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181results about How to "Meet industry needs" patented technology

Method for recycling positive-negative electrode mixed material of waste ternary lithium-ion battery

The invention provides a method for recovering a positive-negative electrode mixed material of a waste ternary lithium-ion battery. The method comprises the following steps: discharging and disassembling the waste lithium-ion battery to obtain nickel-cobalt lithium manganate positive electrode and silicon-carbon negative electrode mixed powder, a battery shell, a copper foil, an aluminum foil anda diaphragm; performing mixing, ball-milling and roasting on the mixed powder and carbonate and recycling CO2 generated in the reaction process; putting a roasted mixture into a dilute alkali solution, filtering, introducing CO2 to separate silicon and aluminum in a filtrate, dissolving filter residue in an acid, leaching Li<+>, Ni <2+>, Co <2+>, Mn<2+> and Cu <2+> in the filter residue, filteringto remove graphite, and recovering negative electrode material carbon by a solid phase method; adding sulfide into the leachate, adjusting the pH value to remove impurity copper, and preparing a nickel-cobalt-manganese hydroxide ternary precursor through a coprecipitation method; introducing CO2 into the filtrate, heating, concentrating and crystallizing to prepare lithium carbonate. The method is simple in process, low in cost, high in recovery rate and capable of achieving the full-component recovery of the nickel cobalt lithium manganate positive electrode and a silicon carbon negative electrode mixed material, and resources can be recycled.
Owner:SHENZHEN QINGYAN EQUIP TECH CO LTD

High-voltage integration module for electric automobile

The invention discloses a high-voltage integration module for an electric automobile. A submodule in the high-voltage integration module comprises a complete vehicle controller, a motor controller, a DC-DC converter, a DC-AC converter and a charger; an external port of the high-voltage integration module comprises a low-voltage port, a quick-charge port, a slow-charge port, a ceramic heating PTC port, an air conditioner port, an oil pump port, an air pump port, a positive-keeping negative-keeping port, and a motor triphase port; a connecting network in the high-voltage integration module comprises a high voltage direct current, a high voltage alternating current, a local area network control network CAN bus and a low voltage wire harness. According to different types of automobiles, hardware and port requirement configuration can be performed on the high-voltage integration module disclosed by the invention, and the high-voltage integration module is suitable for different types of automobiles from purely electric cars to purely electric passenger cars. The high-voltage integration module can effectively integrate distributed controllers of the electric automobile, the length of an electric wiring of the electric automobile is shortened, and the architecture of a control module of the electric automobile is simplified.
Owner:BEIHANG UNIV

System and method for remote control coal mine evacuation working face advance detection and forecasting

ActiveCN101798923AAvoid harmComply with the requirements of the Safety RegulationsSurveyMining devicesControl systemRemote control
The invention discloses a system and method for remote control coal mine evacuation working face advance detection and forecasting, which comprises a remote control system, a firing device, a blasting excitation system, a blasting receiving system and an anti-explosion geological advance detector host, and is characterized in that the remote control system comprises an anti-explosion computer, a remote controller master computer and a remote control slave computer; the anti-explosion computer and the remote control master computer are connected to realize duplex communication; the remote controller master computer is connected with the remote controller slave computer point to point through a cable; the remote controller slave computer is connected with the anti-explosion geological advance detector master computer to realize duplex communication; the remote control coal mine evacuation working face advance detection and forecasting system also comprises a synchronous signal detectionbox; and the output end of the firing device is connected with the synchronous signal detection box, the firing device outputs excitation signals to the blasting excitation system through the synchronous signal detection box, thereby preventing an operator from harm.
Owner:CHINA COAL TECH & ENG GRP CHONGQING RES INST CO LTD

Water-based phenolic aldehyde epoxy graphene anticorrosion primer and preparation method thereof

The invention provides water-based phenolic aldehyde epoxy graphene anticorrosion primer and a preparation method thereof. The primer is prepared from a component A and a component B, and the component A comprises water-based epoxy curing agents, titanium dioxide, water-based aluminum paste, carbon black, graphene, nano-barium sulfate, water-based zinc phosphate, iron-titanium powder, dispersing agents, antifoaming agents, foam inhibitors, cosolvent, wetting agents, neutralizer, water-based polyamide wax liquor, flash-rust-proof agents and deionized water; the component B adopts water-based phenolic aldehyde epoxy resin emulsion. The preparation method comprises the steps that the component A is prepared first, and in the using process, the component A and the component B are mixed. According to the anticorrosion primer, due to the fact that the graphene is introduced, the properties of water resistance, acid resistance, alkali resistance, salt tolerance, acetone resistance and salt spray resistance of a coating are greatly promoted; it is indicated that after graphene oxide is introduced into the water-based phenolic aldehyde epoxy graphene anticorrosion primer, the protective property to the coating can be promoted, and the requirements of markets and industries are completely met.
Owner:JIANGSU HUAXIA PAINT MAKING

Weather-resistant medium-temperature cured epoxy resin adhesive and preparation method thereof

InactiveCN111334232ABroaden applicationOvercome the disadvantages of poor weather resistanceEpoxy resin adhesivesPolymer scienceResin adhesive
The invention discloses a weather-resistant medium-temperature cured epoxy resin adhesive and a preparation method thereof. The adhesive comprises the following components, by weight: 10-40 parts of epoxy resin A, 10-40 parts of epoxy resin B, 5-15 parts of a diluent, 5-15 parts of a flexibilizer, 1-3 parts of a thixotropic agent, 1-3 parts of a stabilizer, 30-60 parts of a filler, 5-10 parts of acuring agent, 1-5 parts of an accelerant and 0.5-2 parts of a coupling agent. The epoxy resin A is common bisphenol A or bisphenol F epoxy resin; and the epoxy resin B is hydrogenated bisphenol A epoxy resin or alicyclic epoxy resin. According to the invention, the epoxy resin A and the epoxy resin B are compounded with a weather-resistant auxiliary agent for advantage complementation; the obtained epoxy resin adhesive has the advantages of being good in temperature resistance and ultraviolet aging resistance, excellent in mechanical property, resistant to cold and hot impact and the like, the application cost of the weather-resistant epoxy resin adhesive is reduced, the application range of hydrogenated bisphenol A epoxy resin or other alicyclic epoxy resin is widened, and the defects that an epoxy resin adhesive is poor in weather resistance and the like are overcome.
Owner:DONGGUAN HUARTONG ELECTRONICS

Environment-friendly safe discharging method for waste lithium ion battery

The invention provides a green and environment-friendly safe discharging method for a waste lithium ion battery. The method comprises the following steps: uniformly mixing graphite, a binder and an additive in proportion to prepare discharging particles; the waste lithium ion batteries and the discharge particles are placed in a net-shaped tray arranged in a cavity, the tray is connected with a vibration pressurizing device, the vibration pressurizing device drives the tray to vibrate, the waste lithium ion batteries and the discharge particles in the tray are gradually pressurized, when the set pressure value is reached, vibration is stopped, and the waste lithium ion batteries and the discharge particles are discharged. Allowing the waste lithium ion battery and the discharge particles to stand at a low temperature, releasing the pressure to discharge the discharge particles, mixing the waste lithium ion battery and the discharge particles again, vibrating, pressurizing, standing, and releasing the pressure to obtain the discharged waste lithium ion battery. According to the invention, all the waste lithium ion batteries can be tightly connected with the discharge particles, uniform and thorough discharge of all the batteries can be ensured, the temperature of the waste lithium ion batteries during discharge can be reduced, the discharge safety is ensured, and thorough discharge can be ensured by multiple standing treatment.
Owner:SHENZHEN QINGYAN EQUIP TECH CO LTD

Ball-milling spray regeneration method of waste lithium ion battery positive electrode material

The invention discloses a ball-milling spray regeneration method of a waste lithium ion battery cathode material. The method comprises the following steps of detecting the content of each element in waste lithium ion battery nickel cobalt lithium manganate cathode powder, mixing the waste lithium ion battery nickel cobalt lithium manganate cathode powder, a lithium salt, a nickel salt, a cobalt salt, a manganese salt, a binder and an ionic liquid, and carrying out ball-milling refinement in a planetary ball mill; carrying out ball-milling treatment on the mixture to obtain turbid liquid; uniformly stirring the turbid liquid, performing spray drying, and collecting powder; and roasting the obtained powder to obtain a regenerated nickel cobalt lithium manganate positive electrode material. The method is advantaged in that the positive electrode material provided by the invention is clean in regeneration process, low in cost and free of waste water and waste gas emission, valuable metalscan be utilized in a high-valued manner, and meanwhile, the prepared nickel-cobalt-manganese ternary material is high in tap density, good in consistency, controllable in granularity and stable in performance, and has excellent physical and electrochemical properties.
Owner:KUNMING UNIV OF SCI & TECH +1

Eu < 2 + >-doped blue-light fluorescent material, preparation method thereof and white-light LED light-emitting device

The invention discloses an Eu < 2 + >-doped blue-light fluorescent material, a preparation method thereof and a white-light LED light-emitting device, and belongs to the technical field of light-emitting materials. The chemical composition formula of the red phosphor is RbBaBP2O8: xEu < 2 + >, wherein x is more than or equal to 0.01 and less than or equal to 0.10. In addition, the invention also discloses a preparation method of the blue-light fluorescent powder. The novel blue-light fluorescent powder disclosed by the invention is single in phase, excellent in thermal stability, high in luminance, good in temperature quenching characteristic and relatively wide in excitation and emission range, and the fluorescence can be kept at 80.6% of the original intensity at 200 DEG C. The preparation method of the fluorescent powder is simple, easy to operate, pollution-free and cheap in raw materials. A warm white light LED manufactured by combining the blue light fluorescent powder and the existing commercial red light and green light fluorescent powder is high in luminance, good in chemical stability and wide in excitation and emission range. In addition, the blue light fluorescent powder is good in color rendering performance, high in energy conversion rate and good in color temperature uniformity, and can meet the requirements of the lighting field.
Owner:SOUTH CHINA UNIV OF TECH

Wall breaking agent for sludge, hydrophobic skeleton, preparation method and sludge reduction method

The invention provides a wall breaking agent for sludge and a preparation method of the wall breaking agent. The wall breaking agent is prepared by compounding a targeting agent, a bactericide, a penetrating agent and a cross-linking agent in sequence and proportion. According to the provided hydrophobic skeleton and preparation method, biomass powder or treated modified dry sludge is used as a filler base material, and the wall breaking agent is dried and loaded on the filler base material to be mixed and prepared. The invention also provides a sludge reduction method for a sewage plant, which comprises the following steps: increasing the solid content of water-containing sludge to 4-5%, adding the wall breaking agent, adding a hydrophobic skeleton, uniformly stirring them, carrying out areaction process, carrying out pressure filtration dehydration on the obtained mixed liquid to obtain sludge cake with the water content of 45-48%, carrying out mud cake recovery, outward transport landfill or incineration, or selection of a part of sludge as a filler base material in the hydrophobic skeleton, and recycling a filter pressing liquid as a carbon source for a sewage treatment system. According to the method, the floc structure of the sludge can be fully destroyed, the water content of the dewatered water-containing sludge is reduced with low energy consumption and cost, microorganisms can be killed, odor can be removed, toxic substances in the sludge can be adsorbed, and treated solids and liquid can be recycled.
Owner:深圳市政水环境技术有限公司

Application privacy leakage detection method and system, terminal and medium

ActiveCN113158251AAutomatic, efficient and accurate detectionPrivacy leaks quicklyDigital data protectionPlatform integrity maintainanceData streamEmbedded system
The invention provides an application privacy leakage detection method and system. The method comprises the following steps: acquiring a to-be-detected APK for a GDPR; establishing a dynamic detection system, automatically installing and operating the APK, and collecting data information required by dynamic detection; during the automatic installation and operation period of the APK, establishing static detection channels in parallel, and collecting data information needed by static detection and matched with the data information needed by dynamic detection; and through combination of the data information required by dynamic detection and static detection and by means of association analysis and data flow information matching, screening out required information and privacy so as to complete detection of privacy disclosure of the application program. Meanwhile, the invention provides a corresponding terminal and a medium. According to the invention, the problem of privacy leakage in application programs can be automatically, efficiently and accurately detected in a short time without manually setting rules; and the privacy leakage of the application programs can be quickly, simply, conveniently and flexibly detected, and the requirements of the industry are met.
Owner:SHANGHAI JIAO TONG UNIV

Method for depositing aluminum nitride film on silicon substrate and silicon wafer

The invention provides a method for depositing an aluminum nitride film on a silicon substrate. The method comprises the steps of: S1, carrying out the pre-cleaning of a to-be-processed silicon substrate so as to remove an oxidation layer on the surface of the to-be-processed silicon substrate; S2, baking the pre-cleaned to-be-processed silicon substrate; S3, pre-cleaning an aluminum target material on a process chamber to remove an aluminum nitride film layer on the surface of the aluminum target material; S4, introducing inert gas into the process chamber, exciting the inert gas into plasma,and bombarding the pre-cleaned aluminum target material to deposit an aluminum film layer on the surface of the pre-cleaned to-be-processed silicon substrate, the inert gas not reacting with the aluminum target material; and S5, introducing inert gas and nitrogen into the process chamber, exciting the inert gas and the nitrogen into plasma, and continuously bombarding the aluminum target materialto deposit an aluminum nitride film layer on the surface of the to-be-processed silicon substrate obtained in the step S4. The invention also provides a silicon wafer. The method can be used for preparing the aluminum nitride film layer with high crystallization quality on the silicon substrate.
Owner:BEIJING NAURA MICROELECTRONICS EQUIP CO LTD

Method for treating pickle wastewater

The invention discloses a method for treating pickle wastewater. The method comprises the following steps: (1) cultivating and domesticating special halotolerant bacteria; (2) feeding the pickle wastewater into a grid well to primarily eliminate suspended solids; (3) conveying the wastewater inside the grid well into a conditioning pond for physical sedimentation, and stirring so as to ensure that the water quality is balanced; (4) feeding the wastewater into an anaerobic system to be treated so as to degrade and decompose organisms; (5) feeding the wastewater into an aerobiotic biochemical system for secondary aerobic anoxic treatment, further decomposing the residual organisms by using aerobic halotolerant bacteria and anoxic halotolerant bacteria respectively, and balancing the water quality; (6) performing solid-liquid separation in a secondary sedimentation tank to settle down sludge, and performing filtering treatment in a carbon filtering tank so as to ensure that the effluent is clear in quality. The method is compact in arrangement, the land is saved, impurities such as suspended solids and organisms in the pickle wastewater are sequentially eliminated, the effect of final sewage treatment is greatly improved, and a great deal of expense for extra treatment is saved for companies.
Owner:CHENGDU SHUANGDI ENVIRONMENT ENG

Regeneration method for positive electrode material of waste lithium iron phosphate battery

The invention provides a regeneration method for a positive electrode material of a waste lithium iron phosphate battery. The method comprises the following steps: carrying out discharge treatment onthe waste lithium ion battery, performing crushing and disassembling, separating out lithium iron phosphate positive electrode powder, mixing the lithium iron phosphate positive electrode powder witha hydrogen peroxide solution, leaching Li+, and introducing CO2 to control the pH value of the mixed solution, thereby obtaining a mixed solution A containing lithium salt and iron phosphate; measuring the ratio of lithium, iron and phosphorus in the mixed solution A, adding a lithium source, an iron source or a phosphorus source to enable the molar ratio of Li + to Fe3+ to PO43- to be (1-1.05): 1: 1, and adding a carbon source to enable the carbon content of the lithium iron phosphate product to be controlled to be 1%-10% to obtain a mixed solution B; and carrying out spray pyrolysis on the mixed solution B under a certain temperature condition and an inert gas atmosphere to obtain the carbon-coated lithium iron phosphate material. The method has the advantages of simple process, short flow, no introduction of impurity elements, mild reaction, high leaching efficiency, low cost and recyclable resources; the discharged waste gas is mainly CO2, and the method is green and environment-friendly and is beneficial to industrial large-scale production.
Owner:SHENZHEN QINGYAN EQUIP TECH CO LTD

Carbon dioxide desorption method for carbon capturing, storage and utilization technology

The invention provides a carbon dioxide desorption method for a carbon capturing, storage and utilization technology. The carbon dioxide desorption method is applied in the technical field of reutilization of low-temperature waste heat of a cement kiln. The carbon dioxide desorption method for the carbon capturing, storage and utilization technology comprises the following desorption steps: starting and adjusting an electric adjusting valve I (9), allowing saturated steam in a cement kiln tail waste heat boiler (1) to pass through a temperature-reducing and pressure-reducing unit (3) for temperature reduction and pressure reduction, and allowing the temperature-reduced and pressure-reduced saturated steam to enter an amine reboiler (4) in a desorption tower (2) for heating an amine liquid;subjecting carbon dioxide which passes through the desorption tower (2) to heating and desorption; and allowing the saturated steam obtained after heating and desorption of the carbon dioxide which passes through the desorption tower (2) to generate liquid-changing so as to form saturated water, and allowing the saturated water to enter a condensate water recovery unit (7) through a water returnpipe (6). The carbon dioxide desorption method for the carbon capturing, storage and utilization technology provided by the invention does not affect normal operation of a cement kiln waste heat powergeneration system, can meet the needs of desorption operation of a CCS system, and reduces the investment of economic cost.
Owner:ANHUI CONCH GRP +2
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