996 results about "Oxygen atom" patented technology

The lithium secondary battery is characterized in that the negative electrode is a lithium metal element or an alloy containing the same, and the lithium secondary battery uses an electrolyte solution for lithium secondary batteries containing an acrylic acid ester represented by general formula (1): # imgabs0 # formula (1) in which X is a hydrogen atom, a fluorine atom, a chlorine atom, a bromine atom, an iodine atom, or a CFX1X2 group (wherein X1 and X2 are the same or different and are hydrogen atoms, fluorine atoms, or chlorine atoms). ), a cyano group, a linear or branched fluoroalkyl group having 1-21 carbon atoms, a substituted or unsubstituted phenyl group, or a linear or branched alkyl group having 1-20 carbon atoms; y represents a directly linked bond, a C1-10 hydrocarbon group which may have an oxygen atom or a sulfur atom, or a-CH2CH2N (R1) SO2-group (wherein R1 represents a C1-4 alkyl group); ),-CH2CH (OY1) CH2-(In the formula, Y1 represents a hydrogen atom or an acetyl group. ), or-(CH2) nSO2-group (n is 1-10); and Rf is a linear or branched perfluoroalkyl group having 2 to 7 carbon atoms.

Provided are: a resist underlayer film-forming composition that is capable of forming a resist underlayer film that can impart excellent pattern rectangularity to a resist pattern; and a method for producing a semiconductor substrate. The method for producing a semiconductor substrate comprises: a step for directly or indirectly coating a substrate with a resist underlayer film-forming composition; a step for forming a resist film on the resist underlayer film formed by the aforementioned step for coating a resist underlayer film-forming composition; a step for exposing the resist film to radiation; and a step for developing at least the exposed resist film. The resist underlayer film-forming composition contains a polymer and a solvent. The polymer contains a repeating unit (1) having an organosulfonate anion moiety and an onium cation moiety, a repeating unit (2) represented by formula (2), and a repeating unit (3) represented by formula (3). (In formula (2), R4 is a group selected from the group consisting of groups represented by any of formulas (2-1) to (2-8).) (In formula (3), R6 is a group that contains a substructure represented by formula (3-1) or (3-2).) (In formulas (3-1) and (3-2), X1 and X2 are each independently an oxygen atom, a sulfur atom, or a nitrogen atom. A formula in which a solid line and a broken line are combined indicates a single bond or a double bond each independently.)

The invention discloses a zinc-bromine flow battery multifunctional negative electrode electrolyte and a preparation method thereof, and belongs to the technical field of electrochemical energy storage, and the method comprises the following steps: uniformly stirring and mixing a solvent, deionized water and a cosolvent, adding an electrolyte, stirring until the electrolyte is completely dissolved, then adding a supporting electrolyte and a negative electrode additive, stirring until the supporting electrolyte and the negative electrode additive are completely dissolved, and obtaining the zinc-bromine flow battery multifunctional negative electrode electrolyte. The multifunctional negative electrode electrolyte of the zinc-bromine flow battery is obtained; the negative electrode cosolvent is dimethylformamide; and the negative electrode additive is at least one of saponin and cinnamyl aldehyde. Saponin molecules are adsorbed on the surface of the zinc electrode, and electronegative carboxyl groups of the saponin molecules form an electrostatic repulsion net in an electric double layer, so that zinc ions are forced to be uniformly dispersed, local ion concentration hot spots are eliminated, and dendritic crystal nucleation is inhibited from the source. In cinnamyl aldehyde, the strong electronegativity of oxygen atoms and the electronegativity of aldehyde oxygen are far higher than those of hydrogen, so that electrons are strongly attracted, adjacent carbon atoms are positively charged, polar adsorption sites are formed, the hydrogen evolution reaction is effectively inhibited, and the stability and the cycle life of the battery are greatly improved.

The invention provides a secondary battery electrolyte additive and a preparation method thereof. The additive is obtained by bonding oxygen atoms of four hydroxyl groups on R1-R5 groups in a compound as shown in a structural formula I with a group A and a group B through any one of the following modes: (1) bonding with two groups A; (2) bonding with two B groups; (3) bonding with one A group and one B group: # imgabs0 # wherein n is 0 or 1; r1 to R5 are independently selected from H, alkoxy of C1 to C5, hydroxyl and alkyl of C1 to C5 substituted by hydroxyl, and at least four hydroxyl are contained in R1 to R5; * represents a bonding position. The additive can form a stable, cross-linked and tough SEI film, and battery impedance is further reduced. The additive is cheap and easily available in preparation raw materials, low in cost, short in reaction route, simple in purification process, high in production efficiency and wide in application prospect in the secondary battery electrolyte.

The invention relates to the technical field of three-dimensional porous framework crystal materials, in particular to a Zn-MOF microporous crystal material, a preparation method thereof and application of the Zn-MOF microporous crystal material in gas separation. The molecular formula of the Zn-MOF microporous crystal material is [Zn2 (PMA) (TPB)]. XH2O, PMA is deprotonated 1, 2, 4, 5-pyromellitic acid, TPB is 1, 2, 4, 5-(4-pyridyl) benzene, the Zn-MOF microporous crystal material is formed by coordination of Zn, an oxygen atom of the 1, 2, 4, 5-pyromellitic acid and an N atom of the 1, 2, 4, 5-(4-pyridyl) benzene, and the Zn-MOF microporous crystal material has a three-dimensional frame structure. The Zn-MOF microporous crystal material can be applied to the field of ethylene separation and purification.

Provided is an inorganic particle-dispersed slurry composition which has excellent storage stability and printability, is capable of promoting a debinding treatment even at low temperatures, is capable of suppressing oxidation of inorganic particles, has little residual carbon after firing, has excellent sinterability, and is capable of obtaining a highly reliable electronic component. Also provided is a method for producing an inorganic sintered body using the slurry composition. The present invention is an inorganic particle dispersed slurry composition containing a binder resin (A), inorganic particles (B), and a solvent (C), and further containing a carboxylic acid anhydride having a boiling point of 200 DEG C or more and an oxygen atom content of 40 wt% or more as a debinder aid (D).

The invention provides an Al-RE rare earth alloy powder fuel forming an oxygen diffusion channel at a grain boundary, which is characterized in that a rare earth intermediate alloy Al-RE is added into a pure Al melt, alloying is carried out, and a solidification structure capable of diffusing oxygen atoms is formed after supersonic atomization of an inert gas atomization system, non-equilibrium cooling and staged treatment. In the high-temperature oxidation environment, the rare earth alloy powder fuel is oxidized, meanwhile, the grain boundary also starts to be oxidized, oxygen is diffused from the surface of the powder to the interior, an oxygen diffusion channel and a microstructure are formed through grain boundary oxidation, and complete oxidation combustion is achieved. The micron-sized powder fuel with the oxygen diffusion channel formed at the crystal boundary in the alloy powder fuel is low in production cost and easy to store, and has the advantages of reaction characteristics of nano-particle powder and high combustion efficiency. And due to the existence of an oxygen diffusion channel in the powder, internal crystal grains can be oxidized to a great extent, and almost no unburned residue exists, so that the combustion efficiency and the economic benefit of the fuel are improved, and the propelling capacity of the fuel is also greatly improved.

An electrolyte solution for a lithium secondary battery, including a first solvent comprising a heterocyclic compound having at least one double bond, and any one of an oxygen atom and a sulfur atom; a second solvent including at least one of an ether-containing compound, an ester-containing compound, an amide-containing compound, and a carbonate-containing compound; a lithium salt; lanthanum nitrate; and an additive including lithium nitrate.

This application discloses a nonaqueous electrolyte solution, a secondary battery containing the nonaqueous electrolyte solution, and an electrical device. The nonaqueous electrolyte solution includes: a compound A including a saturated five-membered ring or six-membered ring and at least one fluorine-containing substituent, where the ring contains 1 or 2 oxygen atoms as ring atoms, and a ring carbon atom connected to the oxygen atom in the ring is not directly replaced by fluorine; and a compound B including a saturated five-membered ring or six-membered ring that contains 1 or 2 oxygen atoms as ring atoms, where at least one ring carbon atom connected to the oxygen atom in the ring is directly replaced by at least one fluorine atom. The nonaqueous electrolyte solution can improve cycle performance and low-temperature discharge capabilities of the secondary battery.

The invention discloses an anti-crosstalk long-life sodium ion battery, which is used for prolonging the cycle life of the sodium ion battery, inhibiting the gas production problem and improving the safety performance. The blocking agent is prepared by grafting the organic metal framework with the chelating agent, then the blocking agent is coated on the positive plate or the diaphragm, and then the sodium ion battery cell is manufactured. Oxygen atoms and nitrogen atoms on the blocking agent contain a large number of lone pair electrons and can firmly adsorb free transition metal ions on a positive electrode, so that the transition metal ions do not reach the surface of a negative electrode any more, and the performances such as battery life and safety are improved.

Methods and systems for the electrochemical epoxidation of alkenes to generate an epoxide are described herein. Said methods and systems comprise: contacting an anode comprising an oxygen atom transfer electrocatalyst with an alkene in the presence of an electrolyte comprising water; applying a voltage to the anode and a cathode to generate the epoxide; wherein the oxygen atom transfer electrocatalyst comprises an at least partially oxidized palladium-platinum alloy characterized by the formula FX1: PdyPtzOx; wherein y is greater than 0 and less than 1; z is greater than 0 and less than 1; wherein the sum of y and z is equal to 1; and x is selected from the range of 0 to 2. The methods and systems disclosed herein comprise a significant advancement in the electrocatalytic epoxidation of alkenes in aqueous and mixed electrolytes using water as the oxygen atom transfer source.

The invention provides a crystal pulling method for improving the BMD defect density in monocrystalline silicon and a monocrystalline silicon rod, and belongs to the technical field of monocrystalline silicon crystal pulling, and particularly relates to the following steps: stabilizing the oxygen content in a crystal in a relatively high interval by cooperatively regulating and controlling the argon flow, the furnace pressure, the crucible rotating speed, the crystal rod rotating speed and the pulling speed, providing a sufficient oxygen source for generation of BMD defects, and improving the BMD defect density in the monocrystalline silicon on the basis of stabilizing the oxygen content in the crystal in a relatively high interval. In the equal-diameter process, temperature compensation is carried out on a crystal bar through a preset temperature compensation device, diffusion and precipitation of oxygen atoms are effectively promoted to form BMD crystal nucleuses, the BMD body defect density and the axial distribution uniformity are remarkably improved, the specification lower limit of the BMD density is promoted to be improved to 1.0 E + 11 ea / cm < 3 > or above, the internal gettering capacity of a silicon wafer is finally enhanced, and the service life of the silicon wafer is prolonged. And a reliable guarantee is provided for improving the performance and yield of the device.

In one form of the present disclosure, a quantum sensor comprises a quantum device. The quantum device comprises gallium nitride (GaN) with a color center with a zero-phonon line (ZPL) between about 900 nanometers (nm) and about 990 nm. The GaN can be doped with silicon (Si) and have low carbon (C) and oxygen (O) impurities. In one example, the quantum device is GaN doped with about 1016 atoms of Si per cm3, having less than about 8×1015 C atoms per cm3 and less than about 6×1015 O atoms per cm3, and a Ga vacancy density less than about 1016 vacancies per cm3.

The invention provides a battery electrolyte film-forming additive, a battery electrolyte and application of the battery electrolyte film-forming additive, the battery electrolyte film-forming additive is one or more of alkyl phosphonate alkoxy silane compounds, the compound has a chemical structure shown in a formula (I), R1, R2, R3, R4 and R5 are independently selected from one of C1-C10 alkyl groups, n is larger than or equal to 1 and smaller than or equal to 10, and n is an integer. P with electrophilic property in the formula shows relatively high reduction potential; oxygen atoms react with active points of a silicon negative electrode, so that the activity of a passive film layer can be reduced; the high-bond-energy Si-O bond and chain alkyl structure can endow the passivation film with flexibility and stability. Under the synergistic cooperation of the structures, the battery electrolyte film-forming additive can generate a compact passive film layer with flexible and stable characteristics on a silicon negative electrode, the continuous consumption of the battery electrolyte caused by the expansion of silicon particles in the circulation process is inhibited, the interface impedance is reduced, and the battery performance is improved. # imgabs0 #

The invention discloses an electrolyte and a lithium battery, which are used for solving the technical problems that the charging temperature is increased, the side reaction of a system is increased, the lithium precipitation risk of a negative electrode is increased and the cycle performance is deteriorated when the charging rate of the existing lithium battery is improved. The electrolyte comprises a lithium salt, a solvent and an additive, the solvent comprises fluorocarboxylic ester, and the additive comprises an additive A. In the design, by adding the additive A into the electrolyte, when oxygen atoms in the substance structure are formed, an electron can be obtained, a five-membered ring is broken, and a sulfite product is further obtained through reaction, so that the interface film-forming impedance can be effectively reduced, and the risk of temperature rise and lithium precipitation can be reduced; meanwhile, the fluorocarboxylic ester in the solvent is matched, so that the dynamic stability and the thermal stability can be considered, the fast charging performance, the high-temperature circulation performance and the storage performance of the lithium battery are considered, and in addition, the safety performance of the lithium battery can also be improved.

The utility model discloses a safety type active water molecule electrolysis device which comprises a shell with an air flow channel, a membrane electrode assembly is arranged in the shell, the membrane electrode assembly divides the air flow channel into an air inlet end and an air outlet end, the anode side of the membrane electrode assembly faces the air inlet end, the cathode side of the membrane electrode assembly faces the air outlet end, and the air outlet end faces the air outlet end. The air inlet end is provided with a pure iron foil for air flow to pass through, the pure iron foil absorbs oxygen generated by electrolyzing water molecules on the anode side of the membrane electrode assembly, and the exhaust end is provided with an ePTFE microporous breathable protective film. Through the mode, the safe active water molecule electrolysis device and equipment can absorb oxygen in the equipment, so that the oxygen content is in a lower state, the corrosion damage of oxygen-enriched atoms is avoided, and the spontaneous combustion risk caused by over-high internal oxygen concentration is avoided.

The invention provides an electrolyte, a secondary battery and an electric device. The electrolyte includes a first additive having a chemical formula of R ((CH3) mSi) n, where R includes at least one of a phosphate group, a phosphite group, a borate group, an amino group, an isocyanate group, a fluorine atom, an oxygen atom and a sulfur atom, m is 1, 2 or 3, and n is 1, 2 or 3. According to the electrolyte, by introducing the first additive, the conductivity of an SEI film can be improved, and the transmission performance of lithium ions can be improved. And meanwhile, due to the introduction of the first additive, the SEI film has relatively good stability, so that the battery has relatively good cycle performance.

A paste that includes particles of a layered material in an ammonia aqueous solution. The particles include one or plural layers, the layers having a layer body represented by MmXn, wherein M is at least one metal of Group 3, 4, 5, 6, or 7, X is a carbon atom, a nitrogen atom, or a combination thereof, n is not less than 1 and not more than 4, and m is more than n but not more than 5, and a modifier or terminal T exists on a surface of the layer body, wherein T is at least one selected from the group consisting of a hydroxyl group, a fluorine atom, a chlorine atom, an oxygen atom, and a hydrogen atom, wherein the paste has a viscosity of 1 Pa·s or more at a shear velocity of 1 / s when the paste has a solid content concentration of 1.0% by mass.

The invention discloses a method for improving the oxidation resistance of nickel-based superalloy, and belongs to the technical field of metal material surface modification. Based on the high-energy transient effect of laser shock waves, the method mainly comprises the key steps of alloy surface pretreatment, laser shock peening process implementation, post-treatment and the like. Specifically, firstly, the surface of the nickel-based single crystal alloy is subjected to pretreatment such as polishing and cleaning, surface defects and pollutants are removed, and the treatment quality is guaranteed; then, according to the material characteristics and performance requirements of the nickel-based single crystal alloy, laser parameters such as laser energy, pulse width and light spot diameter are accurately set, and proper restraint layer and absorption layer materials are selected; then, high-energy pulse laser is utilized to irradiate the absorption layer, high-temperature and high-pressure plasma is induced to be generated, the plasma expands and explodes to generate strong shock waves, the shock waves act on the alloy surface, the surface material is subjected to severe plastic deformation, a residual compressive stress layer with the depth capable of reaching hundreds of micrometers is formed, meanwhile, surface grains are refined, and the microstructure is optimized; and after the strengthening treatment is completed, simple cleaning and performance detection post-treatment are carried out. Through laser shock strengthening, a special organization structure with high density and low defect density is formed on the surface of the nickel-based single crystal alloy, diffusion and invasion of oxygen atoms are effectively hindered, and the oxidation resistance of the alloy is remarkably improved. According to the method, the controllability of technological parameters is high, the strengthening effect can be accurately regulated and controlled, the treatment process is free of pollution and high in efficiency, the obtained strengthened nickel-based single crystal alloy can be widely applied to the fields such as aerospace engine hot end parts and nuclear energy equipment which have strict requirements for high-temperature oxidation resistance, the reliability of related parts is greatly improved, and the service life of the related parts is greatly prolonged.

The present invention relates to a silicon-carbon mixture, a method for preparing same, and a negative electrode active material and a lithium secondary battery comprising same. The silicon-carbon mixture includes two or more kinds of composites, comprises silicon particles, magnesium silicate, and carbon, and has a molar ratio of oxygen (O) atoms to silicon (Si) atoms (O / Si) that satisfies 0.06 to 0.90. Accordingly, when the silicon-carbon mixture is applied to a negative electrode active material, it is possible to simultaneously enhance the discharge capacity, initial efficiency, and capacity retention rate after cycles of a lithium secondary battery.

A compound has a molecular weight of 500 to 5,000 and is composed of a hydrogen atom, a carbon atom, and a hetero atom. The hetero atom is at least one selected from an oxygen atom, a sulfur atom, a fluorine atom, and a silicon atom, and has one or more alicyclic structures, one or more aromatic ring structures directly bonded to the alicyclic structures, and one or more monovalent substituents Ms directly bonded to the aromatic ring structures. The monovalent substituent Ms is at least one substituent selected from a group containing a monovalent fluorine-containing aliphatic group, a group containing a monovalent sulfur fluoride-containing group, a group containing a monovalent siloxanyl group, and a group containing a monovalent saturated hydrocarbon group.

The present application provides a negative electrode plate, an electrochemical device and an electronic device of a sodium ion battery, wherein the negative electrode plate includes a negative electrode current collector, a carbon material coating formed on at least a portion of the surface of the negative electrode current collector, and a sodium metal layer formed on at least a portion of the surface of the carbon material coating away from the negative electrode current collector, the thickness of the carbon material coating is less than or equal to 10 μm, the carbon material coating includes a carbon material and a polymer binder, the carbon material includes an oxygen-containing group, and the mass content of oxygen atoms in the carbon material is ≥ 0.1%. The negative electrode plate of the sodium ion battery provided by the present application deposits metallic sodium on the surface of the negative electrode current collector during the first charge, and the metallic sodium formed by the deposition can adhere to the carbon material coating on the surface of the negative electrode current collector, and the carbon material coating can effectively reduce the overpotential of sodium metal deposition, inhibit the formation of sodium dendrites, and is conducive to improving the cycle performance of the battery.

The invention provides an energy storage lithium ion battery high-temperature storage electrolyte additive, an electrolyte and a battery, and belongs to the technical field of lithium ion batteries, molecules of the electrolyte functional additive contain P = O groups, and oxygen atoms in the groups have high electronegativity and can generate complexation with transition metal ions. In the high-temperature storage process of the lithium ion battery, the complexing action can effectively inhibit the dissolution of transition metal ions and reduce a series of adverse effects caused by the dissolution of the transition metal ions, so that the self-discharge phenomenon of the battery during high-temperature storage is improved, and the high-temperature storage capacity retention rate is remarkably increased; and the performance of the battery in a high-temperature environment is improved fundamentally.

This reactive silicon group-containing organopolysiloxane, which contains, per molecule thereof, one group represented by structural formula (1) and bonded to a silicon atom at the end of a linear organopolysiloxane, forms a film having excellent water repellency, water sliding properties, and durability. (In the formula, R1 and R2 each independently represent a hydrogen atom, a C1-C10 aliphatic saturated hydrocarbon group, or a C6-C10 aryl group, R3s each independently represent a C1-C10 aliphatic saturated hydrocarbon group or a C6-C10 aryl group, Z represents an oxygen atom, a C2-C12 alkylene group, or a C8-C12 alkylene arylene group, and a line with a wavy line represents a bond.)

The present invention relates to a silicon-carbon mixture, a method for preparing same, and a negative electrode active material and a lithium secondary battery comprising same. The silicon-carbon mixture includes two or more kinds of composites, comprises silicon particles, magnesium silicate, and carbon, and has a molar ratio of oxygen (O) atoms to silicon (Si) atoms (O / Si) that satisfies 0.06 to 0.90. Accordingly, when the silicon-carbon mixture is applied to a negative electrode active material, it is possible to simultaneously enhance the discharge capacity, initial efficiency, and capacity retention rate after cycles of a lithium secondary battery.

The invention discloses an electrolyte additive, an electrolyte and a battery, the electrolyte additive comprises a first additive and a second additive, the first additive comprises a compound shown as a formula 1: # imgabs0 #, R1 and R2 are respectively and independently selected from at least one of H, phenyl, halogen, C1-C6 alkyl, C1-C6 halogenated alkyl and # imgabs1 #, and R1 and R2 are not H at the same time; r3, R4 and R5 are respectively and independently selected from at least one of C1-C3 alkylene groups, oxygen atoms, O = S = O, C = O and S = O, at least one of R3, R4 and R5 is selected from O = S = O, C = O and S = O, and at least one of R3, R4 and R5 is selected from oxygen atoms; and the second additive comprises a compound shown as a formula 2: # imgabs2. The electrolyte additive is added into the electrolyte of the battery, so that the fast charging performance of the battery can be improved, and the high-temperature cycle performance can be improved.

To provide a resist composition or the like that is superior in all of sensitivity, roughness, and resolution.SOLUTION: The present invention provides a resist composition that generates an acid upon exposure and that changes solubility in a developer solution due to the action of the acid, the resist composition comprising a compound containing a cation (C0) represented by general formula (c0). [In the formula, Y0 represents a polar group containing an oxygen atom. Rf0 represents a fluorine atom or a fluorinated alkyl group. R01 represents a substituent (excluding a polar group containing an oxygen atom, a fluorine atom, and a fluorinated alkyl group), and R02 and R03 each independently represent a substituent (excluding an iodine atom)].SELECTED DRAWING: None

This nonspecific reaction inhibitor is a copolymer containing a first repeating unit represented by formula (1) and a second repeating unit represented by formula (2). In formula (1), R1, R2, and R3 are each independently a hydrogen atom or a methyl group, X is NH or an oxygen atom, Y is SO3 - or COO-, and Yn and m are each independently an integer from 1 to 5. In formula (2), R4 is a hydrogen atom or a methyl group, Z is NH or an oxygen atom, and A is a linear or branched alkyl group with 12 to 40 carbon atoms.

A process to form a crosslinked composition, the process comprising thermally treating a composition that comprises the following components: a) at least one olefin / silane interpolymer comprising at least one Si—H group, b) at least one peroxide, and c) at least one crosslinking coagent, wherein the composition has a mole ratio of active oxygen atom to carbon-carbon double bond of ≥0.02 and ≤0.7, based on the active oxygen atom content of component b and the carbon-carbon double bond content of component c. A composition that comprises the following components: a) at least one olefin / silane interpolymer comprising at least one Si—H group, b) at least one peroxide, and c) at least one crosslinking coagent, wherein the composition has a mole ratio of active oxygen atom to carbon-carbon double bond of ≥0.02 and ≤0.7, based on the active oxygen atom content of component b and the carbon-carbon double bond content of component c.

The invention discloses a fluorescent probe for monitoring formaldehyde, a preparation method, application and a portable sensor. The structural formula of the fluorescent probe for monitoring formaldehyde is shown as a formula (I): # imgabs0 #, in which R1 is selected from any one of C1-C2 alkyl, phenyl and substituted phenyl; the substituted phenyl is preferably selected from alkyl substituted phenyl, and more preferably selected from C1-C3 alkyl substituted phenyl; r2 is selected from any one of oxygen atoms and sulfur atoms; r3 is selected from any one of cyano and carboxyl; a is selected from any one of a group shown in a formula (II) and a group shown in a formula (III): # imgabs No.1. The fluorescent probe provided by the invention has relatively strong fluorescence emission performance in both solution and solid states, can be used for monitoring formaldehyde in real time and has relatively high sensitivity and selectivity, and the preparation method of the fluorescent probe provided by the invention is simple in process, convenient to operate and suitable for industrial production. Control is easy, and cost is low.