Настройки

Укажите год
-

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

Подробнее
-

Мониторинг СМИ

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

Подробнее

Форма поиска

Поддерживает ввод нескольких поисковых фраз (по одной на строку). При поиске обеспечивает поддержку морфологии русского и английского языка
Ведите корректный номера.
Ведите корректный номера.
Ведите корректный номера.
Ведите корректный номера.
Укажите год
Укажите год

Применить Всего найдено 33. Отображено 33.
03-06-2015 дата публикации

A preparing method of a lithium ion battery composite separating membrane

Номер: CN104681762A
Принадлежит:

A preparing method of a lithium ion battery composite separating membrane is disclosed. A common PP or PE separating membrane is coated with an oxide coating, an aramid fiber resin coating and a PVDF-HFP copolymer layer to obtain the composite separating membrane. The composite separating membrane enhances mechanical performance and heat resistance of the separating membrane and enhances safety performance of batteries.

Подробнее
18-03-2015 дата публикации

High-energy and high-safety lithium ion power battery

Номер: CN104425795A
Принадлежит:

The invention discloses a high-energy and high-safety lithium ion power battery. Two sides of a cell are respectively provided with an anti-puncturing safety structure, each anti-puncturing safety structure sequentially comprises a PET plate, an aluminum foil, a PET plate, a copper foil and a PET plate from outside to inside by overlapping, wherein the aluminum foil is connected with a positive electrode leading-out terminal by virtue of a positive electrode lug, and the copper foil is connected with a negative electrode leading-out terminal by virtue of a negative electrode lug. A positive electrode active material in a positive electrode material on a positive plate is a large-particle monocrystal high-nickel ternary material with particle diameter of 1-2 micrometers, and has a molecular formula of LimNiXCoYMnZO2, wherein X is not less than 0.6 and not more than 0.8, y is not less than 0.1 and not more than 0.2, Z is not less than 0.1 and not more than 0.2, X+Y+Z=1.0, and m is more than ...

Подробнее
21-05-2014 дата публикации

Lithium ion power battery overcharge protection electrolyte and lithium ion power battery prepared from same

Номер: CN103811812A
Автор: YAN HONG, LYU HAOJIE
Принадлежит:

The invention relates to the technical field of lithium ion batteries, and provides a lithium ion power battery overcharge protection electrolyte and a lithium ion power battery prepared from the same. The problems that the existing lithium ion power battery has poor thermal stability, is sensitive to water and hydrofluoric acid, and especially has serious safety hazards due to overcharge are solved. The electrolyte is composed of an electrolyte lithium salt, an organic solvent, an overcharge protection additive, a film forming agent and a functional additive. The electrolyte lithium salt comprises lithium hexafluorophosphate and Li2B12F12, wherein the molar concentration of the lithium hexafluorophosphate and the Li2B12F12 in the organic solvent is respectively 0.6 to 1.3mol/L and 0.1 to 0.5mol/L. According to the invention, the electrolyte uses multiple overcharge protection, thus the safety performance of the lithium ion battery is greatly improved; and the lithium ion power battery ...

Подробнее
21-05-2014 дата публикации

Flame retardant electrolyte applied to lithium ion power battery and lithium ion power battery prepared from same

Номер: CN103811811A
Автор: YAN HONG, LYU HAOJIE
Принадлежит:

The invention relates to the technical field of lithium ion batteries, and in particular relates to a flame retardant electrolyte applied to a lithium ion power battery and a lithium ion power battery prepared from the same. The problem that in order to improve the safety of the lithium ion battery, the used electrolyte produces a serious negative impact on the battery of the existing lithium ion power battery electrolyte is solved. The electrolyte is composed of an organic solvent, an electrolyte, a film forming additive and a flame retardant additive. The molar concentration of the electrolyte in the organic solvent is 0.6 to 1.3mol/L. The weight percentages of the film forming additive and the flame retardant additive in the electrolyte are respectively 2 to 5% and 5 to 8%. The flame retardant additive is a cyclic trimer phosphazene compound. According to the invention, the flame retardant has the advantages of high boiling point and low viscosity; by combined with other components, ...

Подробнее
12-11-2014 дата публикации

A high-energy-density power battery

Номер: CN104143637A
Принадлежит:

The invention discloses a high-energy-density power battery, and overcomes the problem of the low energy density of power batteries in the prior art. The power battery comprises a cathode and an anode. The cathode comprises a cathode current collector and a cathode material covering the cathode current collector. The anode comprises an anode current collector and an anode material covering the anode current collector. The cathode material comprises following components by mass: 70-96% of a cathode active material, 1-10% of a cathode adhesive and 1-20% of a cathode conductive agent. The anode material comprises following components by mass: 80-94% of an anode active material, 4-16% of an anode adhesive and 1-12% of an anode conductive agent. The cathode active material is a lithium-rich manganese-based sosoloid material. The anode active material is multi-wall carbon nanotubes supporting nanometer silicon carbide. The power battery has characteristics of high energy density, excellent cycle ...

Подробнее
25-03-2015 дата публикации

Lithium titanate battery based on lithium-enriched manganese anode and charging method thereof

Номер: CN104466230A
Принадлежит:

The invention discloses a lithium titanate battery based on a lithium-enriched manganese anode and a charging method thereof, and is designed to solve the problem of inflation of the lithium titanate battery, increase energy density of the lithium titanate battery and solve the security problem caused by irreversible lithium in the first charge and discharge of the lithium-enriched manganese battery. The anode material of lithium titanate battery comprises a lithium-enriched manganese base, a binder and a conductive agent. The lithium-enriched manganese base has a general formula of xLi2MnO3.(1-x) LiMO2, wherein M is more than one selected from Co, Mn and Ni, and x satisfies the relation of 0 Подробнее

29-08-2023 дата публикации

Foundation settlement detection device, vehicle and method for realizing multi-point rapid detection

Номер: CN116659453A
Принадлежит:

The invention discloses a foundation settlement detection device, a vehicle and a method for realizing multi-point rapid detection. The detection device comprises a fast-assembly base, an installation stand column, two installation supports arranged at intervals in the height direction of the installation stand column, camera detection modules arranged corresponding to the installation supports, and a binocular stereo photogrammetry system in communication connection with the camera detection modules. The two cameras form an annotation object digital image information acquisition module to shoot an on-site annotation object in real time to obtain annotation object digital image information; and the binocular stereo photogrammetry system obtains three-dimensional space coordinate information of the marker according to the digital image information of the marker, and calculates to obtain a height relationship between the measurement system and the marker, relative height information of the ...

Подробнее
22-08-2023 дата публикации

Lesion detection method for track and tunnel

Номер: CN116626040A
Принадлежит:

The invention provides a track and tunnel lesion detection method, which specifically comprises the following steps: carrying out camera calibration on a camera, and determining a corresponding relation between points in a track and a tunnel and pixel positions in a camera imaging image; performing continuous frame shooting on the track and the tunnel through a plurality of cameras mounted on the track detection trolley, reconstructing three-dimensional images of the track and the tunnel based on the shot images, and performing lesion detection based on the three-dimensional images of the track and the tunnel; and determining the corresponding image frame of the detected lesion according to the lesion detection result, and determining the position information of the lesion in the track and the tunnel according to the corresponding image frame of the detected lesion. According to the method, a detection instrument does not need to be controlled manually, detection of the lesion conditions ...

Подробнее
03-06-2015 дата публикации

Lithium-ion power battery positive electrode material slurry preparation method

Номер: CN104681790A
Принадлежит:

The present invention discloses a lithium-ion power battery positive electrode material slurry preparation method, which comprises mixing various components of a positive electrode material slurry, wherein the mixing specifically comprises: 1, using a three-shaft stirrer to carry out dry mixing on a positive electrode active substance, an electric conduction agent and a binder, 2, adding partial solvent to the three-shaft stirrer, and carrying out primary dispersion, and 3, transferring the dispersed slurry to a planetary stirrer, adding the remaining solvent, and carrying out secondary dispersion. According to the present invention, the dry mixing process is used, the solvent is gradually added to the solid powder, and the high solid content of the system is utilized to improve the dispersion effect; and the three-shaft stirrer and the planetary stirrer are combined so as to achieve the good mixing effect.

Подробнее
09-06-2023 дата публикации

Wall-mounted new energy charging pile with good waterproof effect

Номер: CN116238367A
Принадлежит:

The invention discloses a wall-mounted new energy charging pile with a good waterproof effect, which comprises an outdoor wallboard, a charging pile body is arranged on the outdoor wallboard, a charging gun is arranged on the charging pile body, a controller is arranged on the charging pile body, heat dissipation holes are formed in the charging pile body, and a heat dissipation mechanism is arranged on the charging pile body. A flashing board is fixedly connected to the outdoor wallboard, a rainfall sensor is arranged on the flashing board, and a waterproof mechanism is arranged on the flashing board. The invention relates to a wall-mounted new energy charging pile with a good waterproof effect, and the wall-mounted new energy charging pile has a good waterproof function on the charging pile and has the characteristic that the charging pile can be quickly cooled.

Подробнее
27-05-2015 дата публикации

Preparation method of high-tap-density LiFePO4

Номер: CN104649244A
Принадлежит:

The invention discloses a preparation method of high-tap-density LiFePO4 and solves a problem of a low electronic conductivity of LiFePO4 in the prior art. Through optimization design of calcination temperature, calcination time and calcinations atmosphere, during the preparation method, raw materials are directly subjected to high-temperature calcination and quick cooling, wherein a proper amount of ferrous phosphide (Fe2P) is added to the LiFePO4 and the granular size of the generated LiFePO4 material is controlled in the submicron grade, so that the LiFePO4 is high in tap density and excellent in rate capability. The preparation method is simple in processes and is low in cost. The LiFePO4 is uniform in the granular size and is high in the tap density and excellent in the rate capability.

Подробнее
01-05-2018 дата публикации

Portable concrete constructional column watering device

Номер: CN0207296408U

The utility model discloses a portable concrete constructional column watering device, including constructional column template and dustpan, the dustpan with constructional column template fixed connection, be provided with splint in the dustpan, the one end of splint is passed through the hinge and is fixed the dustpan bottom, splint can along with the hinge rotates together the middle part of dustpan is provided with and is used for supporting the screw rod of splint be provided with on the screw rod be used for with the screw rod is fixed nut on the dustpan. The utility model discloses usedrepeatedly can be had enough to meet the need to be convenient for the pouring of constructional column, and can not leave over unnecessary concrete, advantage such as have material saving, use manpower sparingly.

Подробнее
09-09-2015 дата публикации

Soft -packing waste battery utmost point ear resection device of all insulation

Номер: CN0204622205U
Принадлежит:

The utility model relates to a waste battery reclaims technical field, discloses a soft -packing waste battery utmost point ear resection device of all insulation, including cutters and battery cell positioner. Cutters includes knife rest, blade and damping piston, is equipped with the cavity in the knife rest, and the knife rest bottom is equipped with the insert pocket, is equipped with the damping piston in the cavity, is equipped with the blade in the insert pocket, and the damping piston includes cylinder body, piston body and spring, and cylinder body and lower cylinder body are divided into with the cylinder body to the piston body, and in the cylinder body was located down to the spring, the blade was connected with the piston body. Battery cell positioner includes base, slide rail, die -cut backing plate, layer board and battery cell locating plate, and on the base was located to slide rail and die -cut backing plate, on the slide rail was located to the layer board, battery cell ...

Подробнее
21-01-2015 дата публикации

High energy density battery with excellent cycle performance

Номер: CN104300137A
Автор: ZHOU WEIYING, LYU HAOJIE
Принадлежит:

The invention relates to the technical field of lithium ion power batteries, in particular to a high energy density battery with excellent cycle performance. An anode material of the high energy density battery with the excellent cycle performance is a composite of a lithium-enriched manganese-base solid solution anode material and a high nickel-base anode material at a mass ratio of (0.1-9):1. The high energy density battery has high charge and discharge efficiency for the first time, higher median voltage and the good cycle performance, and the median voltage drops slowly in a cycle process.

Подробнее
14-01-2015 дата публикации

Processing method of waste lithium iron phosphate power battery

Номер: CN104282961A
Принадлежит:

The invention discloses a processing method of a waste lithium iron phosphate power battery, wherein the processing method comprises the following steps: (1) recycling tabs of the power battery; (2) drilling holes on an aluminum plastic film of the power battery, carrying out constant temperature soaking of the battery in a 70-90 DEG C first strong alkali solution for 3-12 h, and filtering to obtain a first filtrate; (3) separating the aluminum plastic film with an electrical core; (4) placing the electrical core in a second strong alkali solution, soaking, and filtering the second strong alkali solution to obtain a filter residue and a second filtrate; (5) adding diluted hydrochloric acid into the filter residue, regulating the pH to 7, and then filtering to obtain a filtered substance and a third filtrate; and (6) drying the filtered substance to obtain a solid waste, merging the first filtrate, the second filtrate and the third filtrate to obtain an alkali-containing solution, adding ...

Подробнее
14-01-2015 дата публикации

Lithium titanate battery and manufacturing method thereof

Номер: CN104282935A
Принадлежит:

The invention relates to a lithium titanate battery which comprises a positive plate, a negative plate, a diaphragm, electrolyte and an outer package, wherein the positive plate and the negative plate respectively consist of positive and negative current collectors and positive and negative pole materials coating the positive and negative current collectors; the positive pole material comprises a positive active substance, a positive conductive agent and a positive pole adhesive; and the positive active substance refers to an irregular ternary cathode material. Because the irregular ternary material is adopted in the positive pole, and the highest charging potential of a positive pole with high nickel containing ratio is 4.4V, the battery prepared from the material has extremely high specific capacity of larger than 180mAh/g and also has high stability. Moreover, the energy density of a battery cell assembled by matching a high specific capacity positive pole and a lithium titanate negative ...

Подробнее
30-05-2023 дата публикации

Double-path crowd counting method of multi-scale attention mechanism

Номер: CN116189096A
Принадлежит:

The invention discloses a double-path crowd counting method of a multi-scale attention mechanism, and provides a multi-scale feature extraction method in order to solve the problem of large crowd scale change, which organically combines a multi-scale module, expansion convolution and a feature pyramid. In order to suppress the background interference problem, an attention mask network and a new density map generation mode are designed; in order to further improve the quality of the prediction density map, a self-adaptive multiple loss function is given in combination with background attention mask loss. Accurate counting is achieved by generating a high-quality density map and integrating the generated density map.

Подробнее
13-06-2023 дата публикации

Production method for improving mechanical property uniformity of chromium-molybdenum steel wire rod

Номер: CN116254466A
Принадлежит:

The invention discloses a production method for improving mechanical property uniformity of a chromium-molybdenum steel wire rod, and belongs to the technical field of steel wire rod production. Comprising the steps of smelting, continuous casting, rolling and cooling. A casting blank comprises the following chemical components in percentage by weight: 0.35 to 0.37 percent of C, 0.15 to 0.30 percent of Si, 0.70 to 0.80 percent of Mn, less than or equal to 0.020 percent of P, less than or equal to 0.020 percent of S, 0.95 to 1.05 percent of Cr, 0.15 to 0.25 percent of Mo and the balance of iron and inevitable impurities. The first three heat preservation covers are opened after spinning, the roller way speed of the first section is 0.12 m/s, and the roller way speed of the tail section is 0.35 m/s; according to the invention, the hot-rolled wire rod with uniform mechanical properties is obtained through component control, controlled rolling and controlled cooling technologies.

Подробнее
23-05-2023 дата публикации

Portable simulation circuit breaker fault detection method

Номер: CN116148656A
Принадлежит:

The invention relates to the technical field of data processing, and provides a portable analog circuit breaker fault detection method, which comprises the following steps: acquiring original signal data of normal conditions and different faults in an analog circuit breaker, and acquiring actual signal data; obtaining track matrixes and a plurality of feature vectors of different window scales of the original signal data, obtaining a plurality of IMF components of the original signal data and taking the IMF components as embedded nodes to obtain a first correlation sequence; obtaining a plurality of feature vector groups and a second correlation sequence, and obtaining a corresponding frequency of each feature vector group; obtaining a plurality of difference feature vector groups and difference frequency of each fault, obtaining the credibility of each difference feature vector group, and obtaining the fault frequency; and obtaining a fault vector group of the original signal data of each ...

Подробнее
22-10-2014 дата публикации

Preparation method of lithium ion battery positive electrode modified material

Номер: CN104112860A
Автор: YIN YUEHUI, LYU HAOJIE
Принадлежит:

The invention relates to the lithium ion battery material field, and particularly relates to a preparation method of a lithium ion battery positive electrode modified material. The preparation method adopts the following steps: firstly, carrying out ball milling on a battery positive electrode material for 5-10 hours with the ball-to-material ratio of 1-2:1, then calcining for 3-5 hours at the temperature of 900 DEG C-1200 DEG C, and thus obtaining an initial material; then carrying out rare earth element doping on the initial material of the step 1); and finally cladding by adopting nano silver to obtain the lithium ion battery positive electrode modified material. The lithium ion battery positive electrode modified material prepared by the method not only is high in security, high in energy density and high in lithium ion conductivity, but also has good electrochemical properties and high-temperature cyclic stability.

Подробнее
15-04-2015 дата публикации

Graphene electric conduction glue layer-containing lithium ion battery positive electrode sheet production method

Номер: CN104518200A
Принадлежит:

The present invention discloses a graphene electric conduction glue layer-containing lithium ion battery positive electrode sheet production method, which comprises that a graphene electric conduction glue prepared by mixing a binder, graphene powder and a N-methylpyrrolidone solvent is coated on a current collector, a positive electrode material slurry is coated on the graphene electric conduction glue layer, and baking and sheet pressing are performed to obtain the positive electrode sheet. With the production method of the present invention, the internal resistance of the electrode sheet is reduced, the battery polarization is reduced, and the cycle performance and the rate capability of the battery are improved.

Подробнее
30-05-2023 дата публикации

Production method for improving hot charging rate of bloom low-carbon aluminum killed steel billet

Номер: CN116174668A
Принадлежит:

The invention discloses a production method for improving the hot charging rate of a bloom low-carbon aluminum killed steel billet, and belongs to the technical field of metallurgy. The production method comprises the procedures of molten iron desulfurization, converter treatment, LF furnace treatment, RH furnace treatment, continuous casting, cogging and rolling. A continuous casting procedure: the surface temperature of a casting blank after three times of cooling is less than or equal to 300 DEG C, and the temperature after surface temperature return before hot charging is less than or equal to 600 DEG C; the surface temperature of the steel billet before entering the furnace is greater than or equal to 450 DEG C; on the premise that the product quality is guaranteed, hot charging is carried out on the steel billets, pile cooling treatment is not needed any more, the purposes of saving energy, reducing consumption and improving the yield are achieved, meanwhile, the product surface quality ...

Подробнее
04-02-2015 дата публикации

Method for solving expanding of lithium ion battery using lithium titanate as negative electrode

Номер: CN104332656A
Принадлежит:

The invention discloses a method for solving expanding of a lithium ion battery using lithium titanate as a negative electrode, and solves the widespread expanding problem of the lithium ion battery using the lithium titanate as the negative electrode; the method includes the production of positive and negative electrode plates, the production of an electric core, welding packaging, sealing and filling of a liquid, and formation and capacity grading; in the production of the positive and negative electrode plates, the designed positive electrode plate capacity is controlled to be greater than the designed negative electrode plate capacity; in the formation and capacity grading, the first charge potential of the whole battery is controlled, the electrode potential of first charging formation of the negative electrode is controlled to be 0.2-0.6V, by reducing the negative electrode potential, the negative electrode can form a SEI (solid electrolyte interface) membrane for effectively blocking ...

Подробнее
14-01-2015 дата публикации

Flexible package lithium ion battery silicon negative pole and manufacturing method thereof

Номер: CN104282881A
Принадлежит:

The invention relates to a flexible package lithium ion battery silicon negative pole. The flexible package lithium ion battery silicon negative pole consists of a current collector and an active substance layer coating the surface of the current collector, wherein the active substance layer consists of the following substances in percentage by mass: 10-92 percent of silicon-carbon composite material, 2-70 percent of a conductive agent and 5-20 percent of an adhesive; the adhesive refers to polyimide; the porosity of the active substance layer is 30-65 percent, and the compaction density is 1.1-2.0g/cm<3>. Polyimide is dispersed by adopting a proper solvent, and the adhesive subjected to high-temperature polyacylation treatment has extremely high adhesive force, so that the prepared silicon negative pole piece has ultra-strong tension stress, the structure is kept stable in the repeated lithium-ion embedding and separating process, the first charge-discharge efficiency of the silicon negative ...

Подробнее
04-08-2023 дата публикации

Method for improving surface quality of wire rod for piston rod of automobile shock absorber

Номер: CN116532496A
Принадлежит:

The invention discloses a method for improving the surface quality of a wire rod for a piston rod of an automobile shock absorber. The method comprises the working procedures of spinning, coiling and packaging. The specification of the wire rod for the piston rod of the automobile shock absorber is phi 12-20 mm, and the spinning parameters are as follows: the amplitude is 2.5-5.5%, the period is 3-6 s, and the advance coefficient is 1-2.5%. By optimizing spinning process parameters and a coil collecting mode and reducing packaging pressure, coil discharging quality and coil rod packaging quality are improved, the defects of surface scratches of coil rods, pits of finished piston rods and pocking marks are reduced, the reject ratio of products is reduced to be smaller than or equal to 3% from 11%, the yield of the products is increased, and customer losses are reduced.

Подробнее
14-01-2015 дата публикации

Novel high-energy-density power battery

Номер: CN104282934A
Принадлежит:

The invention relates to the technical field of lithium-ion power batteries and particularly relates to a novel high-energy-density power battery. The novel high-energy-density power battery comprises a positive pole, a diaphragm, a negative pole and an electrolyte, wherein the negative pole comprises a negative current collector and a negative active material, and the negative active material is a C-Sn-Si high-capacity composite material; a positive active material is a high-nickel high-capacity ternary material LinNixAyBzO2, wherein n is not smaller than 1.0 and not greater than 1.1, x is not smaller than 0.6 and not greater than 0.85, y is not smaller than 0 and not greater than 0.2, z is not smaller than 0 and not greater than 0.2, and x+y+z is equal to 1. The novel high-energy-density power battery disclosed by the invention has the advantages that the energy density of the battery is increased by over 16%, the charging cut-off voltage of the battery is increased to 4.3V, and furthermore ...

Подробнее
27-05-2015 дата публикации

High-capacity lithium ion power cell and preparation method thereof

Номер: CN104659408A
Принадлежит:

The invention discloses a high-capacity lithium ion power cell and a preparation method thereof. A negative pole of the power cell is a negative pole plate prepared from a C-Sn-Si composite material as a negative pole active substance, an electrolyte contains additives such as vinylene carbonate, propylene sulfite, fluoroethylene carbonate, vinylethylene carbonate and catechol carbonate, and the power cell utilizes a ceramic diaphragm with a polyacrylonitrile skeleton. The negative pole is prepared from a C-Sn-Si high-capacity composite material so that cell energy density is improved. The electrolyte contains the functional additives so that cell energy density and high voltage cycle performances are improved. Through use of the ceramic diaphragm, cell safety is improved.

Подробнее
07-04-2023 дата публикации

Structural structure and construction method for preventing continuous cantilever layer of building from displacing

Номер: CN115928883A
Принадлежит:

The invention relates to the field of building construction, in particular to a structure for preventing a building continuous cantilever layer from displacing and a construction method. The continuous cantilever layer is arranged on the outer side face of the concrete body structure and comprises a plurality of steel trusses, vertical stand columns are arranged on the two sides of one side face of the concrete body structure, and the two vertical stand columns and the side face of the concrete body structure are located on the same vertical plane. The multiple steel trusses are arranged between the two vertical stand columns and on the side face of the concrete body structure in the height direction of the concrete body structure. The multiple steel trusses comprise the first steel truss, the second steel truss, the third steel truss and the fourth steel truss which are sequentially arranged from bottom to top, and concrete floors are poured on the first steel truss, the second steel truss ...

Подробнее
23-06-2023 дата публикации

Telescopic expansion type photovoltaic energy storage integrated device

Номер: CN116317904A
Принадлежит:

The invention belongs to the technical field of photovoltaic energy storage, particularly relates to a telescopic and expandable photovoltaic energy storage integrated device, and aims to solve the problems that an existing photovoltaic energy storage integrated device is inconvenient to fold and unfold during use and inconvenient to adjust according to use requirements, and the use effect is greatly reduced. Two supports are symmetrically and fixedly installed at the bottom of the bottom plate, two vertical plates are symmetrically and slidably installed at the top of the bottom plate, first fixing frames are fixedly installed on the two vertical plates, first rotating rods are rotatably installed on the two first fixing frames, placing frames are fixedly installed on the two first rotating rods, and the two placing frames are rotatably connected. Second fixing frames are fixedly mounted on the two vertical plates, second rotating rods are rotatably mounted on the two second fixing frames ...

Подробнее
21-05-2014 дата публикации

High-capacity lithium ion battery composite negative electrode material and preparation method thereof

Номер: CN103811730A
Принадлежит:

The invention discloses a high-capacity lithium ion battery composite negative electrode material and a preparation method thereof, wherein problems of low charging-discharging specific capacity and poor cycle performance of application of the existing carbon material as the lithium ion battery negative electrode material are solved. According to the present invention, the high-capacity lithium ion battery composite negative electrode material is a composite powder material comprising a component Si/SnC2O4 or Si/SnC2O4/C, wherein silicon powder, a soluble stannous salt and a soluble oxalate are subjected to a mixing reaction, the obtained solid is dried to obtain Si/SnC2O4, a carbon material is added according to a ratio, and ball milling is performed to obtain Si/SnC2O4/C; the particle size of the material is 0.5-30 mum, a mass ratio of Si to SnC2O4 is 1:10-10:1 in Si/SnC2O4 or Si/SnC2O4/C, and the mass percent content of the elemental carbon in Si/SnC2O4/C is 5-90%; and the high-capacity ...

Подробнее
22-08-2023 дата публикации

AI-based reference material generation method and application thereof in code writing

Номер: CN116628170A
Принадлежит:

The invention discloses an AI-based reference material generation method and application thereof in code compilation, according to the scheme, to-be-processed information for expressing requirements of a user is cleverly sorted to form material request information for expressing intentions of the user, and then the material request information is imported into a language processing tool based on AI training for response, so that the user experience is improved. Finally, target content extraction is conducted on the response result, the target content meeting the requirement is output to serve as a reference material, when the scheme is used for code writing, the code reference material can be rapidly provided for a user, the user can more efficiently and accurately write codes, meanwhile, thought enlightenment and expansion can be provided for the user, and the user experience is improved. Humanized assistance is provided for a user before or during code writing.

Подробнее
14-01-2015 дата публикации

Circulation improvement type lithium and manganese-rich solid solution battery

Номер: CN104282941A
Автор: ZHOU WEIYING, LYU HAOJIE
Принадлежит:

The invention relates to a circulation improvement type lithium and manganese-rich solid solution batteryincluding a positive electrode, a negative electrode and an electrolyte, wherein the positive electrode comprises a positive electrode active material, a positive electrode conductive agent and a positive electrode binder, the negative electrode includes a negative electrode active material, a negative electrode binder and a negative electrode conductive agent, and the circulation improvement type lithium and manganese-rich solid solution batteryis characterized in that, the electrolyte includes a lithium salt, an organic solvent, a film forming additive, a stabilizer and auxiliaries; the and the auxiliary are methyl trifluoromethansulfonate and 4, 4 '-sulfonyl diphenylamine. The invention provides a circulation improvement type lithium and manganese-rich solid solution batterywhich has the advantages of low cost and high capacity, and on the premise of satisfying the multiplying power ...

Подробнее
14-01-2015 дата публикации

High-performance lithium titanate power battery

Номер: CN104282878A
Принадлежит:

The invention relates to the technical field of lithium-ion power batteries and particularly relates to a high-performance lithium titanate power battery. The high-performance lithium titanate power battery comprises a positive pole, a diaphragm, a negative pole and an electrolyte, wherein the negative pole comprises a negative current collector and a negative active material layer, the negative active material layer comprises a negative active material and a conductive substance, the negative active material is lithium titanate, and the ratio of negative capacity to positive capacity is 0.6-0.75. The lithium-ion power battery has the advantages that the cycle life of the battery is effectively prolonged, and the safety performance and high-current charge and discharge performance of the battery are effectively improved.

Подробнее