619results about How to "Easy to achieve large-scale industrial production" patented technology

The invention discloses a high strength glass fiber composition which comprises the components with the weight percentage: 58-65% of SiO2, 14-20% of Al2O3, 15-25% of CaO+MgO, 0.05-1% of K2O+Na2O, 0.05-1% of Fe2O3 and 0.1-2% of CeO2; wherein, the proportional relation of the components is that CaO/MgO is more than 0.7 and less than 2.2. By preference and combination of the components, the high strength glass fiber composition not only can fully utilize rich raw mineral materials of China, but also can reduce mold temperature, liquidus temperature and clarification temperature and has lower total cost and easy large scale commercial process under the premise of ensuring the high strength of glass fiber.

The invention discloses an efficient in-situ preparation method of a graphene reinforced copper-based composite material, and relates to a method for preparing a graphene reinforced copper-based composite material and the method can be used for solving the problems of poor uniform dispersion, poor structure integrity of grapheme and complex process in the existing preparation method of the graphene reinforced copper-based composite material. The efficient in-situ preparation method of the graphene reinforced copper-based composite material comprises the following steps: putting copper powder in a plasma reinforced chemical vapor deposition vacuum device, introducing hydrogen, preserving heat at high temperature, then introducing argon and carbon source gas, depositing, stopping introducing the carbon source gas after ending the deposition, and finally, cooling below the room temperature to obtain grapheme/copper composite powder, and then primarily pressing, sintering and secondarily pressing the grapheme/copper composite powder to obtain the graphene reinforced copper-based composite material. The method is an efficient in-situ preparation method of a graphene reinforced copper-based composite material.

The invention discloses a composition for preparing high-performance glass fiber by tank furnace production. The composition contains the following components in percentage by weight: 57.5 to 62.5 percent of SiO2, 14.5 to 17.5 percent of Al2O3, 13.5 to 17.5 percent of CaO, 16.5 to 8.5 percent of MgO, 0.05 to 0.6 percent of Li2O, 0.1 to 2 percent of B2O3, 0.1 to 2 percent of TiO2, 0.1 to 2 percent of Na2O, 0.1 to 1 percent of K2O, and 0.1 to 1 percent of Fe2O3, wherein the ratio of (CaO+MgO) to the MgO is more than 3, and the content of at least one of Li2O, B2O3 and TiO2 is over 0.5 percent. The composition for preparing the high-performance glass fiber makes the melting, clarification and fiber forming performance of the glass close to boron-free E glass on the basis of maintaining high mechanical properties of the glass fiber; and the composition is easy for large-scale industrialized production of tank furnace method, and has the manufacturing cost close to that of the E glass.

The invention discloses a preparation method of a graphene/lithium titanate composite anode material, which comprises the following steps: compounding compounds serving as a lithium source and a titanium source and graphene oxide through a liquid-phase method and reducing graphene oxide of the compound in inert gas mixed with reducing gas into graphene so as to obtain the graphene/lithium titanate composite anode material. The method has the characteristic of realizing uniform distribution of graphene in lithium titanate through an in-situ compounding technique. Under the same conditions, the discharge time of a hybrid capacitor which respectively takes the graphene/lithium titanate composite anode material and activated carbon as the anode and cathode is obviously greater than that of an electric double-layer capacitor which takes activated carbon as an electrode and that of a hybrid capacitor which respectively takes lithium titanate and activated carbon as the anode and cathode. The lithium titanate phase purity of a hybrid supercapacitor and lithium ion battery composite anode materials prepared by the method disclosed by the invention is higher. Furthermore, the preparation method further has the characteristic of easily realizing the large-scale industrial production.

The invention provides a novel carbon porous electrode preparing method. According to the method, a simple preparing technology is realized while the excellent performance of a carbon porous electrode is guaranteed. The carbon porous electrode preparing method comprises the steps that the surface of a current collector is coated with an electrode material containing carbon materials, binders and conductive agents, drying is conducted, and then an electrode plate in a specified thickness is formed; carbonizing treatment is conducted on the electrode plate at a temperature higher than or equal to 400 DEG C in an inert atmosphere, and then the carbon porous electrode is formed. By the adoption of the method, the obtained carbon porous electrode is better is conductive performance, resistance among carbon granules is reduced, ohmic drop on the carbon electrode in usage is reduced, actual working performance of the electrode is improved, the structural strength of the obtained carbon porous electrode is high, and the effective reaction area of the carbon electrode material is increased.

The invention discloses a composite metallic-oxide-cladded lithium nickel cobalt manganese oxide anode material and a preparation method thereof. One metallic element in the composite metallic oxide in the anode material is Al of which the mass is 0.02%-0.92% of that of the lithium nickel cobalt manganese oxide; and the other metallic element in the composite metallic oxide in the anode material is one selected from transition metal Co or Zn, and the mass of the other metallic element is 0.2%-4.0% of that of the lithium nickel cobalt manganese oxide. The composite metallic-oxide-cladded lithium nickel cobalt manganese oxide anode material can be used to exert the respective advantages of the two metallic oxides and the synergy effect between the two metallic oxides sufficiently, thus improving the electrochemical cycle performance and the specific discharge capacity of the anode material under the condition of higher charge cut-off voltage obviously. The preparation method comprises the following steps: forming a hydrotalcite precursor layer on the surface of the lithium nickel cobalt manganese oxide firstly; and roasting to obtain the composite metallic-oxide-cladded lithium nickel cobalt manganese oxide anode material, thus ensuring the uniform distribution of two kinds of metallic ions in the hydrotalcite precursor and the oxide cladding layer of the final product, thereby exerting the best cladding effect.

The invention discloses a method for preparing a lignin-based environment-friendly phenolic resin adhesive. The method comprises the following steps: 1, carrying out quantitative analysis on hydroxyl of a lignin material by using a quantitative phosphorus spectrum of nuclear magnetic resonance technology, and obtaining the quantity of active site points in unit mass of lignin material when reacting with formaldehyde by calculating the quantity of phenolic hydroxyl groups and alcoholic hydroxyl groups; 2, mixing the lignin material with phenol to form a material mixture, wherein the mass ratio of the lignin material to the phenol is (1:9)-(8:2) in the mixing process; 3, calculating the gross of formaldehyde; 4, mixing the material mixture obtained in the step 2 with formaldehyde and aqueous alkali for reaction, so as to prepare the lignin-based environment-friendly phenolic resin adhesive. The biomass refined by-product lignin is utilized at high value on the basis that the problems of expensive product and formaldehyde pollution of the traditional lignin-based phenolic resin adhesive are solved, and the method has great economic significance and social significance.

The invention discloses a phosphorus/carbon composite negative electrode material of a lithium ion battery and a preparation method thereof, which belong to the technical field of electrode materials of the lithium ion batteries and preparation thereof. In the composite material, the mass ratio of P to C is 8/2-4/6, and the composite material has an amorphous structure containing P-C chemical bonds. A phosphorus source material and a carbon source material are mixed according to the mass ratio of the P to the C of 8/2-4/6; then the mixed material is added into a stainless steel tank; stainless steel balls are added into the mixed material according to the mass ratio of the mixed material and the stainless steel balls of 1:20-1:80; and the ball milling is performed for 5 to 30 hours under the protection of nitrogen to obtain the phosphorus/carbon composite material. The phosphorus/carbon composite material has higher reversible specific capacity and good electrochemical cycle stability; and the material has simple process and convenient operation, and is easy to realize mass industrial production.

This invention provides a spinel compound metal oxide electrode material and its preparation method, in which, the composition of the electrode material is Mfe204, M is one element or composition of any two elements in Co, Ni Cu and Fe of +2 valence transition metal elements. Taking compound metal oxide M-Fe2+-Fe3+|-LDHs as the precursor and M is one element or composition of any two elements in Co, Ni, Cu, Fe elements, the electrode material is got by baking them under a certain temperature, compared with carbon materials, said electrode material has higher mass ratio capacity and volume ratio capacity.

The invention discloses a graphene/carbon nano tube hybridized filler network enhanced rubber material and a preparation method thereof. According to the rubber material, graphene and carbon nano tubes are taken as filler, a hybridized filler network is formed in a rubber material matrix, wherein 100 parts by mass of the rubber material matrix are adopted, and 0.1-20 parts by mass of graphene and the carbon nano tubes are adopted. The rubber material is prepared according to steps as follows: oxidized graphene and the carbon nano tubes are added to water, and a hybridized suspension liquid is prepared; the prepared hybridized suspension liquid is added to an emulsion of the rubber material matrix and mixed, a demulsifier is added for demulsification, an oxidized graphene/carbon nano tube/rubber particle suspension liquid is prepared, then, a reducing agent is added for a reduction reaction, solid-liquid separation is performed after sufficient reaction, an obtained solid phase is washed and dried, and the rubber material is prepared. The graphene and the carbon nano tubes form the hybridized filler network in the rubber material and have an energy dissipation function, so that the rubber material has excellent mechanical property, fatigue resistance, crack growth resistance and conductive property.

The invention relates to a method for extracting lithium from a primary lithium-extraction solution of lithium ores. The method comprises the following steps: (a) mixing inorganic salt with the primary lithium-extraction solution, removing the precipitates to obtain secondary lithium-extraction solution; (b) carrying out nanofiltration treatment on the secondary lithium-extraction solution, separating mono-valent cation salt solution from multi-valent cation salt solution; and (c) extracting lithium salt from the mono-valent cation salt solution. Other mono-valent and multi-valent salt separation solutions can be concentrated, crystallized or precipitated to obtain the corresponding salts. The invention provides a novel technology which is used for effectively recycling lithium from the lithium ores; the material resource storage capacity is abundant, the process flow is simple and reasonable, the operation is reliable and the energy consumption is low, so that the purpose of reducing the cost and the energy consumption is achieved.

The invention provides a lithium battery hard carbon microsphere cathode material with core-shell structure and a preparation method thereof. The lithium battery hard carbon microsphere cathode material with core-shell structure is formed by starch and a graphitized layer as coating. The surface of the material is subjected to catalytic graphitization treatment to form the graphitized layer, and the inside of the material maintains the hard carbon structure. The product is made by preparing a starch-based hard carbon microsphere and performing catalytic graphitization treatment. Owing to the highly-graphitized coating layer, the first charge/discharge efficiency of the prepared carbon microsphere with core-shell structure is higher than the conventional hard carbon-based materials; and owing to the hard carbon inner structure, the capacity is higher and the magnification property is excellent.

The invention belongs to the field of lithium ion cell and specifically relates to a LiNi0.6-xCo0.2Mn0.2AlxO2-yFy positive electrode material for the lithium ion cell and a preparation method thereof. X is more than 0 and y is less than or equal to 0.05. The positive electrode material is used for overcoming the defect of poor electrochemical performance of the Ni-Co lithium manganate ternary positive electrode material. According to the invention, a minute quantity of aluminum and fluorine are doped, so that the positive electrode material for the lithium ion cell has higher specific discharge capacity and excellent cycle performance; under a room temperature environment, when the voltage scope is 2.7-4.3V and the constant current charge-discharge multiplying power is 0.5C, the specific discharge capacity of the material at the first time can reach 187.9mAh g<-1>, and after circulation for 20 times, the specific discharge capacity still can reach 192.1mAh g1 and the capacity retention ratio reaches up to 102.2%; when the voltage scope is increased to 2.7-4.5V and the constant current charge-discharge multiplying power is 0.5C, the initial specific discharge capacity of the material can reach 225.8mAh g<-1>, and after circulation for 20 times, the specific discharge capacity still can reach 190.2mAh g<-1> and the capacity retention ratio reaches up to 84.2%. The preparation technique of the material is simple and controllable, the product purity is high, the chemical uniformity is high, the crystal quality is high, the product grain is small and the size distribution is uniform.

The invention discloses graphene composite copper thick film conductive slurry. The graphene composite copper thick film conductive slurry comprises the following components in percentage by mass: 60%-80% of conductive phase, 0.5%-5% of glass phase, 15%-39.5% of organic carrier, totaling 100%. The preparation method comprises the steps of mixing the components, heating to 35-40 DEG C, and uniformly stirring. According to the graphene composite copper thick film conductive slurry disclosed by the invention, by adding graphene with an excellent conductive property, the conductive property of the slurry is improved; by bismuth oxide low-melting glass, the conductive thick film slurry has excellent electrical properties and adhesion force even when being sintered at a low temperature. The slurry has the advantages of good conductivity and small printing thickness, can be effectively applied to production of a conductive material for various products, has the advantages of simple preparation process, convenience in operation, good conductivity, uniform distribution of particle sizes and easiness in coating, and is suitable for mass production of enterprises.

The invention discloses a method for preparing lithium manganate used as a lithium ion battery anode material by using trimanganese tetroxide, comprising the following steps of: firstly, preparing the trimanganese tetroxide and the lithium salt according to the molar ratio of lithium to manganese 0.5-0.6, uniformly mixing the trimanganese tetroxide and the lithium salt to get the precursor, and then, pre-sintering the precursor; executing ball milling and spray drying after pre-sintering, and then, executing secondary sintering; finally, executing isostatic cool pressing on the products of the secondary sintering process, and crashing and classifying the products to get the lithium manganate used as the lithium ion battery anode material. The method has the advantages of being simple and practical in technical steps, low in cost, easy to realize mass industrial production, excellent in product performance, and the like.

The invention relates to a method for preparing a carbon nano tube enhanced titanium-base compound material by in-suit reaction in order to solve the problems of low uniform dispersion and low structural completeness of a carbon nano tube in the conventional method for preparing the carbon nano tube enhanced titanium-base compound material and pollution to the titanium-base material caused by reaction of a carbon group and a titanium base body. The method comprises the following steps of: adding nickel nitrate hexahydrate and TiH2 powder into an ethanol solution, stirring and evaporating to obtain Ni-TiH2 compound powder; paving the Ni-TiH2 compound powder in a quartz boat, putting the quartz boat into deposition equipment, feeding H2, raising temperature, feeding CH4, and after the deposition is finished, stopping feeding the CH4 so as to obtain carbon nano tube/TiH2 compound power; pressing the carbon nano tube/TiH2 compound power into a block body, sintering, and re-pressing to obtain the carbon nano tube enhanced titanium-base compound material. Carbon nano tubes in the compound material are uniform to disperse and cannot be aggregated; the compound material is high in purity and has a complete structure; and reaction between the titanium and the defected carbon nano tube can be avoided.

The invention belongs to the technical field of energy storage devices and relates to an organogel polymer electrolytic solution, a preparation method, application, a sodium-based dual-ion battery anda preparation method thereof. The organogel polymer electrolytic solution of the present invention comprises a solid polymer substrate and an organic electrolytic solution; wherein the solid polymersubstrate comprises an organic polymer and an inorganic additive; and the organic electrolytic solution comprises sodium salt and an organic solvent. The liquid electrolytic solution and the diaphragmin a traditional battery are replaced by the rigid-flexible organogel polymer electrolytic solution where the organic and inorganic materials coexist, thereby improving the safety of the battery under the premise of ensuring the electrochemical performance of the battery, broadening the application field of dual-ion batteries, bringing new design opportunities for energy storage devices in the field of wearable electronic devices in the future, achieving low-cost batteries without using the diaphragm and a protection circuit.

The invention provides a preparation method for a copper foil current collector. The method comprises the steps of: providing a clean copper foil, placing it in chemical vapor deposition equipment, and conducting sealing; introducing a protective gas into the equipment, exhausting air, then starting heating to a temperature of 800-1000DEG C, then starting plasma equipment, introducing a carbon-containing gas, keeping the status for 100-300min, at the end of reaction, stopping heating, turning off the plasma equipment, stopping introducing the carbon-containing gas, and performing cooling to room temperature in a protective gas atmosphere, thus obtaining the copper foil current collector with graphene growing on the surface. The preparation method for the copper foil current collector provided by the invention has a simple preparation process. The contact internal resistance between the prepared copper foil current collector with graphene growing on the surface and a battery active material is greatly reduced, so that the total internal resistance of the battery is reduced, and the power density of the battery is enhanced.