Patents
Literature
Hiro is an intelligent assistant for R&D personnel, combined with Patent DNA, to facilitate innovative research.
Hiro

531results about How to "Reduced Diffusion Resistance" patented technology

Adsorption module and method of manufacturing the same

An adsorption module has heat medium pipes through which a fluid flows, a porous heat transferring member, and adsorbent. The porous heat transferring member is a sintered body formed by sintering a metallic material that is in a form of one of powders, particles and fibers, and has pores for allowing an adsorbed medium to pass through. The porous heat transferring member is disposed on peripheries of the heat medium pipes and bonded to outer surfaces of the heat medium pipes by sintering. The adsorbent is disposed in the pores. The porous heat transferring member further has an adsorbed medium passage for allowing the adsorbed medium to pass through. The adsorbed medium passage is located between the heat medium pipes, and extends straight and parallel to axes of the heat medium pipes.
Owner:DENSO CORP

Multi-layer graphene/lithium iron phosphate intercalated composite material, preparation method thereof, and lithium ion battery adopting multi-layer grapheme/lithium iron phosphate intercalated composite material as anode material

The invention relates to a lithium iron phosphate intercalated composite material, a preparation method thereof and a lithium ion battery adopting the multi-layer graphene / lithium iron phosphate intercalated composite material as an anode material. In the prior art, the electronic conductivity of the lithium iron phosphate material is poor, high-rate charging / discharging capacity of the lithium ion battery adopting the lithium iron phosphate material as the anode material is poor. The purpose of the present invention is to solve the problems in the prior art, and improve the rapid charging capacity of the power lithium ion battery so as to meet the requirements of the pure electrocar. The composite material is prepared through the following steps that: a rheological phase reaction method is adopted for multi-layer graphene, a trivalent iron salt, a phosphorus compound, a lithium compound and carbon source of small organic molecule to obtain a composite precursor, then the precursor is sintered to obtain the multi-layer graphene / lithium iron phosphate intercalated composite material. The anode slurry of the lithium ion battery anode plate comprises the composite material, a conductive agent and polyvinylidene difluoride. The composite material is an intercalated structure, wherein the lithium iron phosphate particles are intercalated between the multi-layer graphene to form the intercalated structure. The trivalent iron salt is adopted as the raw material, such that the cost is reduced. The lithium ion battery has good charging / discharging cycle performance, wherein the specific capacity is more than 60 mA.h.g<-1> at the rate of 20C.
Owner:HARBIN INST OF TECH

Method of manufacturing semiconductor device

After gate insulating films, gate electrodes, and n+ type semiconductor regions and p+ type semiconductor regions for source / drain are formed, a metal film and a barrier film are formed on a semiconductor substrate. And a first heat treatment is performed so as to make the metal film react with the gate electrodes, the n+ type semiconductor region, and the p+ type semiconductor region, thereby forming a metal silicide layer formed of a monosilicide of a metal element forming the metal film. After that, the barrier film and the unreacted metal film are removed, and then a second heat treatment is performed to stabilize the metal silicide layer. The heat treatment temperature is made lower than a temperature at which a lattice size of a disilicide of the metal element and that of the semiconductor substrate become same.
Owner:RENESAS ELECTRONICS CORP

A hydrophilic-hydrophobic bipolar composite membrane and method for preparing same

The invention discloses a hydrophilic-hydrophobic bipolar complex membrane and the method for preparing the same. Said complex membrane comprises two layers, the bottom one is porous supporting system, and upper one is ultra-fine cerebral cortex; said porous supporting system is hydrophobic membrane and nonpolar, to avoid condensation of water vapour; ultra-fine membrane is hydrophilic membrane and polar, and LiCl with 1-5% by weight of main component can be doped to increase polarity; the thickness of porous supporting system is 30-100 um, and that of ultra-fine cerebral cortex is 5-20 um. The invention is characterized by simple process and low cost. The prepared bipolar complex membrane is characterized by good penetration property and gas selectivity, high intensity and wide application in water treatment, air conditioner engineering, energy, chemical industry, metallurgy and biochemical engineering. The product is especially suitable for air dehumidification and heat recycle of air cinditioner new gas.
Owner:SOUTH CHINA UNIV OF TECH

Method for producing propene for C4 and more olefin catalytic cracking

The invention relates to a kind of method for manufacturing propylene by catalytic cracking alkene of no less than tetra carbon, which mainly solves the short catalyst regeneration period problem and the stability problems uninvolved in previous technique. The invention uses minor crystalline grain and molecular sieve with high silicon-aluminium ratio as the catalyst for catalytic cracking with alkene that no less than tetra carbon to manufacture propylene. According to the technique scheme that described above, the invention can solve the problems mentioned above excellently, and can be used in industrial production of manufacturing propylene by catalytic cracking with alkene.
Owner:CHINA PETROLEUM & CHEM CORP +1

All-solid battery

An all-solid battery is formed so that an electrode active material layer of at least one of positive and negative electrodes has a composition distribution such that a local volume ratio, expressed by a ratio of a volume of an electrode active material contained in a part of the electrode active material layer with respect to a volume of a solid electrolyte material contained in the part of the electrode active material layer, increases as the part of the electrode active material layer approaches from an interface of the solid electrolyte layer toward an interface of a current collector in a thickness direction of the electrode active material layer, and a voidage of the electrode active material layer increases as the part of the electrode active material layer approaches from the interface of the solid electrolyte layer toward the interface of the current collector in the thickness direction.
Owner:TOYOTA JIDOSHA KK

Lithium ion battery and lithium-rich anode sheet

The invention provides a lithium ion battery and a lithium-rich anode sheet. The lithium-rich anode sheet comprises: a current collector; and a diaphragm, which contains an active substance and is formed on the current collector, wherein the diaphragm and the current collector form an initial anode sheet. The current collector in the initial anode sheet is a porous current collector. The initial anode sheet is rich in lithium on one side, and the lithium rich amount matches the lithium supplement capacity needed by the initial anode sheet. The lithium ion battery includes: a cathode sheet; an anode sheet; an isolation membrane disposed between the cathode sheet and the anode sheet; and an electrolyte solution. The anode sheet is a lithium-rich anode sheet. The lithium-rich anode sheet of the lithium ion battery provided by the invention not only overcomes the excess lithium supplement problem in traditional lithium-rich anode sheets, and also can effectively control the lithium supplement amount of the anode so as to realize uniform lithium supplement and enhance the first coulombic efficiency of the lithium ion battery adopting the lithium-rich anode sheet. Thus, the energy density of the lithium ion battery is greatly improved, and the lithium ion battery can be ensured with better electrochemical properties.
Owner:DONGGUAN AMPEREX TECH

Method of preparing three-dimensionally ordered macroporous chelate resin with hydrophilic-structure framework

The invention relates to a method of preparing three-dimensionally ordered macroporous chelate resin which has a hydrophilic-structure framework and can absorb precious metal irons in aqueous solution, belonging to the field of the chelate resin. The method of preparing the three-dimensionally ordered macroporous chelate resin comprises the following steps: (1) preparing 80-1000nm silica colloidal crystal template; (2) preparing three-dimensionally ordered Poly(N-vinylformamide) or poly(n-vinylacetamide) macroporous material; and (3) preparing hydrophilic three-dimensionally ordered macroporous chelate resin. Compared with the traditional macroporous or gel-type polyvinylamine resin, the novel three-dimensionally ordered macroporous chelate resin prepared with the method has the advantages that the regularly-arranged porous channel system has small diffusion resistance, which is good for the metal irons enter the absorption center from all directions. In addition, the novel three-dimensionally ordered macroporous chelate resin is easy to synthesize, has stable performance, good hydrophilic performance and high selectivity, contains many functional groups, can absorb a large number of metal irons and has better development and utilization values in the aspect of avoiding heavy metal pollution and protecting the environmental water.
Owner:HEBEI UNIV OF TECH

Preparation method of soft/hard carbon modified anode material for lithium ion batteries

The invention discloses a preparation method of a soft / hard carbon modified anode material for lithium ion batteries. The method comprises the following steps: (1) carrying out mixed granulation; (2)screening and crushing; (3) mixing; (4) treating at high temperature; (5) screening; (6) modifying; (7) carrying out secondary carbonization. The method is characterized in that a soft carbon precursor and a hard carbon precursor are both used as binding agents, kneading and granulating are carried out at a certain temperature and under other conditions, small graphite particles are polymerized soas to enable the internal structure to be further densified and increase the volume density, high-temperature graphitization is then performed, and asphalt and resin are converted to pyrolytic carbon, so that a soft / hard carbon graphite composite systems is formed; the surface of the modified soft / hard carbon composite anode material is evenly coated with a layer of Ti3SiC2, having good electrical conductivity and stable chemical properties, and a conductive network, so that the improvement of the discharge capacity, discharge efficiency and cycling stability of the graphite anode material isbetter promoted.
Owner:SHENZHEN SINUO INDAL DEV

Process nozzle and system for gasifying water coal slurry and application thereof

The invention provides a process nozzle and a system for gasifying water coal slurry. The process nozzle comprises a first oxygen channel, a water coal slurry channel, a second oxygen channel, a first cooling water jacket and a cooling water coil, wherein the first oxygen channel comprises a first oxygen channel inlet and a first oxygen channel outlet; the water coal slurry channel comprises at least one water coal slurry channel inlet and a water coal slurry channel outlet; the second oxygen channel comprises a second oxygen channel inlet and a second oxygen channel outlet; the first cooling water jacket comprises a first cooling water jacket inlet and a first cooling water jacket outlet; and the cooling water coil comprises a cooling water coil inlet and a cooling water coil outlet. The process nozzle is characterized in that: the first oxygen channel is positioned at the central position of the process nozzle; the water coal slurry channel is positioned between the first oxygen channel and the second oxygen channel and surrounds the periphery of the first oxygen channel; and the second oxygen channel surrounds the periphery of the water coal slurry channel. The process nozzle reduces the length of combustion flame more effectively, reduces the ablation of flame on a refractory brick, promotes the mixing and atomization of water coal slurry and oxygen and improves gasification efficiency.
Owner:CHNA ENERGY INVESTMENT CORP LTD +1

Supported integrated catalyst for formaldehyde purification and preparation method thereof

The invention discloses a supported integrated catalyst for formaldehyde purification and a preparation method thereof. The supported integrated catalyst consists of a titanium dioxide nanotube array supporter and precious metal M, wherein the precious metal M is one or a mixture of at least two of Pt, Ru, Rh, Pd and Au. The titanium dioxide nanotube array supporter is soaked in a precursor solution containing the precious metal and then is roasted to obtain a precious-metal-component-supported catalyst, and the catalyst is reduced through hydrogen or a reducing solution and can be directly used for catalytically purifying formaldehyde. The catalyst is simple in composition and preparation flow, and convenient to popularize and apply. The high activity and stability of the catalyst on the formaldehyde can be kept at low temperature, the formaldehyde can be catalytically oxidized under the condition that other additional devices are not needed, and can be converted into harmless H2O and CO2, and thus the green elimination of the formaldehyde is further realized.
Owner:SUN YAT SEN UNIV

Thermal gravimetrical reactor applied to bulk specimen testing

The invention discloses a thermal gravimetrical reactor applied to bulk specimen testing, belonging to testing equipment for performing thermo gravimetric analysis on specimens and aiming to solve the problems that small-mass and small-sized specimens are required and a sample vessel is unbeneficial to gas-solid reactions in the conventional thermo gravimetric analyzer. Through a high-temperature reactor, reaction gas is preheated fully, so that mass measuring errors caused by temperature change of the reaction atmosphere are avoided; two types of hanging baskets are specific to different specimens respectively, so that the diffusion resistance during the reactions of bulk specimens is reduced effectively, and complete reactions and measuring accuracy are ensured; the height of an electric heating furnace is adjusted through a hydraulic lifting platform, so that samples can be heated at constant temperature under a high-accuracy condition. The thermal gravimetrical reactor can be used for dynamically measuring the mass changes of bulk specimens at various heating rates or under a constant-temperature condition, and is more consistent with the requirements of scientific research production than the conventional thermal gravimetrical analyzer.
Owner:HUAZHONG UNIV OF SCI & TECH

Mesoporous titanium-silicon molecular sieve, and preparation method and application thereof

The invention discloses a mesoporous titanium-silicon molecular sieve, and a preparation method and application thereof. The titanium-silicon molecular sieve is a mesoporous nano titanium-silicon molecular sieve TS-1. The invention also discloses a novel catalyst for preparing an epoxy propane system through direct gas-phase epoxidation of propylene. Metal particles are loaded on the catalyst by taking the mesoporous nano titanium-silicon molecular sieve TS-1 provided by the invention as a supporter.
Owner:EAST CHINA UNIV OF SCI & TECH

Carbou doped titanium-oxide graded hole photocatalytic material and preparing method

This invention relates to TiO2 photocatalysis materials preparation, particularly relates to a classification carbon-doped titanium dioxide catalyst material and preparation method. This invention is a kind of the carbon-doped titanium dioxide with mesoporous - macroporous grade pore structure, carbon 3-25%, anatase phase, the big channel pore size of 300-1000nm, mesoporous aperture 2.0-24nm, the specific surface area can be as high as 691m2 / g. The described material is prepared by titanate and carbon mixture hydrolysis product of the roasting 300-600deg.C, and preparation of equipment used simple, the described materials in organic dye molecules have good catalytic properties on the photodegradation.
Owner:天津神能科技有限公司

Preparation method of lithium ion capacitor (LIC) adopting pre-lithiation hard carbon negative electrode

The invention discloses a preparation method of a lithium ion capacitor (LIC) adopting a pre-lithiation hard carbon negative electrode. Commercial activated carbon serves as a positive electrode, hard carbon serves as the negative electrode and 1M LiPF6 / EC+DEC serves as an electrolyte to assemble the LIC. The embedded lithium volume of the LIC is 400 mAh / g, the highest energy density and power density are 76.5 Wh / kg and 5.1 kW / kg respectively, and the energy keeping rate can still be as high as 92.0 percent after 1000 times of circulation. The energy density of the LIC after 15 hours of pre-lithiation can reach 97.2 Wh / kg, and small impedance and good circulation performance are achieved (after 1000 times of circulation at the current density of 1A / g, the energy keeping rate is 91.2 percent). When the mass proportion of the positive electrode and the negative electrode is 2.2, the energy keeping rate is 57.0 percent. Meanwhile, the LIC has quite small charge transfer internal resistance (10.4), and the maximum energy density and the maximum power density are 88.7 Wh / kg and 12 kW / kg.
Owner:TIANJIN UNIV

Method for preparing nano sillicalite-1 type total-silicalite molecular sieve

The invention relates to a method for preparing a nano sillicalite-1 type total-silicalite molecular sieve, belonging to the method for preparing the molecular sieve, and aiming to solve the technical problem that the nano-silicalite-1 type total-silicalite molecular sieve prepared by adopting the existing method has low yield. The method comprises the following steps: preparing the mixed solution of a templating agent and an alkali source, adding a silicon source into the mixed solution, stirring in a sealing form to obtain a mixture gel system, crystallizing the mixture gel system, washing the production of crystallization, centrifuging, drying, putting in a muffle furnace, and calcinating to obtain the nano sillicalite-1 type total-silicalite molecular sieve. The nano sillicalite-1 type total-silicalite molecular sieve prepared by adopting the method has the grain size of less than 20nm and the yield of 42-50%, can be used as the inert carrier of the shape selectivity catalyst and the gas separation membrane material and can be also in the field of gas separation and purification.
Owner:HEILONGJIANG HEIKE TECH CO LTD

High-safety all-solid-state lithium ion battery and production method thereof

The invention discloses a high-safety all-solid-state lithium ion battery which comprises solid electrolyte, a positive plate and a negative plate, wherein the positive plate and the negative plate are overlapped with each other; the solid electrolyte is arranged between the positive plate and the negative plate adjacent to each other; the solid electrolyte is formed by mixing Li1+aAaSibO4 (A is one of Al, Mn, Ni and Ti, a is more than 1 and less than 2, and b is less than or equal to 2), an adhesive and a solvent according to a ratio of t:h:(1-t-h), wherein t is 30-55 percent, and h is 5-17 percent. The original combustible electrolyte and diaphragm are replaced by the noncombustible solid electrolyte, so that the risk that the battery is on fire is effectively reduced. When the solid electrolyte is in a slurry state, the battery is assembled, good contact between the solid electrolyte and a pole piece can be guaranteed, and ion diffusion impedance is reduced. The invention also discloses a method for producing the high-safety all-solid-state lithium ion battery.
Owner:HUBEI JINQUAN NEW MATERIALS CO LTD

Carbon compound cathode material for ultracapacitor battery

InactiveCN101740230AGood lithium ion intercalation/extraction cycle performanceExcellent Capacitive Energy Storage PerformanceElectrolytic capacitorsFiberCapacitance
The invention discloses a carbon compound cathode material for an ultracapacitor battery, comprising a nuclear layer and a shell layer, wherein the shell layer accounts for the total weight of 10-40 percent; the nuclear layer is made of graphite materials subjected to surface nanometer treatment; and the shell layer is made of a porous carbon material. The surface nanometer treatment of the nuclear layer is to form a nano carbon fiber, a cabon nanotube or a nano hole on the surface of natural graphite, artificial graphite or an in intermediate phase carbon microsphere material in situ; and the porous carbon material comprises a three-dimensional structure that millipores are distributed on a carbon organism. Metal elements are doped in the shell layer. The component formula is reasonable; the prepared material has the nuclear and shell structures in which the metal elements are doped; meanwhile, the invention has favorable characteristics of energy accumulation by using double electric layers and lithium ion stripping / embedding, can effectively improve the high multiplying power and the power density of a lithium ion battery, meets the double requirements of the ultracapacitor battery on energy accumulation by using the lithium ion and double electric layers of the cathode material, can be used as a cathode of a high-performance lithium ion battery, and has favorable high multiplying power charge-discharge performances and industrial prospect.
Owner:CENT SOUTH UNIV +1

Bioelectrode formed by three-dimensional ordered porous oxide modified conductive film and preparation method of bioelectrode

The invention relates to a bioelectrode formed by a three-dimensional ordered porous oxide modified conductive film and a preparation method of the bioelectrode. The bioelectrode comprises a conductive film electrode which is formed on an insulation substrate, wherein the film electrode is formed on the insulation substrate in a deposition manner through a physical vapor deposition process; a three-dimensional ordered porous oxide layer containing redox proteins is prepared in situ on the surface of the film electrode; the redox proteins are fixed in pores of the three-dimensional ordered porous oxide layer by adopting an adsorption way, a crosslink way or a covalent bonding way. The pores in the three-dimensional ordered porous oxide layer of the bioelectrode are communicated with one another, so that the dispersion of analyte in an ordered porous material modified layer on the surface of the conductive film can be favored, the dispersion capacity of the analyte can be improved, a mesoporous structure which can be matched with different enzyme molecules can be obtained by utilizing different mesoporous structure guiding agents, and the fixation of the enzyme molecules can be favored. The bioelectrode has good biological compatibility, the fixing effect of the redox proteins is good, the dispersion resistance of the analyte is small, and the electron transmission efficiency is high, so that a biological sensor with high sensitivity can be provided.
Owner:HEFEI INSTITUTES OF PHYSICAL SCIENCE - CHINESE ACAD OF SCI

Regeneration method for modified zeolite molecular sieve amination catalyst

The invention discloses a regeneration treatment method for a modified zeolite molecular sieve amination catalyst. The regeneration method comprises the following steps of: regenerating soluble coke by inorganic acid or organic acid; smelting most coking materials and non-framework aluminum formed by hydrothermal dealumination; and performing charking regeneration on the smelted zeolite molecular sieve amination catalyst by N2 and O2 mixed gas to completely remove non-smelted coke, so that the performance of the modified zeolite molecular sieve amination catalyst is recovered. By the regeneration treatment method, the problem of activity loss caused by the hydrothermal dealumination is solved; and the service life of the modified zeolite molecular sieve amination catalyst is prolonged. The regeneration treatment method is mainly applied to a regeneration treatment process of the modified zeolite molecular sieve amination catalyst under the ethanol amine and the ammonia condensation and amination reaction.
Owner:XIAN MODERN CHEM RES INST

Alkali-modified ZSM-5 molecular sieve, preparation method and application thereof

The invention relates to a preparation method of an alkali-modified ZSM-5 molecular sieve, which includes the steps of: mixing ZSM-5 molecular sieve with an alkali solution, performing a reaction andperforming post-treatment, wherein the reaction is carried out at 150-200 DEG C. The invention also relates to an application of the alkali-modified ZSM-5 molecular sieve in an aromatization reactionof hexene. The alkali-modified ZSM-5 molecular sieve is low in micropore ratio, wherein the micropores are enlarged into the range of mesopores and macropores (5-110 nm); the molecular sieve also is higher in crystalline degree, can effectively delay deactivation due to coking, thus increasing service life of a catalyst; without damage on the appearance of the ZSM-5 molecular sieve, grain size canbe controlled and acidity of the ZSM-5 molecular sieve can be regulated; in addition, pore structure in the molecular sieve is regulated, so that catalytic performance and service life of the catalyst are improved.
Owner:CHINA UNIV OF PETROLEUM (EAST CHINA)

Method for preparing silicoaluminophosphate (SAPO)-34 molecular sieve molded catalyst, product prepared by method and application of product

The invention relates to a method for preparing an SAPO-34 molecular sieve molded catalyst, a molded catalyst prepared by the method and application of the molded catalyst. The method comprises the following steps of: activating montmorillonoid by using aqueous alkali; mixing the activated montmorillonoid and an aluminum source, a phosphorus source, a template agent and de-ionized water and then performing a hydrothermal crystallization reaction at a high temperature; and mixing and molding a montmorillonoid-contained base material, crystallization liquid of a silicoaluminophosphate molecular sieve and a binder to obtain the SAPO-34 molecular sieve molded catalyst. In the invention, the SAPO-34 molecular sieve molded catalyst is prepared by taking the montmorillonoid as a raw material, and the non-converted montmorillonoid in the crystallization liquid is used as a carrier material when the catalyst is molded, so that a carrier can be avoided or a smaller amount of the carrier is used during molding; and due to a layer structure of the montmorillonoid, a mesoporous or macropore structure can be formed when the catalyst is molded, and a pore-forming agent is not required to be added into the molding liquid, so that resources are saved and cost is reduced.
Owner:CHNA ENERGY INVESTMENT CORP LTD +1

Molecular blotting solid phase microextraction coating preparation method

The invention discloses a method for preparing the molecular engram solid phase micro-extraction coat, which comprises following steps: alkali cleaning, acid cleaning, activating and silanizing quartz fiber; assembling the template molecular and functional nomomer; adding crosslinking agnet and initiator, inserting silanized quartz molecular and thermally initiating the polymerization; extracting out the fiber to be aged; repeating aforementioned steps to reach needed thickness of coat; washing and removing the template molecular. Compared with commercial coat, the Prometryne molecular engram solid phase micro-extraction coat prepared by said method has better molecular recognition function on the triazine herbicide, while said coat is in porous structure without broken in long service. And its thickness can be adjusted via the plating times with better repeating ability. The extracting head can be used with the liquid chromatography, to separated and collect the triazine herbicide in the complex base as environment sample and food.
Owner:SUN YAT SEN UNIV

Ultralow temperature and high-rate lithium ion battery and preparation method thereof

The invention discloses an ultralow temperature and high-rate lithium ion battery and a preparation method thereof. The lithium ion battery comprises a positive plate, a negative plate, an isolation membrane and electrolyte; the positive plate is prepared from the components in mass percent: 92.5-94.0% of lithium manganate, 3.5-4.0% of composite conductive agent, and 2.5-3.5% of water-based binder; the negative plate is prepared from the components in mass percent:93.0-94.0% of graphite, 3.0-3.5% of composite conductive agent and 3.0-3.5% of water-based binder. The composite conductive agent in each of the positive plate and the negative plate is prepared from acetylene black, carbon nano-tube and graphene. For improving the conductivity of the electrode plate, reducing the polarization and improving the electric conductivity of the electrolyte at low temperature, the rate performance, the low-temperature charging / discharging performance and the safety performance of the lithium battery are effectively improved by optimizing the material collation and matching and like angles. The ultralow temperature and high-rate lithium ion battery disclosed by the invention breaks through the low-temperature application limitation of the existing lithium ion technology, greatly improves the electric chemistry performance of the lithium ion battery under the ultra-low temperature condition,and provides the guarantee for the application in the alpine region and military project.
Owner:贵州省铜仁华迪斯新能源有限公司

Perforated positive plate of lithium ion battery, and preparation method thereof

The invention discloses a perforated positive plate of a lithium ion battery. The perforated positive plate comprises a current collector coated with a lithium-iron oxide layer, and active substance layers arranged on upper and lower surfaces of the current collector, wherein uniform diffusion through holes are formed on the active substance layers and the current collector. The preparation methodcomprises the following steps: firstly coating a layer of Li5FeO4 on the aluminum foil surface to provide redundant lithium source for the battery, thereby retarding the lithium ion with the negativepole first effect to form irreversible SEI film consumption and enhancing long circulation performance; secondly, increasing the energy density of the battery by using the positive electrode with high compaction and high surface density; and finally forming a perforated pole plate, wherein the electrolyte can sufficiently enter the internal of the active substance to increase the infiltration ofthe electrolyte and retarding the expansion of the active substance, and the perforated positive plate can be applied in the battery industrialization in large scale. The conventional perforated aluminum foil is obtained by coating after perforating, and the perforated positive plate is obtained by perforating after coating, so that the surface density of the active substance is higher, and the energy density of the battery is 30% higher in relative to the conventional perforated pole plate.
Owner:HEFEI GUOXUAN HIGH TECH POWER ENERGY

Restoration method for heavy metal and (or) organic hydrocarbon contaminated soil

The invention provides a restoration method for heavy metal and (or) organic hydrocarbon contaminated soil. The restoration method comprises the following steps of: (1) mixing a molecular sieve, cyclodextrin, activated carbon, diatomite, ferrous sulfate, enzyme slag, plant ash and active iron powder to obtain a mixture, adding clay to knead the mixture, and rolling the mixture into an adsorbing base body with a hierarchical pore structure, and embedding the adsorbing base body into contaminated soil; (2) preparing a restoration agent solution containing cyclodextrin, enzyme and potassium tripolyphosphate to leach the contaminated soil, and adsorbing and preserving; and (3) repeating the step (2) by many times. According to the restoration method provided by the invention, restoration agent solution leaching is combined with adsorbing of the base body with the hierarchical pore structure, so that heavy metal and (or) organic hydrocarbon substance pollutants in the soil are removed in a compounded mode, and therefore, the restoration method is suitable for municipal sludge treatment, and restoration for a contaminated building site, an industrial and mineral waste site, wetland soil obtained by returning farmland to lake (sea) and a wetland park, is simple and easy to operate, is free of secondary pollution, and can be used for industrial production.
Owner:蓝畅

Mesoporous-microporous composite material and synthesis method thereof

The invention discloses a dielectric hole-microhole composite material and synthesizing method in the inorganic porous material, adsorbing material and catalytic material technical domain, which comprises the following steps: adopting zeolite molecular sieve as raw material; reacting with sodium bisilicate solution under 30-60 deg.c for 10-300 min; disintegrating particle part of zeolite molecular sieve into piece with microhole structure; adding cetyl trimethyl ammonium bromide as molder; adjusting pH value of mother liquid to 10-12; aging 1-8h; adding in the high-pressure autoclave to do water heat synthesizing reaction at 80-130 deg.c for 24-72h; separating solid; washing; drying; sintering under 500-600 deg.c for 5-10h; obtaining the Si-Al porous material with dielectric hole and microhole composite structure.
Owner:DALIAN UNIV OF TECH

Composite positive electrode for secondary battery based on vertically-oriented graphene

The invention discloses a composite positive electrode for a secondary aluminum battery. The positive electrode is formed by compositing vertically-oriented graphene, polyacrylonitrile and sulfur, wherein the oriented graphene vertically grows on a conductive substrate material to form a three-dimensional conductive framework; the polyacrylonitrile uniformly coats the surface of the conductive framework; an active substance namely the sulfur is loaded finally. The specific surface area of the composite positive electrode is large, the conductive performance is excellent, the energy density is high, and the preparation process is simple, and suitable for industrial production; the secondary aluminum battery prepared from the composite positive electrode has higher specific capacity and excellent cycle performance.
Owner:NANJING ZHONGCHU NEW ENERGY

Device for producing coarse titanium tetrachloride by low-temperature fluidizing chlorination

The invention discloses a device for producing coarse titanium tetrachloride by low-temperature fluidizing chlorination. The device comprises a furnace top, a furnace body and a furnace bottom, wherein the furnace bottom is provided with a gas distributor which is communicated with a gas inlet pipe and comprises a chassis and a plurality of gas nozzles uniformly distributed on the chassis; a gas outlet of each gas nozzle is upward; the furnace body is in a straight cylinder shape; the side wall of the furnace body is provided with a charging opening and a slag discharging opening; the charging opening is positioned at the bottom of the furnace body and is arranged opposite to the slag discharging opening; the arrangement position of the slag discharging opening is higher than that of the charging opening; and the vertical distance of the slag discharging opening to the charging opening is 1.2-2.2m. With the adoption of the device, production large scale is easily realized, static pressure and diffusion resistance in the furnace are reduced, the vibration strength of the furnace body is reduced; reverse backmixing of the gas is inhibited, the mass transfer and heat transfer rate are improved, the contact time and contact surface of carbide slag and chlorine are ensured, the transformation rate of TiC is improved; and the device is beneficial to continuous operation of a chlorination furnace and is convenient in manufacturing, transformation and maintenance compared with the traditional chlorination furnace.
Owner:PANZHIHUA IRON & STEEL RES INST OF PANGANG GROUP
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products