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219results about How to "High content of active substances" patented technology

Slow-release matrix pellets and the production thereof

Slow-release matrix pellets with a spherical or lenticular shape and uniform maximum diameters in the range from 0.5 to 4 mm, composed ofa) 0.1-87% by weight of at least one biologically active compound,b) 5-50% by weight of at least one water-insoluble polymer,c) 5-45% by weight of at least one lipophilic component as plasticizer for polymer b),d) 3-40% by weight of a natural or semisynthetic gel former,e) 0-50% by weight of one or more conventional formulation aids.
Owner:BASF AG

Preparation method of silicon and carbon-coated graphene composite cathode material

ActiveCN103050666ARealize in situ restorationThe preparation process is simple, convenient and practicalMaterial nanotechnologyCell electrodesCarbon coatedStructural stability
The invention discloses a preparation method of a silicon and carbon-coated graphene composite cathode material. The technical problem to be solved is to enhance the electronic conductivity of the silicon-based cathode material, buffer the volume effect produced in the process of deintercalation of the lithium in the silicon-based cathode material and enhance the structure stability in the circulation process of the material at the same time. The material is prepared by using a spray drying-thermally decomposing treatment process in the invention. The preparation method comprises the following steps of: evenly dispersing nano silicon and graphite micro powder in a dispersion solution of oxidized graphene, carrying out thermal treatment under an inert protection atmosphere after spray drying, subsequently cooling along a furnace to obtain the silicon and carbon-coated graphene composite cathode material. The extra binder does not need to add in the process of manufacturing balls in the invention and the outer oxidized graphene is thermally reduced in situ to graphene in the thermal treatment process of the composite precursor, so that the process is simple and easy to operate; and the practical degree is high. The prepared composite material has the advantages of great reversible capacity, designable capacity, good cycling performance and high-current discharging performance, high tap density and the like.
Owner:CENT SOUTH UNIV

Phosphate material having mesoporous structure for lithium secondary batteries and preparation method thereof

The invention relates to a phosphate material having a mesoporous structure for lithium secondary batteries and a preparation method thereof. The material having a mesoporous structure is secondary particles which have a mesoporous spherical or spheroid shape and are formed by the agglomeration of primary particles; the chemical composition of the material having the mesoporous structure is represented by the formula of LixAaMmBbPOzNn; the average particle diameter of the primary particles is 10nm to 1mum, the average particle diameter of the secondary particles is 100nm to 50mum, the average pore diameter of mesopores is 2 to 500nm; and the material having the mesoporous structure also comprises a layer of 2 to 100nm thick carbon coated outside the secondary particles and on the inner walls of the mesopores, wherein the content of the carbon accounts for 1 to 20 weight percent of the total weight of a substrate. The material is prepared by the steps of: firstly preparing pure-phase phosphate LiMPO4 or doped LiMPO4 sol; secondly, forming dry gel through heat treatment; and finally, forming the agglomerate secondary particles through sintering at high temperature. The phosphate material having the mesoporous structure can be directly used in secondary lithium batteries as an anode active material and can also be used by being mixed with the prior anode material as an additive. The material having the mesoporous structure can improve the rate performance and energy density of the prior anode material and batteries. The secondary lithium batteries containing the phosphate material having the mesoporous structure has high power density and high safety.
Owner:INST OF PHYSICS - CHINESE ACAD OF SCI

Chinese wolfberry ferment preparation method

The invention relates to a Chinese wolfberry ferment preparation method, aims to provide Chinese wolfberry ferment prepared by Chinese wolfberry treatment, enzymolysis, glucose reduction fermentation, lactic acid fermentation, ultrasonic low temperature concentration, blending, drying, crushing and other processes, , the method has the advantages of simple process, less addition agent and no residue, by the use of Chinese wolfberry defective products, the active substance content in the Chinese wolfberry ferment product can be promoted, the waste of resources can be reduced, the purposes of the comprehensive utilization of resources and improvement of the product added value can be achieved, and good economic and environmental benefits are obtained.
Owner:青海柴馥有机枸杞有限公司

Cation acrylamide copolymer water-in-water emulsion and its preparation method

The invention relates to a cationic acrylamide copolymer aqueous emulsion-water and the method for preparing the same. The compound comprises 5-25 wt% of cationic polymer, 1.0-15 wt% of polymer stabilizer and 15-32 wt% inorganic salt. Said active cationic polymer comprises 72.8-90 mol% of at least one water-soluble monomer (A), 10-26 mol% of at least one cationic monomer (B), and 0.2-1.0 mol% of at least one hydrophobic monomer (C), and said polymer is prepared through free radical polymerization with pH being 3-8. The monomer (A) (B) possesses general formula respectively, monomer (c) is C1-C8 dialkyl ester of itaconic acid or C1-C32 alkyl ester of acroleic acid or C1-C32 alkyl ester or diene monomer of methacrylic acid. The method is multi-stage, and it can reduce polymerization system viscosity, increase active material content and stability of aqueous emulsion-in-water, which is characterized by high concentration, low cost, good fluidity and easiness for treatment.
Owner:QINGDAO UNIV OF SCI & TECH

Solid micro-emulsion, preparation method and application thereof

The invention discloses a solid micro-emulsion which comprises: (a) an oil phase, which is composed of one or more oil-soluble cosmetic-effect components; (b) a mixed surfactant, which is composed of one or more non-ionic surfactants; and (c) a mixed carrier, which is composed of one or more water-soluble carriers. The HLB value of the mixed surfactant is the weighted average value of the HLB values of the surfactants in the mixed surfactant, the HLB value of the mixed surfactant being 8-18. The mass ratio of the mixed surfactant to the oil phase is (1:1) - (1:3). The content of the mixed carrier is 1-50 wt% in the solid micro-emulsion. The solid micro-emulsion, compared with conventional micro-emulsions, is higher in content of carried active substances, and is more convenient to store and transport.
Owner:广东创美抗衰老研究有限公司

Vaccine composition

A vaccine composition which comprises an immnunologically active substance embedded in microparticles essentially consisting of starch having an amylopectin content exceeding 85% by weight, of which at least 80% by weight has an average molecular weight within the range of 10-10000 kDa, and without any covalent chemical cross-linking between the starch molecules. A process for preparing such vaccine composition.
Owner:PACIRA PHARMA INC

Quaternary ammonium salt in ester-amines and synthetic method

In this invention, fatly acid and ethanolamine are proportioned and under ester-aminated, then reacting with dimethyl carbonate to produce ester-amine type quaternary ammonium salt. Said invention p rocess of synthesis has high transforming rate, excellent selectivity, high content of active matter in said product, utilizing no pollution type raw material of dimethyl carbonate, so, no remaining of poison in product, lowering quaternary ammonium salt pollution to environment and to human health.
Owner:CHINA RES INST OF DAILY CHEM IND

Ethoxylate ester quaternary ammonium salt and its preparation method

An ethoxylate ester quaternary ammonium salt has chemical structural formula as follows, wherein R is C6-C22 saturated or unsaturated straight-chain or branched-chain alkyl; X represents an alkylated anion; n is the number of hydroxyethyl in the ester quaternary ammonium salt, and is 0, 2 or 3; n+b=3; b is 1, 2 or 3; and m is the number of ethoxyl, and is 1-30. The method has advantages of high conversion rate and good selectivity. The product has high content of active matters.
Owner:CHINA RES INST OF DAILY CHEM IND

Composite leather greasing agent and preparation method thereof

InactiveCN101760570AHigh content of active substancesExcellent comprehensive fatliquoring performanceLeather impregnationVegetable oilAlkylphosphate
The invention provides a composite leather greasing agent used for a leather greasing work procedure and a preparation method thereof. The composite greasing agent comprises two ingredients: alkyl phosphate and disodium sulfosuccinate. The preparation method comprises the following steps: making hydroxylated animal and vegetable oil and modifiers thereof take phosphorylation reaction with phosphorus pentoxide; then, making obtained materials take monoester reaction with maleic anhydride; and next, making obtained materials take sulphitation reaction with sodium bisulfite to obtain the composite leather greasing agent with the two ingredients of alkyl phosphate and disodium sulfosuccinate. The composite leather greasing agent has the characteristics of high active matter content, strong combination capability with leather and good comprehensive greasing performance. The production process of the composite leather greasing agent is simple, and the discharge of the three wastes does not occur in the production process.
Owner:WENZHOU UNIVERSITY

Sheet-like shampoo product

InactiveCN106726634AAvoid the problem of excessive water consumptionReduce storage costsCosmetic preparationsHair cosmeticsBetaineVitamin C
The invention provides a sheet-like shampoo product. The sheet-like shampoo product comprises the following components in percentage by weight: 10 to 20 percent of a film-forming agent, 10 to 40 percent of sodium lauryl sulfate, 1 to 10 percent of polyoxyethylene fatty alcohol sodium sulfate, 1 to 10 percent of fatty acid diethanol amide, 1 to 5 percent of polyalcohol, 1 to 5 percent of polyethylene glycol-methyl glucose ester, 0 to 10 percent of coconut oil amide propyl betaine, 0 to 10 percent of coconut oil betaine, 10 to 30 percent of sodium lauroyl glutamate, 0 to 5 percent of sodium citrate, 0.1 to 1 percent of vitamin E, 0.1 to 1 percent of vitamin C, 0.1 to 1 percent of panthenol, 0 to 10 percent of traditional Chinese medicine extracts and the balance of deionized water. The sheet-like shampoo product is excellent and reasonable in formula and convenient to use, the problem that water resource is consumed excessively because the shampoo product contains a large amount of water is solved, the product volume is shortened, a large amount of transportation cost and warehousing cost are reduced, and environmental pollution can be reduced.
Owner:GUANGZHOU LANJIEBAO BIOTECH CO LTD

Method for synthesizing dual-long-chain ester based quaternary ammonium salt

The invention relates to a method for synthesizing a dual-long-chain ester based quaternary ammonium salt, which belongs to the technical field of surfactants. The method comprises the following steps: using long-chain alkyl fatty acid to react with N-methyl diethanolamine and triethanolamine to prepare long-chain carboxylic acid based tertiary amine; and performing alkylation on the long-chain carboxylic acid based tertiary amine to prepare the dual-long-chain ester based quaternary ammonium salt. The method uses two steps of esterification reaction and continuous production, thus the raw material conversion rate is high, the selectivity is good, and the obtained product has high active matter content, light color, excellent biodegradability, low ecological toxicity and excellent environmental compatibility; and the product can improve the grade of compounding a product, is easy to be prepared into a high-concentration product, reduces the production and packing cost, and is convenient to use. The dual-long-chain ester based quaternary ammonium salt is a cationic surfactant, and the using method thereof in various aspects of fabric softeners, leather softeners, bactericides and the like is same as the using method of other cationic surfactants.
Owner:JIANGNAN UNIV

Gel composite positive pole plate, preparation method thereof and method for preparing all-solid-state lithium battery

The invention discloses a gel composite positive pole plate. The gel composite positive pole plate is characterized by comprising a positive active substance, a conductive agent, a gel electrolyte, abinding agent and a current collector, wherein the binding agent, the conductive agent, the gel electrolyte and the positive active substance form a layered structure on a surface of the current collector, and the conductive agent and the gel electrolyte are uniformly dispersed in the positive active substrate and are associated via the binding agent. The invention also discloses a method for preparing the gel composite positive pole plate and a method for preparing an all-solid-state lithium battery.
Owner:QINGTAO KUNSHAN ENERGY DEV CO LTD

Synthesis process of ester quaternary ammonium salt

The present invention is continuous solvent-free process of synthesizing ester-base quaternary ammonium salt, and features that at certain temperature, long chain tert amine carboxylate and alkylating agent as materials are mixed and reacted to produce ester-base quaternary ammonium salt in the structure as shown. The synthesis process of the present invention has continuous production, short reaction period, low power consumption, high conversion rate and high selectivity and the product with high active component content may be used as fabric softening agent, leather softening agent, disinfectant, etc.
Owner:SOLVAY ZHANGJIAGANG SPECIALTY CHEM

Method for preparing seaweed extracting solution and rotation basket extracting device

The invention provides a method for preparing a seaweed extracting solution and a rotation basket extracting device. The preparing method includes the steps that seaweed and activated carbon are thrown into a plurality of medicine baskets, and meanwhile solvent is added into a tank body; a motor is started, a center shaft is made to rotate, hence, the medicine baskets are driven to make centrifugal movement, and chemical substances included in the seaweed are extracted through the solvent; after extracting is completed, the extracting solution is discharged from a liquid medicine outlet; the extracting solution is settled through kieselguhr; supernate is collected, microfiltration is conducted through a ceramic membrane, permeate liquid is collected, and accordingly the seaweed extracting solution is obtained. The rotation basket extracting device comprises the tank body, the center shaft and the medicine baskets. The center shaft penetrates in the center of the tank body in a rotating mode, the medicine baskets are arranged on the center shaft, solvent inlets and a medicine change opening are formed in the top of the tank body, and the liquid medicine outlet is formed in the center of the bottom of the tank body. The method has the advantages of being simple in process, short in period, environmentally friendly and safe. The content of active substances of the prepared extracting solution is high, the number of varieties of active ingredients is large, and stability is achieved.
Owner:SHANGHAI FOREST CABIN BIOLOGICAL TECH

Porous manganese phosphate lithium-carbon composite material and preparation method

The invention discloses a porous manganese phosphate lithium-carbon composite material and a preparation method. The composite material comprises a manganese phosphate lithium material and 1%-15wt% of carbon element, a composition general formula of the manganese phosphate lithium material is LiMnxFe1-xPO4, wherein 0.6<=x<=1, and the particle size of the composite material is 1-50 mum, a plurality of holes with 3-50nm of aperture is provided in the composite material, the material thickness between the adjacent holes is 20-70nm, and the preparation method comprises the following steps: mixing porous Mn2P2O7 with ferric salt, a lithium source, phosphate and a carbon source, performing ball milling by a wet method, drying to prepare a reaction precursor, under protective atmosphere, and performing constant temperature calcination on the reaction precursor for 1-30h at the temperature of 500-900 DEG C to obtain the target product. The porous manganese phosphate lithium-carbon composite material has the advantages that 1) the composite material is the micron order manganese phosphate lithium material having nano holes, when the composite material is taken as lithium ion batteries cathode materials for using, the composite material has high specific capacity, rate capability and tap density; and 2) the composite material has the advantages of simple preparation method, low carbon content and high active substance content.
Owner:中科致良新能源材料(浙江)有限公司

Method for preparing spherical anion surfactant

The invention provides a method for preparing a spherical anion surfactant with little pollution, low forming temperature, short time and good physicochemical property. The method comprises the stepsof adopting a granulating process of extruding and rolling to mix anion surfactant main material and auxiliary granulating material, conveying the mixture into an extruder consisting of a screw feeder, an extruding cylinder and a mesh plate, and processing the mixture to prepare round bar-shaped materials with different lengths; conveying the round bar-shaped materials into a rolling granulator; cutting the round bar-shaped materials into the short cylindrical material grains with consistent lengths by breaking teeth on a rotating centrifugal rotary table of the rolling granulator, subsequently kneading all materials into spherical grains under the cooperation of the centrifugal rotary table, the grains, the granulator walls and the gas among the granulator walls, subsequently drying and cooling the spherical grains to obtain the spherical anion surfactant with the solid content of 95-99.5% by weight percentage. The method is applicable to the production of surfactant.
Owner:SINOLIGHT CHEM

Tea bran shampoo and preparation method thereof

The invention discloses a tea bran shampoo and a preparation method thereof and belongs to the technical field of bath goods. The tea bran shampoo comprises the following raw materials by weight percent: 5-20 percent of tea bran powder, 8-15 percent of sodium alcohol ether sulphate, 1-2 percent of sodium dodecyl sulfate, 2-3 percent of cocoamidopropyl betaine, 1.5-2.5 percent of pearlescent slurry, 1-2 percent of coconut oil diethanol amide, 0.15-0.25 percent of ethylenediaminetetraacetic acid disodium salt, 0.5-1.5 percent of guar hydroxypropyltrimonium chloride, 0.1-0.3 percent of citric acid, 0.2-0.4 percent of an essence, 0.1-0.3 percent of methylchloroisothiazolinone, 0.,05-0.15 percent of ethylparaben, 3-7 percent of carbomer and 45.6-77.4 percent of deionized water. The tea bran shampoo has the effects of removing dandruff, relieving itching, de-oiling, sterilizing, preventing hair loss and white hair and restoring damaged hair and also has obvious hair blacking and re-growing functions.
Owner:LONGSHENG VARIOUS NATTIES AUTONOMOUS COUNTYAGRI PROD BUYING & SELLING FARMERS PROFESSIONAL COOP

Concentrated laundry liquid suitable for machine washing, and preparation method thereof

InactiveCN104031756ASignificant compound antifoamSignificant foam breaking effectSurface-active detergent compositionsDetergent compounding agentsLaundryFatty alcohol
The invention relates to a concentrated laundry liquid suitable for machine washing, and a preparation method thereof. The above washing agent composition comprises 8-14wt% of dodecylbenzene sulfonic acid, 9-12wt% of fatty alcohol polyoxyethylene ether (7-9), 6-10wt% of sodium ethoxylated (7) fatty acid (C18) methyl ester sulfonate, 2-10wt% of sodium alpha-alkenyl sulfonate, 1-3wt% of lauric acid, 1-2wt% of caprylyl / capryl glucoside, 3wt% of ethanol, 5wt% of propylene glycol, 1-5wt% of sodium citrate, 1-3wt% of an anti-redeposition agent Acusol845, a small amount of an essence and an antiseptic, and the balance water. The concentrated laundry liquid is slightly alkaline, is suitable for the machine washing of fabrics comprising cottons, hemps, synthetic fibers and the like, and has the characteristics of low temperature stability, strong decontamination force, low foaming, easy rinsing high cost performance and the like; and the concentrated laundry liquid has the advantages of high enrichment, no phosphorus, no fluorescent brightening agent, good biodegradability and environmental protection.
Owner:LAFANG CHINA CO LTD

Method for preparing fatty acyl potassium glycine and composition containing surfactant

The invention discloses a method for preparing fatty acyl potassium glycine and a composition containing the surfactant, and belongs to the technical field of fine chemical engineering. According to the technique for synthesizing a fatty acyl potassium glycine type surfactant, fatty acid methyl ester of a natural fat resource is taken as a raw material for synthesizing the fatty acyl potassium glycine type surfactant, that is, fatty acid methyl ester and potassium glycine react in the presence of a phase shifting catalyst PEG2000 to prepare fatty acyl potassium glycine and the composition containing the surfactant. The method is high in raw material utilization rate, high in yield, high in active matter content, high in surface activity, simple in synthesis route, and free of environment pollution and is a green synthesis technique, and products can be directly used without being separated or purified. The invention further discloses a surfactant composition containing the fatty acyl potassium glycine.
Owner:BEIJING TECHNOLOGY AND BUSINESS UNIVERSITY

Method for processing health-care yellow rice wine added with lotus seed skin grinding powder

The invention relates to a method for processing health-care yellow rice wine added with lotus seed skin grinding powder. The method is a technology for preparing the health-care yellow rice wine by using the lotus seed skin grinding powder as an auxiliary material and rice as a main material on the basis of the traditional process of the yellow rice wine. The lotus seed skin grinding powder comprises a large amount of nutritional substances such as phenol, procyanidine, flavone and alkaloid; in the wine making process, the nutritional ingredients of the lotus seeds are extracted and utilized to the maximum degree through the processes of steaming, fermentation, long-time alcohol dissolution and the like; in the yellow rice wine prepared by the method, the lotus procyanidine content of reaches 25 mg / L to 100 mg / L, the flavonoid content is 100 mg / L to 500 mg / L and the alcohol content reaches 11 percent to 14 percent; and the yellow rice wine has the characteristics of low sugar, good flavor and high content of lotus active substances.
Owner:HUNAN AGRICULTURAL UNIV

Preparation method of compound fertilizer dedicated to ginkgo trees by using blue-green algae as base material

The invention relates to a preparation method of a compound fertilizer dedicated to ginkgo trees, in particular to a preparation method of the compound fertilizer dedicated to ginkgo trees by using blue-green algae as a base material, belonging to the technical field of fertilizers. The preparation method comprises the steps of squeezing blue-green algae to remove excessive moisture to obtain wet blue-green algae, sequentially adding water, cellulase and protease in parts by weight, mixing uniformly, heating, carrying out enzymolysis, and performing enzyme deactivation to obtain enzymatic hydrolysate; adding potassium sulphate in the enzymatic hydrolysate, heating, keeping the temperature for 3-5h, cooling, and carrying out vacuum concentration to obtain concentrated solution; adding sodium humate, potassium humate, ammonium bicarbonate, phosphogypsum, potassium citrate, zinc sulfate, amino acid, polyvinyl alcohol, cellulose and calcium carbide in the concentrated solution, stirring uniformly, spray-drying, and then granulating to obtain a product. The compound fertilizer dedicated to the ginkgo trees can enable the ginkgo trees to have higher stems and more leaves and have high content of active substances.
Owner:南通市通州区五接农业机电管理站有限公司

Method for synthesizing cetyl diphenyl ether sodium disulfonate and use

The invention relates to a synthesizing method and usage of hexadecyl diphenyl ether sodium disulfonate, mainly solving the problems that existing production methods lead to bad degradation capability, high cost and low active matter content and that petroleum sulfonate which is a component of existing oil-displacing agents is not durable in hard water. The invention is characterized in that, in the synthesizing method of the hexadecyl diphenyl ether sodium disulfonate, high-purity cetene and diphenyl ether which are produced through the ethylene oligomerization process undergo alkylation to generate hexadecyl diphenyl ether and then undergo sulfonation to generate hexadecyl diphenyl ether disulfonic acid, and finally neutralization is carried out to obtain the hexadecyl diphenyl ether sodium disulfonate. The hexadecyl diphenyl ether sodium disulfonate is used as a surface active agent of the oil-displacing agent for tertiary oil extraction. The surface active agent can be compounded to form an oil-displacing surface active agent system, and stable ultralow interfacial tension can be formed on the oil-water interface.
Owner:DAQING OILFIELD CO LTD

Method for preparing Chinese caterpillar fungus extracting concentrated liquid and application thereof

The invention belongs to the medicine, processing and healthcare food technical field of cordyceps sinensis, particularly relating to a preparation method of the cordyceps sinensis extractive concentrated solution got by hirsrtella sinensis or hirsutella hepialid and applications of the cordyceps sinensis extractive concentrated solution in preparation of various preparation forms of medicine or healthcare products for strengthening and regulating immunity; thereby the solution can be applied for treating deficiency in lung and kidney, cancers and for helping strengthening immunity after themotherapy. The preparation of the invention is that the hirsrtella sinensis is fermented to produce cordyceps sinensis which is extracted respectively by ethanol, water and zymohydrolysis and then the extractive is condensed into concentrated solution which is produced into various preparation forms by spray-drying or directly produced into soft capsules after sterilization, and then the finished product is prepared well after packing and inspecting. No additive is added into the finished product which is composed of the extractive concentrated solution by 100 per cent. The various preparations prepared by the extractive concentrated solution of cordyceps sinensis all have multiple functions of restoring the deficiency in lung and kidney, strengthening immunity and enhancing resistance and have the function of regulating and steadying the immunological system of a human body, not only applicable to sub-healthy people for regular health care but also evident in efficacy for people who takes organ transplantation, cancer radiotherapy and chemotherapy, pneumonia, hepatitis, chronic nephritis and valetudinarianism.
Owner:叶天任

Method for preparing oil-acyl lysine sodium and composition comprising surfactant through phase-transfer catalysis

The invention discloses a method for preparing oil-acyl lysine sodium and a composition comprising the surfactant through phase-transfer catalysis, belonging to the technical field of fine chemical engineering. According to the technology for synthesizing an oil-acyl lysine sodium type surfactant provided by the invention, oil and lysine sodium are reacted to generate the oil-acyl lysine sodium in the presence of phase-transfer catalysts PEG8000. The method is high in yield and high in raw material utilization rate, the phase-transfer catalysts PEG8000 refer to matrix raw materials and active ingredients of detergents, cosmetics and medicines and has the effects of regulating the viscosity, stabilizing and moisturizing, the product does not need to be separated and purified and can be directly used, the product is a composition of acyl lysine sodium homolog of different carbon chains, the surfactant combination principle is met, the synergistic effect can be achieved, the content of active matters is high, the surface activity is high, the synthetic route is simple, the pollutants are avoided, and the method is an environment-friendly synthetic method. The invention also discloses a surfactant composition comprising the oil-acyl lysine sodium.
Owner:BEIJING TECHNOLOGY AND BUSINESS UNIVERSITY

3d track alloy sulfide material as well as preparation method and application thereof

The invention relates to the technical field of battery materials. The invention relates to a sulfide material, in particular to a 3d track alloy sulfide material and a preparation method and application thereof. The chemical formula of the 3d orbital alloy sulfide material is Fe0. 5CoxNiyS2, the preparation method comprises the steps of crushing, melting, hydrothermal reaction and high-temperature purification, and the 3d orbital alloy sulfide material is used for preparing a positive electrode for a thermal battery, a positive electrode for a lithium-sulfur battery and a negative electrode for a sodium-ion battery.
Owner:GUIZHOU MEILING POWER SUPPLY CO LTD

Carbon nanotube polymer lithium ion battery and preparation method thereof

The invention discloses a carbon nanotube polymer lithium ion battery and a preparation method thereof. Based on mass percent of the carbon nanotube polymer lithium ion battery, an active substance of a positive electrode of the lithium ion battery is prepared from 50-60% of carbon nanometer coated lithium cobalt oxide and 40-50% of carbon nanometer lithium nickel manganese cobalt. The preparation method comprises the following steps of taking NMP as a solvent, and preparing the active substance of the positive electrode, a super-conduction carbon nanotube and polyvinylidene fluoride into a slurry; applying the slurry onto an aluminum-foil substrate to obtain a positive pole plate; applying a ceramic material layer onto isolation paper; and preparing the coated positive pole plate, the isolation paper, a negative pole plate and an electrolyte into the lithium ion battery according to a conventional method. Compared with a traditional lithium ion battery, the lithium ion battery disclosed by the invention has higher gram capacity and energy density, has more residual capacity after used for repeatedly charging / discharging for 500 times, and has longer cycle service lifetime.
Owner:深圳市言九电子科技有限公司

Lithium-sulfur battery composite positive electrode active material and preparation and application thereof

The invention relates to a novel lithium-sulfur battery positive electrode material. More specifically, the invention relates to a lithium-sulfur battery composite positive electrode active material.The material comprises a plurality of template etching holes, porous carbon with a through hole structure, a vanadium selenide nanosheet filled in a pore cavity of the porous carbon in situ, and an elemental sulfur source. The invention also provides preparation and application of the material. According to the material of the invention, the vanadium selenide material serving as a conductive substrate in the charge-discharge interval of the lithium-sulfur battery can contribute a part of capacity through intercalation reaction; meanwhile, the vanadium selenide material can greatly improve theproblem of large liquid absorption capacity of a traditional porous carbon substrate material, and the liquid sulfur ratio of the lithium-sulfur battery is remarkably reduced; and, in addition, vanadium selenide can improve the adsorption capacity of the carbon substrate to polysulfide and efficiently catalyze conversion of polysulfide, and the shuttle effect is inhibited in cooperation with porous carbon. Therefore, the lithium-sulfur battery according to the present invention has high energy density and good high-rate discharge, and reprents excellent discharge capacity and lifespan characteristics.
Owner:CENT SOUTH UNIV

Preparation for panaxoside-Rd aqueous solution of propylene glycol and new application thereof in inflammation resistance, immune suppression and organ transplant rejection resistance

The invention relates to preparation for panaxoside-Rd aqueous solution of propylene glycol and new application thereof in inflammation resistance, immune suppression and organ transplant rejection resistance. The invention provides panaxoside-Rd solution and a preparation method thereof. The solution is formed by dissolving the panaxoside-Rd in propylene glycol aqueous solution containing 50 to 100 volume percent of propylene glycol, and the content of the panaxoside-Rd is 1 to 100 mg / ml, wherein the volume percentage of the propylene glycol is based on the total volume of the aqueous solution of propylene glycol. The invention further provides a medicinal composition containing the solution of the invention and a preparation method thereof, and application of the panaxoside-Rd or the panaxoside-Rd solution of the invention in preparing a medicament for inflammation resistance, immune suppression and / or organ transplant rejection resistance.
Owner:LANZHOU UNIVERSITY +1
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