834results about How to "Dissolution inhibition" patented technology

The invention provides a positive pole material of a lithium ion battery and a preparation method of the positive pole material. Secondary particles of the positive pole material of the lithium ion battery comprise primary particles of lithium-containing multi-transition metal oxide and second-phase materials; in a process of forming the secondary particles through the primary particles, the second-phase materials form second-phase material layers which are distributed on the surfaces of the primary particles, and are diffused with the lithium-containing multi-transition metal oxide through atoms to form diffusion layers so as to enable the second-phase material layers to be combined with the primary particles. Therefore, pulverization of the secondary particles of the positive pole material of the lithium ion battery along interfaces between the primary particles can be effectively suppressed, and the sizes of the primary particles and the secondary particles can be effectively controlled. When the positive pole material is applied to the lithium ion battery, the lithium ion battery is high in specific capacity, good in cycle performance and good in safety performance.

The invention discloses high-voltage electrolyte and a lithium ion battery using the electrolyte. The invention is realized by the following technical scheme: the high-voltage electrolyte comprises a non-aqueous solvent, lithium salt and an additive, wherein the non-aqueous solvent is a carboxylic ester compound which accounts for 1-40% by mass of the high-voltage electrolyte; the additive is any one or more of lithium bis(oxalate)borate (Li BOB), fluoroethylene carbonate (FEC) and ethylene glycol bis(propionitrile) ether. The high-voltage electrolyte contains carboxylic ester solvents capable of improving an electrode / electrolyte interface, and through optimized combination of the carboxylic ester solvents, Li BOB, FEC, ethylene glycol bis(propionitrile) ether and other various additives, the good cycle performance of a high-voltage battery can be ensured, meanwhile, the high-temperature storage performance of the high-voltage battery can be effectively improved, and gas generation of the battery under high-voltage high-temperature storage condition can be obviously inhibited.

An enteric micropill (microsoftgel) of Duluoxiting and its preparing process are disclosed. Said micropill is composed of an empty core pill and a coated external layer consisting of a principal medicine layer, an isolating layer and an enteric layer. It features that its principal medicine can be quickly released only in small intestine.

The invention discloses an alkaline residue porcelain granule which has a compound package structure. The alkaline residue porcelain granule comprises a porous core layer (2) and a shell layer having blind holes (1), wherein the porous core layer comprises alkaline residue, glass powder, coal ash and saw dust and the shell layer having blind holes comprises glass powder, clay and saw dust. A method for manufacturing the alkaline residue porcelain granule comprises the steps of: uniformly mixing the materials of the porous core layer and the shell layer having blind holes by a blender, adding water into the dry materials of the porous core layer to pelletize in a pelletizing pan in order to form the pellets of the core layer, placing the pellets into a balling pan which is filled with the dry materials of the shell layer, starting the balling pan, shaking for a sufficient time, packing the materials of the shell on the core layer by rolling in order to form the porcelain granule green-pressing having the package structure, drying the porcelain granule green-pressing at 105 DEG C, pre-burning the dried porcelain granule green-pressing, rising temperature and roasting, and then naturally cooling so as to finish the firing of the alkaline residue porcelain granule. The alkaline residue porcelain granule can efficiently prevent the chloride ion in the alkaline residue from dissociating and improve the application performance of the porcelain granule which uses the alkaline residue as raw materials in the concrete.

The invention discloses a building material product based on the synergic action between alkali and CO2 and a method for preparing the same, which belongs to the field of silicate building material and product thereof. In the building material product, the fly ash the fineness of which is controlled in the range of between 400 and 600m<2> / Kg and the slag form a mixed powder material, and an aggregate and water glass are added into the mixed powder material for forming so as to obtain a blank, and the blank is subjected to natural curing and carbonization to obtain the building material product. In the invention, the industrial waste slag is used as raw materials, the high-performance silicate product is prepared under the conditions of low alkali and not doping lime and cement clinker, so that the strength level is high, no scumming phenomenon occurs on the surface of the product, the release quantities of various toxic and harmful ions are far below the threshold value; moreover, the building material product has the advantages of good durability, strong freezeproof and weather resistance capabilities, and is suitable to be the building wall material. The invention has active effect on utilizing waste slag resources, saving energy and reducing emission.

The invention relates to the technical field of lithium ion batteries, in particular to a coating structure applicable to high-voltage charge-discharge and a manufacturing method of the coating structure. A first metal oxide layer and a second metal oxide layer coat the surface of a cathode material layer, the first metal oxide layer coats the surface of the cathode material layer, the second metal oxide layer coats the outer surface of the first metal oxide layer, and the weight of the first metal oxide layer occupies 40 to 70 percent of the total weight of the first metal oxide layer and the second metal oxide layer. The coating structure contains active substances, so the first charge-discharge efficiency of a material is improved; by a surface ceramic oxide layer, corrosion of hydrogen fluoride (HF), release of metal ions and extraction of active oxygen are well inhibited; and a lithium ion secondary battery with the structure is applicable to charge-discharge at high voltage of more than 4.30 V, high in energy density, high in cycle performance and high in safety performance, and high-temperature storage performance is greatly improved.

The invention relates to a medical nano-fiber sponge material, of which the porosity is 90-98 percent and the diameter of a nano-fiber is 50-1,000 nanometers. The medical nano-fiber sponge material consists of the following components in percentage by mass: 0.5-8.5 percent of bioactive glass fine particles, 65-88 percent of gelatin, 0.2-5.0 percent of hyaluronic acid, 0.2-5.0 percent of chitosan and the balance of water. A preparation method of the medical nano-fiber sponge material comprises the following steps of: adding bioactive glass fine particles and ethanol into a gelatin aqueous solution, and stirring uniformly; performing low-temperature phase separation and freeze drying to obtain nano-fiber sponge obtained by compounding gelatin and bioactive glass fine particles; and performing soaking, refrigerating and freeze drying with a hyaluronic acid solution and a chitosan solution in sequence under a negative pressure condition to obtain a porous composite sponge material in which nano-fibers are crosslinked and coated statically with hyaluronic acid and chitosan. The nano-fiber sponge has excellent bioactivity, bacteriostasis and mechanical property, and can be widely applied in the fields of regenerative repair of various skin wounds and skin tissue engineering.

The invention discloses high voltage electrolyte considering high and low temperature performance and a lithium ion battery using the electrolyte. The high voltage electrolyte comprises a non-aqueous organic solvent, an electrolyte lithium salt, an ether nitrile compound and a low impedance additive, wherein the non-aqueous organic solvent comprises a carbonate solvent and a linear carboxylic acid ester solvent with a wide liquid range; the electrolyte lithium salt is a combination of lithium hexafluorophate and lithium triflurosulfimide according to a molar ratio of 0.01-0.5; and the low impedance additive is a cyclic sulfate compound. The linear carboxylic acid ester solvent for perfecting the electrode / electrolyte interface is contained in the high voltage electrolyte, by means of the optimized combination of the ether nitrile compound, the lithium triflurosulfimide and the cyclic sulfate compound and other additives, a high voltage battery can be guaranteed to have excellent circulation performance, and meanwhile, the excellent high and low temperature performance of the high voltage battery of storage for 18 h in a full charge state at 85 DEG C and no lithium separation in the full charge state at 0 DEG C is considered.

The present invention provides a modified lithium manganese nickel-based multiple oxide useful as a positive electrode active material of a lithium secondary battery, its production method, a lithium secondary battery positive electrode active material and a lithium secondary battery excellent in cycle characteristics and coulomb efficiencies.This modified lithium manganese nickel-based multiple oxide is characterized in that the surface of a lithium manganese nickel-based multiple oxide expressed by formula (1): LixMn1.5Ni0.5O4-w(0 H01M 4 / 58 H01M 4 / 48 H01M 4 / 04 C01D 15 / 00 C01G 1 / 02 C01G 45 / 00 C01G 53 / 00 H01M 10 / 40 4 19 2 2005 / 7 / 22 1725534 2006 / 1 / 25 100499222 2009 / 6 / 10 2009 / 6 / 10 2009 / 6 / 10 Nippon Chemical Industry Co., Ltd. Japan Ota Yokuni Komekawa Fumihiro long chun di wanjie 11322 Japan 2004 / 7 / 22 2004-213943

The invention discloses an electrolyte for lithium ion batteries, the electrolyte includes an organic solvent, a lithium salt and an additive, the additive is an additive (I), or a combination of the additive (I) and an additive (II) or an additive (III), the additive (I) is selected from tetramethyltetravinylcyclotetra-siloxane, the additive (II) is vinylene carbonate, and the additive (III) is halogenated ethylene carbonate. Because the electrolyte contains the tetramethyltetravinylcyclotetra-siloxane, during battery formation, a stable high-temperature-resistant passive membrane can be formed on positive pole surface, and can effectively restrain dissolving out of positive pole metal ions, and a more superior SEI (solid electrolyte interface) membrane is formed by a synergistic effect of a negative pole and other membrane additives so as to slowing the battery capacity decay in the charge and discharge processes and ensure the batteries have excellent cycle performances.

The invention relates to a composite type mercury ion adsorbent and a preparation method thereof. The adsorbent consists of chitosan, polyvinyl alcohol and clay. A polyvinyl alcohol macromolecular chain and a chitosan macromolecular chain are penetrated and wound mutually by high-speed stirring, so that the inorganic clay is dispersed fully; and the release of the chitosan and the polyvinyl alcohol in the process of using the adsorbent is avoided effectively by a method of combining cross linking agent cross linking and freezing crossing linking of glutaraldehyde. The adsorbent has high adsorption capacity and high adsorptive selectivity on Hg(II) ions, hardly adsorbs Cd(II) and Pb(II) ions, and adsorbs a small amount of Cu(II) ions, and can be recycled, and adsorbability of the adsorbentis slightly influenced by the pH value of a solution. The integral preparation process is performed in an aqueous solution, the preparation method is simple and convenient, low in energy consumption,low in production cost, environment-friendly, and easy to industrialize, and special process equipment is avoided.

A high-voltage electrolyte for a lithium ion battery and a lithium ion battery using the electrolyte are disclosed. The high-voltage electrolyte for the lithium ion battery comprises lithium salt, anorganic solvent and an additive. Wherein the organic solvent comprises one or more of a chain carbonate esters, cyclic carbonate esters, carboxylic esters, silicon-substituted organic solvents, wherein the additive comprises a polynitrile compound, and the preparation method of the lithium ion battery comprises injecting the high-voltage electrolyte for the lithium ion battery into a sufficientlydried lithium cobalt oxide / graphite soft-clad battery of 4.45 V, carrying out the steps of shelving at 45 DEG C, high-temperature clamping formation and secondary sealing. The high-voltage electrolytefor lithium ion battery of the present invention can effectively inhibit metal dissolution, reduce decomposition gas production of the electrolyte, protect the positive electrode, improve high-temperature cycling performance and high-temperature storage performance of the battery, reduce the increase of impedance, and improve low-temperature performance of the lithium ion battery.

The invention discloses a leadless fritted glaze, which comprises the following parts: 35.0-60.0%SiO2, 14.0-18.0%Al2O3, 3.0-10.0%CaO, 0.0-5.0%MgO, 5.0-10.0%K2O, 2.0-5.0%Na2O, 5.0-10.0%ZnO, 4.0-12.0%B2O3, 1.0-5.0%SrO, 0.0-1.0 %Li2O, 0.0-8.0%BaO and 5.0-9.0%ZrO2. The invention solves masking problem for magnesium ceramic glaze surface, which prevents environmental pollution due to overcoming to flow lead and cadmium.

The invention discloses an electrolyte and a lithium-ion battery using the same. The electrolyte comprises a non-aqueous solvent, a lithium salt and additives, wherein the additives comprise vinylenecarbonate, vinylethylene carbonate and fluoroethylene carbonate, and further comprises sulfonate and / or sulfate compounds containing silane functional groups, wherein the alkyl groups in the silane functional groups are independently selected from alkanes or olefins of which the number of carbon atoms is 1-3, or the alkanes or olefins of which the number of halogen-substituted carbon atoms is 1-3.The sulfonate or sulfate compounds can generate a dense and tough passivation film on the surface of a positive electrode material, effectively suppress the oxidation reaction in the system, and playa positive electrode protection role. And meanwhile, the compounds can synergize with other additives to form a dense and stable SEI film on the surface of a negative electrode, effectively prevent the reduction reaction of the electrolyte on the surface of the negative electrode and the deposition of transition metal, improve the interface between the negative electrode and the electrolyte, slowdown the secondary reaction of the electrode interface in a storage or circulation process, and further improve the battery performance.

The invention discloses a method for preparing a heterogeneous-phase Fenton catalyst and an application thereof, which belong to the fields of waste comprehensive utilization and water treatment. The method comprises the following steps: cleaning waste iron filings and biogas residue, drying the materials, crushing the materials, doping and dipping the materials, activating the materials at high temperature, pickling a sample and screening the sample to obtain the heterogeneous-phase Fenton catalyst. The method of the catalyst has the advantages of simple and easy operation, and saved preparation cost, effectively solves the resource utilization problem of waste iron filings and biogas residue, which belongs to the preparation technology of the sustainable development catalyst. The catalyst is used for processing difficultly-degraded waste water while being used for catalysis of Fenton, the pH value is not required to be adjusted, the pollutant removal effect is good, secondary pollution of iron filings and metal ions cannot be generated, the catalyst activity is not obviously changed through continuous operation with more than 600 hours, the catalyst has stable catalysis performance and good application performance, and is suitable for industrial popularization and application.

The invention belongs to an inorganic chemical synthesis method, and particularly relates to a synthesis method of a metal complex, i.e. polyoxometallate hybridized compound which can be taken as a photocatalyst. A metal organic-inorganic compound is synthesized by taking a Keggin monosubstituted heteropolyanion or reduced heteropolyanion as a catalytically active substance and taking a transition metal complex as a fixed framework at certain temperature and under certain pH condition in an enclosed system. Due to the adoption of the prepared compound serving as a photocatalyst, the green decoloring rate of an industrial dye medium can reach 98 percent. The photocatalyst has slightly solubility in water, so that the photocatalyst can be separated conveniently and used repeatedly and has important meaning and potential application prospect during the treatment of industrial dye waste water.

The invention discloses a non-aqueous electrolyte solution for a high-voltage lithium ion secondary battery. The non-aqueous electrolyte solution comprises a non-aqueous solvent, a lithium salt dissolved in the non-aqueous solvent and additives, wherein the non-aqueous solvent comprises 1-15mass% of fluorobenzene in the electrolyte; and the additives comprise fluoroethylene carbonate (FEC) and a tri-nitrile material. Due to the non-aqueous electrolyte solution for the high-voltage lithium ion secondary battery, the high-voltage lithium ion secondary battery can obtain excellent cycling performance and high-temperature performance.

The invention provides a frame plastic material used for liquid crystal displayer with polymer stabilized vertical alignment. The frame plastic material at least contains the following constituents by weight percent: 20%-60% of epoxy resin, 5%-50% of a hardening agent, 20%-60% of methacrylate resin or acrylate resin, 0.1%-1% of a photoinitiator, 5%-35% of filler and 0.05%-5% of a silane coupling agent, wherein the molecular weight of the methacrylate resin or the acrylate resin is not less than 500. The invention correspondingly provides a liquid crystal display panel and a liquid crystal displayer which use the frame plastic material. By the implementation of the frame plastic material, the liquid crystal panel and the liquid crystal displayer, the methacrylate resin or the acrylate resin can be prevented from being dissolved out by a liquid crystal medium, sequentially, the formation of oversize bump particles near the frame is avoided, and the light leakage phenomenon near the frame is reduced.

The invention discloses a silicon-based cathode high-voltage lithium ion battery which comprises a negative pole, positive pole, a diaphragm arranged between the negative pole and the positive pole and a nonaqueous electrolyte. An active ingredient of the negative pole is lithium transition metal oxide, an active ingredient of the positive pole is a substance based on Si, the diaphragm is a ceramic diaphragm, the nonaqueous electrolyte comprises a nonaqueous organic solvent, lithium salt and additives, and the additives include fluoroethylene carbonate (FEC), trifluoromethanesulfonic acid (Li SO3F3) and a dinitrile compound. Compared with the prior art, the silicon-based cathode high-voltage lithium ion battery has the advantages that due to synergistic effect generated by combined use of the three additives, an SEI film formed on the surface of an electrode is more stable and compact, and physical and chemical structural stability of the surface of a silicon-carbon cathode is improved, so that a silicon-carbon cathode battery has high high-temperature storage performance and circulating performance.

The invention provides a low-energy incineration fly ash innocent treatment method. The low-energy incineration fly ash innocent treatment method and device are provided for solving the problems that an existing incineration fly ash treatment technology is high in cost, true removal of heavy metal cannot be achieved through stabilizing treatment, Dioxin heat treatment energy consumption is high, and treatment is not complete. Fly ash is subject to desalting, heavy metal removal and Dioxin removal in sequence, a one-valent saline solution with very high purity is obtained, and heavy metal sediment and building materials without contaminant can be subject to resource utilization.

The invention discloses a nitrogen-phosphorus-sulfur co-doped porous carbon loaded metal phosphide nano composite material as well as a preparation method and application thereof. The preparation method of the material comprises the following steps: S1, uniformly mixing a metal salt, a carbon source compound and a swelling agent, and pyrolyzing in an inert gas atmosphere to obtain M-g-C3N4; S2, dispersing the M-g-C3N4 in a solvent to obtain a suspension A, then dropwise adding a mixed solution B in which phosphonitrilic chloride trimer and 4,4-dihydroxy diphenyl sulfone are dissolved into thesuspension A, and carrying out a mixing reaction; dropwise adding an alkaline auxiliary agent, uniformly mixing and reacting, and after the reaction is finished, separating to obtain M-g-C3N4@PZS; andS3, performing high-temperature pyrolysis on the M-g-C3N4@PZS in an inert gas atmosphere to obtain the nitrogen-phosphorus-sulfur co-doped porous carbon loaded metal phosphide nano composite materialMPx-NPS-C. The material is simple to prepare and high in general applicability; and the prepared material shows excellent performance in catalytically activating H2O2, PMS and PS to degrade complex organic compounds, and the application of the metal phosphide material in advanced oxidation water treatment is broadened.

The disclosed electrode piece of LiMn2O4 is modified by polymer, which contains functional group of possessing complexation capability with Mn ion. The electrode piece solves issue of difficulties for cladding oxide and thin grains in LiMn2O4 material modified by conductive polymer as well as issue of easy dropping-out clad caused by regrinding. Since effects of complexation and valence bond between polar group of polymer and Mn ions at surfaces of LiMn2O4 grains, oxygenolysis ability of Mn4+ ions for electrolyte and disproportionation degree happened in Mn3+ ions are reduced so as to prevent digestion and migration of lithium ions and increase cyclical stability in high temperature of lithium cell by using LiMn2O4 as positive pole. Features of preparing technique are: simple, feasible and value of industrialization.

The invention provides a positive plate and a lithium ion battery comprising the positive plate. The positive plate comprises a positive current collector, a first positive active material layer and asecond positive active material layer, wherein the first positive active material layer is arranged on the first surface of the positive current collector, and the second positive active material layer is arranged on the surface of the first positive active material layer; the first positive electrode active material layer comprises a first positive electrode active material, the second positiveelectrode active material layer comprises a second positive electrode active material, the first positive electrode active material is a positive electrode active material doped and / or coated with anMg element and an Al element, and the second positive electrode active material is a positive electrode active material doped and / or coated with an Al element. According to the positive plate, on theone hand, the high-temperature resistance and high-voltage resistance of positive active material particles on the surface of the positive plate can be ensured; on the other hand, the internal resistance of the positive plate is reduced, so the polarization in a quick charging process is reduced, and the quick charging cycle performance of the lithium ion battery is improved.

The invention provides a method for selectively leaching voluble metal in copper refinery cinder, which comprises the steps of crushing, acid fusion, size mixing and ageing, and the concrete steps are as follows: crushing and sieving the copper refinery cinder, and adding an oxidizer in slag; then stirring and leaching the mixture with 0.5-1.5 mol / L dilute sulphuric acid; after leaching, adding a size mixing agent which is calvital emulsion to neutralize excessive acid in the neutralization reaction; controlling the pH value of the reaction end point to 1.6-2.3; ageing the leaching agent; and carrying out filtering and washing to obtain filtrate containing the leached valuable metal. The method can effectively leach out copper, cobalt and zinc, inhibit the dissolution of silicon and ferrum to the maximum extent and obtain filter residue with favorable filtering performance. The method has simple and convenient size mixing scheme, less equipment investment, low raw material and small environment pollution, changes copper smelting waste residue into developable resources and has huge environment and economic benefits.

The invention discloses an admixture for vegetation-form ecological concrete and a compounding method thereof, which relate to the technical field of cement concrete admixtures. The admixture is compounded by, by weight, calcium carbonate 5-10 parts, silica powder 40-50 parts, lignosulfonic acid 5-8 parts, sodium nitrite early strength agent 1-3 parts, hydroxy carboxylic acid high-efficiency water reducing agent 1-3 parts, polyacrylamide water-retaining agent 0.3-0.4 part and dodecyl sodium sulfate air entraining agent 0.01-0.02 part. The admixture compounded by the components is added into the vegetation-form ecological concrete so that the admixture can improve the mechanical strength and durability of the concrete, controls and ensures water permeability, porosity, homogeneity and the like of the concrete, and improves chemical resistance, potential of hydrogen, biocompatibility and other functions of the inside and the surface of the concrete.

A method comprises the following steps: Step 1, mixing chromium-contaminated soil and lime sulphur and uniformly stirring to carry out a reaction so as to reduce the content of hexavalent chromium in the chromium-contaminated soil to less than 200mg / kg to obtain restored soil, wherein the mass ratio of hexavalent chromium in the chromium-contaminated soil to lime sulphur is 1:1-5; and Step 2, adding an aqueous solution of ethyl lactate into the stored soil obtained from the Step 1, uniformly stirring, culturing for 50 days or more so as to obtain restored soil, wherein 10-200 ml of the aqueous solution of ethyl lactate is added into 1 kg of the restored soil; and mass concentration of the aqueous solution of ethyl lactate is 1%. The restoration method has low cost and is environmentally friendly. By the restoration method, defects that technologies such as a traditional chemical reduction method, a chemical cleaning method and the like have high cost and are easy to produce secondary pollution are overcome.

The invention discloses a lithium-ion battery electrolyte applicable to a high nickel positive electrode material and a silicon-carbon negative electrode material and a preparation method thereof, andbelongs to the technical field of lithium-ion battery electrolytes. Main points of the technical scheme of the invention are that the lithium-ion battery electrolyte is composed of an organic solvent, lithium salt and an additive, the organic solvent is composed of a carbonic ester solvent, the lithium salt is composed of lithium hexafluorophosphate LiPF6 and lithium difluorooxalate borate LiDFOB, and the additive is composed of N,N'-sulfonyldiimidazole SDI, fluoroethylene carbonate FEC and tris(trimethylsilyl) phosphite TMSPi. N,N'-sulfonyldiimidazole SDI and fluoroethylene carbonate FEC form a good SEI film at the negative electrode in the first charging and discharging process of a lithium-ion battery, so that the capacity, cycle performance and high temperature laying performance of the battery are improved. N,N'-sulfonyldiimidazole SDI and tris(trimethylsilyl) phosphite TMSPi form a dense passivation layer at the positive electrode, so that the dissolution of transition metal inthe positive electrode material is prevented, and the cyclic stability of the positive electrode material is improved.

A resin composition in which an inorganic-type ultraviolet absorber stand dispersed in a transparent thermoplastic resin, and the ultraviolet absorber has been surface-treated with a surface treating agent selected from a silane coupling agent, a titanium coupling agent and so forth which have an alkoxyl group or a hydroxyl group and an organofunctional group, where the mixing ratio X of the surface treating agent to the inorganic-type ultraviolet absorber is set within the range of 0.05 C08K 9 / 06 C08K 3 / 22 C08L 33 / 00 C08L 69 / 00 C08L 27 / 06 C08L 25 / 06 C08L 81 / 06 C08L 67 / 00 C08L 23 / 00 B32B 27 / 00 0 16 1 2005 / 8 / 19 1746209 2006 / 3 / 15 000000000 Sumitomo Metal Mining Co. Japan Fujita Kenichi gao longxin wang ying 72003 Japan 2004 / 9 / 8 2004-260843