structure, the ionic conductivity can be increased, and the mechanical strength and the high-temperature dimensional stability can be improved; the lithium ion transference number is increased, the polarization is reduced, and the battery rate capability is improved; the oxidation stability of the electrolyte is improved; the decomposition reaction of polyether at high temperature is inhibited; the thermal stability and the flame retardant property of the polymer electrolyte are remarkably improved, so that the safety of a solid-state battery is improved.

The invention discloses a two-phase absorbent and application thereof. The two-phase absorbent comprises the following components in percentage by mass: 10-35% of a main absorbent, 20-50% of a phase-splitting agent, 0-15% of an accelerant and 0-70% of water, wherein the total mass of the two-phase absorbent is 100%; wherein the main absorbent is polyamine, the polyamine contains more than three amino groups, more than three carbon atoms are arranged between the adjacent amino groups, and at least one of the more than three amino groups is a tertiary amino group; the phase splitting agent is an alcohol ether compound. The two-phase absorbent provided by the invention has better absorption performance, can reduce the generation of oxidative degradation, and has higher oxidation stability.

The invention discloses a preparation method of a V-shaped porous starch-grease inclusion compound. According to the method, V-type porous starch is used as a raw material and is blended with grease to prepare the starch-grease inclusion compound. The method specifically comprises the following steps: dispersing grease in a 60% ethanol aqueous solution, adding V-shaped porous starch, magnetically stirring for 2 hours at 25-30 DEG C, centrifuging the solution, washing the obtained precipitate twice by absolute ethyl alcohol, freeze-drying the washed precipitate, grinding, and sieving by a 100-mesh sieve, thereby obtaining the V-shaped starch-grease inclusion compound. According to the method, 60% ethanol is adopted as a solvent, efficient embedding of the grease is achieved under the normal temperature condition, and the adverse effect of a traditional heat treatment method on the oxidation stability of the grease is avoided. According to the method, on the basis of a spiral cavity structure and a honeycomb-shaped pore structure of V-shaped porous starch, grease is efficiently embedded in an inner cavity of the starch by utilizing a blending adsorption method, the content of free grease on the surface is reduced through the synergistic effect of physical adsorption and intermolecular acting force, and the stability of grease embedding is improved.

The invention discloses a preparation method for simultaneously and efficiently extracting crocodile polypeptide and crocodile oil, and relates to the technical field of biological extraction, crocodile meat is used as a raw material, and heating micro-pressure treatment is sequentially performed to promote component dissolution; a multi-stage enzymolysis process is adopted, alkaline protease, neutral protease and lipase are sequentially used, and a calcium phosphate system is used for assisting filtration and a natural antioxidant is added in a gradient manner in the enzymolysis process; performing plate frame filtration and standing layering subsequently to realize crude separation of the oil peptide; finally, the crocodile polypeptide liquid is subjected to multi-stage membrane filtration and spray drying, the crocodile crude oil is subjected to ultrasonic-assisted fishy smell removal, ceramic membrane fine filtration and gradient cooling phase change refining, and after enzymolysis treatment and before filtration, a composite additive is added into enzymatic hydrolysate and stirred. No organic solvent exists in the whole process, and the product yield, purity and oxidation stability are remarkably improved.

The embodiment of the invention provides an electrolyte, a battery and electric equipment, the electrolyte comprises a lithium salt, an organic solvent and a polymer matrix, and monomers of the polymer matrix comprise vinylene carbonate and isocyanate ethyl acrylate. In the electrolyte provided by the embodiment of the invention, the monomers of the polymer matrix comprise vinylene carbonate and isocyanate ethyl acrylate, and the low HOMO energy level of isocyanate ethyl acrylate can weaken the electron loss ability of the polymer matrix and improve the oxidation stability of the electrolyte, so that the relatively poor electrochemical stability is improved; and a copolymerization structure of vinylene carbonate and isocyanate ethyl acrylate reduces the crystallinity of a polymer matrix and provides a smoother path for Li < + > transmission, so that the ionic conductivity of the electrolyte is improved. Therefore, the electrolyte provided by the invention can effectively improve the problems of low room-temperature ionic conductivity and relatively poor electrochemical stability of the existing gel electrolyte, and has a good application prospect.

The invention discloses a method for qualitatively identifying oxidation stability of an atorvastatin calcium bulk drug by adopting a multispectral fusion technology, and belongs to the technical field of detection analysis, and the method comprises the following steps: S1, preparing amorphous atorvastatin calcium; s2, grinding, screening, mixing and tabletting the atorvastatin calcium raw material medicine with the crystal form I and the amorphous atorvastatin calcium; s3, detecting the tabletting sample to obtain near infrared spectrum data and Raman spectrum data; s4, performing feature extraction on the near infrared spectrum data and the Raman spectrum data, fusing near infrared spectrum features and Raman spectrum features, and establishing a mathematical model of the fused features after standardization treatment and amorphous atorvastatin calcium content data in the mixed sample; and S5, establishing classification boundaries of oxidability and oxidation stability by using a plurality of atorvastatin calcium samples with known oxidation stability, and identifying the oxidation stability of the unknown atorvastatin calcium sample to be detected according to the classification boundaries by using the mathematical model established in S4.

The invention belongs to the field of intelligent materials, and discloses a nematic phase liquid crystal elastomer fiber and a method for optimizing the thermal shrinkage performance of the nematic phase liquid crystal elastomer fiber. According to the method, the mass ratio of a cross-linking agent pentaerythritol tetra (3-mercaptopropionate) (PETMP) to a chain extender 2, 2 '-[1, 2-ethanediyl bis (oxygen)] bis (ethanethiol) (EDDET) in an LCE spinning solution is accurately controlled through a wet spinning technology, and drafting and heat treatment processes are combined, so that the LCE fiber with adjustable and controllable heat shrinkage performance and mechanical performance is prepared. The invention aims to overcome the limitations of low response speed, low shrinkage rate, insufficient environmental stability and the like of the existing LCE fiber. The reversible thermal shrinkage rate of the fiber can reach up to 35%, the maximum shrinkage deformation can be completed within 2 seconds at the soonest at the temperature of 80 DEG C, and the maximum tensile strength can reach 170 MPa. And the catalyst has excellent oxidation stability (the mass retention rate is about 97%), and can maintain efficient thermal response in a water environment. And a new way is provided for development of high-performance intelligent materials.

The invention provides a celluloid nitrocotton stability quantitative determination method based on conductivity analysis, and the method comprises the following steps: determining the conductivity of standard nitrogen oxide gas dissolved in an aqueous solution by adopting a conductivity meter through a standard gas simulation mode according to the criterion of Beckmann-Lockg method 2mL / g; taking the numerical value as a stability index critical value of the celluloid nitrocotton; the method comprises the following steps: absorbing nitrocotton with the same mass by using ultrapure water, heating at 132 DEG C for 2 hours, releasing nitrogen oxide gas, recording the change value of the conductivity in the solution along with time in real time by using an oxidation stability tester, obtaining the change value of the conductivity after 2 hours, and determining the content of nitrogen oxide according to the comparison between the conductivity value and a critical value. And judging whether the stability of the celluloid nitrocotton sample is qualified or not. The method provided by the invention can solve the technical problem that accurate quantitative judgment is difficult to realize due to large sample quantity, high safety risk, tedious operation process and large color change error of test paper observed by human eyes in the traditional method.

The invention relates to the technical field of base oil molecular structure modification, in particular to a gasoline engine oil composition and a base oil molecular modification method thereof, the composition contains 70-85 parts of modified base oil, 5-10 parts of boric acid ester dispersing agent and other additives; when the modified base oil is prepared, the base oil firstly reacts with 3-mercaptopropyltrimethoxysilane, then glycidyl methacrylate and N-vinyl pyrrolidone are sequentially added, a multi-step temperature control reaction is carried out, siloxane groups, epoxy groups and pyrrolidone groups are grafted on molecular chains, and the modified base oil is obtained and used for preparing high-performance gasoline engine oil. Through base oil molecule modification and special additive compounding, the viscosity-temperature performance, the wear resistance and the oxidation stability of the gasoline engine oil are improved, and sediment generation is reduced; the process reduces energy consumption and cost, meets environmental protection requirements, and realizes unification of high performance and economical efficiency.

Myriad problems with state of the art lithium based batteries, particularly electrolyte systems thereof, including but not limited to polysulfide shuttling, formation of lithium dendrites and dead lithium during stripping and plating, thermal runaway, volumetric expansion, and strict requirements for electrolyte composition, are well documented in the art and remain major obstacles to realizing the unsurpassed potential for lithium-based batteries as ideal energy storage solutions. The inventive concepts presented herein address said challenges from a multi-pronged approach, revolutionizing the electrolyte system from different approaches to produce synergistic benefits, both within the individual approaches and particularly in combination. The inventive concepts improve electrolyte systems with respect to solvents, electron withdrawing compounds, lithium ion-transporting compounds, performance enhancing additives and chalcogenides. These developments provide benefits including: improved charge / discharge capacity, Coulombic efficiency, cycle life, sulfur optimization, oxidative stability, etc. while reducing polysulfide shuttling and lithium dendrite formation, among other benefits.

The invention discloses a preparation method of high-temperature transformer oil, and belongs to the technical field of high-temperature transformer oil. Comprising the following steps: 1, carrying out hydrolysis reaction to obtain ricinoleic acid; step 2, carrying out first esterification reaction to obtain a ricinoleic acid esterification product; 3, performing epoxidation reaction to obtain an epoxidized ricinoleic acid esterification product; 4, carrying out ring-opening reaction to obtain ring-opened castor oil; 5, carrying out a second esterification reaction to obtain modified castor oil base oil; and 6, mixing the modified castor oil base oil, a viscosity index improver, an antioxidant, a demulsifying agent and an extreme pressure agent to obtain the high-temperature transformer oil. The invention provides modified castor oil and a preparation method thereof. The high-temperature antioxidant transformer oil prepared by using the modified castor oil as base oil has the characteristics of environmental protection, degradability, high flash point, high breakdown voltage and the like, and also has excellent oxidation stability.

According to the prepared MXene / C electrode material based on PAN carbonization, a nitrogen-doped carbon layer generated through polyacrylonitrile (PAN) in-situ carbonization serves as a supporting spacer to be inserted between MXene nanosheet layers, the MXene nanosheet layers are tightly bridged, the interlayer spacing of MXene is effectively enlarged, re-stacking of nanosheets is inhibited, and in the carbonization process, the MXene / C electrode material can be used for preparing the MXene / C electrode material based on PAN carbonization. Abundant mesopores and fissure holes are generated in the composite material by introducing and decomposing a sacrificial template (PMMA nanosphere), and a three-dimensional through ion transmission channel is constructed; the nitrogen-doped carbon layer not only serves as a supporting spacer to be inserted between MXene nanosheet layers, but also coats the surfaces of the MXene nanosheets,-F end groups on the surfaces of the MXene nanosheets are weakened, and C-O (H) and C-N functional groups are enriched, so that the interface wettability, the conductivity and the anti-oxidation stability of the material are improved, and the material can be widely applied to the technical field of electrochemical energy storage materials.

The application provides an acid ester composite diesel anti-wear agent and a preparation method thereof, and belongs to the technical field of diesel additives, and comprises the following steps: S1, preparing a silanized solid acid catalyst; S2, preparing C18 polyol ester; S3, mixing an acid type anti-wear component and the C18 polyol ester, and then stirring after heating, and then adding tetrahydropyrazole pyridine derivatives and a diluent to continue stirring, and then cooling and filtering to obtain the acid ester composite diesel anti-wear agent. The application can improve the lubricity and anti-wear performance of low-sulfur diesel at a lower additive dosage, and has low corrosion and good oxidation stability.

The invention relates to the technical field of catalysts, and particularly discloses a Ni-Cu-CeO2 / ZrO catalyst for improving oxidation stability of biodiesel and a preparation method of the Ni-Cu-CeO2 / ZrO catalyst. The invention discloses a Ni-Cu-CeO2 / ZrO catalyst for improving oxidation stability of biodiesel. The Ni-Cu-CeO2 / ZrO catalyst comprises a carrier, an active component and an auxiliary agent, the carrier is a CeO2-ZrO2 composite oxide; the active components are Ni and Cu; ni accounts for 3-5 wt% of the mass of the catalyst, and Cu accounts for 1-3 wt% of the mass of the catalyst; the auxiliary agent is La2O3; the preparation method comprises the following steps: firstly preparing the CeO2-ZrO2 carrier by adopting a coprecipitation method, then impregnating nickel nitrate, copper nitrate and lanthanum nitrate in an isopyknic manner, and then carrying out stepped roasting to obtain the catalyst. The catalyst has high catalytic activity and stability, unsaturated fatty acid ester in biodiesel can be removed, the oxidation stability of the biodiesel is improved, and the cost of the catalyst is lower than that of a noble metal catalyst.

Myriad problems with state of the art lithium based batteries, particularly electrolyte systems thereof, including but not limited to polysulfide shuttling, formation of lithium dendrites and dead lithium during stripping and plating, thermal runaway, volumetric expansion, and strict requirements for electrolyte composition, are well documented in the art and remain major obstacles to realizing the unsurpassed potential for lithium-based batteries as ideal energy storage solutions. The inventive concepts presented herein address said challenges from a multi-pronged approach, revolutionizing the electrolyte system from different approaches to produce synergistic benefits, both within the individual approaches and particularly in combination. The inventive concepts improve electrolyte systems with respect to solvents, electron withdrawing compounds, lithium ion-transporting compounds, performance enhancing additives and chalcogenides. These developments provide benefits including: improved charge / discharge capacity, Coulombic efficiency, cycle life, sulfur optimization, oxidative stability, etc. while reducing polysulfide shuttling and lithium dendrite formation, among other benefits.

Myriad problems with state of the art lithium based batteries, particularly electrolyte systems thereof, including but not limited to polysulfide shuttling, formation of lithium dendrites and dead lithium during stripping and plating, thermal runaway, volumetric expansion, and strict requirements for electrolyte composition, are well documented in the art and remain major obstacles to realizing the unsurpassed potential for lithium-based batteries as ideal energy storage solutions. The inventive concepts presented herein address said challenges from a multi-pronged approach, revolutionizing the electrolyte system from different approaches to produce synergistic benefits, both within the individual approaches and particularly in combination. The inventive concepts improve electrolyte systems with respect to solvents, electron withdrawing compounds, lithium ion-transporting compounds, performance enhancing additives and chalcogenides. These developments provide benefits including: improved charge / discharge capacity, Coulombic efficiency, cycle life, sulfur optimization, oxidative stability, etc. while reducing polysulfide shuttling and lithium dendrite formation, among other benefits.

The present invention relates to the field of lubricating oil technology, and in particular to a gear oil composition that can be used in a gearbox of a wind turbine generator set. The gear oil composition comprises: a low-viscosity poly-α-olefin and a high-viscosity synthetic ester; the weight ratio of the low-viscosity poly-α-olefin to the high-viscosity synthetic ester is 1:2 to 4.5; the kinematic viscosity of the low-viscosity poly-α-olefin at 100°C is 2 to 4.5 mm 2 / s; the high viscosity synthetic ester has a kinematic viscosity of 500 to 1500 mm at 40°C 2 The gear oil composition of the present invention has good biodegradability and sealing material compatibility, excellent hydrolysis resistance, low-temperature fluidity, extreme pressure and anti-wear properties, good oxidation stability, corrosion and rust resistance, and demulsification properties, can meet the performance requirements of wind power gearboxes, and is environmentally friendly.

Myriad problems with state of the art lithium based batteries, particularly electrolyte systems thereof, including but not limited to polysulfide shuttling, formation of lithium dendrites and dead lithium during stripping and plating, thermal runaway, volumetric expansion, and strict requirements for electrolyte composition, are well documented in the art and remain major obstacles to realizing the unsurpassed potential for lithium-based batteries as ideal energy storage solutions. The inventive concepts presented herein address said challenges from a multi-pronged approach, revolutionizing the electrolyte system from different approaches to produce synergistic benefits, both within the individual approaches and particularly in combination. The inventive concepts improve electrolyte systems with respect to solvents, electron withdrawing compounds, lithium ion-transporting compounds, performance enhancing additives and chalcogenides. These developments provide benefits including: improved charge / discharge capacity, Coulombic efficiency, cycle life, sulfur optimization, oxidative stability, etc. while reducing polysulfide shuttling and lithium dendrite formation, among other benefits.

The application provides a fluorinated ether solvent and an electrolyte applied to energy storage batteries, especially lithium metal batteries, and the fluorinated ether solvent has a structure shown in formula I. By introducing at least one fluorine atom at both ends of an ether molecular chain, the fluorinated ether molecule has excellent salt solubility, the introduction of the fluorine atom can effectively reduce the electron cloud density of ether oxygen to improve the oxidation stability of the ether molecule, and excellent cycle stability of the high-voltage lithium metal battery is achieved; meanwhile, the locally strong polar fluorinated end group can interact with the cation of the salt to improve the ionic conductivity of the electrolyte, and the rapid charge-discharge performance of the high-voltage lithium metal battery is improved.

The application discloses a method and device for producing bright stock, and the obtained bright stock, which comprises the following steps: (1) contacting heavy oil with a hydrogenation catalyst under the presence of hydrogen, and performing hydrogenation reaction under hydrogenation treatment conditions to obtain a hydrogenation product; (2) performing alkylation reaction of aromatics in the hydrogenation product and C10-C20 olefins in olefin oil under the presence of a strong acid catalyst and under alkylation reaction conditions to obtain an alkylation product; and (3) performing distillation separation on the alkylation product to separate and obtain a heavy fraction with a temperature greater than 500 DEG C as the bright stock product. The method provided by the application expands the raw material source of the bright stock, simplifies the process flow, and is convenient for industrial production; and the prepared bright stock product not only has high viscosity and viscosity index, but also has good low-temperature flow performance and high oxidation stability.

The invention relates to a biodegradable hydraulic oil composition and a preparation method of hydraulic oil, and relates to the technical field of hydraulic oil compositions.The hydraulic oil composition comprises, by weight, 20-37% of ester oil, 5-10% of refined vegetable oil and 5-10% of a demulsifier, and the total weight of the ester oil, the refined vegetable oil and the demulsifier is 100%. The content of the refined vegetable oil is 62-79.9 wt%, the content of the demulsifier is 0.1-1 wt%, and the preparation method of the refined vegetable oil comprises the following steps: pre-loading a nanocapsule with an antioxidant as an inner core in activated clay, loading the activated clay pre-loaded with the nanocapsule into deacidified oil, and filtering to obtain the refined vegetable oil. The hydraulic oil composition disclosed by the invention has excellent biodegradability and also has the technical effects of relatively good oxidation stability and viscosity-temperature property.

A lubricating composition comprises an oil of lubricating viscosity, a phenolic antioxidant, a sulfurized organic compound having an active sulfur content of no more than 8% by weight, and optionally one or more performance additives selected from the group consisting of succinimide dispersants and detergents. Further, a method for improving the oxidative stability of a lubricating oil in an engine comprises supplying to the engine a lubricating composition comprising an oil of lubricating viscosity, a phenolic antioxidant, a sulfurized organic compound having an active sulfur content of not more than 8% by weight, and optionally one or more performance additives selected from the group consisting of succinimide dispersants and detergents.

The embodiment of the application provides an insulating oil, a preparation method thereof and a power transformation equipment. The insulating oil comprises a composite vegetable ester base oil, a synthetic ester additive, a compounded antioxidant and a metal deactivator. The insulating oil has good electrical performance, oxidation stability and environmental protection performance, and can ensure safe and stable operation of the power transformation equipment.

The application discloses a high-absorption carrot juice processing control method based on multi-stage quality detection, and relates to the technical field of food processing. The method comprises the following steps: raw material acceptance and initial physical property detection; low-temperature color protection pretreatment; dynamic pressing and initial filtration; enzyme solubilization treatment to release embedded carotenoids; three-stage high-pressure homogenization to reduce the D[4,3] particle size to below 380 nanometers; instantaneous high-temperature sterilization to promote interface membrane reconstruction; multi-stage quality online detection is implemented at four key nodes; closed-loop parameter feedback adjustment is realized based on detection data through a multivariate regression model; and finally, sterile cold filling and light-proof aging are performed. Through the technical scheme, the application significantly improves the carotenoid retention rate, oxidation stability and in-vitro gastrointestinal simulation absorption rate, the final product absorption rate is stably above 42%, the retention rate is above 92%, and no organic solvent or non-original juice processing means is needed, so the application is suitable for industrialized production of high-value-added pure carrot juice.

The invention relates to new carbon dioxide (CO2) adsorbents based on modified weak base anion exchange resin (WBAER) sorbents comprising a crosslinked polymeric backbone containing appended primary and / or secondary amines. The WBAER materials are insoluble in water and common organic solvents, have surface areas of 5-50 m2 / g, and can be in either bead or powder form. The WBAER materials are suspended in water and / or polar organic solvents and treated with polyfunctional epoxide compounds to effect the modification. The modified materials exhibit significantly improved oxidative stability compared with the unmodified ion-exchange resins without significantly impacting their CO2 uptake capacity or CO2 uptake kinetics. The modified materials remain insoluble in water and common organic solvents and, therefore, are not susceptible to leaching under steam-based or moisture-based sorbent regeneration conditions.

Disclosed in the present invention are a hydrocarbon composition, and a preparation method therefor and the use thereof. The hydrocarbon composition contains a bicyclic aromatic hydrocarbon and an aromatic hydrocarbon with three or more rings, wherein based on the total weight of the hydrocarbon composition, the total content of the aromatic hydrocarbons is greater than or equal to 90 wt%, the content of the bicyclic aromatic hydrocarbon is 60-100 wt%, and the content of the aromatic hydrocarbon with three or more rings is 0-40 wt%; the aromatic hydrocarbons have 35-80 carbon atoms; and the mass ratio NP / IP of n-alkane carbon to iso-alkane carbon is 4.0-6.8. The preparation method for the hydrocarbon composition comprises: (1) reacting an aromatic hydrocarbon oil with an olefin oil in the presence of a catalyst, and subjecting the resulting reaction product to sedimentation separation, so as to obtain an oil phase and a catalyst phase; and (2) washing the oil phase, distilling and cutting the washed oil phase, and refining the resulting vacuum residue fraction, so as to obtain the hydrocarbon composition The hydrocarbon composition of the present invention has a high viscosity, a high viscosity index, a low pour point and a good oxidation stability, and is suitable for being used as a high-quality high-viscosity special oil.

The invention discloses an aero-engine lubricating oil composition and a preparation method thereof, and relates to the field of lubricating oil. The composition comprises a composite base oil system, an antioxidant, an anti-wear reagent at extreme pressure, a corrosion inhibitor, an anti-foaming agent and an optional viscosity index improver, the composite base oil system is composed of high-purity pentaerythritol ester, poly-alpha-olefin and dipentaerythritol ester, wherein the high-purity pentaerythritol ester is synthesized by two-step esterification of pentaerythritol, binary fatty acid and monobasic fatty acid; according to the preparation method, a staged fine blending process is adopted, and vacuum dehydration and degassing, nitrogen protection and multi-stage filtration are combined. Through base oil structure innovation, additive purity control, function cooperation and process optimization, the high-temperature oxidation stability, extreme pressure wear resistance, corrosion resistance and rubber compatibility of the lubricating oil are remarkably improved.

The invention belongs to the technical field of lithium batteries, and particularly relates to a high-voltage-resistant fireproof electrolyte, a preparation method and application thereof, and a lithium ion battery. The invention provides a high-voltage-resistant fireproof electrolyte. The high-voltage-resistant fireproof electrolyte comprises a lithium salt, a fluorinated cyano organic solvent and an electrolyte additive, the fluorinated cyano organic solvent has a structure as shown in the specification; in the formula (I), R1 and R2 independently comprise C1-C5 fluoroalkyl groups. The electrolyte has high oxidation stability and fire resistance, a lithium-rich solid electrolyte interface layer (SEI) can be formed on a negative electrode of a lithium ion battery, dendritic crystal growth is inhibited, and the cycle stability of the high-voltage lithium metal battery is improved.

The invention provides a phenolic ester derivative as well as a preparation method and application thereof. The structure of the phenolic ester derivative is shown as a formula (I), wherein the definition of each group is shown in the specification. The phenolic ester derivative disclosed by the invention has excellent oxidation stability, thermal stability, viscosity-temperature performance, low-temperature performance and lubricating performance, and is suitable for being used as lubricating oil base oil.