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Небесная энциклопедия

Космические корабли и станции, автоматические КА и методы их проектирования, бортовые комплексы управления, системы и средства жизнеобеспечения, особенности технологии производства ракетно-космических систем

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Мониторинг СМИ

Мониторинг СМИ и социальных сетей. Сканирование интернета, новостных сайтов, специализированных контентных площадок на базе мессенджеров. Гибкие настройки фильтров и первоначальных источников.

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Применить Всего найдено 68. Отображено 68.
25-03-2009 дата публикации

Graphite base heatproof and heat insulating material and production technique thereof

Номер: CN0101391878A
Автор: WANG XUEGANG, PAN YUEQIU, YANG JINFENG, YANG SHENGCHUANG, ZHANG XIN, GENG SHIDA, XUEGANG WANG, YUEQIU PAN, JINFENG YANG, SHENGCHUANG YANG, XIN ZHANG, SHIDA GENG
Принадлежит:

The invention discloses a graphite-based temperature-resistant thermal insulation material and a production technology thereof. The material comprises the following components: 15-30wt percent of graphite powder, 18-28wt percent of sepiolite, 8-15wt percent of inorganic foaming agent, 5-20wt percent of inorganic adhesive, 6.4-32wt percent of high-quality cement, and other auxiliary agents as the rest; and the insulation material is obtained by stirring and mixing, molding, and curing. The invention also provides the production technology of the graphite-based temperature-resistant thermal insulation material, one is that after stirring, mixing and molding, the raw materials are naturally dried or dried and cured by using a drying oven; and the other is that after stirring, mixing and molding, the raw materials are sintered and cured. The invention has easily obtained raw materials with low price, simple production technology, convenient operation, good high-temperature resistant and thermal ...

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Номер записи: 1
26-05-2010 дата публикации

Metal matrix three-dimensional netlike carbon fiber composite material and manufacturing method thereof

Номер: CN0101713056A
Автор: Geng Shida
Принадлежит:

The invention relates to a metal matrix three-dimensional netlike carbon fiber composite material and a manufacturing method thereof. In the composite material, carbon fibers have three-dimensional netlike carbon fiber structural bodies which consist of a plurality of layers of carbon nano tubes; and the three-dimensional netlike carbon fiber structural bodies account for 40 to 60 percent of the total amount of the composite material, and the sintered metal accounts for 60 to 40 percent of the total amount of the composite material. The manufacturing method of the invention comprises the following steps: (1) mixing and stirring the three-dimensional netlike carbon fiber structural bodies, a cementing agent and a dispersant to form suspension; (2) drying the suspension to form a mixture; (3) compressing and molding the mixture; (4) hardening the compressed and molded body; (5) sintering the compressed and molded body at the high temperature to form a pre-molded body containing the carbon ...

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Номер записи: 2
26-10-2011 дата публикации

High-energy silicon-carbon composite negative electrode material for lithium ion battery and manufacturing process thereof

Номер: CN0101710617B
Автор: SHIDA GENG, GENG SHIDA
Принадлежит:

The invention relates to a high-energy silicon-carbon composite negative electrode material for a lithium ion battery and a manufacturing process thereof. The negative electrode material takes silicon powder or a mixture of the silicon powder and graphite powder as a core material, takes pyrolytic carbon as a shell material, and uses the shell material to coat the core material. The process for manufacturing the negative electrode material provided by the invention is characterized by performing nanoscale processing on mesophase pitch, ensuring that the nanoscale mesophase pitch is in a semi-liquid state, spraying the semi-liquid nanoscale mesophase pitch to the surface of a substrate of the silicon powder or the surface of a substrate of the mixture of the silicon powder and the graphitepowder through a nanometer spraying device to realize the uniform coating, and finally obtaining a negative electrode material for a secondary battery through conventional drying, carbonization and graphitization ...

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Номер записи: 3
23-11-2011 дата публикации

Layered manganese-based composite material for power-type lithium ion battery and preparation method thereof

Номер: CN0102255083A
Автор: SHIDA GENG, GENG SHIDA
Принадлежит:

The invention relates to a layered manganese-based composite material Li(MnxNiyCo1-x-y)O2 for power-type lithium ion batteries and a preparation method thereof; the cathode material adopts a lithium source, a manganese source, a nickel source, a cobalt source as raw materials, adopts a sodium salt as a medium; the molar ratio of Na:Mn:Ni:Co is 1:(0.5<=x<1.0):(0<=y<=0.5):(1-x-y), and the amount of substance of the mixed lithium source is 4-10 times the mole number of the sodium salt. The preparation method comprises the following steps: 1) weighing the lithium source, the manganese source, the nickel source, the cobalt source, and the sodium salt according to the above molar ratio respectively; 2) pulverizing the manganese source, the nickel source, and the cobalt source, dissolving in water, dropwisely adding excessive NH4OH into the solution to form a M(OH)2 coprecipitate, wherein M=(Mn, Ni and Co), performing suction filtration, washing to be neutral, and drying in an oven; 3) adding ...

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Номер записи: 4
19-05-2010 дата публикации

Graphite radiating module and manufacturing process thereof

Номер: CN0101710493A
Автор: Geng Shida
Принадлежит:

The invention discloses a graphite radiating module and a manufacturing process thereof. The manufacturing process is characterized by comprising the following steps: firstly, plating a metal clad layer with the thickness of 10 to 30 mu m on the surface of a graphite radiating fin; secondly, cleaning and drying a base and the radiating fin respectively; thirdly, putting a novel low-temperature tin cream and the graphite radiating fin into a groove of the metal base; and finally, obtaining the graphite radiating module by adopting a reflow soldering or gear shaping process. Compared with the prior art, the manufacturing process has the advantages that: a graphite sheet can be welded with a metal easily, the joint has strong weld strength and good heat conductivity, and a radiating device is firm and durable with good heat resistance, so a graphite material can be more widely and more conveniently applied to heat management devices of electronic components.

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Номер записи: 5
19-08-2009 дата публикации

Process for improving strength and flexibility of graphite plate

Номер: CN0101508595A
Автор: GENG SHIDA, SHIDA GENG
Принадлежит:

The invention relates to a technique for reinforcing graphite plate strength and enhancing graphite plate flexibility and comprises the following steps: (1) intercalation and mixing: firstly intercalating and oxidizing the crystalline flake graphite by strong oxidizing solution to prepare expandable graphite, and then mixing the prepared expandable graphite with alkaline inorganic fiber reinforced material evenly; (2) expanding and ingot-making: expanding the expandable graphite granules evenly mixed with the inorganic fiber reinforced material to obtain expanded coralgraphite, and rolling the expanded coralgraphite to form flake-shaped ingot material by machines; (3) soaking and drying: soaking the flake-shaped ingot material into soaking solution with low viscosity, and drying the soaked ingot material by a drying room equipped with heating and blowing equipment; and (4) coating and rolling: coating the surface of the graphite ingot material with a layer of coralgraphite after soaking ...

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Номер записи: 6
23-11-2011 дата публикации

Method for preparing poly(lithium acrylate) and method for preparing solid electrolyte membrane by mixing poly(lithium acrylate) and lithium salt

Номер: CN0102250269A
Автор: SHIDA GENG, GENG SHIDA
Принадлежит:

The invention relates to a method for preparing poly(lithium acrylate) and a method for preparing a solid electrolyte membrane by mixing the poly(lithium acrylate) and lithium salt. The method for preparing the poly(lithium acrylate) comprises the following steps of: mixing crylic acid and lithium hydroxide in a molar ratio of 2:1, reacting at room temperature for 2 to 10 hours in an alcoholic solution, and precipitating by using acetone to obtain lithium acrylate; and dissolving the lithium acrylate by using the alcoholic solution, pouring into a reaction kettle, introducing nitrogen at the temperature of between 50 and 80DEG C, stirring, dripping azodiisobutyronitrile and a solution of a precipitator, reacting for 2 to 10 hours, pouring a product into a beaker, performing suction filtration, washing a filter cake by using alcohol, and drying to obtain nano-scale poly(lithium acrylate) powder. The method for preparing the solid electrolyte membrane by mixing the poly(lithium acrylate) ...

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Номер записи: 7
26-05-2010 дата публикации

Thermally-conductive graphite interface material and production process thereof

Номер: CN0101712217A
Автор: SHIDA GENG, GENG SHIDA
Принадлежит:

The invention relates to a thermally-conductive graphite interface material and a production process thereof. The thermally-conductive graphite interface material is characterized by attaching films to at least one surface of a flexible graphite sheet by adhesives, coating high temperature resistant pressure-sensitive adhesives on the films and attaching separation materials to the other surfacesof the pressure-sensitive adhesives respectively. The production process comprises the procedures of coating, heating and drying, film covering, hot pressing, pressure-sensitive adhesive coating, release material sticking and rolling, etc. The film materials attached to the thermally-conductive graphite interface material on the one hand have the effect of surface insulation and on the other handcan effectively prevent the surface of the heat-exchange graphite material from being scratched, thereby obtaining the thermally-conductive interface material which is stable in use and has good thermal ...

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Номер записи: 8
22-09-2010 дата публикации

Nano-catalyst coating for micro-channel reactor for preparing hydrogen from methanol steam and preparation method thereof

Номер: CN0101837292A
Автор: GENG SHIDA, SHIDA GENG
Принадлежит:

The invention relates to a nano-catalyst coating for a micro-channel reactor for preparing hydrogen from methanol steam and a preparation method thereof. The micro-channel reactor of which the surface is uniformly coated with the nano-catalyst coating is prepared by mixing one or more of nano-scale CuO, ZnO, La2O3 and Ce2O3 and nano-scale Al2O3 to obtain a catalyst, depositing the nano-catalyst on the inner wall of the reactor by a spraying method and washing, drying and calcining in the prior art. The micro-channel reactor prepared by the invention is used for preparing the hydrogen from the methanol steam and greatly improves the conversion rate of the methanol and the selectivity of carbon dioxide.

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Номер записи: 9
13-04-2011 дата публикации

Novel high-energy Si-C composite negative electrode material of lithium ion battery and production technique thereof

Номер: CN0102013471A
Автор: Geng Shida
Принадлежит:

The invention relates to a novel high-energy Si-C composite negative electrode material of a lithium ion battery and a production technique thereof. The negative electrode material is a core-shell type three-layer composite material. The negative electrode material adopts nano silicon as the core, carbon nano tubes as the middle layer and pyrolysis carbon as the outermost layer. The capacitance of the negative electrode material is bigger than 800mAh/g, and the capacitance which is cyclically attenuated 500 times is smaller than 5%.

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Номер записи: 10
21-03-2012 дата публикации

Graphite radiating module and manufacturing process thereof

Номер: CN0101710493B
Автор: GENG SHIDA, SHIDA GENG
Принадлежит:

The invention discloses a graphite radiating module comprising graphite radiating fins and a metal substrate. A metal plating layer is coated on the outer surface of the graphite radiating fins. The invention is characterized in that the graphite radiating fins are formed by a flexible graphite laminated layer and a hard graphite composite sheet, the flexible graphite laminated layer which is dipped with resin or binding agent is clamped by the hard graphite composite sheet, and the graphite radiating fins coated with the metal plating layer and the metal substrate are combined through a reflow soldering process or a gear shaping process. Compared with the prior art, the invention ensures that it is easy to connect the graphite radiating fins and the metal substrate in high strength, the thermal conductivity is good, and the radiating device is firm and durable, the heat resistance is good, thus the graphite material can be widely and conveniently applied to a heat management device of ...

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Номер записи: 11
17-06-2009 дата публикации

Chemical processing method for preparing high quality inflatable graphite

Номер: CN0101456553A
Автор: YIN SHUNQING, WANG JINGQIN, GUO HUADE, ZHANG XIN, GENG SHIDA, SHUNQING YIN, JINGQIN WANG, HUADE GUO, XIN ZHANG, SHIDA GENG
Принадлежит:

The invention discloses a chemical treatment method for preparing high-quality expandable graphite. The method adopts concentrated sulfuric acid as an intercalator and hydrogen peroxide as a catalyst to prepare the high-quality expandable graphite under the vacuum condition. Because water has constant boiling point under the condition of constant vacuum degree, the reaction temperature can be well controlled and simultaneously stable reaction temperature can be maintained by utilizing vacuum to bring away heat exhausted during reaction in time. The method can obtain the high-quality expandable graphite of which the volatile component is less than 12 percent and the sulfur content is less than 1.5 percent, and the sulfur content can be less than 800 ppm after the high-quality expandable graphite is treated for 30 seconds at a high temperature of between 900 and 1,000 DEG C.

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Номер записи: 12
31-12-2008 дата публикации

Heat conducting insulating film material and method for manufacturing same

Номер: CN0101333314A
Автор: GENG SHIDA, SHIDA GENG
Принадлежит:

The invention relates to thermally conductive insulated film material and a fabrication method thereof. The material contains 8-20wt% of cubic boron nitride, 5-15wt% of nano zirconia, 2-10wt% of nano-molybdenum disulfide, and 60-85wt% of rubber material; wherein the rubber material is rubber material capable of withstanding rolling and biaxial tension, particularly polyisobutylene. The fabrication method is that: putting above materials based on mixture ratio into a reactor or a double screw extruder; mixing for 1-5h under 150-170 DEG C; molding through rolling at temperature of 100-250 DEG C and pressure of 100-300MPa; molding through stretching: firstly, fusing and extruding the sheet material or the thick film, then conducting biaxial stretching to the sheet material or the thick film; the film will be finished after certain cooling or heating treatment. The film is 0.01-3mm thick, with thermal conductivity of 5-20W/mK and volume resistivity of 0.1*10<5>m-1.7*10<5>m.

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Номер записи: 13
12-01-2011 дата публикации

Lithium-manganese phosphate anode material for lithium ion battery and preparation method thereof

Номер: CN0101944615A
Автор: SHIDA GENG, GENG SHIDA
Принадлежит:

The invention relates to a lithium-manganese phosphate anode material for a lithium ion battery and a preparation method thereof. The lithium-manganese phosphate anode material is prepared from a manganese source, a phosphorus source, a lithium source and a carbon source serving as raw materials, wherein the molar ratio of Mn:P:Li is 1:1:(1-1.05) and the carbon source is doped in an amount which is 0.1 to 50 percent based on the mass of a lithium-manganese phosphate product. The preparation method comprises the following steps of: 1) crushing the manganese source, the phosphorus source and the lithium source into powder with the particle size of 0.5 to 2mu m, 0.8 to 1.5mu m and 0.3 to 1.5mu m respectively, and weighing the manganese source, the phosphorus source and the lithium source according to the molar ratio; 2) after mixing the manganese source, the phosphorus source and the lithium source for 8 to 12 hours with stirring in the protective atmosphere of nitrogen or argon, doping the ...

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Номер записи: 14
17-08-2011 дата публикации

High heat conductivity reinforced graphite composite material and preparation method thereof

Номер: CN0101391894B
Автор: CHEN XUANFU, PAN YUEQIU, WANG JINGQIN, GENG SHIDA, YIN SHUNQING, YANG SHENGCHUANG, ZHANG XIN, LI BAOWU, YANG JINFENG, XUANFU CHEN, YUEQIU PAN, JINGQIN WANG, SHIDA GENG, SHUNQING YIN, SHENGCHUANG YANG, XIN ZHANG, BAOWU LI, JINFENG YANG
Принадлежит:

The invention relates to a reinforced graphite composite material with high heat conductivity and a preparation method thereof; the reinforced graphite composite material with high heat conductivity is formed by expanded graphite with the weight percentage of 69.5 percent to 89.5 percent and nano boron nitride with the weight percentage of 10.5 percent to 30.5 percent. The preparation method of the reinforced graphite composite material with high heat conductivity comprises the steps: (1) intercalation is carried out to natural crystalline flake graphite; (2) a product after the intercalationis washed by water until the pH value is more than 4; (3) the product after washing is dried for 0.5 to 2 hours at the temperature of 60 to 120 DEG C; (4) high temperature swelling processing is carried out at the temperature of 800 to 1100 DEG C, and the time is not more than one minute; (5) uniform material distribution is carried out to the expanded graphite; (6) the nano boron nitride is uniformly ...

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Номер записи: 15
20-07-2011 дата публикации

Nano-level ultra-high heat-conducting titanium-carbon composite material and preparation method thereof

Номер: CN0101191050B
Автор: GENG SHIDA, SHIDA GENG
Принадлежит:

The invention discloses nano-titanium carbon composite material with ultra-high thermal conductivity, which is characterized in that: the invention has the components by weight percentage: 40 - 85 percent of acidized expansive graphite, 5 - 40 percent of flake graphite nano power, 5 - 30 percent of mesophase nano carbon power and 5 - 30 percent of metal titanium nano powder. The production process is that: the four components are weighted and mixed under temperature of 300 to 500 DEG C in a high-temperature reaction furnace for 2 - 5 hours so as to obtain concentrated mixture solution used for making carbon at high temperature; the concentrated mixture experiences molding, rolling or ejaculating under pressure of 120 - 300MPa and at temperature of 300 - 500 DEG C, so as to form; then the formed material is carbonized under temperature 900 - 1000 DEG C for 1 - 12 hours, and graphitized under temperature of 2500 to 3000 DEG C for 1 - 12 hours. The invention has simple technique and low production ...

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Номер записи: 16
23-11-2011 дата публикации

Preparation method of nanometer high-purity barium titanate

Номер: CN0102249669A
Автор: SHIDA GENG, GENG SHIDA
Принадлежит:

The invention provides a preparation method of nanometer high-purity barium titanate, which comprises the following steps: mixing nanometer titanium tetrachloride, nanometer barium chloride, and oxalic acid according to a molar ratio of 1:1-1.15:2-2.3, reacting, washing and filtering the reaction precipitates, performing spin-drying and calcination, performing pulverization and nanometer grinding to prepare the nanometer high-purity barium titanate. The nanometer high-purity barium titanate prepared by the invention has high purity, good dispersibility, single morphology of powder particles, and reasonable granularity, and can be used as a dielectric of a laminated ceramic capacitor.

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Номер записи: 17
12-01-2011 дата публикации

High-temperature resistant insulated thermally conductive paint with low expansion coefficient

Номер: CN0101942260A
Автор: SHIDA GENG, GENG SHIDA
Принадлежит:

The invention relates to a high-temperature resistant insulated thermally conductive paint with a low expansion coefficient. The paint is characterized in that shell powder is used to provide the high-temperature resistance and the insulating property, cubic boron nitride is used to provide the thermal conductivity and the insulating property, molybdenum disulfide is used to fill in the gas holes, high-temperature resistant resin is used to provide the high-temperature resistance and the binding property; and the thermally conductive paint comprises the following components by weight percent: 25-45% of shell powder, 30-50% of high-temperature resistant resin, 1-10% of cubic boron nitride, 1-5% of molybdenum disulfide, 0-5% of curing agent and 1-5% of diluent. The raw material shell powder of the insulated thermally conductive paint has wide resources and low price, thus reducing the cost of the insulated thermally conductive paint; the product has good thermal conductivity, the coefficient ...

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Номер записи: 18
19-08-2009 дата публикации

Aluminium plating plumbago heat-conducting fin and method of preparing the same

Номер: CN0101508889A
Автор: GENG SHIDA, SHIDA GENG
Принадлежит:

The invention discloses an aluminum-plating graphite heat conducting strip, and an aluminum coat with the thickness of 0.005-0.015mm is evenly coated on the outer surface of the graphite heat conducting strip, thus solving the problem that the existing graphite cooling materials can not be welded with metal due to small strength. The invention also discloses a preparation method of the aluminum-plating graphite heat conducting strip, which comprises the following working procedures of cleaning process, coarsening process, drying process and organic aluminum liquid electroplating on the surface of the graphite heat conducting strip; and working procedures of sensitization and activation process and chemically plating a metal layer can also be added between the coarsening process working procedure and the drying process working procedure so as to improve the aluminum-electroplating quality. The aluminum-plating graphite conducting strip observes the advantages of light weight and good heat ...

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Номер записи: 19
23-11-2011 дата публикации

Manufacturing method for layered lithium manganate cathode material for lithium ion battery

Номер: CN0102249341A
Автор: SHIDA GENG, GENG SHIDA
Принадлежит:

The invention relates to a manufacturing method for a layered lithium manganate cathode material for a lithium ion battery, which adopts electrolytic manganese dioxide as a raw material, and comprises the following steps: performing high-temperature calcination to obtain manganese sesquioxide; mixing the manganese sesquioxide and anhydrous sodium carbonate according to a molar ratio of 1:1, performing sintering to obtain NaMnO2; weighing a lithium source and NaMnO2 according to a molar ratio of 6-10:1, filtering the mixed solution, washing the precipitates, drying to obtain the layered lithium manganate. The layered lithium manganate of a lithium ion battery cathode manufactured by the invention has a charge capacity of above 200 mAh/g, and a discharge capacity of above 180 mAh/g, and has a high first discharge capacity, and good cycle performance.

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Номер записи: 20
22-09-2010 дата публикации

Method for preparing solar-grade high-purity polycrystalline silicon

Номер: CN0101837979A
Автор: GENG SHIDA, SHIDA GENG
Принадлежит:

The invention provides a method for preparing solar-grade high-purity polycrystalline silicon and relates to a production method for preparing the solar-grade high-purity polycrystalline silicon by a physical-chemical method. The method comprises the following steps of: smashing metallurgical-grade industrial silicon serving as a raw material to obtain a silicon powder material of which the water content is less than 3 percent and the particle size is between 50 and 100 nanometers; leaching the silicon powder material in acid for two times; cleaning the acid-leached powder material; drying the cleaned powder material; smelting the dried powder material in vacuum; and directionally solidifying the smelted powder material to obtain a polycrystalline silicon product of which the purity is as high as over 99.999 percent. The preparation method has the advantages of easy operation, low power consumption, low production cost and easy realization of large-scale and industrial production.

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Номер записи: 21
15-12-2010 дата публикации

Anode material for lithium-ion secondary battery and production method thereof

Номер: CN0101916855A
Автор: SHIDA GENG, GENG SHIDA
Принадлежит:

The invention relates to an anode material for a lithium-ion secondary battery and a production method thereof. The anode material is prepared by wrapping a core material of a carbon nanotube with a silicon shell material. The production method of the anode material comprises the following steps of: (1) putting the silicon material and the carbon nanotube into a high-temperature reactor protectedby inert gases, and stirring the materials to blend the materials; (2) adjusting the temperature and the pressure of the reactor to make the shell material wrap the core material; (3) drying and carbonizing the wrapped material; and (4) graphitizing the carbonized wrapped material to obtain the uniform anode material. The invention also provides two production method of the carbon nanotube, wherein in one method, the carbon nanotube is prepared by kneading, mixing, pressurizing and molding a carbon material and an adhesive, carbonizing, graphitizing and crushing the molded product and then adjusting ...

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Номер записи: 22
12-01-2011 дата публикации

Composite material with high heat conduction and production method thereof

Номер: CN0101942291A
Автор: SHIDA GENG, GENG SHIDA
Принадлежит:

The invention relates to a composite material with high heat conduction and a production method thereof. The composite material comprises the following components in percentage by weight: 50 to 99 percent of nano-carbon tube serving as a main material and 1 to 50 percent of nano-aluminium powder serving as a bonding agent. The production method of the invention has a simple process. The produced composite material has the advantages of light mass, high strength, high heat conduction coefficient, application to radiation of electronic devices, good radiation effect, and capability of prolonging the service life of the electronic devices due to the high strength and reducing the weight of a product.

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Номер записи: 23
16-03-2011 дата публикации

Production method for directly forming anode of lithium ion battery

Номер: CN0101986444A
Автор: SHIDA GENG, GENG SHIDA
Принадлежит:

The invention relates to a production method for directly forming the anode of a lithium ion battery, which comprises the following steps: 1) mixing 40 to 80 weight percent of lithium ion battery anode active material, 10 to 50 percent of conductive fibers and 1 to 10 percent of adhesive in a reaction kettle, wherein the temperature is kept at 20 to 50 DEG C, the stirring speed is between 60 and 300r/min and the mixing is 1 to 10 hours; and 2) placing the mixture in a tablet machine, tabletting at a temperature of 70 to 120 DEG C and under a pressure of between 50 and 200 Mpa, and obtaining the one-step formed anode pole piece of the lithium ion battery. The method is simple in process. The pole piece, compared with the pole pieces produced by the conventional method, has the advantages of high mouldability, low density, small volume and the like. The electrode pole piece produced by the method can reduce the thickness of the pole piece effectively, thereby improving the diffusion coefficient ...

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Номер записи: 24
23-11-2011 дата публикации

Novel technology for enhancing anode and cathode pole piece structure of lithium ion battery

Номер: CN0102255073A
Автор: SHIDA GENG, GENG SHIDA
Принадлежит:

The invention relates to a novel technology for enhancing an anode and a cathode pole piece structures of a lithium ion battery. The technology of the invention is simple, can effectively enhance structure stabilization of pole pieces, prevent pulverization, peeling and powder falling of electrode active materials, and increase service life, safety performance and stability of a battery.

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Номер записи: 25
25-03-2009 дата публикации

Method for preparing solar stage high purify nano silica flour and device system thereof

Номер: CN0101391772A
Автор: YIN SHUNQING, ZHAO XING, LIU CEN, PAN YUEQIU, YANG JINFENG, YANG SHENGCHUANG, ZHANG XIN, GENG SHIDA, SHUNQING YIN, XING ZHAO, CEN LIU, YUEQIU PAN, JINFENG YANG, SHENGCHUANG YANG, XIN ZHANG, SHIDA GENG
Принадлежит:

The invention provides a method for preparing high-purity nanometer silica fume and an equipment system thereof; the method is a method which adopts a chemical purification method to prepare silica raw materials which provides high quality for the production of solar power grade polycrystalline silicon. The method uses metallurgical grade silicon as a raw material; by crushing, grinding, and drying, silica fume materials with the water content of less than 3 percent and the particle size of 50 to 100nm are obtained; through two-time acid leaching, washing, and drying, high-purity nanometer silica fume is obtained, wherein, the purity of the silicon is over 99.99 percent. In addition, the invention also provides an equipment system which is suitable for the method, mainly comprising a jet mill, a nano-grinding machine, spray-drying equipment, a metering feeder, a reaction kettle, ceramic membrane washing equipment, a purification material collector and the like. The equipment system has ...

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Номер записи: 26
31-12-2008 дата публикации

Conductive heat conducting material and method for manufacturing same

Номер: CN0101333320A
Автор: GENG SHIDA, SHIDA GENG
Принадлежит:

The invention relates to thermally and electrically conductive material and a fabrication method thereof. The thermally and electrically conductive material contains 10-30wt% expanded graphite, 8-20wt% crystalline flake graphite nano powder, 2-5wt%nano supramoly, and 45-80wt%plastic; wherein the expanded graphite is at granularity of 30-200 mesh and expansion multiple of 100-500 times and contains above 90% carbon, less than0.1% ash, less than 0.1% water, less than 300ppm sulphur and less than 0.01% iron; the flake graphite nano powder is at granularity of less than 100 nanometer and contains more than 90%carbon, less than 0.1% ash, less than 0.1%water, less than 300ppm sulphur and less than 0.01% iron; the nano supramoly D50 is 0.1-3 microns, with specific surface area more than 40m<2>/g; the plastic material contains polystyrene, acrylonitrile- butadiene- cinnamene, polyimide, makrolan, etc. In the fabrication process, above materials are put into a double screw extruder and are extruded ...

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Номер записи: 27
23-11-2011 дата публикации

Pole piece material of lithium ion battery positive electrode and negative electrode, and processing method thereof

Номер: CN0102255081A
Автор: SHIDA GENG, GENG SHIDA
Принадлежит:

The invention relates to a pole piece material of lithium ion battery positive electrode and negative electrode, and a processing method thereof. The pole piece material comprises, by mass, 40-80% of a nano-positive electrode and negative electrode active material, and 20-60% of an addition agent, wherein the addition agent comprises, by mass, 1-50% of nano-graphene and 50-99% of a positive electrode and negative electrode polar material. The processing method for the pole piece material is characterized by: mixing the nano-graphene and the positive electrode and negative electrode polar material according to the mass ratio, then mixing the resulting mixture and a solvent according to a volume ratio of the mixture to the solvent of 1:1-5, carrying out vibration through ultrasonic wave, followed by carrying out drying to prepare the addition agent for the nano-positive electrode and negative electrode active material; then mixing the nano-positive electrode and negative electrode active ...

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Номер записи: 28
31-08-2011 дата публикации

Novel titanium oxide for lithium-ion battery anode material and preparation method thereof

Номер: CN0102167395A
Автор: SHIDA GENG, GENG SHIDA
Принадлежит:

The invention relates to a novel titanium oxide for a lithium-ion battery anode material, and the novel titanium oxide has the chemical formula of H2Ti10O21. A preparation method of the novel titanium oxide comprises the following steps: 1) putting TiO2 powder and a hydroxide XOH solution into a reaction kettle, and intensely stirring for 30-50 hours at room temperature, thus obtaining a suspended turbid solution; 2) carrying out hydro-thermal reaction for more than 48 hours on the suspended turbid solution at the temperature of 160-220 DEG C by a hydro-thermal method, filtering, and drying for 12-24 hours at the temperature of 60-100 DEG C, thus obtaining titanate X2Ti5O11; 3) carrying out ball milling on the titanate X2Ti5O11 for 2-10 hours and then reacting with an acid solution, adjusting the pH value to be 7.0, filtering, carrying out ultrasonic washing on the product by distilled water until the product is neutral, and drying for 12-24 hours at the temperature of 60-100 DEG C, thus ...

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Номер записи: 29
12-01-2011 дата публикации

High-capacity silicon-copper/carbon composite cathode material of lithium ion battery and production process thereof

Номер: CN0101944592A
Автор: SHIDA GENG, GENG SHIDA
Принадлежит:

The invention relates to a high-capacity silicon-copper/carbon composite cathode material of a lithium ion battery and a production process. The production process comprises the following steps of: mixing nano-silicon powder, nano-copper powder, nano-asphalt and a carbon material in a nano high-temperature high-pressure steam blender to obtain a mixture; and smashing the mixture into powder with the particle size of 5 to 50mu m to obtain the cathode material of the lithium ion battery. The cathode material of the lithium ion battery prepared by the process has the advantages of capacity of more than 578 mAh/g and maintained capacity of over 80 percent after 300 times of circulation.

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Номер записи: 30
16-03-2011 дата публикации

Lithium ion battery cathode material containing three-dimensional conductive structure and preparation method thereof

Номер: CN0101986442A
Автор: SHIDA GENG, GENG SHIDA
Принадлежит:

The invention relates to a lithium ion battery cathode material containing a three-dimensional conductive structure and a preparation method thereof. Nano silicon powder is adopted as a core and is coated by a nano carbon material to form a core-containing conductor, and the core-containing conductor is coated by nano metal or metal oxide again, so lithium ion battery cathode material silicon nanoparticles containing the three-dimensional conductive structure are formed through the two-time coating; and the invention also relates to a preparation method for the cathode material. The lithium ion battery cathode material prepared by the method contains the three-dimensional conductive structure, has the capacity of more than 1,500mAh/g and keeps over 80 percent of the capacity after 500-time circulation.

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Номер записи: 31
16-03-2011 дата публикации

Direct forming production method for lithium ion battery cathode

Номер: CN0101986446A
Автор: SHIDA GENG, GENG SHIDA
Принадлежит:

The invention relates to a direct forming production method for a lithium ion battery cathode. The method comprises the following steps of: 1) mixing 30 to 70 percent of lithium ion battery cathode active substance, 10 to 50 percent of conductive fiber and 1 to 20 percent of adhesive in percentage by mass in a reaction kettle respectively, wherein the temperature is controlled between 20 and 50 DEG C, the stirring speed is 60 to 300 revolutions per minute and the mixing is performed for 1 to 10 hours; and 2) pressing the mixture in a piece press to obtain an integrally formed lithium ion battery cathode pole piece, wherein the temperature is controlled between 70 and 120 DEG C and the pressure is 50 to 200MPa. The method has simple process; compared with the pole piece produced by a traditional method, the pole piece has the advantages of good forming property, low density and small volume; and the method can greatly reduce the weight and the volume of the pole piece. The method for producing ...

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Номер записи: 32
22-04-2009 дата публикации

Carbon alloy base novel electronic circuit board and preparation technique thereof

Номер: CN0101415294A
Автор: GENG SHIDA, CHEN XUANFU, SHIDA GENG, XUANFU CHEN
Принадлежит:

The invention relates to a novel carbon-alloy-based electronic circuit board and a manufacturing process thereof. The electronic circuit board consists of a carbon alloy layer, an insulating coating and a metal circuit layer. The carbon alloy layer comprises at least one carbon alloy plate. The carbon content of the carbon alloy plate is not lower than 60%; thus, the carbon alloy plate has excellent properties such as high thermal conduction and light weight. The insulating coating is preferably made from heat-conducting ceramic dope or the insulating coating is made from temperature-resistant heavy polymer resin insulating dope. The metal circuit layer is made from a current-conducting membrane, the thickness of which is not smaller than 10 microns. The manufacturing process of the invention comprises that a carbon alloy block is firstly prepared and cut into carbon alloy plates; the surface of each carbon alloy plate is sprayed, brushed or dipped with a layer of insulating dope; and the ...

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Номер записи: 33
16-03-2011 дата публикации

High-energy composite cathode material for lithium ion battery and preparation method thereof

Номер: CN0101986447A
Автор: SHIDA GENG, GENG SHIDA
Принадлежит:

The invention relates to a high-energy composite cathode material for a lithium ion battery and a preparation method thereof. A carbon material is used as matrix in the cathode material, and an amorphous silicon film is prepared on the surface of the carbon material. The capacity of the prepared cathode material is more than 2,000mAh/g, and the attenuation of 500 periods is less than 3 percent.

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Номер записи: 34
22-09-2010 дата публикации

Multi-sulfur carbon nanofiber composite cathode material for lithium ion battery and manufacturing method

Номер: CN0101841036A
Автор: SHIDA GENG, GENG SHIDA
Принадлежит:

The invention relates to a multi-sulfur carbon nano-fiber composite cathode material for a lithium ion battery and a manufacturing method. Nano-sulfur particles are uniformly filled into carbon nano-tubes to form sulfur carbon nano-fibers; and then 5 to 80 weight percent of sulfur carbon nano-fibers, 5 to 30 weight percent of nano-iron powder, 5 to 30 weight percent of nano-lithium salt, 5 to 30 weight percent of nano-vandic salt and 5 to 30 weight percent of nano-phosphate are mixed and molded. The multi-sulfur carbon nano-fiber composite cathode material for the lithium ion battery prepared by the method has the capacity of higher than 150 mAh/g, and the capacity after the circulation of 50 times is kept over 92 percent.

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Номер записи: 35
26-03-2003 дата публикации

Optical-driver tray operation method

Номер: CN0001405655A
Автор: GENG SHIDA, SHIDA GENG
Принадлежит:

The method for operating the tray of the optical drive in the invention is modified so as to be able to hide the optical drive in the design, for example in the case of the computer possessing the hi-fi audio device. Thus, it is easier to design the contour of the case shell of the multiple usage information household electrical appliances, since the restriction is reduced.

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Номер записи: 36
19-05-2010 дата публикации

Graphitic cladding method by nano-scale mesophase asphalt

Номер: CN0101286556B
Автор: SHIDA GENG, GENG SHIDA
Принадлежит:

The invention relates to a preparation method for secondary battery cathode material, more particularly to a preparation method thereof which is formed by coating graphite by using nano-intermediate phase asphalt. The key point of the method is that nano-processing is carried out to the intermediate phase asphalt which is in semi-liquid state, the nano-intermediate phase asphalt in the semi-liquidstate is sprayed on the substrate surface of the graphite by a nano-spray device, then even coating is realized, finally, the secondary battery cathode material is obtained by the traditional processes of drying, carbonization and graphitization. The adoption of the method can improve the coating evenness and the spherical completeness in a greater degree, thus further reducing the first-time irreversible capacity of the graphite, improving the cyclical stability and having the advantages that the charging and discharging voltage of the secondary battery is low, the charging and discharging platform ...

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Номер записи: 37
26-03-2003 дата публикации

Computer with high-fidelity sounder

Номер: CN0001405656A
Автор: GENG SHIDA, SHIDA GENG
Принадлежит:

The computer possessing the hi-fi audio device comprises the computer which combines the options function and the broadcast control program, the audio unit, the input unit and the display unit. Thus,the invented device provides the functions of the computer for the user as well as the hi-fi audio with convenient operation for the user.

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Номер записи: 38
12-01-2011 дата публикации

Lithium titanate anode material for lithium ion batteries and preparation method thereof

Номер: CN0101944591A
Автор: SHIDA GENG, GENG SHIDA
Принадлежит:

The invention relates to a lithium titanate anode material for lithium ion batteries and a preparation method thereof. The anode material takes a lithium source, a titanium source and a carbon source as raw materials, wherein the mole ratio of Li to Ti is 4.0-4.3:5; and the doping amount of the carbon source is 1 to 30 percent based on the total mass of the lithium source and the titanium source. The preparation method comprises the following steps of: 1) weighing the lithium source, the titanium source and the carbon source according to the mole ratio and the mass ratio respectively; 2) dissolving the lithium source and the carbon source into a solvent, dissolving the titanium source into the same solvent, adding the solution of titanium source into the solution of lithium source and carbon source, and performing stirring and ultrasonic mixing; 3) adding ammonia water, controlling the pH value of the mixed solution, performing stirring and heating to volatilize the solvent and the ammonia ...

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Номер записи: 39
01-12-2010 дата публикации

Novel high heat conduction electronic circuit substrate and manufacturing technology thereof

Номер: CN0101902878A
Автор: GENG SHIDA, SHIDA GENG
Принадлежит:

The invention relates to a novel high heat conduction electronic circuit substrate and a manufacturing technology thereof. The electronic circuit substrate is a carbon alloy substrate and is shaped by mixing and sintering phenolic resin, aluminium powder, zinc powder and metal silica powder. The manufacturing technology of the novel high heat conduction electronic circuit substrate is characterized in that 40-70 wt% of the phenolic resin, 10-20 wt% of the aluminium powder the grain size of which is smaller than 5 mu m, 10-20 wt% of the metal silica powder and 10-20 wt% of the zinc powder are evenly mixed and put into a graphite container, and the graphite container is put into a vacuum graphitization furnace; under the vacuum environment, the vacuum graphitization furnace is heated for more than 12 hours at the temperature above 600 DEG C and graphitization treatment is carried out; and the cooled and shaped carbon alloy block is taken out from the graphite container to be cut or cropped ...

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Номер записи: 40
25-03-2009 дата публикации

High heat conductivity reinforced graphite composite material and preparation method thereof

Номер: CN0101391894A
Автор: YIN SHUNQING, CHEN XUANFU, WANG JINGQIN, LI BAOWU, PAN YUEQIU, YANG JINFENG, YANG SHENGCHUANG, ZHANG XIN, GENG SHIDA, SHUNQING YIN, XUANFU CHEN, JINGQIN WANG, BAOWU LI, YUEQIU PAN, JINFENG YANG, SHENGCHUANG YANG, XIN ZHANG, SHIDA GENG
Принадлежит:

The invention relates to a reinforced graphite composite material with high heat conductivity and a preparation method thereof; the reinforced graphite composite material with high heat conductivity is formed by expanded graphite with the weight percentage of 69.5 percent to 89.5 percent and nano boron nitride with the weight percentage of 10.5 percent to 30.5 percent. The preparation method of the reinforced graphite composite material with high heat conductivity comprises the steps: (1) intercalation is carried out to natural crystalline flake graphite; (2) a product after the intercalation is washed by water until the pH value is more than 4; (3) the product after washing is dried for 0.5 to 2 hours at the temperature of 60 to 120 DEG C; (4) high temperature swelling processing is carried out at the temperature of 800 to 1100 DEG C, and the time is not more than one minute; (5) uniform material distribution is carried out to the expanded graphite; (6) the nano boron nitride is uniformly ...

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Номер записи: 41
19-08-2009 дата публикации

Metal coating plumbago composite material and method of producing the same

Номер: CN0101508596A
Автор: GENG SHIDA, SHIDA GENG
Принадлежит:

The invention provides a metal plating (copper or nickel or zinc) graphite compound material and a preparation method thereof. One of the preparation method is degreasing and coarsening the surface of the graphite radiating material; soaking and washing the processed material in sensitizing solution and activating solution; and finally carrying out chemical plating of copper or nickel or zinc and the like in plating solution, drying and post-treatment to obtain the finish product. The other preparation method is carrying out degreasing, coarsening and other pre-processing on the surface of the graphite radiating material before electroplating, and then carrying out electroplating in electroplating solution to obtain the finish product. By both of the preparation methods provided by the invention, whether chemical plating or electroplating, a graphite board material which can beautify the graphite cooling plate, improve the strength of the graphite cooling plate and add the connecting mode ...

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Номер записи: 42
14-09-2011 дата публикации

Method for manufacturing environmentally-friendly paper

Номер: CN0102179866A
Автор: SHIDA GENG, GENG SHIDA
Принадлежит:

The invention relates to a method for manufacturing environmentally-friendly paper. The method comprises the following steps of: (1) adding a mixture including 60 to 90 percent of natural inorganic mineral powder, 5 to 18 percent of polyethylene, 4 to 20 percent of polypropylene and 1 to 2 percent of auxiliary agent in percentage by weight into a high-temperature mixer, and heating and stirring the mixture to form pulp; (2) putting the pulp into an extruder bin, delivering the pulp to a paper film manufacturing machine, and controlling the extrusion temperature at 100 to 300 DEG C to keep the pulp soft; (3) discharging from an adjustable discharge opening (100-200 microns) through an extruder with the width of 50-300 centimeters to form a film with thickness of 100 to 200 microns; (4) pressing the film into paper with thickness of 10 to 100 microns through a roller press; and (5) quickly freezing the paper for 10 minutes to 6 hours at a temperature of between 20 DEG C below zero and 0 through ...

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Номер записи: 43
15-10-2008 дата публикации

Graphitic cladding method by nano-scale mesophase asphalt

Номер: CN0101286556A
Автор: SHIDA GENG, GENG SHIDA
Принадлежит:

The invention relates to a preparation method for secondary battery cathode material, more particularly to a preparation method thereof which is formed by coating graphite by using nano-intermediate phase asphalt. The key point of the method is that nano-processing is carried out to the intermediate phase asphalt which is in semi-liquid state, the nano-intermediate phase asphalt in the semi-liquid state is sprayed on the substrate surface of the graphite by a nano-spray device, then even coating is realized, finally, the secondary battery cathode material is obtained by the traditional processes of drying, carbonization and graphitization. The adoption of the method can improve the coating evenness and the spherical completeness in a greater degree, thus further reducing the first-time irreversible capacity of the graphite, improving the cyclical stability and having the advantages that the charging and discharging voltage of the secondary battery is low, the charging and discharging platform ...

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Номер записи: 44
16-03-2011 дата публикации

Lithium sulfur battery anode material and preparation method thereof

Номер: CN0101986443A
Автор: SHIDA GENG, GENG SHIDA
Принадлежит:

The invention relates to a lithium sulfur battery anode material and a preparation method thereof. In the anode material, nano sulfur particles are uniformly filled in hollow carbon nano-tubes of a nano mesoporous carbon material, so that sulfur is tightly contacted with carbon. The thickness of each carbon tube in the nano mesoporous carbon material is 5 to 200nm, the pore diameter is 2 to 100nm and the granularity of the sulfur nano particles is 2 to 100nm. The capacity of the prepared lithium sulfur battery anode material is more than 1,800mAh/g, and the capacity is kept over 80 percent after 500 cycles.

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Номер записи: 45
12-01-2011 дата публикации

High-energy cobalt tin antimony titanium/carbon composite cathode material of lithium ion battery and production process

Номер: CN0101944611A
Автор: SHIDA GENG, GENG SHIDA
Принадлежит:

The invention relates to a high-energy cobalt tin antimony titanium/carbon composite cathode material of a lithium ion battery and a production process. Cobalt oxide, tin dioxide, diantimony trioxide and titanium oxide are mixed according to a proportion, and then the mixture is reduced into metal and coated on the surface of a carbon material so as to obtain the high-energy composite cathode material of the lithium ion battery. The electric capacity of the high-energy composite cathode material of the lithium ion battery is more than 365 mAh/g and over 80% of the capacity is maintained after1,000 cycles.

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Номер записи: 46
22-09-2010 дата публикации

Composite anode material of lithium iron phosphate and lithium vanadium phosphate and preparation method thereof

Номер: CN0101841021A
Автор: SHIDA GENG, GENG SHIDA
Принадлежит:

The invention relates to a composite anode material of lithium iron phosphate and lithium vanadium phosphate and a preparation method thereof. The composite anode material is prepared from a nanometer vanadium compound, a nanometer phosphorous compound, a nanometer lithium compound and a nanometer iron compound in a mol ratio of 1:1-1.5:1-2:1-1.5. The composite anode material of lithium iron phosphate and lithium vanadium phosphate prepared by the method has the advantages of good chemical performance and processing performance, simple preparation method and process and reaction device, and easily-controlled condition.

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Номер записи: 47
25-11-2009 дата публикации

Novel flexible thin-film battery and manufacturing method thereof

Номер: CN0101587954A
Автор: SHIDA GENG, GENG SHIDA
Принадлежит:

The invention discloses a novel flexible thin-film battery and a manufacturing method thereof. The flexible thin-film battery is characterized in that the thickness of the flexible thin-film battery is less than 0.5 millimeter; and the flexible thin-film battery has high capacitance, can be freely bended and made into different shapes according to actual needs. The thin-film battery takes two special rubber composite electro-conductive film layers as a battery current collector which is divided into leads and a polar membrane, wherein anode film layers of the thin-film battery is prepared by respectively attaching cathode materials to the outer surface of one polar membrane part of the current collector; cathode film layers are prepared by attaching anode materials to the outer surface of another polar membrane part of the current collector; and a functional polymeric material having relatively strong hydroscopic property absorbs electrolyte as an electrolyte isolated layer; and then an ...

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Номер записи: 48
22-09-2010 дата публикации

High-energy compound material used for cathode of lithium ion battery and process for preparing same

Номер: CN0101841035A
Автор: SHIDA GENG, GENG SHIDA
Принадлежит:

The invention relates to a process for manufacturing a high-energy compound material used for a cathode of a lithium ion battery. The process for manufacturing high-energy compound material comprises the following steps of: 1, mixing: simultaneously placing the core body material and the shell body material in a high-temperature reaction kettle protected by inert gases, heating the reaction kettle and stirring the mixture; 2, coating: by controlling the temperature and the pressure, coating the shell body material on the core body material; 3, carbonizing: perform vacuum drying on the coated material, and sending the coated material to a high-temperature carbonization vacuum furnace for carbonizing; and 4, graphitizing: sending the carbonized coated material to a high-temperature graphitization vacuum furnace for graphitizing to obtain the uniform compound material. When the high-energy compound material prepared by the process of the invention is used for the secondary battery, the specific ...

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Номер записи: 49
26-05-2010 дата публикации

Method for preparing high-purity lithium carbonate and other available byproducts from salt lake brine

Номер: CN0101712481A
Автор: Geng Shida
Принадлежит:

The invention relates to a method for preparing high-purity lithium carbonate and other available byproducts from salt lake brine. The method comprises the following steps: (1) separating potassium and sodium by exposing salt in a salt field, (2) separating boron by an acidification method, (3) separating magnesium by a sedimentation method, (4) separating calcium by the sedimentation method, (5) preparing lithium chloride, and (6) preparing the lithium carbonate. The preparation method of the invention can purify the potassium, sodium, boron, magnesium and calcium ions respectively besides obtaining the lithium carbonate product of which the purity is over 99.5 percent so as to fully utilize the salt lake brine resource.

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Номер записи: 50
22-09-2010 дата публикации

Nano-electrode for preparing hydrogen by decomposing water by using solar energy and preparation method thereof

Номер: CN0101838818A
Автор: SHIDA GENG, GENG SHIDA
Принадлежит:

The invention relates to a nano-electrode for preparing hydrogen by decomposing water by using solar energy and a preparation method thereof. The nano-electrode is formed by coating nano-titanium dioxide on the surface of conductive glass; and the conductive glass is tin dioxide conductive glass or zinc oxide conductive glass or graphite conductive glass. The preparation method of the nano-electrode of the invention comprises the following steps of: 1) ultrasonically cleaning the conductive glass by using water and ethanol and then drying the conductive glass; and 2) reacting tetra-n-butyl titanate or titanium tetrachloride serving as a precursor and cetyl trimethyl ammonium bromide serving as a template with sodium hydroxide, wherein the mol ratio of the tetra-n-butyl titanate or titanium tetrachloride to the cetyl trimethyl ammonium bromide to the sodium hydroxide is 1-3:0.5-1.2:0.5-1.2, placing the dried conductive glass into solution, taking the conductive glass out after standing reaction ...

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Номер записи: 51
01-12-2010 дата публикации

Lithium battery LiFePO4 anode material with internal three-dimensional conductive structure and preparation method thereof

Номер: CN0101901898A
Автор: SHIDA GENG, GENG SHIDA
Принадлежит:

The invention relates to a lithium battery LiFePO4 anode material with an internal three-dimensional conductive structure and a preparation method thereof. In the lithium battery LiFePO4 anode material, LiFePO4 anode micron particles form a core; a nanometer carbon material wraps the LiFePO4 nano particles to form cored conductors, the shell layers and cores of the cored conductors form first conductive layers; a nanometer metal or a metal oxide wraps the core-containing conductor again; shells wrapped again form second conductive layers; the LiFePO4 anode micron particles are formed by two times of wrapping; and the second conductive layers and the first conductive layers of the LiFePO4 anode micron particles form a three-dimensional network together. The lithium battery LiFePO4 anode material with the internal three-dimensional conductive structure is formed by a two-time wrapping process. The capacitance of the material is more than 150mAh/g; and after 200 times of circulation, the capacitance ...

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Номер записи: 52
14-03-2012 дата публикации

Nano-electrode for preparing hydrogen by decomposing water by using solar energy and preparation method thereof

Номер: CN0101838818B
Автор: SHIDA GENG, GENG SHIDA
Принадлежит:

The invention relates to a nano-electrode for preparing hydrogen by decomposing water by using solar energy and a preparation method thereof. The nano-electrode is formed by coating nano-titanium dioxide on the surface of conductive glass; and the conductive glass is tin dioxide conductive glass or zinc oxide conductive glass or graphite conductive glass. The preparation method of the nano-electrode of the invention comprises the following steps of: 1) ultrasonically cleaning the conductive glass by using water and ethanol and then drying the conductive glass; and 2) reacting tetra-n-butyl titanate or titanium tetrachloride serving as a precursor and cetyl trimethyl ammonium bromide serving as a template with sodium hydroxide, wherein the mol ratio of the tetra-n-butyl titanate or titanium tetrachloride to the cetyl trimethyl ammonium bromide to the sodium hydroxide is 1-3:0.5-1.2:0.5-1.2, placing the dried conductive glass into solution, taking the conductive glass out after standing reaction ...

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Номер записи: 53
01-12-2010 дата публикации

Method for preparing nano-scale phosphate

Номер: CN0101898755A
Автор: GENG SHIDA, SHIDA GENG
Принадлежит:

The invention relates to a method for preparing nano-scale phosphate, which comprises the following steps of: (1) preparing mixed liquid, namely reacting one or more of metal compounds of sodium, potassium, zinc, calcium and magnesium with phosphoric acid in the stoichiometric molar ratio of a reaction equation, and adding an appropriate amount of mixed liquid of organic carboxylic acid and water in a weight ratio of 20-80:80-20; and (2) performing nano-crystallization, namely delivering the mixed liquid to a nano-nozzle, finely spraying solution sprayed from the nano-nozzle at a high speed to a reactor at the temperature of higher than 100 DEG C to evaporate the organic carboxylic acid and the water from the solution so as to obtain nano-scale phosphate particles, wherein the mixed liquid in the step (1) can also be prepared by adding the organic carboxylic acid and the water into one or more of metal phosphate compounds of the sodium, potassium, zinc, calcium and magnesium. The nano-scale ...

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Номер записи: 54
08-06-2011 дата публикации

Novel electronic circuit substrate and manufacturing process thereof

Номер: CN0102088819A
Автор: GENG SHIDA, SHIDA GENG
Принадлежит:

The invention relates to a novel electronic circuit substrate and a manufacturing process thereof. The novel electronic circuit substrate is a graphite substrate and is formed by mixing one of or a mixture of flake graphite and expanded graphite and one of or a mixture of phenolic resin and epoxy resin. The substrate manufacturing process given by the invention comprises the following steps of: (1) mixing 40-80% by mass of one of or the mixture of the flake graphite and the expanded graphite and 20-60% by mass of one of or the mixture of the phenolic resin and the epoxy resin in a reaction kettle for 2 hours to 3 hours, and controlling the temperature to be 80-100 DEG C; (2) forming on a hot press or a roll squeezer by adopting a mould pressing or roll pressing mode after mixing, and controlling the temperature to be 100-200 DEG C, the time to be 2-10 hours and the pressure to be 50-300MPa to obtain a graphite plate or a graphite flake; and (3) cutting or cropping the graphite plate into ...

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Номер записи: 55
23-11-2011 дата публикации

Method and special high-temperature continuous vacuum ignition furnace for efficiently preparing grapheme

Номер: CN0102249219A
Автор: GENG SHIDA, SHIDA GENG
Принадлежит:

The invention relates to a method and a special high-temperature continuous vacuum ignition furnace for efficiently preparing grapheme. The method comprises the following steps: (1) preparing graphite oxide; and (2) placing the graphite oxide in the 'special high-temperature continuous vacuum ignition furnace' in the invention for heating so that graphite is expanded, oxidizing the expanded graphite, placing the oxidized graphite in an environment filled with a mixed gas of pure oxygen and hydrogen, and igniting for explosion so that the graphite is separated from nano-graphene so as to finally obtain a large amount of the nano-graphene. The continuous vacuum ignition furnace adopted in the method sequentially comprises a nitrogen replacement cavity, a heating cavity, an oxygen replacement cavity, an oxidation cavity and a controllable explosion cavity, wherein, insulated doors are arranged among the cavities; and a crucible conveying belt and angle pushers convey crucibles loaded with ...

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Номер записи: 56
23-11-2011 дата публикации

Novel lithium ion battery anode cathode particle alloy metal cladding method

Номер: CN0102255074A
Автор: SHIDA GENG, GENG SHIDA
Принадлежит:

The invention relates to a novel lithium ion battery anode cathode particle alloy metal cladding method. The anode particle cladding process comprises the following steps: mixing aluminum salt powder and silver nitrate powder, adding water or other solvents, adding a carbohydrate carbon source, mixing with anode material particles by a nanometer spraying way in inert atmosphere, wherein the weight part ratio of each mixture is 1:0.2-1:0.2-1:0.2-1:0.1-0.5, mixing for 0.5-10 hours, heating to 100-1000 DEG C, preserving the temperature for 0.5-10 hours so as to uniformly clad alloy metal on anode material particle surfaces. The cathode particle cladding process comprises the following steps: mixing copper salt powder and silver nitrate powder, adding water or other solvents, adding a carbohydrate carbon source, mixing with cathode material particles by a nanometer spraying way in inert atmosphere, wherein the weight part ratio of each mixture is 1:0.2-1:0.2-1:0.2-1:0.1-0.5, mixing for 0.5- ...

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Номер записи: 57
31-12-2008 дата публикации

High temperature resistant and high-efficiency thermal insulation wall material and method for manufacturing same

Номер: CN0101333111A
Автор: GENG SHIDA, SHIDA GENG
Принадлежит:

The invention relates to a high-temperature-resistant, high-performance thermal-insulation wall material and a manufacturing method; the material composition and the weight percentage are as follows: 10-40% of expandable graphite, 10-30% of thermoplastic resin, 5-25% of thermosetting resin, 5-15% of micro-powder graphite, 5-25% of micro-powder Na2SiO3, 2-8% of carbon fiber, and 3-7% of aluminum hydroxide, wherein, the thermoplastic resin is made from polyurethane and polystyrene; the thermosetting resin comprises epoxy resin and phenolic resin. The manufacturing method of the material comprises the following steps: putting the mixed raw material into a reactor for mixing; pouring the mixed material into a small-size mold for hot-press molding; putting the formed sheet material into a large-size high-pressure mold and then putting the mold into a high-temperature furnace to realize moment expansion under the protection of inert gas; finally carbonizing and graphitizing the material. The ...

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Номер записи: 58
01-12-2010 дата публикации

Nano lithium iron phosphate material for lithium battery anode and manufacturing method thereof

Номер: CN0101901899A
Автор: SHIDA GENG, GENG SHIDA
Принадлежит:

The invention relates to a lithium iron phosphate material for a lithium battery anode and a manufacturing method thereof. The nano lithium iron phosphate material is manufactured by the following steps of: mixing a high valent metal, a carbon source, a nano phosphorus source, a nano iron source and a nano lithium source according to a proportion, adding the mixture into anhydrous hydrocarbon liquid of C4 to C12 and 5 to 10 percent acid liquid in a ratio of 1: 0.01-1, mixing the mixture to form slurry in a vacuum state, feeding the slurry into a high-temperature high-pressure reaction kettle filled with inert gas for protection through a pipeline, heating and stirring the slurry, properly controlling the heating rate and the stirring rate to obtain nano lithium iron phosphate aggregation powder, cooling the reaction kettle to room temperature, controlling the vacuum degree, pressing the powder to obtain a lump object, roasting the lump object in a high-strength magnetic field tunnel furnace ...

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Номер записи: 59
31-12-2008 дата публикации

Heat-conducting insulation material and method for manufacturing same

Номер: CN0101333434A
Автор: GENG SHIDA, SHIDA GENG
Принадлежит:

The invention relates to thermally conductive insulating material and a preparation thereof. The thermally conductive insulating material contains(based on weight percentage)8-20%of cubic boron nitride, 5-10%of nano zirconia, 1-5%of nano supramoly, 1-5%of nano crystalline flake graphite powder or intermediate phase nano carbon powder and 60-85%of plastic. When the thermally conductive insulating material is used for manufacturing electric appliance enclosures, the method includes the following steps: putting the materials at above percentage into a vacuum drying chamber or a common oven for drying for 1-12h under 50-100DEG C; putting the dried materials into a reactor or a double screw extruder injection molding machine for mixing for 2-5min under 140-290DEG C; molding through mould pressing, extrusion or injection at the pressure of 100-200MPa; finally, packing the product through a vacuum packing machine. The thermally conductive insulating material can be directly used as material for ...

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Номер записи: 60
25-03-2009 дата публикации

Method for preparing high purity quartz sand

Номер: CN0101391871A
Автор: YANG SHENGCHUANG, PAN YUEQIU, YANG JINFENG, ZHANG XIN, GENG SHIDA, SHENGCHUANG YANG, YUEQIU PAN, JINFENG YANG, XIN ZHANG, SHIDA GENG
Принадлежит:

The invention relates to a preparation method of high-purity quartz sand. The method adopts quartz sand as basic raw material, removes ore foreign bodies on the surface of sand grains or inside the grains by carrying out roasting and water-granulating to blocky materials, removes certain soluble and flammable impurities in the quartz sand by carrying out the roasting and water-granulating again, and finally removes most of the ore foreign bodies by acid leaching to obtain the high-purity quartz sand. The quartz sand prepared by the method can be used for producing polysilicon materials.

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Номер записи: 61
22-04-2009 дата публикации

Graphite-based novel electronic circuit board and preparation technique thereof

Номер: CN0101415295A
Автор: GENG SHIDA, CHEN XUANFU, SHIDA GENG, XUANFU CHEN
Принадлежит:

The invention relates to a novel graphite-based electronic circuit board and a manufacturing process thereof. The electronic circuit board comprises at least a graphite base layer, an insulating coating and a metal circuit layer. The graphite layer comprises at least one layer of graphite plate. The graphite plate is moulded by crystalline flake graphite after expanding or the graphite plate is moulded by mixing heavy polymers, such as asphalt. The insulating coating is preferably made from kubonit dope or the insulating coating is made from temperature-resistant heavy polymer resin insulating dope. The metal circuit layer is made from a current-conducting membrane, thickness of which is not smaller than 10 microns. The manufacturing process of the invention comprises that natural crystalline flake graphite is moulded by intercalation expanding or is mould by mixing heavy polymers, such as asphalt; graphite plates are then obtained by cutting; the surface of each graphite plate is sprayed ...

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Номер записи: 62
14-09-2011 дата публикации

Preparation method of superconductive, thermally-conductive, ultrahigh-strength graphene composite film

Номер: CN0102180461A
Автор: GENG SHIDA, SHIDA GENG
Принадлежит:

The invention relates to a preparation method of a superconductive, thermally-conductive, ultrahigh-strength graphene composite film, which comprises the following steps: step 1, mixing 10%-80% by mass of nanometer graphene and 20%-90% by mass of liquid or powdery bridging carbon groups in a nitrogen-filling mixer at room temperature for 1-10 hours; step 2, pumping the mixed materials into a heating box by a vacuum pump, heating the materials to 100-500 DEG C for 1-20 hours; step 3, after heating, allowing the mixed materials to fall freely into a material distribution zone, uniformly spreading out the mixed materials by a scraper and a material-distributing roller, feeding the materials into a pre-press roller with a controlled pressure of 0.1-1.0 Mpa, pressing the materials tightly with several groups of press rollers so as to pull out a composite film with a thickness less than 100 microns; step 4, scanning the composite film line by line through a laser beam, an electron beam or an ...

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Номер записи: 63
12-01-2011 дата публикации

Lithium ferrous silicate anode material for high-performance lithium ion battery and preparation method thereof

Номер: CN0101944594A
Автор: SHIDA GENG, GENG SHIDA
Принадлежит:

The invention discloses a lithium ferrous silicate anode material for a high-performance lithium ion battery and a preparation method thereof. A lithium source, an iron source, a silicon source and a carbon source are used as raw materials in the anode material; the molar ratio of Li: Fe: Si is (1.98-2.05): (0.98-1.02): 1; and the amount of the carbon source is 1 to 30 percent of the total mass of the mixture of the lithium source, the iron source and the silicon source. The preparation method comprises the following steps of: 1) weighing the lithium source, the iron source, the silicon source and the carbon source according to the molar ratio and the amount ratio respectively; 2) crushing the silicon source, and dispersing the crushed silicon source into water to form suspension with stirring and ultrasonic; 3) dissolving the iron source and the lithium source into the water, and adding a reducing agent into the solution with stirring and ultrasonic to reduce Fe3+ in the solution into ...

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Номер записи: 64
04-06-2008 дата публикации

Nano-level ultra-high heat-conducting titanium-carbon composite material and preparation method thereof

Номер: CN0101191050A
Автор: GENG SHIDA, SHIDA GENG
Принадлежит:

The invention discloses nano-titanium carbon composite material with ultra-high thermal conductivity, which is characterized in that: the invention has the components by weight percentage: 40 - 85 percent of acidized expansive graphite, 5 - 40 percent of flake graphite nano power, 5 - 30 percent of mesophase nano carbon power and 5 - 30 percent of metal titanium nano powder. The production process is that: the four components are weighted and mixed under temperature of 300 to 500 DEG C in a high-temperature reaction furnace for 2 - 5 hours so as to obtain concentrated mixture solution used for making carbon at high temperature; the concentrated mixture experiences molding, rolling or ejaculating under pressure of 120 - 300MPa and at temperature of 300 - 500 DEG C, so as to form; then the formed material is carbonized under temperature 900 - 1000 DEG C for 1 - 12 hours, and graphitized under temperature of 2500 to 3000 DEG C for 1 - 12 hours. The invention has simple technique and low production ...

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Номер записи: 65
20-07-2011 дата публикации

Double-layer structure pole plate of positive electrode and negative electrode of lithium ion battery and manufacturing method thereof

Номер: CN0102130322A
Автор: SHIDA GENG, GENG SHIDA
Принадлежит:

The invention relates to a double-layer structure pole plate of a positive electrode and a negative electrode of a lithium ion battery. In the pole plate, an inner-layer material and an outer-layer material are arranged on the two surfaces of an aluminum sheet or a copper sheet in sequence; lithium ions can be physically absorbed or desorbed on the surface of the inner-layer material; and lithium ions can be absorbed or desorbed on the surface of the outer-layer material to form an electric double layer. The mass percentage ratio of the inner-layer material and the outer-layer material is (60-40%): (40-60%). The double-layer structure pole plate has the advantages that the processing technique is simple, and the pole plate material of the positive electrode and the negative electrode of the lithium ion battery obtained by processing can effectively increase the reaction activity of the positive electrode and the negative electrode of the lithium ion battery, so that the high-current charging ...

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Номер записи: 66
31-12-2008 дата публикации

Negative pole material of bendable cell and manufacturing method therefor

Номер: CN0101335343A
Автор: SHIDA GENG, GENG SHIDA
Принадлежит:

The invention relates to a bendable battery cathode material and a preparation method thereof. The components and the weight percentage range of the material are: expanded graphite of 10 to 30 percent, flake graphite nanometer powder of 8 to 20 percent, nano-molybdenum of 2 to 5 percent, and rubber material of 45 to 80 percent, wherein, the rubber material is one that can be rolled or two-way stretched, in particular to polyisobutylene. The preparation method of the invention is: the raw material is weighed according to the weight percentage, put into a reaction kettle or a double-screw extruder, and mixed together for 1 to 5 hours at the temperature of 150 to 170 DEG C, and goes through roll forming process with roll temperature of 100 to 250 DEG C and working pressure of 100 to 300MPa; stretch forming process is carried out, namely, a sheet or a thick film are extruded by melting firstly, two-way stretch is carried out on the sheet or the thick film at the temperature of 100 to 150 DEG ...

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Номер записи: 67
23-05-2012 дата публикации

Graphite heat radiator

Номер: CN0101711104B
Автор: GENG SHIDA, SHIDA GENG
Принадлежит:

The invention relates to a graphite heat radiator, which consists of a graphite sheet, a metal base, a heat pipe, an upper metal cover and a fan. The graphite heat radiator is characterized in that a metal connecting piece is also arranged in the graphite heat radiator, wherein the metal connecting piece not only is fixedly connected with the graphite sheet, but also is fixedly connected with the metal base or is fixedly connected with the metal base through the heat pipe. The metal connecting piece with good heat-conducting property arranged in the graphite heat radiator not only fixedly connects the graphite sheet to the heat pipe or fixedly connects the graphite sheet to the metal base, but also plays a role in heat conduction. The structure design of the graphite heat radiator can be conveniently changed only by changing the shape design of the metal connecting piece of the graphite heat radiator so that the graphite heat radiator can adapt to various heat source environments. The graphite ...

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Номер записи: 68