37results about How to "Capacity unchanged" patented technology

Provided is a flexible super capacitor. Two current collectors are covered on the upper and lower surfaces of a composite hydrogel film; and packaging layers wraps the current collectors and the composite hydrogel film. The composite hydrogel film is integrated by two electrodes and middle electrolyte; and the upper and lower surfaces of the composite hydrogel film are conductive polymer layers serving as the electrodes respectively, and the middle layer thereof is a hydrogel layer serving as the electrolyte. The two current collector layers are covered on the two sides of the electrode-electrolyte composite film respectively, and the formed whole body is packaged in the packaging layers. The preparation method of the flexible super capacitor is characterized by, to begin with, preparing the polyvinyl alcohol hydrogel film; then, preparing the conductive polymer-polyvinyl alcohol composite hydrogel film having a sandwich structure; preparing the current collectors on the upper and lower surfaces of the conductive polymer-polyvinyl alcohol composite hydrogel film; and finally, carrying out packaging.

The invention discloses a lithium-oxygen battery capable of improving battery energy density. The lithium-oxygen battery comprises two cathodes, two anodes and two solid electrolyte diaphragms. Each anode consists of anode electrolyte solution and an anode element composed of carbon-oxygen anode materials and an anode current collector, and each cathode comprises a cathode element which consists of a cathode current collector and a lithium metal plate. The two cathodes share a same cathode current collection plate, the two lithium metal plates are attached onto two surfaces of the cathode current collection plate respectively, and the two solid electrolyte diaphragms are attached onto the other faces of the two lithium metal plates respectively. The anodes are electrically connected with an anode end of a battery shell, and the cathodes are electrically connected with a cathode end of the battery shell. The invention further discloses a method for preparing the lithium-oxygen battery. The lithium-oxygen battery is small in size and high in energy density, and space utilization rate of the battery is increased.

The invention relates to a sponge composite metallic organic framework material for adsorption separation and belongs to the technical field of materials. According to the invention, a two-step in-situ growth method is adopted for loading MOFs (metallic organic framework material) into a duct in a sponge carrier. The MOFs is synthesized from following organic ligands and metal salts, wherein the organic ligands include pyrazine, trimesic acid, terephthalic acid, 2,5-dihydroxyterephthalic acid, and the metal salts include cupric fluosilicate, magnesium nitrate, zirconium chloride, cupric nitrate, chromic nitrate, ferric nitrate, aluminum nitrate and hydrates thereof. According to a preparation method provided by the invention, a large amount of MOFs loaded in the duct in the sponge carriercan be realized; MOFs load rate is high; load is stable; the defects of fragility and easiness in loss of MOFs powder can be overcome; a breakthrough experiment proves that the material provided by the invention has the characteristics of high CO2-absorbing capacity, high adsorption separation selectivity, stable adsorption separation property, and the like.

The invention belongs to the technical field of lithium ion battery electrode materials, and discloses a mesoporous lithium aluminum silicate coated doped single crystal ternary positive electrode material and a preparation method thereof, and particularly relates to a doped single crystal lithium nickel cobalt manganate ternary material (LiNi0.55CoxMnyM1-x-yO2@(LiAlSi2O6)z) coated with a mesoporous lithium aluminum silicate layer and a preparation method thereof. According to the preparation method disclosed by the invention, a single-crystal doped lithium nickel cobalt manganate base material is obtained through an in-situ doping co-precipitation-high-temperature solid-phase method; and the mesoporous lithium aluminum silicate layer with high speed lithium ions and electron channels is coated through a template-sol / gel-low-temperature annealing process to prepare the doped single crystal lithium nickel cobalt manganate positive electrode material (LiNi0.55CoxMnyM1-x-yO2@(LiAlSi2O6)z), wherein the material has a high first specific capacity of 185.5mAh / g, high high-voltage cycling stability and excellent rate performance.

The invention discloses a production technology of a thin-gauge, ultra-low iron loss, low-noise and high-magnetic induction oriented silicon steel sheet. The oriented silicon steel sheet comprises the following components in percentage by weight: 0.003-0.05 percent of C, 4.1-9 percent of Si, 0.05-0.5 percent of Mn, 0.02-0.06 percent of Al, 0.01-1 percent of Sn, 0.05-0.1 percent of Mo, 0.2-1 percent of Cu, 0.003-0.02 percent of N, 0.002-0.06 percent of P, 0.001-0.008 percent of S and the balance of iron and other inevitable impurities. The high-magnetic induction oriented silicon steel sheet which is produced through hot rolling, cold rolling and annealing processes and the like has the superior performances such as ultra-low iron loss, high flux density, low magnetostriction coefficient and small thickness, has the advantages of simple process, stable texture and capabilities of greatly saving the materials and saving the resources while guaranteeing that the capacity of a transformer is unchanged, and is the best candidate material for manufacturing high-grade power transmission and distribution transformer cores at present.

The invention provides an environment-friendly firework material composition, comprising the following components in percentage by weight: 5-38 percentage of fiber scrap, 4-35 percentage of adhesive, 0.1-15 percentage of catalyst, 40-80 percentage of hydraulic material, 0-0.8 percentage of polishing agent, and 0-40 percentage of stuffing. The invention further provides a preparation method of the composition, comprising the following steps of: a preparing step: mixing 100 parts (by weight) of environment-friendly firework material composition with 50-300 parts (by weight) of water with temperature of 0-95 DEG C, and uniformly stirring to obtain a hydrate mixture; a mold filling step: filling a mold with the obtained hydrate mixture, thereby finishing the mold filling step; a molding step: naturally placing for 10-120 minutes, and then opening the mold to pick out product; and a drying step: placing the product at a well-ventilated place for drying naturally, or putting into a drying cabinet for drying.

The invention provides a frequency planning method applied to an LTE-R system based on a distributed base station. The method is suitable for a special railroad broadband mobile communication system laid along a railway line. According to the method, key area points along the railway line are selected as cell center points. At station and multiple-line crossing and merging areas, the LTE-R system capacity requirement is large and the business types are various; full-band RRUs are arranged at centers of the areas, and partial-band RRUs are arranged at edges of cells and centers of non-key cells. The method has the benefits that the inter-cell interference is reduced; the cell system capacity and frequency utilization are improved. Compared with a same-frequency networking method, the inter-cell interference is reduced by 50% or above, while the wireless communication system capacity is substantially unchanged.

The invention provides a rear cushion arranging structure of an auto-bicycle capable of avoiding reduction of capacity of a fuel tank while sufficiently securing a rear cushion stroke even in directly supporting a lower part of the rear cushion on a rear fork. This auto-bicycle 1 is furnished with a body frame 2 having a main frame 4 and a seat rail 9 extending to the rear of the body from this main frame 4 and the rear cushion 30 arranged between this body frame 2 and the rear fork axially supporting a rear wheel, the fuel tank 50 is arranged in such a way as to straddle over the main frame 4 and the seat rail 9, a fuel pump 60 is arranged on a rear part of a bottom part of this fuel tank 50, and an upper end of the rear cushion 30 is positioned to the front of the fuel pump 60 by projecting it upward from the seat rail 9.

The invention discloses a nucleic acid extractor. Nucleic acid of a sample is extracted and concentrated simultaneously by a combined magnetic attraction mechanism. The nucleic acid extractor comprises a feeding mechanism, a plurality of deep pore plates and a plurality of magnetic attraction mechanisms, wherein magnetic adsorption pieces are arranged on the magnetic attraction mechanisms, the plurality of magnetic attraction mechanisms are correspondingly distributed on the feeding mechanism to form the combined magnetic attraction mechanism, and distribution positions of the magnetic attraction mechanisms are correspondingly matched with positions of the deep pore plates; the magnetic adsorption pieces with different sizes are arranged on different magnetic attraction mechanisms; the volumes of pore grooves in the deep pore plates are respectively correspondingly matched with the magnetic adsorption pieces with different sizes. By mutual cooperation of the combined magnetic attraction mechanism and the deep pore plates with a plurality of pore grooves with different volumes, processes of extraction, gradient rinsing and elution can be smoothly and sequentially completed, the elution process from a large-volume sample to a micro-volume purified product is realized, so that the concentration of finally obtained nucleic acid is very high, and the nucleic acid extraction effect is greatly improved.

The invention discloses a large-capacity anti-explosion frequency converter applicable to multiple output voltage levels, and relates to a large-capacity anti-explosion frequency converter applicable to two voltage levels. The problem of poor universality of a known frequency converter due to the facts that the known frequency converter is only applicable to one output voltage level and a frequency converter applicable to two voltage levels needs to be equipped for the occasion with usage of two voltage levels is mainly to be solved. An input end of a four-quadrant rectifying unit is connected with an input electric reactor, an output end of the four-quadrant rectifying unit is connected with input ends of three inverting units, output ends of the three inverting units are connected with an output electric reactor, connected to a star-shaped changeover contactor and a triangular changeover contactor, and the three inverting units are connected to form a star shape via the star-shaped changeover contactor and are connected to form a triangular shape via the triangular changeover contactor. The large-capacity anti-explosion frequency converter is applicable to loads different in voltage level, unchanged in capacity, integrally modular, easy to maintain, high in heat radiating efficiency due to water cooling and high in output capacity.

The present invention relates to a method for allocating resources to a transmitter adapted to send data over a radio link, the data being transmitted in physical resource blocks allocated by a resource allocation mechanism, said physical resource block being defined by its frequency extension and its time extension, an automatic repeat request protocol being used for signaling erroneously and / or correctly received data through a feedback message. According to the present invention, the method is characterized in that it includes the steps of: - including in said feedback message information related to the new frequency extension and / or time extension for the physical resource block to be used in case of further transmission of data by said transmitter.

The invention relates to the field of hydrogen storage alloy materials, in particular to an yttrium-scandium-iron alloy material and an yttrium-titanium-scandium-iron alloy material. The chemical general formulas of the yttrium-scandium-iron alloy material and the yttrium-titanium-scandium-iron alloy material are respectively Y<1-x>ScxFe2 and Y<1-x-y>TiyScxFe2, wherein x is greater than or equal to 0.1 and is less than or equal to 0.5, and y is greater than or equal to 0.1 and is less than or equal to 0.2. The invention also discloses the preparation methods of the yttrium-scandium-iron alloymaterial and the yttrium-titanium-scandium-iron alloy material. The preparation method comprises the following steps of: weighing and mixing metal block materials according to the mass ratio of the general chemical formula, smelting at the temperature of higher than 1,600 DEG C, and cooling to obtain an alloy ingot; placing and sealing the alloy ingot in an annealing container, and vacuumizing theannealing container; placing the annealing container under preset conditions for sealing, and taking out an alloy block from the annealing container after cooling; and crushing the alloy block into apowder state, thereby obtaining the alloy material. The alloy material provided by the invention has a stable structure, high hydrogen storage capacity, low hydrogen absorption temperature, excellenthydrogen absorption and desorption performances, and a significantly improved dehydrogenation performance, and is beneficial to the further practical application of the alloy material in the hydrogenstorage field and the nickel-hydrogen battery field.

Provided is a flexible super capacitor. Two current collectors are covered on the upper and lower surfaces of a composite hydrogel film; and packaging layers wraps the current collectors and the composite hydrogel film. The composite hydrogel film is integrated by two electrodes and middle electrolyte; and the upper and lower surfaces of the composite hydrogel film are conductive polymer layers serving as the electrodes respectively, and the middle layer thereof is a hydrogel layer serving as the electrolyte. The two current collector layers are covered on the two sides of the electrode-electrolyte composite film respectively, and the formed whole body is packaged in the packaging layers. The preparation method of the flexible super capacitor is characterized by, to begin with, preparing the polyvinyl alcohol hydrogel film; then, preparing the conductive polymer-polyvinyl alcohol composite hydrogel film having a sandwich structure; preparing the current collectors on the upper and lower surfaces of the conductive polymer-polyvinyl alcohol composite hydrogel film; and finally, carrying out packaging.

The invention discloses an alternating-current (AC) de-icing method. In the method, a de-icing device comprising a body, a wiring pile head and wire reels is utilized; one side of the de-icing device is taken as a mains side of incoming lines and the other side of the de-icing device is taken as an output low-pressure side; coils of the output side are drawn out independently, drawing heads are accessed the pile head of the device, and multi-level voltage output are obtained by a certain connection mode; the wire reels are arranged at two sides of the device, input connecting leads are wound on one side of each wire reel and output connecting leads are wound on the other side of each wire reel; after the freeze generates, the tail ends of transmission lines are shortly connected; according to the length and requirement of the transmission lines, a proper wiring mode and a voltage output gear are selected, and then the head ends of the transmission lines are connected with the output low-pressure side of the de-icing device by transition of a single-core insulation cable; and the transmission lines generate heat by the output AC so as to reach the de-icing effect. The invention has the advantages that the de-icing speed is quick, the influences on users are slight, the de-icing cost is low and the human injuries do not happen, the device is small, the weight is light, the operation is simple, the running is convenient and the device capacity is unchanged.

The invention discloses a preparation method and the application of titanium dioxide nano-rod growing on diatomite in situ. The TiO2 nano-rod grows on the surface of the diatomite in situ by a hydrothermal method, wherein titanium nitride or isopropyl titanate serves as a titanium source, ammonium oxalate serves as a depositing agent, and hexadecyl trimethyl ammonium bromide or sodium dodecyl benzene sulfonate serves as a soft template agent. A large amount of oxygen defects exist on the surface of the crystallized TiO2 and the crystallized TiO2 can interact with the diatomite with a large amount of silicon hydroxyl under the electrostatic attraction, so that the heterogeneous nucleation growth of the TiO2 on the surface of the diatomite is promoted. The TiO2 crystal directionally grows tobe a nano-rod structure under the structure-directing action of the soft template agent. A large amount of active hydroxyl groups and unsaturated bonds are increased on the surface of the diatomite under the existence of the TiO2 nano-rod, so that active adsorption sites on the surface are increased, the specific surface area is enlarged and the adsorption rate of an adsorbent is greatly increased. The adsorbent can repeatedly adsorb chromium ions after being eluted by an alkaline solution, and the adsorption efficiency is not changed basically.

The invention provides an intelligent battery repair pulse charging all-in-one machine and method, and relates to the technical field of battery repair and charging. A power supply system used for supplying power is in circuit connection with a single-chip microcomputer, a battery voltage monitoring system, an input and display system, a battery temperature detection system, a case heat dissipation system and a charging circuit. The single-chip microcomputer used for control is in signal connection with the battery voltage monitoring system, the input and display system, the battery temperature detection system, the charging circuit and the discharging circuit, and the single-chip microcomputer is connected with the battery voltage monitoring system, the battery temperature detection system, the charging circuit and the discharging circuit respectively and is connected with the storage battery. Compared with the prior art, pulse charging is carried out on the storage battery, the service life of the new battery can be effectively prolonged, the capacity of the new battery is kept unchanged, effective repeated charging and discharging can be carried out on the aged battery, the optimal activation effect is achieved, manual participation is not needed, the charging mode is suitable for various batteries, and multiple purposes of one machine can be achieved.

The invention discloses a CRRT pipeline replacement method, comprising the following steps: S1, checking: checking CRRT doctor order, patient identity information, original pipeline and parameters, monitoring patient vital signs; S2, evaluation: comprehensive evaluation of the cause of blood return, hemodynamics of patients, and alarm during the last treatment; S3, preparation for use: alcohol cotton tablets, therapeutic towels, NS 250ml, NS for injection 20ml, syringes 20ml if necessary. The invention can reduce the interruption of CRRT, to provide a safe and effective alternative for patients with hemodynamically unstable CRRT in the process of replacing the pipeline, can guide clinical medical staff to intervene in accordance with the needs of patients in different periods of time, canstabilize the hemodynamics of patients, shorten the hospitalization time, improve the prognosis of patients, and promote the overall rehabilitation of patients.

The invention provides a battery, a charging device, and an electronic device and belongs to the technical field of electronics. The battery comprises at least two electrical core modules. Each electrical core module is equipped with a charging interface and is connected with a total charging interface through the charging interface. When charging current flows into the total charging interface, the total charging interface charges the at least two electrical core modules by means of the charging interfaces of the electrical core modules. When the battery is charged, charging current equal to the sum of the maximum charging current of the at least two electrical core modules may flow into the battery. Compared with a conventional battery, the battery is increased in the upper limit of the maximum charging current so as to be shortened in charging time on the premise that the capacity of the battery is not changed.

The invention discloses a detecting method for the capacity of a storage battery. The method comprises the following steps: applying double-pulse current signals to the storage battery, measuring the voltage response and a first derivative generated by the double-pulse current signals at different moments, calculating the change of the electromotive force of the power source of the storage battery and the capacitance and the resistance on a pole plate of the battery plate by using different formulas, and further calculating the capacity of the storage battery. Through the method, the double-pulse current signals are applied to both terminals of the storage battery, the capacity of the storage battery can be detected without discharge of the storage battery, and through certification, the detected result is accurate and reliable.

The invention relates to the field of hydrogen storage alloy materials, in particular to a yttrium-scandium-iron alloy material and a yttrium-titanium-scandium-iron alloy material, the general chemical formulas of which are respectively Y 1‑x Sc x Fe 2 and Y 1‑x‑y Ti y Sc x Fe 2 , 0.1≤x≤0.5, 0.1≤y≤0.2. The invention also discloses a preparation method of yttrium-scandium-iron and yttrium-titanium-scandium-iron alloy materials, comprising: weighing and mixing metal block materials according to the substance mass ratio of the general chemical formula, and mixing them under the condition that the temperature is higher than 1600°C The alloy ingot is smelted and cooled to obtain an alloy ingot; the alloy ingot is placed in an annealing container and sealed, and the annealing container is evacuated to a vacuum state; the annealing container is placed in a preset condition for annealing, and the alloy block is taken out of the annealing container after cooling ; Crushing the alloy block into a powder state to obtain the alloy material. The alloy material provided by the invention has a stable structure, high hydrogen storage capacity, low hydrogen absorption temperature, excellent hydrogen absorption and desorption performance, and significantly improved dehydrogenation performance, which is beneficial to the further practical application of the alloy material in the fields of hydrogen storage and nickel-hydrogen batteries.

The invention discloses a production technology of a thin-gauge, ultra-low iron loss, low-noise and high-magnetic induction oriented silicon steel sheet. The oriented silicon steel sheet comprises the following components in percentage by weight: 0.003-0.05 percent of C, 4.1-9 percent of Si, 0.05-0.5 percent of Mn, 0.02-0.06 percent of Al, 0.01-1 percent of Sn, 0.05-0.1 percent of Mo, 0.2-1 percent of Cu, 0.003-0.02 percent of N, 0.002-0.06 percent of P, 0.001-0.008 percent of S and the balance of iron and other inevitable impurities. The high-magnetic induction oriented silicon steel sheet which is produced through hot rolling, cold rolling and annealing processes and the like has the superior performances such as ultra-low iron loss, high flux density, low magnetostriction coefficient and small thickness, has the advantages of simple process, stable texture and capabilities of greatly saving the materials and saving the resources while guaranteeing that the capacity of a transformer is unchanged, and is the best candidate material for manufacturing high-grade power transmission and distribution transformer cores at present.

The invention discloses an yttrium-iron-based alloy material. The general chemical formula is YFexMy. M is one or more of the metal aluminum or manganese or cobalt elements, and 1<=x<=2, 0<=y<=1.2, and 1.8<=x+y<=2.2. The invention further discloses a preparation method for the yttrium-iron-based alloy material, metal block materials of yttrium, iron and the metal M are mixed, and smelting is conducted at the temperature of 1300-1500 DEG C for 3-10 minutes. The yttrium-iron-based alloy material can absorb hydrogen fast at the room temperature, and the hydrogen storage capacity reaches 1.0-1.8 wt.%. In addition, the reversible hydrogen absorption-desorption properties are excellent, the crystal structure is kept unchanged after repeated hydrogen absorption-desorption cycles, disproportion decomposition does not occur, and the hydrogen storage capacity conservation rate is high.

The invention relates to a transformer pressure regulating switch oil on-line replacement system and method.The transformer pressure regulating switch oil on-line replacement system comprises an oil tank, an oil bag, an oil tank oil drain pump, an oil bag oil inlet pump, a weighing device and a control device, the oil bag is installed in the oil tank, and the oil bag and the oil tank are connected with a transformer pressure regulating switch through a first pipeline and a second pipeline respectively; the oil bag oil inlet pump and the oil tank oil drain pump are installed on the first pipeline and the second pipeline respectively and used for injecting waste oil in the transformer pressure regulating switch into the oil bag and injecting qualified oil in the oil tank into the transformer pressure regulating switch respectively, the oil tank oil drain pump is connected with the control device, and the control device comprises a weighing device. And the sensor is used for sending a measured weight signal to the control device, and the control device controls the flow of the oil tank oil drain pump, so that the difference value between the real-time weight of the oil tank and the initial weight of the oil tank is smaller than a preset threshold value, and the transformer voltage regulating switch oil is replaced.

The invention belongs to the technical field of fiberboard production, and relates to a method for preparing outdoor fiberboards with MUF-MDI glue. The production steps include: glue preparation, fiber preparation, glue mixing and drying, pavement pre-pressing, slab hot-pressing and post-treatment. The "medium-medium-alkali" synthesis process is used to prepare MUF that matches MDI, including one feeding of formaldehyde, two feedings of urea, and one feeding of melamine. The whole preparation process is divided into neutral addition reaction and neutral polycondensation reaction and alkaline post-treatment in three stages; then use MDI and the prepared MUF to determine the addition ratio of the two glues and the hot-pressing process to produce outdoor fiberboard. The method disclosed in the present invention significantly reduces the production cost compared with only using MDI glue, the production capacity is basically unchanged, the production is stable, and it is suitable for large-scale continuous production; the board has superior bonding strength, moisture resistance and water resistance, and can be applied to sunlight In the outdoor environment of , rain and air pollution, it broadens the application field of fiberboard.

An oil temperature test device is disclosed, and comprises a single hollow plate box with a cooling fin. The hollow plate box is made of a metallic material. The bottom surface of the interior of the hollow plate box is provided with a first heating device, and the first heating device is covered by a housing. The housing is connected with a leading-in pipe, and is also connected with a leading-out pipe. The leading-out pipe is provided with a second heating device and a valve, and is also connected with an oil bottle containing oil. The inner surface of the oil bottle is provided with a nitrile rubber layer in a laying manner. The top of the first heating device is provided with a hollow metal box, and the hollow metal box is connected with the leading-in pipe and the leading-out pipe. This structure irons out the defects in the prior art that the oil capacity cannot be guaranteed and the offset cannot be avoided.

The invention discloses a lithium-oxygen battery capable of improving battery energy density. The lithium-oxygen battery comprises two cathodes, two anodes and two solid electrolyte diaphragms. Each anode consists of anode electrolyte solution and an anode element composed of carbon-oxygen anode materials and an anode current collector, and each cathode comprises a cathode element which consists of a cathode current collector and a lithium metal plate. The two cathodes share a same cathode current collection plate, the two lithium metal plates are attached onto two surfaces of the cathode current collection plate respectively, and the two solid electrolyte diaphragms are attached onto the other faces of the two lithium metal plates respectively. The anodes are electrically connected with an anode end of a battery shell, and the cathodes are electrically connected with a cathode end of the battery shell. The invention further discloses a method for preparing the lithium-oxygen battery. The lithium-oxygen battery is small in size and high in energy density, and space utilization rate of the battery is increased.

The invention relates to a sponge composite metallic organic framework material for adsorption separation and belongs to the technical field of materials. According to the invention, a two-step in-situ growth method is adopted for loading MOFs (metallic organic framework material) into a duct in a sponge carrier. The MOFs is synthesized from following organic ligands and metal salts, wherein the organic ligands include pyrazine, trimesic acid, terephthalic acid, 2,5-dihydroxyterephthalic acid, and the metal salts include cupric fluosilicate, magnesium nitrate, zirconium chloride, cupric nitrate, chromic nitrate, ferric nitrate, aluminum nitrate and hydrates thereof. According to a preparation method provided by the invention, a large amount of MOFs loaded in the duct in the sponge carriercan be realized; MOFs load rate is high; load is stable; the defects of fragility and easiness in loss of MOFs powder can be overcome; a breakthrough experiment proves that the material provided by the invention has the characteristics of high CO2-absorbing capacity, high adsorption separation selectivity, stable adsorption separation property, and the like.