37results about How to "Capacity unchanged" patented technology

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 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 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 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 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.

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.