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857results about How to "Fully play" patented technology

Monocrystal-like lithium battery ternary cathode material and preparation method thereof

The invention relates to a monocrystal-like lithium battery ternary cathode material and a preparation method thereof. The chemical formula of the cathode material is LiNi(1-x-y-z)CoxMnyMzO2, wherein x is larger than 0 and smaller than or equal to 0.65, y is larger than 0 and smaller than or equal to 0.3, z is larger than or equal to 0 and smaller than or equal to 0.05, and M is one or more of Mg, Ca, Ti, Zn, Cr, Fe, Zr, Co, Cu and Ru. The preparation method of the cathode material comprises the following steps of 1 precursor synthesizing; 2 material mixing, wherein a fluxing agent is added in the material mixing process; 3 sintering and the like. According to the method, the melting point of the material is lowered by adding the fluxing agent, therefore, precursors and lithium salts are in a molten environment, dispersion of metal ions is accelerated, and crystal grains start to grow and development at low temperature, break limitation of precursor aggregates after growing to a certain degree to be dispersed into monocrystal grains and finally grow into the cathode material with the monocrystal morphology; the sintering frequency and the sintering time in the existing monocrystal material synthesizing process are decreased, and then the production cost is reduced.
Owner:HENAN KELONG NEW ENERGY CO LTD

High-strength wear-resistant engineering microcrystalline glass prepared by using granite waste materials and preparation method thereof

The invention discloses high-strength wear-resistant engineering microcrystalline glass prepared by using granite waste materials and a preparation method thereof. The microcrystalline glass disclosed herein comprises 10.0-55.0wt% of granite waste materials as the main raw material, and comprises SiO2, CaF2, CaCO3, ZnO, K2CO3, etc. as the auxiliary raw materials. The preparation method comprises the following steps: crushing the granite waste materials, uniformly mixing the crushed granite waste materials with other raw materials in a mixer to obtain a base mixed batch, using a tank furnace to carry out high temperature melting on the base mixed batch to obtain qualified liquid glass, carrying out calendaring, casting or water quenching on the liquid glass to form a base glass plate (or pellets), and carrying out crystallization heat treatment on the base glass plate (or pellets) to obtain the microcrystalline glass. The microcrystalline glass has a density of 2.5-2.8g/cm<3>, a flexural strength of 30.0-103.5MPa, a compressive strength of 70.0-903.0MPa, a Moh's hardness of 5-8, and a wear resistance of 0.063-0.15g/cm<2>, has the advantages of high strength, good toughness, strong wear resistance and corrosion resistance, and excellent cutting machinability, and an be widely applied in the fields of chemical industry, metallurgy, building decoration, petroleum, etc.
Owner:INST OF PROCESS ENG CHINESE ACAD OF SCI

Method for preparing congou black tea from anji white tea

The invention relates to a black tea preparing method and particularly relates to a method for preparing congou black tea from anji white tea. The method sequentially comprises the following steps: picking based on a one-bud and one-leaf standard; withering; rolling; fermenting: arranging the rolled leaves to be fermented into a bamboo basket, controlling the leaf stacking thickness to be 8-10cm, uniformly spreading, and layering the leaves on a fermentation rack; fermenting by using a tea fermenting machine, controlling the air temperature at 35-40 DEG C, keeping the leaf temperature 30-32 DEG C, the relative humidity over 95% and sufficient oxygen supply, recording the fermentation time beginning from the rolling time, and controlling the fermentation time to be 5.5-6.0h. At the later period of fermentation, the temperature of a fermentation chamber is lowered and is controlled at 30-35 DEG C, so that the excessive fermentation is avoided; the moderate fermentation is carried out, and the fermented leaves are removed from the fermentation chamber, subjected to heat radiation, cooled and dried. By using the method, the anji white tea can be prepared into the congou black tea which is dark in luster, compact in strip, sweet and durable in fragrance, red bright in liquor color as well as pure, mild and fresh in taste.
Owner:浙江安吉宋茗白茶有限公司

Silver nanometer column array erected on orifice of porous alumina template and preparation method and application thereof

The invention discloses a silver nanometer column array erected on the orifice of a porous alumina template and a preparation method and application thereof. The silver nanometer column array is characterized in that silver nanometer columns with the heights of 30-200 nanometers and the diameters of 30-60 nanometers are sequentially hexagonally arrayed on the periphery of the orifice of the porous anodic alumina template with taper holes; and silver nanometer particles with the particle size of 5-40 nanometers are attached to the walls of the taper holes. The preparation method comprises the following steps of: firstly placing an aluminum sheet into an oxalic acid solution, and carrying out anodization at direct-current voltage for at least 2 hours; then placing into a phosphorus-chromium acid mixed solution, and soaking for at least 3 hours to obtain an intermediate product; then firstly placing the intermediate product into the oxalic acid solution, carrying out the anodization at the direct-current voltage for at least 20 seconds, then placing the intermediate product into a phosphorus acid solution, and soaking for at least 1 minute; repeating the process for at least 10 times to obtain the alumina template with the holes in the shape of the taper holes; and then placing the alumina template into an ion sputter for silver sputtering so as to prepare a target product. The silver nanometer column array disclosed by the invention can be used as an active base of surface-enhanced Raman scattering; and the content of rhodamine or tetrachlorobiphenyl which is attached to the silver nanometer column array is measured by using a laser Raman spectrometer.
Owner:HEFEI INSTITUTES OF PHYSICAL SCIENCE - CHINESE ACAD OF SCI

Control system and method for novel battery equalizer

The invention discloses a control system and method for a novel battery equalizer, belonging to the technical field of battery equalization control. The method comprises the following steps of: acquiring battery information by using a battery management system, judging whether the battery is required to be subjected to equalization treatment or not, determining the number of the single battery required to be subjected to equalization treatment and judging whether the single battery needs to be subjected to discharging equalization or charging equalization; and acquiring information of the single battery which is required to be subjected to equalization treatment by using the equalizer, processing the information of the single battery, acquiring charging and discharging parameters, acquiring charging and discharging commands, judging a module on which the single battery is arranged, transmitting a control command to the equalizer and simultaneously feeding back equalizing information to an equalized judging unit of the battery management system. According to the invention, by combining a power battery BBS (Battery Balance System) with a BMS (Battery Management System), the equalized requirement for the single battery can be actively judged, the mileage range of the automobile is improved and the service life of the battery is prolonged.
Owner:CHERY AUTOMOBILE CO LTD

Building construction site efficient disinfectant spraying device

A high-efficiency spraying device for disinfectant on a building construction site, comprising a car body, a driving motor is fixedly installed on the top of the car body, a driving bevel gear is fixedly installed on the stirring shaft, a runner is fixedly installed coaxially on the left end of the driven shaft, and the runner A connecting rod is hinged on the edge of the left side; the upper side of the lifting block is connected with the first steel wire rope, and the end of the first steel wire rope away from the lifting block is fixed on the upper slider; the rotation type in the car body is equipped with a limit pulley, and the lower end of the lifting block is connected with the second steel wire rope , the second steel wire rope is wound on the limit pulley, and the right end of the second steel wire rope is fixed on the limit baffle; the water drawing sleeve is connected with a liquid outlet hose, and the first one-way hose is installed on the liquid outlet hose. Valve, the invention has ingenious structure and reasonable design. Through the up and down reciprocating movement of the lifting block, the up and down reciprocating movement of the nozzle and the fan is realized, so that the up and down spraying range of the disinfectant is wider, the distance is longer, and the disinfection and sterilization effect is better.
Owner:李群珍

Two-stage balance control circuit, system and policy for charge and discharge of lithium battery packs

The invention discloses a two-stage balance control circuit, system and policy for charge and discharge of lithium battery packs. The balance control circuit comprises a symmetrical multi-winding transformer and DC-DC converters; the system comprises the lithium battery packs and the two-stage balance control circuit for charge and discharge of the lithium battery packs, connected with the lithium battery packs; the two-stage balance control circuit comprises a data acquisition circuit, a balance circuit, a controller and a driving circuit; according to the control policy, balance control between single lithium batteries in the lithium battery packs is performed firstly; and then balance control between the lithium battery packs is carried out. According to the method, the DC-DC converters are used for performing balance between the single lithium batteries and the improved symmetrical multi-winding transformer is used for performing balance between the lithium battery packs; and therefore, by complementing advantages of the two kinds of topological structures, the problems of complex control, inaccurate balance, slow speed, low efficiency, high cost and the like existing in the lithium battery balance technology are solved.
Owner:HENAN UNIV OF SCI & TECH
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