92results about How to "Improve gas problem" patented technology

The invention relates to the field of lithium batteries and discloses a formation method of a soft-packed lithium ion battery. The formation method comprises the following steps: charging to be in a preset non-full state by ultra-low current and standing; continuously charging till to be in a full state by low current and standing; carrying out vacuum and heat sealing on a shell and remaining a first air bag; discharging the lithium ion battery to be in a discharging cut-off voltage state; continuously charging till to be in a charging cut-off voltage state, charging till to be in a charging cut-off current state by constant voltage and standing; discharging till to be in a discharging cut-off voltage state; charging till to be in the charging cut-off voltage state by constant current, charging till the current is reduced to the charging cut-off current by the constant voltage and standing; vacuumizing, carrying out vacuum heat sealing on the shell, and shearing the first air bag and a second air bag to obtain the lithium ion battery packed in a second sealing cavity body. The formation method is beneficial to preventing the inflation problem of the lithium ion battery in the application process.

The invention discloses a synthetic method of a nitrogen-enriched carbon coated lithium titanate composite material prepared by the introduction of an ionic liquid as a carbon source. The synthetic method comprises the following steps of: 1) weighing lithium salt, titanium dioxide and the carbon source in proportion, adding alcohol, carrying out ball milling dispersion, and carrying out vacuum drying to prepare a precursor; 2) sintering the prepared precursor at the temperature of 750-950 DEG C under the protection of an inert atmosphere so as to preliminarily obtain lithium titanate with a carbon material coated on the surface; and 3) adding the ionic liquid and deionized water in proportion into the preliminarily obtained carbon-coated lithium titanate, carrying out ball milling, stirring and sintering. The lithium titanate composite material has a spherical morphology of nano-primary particle composed micrometer secondary particles, and the surface of the lithium titanate composite material is uniformly coated with a layer of nitrogen-enriched carbon material. Its electronic conductivity is not only effectively raised, but surface stability of the material is also enhanced. The obtained material has excellent rate capability and cycle performance. In addition, gas expansion problem of lithium titanate cells is effectively improved. The nitrogen-enriched carbon coated lithium titanate composite material has a wide application prospect in the field of lithium ion battery.

The invention discloses a composite porous activated carbon flue gas adsorbent which is characterized by comprising the following raw materials in parts by weight: 98-105 parts of shell activated carbon, 36-40 parts of diatomite, 2-3 parts of sodium metasilicate, 2-3 parts of rosin, 2-3 parts of VAE emulsion, 2-3 parts of polyvinyl alcohol, 1-2 parts of sodium alcohol ether sulphate, 1-2 parts of sodium citrate, 1-2 parts of gypsum residue, 2.5-3.5 parts of pulverized fuel ash, 4-5 parts of edible corn starch, 2-3 parts of lanthanum nitrate, 9-12 parts of glass fiber powder, 4-6 parts of adsorption aids and a proper amount of water. The composite porous activated carbon flue gas adsorbent disclosed by the invention is reasonable in formula, viscous matters such as polyvinyl alcohol and edible corn starch are added, the toughness and strength of the activated carbon are improved, and the service life is prolonged; and due to the addition of the adsorption aids, the adsorbent has special porosity, the contact time between gas and the adsorbent is prolonged, and the effects of inhibiting bacteria and purifying the air are achieved. Therefore, the adsorption efficiency is high, the production process is simple, and the adsorbent is suitable for industrial dry desulfurization, automobile exhaust desulfurization and daily air purification.

The invention discloses a method for preparing a slot field-effect transistor with a back-gate ZnO multi-nano wire, which belongs to the technical field of compound semiconductor materials and devices. The invention provides a method for preparing a slot field-effect transistor with back-gate ZnO multi-nano wire so as to solve the problem that the existing field effect transistor with back-gate ZnO nano wire has small working current which has large gap with practical applications; the method comprises the following steps of: growing medium, preparing a back-gate electrode, preparing a bottom source-drain electrode, fixing the ZnO nano wire primarily by using alternating current bi-directional dielectrophoresis technology, controlling the ZnO nano wire accurately by using nano controlling technology based on AFM, and preparing a top source-drain electrode. A plurality of ZnO nano wires are taken as parallel slots and suspended in the air, which can greatly improve the performance of current, transconductance, and cut-off frequency and the like of devices, and improve the performance of ultraviolet, gas and chemical sensing.

The invention discloses a preparation method of alumina coated lithium titanate. The method comprises the following steps of 1) mixing aluminum salt, lithium titanate, a first alcohol solvent and a dispersing agent to react and performing vacuum drying to obtain an aluminum salt coated lithium titanate precursor, wherein a mass ratio of lithium titanate to the first alcohol solvent is (1:0.5)-(1:4); and 2) sintering and cooling the aluminum salt coated lithium titanate precursor to obtain alumina coated lithium titanate. The aluminum salt is sufficiently and uniformly mixed with lithium titanate under the action of the first alcohol solvent and the dispersing agent, and an alumina film formed on the surface of lithium titanate is moderate in thickness, small in particle size and uniform, so that prepared alumina coated lithium titanate reduces the water absorption of lithium titanate, reduces a decomposition effect of a Ti-O bond on an electrolyte, does not react with the electrolyte under overpotential, and improves inflation of a lithium titanate battery.

The invention relates to a lithium nickel cobalt aluminate composite material and a preparation method and application thereof. The lithium nickel cobalt aluminate composite material comprises lithium nickel cobalt aluminate and a lithium iron phosphate material coating the surface of the lithium nickel cobalt aluminate, wherein lithium ferric manganese phosphate and the lithium nickel cobalt aluminate are glued together through polytetrafluoroethylene. By the lithium nickel cobalt aluminate composite material, the problem of battery bulging can be solved. The preparation method of the lithium nickel cobalt aluminate composite material comprises the following steps of spraying a polytetrafluoroethylene emulsion on the surface of lithium nickel cobalt aluminate powder, fully mixing, adding lithium iron phosphate powder and fully mixing again to obtain a mixed material; and drying the mixed material to remove moisture, and then carrying out crushing to obtain the lithium nickel cobalt aluminate composite material. By the method, secondary sintering on the material is not needed, the problem of performance reduction of the lithium nickel cobalt aluminate composite material caused by sintering is solved and application is facilitated. Furthermore, the invention further provides a positive pole piece comprising the composite material and a lithium-ion battery comprising the positive pole piece.

The invention discloses a preparation method of a nanoscale zirconium-doped lithium titanate material. Nanoscale lithium titanate is prepared by the method, and simultaneously is modified through doping zirconium. According to the preparation method, chemical components and grain sizes of the lithium titanate are effectively controlled by using hydro-thermal treatment, the temperature during subsequent treatment is greatly reduced, and grains are prevented from being agglomerated; and the preparation method is easy to implement in industry. The lithium titanate is doped with the zirconium in a preparation process, so that the specific discharge capacity of the material is increased at high magnification. Simultaneously, the gas expansion problem existing in the charge-discharge process of lithium titanate batteries is solved to a certain extent. The material prepared by the method has high magnification and high specific capacity and can be applied to the batteries needed for various portable electronic equipment and various electric vehicles.

The invention discloses a real-time regulated downhole gas-liquid separation combination lift system capable of being suspended. The system includes an oil tube connected to a suspended three-way assembly, a jet-pump lift system is arranged in the suspended three-way assembly, an electric-pump lift system assembly is suspended at a first port of the lower end of the suspended three-way assembly, and a gas-liquid separation system assembly is connected to a second port of the lower end of the suspended three-way assembly through a gas-collection oil tube; the system further includes a flow control valve and a visual control device; the visual control device is connected with the electric-pump lift system assembly, the gas-liquid separation system assembly and the flow control valve. By the adoption of the electric-pump and jet-pump combined lift system, no external high-pressure power liquid is needed, high-pressure liquid-rich flow which flows through the electric pump serves as power liquid to suck separated gas-rich flow, and then the separated gas-rich flow is lifted to a wellhead, so that downhole gas-liquid separated exploitation is achieved. By the adoption of the real-time regulated downhole gas-liquid separation combination lift system capable of being suspended, the application of a conventional electric pump in an oil well with a high gas-liquid ratio is achieved, and the application range of the conventional electric pump in the oil well with the high gas-liquid ratio is broadened.

The invention discloses a lithium titanate negative electrode material. The lithium titanate negative electrode material comprises lithium titanate particles, wherein the surfaces of the lithium titanate particles are wrapped with hydrophobic radicals; hydrophobic radicals and the lithium titanate particles are in covalent bond connection. According to the lithium titanate with surface hydrophobicity, the catalytic activity of the lithium titanate is reduced, thus the swelling problem of a lithium titanate battery is obviously improved, and the high temperature performance of the lithium titanate battery is improved. Moreover, the invention further discloses a method for hydrophobically treating the surfaces of the lithium titanate particles, wherein the surface hydrophobization of lithium titanate is effectively realized. In addition, the invention further discloses the lithium ion battery using the lithium titanate negative electrode material.

The invention discloses a novel three-dimensional planting method adopted in a rice field. The method comprises the steps of A, conditioning the rice field; B, breeding aquatic animals and plants; C, planting rice and another crop; D, conducting fish stocking; E, conducting daily management; F; harvesting the crops and fish. According to the three-dimensional breeding method, through the reasonable matching between animal breeding and plant breeding, the yield and quality of rice are improved, the occurrence rate of pest and disease damage is reduced, the usage of chemical pesticides is reduced, natural resources are fully utilized, the environment is protected, income can be obtained in multiple ways, and the yield per mu is increased greatly.

The invention relates to electrolyte solution of a lithium manganese battery, in particular to electrolyte solution capable of improving air expansion of a soft roll lithium manganese battery. The electrolyte solution consists of three components, namely (1) lithium salt, (2) a carbonic ester and / or ether organic solvent and (3) 0.01 to 20 mass percent of additive, wherein the molar concentration of the lithium salt in the electrolyte solution is 0.01 to 2 moles / liter; and the additive is a sulfinyl-containing and / or sulfonyl-containing compound. The additive compound in the electrolyte solution is decomposed before the organic solvent of the electrolyte solution to form a passivation layer on the surface of an electrode, so that gas generation due to the decomposition of the organic solvent of the electrolyte solution is restrained, and the aim of improving the air expansion of the soft roll lithium manganese battery is fulfilled.

The invention discloses activated carbon diatomite particles with well-developed pores and low cost. The activated carbon diatomite particles are characterized by being prepared from the following raw materials in parts by weight: 95-105 parts of fruit shell activated carbon, 30-35 parts of diatomite, 18-22 parts of traditional Chinese medicine residues, 22-26 parts of tung seed shells, 6-9 parts of kaoline, 1-2 parts of a silane coupling agent kh560, 3-4 parts of sodium sulfate, 4-6 parts of limestone powder, 2.5-3.5 parts of vitrified microspheres, 3.5-5 parts of silicon micro-powder, 3-5 parts of clay, 3-5 parts of active aluminum oxide, 4-6 parts of an absorbent additive and an appropriate amount of water. According to the method for preparing the activated carbon diatomite particles with the well-developed pores and the low cost, the materials such as the traditional Chinese medicine residues, and the tung seed shells are reused, dried, crushed and then added into the activated carbon and the diatomite, and the particles have sufficient sources of raw materials, the well-developed pores, the high absorption ability and the excellent property; the absorbent additive gives the special porosity of the particles and increases the contact time between gas and each particle; the particles prepared according to the method have the good desulfurization dedusting effect and the high porosity, and is low in cost and simple in production process, and therefore, the operation cost of dry desulfurization is greatly reduced.

The present invention relates to the field of medicinal plant cultivation, in particular to a Polygonum multiflorum planting method. The method comprises the concrete steps of planting area selection, ridge and soil preparation, seedling selection, transplanting and engrafting, water and fertilizer management, frame setting and branch picking, pest and disease control, harvesting and drying. The planting method provided by the present invention is easy in operation, low in cost and high in survival rate of seedlings; different medicinal liquids are used for controlling different pests and different diseases specifically on the aspect of Polygonum multiflorum disease and pest control; harms of these pests and diseases to the Polygonum multiflorum can be effectively controlled; the occurring rate of the pests and diseases in an overall growth stage is low; and according to the method provided by the present invention, the line spacing and row spacing of field planting are arranged reasonably, so that the survival rate and yield of the Polygonum multiflorum are improved, and the Polygonum multiflorum planted and obtained by using the method provided by the present invention is stable in quality and high in yield.

The invention provides a plastic foam material and a preparation method thereof. The plastic foam material is prepared from base resin, a reaction type foaming agent and a cell nucleating agent, wherein the base resin is polymer resin or modified polymer resin with an end group with reactive hydrogen; in terms of total weight, the content of the base resin is 78.7-97.8%, the content of the reaction type foaming agent is 2.0-19.7%, and the content of the cell nucleating agent is 0.2-1.6%. The invention also provides a preparation method of the plastic foam material. The plastic foam material has better quality.

The invention relates to a silicon-and-magnesium-containing aluminum alloy sheet for an air-conditioning radiator. The silicon-and-magnesium-containing aluminum alloy sheet comprises the following chemical elements by mass percent: 0.25-0.35% of Si, 0.48-0.55 of Mg, 0.01-0.02 of Cr, 0. 05-0.15 of Fe, 0.01-0.03 of Ti, 0.01-0.03 of Cu, 0.005-0.02 of La, and the balance being Al. The aluminum alloy sheet provided by the invention has high strength and toughness, is added with lanthanum, the composition undercooling is carried out during gold casting, crystal grains are refined, a secondary crystal spacing is reduced, gas and inclusions in an alloy are reduced, and an inclusion tends to be nodulized, the surface tension of a melt can also be reduced, the mobility is increased, and ingots are favorably cast. According to a production method provided by the invention, the phenomena of layering, peeling, bubbling and cracking of aluminum alloy are reduced, and the yield is improved; a refining agent has a good refining effect, so that the pores and slag inclusion phenomena are obviously reduced.

The invention provides a preparation mold for a piston for a high-power engine and a piston preparation method. In the prior art, the problems that the casting defects such as shrinkage porosity of the center of the top of a blank are more, more air hole defects exist on the top of a piston, and the performance difference between the skirt part of the piston and the top of the piston is relativelylarge exist. The provided preparation mold comprises a top mold, a side mold and a core mold, a pressure air channel and a dead head structure are arranged in the top mold, and a cooling water channel is formed in each of the side mold and the core mold; and the preparation mold is characterized in that a pressure adjusting device is connected to the pressure air channel in the mold, the coolingwater channel on the side mold is in a wave shape, and an emitting head of an ultrasonic generator is arranged on the core mold. The problems of shrinkage porosity, the air holes and the poor overallperformance consistency in the prior art are well solved.

A drying unit (30) of this tablet printing device is provided with: a blower fan (81) which forms a flow of a gas; heaters (82) for heating the gas; and a plurality of blow-out ports (31) through which the heated gas is blown out towards tablets. Each of the plurality of blow-out ports (31) is provided in a position facing the conveyed tablets (9). Accordingly, the heated gas can be prevented fromlaterally hitting the tablets (9) being conveyed. Therefore, the gas can be made to hit the tablets forcefully, while preventing the tablets (9) being conveyed from being blown off. As a result, inkadhered to the surfaces of the tablets (9) can be dried efficiently.

The invention discloses an impregnation dryer, and a second drying mechanism comprises a second drying chamber, a burner, a second heating device, a second condensing chamber, a second hot air outlet, a second condensing unit and a second impregnant collection device. In addition, the second impregnant collection device is arranged at the bottom end of the second drying chamber, and is used to collect an impregnant in the second drying chamber. Through use of the structure, the drying mechanism is provided with the impregnant collection device, part of the impregnant carried out from a first impregnation mechanism is recovered, and returned to the first impregnation mechanism, system temperature fluctuation can be also improved by the device, and the production process tends to be a stable environment. Exhaust in a cooling mechanism is introduced into a gas inlet of the burner for improvement of combustion gas problem of the burner, and by use of waste heat of the exhaust in the cooling mechanism, the impregnation dryer plays the role of energy conservation and emission reduction.

The invention discloses a method and device for improving torque and an engine. When the humidity is increased, if the engine is in an external characteristic work condition, due to the fact that thegravity center of the heat release rate is properly improved, the combustion speed is increased, the flame spreading stability is improved, the combustion efficiency is improved, and the torque of theengine is improved; and due to the fact that the valve opening degree of EGR is properly reduced, waste gas guided into an air cylinder is reduced, fresh air and gas entering the air cylinder are increased, and the torque of the engine is improved. If the engine is not in the external characteristic work condition, the opening degree of a throttle valve is properly increased, the gas mass entering the air cylinder is increased, the fresh air and gas guided into the air cylinder are increased, and the torque of the engine is improved. In addition, whether the engine is in the external characteristic work condition or not, a waste gas bypass valve of a supercharger is activated according to a pulse width modulation signal, the gas mass entering the air cylinder is increased, the fresh air and gas guided into the air cylinder are increased, and the torque of the engine is improved.

The invention relates to a composition for preparing coal briquette. The composition comprises blind coal, coke powder, glutinous rice flour and sodium chloride. The coal briquette prepared from the composition has a fairly ideal calorific value, and does not cause pollution on the environment, and especially, coal slime is added to the composition, so that the surface of the coal briquette is smooth; the coal briquette is not easily crushed; and a certain amount of pulverized coal is generated even if the coal briquette bears large friction force, so that waste of resources can be avoided.

The invention discloses low-cost activated carbon kieselguhr particles with developed pores. The activated carbon kieselguhr particles are characterized by being prepared from the following raw materials in parts by weight: 95-105 parts of nut shell activated carbon, 30-35 parts of kieselguhr, 18-22 parts of Chinese medicine residue, 22-26 parts of tung shell, 6-9 parts of kaolin, 1-2 parts of a silane coupling agent kh560, 3-4 parts of sodium sulfate, 4-6 parts of limestone powder, 2.5-3.5 parts of glass beads, 3.5-5 parts of silica powder, 3-5 parts of clay, 3-5 parts of activated aluminum oxide, 4-6 parts of an absorption auxiliary agent and a proper amount of water. According to the activated carbon kieselguhr particles, the resources such as Chinese medicine residue, tung shell are reused and are fed into the activated carbon and the kieselguhr after being dried and ground; the activated carbon kieselguhr particles are sufficient in raw materials, developed in pores, high in absorption and excellent in performances; the absorption auxiliary agent is fed into the activated carbon kieselguhr particles, so that the activated carbon kieselguhr particles have special porosity, and the contact time of the activated carbon kieselguhr particles with air can be prolonged; the activated carbon kieselguhr particles have good desulfurization and dust-removal effects, are high in porosity, low in cost and simple in production technology, and are capable of greatly lowering the operating cost of dry desulfurization.

A lithium titanate battery comprises a positive pole plate, a negative pole plate, a separator and an electrolyte, wherein the positive pole plate comprises a positive current collector and a positive active substance, the positive active substance is coated on the positive current collector, the negative pole plate comprises a negative current collector and a negative active substance, the negative active substance is coated on the negative current collector, the electrolyte comprises an organic solvent, a lithium salt and a functional additive, the functional additive is polysiloxane and lithium difluorophosphate, and the electrolyte is injected after winding the positive pole plate, the separator and the negative pole plate. In the lithium titanate battery provided by the invention, the polysiloxane and the lithium difluorophosphate are added into the electrolyte, the decomposition of LiPF6 is prevented, the content of HF is reduced, the stability of an interface of the electrolyte and lithium titanate is improved, the problem of gas expansion of the lithium titanate is effectively solved, and the high-temperature cycle property, the storage performance and the low-temperature output performance of a lithium titanate power battery are improved.

The invention relates to a base material, a matrix and a cold chain transporting freshness keeping device. The base material is formed by at least one fiber material, and the fiber materials are distributed in an imbrication manner, so that the base material can be in a 3D structure and has first looseness and first thickness. The matrix comprises the base material and a functional adjusting material, and the base material is filled with the functional adjusting material. The cold chain transporting freshness keeping device comprises the matrix and freshness keeping products placed in the matrix. The base material facilitates functioning fixedness and fluid liquidity, and therefore enough space and an aerobic environment can be provided for the roots of plants growing in the base material or other species; the functional adjusting material in the matrix can provide essential functional substances for the species; and the cold chain transporting freshness keeping device is ecological and environment-friendly, simple in structure, small in weight and capable of well preventing transmission of cold energy, achieving a good cold energy keeping effect and making the products reach the function of long time freshness keeping.

A battery electrolyte A lithium ion battery containing the electrolyte is also disclosed, As that acid anhydride derivative additive is added into the battery electrolyte, At the same time, the acid anhydride derivative additive contains O, N, Si, F and has good compatibility with the positive and negative electrode materials when it is used as the electrolyte additive, which can effectively inhibit the gas expansion of the battery and improve the high-temperature cycling performance of the battery.

The invention discloses refreshing compound essential oil wet tissue. The wet tissue is prepared by, by weight, 1.5-2.5 parts of benzoin essential oil, 1.2-2.0 parts of rosemary essential oil, 0.8-1.5 parts of thyme essential oil, 0.5-1.2 parts of mint essential oil, 0.4-1.0 part of tea plant essential oil, 0.5-1.3 parts of vetiver essential oil and 7.8-8.5 parts of wheat germ oil. The refreshing compound essential oil wet tissue has the advantages that naturally-extracted essential oil serves as a raw material, no toxic irritant substance is contained, no side effect is generated for the human body after the wet tissue is used for a long time, people cannot be addicted to the wet tissue, and the wet tissue is safe and effective. Borneol is added into components, absorption to the essential oil by nasal cavity mucosa is enhanced, and the wet tissue further has heat absorption and cooling effects when used in summer.

The invention discloses a compound essential oil spray with a refreshing function. The compound essential oil spray with the refreshing function is prepared from the following active ingredients in parts by weight: 1.5-2.5 parts of benzoin essential oil, 0.5-1.2 parts of peppermint essential oil, 0.5-1.0 parts of sweet marjoram essential oil, 1.2-2.0 parts of rosemary essential oil, 0.8-1.5 parts of thyme essential oil, and 7.5-8.5 parts of wheat germ oil. The compound essential oil spray has good effects that the natural extraction essential oil is taken as the raw material without toxic stimulating substance, the compound essential oil spray does not have side effect or addiction on a human body after being used for a long time and is safe and effective; the essential oils are mixed and cannot generate other dangerous chemical substances and the fragrance is fresh and cool; the fatigue nerve of the human body is completely activated through meridian circulation and qi and blood flow.

The invention discloses a dendrobe and rose apple fruit vinegar brewing method. The dendrobe and rose apple fruit vinegar brewing method is characterized in that dendrobe and rose apple are taken as raw materials, and meanwhile, fructus evodiae, root of Woods Greenstar and root of Szechwan-Yunnan Sanicle are added to brew a dendrobe and rose apple fruit vinegar. The nutritional values of dendrobe and rose apple are fully utilized, dendrobe and rose apple are compatible with herbs to achieve synergetic interaction, and the effects of invigorating spleen to promote digestion, appetizing and promoting salivation are achieved. The end product of the dendrobe and rose apple fruit vinegar is mellow in taste, is sour and sweet, has the fragrance of vinegar and fruit, and can remarkably improve the discomfort of people with gastric flatulence and inappetence if being taken for a long time. The dendrobe and rose apple fruit vinegar brewing method is simple in manufacture process and remarkable in economic value, conforms to the health requirement of people and allows mass production.

The invention discloses an environmentally-friendly treatment device for paint spray workshop gas. The device comprises a treatment box, a filtering plate is arranged in the treatment box, the right end of the filtering plate is fixedly connected with a plugging block, the right side of the treatment box is fixedly connected with a fixing box, a driving bevel gear is arranged in the fixing box, the right side of the driving bevel gear is fixedly connected with a rotating shaft, the upper side of the driving bevel gear is in engaging connection with a driven bevel gear, and the middle part of the driven bevel gear is fixedly connected with a threaded rod. The environmentally-friendly treatment device for paint spray workshop gas can treat the paint smell in the paint spray workshop to achieve environmentally-friendly discharge standards, prevent environmental pollution and ensure the health of human bodies.