18results about How to "Reduce oxidative decomposition" patented technology

The invention relates to the technical field of wear-resistant composite materials, and particularly provides a modification method of ceramic particles, a ceramic-reinforced high-chromium iron-based composite material and a preparation method of the ceramic-reinforced high-chromium iron-based composite material, and the modification method comprises the following steps: carrying out decontamination, hydrofluoric acid coarsening, divalent tin sensitization, metal palladium activation, chemical Ni plating, ceramic micro powder coating and other treatments on SiC or ZTA and other ceramic particles; therefore, metallization modification can be rapidly achieved on the surfaces of the ceramic particles, decomposition of the ceramic particles is prevented, the connection strength between the ceramic particles and the metal-based material is effectively improved, and the ceramic reinforced high-chromium iron-based composite material with high hardness and high abrasion resistance is prepared. And technical support is provided for developing wear-resistant parts of mechanical equipment under harsh working conditions of metallurgy, mines, coal, building materials and the like.

The invention discloses an electrolyte and a lithium battery, and additives of the electrolyte comprise a compound as shown in a structural formula 1, a cyclic sulfate compound and a sultone compound, the proportions of the compound as shown in the structural formula 1, the cyclic sulfate compound and the sultone compound in the electrolyte are awt%, bwt% and cwt% respectively, 2.5 b-a is more than or equal to-0.5 and less than or equal to 4, and 2a + c is more than or equal to 5 and less than or equal to 8. In the design, the compound shown in the structural formula 1 can form stable interfacial films on the surfaces of the positive electrode and the negative electrode, oxidative decomposition of an electrolyte at high temperature is reduced, consumption of the electrolyte is inhibited, the high-temperature cycle performance is improved, and the cyclic sulfate compound can reduce film-forming impedance and improve gram volume exertion; the sultone compound can improve the high-temperature storage performance. Therefore, the high-temperature cycle and high-temperature nesting performance of the lithium battery is effectively improved by adjusting the ratio of the compound shown in the structural formula 1, the cyclic sulfate compound and the sultone compound.

The invention discloses a local high-concentration high-voltage electrolyte, a preparation method and a battery, and belongs to the technical field of electrolytes. The local high-concentration high-voltage electrolyte comprises a sodium salt, a first solvent and a second solvent, the first solvent comprises carbonic ester, the second solvent comprises at least one of a fluoroether solvent and a fluorobenzene solvent, the first solvent and the second solvent are mutually soluble, the solubility of the sodium salt in the first solvent is defined as S1, the solubility of the sodium salt in the second solvent is defined as S2, and S1 is larger than S2. According to the electrolyte, the overall salt concentration can be reduced, the viscosity of the electrolyte can be reduced, the wettability of the electrolyte can be improved, so that the conductivity of ions is improved, in addition, oxygenolysis of the first solvent can be slowed down, and furthermore, the second solvent has high oxidation resistance and oxidation resistance, so that the service life of the electrolyte is prolonged. And the oxygenolysis of the electrolyte under a high-voltage condition can be inhibited, so that the cycling stability of the battery can be improved, the battery capacity is improved, and the battery is suitable for a high-voltage application scene.

The invention belongs to the technical field of cosmetics, and particularly relates to a cosmetic composition containing deoxyarbutin and a preparation method of the cosmetic composition. The cosmetic composition is prepared from the following raw materials in percentage by weight: 2%-5% of deoxyarbutin, 9%-20% of polyol, 0.7%-1.5% of a bacteriostatic agent, 50%-75% of nanocellulose hydrogel, 0-5% of a humectant, 0-1% of a thickening agent and the balance of deionized water. According to the invention, oxygenolysis of deoxyarbutin in water is prevented, the texture and the smearing feeling of cosmetics are remarkably improved, the cosmetics can be better attached to skin, the product action time is prolonged, and the action effect and the use comfort feeling are improved.

The invention provides an electrolyte of a high-safety sodium ion battery, which comprises the following components: a solvent which takes propylene carbonate (PC) as a main solvent and contains ethylene carbonate (EC) and dimethyl carbonate (DMC); the coalescing agent is fluoroethylene carbonate (FEC) and 1, 3-propane sultone (1, 3-PS); conducting salt: sodium perchlorate (NaClO4); additives: acesulfame sodium and a proper amount of sodium nitrate. The sodium ion battery provided by the invention has more excellent properties.

The invention relates to the technical field of blackcurrant extraction materials, in particular to a blackcurrant extract and a preparation method thereof. The preparation method of the blackcurrant extract comprises the following steps: crushing and enzymolysis: crushing blackcurrant fruits into fruit pulp, and adding cellulase, pectinase, carotenoid and water into the fruit pulp for enzymolysis to obtain enzymatic hydrolysate; centrifugal filtration: performing centrifugal filtration on the enzymatic hydrolysate to obtain an extracting solution; performing vacuum concentration: performing vacuum concentration on the extracting solution to obtain a concentrated solution; freeze-drying: freeze-drying the concentrated solution to obtain the blackcurrant extract. The carotenoid is added, the freeze drying technology is adopted, the carotenoid scavenges free radicals, the freeze drying technology reduces the oxidative decomposition of anthocyanin in the production process by reducing the activity of oxidase and evaporating water, and therefore the yield of the blackcurrant extract and the purity of the anthocyanin are improved.

The application provides a battery electrolyte, comprising an additive component, the additive component comprising a nitrogen-containing heteroatom bridged ring structure, fluorine-containing acid root ions and / or fluorine-containing imine negative ions. The application modifies the electrolyte by selecting a specific additive component to form a stable and firm CEI film on the positive electrode surface to protect the electrode structure, and introduces fluorinated anions to enhance the association of anions and electrolyte solvent molecules, so as to improve the oxidation stability of the electrolyte. The modified electrolyte can be used to solve the instability of high-nickel ternary materials during the cycle process and the problem that the traditional electrolyte is prone to oxidative decomposition at high voltage, so as to improve the cycle life and rate performance of the ternary lithium battery at high voltage. The application is helpful to improve the oxidation stability of the electrolyte, reduce the charge transfer impedance and interface impedance, improve the ion diffusion rate, and enhance the stability of the electrode material structure.

The invention relates to the field of pesticide suspending agents, in particular to an ethiprole-dinotefuran oil suspending agent and a preparation method and application thereof. The ethiprole-dinotefuran oil suspending agent is prepared from the following components in parts by weight: 5-20 parts of ethiprole, 6-10 parts of dinotefuran, 2-4 parts of a stabilizer, 11-15 parts of a surfactant, 2-4 parts of a thickening agent and the balance of an oil solvent, wherein the total weight part of the ethiprole-dinotefuran oil suspending agent is 100 parts; the stabilizer comprises at least one of tert-butylhydroquinone and epoxidized soybean oil. The stability of ethiprole and dinotefuran is effectively improved through the oil solvent, the tert-butylhydroquinone delays oxidative deterioration of the oil solvent, ethiprole and dinotefuran, and the epoxidized soybean oil helps to reduce the possibility of decomposition of ethiprole and dinotefuran at high temperature; through the cooperation between the oil solvent and the tert-butylhydroquinone and / or the epoxidized soybean oil, the stability after the ethiprole and the dinotefuran are compounded can be effectively enhanced, so that the insecticidal effects of the ethiprole and the dinotefuran are exerted.

The utility model belongs to the technical field of groundwater remediation, and particularly relates to an oxygen injection permeable reactive barrier system for groundwater in-situ remediation, which comprises an underground reaction tank, and the upstream end and the downstream end of the underground reaction tank are respectively provided with an upstream face semi-enclosed clamping groove and a downstream face semi-enclosed clamping groove. A first permeable reactive barrier is vertically and slidably mounted in the upstream face half-wrapped clamping groove, a second permeable reactive barrier is vertically and slidably mounted in the downstream face half-wrapped clamping groove, and an oxygen injection groove is formed between the first permeable reactive barrier and the second permeable reactive barrier. And a gas injection device for injecting oxygen into underground water in the oxygen injection tank is arranged outside the oxygen injection tank. The oxygen injection tank is additionally arranged between the two permeable reactive barriers, the oxidation-reduction environment of underground water is changed by injecting oxygen-containing air, the activity of aerobic microorganisms is improved, and pollutants are promoted to be oxidized, decomposed or degraded so as to be reduced; through cooperation of the first permeable reactive barrier, the oxygen injection tank and the second permeable reactive barrier, simultaneous in-situ treatment of heavy metal pollutants and organic pollutants in underground water is realized, and effluent quality is guaranteed.

The invention provides a composite positive plate as well as a preparation method and application thereof. The method comprises the following steps that an unpressed positive plate is soaked in fluid containing a coating additive, a precursor material is obtained after drying, and the positive plate does not contain the coating additive; and pressing the precursor material to obtain the composite positive plate. According to the invention, after the homogenate coating process of the positive electrode slurry is completed and a pole piece electronic conductive network is preliminarily constructed, in-situ coating is carried out on the surface of the positive electrode active material exposed in the positive electrode piece, so that the high voltage resistance and the electronic conductivity of the positive electrode material are comprehensively improved; therefore, the fast charging performance and the power performance of the secondary battery are improved.

The invention relates to an electrolyte, a lithium ion battery and an electric device. The electrolyte comprises a lithium salt, a solvent and an additive, wherein the additive comprises a compound with a structural general formula as shown in a formula (I): # imgabs0 # in the formula (I), r1, R2 and R3 are respectively and independently selected from a hydrogen atom, a substituted or unsubstituted C1-C6 alkyl group, a substituted or unsubstituted C1-C6 alkoxy group, a substituted or unsubstituted C3-C6 cycloalkyl group, a substituted or unsubstituted C2-C6 unsaturated alkyl group, a substituted or unsubstituted C1-C6 silyl group, a substituted or unsubstituted C1-C6 ether group, a substituted or unsubstituted C2-C6 carboxylic ester group, a fluorine atom or a cyano group. According to the electrolyte provided by the invention, on one hand, sulfur atoms and nitrogen atoms in the additive can be coordinated with transition metal ions, so that the reaction activity of the transition metal ions is inhibited; on the other hand, the additive can form surface films on the anode and cathode surfaces, and the cycle performance of the battery is improved.

The invention discloses a fat-reducing composition containing plant extract ingredients and a preparation method thereof, and belongs to the technical field of fat-reducing compositions. The method comprises the following steps: mixing starch, disodium hydrogen phosphate, citric acid, and deionized water, adding α-amylase, adjusting pH, centrifuging, and treating the solid phase to obtain material A; mixing material A, sodium alginate, Dendrobium officinale extract, and deionized water to obtain material B; mixing pig liver powder, cuttlebone powder, gluconolactone, sucrose fatty acid ester, and deionized water, adding material B, heating to 85-95°C, adding plant extracts, homogenizing, and spray drying to obtain a fat-reducing composition containing plant extract ingredients with good lipid-lowering effect.

The invention relates to the technical field of battery diaphragms, and provides a high-heat-resistance conductive polymer coating diaphragm and a preparation method and application thereof, and the high-heat-resistance conductive polymer coating diaphragm comprises a base film and a coating coated on at least one side of the base film; the components of the coating comprise a polymer and a modifier; and the modifier comprises carboxylated LLZTO and PPTA (poly (p-phenylene terephthamide)). According to the technical scheme, the problems of insufficient high temperature resistance and low ionic conductivity of the polymer coating diaphragm in the prior art are solved.

This invention relates to the field of packaging bag technology, specifically to a moisture-proof and antibacterial composite packaging bag for traditional Chinese medicine. It comprises an outer protective film layer, a middle buffer transition layer, a moisture-proof barrier layer, an antibacterial functional layer, and an inner contact film layer. These layers are arranged from the outside in. The outer protective film layer, middle buffer transition layer, moisture-proof barrier layer, antibacterial functional layer, and inner contact film layer are composited using food-grade adhesives. The middle buffer transition layer is made of low-density polyethylene elastic film. The moisture-proof barrier layer is composited with polyvinyl alcohol high-barrier film and passivated aluminum foil film. The antibacterial functional layer uses food-grade polyolefin film as the substrate. The inner contact film layer uses food-grade polyethylene film. This invention has the following advantages: it integrates multiple benefits such as wear resistance, long-lasting moisture and oxygen barrier, active antibacterial properties, and safety and non-toxicity. Its service life and protective effect are far superior to traditional single-layer and ordinary double-layer packaging.

The invention discloses a positive plate which comprises a current collector and an active material layer attached to at least one surface of the current collector, and the active material layer comprises an additive A. In the pulping process of the positive plate, the diphosphoric acid compound is added, so that the stability of the positive electrode material under high voltage is improved, and the cycle performance of a battery cell is further improved.

The invention relates to an organic additive oxidation resistant insoluble anode for PCB electroplating and a preparation method thereof, and belongs to the technical field of insoluble anodes for PCB electroplating. Comprising a titanium substrate and an insoluble anode coating on the surface of the titanium substrate, the insoluble anode coating is composed of a middle layer and a surface layer which sequentially cover the surface of the titanium substrate, the middle layer is an iridium-doped mesoporous tin dioxide-tantalum dioxide composite layer, and the surface layer is a nitrogen-doped mesoporous carbon-coated metal oxide composite layer. The organic additive oxidation resistance and the electrochemical performance of the insoluble anode can be remarkably improved.

The present application provides an electrochemical device, including a negative electrode plate and an electrolyte, wherein the negative electrode plate includes a negative electrode active material, and the negative electrode active material includes a silicon-based material; the electrolyte includes a first substance, a second substance, and a third substance; the first substance is selected from a fluorobenzene compound or a fluoroether compound; the second substance is selected from at least one of a phosphate, a phosphite, a carbonate, a carboxylate, an ether, or a sulfone; the third substance is a lithium salt; based on the mass of the electrolyte, the mass ratio of the second substance to the third substance is Y, and the range of Y is: 0.8≤Y≤4. The electronic device includes the electrochemical device. The present application can significantly improve the cycle performance of the electrochemical device.

This utility model discloses a composite film fresh-locking bag for packaging fruit juice, comprising a bag body and a cap; the bag body is formed by heat sealing a composite film; the film layer structure of the composite film includes a barrier antibacterial substrate layer, an adhesive layer, and a heat-sealing layer arranged sequentially from the outside to the inside; wherein, the barrier antibacterial substrate layer is a five-layer co-extruded biaxially oriented nylon film, arranged sequentially from the outside to the inside as a printed composite layer, a first barrier layer, a barrier core layer, a second barrier layer, and an antibacterial composite layer. This utility model packaging bag has good oxygen barrier and antibacterial properties, effectively reducing the contact between fruit juice and outside air, slowing down the oxidative decomposition and spoilage of nutrients in the fruit juice, and maintaining its nutritional components and fresh taste. Furthermore, the barrier antibacterial substrate layer of the biaxially oriented nylon film using the structure of this utility model has good puncture resistance, effectively reducing losses caused by bag bursting, which is beneficial for the storage and transportation of bagged fruit juice.