76results about How to "Wide liquid range" patented technology

The present invention relates to a new type chemical material and its preparation. L-sulforamidate-type chiral ionic liquid is prepared through the full reaction of aqueous L-amino acid solution with98% sulfuric acid. The produced L-sulforamidate-type chiral ionic liquid has the features of both ionic liquid and chiral matter. The reaction has high product purity, low cost, no exhausted pollutant and no side product, and is suitable for application in large scale industrial production. The new material is capable of becoming environmentally friendly important chemical material.

A quaternary ammonium salt ionic liquid of the present invention and its preparation and application methods belong to quaternary ammonium compounds, and its molecular composition is N, N, N-trimethyl-N-sulfobutyl-ammonium bisulfate, and its molecular formula is [HSO3-b -N(CH3)3]HSO4, the structural formula is as follows: the quaternary ammonium salt ionic liquid of the present invention is non-corrosive equipment and environment-friendly, and the quaternary ammonium salt ionic liquid catalyst of the present invention is used for nitrobenzene catalytic hydrogenation to synthesize p-amino The phenol reaction is a liquid phase method, the reaction temperature is 60-130° C., and the PAP yield reaches 19.5-88%.

The invention provides a pyridine sulfonic acid salt ion liquid and its preparing process use thereof, wherein the preparation comprises the steps of, mixing pyridinesulfonic acid inner salt with equal mol ratio of acids or their solution, heating with stirring simultaneously, reacting 1-24 hrs, and distilling distillation.

The invention discloses a low temperature type lithium ion battery electrolyte with high temperature property and lithium ion battery. The electrolyte is made by uniformly mixing and confecting electrolytic salt, non-water organic solvent, alkali additive and film-forming additive, the electrolytic salt is mixed lithium salt made by uniformly mixing lithium tetrafluoroborate and lithium bis(oxalate)borate, and the mol ratio of the two is 96-73: 4-27, the concentration of the mixed lithium salt solution formed by the electrolytic salt and the non-water organic solvent is 0.8-1.2mol/L; the alkali additive is heptamethyldisilazane and the mass ratio of the hepatmethyldisilazane and the non-water organic solvent is 0.1-8%; the mass ratio of the film-forming additive and the non-water organic solvent is 0.1-5%; and the lithium ion battery comprises an anode, a cathode, a diaphragm and low temperature type lithium ion battery electrolyte with high temperature property. The invention has reasonable design, simple preparation method steps and convenient implementation, and the prepared electrolyte and lithium ion battery have favourable comprehensive performances.

The present invention relates to a new type chemical material and its preparation. L-hydrosulforamidate-type chiral ionic liquid is prepared through the full reaction of aqueous L-amino acid solutionwith 98% sulfuric acid. The produced L-hydrosulforamidate-type chiral ionic liquid has the features of both ionic liquid and chiral matter. The reaction has high product purity, low cost, no exhausted pollutant and no side product, and is suitable for application in large scale industrial production. The new material is capable of becoming environmentally friendly important chemical material.

The invention provides PC (Propylene Carbonate)-based high-voltage electrolyte. The PC-based high-voltage electrolyte comprises a non-aqueous solvent, and a lithium salt and an additive which are dissolved into the non-aqueous solvent; the non-aqueous solvent comprises propylene carbonate (PC) and linear carboxylate; the mass percent content of the propylene carbonate (PC) in the electrolyte is 15%-50%; the additive comprises fluoroethylene carbonate, ethylene sulfate and a dinitrile compound. A solvent system and the additive are optimally combined and used to generate a cooperative effect and are used for a lithium ion battery, so that good cycle life, low-temperature discharging properties and high-temperature storage properties of the battery can still be kept under high voltage.

The invention relates to an ester-based ionic liquid electrolyte solution for a low temperature lithium ion battery. The electrolyte solution contains a lithium salt, non-aqueous solvents, an additive and an ionic liquid. With a wide liquid range, the ionic liquid can still maintain good liquid properties at a low temperature. The adding of the ionic liquid can effectively improve the low temperature performance of the lithium ion battery, thus widening the operating temperature range of the electrolyte solution. At a temperature of -40DEGC, the discharge capacity of the battery composed of the electrolyte solution accounts for 60% of the discharge capacity at 25DEG C. The invention aims to overcome the defects of low temperature problem and potential safety hazards in the electrolyte solution composed of an organic solvent and a lithium salt in the prior art, and provides the ester-based ionic liquid electrolyte solution for a low temperature lithium ion battery.

The invention discloses a preparation method of a polymer-added composite cathode and application of the composite cathode in a solid-state battery. The composite cathode is characterized by comprising a composite cathode pole piece and a solid-state electrolyte material, wherein the composite cathode pole piece is prepared from a cathode active material, an additive, a conductive agent and a binder; the solid-state electrolyte material is prepared from a high-molecular polymer with a long chain segment, lithium salt conducting a coordination reaction with the high-molecular polymer, and a fast ion conductor. The invention also discloses a preparation method of the polymer-added composite cathode applied to a solid-state lithium battery. The preparation method is characterized by comprising the following steps: preparing a cathode pole piece, preparing a solid-state electrolyte membrane. The preparation method disclosed by the invention has the following advantages: the arrangement regularity of polyoxyethylene molecular chains is damaged by the effect among the molecular chains of several polymers, the glass-transition temperature is lowered, the crystal formation is inhibited, and the ionic conductance is enhanced.

The invention discloses an electrolyte for a lithium iron phosphate lithium-ion battery. The electrolyte is prepared by uniformly mixing an electrolyte lithium salt and a non-aqueous organic solvent; the electrolyte lithium salt is a mixed lithium salt prepared by uniformly mixing lithium bis(trifluoromethanesulfonyl)imide (LiTFSI) and lithium bis(oxalate)borate (LiBOB) according to a molar ratio of 95-75%:5-25%; the concentration of the mixed lithium salt solution consisting of the electrolyte lithium salt and the non-aqueous organic solvent is 0.8-1.3 mol/L; and the non-aqueous organic solvent is prepared by uniformly mixing a conventional substrate solvent and a low-melting-point solvent with a volume percent ratio of 10%-50%:90%-50%. The electrolyte provided by the invention has a wider temperature window, better charging and discharging performances and good cycling stability, and is capable of giving consideration to high-temperature performances and low-temperature performances of the lithium iron phosphate lithium-ion battery.

The invention discloses a demercuration absorption liquid, wherein the demercuration absorption liquid is formed by mixing imidazolium ionic liquids and hydrogen peroxide with the mass ratio of 9: (10-20). The absorption liquid is high in efficiency, and has no pollution.

The invention provides a room-temperature curing epoxy adhesive and a preparation method thereof, which belongs to the technical field of adhesives. The room-temperature curing epoxy adhesive aims to solve the problems of poor mechanical properties and incapability of fast curing of an existing epoxy adhesive at room temperature. The adhesive comprises 100 parts of epoxy resin, 15 to 20 parts of aromatic amine curing agents, 2 to 10 parts of ionic liquid, 10 to 20 parts of thinners, 10 to 15 parts of plasticizers, 5 to 10 parts of fiber reinforced materials and 5 to 8 parts of filling agents, wherein the structural formula of the ionic liquid is shown in formula (I). The invention further provides a preparation method of the room-temperature curing epoxy adhesive. The preparation method has the advantages of simplicity and easiness in implementation, and the obtained adhesive can be cured at room temperature and has excellent mechanical properties.

The invention belongs to the field of high molecules, and particularly relates to thermal plastic processing available polyvinyl alcohol resin, as well as a preparation method and application thereof. To solve the technical problems, the method comprises the following steps: based on mass percentage, adding 15-45 parts of imidazole ionic liquid into water, sufficiently dissolving and ionizing; then, adding 100 parts of polyvinyl alcohol, uniformly mixing to obtain a mixture, and standing at 65-90 DEG C for plasticizing; and removing moisture. The thermal plastic processing available polyvinyl alcohol resin can be applied to the fields of thermal plastic processing, such as extrusion, injection molding, membrane blowing, spinning, foaming and fused deposition modeling. The preparation method is simple and efficient, has strong operability, and is easy for industrial implementation. Products prepared by adopting the polyvinyl alcohol resin as a raw material has excellent mechanical performance and excellent conductive performance.

The invention discloses a magnetic fluid lubricating method. The method includes: using ionic liquid as base carrier liquid to prepare ion-liquid-based magnetic fluid; arranging the ion-liquid-based magnetic fluid in the surface of a friction pair, applying a magnetic field to the surface of the friction pair to fix the ion-liquid-based magnetic fluid on the surface of the friction pair, wherein the direction of the magnetic field is parallel with the normal of the surface of the friction pair; applying an electric field to the surface of the friction pair, wherein the direction of the electric field is parallel with the normal of the surface of the friction pair. By the magnetic fluid lubricating method high in practical value, lubricating oil run-off and volatile loss of is reduced even eliminated.

The invention discloses a guerbet alcohol cyclopentane carboxylic acid ester lubricant and a preparation method thereof. The preparation method includes: taking cyclopentane-carboxylic acid and guerbet alcohol as raw materials, acidic ionic liquid as a catalyst and methylbenzene as a solvent and subjecting the compound to reaction for 2-4 hours under condition of reflux to obtain a target product. The compound serving as basic oil for the lubricant and lubricating grease is suitable for lubrication of various friction pairs such as steel/steel and ceramic/steel and can be applied to liquid lubrication under harsh conditions (high speed, high low temperature, high vacuum and the like) of space mechanisms.

The electrolyte material is constructed by the neutral molecular compound. 1,3-nitrogen oxygen sulfur cyclopentane (cyclohexanone) and conducting salt, the organic dissolvant is also added. The advantage of the invention is: simple to produce, easy to purify, low price, and good heat-stability , the broad electro-chemical window and high conducting property of the ion, which is effectively applied on the lithium ion battery, electro-chemical super capacitor fuel battery, etc.

The invention relates to tetrazole cyano boric acid ionic liquid and a preparation method thereof, and belongs to the fields of organic synthesis and pyrophoric liquid propellants. The tetrazole cyano boric acid ionic liquid is prepared by carrying out replacement reaction in an organic solvent by utilizing sodium tetrazole cyano borate and corresponding imidazole, pyrrolidine or pyridine halogeno salt; the tetrazole cyano boric acid ionic liquid has very high nitrogen content, positive formation enthalpy, high density, wide liquid range, lower viscosity, good heat stability and ultrashort ignition delay time, and has a potential application value in the field of the pyrophoric liquid propellants. In addition, the invention also provides the preparation method of the sodium tetrazole cyano borate. According to the preparation method, the sodium tetrazole cyano borate is prepared from sodium cyanoborohydride and 1H-tetrazole through one step under a heating condition, the step is simple, and no virulent raw materials are involved.

The invention discloses a method for efficiently preparing compound amino acids. The method for efficiently preparing the compound amino acids comprises the following steps: taking feathers, grinding until sieving with a 40-60 mesh sieve, and using <60>Co-gamma rays to carry out irradiation on sieved feather powder; hydrolyzing the feather powder which is subjected to irradiation in the step (1) to obtain first hydrolysate; adding ionic liquid to the first hydrolysate obtained in the step (2), and continuously reacting for 5 to 20min under the conditions of microwave heating, and filtering to obtain second hydrolysate; adjusting the pH of the second hydrolysate to be neutral, thus obtaining the compound amino acids; the method for efficiently preparing the compound amino acids disclosed by the invention integrates irradiation technologies, microwave heating technologies and ionic liquid technologies, firstly, the irradiation rays are used for carrying out ionization excitation on the feathers to activate molecules, on the other hand, the ionic liquid has a higher absorptive capacity for microwave and good solubility for molecular substances to greatly accelerate the reaction rate, and effectively improve the hydrolysis rate, so that the method for efficiently preparing the compound amino acids is a novel high-efficiency and green hydrolysis method and has great application prospects.

The invention provides an amino acid ester cationic chiral ionic liquid and a preparation method thereof. The amino acid ester cationic chiral ionic liquid has a structural formula shown in the description. In the structural formula, R is a variable group of alpha-amino acid, R' is a C1-3 alkyl group, and X is one of BF4, PF6 and HSO4. The chiral position is in an amino acid cation, the amino group is connected with a large-volume group, so the amino acid ester cationic chiral ionic liquid has the advantages of high stereoselectivity, structure diversity and good designability.

The invention provides a lithium battery electrolyte, which is characterized by comprising a lithium salt, ethylene glycol dibutyl ether, a fluorine-containing organic solvent, a high and low temperature resistant additive and imidazolyl ionic liquid. The lithium battery electrolyte prepared by the invention can form a relatively stable passivation film, and the layer of passivation film is inhibited along with the prolonging of the storage time, so that the storage performance of the lithium battery is remarkably improved, and the storage life of the lithium battery is remarkably prolonged. Meanwhile, the electrolyte has a relatively low freezing point and high-temperature incombustibility, the electrolyte is endowed with very strong flame resistance at the same time, the quick charging performance of the battery can also be enhanced, and the electrolyte can be widely applied to quick-charging lithium batteries.