670 results about "Trifluoromethanesulfonate" patented technology

The invention discloses an all-solid polymer electrolyte, and a preparation method and an application of the all-solid polymer electrolyte, and belongs to the field of lithium ion batteries. The all-solid polymer electrolyte comprises polyethylene oxide, lithium salt, inorganic nano particles and ion liquid, wherein a mass ratio of the lithium salt to polyethylene oxide is 0.1-0.5; the mass sum of the inorganic nano particles and the ion liquid is 10-30% of the mass of the all-solid polymer electrolyte; the lithium salt comprises one or several of bistrifluoromethane sulfonimide lithium salt, lithium tetrafluoroborate, lithium perchlorate, lithium hexafluorophosphate, lithium hexafluoroarsenate, lithium trifluoromethanesulfonate and lithium bis borate; and the inorganic nano particles comprise one or several of nano aluminum oxide, nano silicon oxide, nano zirconium oxide and nano barium titanate. The all-solid polymer electrolyte has better mechanical strength and higher ion conductivity. The method is simple in technology and low in cost; and raw materials are easy to obtain.

The present invention discloses a sodium ion battery negative electrode sheet, the negative electrode sheet is a porous graphite film structure, the diameter of the pores is from 2 to 30 microns, the distance between the centers of the circles of the pores is 5 to 50 microns, mass ratio of carbon atoms in the porous graphite film is greater than 99%, the negative electrode sheet may be used directly as the sodium ion battery negative electrode sheet, can avoid the use of a conductive agent, a binder and a metal collector, and has high capacity, corrosion resistance and good conductivity. The present invention also discloses a sodium ion battery using the negative electrode sheet, the sodium ion battery comprises a positive electrode sheet, a negative electrode sheet, a separator and an electrolyte, the sodium ion battery electrolyte solvent is one or more than one of diethanol dimethyl ether, dimethyl ether tetraethanol, and tetrahydrofuran, the electrolyte is one of sodium perchlorate, sodium hexafluorophosphate, sodium tetrafluoroborate and sodium trifluoromethanesulfonate, and the sodium ion battery is simple in production process and good in charging and discharging cycle stability, and has good prospects in the new energy field.

Disclosed is a liquid chemical for forming a water-repellent protecting film at least on a surface of a recessed portion of an uneven pattern at the time of cleaning a wafer having a finely uneven pattern at its surface and containing silicon at least a part of the uneven pattern. This liquid chemical contains a silicon compound A represented by the general formula: R¹_aSi(H)_bX_4-a-b and an acid A, the acid A being at least one selected from the group consisting of trimethylsilyl trifluoroactate, trimethylsilyl trifluoromethanesulfonate, dimethylsilyl trifluoroactate, dimethylsilyl trifluoromethanesulfonate, butyldimethylsilyl trifluoroactate, butyldimethylsilyl trifluoromethanesulfonate, hexyldimethylsilyl trifluoroacetate, hexyldimethylsilyl trifluoromethanesulfonate, octyldimethylsilyl trifluoroactate, octyldimethylsilyl trifluoromethanesulfonate, decyldimethylsilyl trifluoroacetate and decyldimethylsilyl trifluoromethanesulfonate.

PURPOSE: Provided are a non-aqueous electrolyte capable of improving the electrochemical property, and a lithium secondary cell excellent in electrochemical property. CONSTITUTION: The electrolyte comprises a lithium salt; a non-aqueous, organic solvent; and at least one of organic compound selected from compounds of formula 1 to 4(wherein the formula 3 is R9-SO3-Si-(CmH2m+1)3 and formula 4 is CnX2n+1-SO3-Si(CmH2m+1)3). In the formulae, each of R1 to R9 independently represents primary, secondary, or tertiary alkyl group, alkenyl group or aryl group, X is hydrogen or halogen atom, and each of n and m is 0-3. The lithium salt is selected from the group consisting of lithium hexafluorophosphate(LiPF6), lithium tetrafluoroborate(LiBF4), lithium perchlorate(LiClO4), lithium trifluoromethanesulfonate(LiCF3SO3), lithium hexafluoroarsenate(LiAsF6), and mixture thereof.

A nonaqueous electrolytic solution containing magnesium ions which shows excellent electrochemical characteristics and which can be manufactured in a general manufacturing environment such as a dry room, and an electrochemical device using the same are provided. A Mg battery has a positive-electrode can 1, a positive-electrode pellet 2 made of a positive-electrode active material or the like, a positive electrode 11 composed of a metallic net supporting body 3, a negative-electrode cup 4, a negative electrode 12 made of a negative-electrode active material 5, and a separator 6 impregnated with an electrolytic solution 7 and disposed between the positive-electrode pellet and the negative-electrode active material. Metal Mg, an alkyl trifluoromethanesulfonate, a quaternary ammonium salt or/and a 1,3-alkylmethylimidazolium salt, more preferably, an aluminum halide are added to an ether system organic solvent and are then heated, and thereafter, more preferably, a trifluoroborane-ether complex salt is added thereto, thereby preparing the electrolytic solution. By adopting a structure that copper contacts the positive-electrode active material, the electrochemical device can be given a large discharge capacity.

Several mid UV photo acid generators (PAGs), a chemically amplified photo resist (CAMP), and method for improving nested to isolated line bias are provided. Similarly, photo speed may also be improved. Unlike conventional mid UV PAGs, the present invention's PAG compounds, resist composition, and method do not require a mid UV sensitizer. Specifically, PAGs are provided that bear a chromophore capable of receiving mid UV radiation, particularly I-line, and that are suitable for use in a chemically amplified photo resist having a photo speed of 500 mJ/cm2 or less, but preferrably 200 mJ/cm2 or less. For example, the PAGs can be a sulfonium or iodonium salt, such as anthryl, butyl, methyl sulfonium triflate and bis(4-t-butylphenyl)iodonium 9,10-dimethoxyanthracene sulfonate. The chromophore forming a part of the PAGs can be selected from polyaromatic hydrocarbons, for example, chrysenes, pyrenes, fluoranthenes, anthrones, benzophenones, thioxanthones, anthracenes, and phenanthrenes, but preferably anthracenes.

The invention provides a preparation method of trifluoro methanesulfonic anhydride. The method comprises the following steps of: firstly reacting trifluoro methanesulphonyl fluoride with alkali metal hydroxide to prepare trifluoro mesylate, purifying trifluoro mesylate by recrystallization by utilizing an organic solvent, reacting trifluoro methane sulfonyl chloride with trifluoro mesylate to generate a trifluoro methanesulfonic anhydride crude product, and finally purifying trifluoro methanesulfonic anhydride by atmospheric distillation. The preparation method of trifluoro methanesulfonic anhydride can be used for not only effectively simplifying reaction steps so that the operation process is simple and convenient and the operation is safe, but also avoiding byproducts generated in the process of the traditional method for producing trifluoro methanesulfonic anhydride, and effectively reducing the contents of F<-> and SO4<2-> in the product; by utilizing recrystallization, atmospheric distillation and other methods for purification, the product purity is up to 99.5%; and more importantly, the yield of anhydride is greatly increased and raised to 88% from original 60%.

Ionic liquids comprising a mixture of one or more triflate or bis(trifluoromethylsulfonyl)imide salt(s) with one or more Lewis acids(s), wherein the total of the molar contents of the Lewis acid(s) in the mixture is from about 0.01-98%, are provided, that are useful as catalysts in Lewis acid catalyzed reactions.

The invention relates to a gel-type polymer electrolyte and a preparation method thereof. The gel-type polymer electrolyte membrane is prepared by using amine terminated nitrile rubber as a matrix of the solid electrolyte, dissolving the matrix, lithium salt, epoxidized polysilsesquioxane, and 1-butyl-3-methylimidazolium trifluoro methane sulfonate in an organic solvent, pouring the solvent on a teflon template, and carrying out heat treatment in a baking oven after volatilizing tetrahydrofuran. Compared with the prior art, the operation is simple; the membrane forming is easy; and the prepared membrane is smooth and uniform, has good mechanical properties, high room-temperature conductivity, and stable electrochemical window, and the prepared membrane used as solid electrolyte materials for the lithium ion battery has an application prospect.

The invention discloses an aqueous zinc ion battery electrolyte and application thereof. The aqueous zinc ion battery electrolyte disclosed by the invention contains solvent water, high-concentrationelectrolyte salt and zinc salt;the zinc salt is a water-soluble salt; the high-concentration electrolyte salt is potassium bis(fluorosulfonyl) imide and/or potassium trifluoromethanesulfonate, and themass molar concentration is not less than 10mol/kg. According to the electrolyte, due to the fact that high-concentration potassium bis(fluorosulfonyl) imide and/or potassium trifluoromethanesulfonate are/is added, a large number of water molecules in the electrolyte can be consumed due to the strong solvation effect, the hydration effect of zinc ions is reduced, and zinc dendrites formed by thezinc ions in dissolution and deposition are inhibited; in addition, the strong solvation effect of the high-concentration electrolyte salt and solvent water molecules can reduce the electrochemical activity of the water molecules, improve the electrochemical window of the electrolyte, reduce the hydrogen evolution reaction, reduce the dissolution effect of zinc, inhibit the decomposition of the water molecules on the surface of the electrode, reduce the corrosion dissolution of the zinc negative electrode and prolong the cycle life of the aqueous zinc ion battery.

The present invention provides: an organic compound increasing an open circuit voltage, and showing high photoelectric conversion efficiency; a semiconductor film electrode employing the organic compound as a dye; a photoelectric conversion element employing the semiconductor film electrode; and a photoelectrochemical solar cell employing the photoelectric conversion element. The organic compound is represented by the following general formula:

wherein A is a carbazole ring; L₁ is an electron transfer linking group having at least one heterocyclic ring selected from the group consisting of a thiophene ring, a furan ring, a pyrrole ring, and a condensed heterocyclic ring formed from any combinations of these rings; R is a substituent group bound to at least one electron transfer linking group selected from the group consisting of an alkyl group, an alkoxy group, and an aryl group; X is at least one electron withdrawing group selected from the group consisting of a cyano group, a carboxylic acid group, an ester group, an amide group, a trifluoromethyl group, a pentafluoroethyl group, a sulfonate group, and a trifluoromethanesulfonate group; M is a hydrogen atom or a salt-forming cation; and n is an integer of 1 to 12.

The invention provides a method for electrodepositing metal lanthanum in an ionic liquid, relates to a method for electrodepositing metal lanthanum, and is used for solving the problem that a single metal lanthanum deposition layer can not be obtained in the ionic liquid 1-butyl-3-methylimidazolium trifluoro-methanesulfonate currently. The method comprises the following steps: adding anhydrous lanthanum chloride in the ionic liquid 1-methyl-3-ethyllimidazolium di(trifluoromethylsulfonyl)imine and evenly mixing, so as to obtain an electroplating liquid; and electroplating by using a constant current mode based on pretreated copper sheet as a cathode and platinum, graphite or titanium-based oxide as an anode, so as to obtain metal lanthanum deposited on the surface of a substrate. According to the invention, a La plated layer prepared by adopting an electrodeposition method is smooth and even, and the plating liquid components are simple and easy to control. In the invention, electrodeposited metal lanthanum can be applied to the field of functional material preparation.

The invention relates to a method for preparing niacinamide nucleoside salt. The method comprises the following steps: replacing ions by niacinamide nucleoside trifluoromethane sulfonate prepared by deacetylation of triacetyl niacinamide nucleoside trifluoromethane in an organic solvent with acids, crystallizing to separate out a crude product, and pulping, thereby obtaining the corresponding niacinamide nucleoside salt. The ion replacement process in the invention overcomes the defects of chemical methods and extraction methods, and is suitable for industrial production.

The invention discloses lithium ion battery flame-retardant electrolyte which comprises raw materials of an electrolyte lithium salt, an organic solvent and a flame-retardant additive, wherein the organic solvent is prepared from the following components in parts by volume: 15-40 parts of an organic basic solvent with a high dielectric constant, 5-45 parts of a low-vapor pressure solvent, 10-55 parts of a low-viscosity solvent and 2-35 parts of an indoor temperature ionic liquid; the anion of the indoor temperature ionic liquid is prepared from at least one ion of tetrafluoroborate, hexafluoroborate, trifluoromethanesulfonate, bi-trifluoro sulfonamide and trifluoroacetic acid; the cation of the indoor temperature ionic liquid is ammonium cation; the flame-retardant additive is at least one of fluoroproplylene carbonate, di-fluoroproplylene carbonate, trifluoroproplylene carbonate, fluorobenzene ether, fluoro ether and propyl-2,2,2-trifluoro-ethyl carbonate; the mass of the flame-retardant accounts for 1-20% of the total mass of the electrolyte. By adopting the lithium ion battery flame-retardant electrolyte, not only is the flame-retardant property of the electrolyte remarkably improved, but also the charge and discharge property of a battery is slightly affected.

The invention discloses a method for synthesizing a 3-hydroxy-3-arylindole-2-one derivative shown as a structural formula (I), which comprises the following steps of: fully reacting raw materials such as an isatin compound shown as a structural formula (II) and arylboric acid shown as a structural formula (III) in an inert organic solvent in the presence of a copper catalyst, a nitrogen-containing bidentate ligand and an alkaline compound, and separating and purifying reaction liquid after the reaction is finished to obtain the 3-hydroxy-3-arylindole-2-one derivative, wherein the copper catalyst is one or any combination of copper trifluoromethanesulfonate, copper acetylacetonate, copper acetate, cuprous iodide, copper bromide, copper fluoride and copper chloride. The method is high in implementation value and good in social benefit and economic benefit.

The invention relates to a trifluoromethanesulfonic acid preparation method. The method includes: taking halogenated trifluoromethane as a raw material, adding zinc powder and terahydrofuran under the environment of nitrogen protection and feeding trifluoro bromomethane gas prior to adding catalytic amount to obtain lodine; obtaining trifluoromethyl zinc halide through temperature control reaction, adding sulfur trioxide for continuous reaction to generate halogenated trifluoromethane sulfonic acid zinc; adding reaction liquid into alkali liquid for neutralization, evaporating filter liquid to dryness to obtain solid sodium trifluoromethanesulfonate salt prior to acidizing and rectifying to obtain trifluoromethanesulfonia acid. With the method, generation of accessory substances during the production is effectively reduced; the situation about higher fluorinion, chloridion and sulfate ion in trifluoromethanesulfonia acid products in a traditional technology is avoided. In addition, the purity of the trifluoromethanesulfonia acid obtained from distillation and purification can reach 99.95% above, and the yield can reach 83%.