93results about How to "Easy to implement at scale" patented technology

The invention discloses a carbon-sulfur composite positive electrode material of a lithium-ion battery and a preparation method of the material. The positive electrode material comprises a shell layer and a nuclear layer, wherein the shell layer comprises a conducting polymer layer; the nuclear layer comprises a sulfur layer; and a nano conducting material is uniformly distributed in the sulfur layer and comprises more than one dotted nano conducting particles and more than one linear and / or piece-shaped conducting nano materials. The preparation process comprises the following steps of: (1) after uniformly mixing the nano conducting material and the sublimed sulfur, carrying out insulating treatment in closed environments with the temperatures of being 120-300 DEG C and 300-500 DEG C in sequence, and then naturally cooling to obtain the powder; and (2) carrying out ball-milling treatment on the powder obtained by the step (1), wrapping the powder by the conducting polymer, then cleaning, and drying under the condition with the temperature of being 80-120 DEG C, thus obtaining a target product. The invention has the advantages that the service life of the sulfur positive electrode material of the lithium battery can be effectively prolonged, the cycling performance of the sulfur positive electrode material can be improved, the single carrying amount of the sulfur can be improved, and the preparation process is simple and high-efficiency, and is low in cost and easy in large-scale production.

The invention discloses the applications of a Ni / SiC catalyst to methane production through syngas conversion. Silicon carbide with favorable thermal conductivity and mechanical strength is used as a carrier of a nickel catalyst, wherein the catalyst contains 1-20 percent of nickel metal, and the preparation method is simple and practical. The catalyst can rapidly export a great number of heat generated in a methane production reaction through syngas conversion, avoid congregation of nickel catalyst particles due to partial overheat and inactivation caused by carbon deposition, have the advantages of strong abrasion resistance, high activity, strong carbon deposition resistance, and the like and can be operated at a higher airspeed under high pressure.

The invention discloses a sulfonated-graphene-based novel Ru(bpy)3<2+> nano heterogeneous catalyst and a preparation method thereof. The nano heterogeneous catalyst comprises a sulfonated graphene matrix and Ru(bpy)3<2+> groups, wherein the sulfonated graphene matrix comprises a graphene matrix and sulfonic groups distributed on the graphene matrix; the Ru(bpy)3<2+> groups are connected onto the sulfonated graphene matrix after being matched with the sulfonic groups, and the active sites of the Ru(bpy)3<2+> groups are dispersed on a two-dimensional plane of the graphene matrix. The preparation process comprises the following steps: carrying out an ion exchange reaction on sulfonated reduction graphene and Ru(bpy)3<2+> to form the nano heterogeneous catalyst. The nano heterogeneous catalyst is high in chemical and heat stability, has catalytic active sites of Ru(bpy)3<2+> with visible-light activity, is high in catalytic activity, can be well dispersed in a reaction system, is easy to recover, is suitable for repeated use, and can be widely applied to a light-induced electron transfer reaction; simultaneously, the preparation process is simple, the raw material is low in cost and easily available, the cost is low and the need of large-scale production is met.

The invention discloses a graphene dispersant, which comprises aniline oligomer with electro-activity. The aniline oligomer can form [pi]-[pi] complex with graphene. The invention also discloses applications of the graphene dispersant, such as dispersing method and dispersion based on the graphene dispersant, and the like. Conductive aniline oligomer and / or derivatives thereof, which can be easily synthesized and have a low cost, are taken as the graphene dispersant; the dispersant and graphene or other nano carbon materials are simply mixed in a dispersion medium, the dispersion degree, dispersion stability and re-dispersion performance of nano carbon material in the dispersion medium are largely improved; moreover, the physical and chemical properties of the carbon materials are not damaged, the operation is simple, and the graphene dispersant is suitable for large scale implementation.

The invention relates to a preparation method of a hexagonal boron nitride / polymer blocky composite material with high filling amount, wherein the method comprises the steps: step 1, adding hexagonalboron nitride and a polymer matrix into a mortar, grinding uniformly, and mixing to obtain a hexagonal boron nitride-polymer matrix mixture, wherein the polymer matrix is in a liquid state at normal temperature and normal pressure, and can be cured under the condition of changing temperature and / or pressure; step 2, putting the mixture obtained in the step 1 into a ball milling tank, and carryingout uniform ball milling to obtain a mixture obtained by further mixing and uniformly carrying out a reaction on hexagonal boron nitride and the polymer matrix; step 3, putting the mixture obtained inthe step 2 into a mold, and carrying out compression molding to obtain a blocky molded prototype of the polymer composite material; and step 4, polymerizing and curing the blocky forming prototype ofthe polymer composite material obtained in the step 3 to obtain the blocky material of the hexagonal boron nitride / polymer composite material with high filling amount. The composite material has ultrahigh mechanical properties and huge thermal management application potential.

The invention discloses a preparation method of a large-area gold nanorod aligned and ordered array. The preparation method comprises the following steps: modifying a first high polymer material in a selected area on the surface of gold nanorods; modifying a second high polymer material which is compatible with the first high polymer material on the substrate surface; utilizing the solvent evaporation self-assembly feature to enable the gold nanorods to be aligned and distributed on the substrate surface, so as to form the large-area gold nanorod aligned and ordered array such as a gold nanorod vertical array or a gold nanorod tiled array. The invention further discloses the large-area gold nanorod aligned and ordered array and application thereof. The preparation method, disclosed by the invention, is simple and easy to implement, good in controllability, low in cost, and capable of obtaining the large-scale aligned and ordered gold nanorod array in multiple forms which can be applied to the fields such as optical electronic devices, biosensors, environment and food safety detection as a two-dimensional or three-dimensional functional material.

The invention discloses a mesoporous phenolic resin / copper nano particle heterogeneous catalyst, and a preparation method and an application of catalyst. With ordered mesoporous phenolic resin as carrier and elementary substance state copper nano particle as catalyst active component, the heterogeneous catalyst has a regular mesoporous structure, as well as has the characteristics of large specific surface area, uniform particle size distribution, even active site distribution and the like; meanwhile, the catalyst has high chemical and thermal stabilities, can be dispersed well in a reaction system, is easy to recover and recycle, and is widely applied to each elementary copper based organic catalytic reaction. Furthermore, the preparation process of the catalyst is simple, the raw materials are cheap and available, the cost is low, and no reducing agent is added during the preparation process, so that the environment-friendly effect is achieved.

The invention discloses a nylon material having ultra-strong liquidity and a preparation method thereof. As one of optimal embodiments, the preparation method comprises the steps of mixing caprolactam, diamine or diacid and other nylon precursors with an end-capping reagent, then adding a mixture into a sulfonating graphene solution, slow rising the temperature to be 100-150 DEG C, stirring the solution for more than 0.5h at low speed, continuing to rise the temperature to be reaction temperature, keeping 2-5MPa pressure for 2 to 5 hours, performing vacuum pump till viscosity stabilization and performing discharging and pelleting to obtain a target product. The preparation method has the advantages of being simple in process, low in cost, high in controllability and easy to implement in a large-scale mode, and the obtained product has good physical and chemical performance, especially has excellent tensile strength, bending strength and impact resisting strength, is high in melt index and has ultra-strong liquidity, can be widely used as a formed thin-wall product, a nylon product large in molecular weight and difficult to process and a nylon product difficult to process after being compounded with other materials.

The invention discloses a graphene dispersant, which comprises an electroactive polymer containing aniline oligomer units, and the electroactive polymer can form a π-π complex with graphene. The invention also discloses the application of the graphene dispersant, for example, provides a dispersion method, dispersion and the like based on the graphene dispersant. The present invention utilizes the conductive aniline oligomer derivatives which are easy to synthesize and low in cost as the graphene dispersant, and by simply mixing the dispersant with graphene or other nano-carbon materials in the dispersion medium, the nanometer carbon can be greatly improved. The dispersion degree, dispersion stability and redispersion performance of carbon materials in the dispersion medium will not damage the physical and chemical properties of these carbon materials, and the operation is simple, which is conducive to large-scale implementation.

The invention discloses a graphene dispersant, which comprises aniline oligomer with electro-activity. The aniline oligomer can form [pi]-[pi] complex with graphene. The invention also discloses applications of the graphene dispersant, such as dispersing method and dispersion based on the graphene dispersant, and the like. Conductive aniline oligomer and / or derivatives thereof, which can be easily synthesized and have a low cost, are taken as the graphene dispersant; the dispersant and graphene or other nano carbon materials are simply mixed in a dispersion medium, the dispersion degree, dispersion stability and re-dispersion performance of nano carbon material in the dispersion medium are largely improved; moreover, the physical and chemical properties of the carbon materials are not damaged, the operation is simple, and the graphene dispersant is suitable for large scale implementation.

The invention discloses a liquid-phase stripping method of a two-dimensional molybdenum disulfide (MoS2) nano material, and a dispersion method and application of MoS2. The molybdenum disulfide dispersant comprises a polyaniline conductive high polymer which enables molybdenum disulfide to be stably dispersed in a conventional solvent or any other dispersion medium by being combined with molybdenum disulfide under physical actions. The low-cost polyaniline conductive high polymer is used as the molybdenum disulfide dispersant, and the dispersant is simply mixed with the molybdenum disulfide in the dispersion medium, so that a simple liquid-phase stripping method can be utilized to obtain molybdenum disulfide two-dimensional nanosheets under the physical interactions between the dispersing agent and molybdenum disulfide. The liquid-phase stripping method does not damage the physical structure or chemical properties of the molybdenum disulfide, and is simple in the operational process and beneficial to large-scale implementation. The stripped molybdenum disulfide two-dimensional nanosheets have wide application prospects in the fields of semiconductors, energy sources, wear-resistant lubricating paints, composite materials and the like.

The invention discloses a method for separating a copper-soldering tin mixture and a device for achieving the method. The method comprises the following steps that soldering tin in the copper-soldering tin mixture is melted into liquid through heating while copper in the copper-soldering tin mixture is still in a solid state; and centrifugal separation is conducted to enable the liquid soldering tin to be separated from the solid copper. The device comprises a heating unit and a centrifugation unit; the centrifugation unit comprises a rotary drum; the soldering tin in the copper-soldering tin mixture is melted into liquid through the heating unit while the copper in the copper-soldering tin mixture is still in the solid state; and the liquid soldering tin is separated from the solid copper through the centrifugation unit. According to the method for separating the copper-soldering tin mixture and the device for achieving the method, through the melting point difference of the copper-soldering tin mixture, separation of the copper-soldering tin mixture is achieved for the first time, and the method for separating the copper-soldering tin mixture and the device for achieving the method have the advantages of being convenient to operate, easy to achieve a large scale, low in cost, environmentally friendly and the like; and the method for separating the copper-soldering tin mixture and the device for achieving the method contribute greatly to achieving environmental friendliness for waste household appliances and achieve resource recovery of the copper-soldering tin mixture.

The present invention relates to a method for efficiently enriching diaryl heptane compounds in Saxifrage tangutica, the method comprising the following steps: (1) Extraction: crushing the medicinal material of Saxifraga tangutica and carrying out alcohol extraction, and obtaining Tanggu S. saxifrage extract; (2) alcohol-resistant film for impurity removal: the extract of saxifrage tangutica is treated with an alcohol-resistant film, and the permeate is collected, and the permeate is dried under reduced pressure to obtain saxfrage tangutata Grass diaryl heptane compound crude sample; (3) Reverse-phase solid phase extraction column enrichment: add water to dissolve in the described saxifrage diaryl heptane compound crude sample, then pass through the reverse phase solid phase extraction column Separation, and carry out step gradient elution, collect 50% ~ 70% methanol eluate; (4) described 50% ~ 70% methanol eluate is dried under reduced pressure to obtain Saxifrage tangutata diaryl heptane compound components. The invention has simple process, easy large-scale implementation and stable and controllable quality.

The invention discloses an epoxy resin-carbon nanotube composite material and a preparation method thereof. The preparation method includes the following steps: carbon nanotubes, aniline oligomer and / or a derivative thereof are mixed in solvent, so that a carbon nanotube dispersion is obtained, the carbon nanotube dispersion and epoxy resin are uniformly mixed to form a mixture, the solvent in the mixture is then removed, and thereby an epoxy resin-carbon nanotube complex is obtained; and the epoxy resin-carbon nanotube complex and epoxy hardener are uniformly mixed. The epoxy resin-carbon nanotube composite material disclosed by the invention has excellent mechanical properties, high-temperature resistance and wear resistance, and can be used as an excellent self-lubricating polymer material, moreover, the preparation process is simple, material resources are wide, and the preparation method is favorable for large-scale implementation.

The invention relates to a method and a circuit for dynamically equalizing a battery management system. The method comprises the following steps of: 1) detecting the voltage of each single battery in each group of battery packs sequentially connected in series by using embedded control software; 2) judging the location number of the single battery which needs to be charged or discharged separately and has excessively low or high voltage by using a central processing unit (CPU); 3) giving a control command out by using the CPU, controllably gating a corresponding polarity selecting switch block to perform polarity inversion on a collection bus, controllably gating a corresponding battery selecting switch block to perform polarity matching at the same time, controlling the working direction of a bidirectional isolation transformer and connecting the single battery which needs to be charged or discharged separately and has the excessively low or high voltage to the connection bus for charging or discharging so as to realize energy transfer; and 4) repeating the steps 1) to 3) until the voltage of each single battery in each group of battery packs sequentially connected in series is in a set allowable error range so as to realize dynamic equilibrium. The number of charging and discharging devices and circuit complexity of the battery management system can be reduced remarkably.

The invention discloses a method for improving electrochemical properties of a nickelic ternary anode material. The method comprises the following steps of: (1) dissolving a soluble cobalt salt in the presence of water, a solution or a solvent; (2) diffusing the nickelic ternary anode material in a soluble cobalt salt solution and stirring; (3) dissolving a soluble lithium salt in the presence of the water, the solution or the solvent; (4) dropping a lithium salt solution into the soluble cobalt salt solution containing the nickelic ternary anode material; (5) carrying out spray drying on mixed liquid; and (6) sintering a dried mixture at a high temperature in the presence of air or oxygen, so as to obtain the anode material, which has better electrochemical rate capability and circulation property when being compared with the former untreated nickelic ternary anode material. The method provided by the invention is easy to operate, so that the scale production is easy to realize.