101 results about "Ultrahigh energy" patented technology

A process for producing a lithium battery, comprising: (A) Preparing a plurality of conductive porous layers, wet anode layers, and wet cathode layers; (B) Stacking a desired number of porous layers and wet anode layers in an alternating manner to form an anode electrode having a thickness no less than 100 μm; (C) Placing a porous separator layer in contact with the anode electrode; (D) Stacking a desired number of porous layers wet cathode layers in an alternating manner to form a cathode electrode in contact with the porous separator, wherein the cathode electrode has a thickness no less than 100 μm; and (F) Assembling and sealing the anode electrode, separator, and cathode electrode in a housing to produce the lithium battery. The consolidated anode or cathode layer is preferably thicker than 300 more preferably thicker than 400 μm, and further more preferably greater than 500 μm.

New sensors, pixel detectors and different embodiments of multi-channel integrated circuit are disclosed. The new high energy and spatial resolution sensors use solid state detectors. Each channel or pixel of the readout chip employs low noise preamplifier at its input followed by other circuitry. The different embodiments of the sensors, detectors and the integrated circuit are designed to produce high energy and/or spatial resolution two-dimensional and three-dimensional imaging for different applications. Some of these applications may require fast data acquisition, some others may need ultra high energy resolution, and a separate portion may require very high contrast. The embodiments described herein addresses these issues and also other issues that may be useful in two and three dimensional medical and industrial imaging. The applications of the new sensors, detectors and integrated circuits addresses a broad range of applications such as medical and industrial imaging, NDE and NDI, security, baggage scanning, astrophysics, nuclear physics and medicine.

Provided is a method for preparing a strain transducer with different graphene patterns through laser. The method comprises the following steps that firstly, a flexible transparent rubber substrate is prepared; secondly, a plurality of graphene materials grown through a chemical vapor deposition method are taken, transferred and spread on the flexible substrate prepared in the first step for standby use; thirdly, the graphene on the surface of the flexible transparent substrate forms patterned graphene; and fourthly, two parallel sides of the patterned graphene of the rectangular substrate are each brushed with a layer of silver glue, and the strain transducer is obtained through assembling. According to the method, the characteristic of ultrahigh energy of ultrashort pulse laser is utilized, cold processing for erosion of the graphene can be achieved, that is, carbon keys are directly broken off through laser energy, materials are removed without causing heating, and thus, graphene boundaries with great quality can be obtained; and any designable patterns can be scanned out through cooperation of focusing laser beams and high-speed motion of a galvanometer, and the method is flexible.

The invention belongs to the field of lithium ion batteries, provides a lithium ion battery positive electrode material with ultrahigh energy density, and aims to overcome the defects that nickel cobalt lithium manganite is poor in electrochemical performance and low in specific capacity and energy density. A molecular expression of the lithium ion battery positive electrode material is Li(Ni0.6Co0.2Mn0.2)1-xAlxO2-yFy, wherein x is greater than 0, and y is smaller than or equal to 0.05; a small amount of aluminum element replaces part of nickel element, and a fluorine element partially replaces an oxygen element, so that an internal structure of the material is stabilized, and structure collapse under a high-proportion lithium-removing state is inhibited; by co-doping aluminum with fluorine, specific discharge capacity and comprehensive electrochemical properties of the material are greatly improved; energy density is remarkably improved; besides, according to the lithium ion battery positive electrode material disclosed by the invention, a precursor material of which nickel elements are gradually distributed is prepared by adopting a gradient coprecipitation method; the concentration of the precursor material is gradually increased from inside to outside, so that the specific discharge capacity of the positive electrode material is favorably improved; a prepared product is high in purity, high in chemical uniformity and high in crystallization quality; products are small in particles, uniform in distribution, excellent in electrochemical performance and lower in manufacturing cost.

Encapsulated lithium sulfide particles, e.g., Li₂S nanoparticles, as well as associated or corresponding novel cathodes of or for Li/S batteries and methods of fabrication such as to effectively minimize or desirably overcome or resolve one or more of the issues that commonly contribute to rapid capacity fading of conventional Li/S batteries during cycling.

The invention discloses an energy-saving medium access control method in an underwater acoustic network and aims at solving the problems of ultrahigh transmission collision rate and ultrahigh energy consumption of data packets in the underwater acoustic network. The method comprises the following steps, dividing a time shaft into cycle periods with equal lengths and establishing a network topology by initialization to realize the synchronization between nodes under the condition that transmission time delay between the nodes is not known so that various nodes at data sending and receiving stages are in alarm states only in special time to send or receive the data packets and are in rest states in most time; and meanwhile, designing a collision avoidance measure, a new node adding treatment measure and a failure node treatment measure. The method can greatly save the energy consumption of the network, prolongs the service life of the network, can lower the collision rate and can effectively bring the dynamic change of the network topology by the change of the underwater environment or the movement, the damage and the updating of the nodes.

The invention provides a method for improving the binding strength of a medical bio-coating on a surface of a medical magnesium alloy. The method is characterized by comprising the following steps: performing acid treatment on the polished surface of a magnesium alloy part; performing surface micro-texture processing on the magnesium alloy part by using the thermal effect of an optical fiber laser to obtain a micro-groove array; performing laser impact on intervals of the micro-groove array on the magnesium alloy surface by using the power effect of ultrahigh energy density pulse laser to form a uniform and compact contracted micro-structure; finally soaking the magnetic alloy part with contracted micro-groove array on the surface in simulated body fluid (SBF), and biomimetically growing to obtain a hydroxyapatite (HA) bio-coating with high binding strength. According to the method, the bioactivity of the magnetic alloy surface can be promoted, the HA coating has a mechanical locking performance due to the special contracted surface micro-structure, so that the binding force between the implanted magnesium alloy and bone can be reinforced, the defects that a medical magnesium alloy implant body is short in service life and the HA coating easily falls off can be overcome.

The invention discloses a preparation method of an ultrahigh-stored energy electrical carbon material, and the preparation method is carried out according to the following steps of: firstly crushing phenolic resin, high-softening point asphalt or a mixture of the phenolic resin and the high-softening point asphalt and a curing agent into fine powder, and then adding a plasticizer; then feeding a mixed material into a double-screw extruder for extrusion and granulation; then carbonizing and activating granular materials fed into a carbonization and activation furnace by stages, and then cooling and discharging under nitrogen protection; then placing carbon materials into an acid solution for boiling washing, and placing the pickled carbon materials into deionized water for boiling washing; and finally drying and crushing the carbon materials subjected to boiling washing to obtain the fine-powdery ultrahigh-stored energy electrical carbon material with needed particle size. The preparation method disclosed by the invention has the characteristics of simplicity, high efficiency, low cost and short period; and the prepared ultrahigh-stored energy electrical carbon material has the electrical energy storage amount of 140 coulombs/gram and the specific area of 2000-2500 square meters/gram and can be widely suitable for manufacturing a high-energy automobile accumulator and an ultrahigh-energy capacitor.

The invention provides an ultrahigh-energy single-detonation ignition device with the energy capable of being adjusted within a wide range and a control method thereof. The ultrahigh-energy single-detonation ignition device comprises an energy storage capacitor set, a direct-current stabilized power source, a protective resistor, a direct-current boosting module, a voltage monitoring module, an ignition relay, a discharging relay and an ignition module. After sufficient energy is stored in the energy storage capacitor set of the device, breakdown of gaps between interval-adjustable ignition needles is achieved by conducting transient discharge, and thus high-energy ignition and direct detonation of detonating combustion are achieved. Compared with a traditional high-energy ignition system, the ultrahigh-energy single-detonation ignition device is simple in structure and high in safety, the ignition energy adjustment range is wide, the highest ignition energy can reach hundreds of Joules, and the ultrahigh-energy single-detonation ignition device can be applied to the field of micro-scale and ordinary-scale detonation study.

The invention belongs to the technical field of energy sources and particularly relates to a fiber-shaped lithium air battery and a preparation method thereof. The fiber-shaped lithium air battery is composed of a lithium metal wire, gel electrolyte, a carbon nano tube air electrode and a heat shrink tube protective layer with holes by adopting a coaxial structure. The fiber-shaped lithium air battery prepared by the invention can directly work in the air, and has ultrahigh energy density, relatively good circulating stability and good flexibility; for example, the complete specific discharge capacity in the air can reach 12470mAh/g and the battery can be stably and circularly charged and discharged for 100 times at the discharge depth of 500mAh/g; and the fiber-shaped lithium air battery can maintain stable electrochemical properties when being bent at different degrees. The fiber-shaped lithium air battery has a unique fiber configuration, so that the fiber-shaped lithium air battery can be independently woven into a fabric and also can be mixed and woven with textiles, and has a wide application prospect in the field of wearable electronics.

The invention discloses a full-automatic and efficient cleaned aluminum electrolysis cell. The full-automatic and efficient cleaned aluminum electrolysis cell comprises an anode coverage sealing system arranged on a cell shell of the aluminum electrolysis cell, and meanwhile, cooperatively develops a full-automatic aluminum exchange, pole exchange and smoke afterheat recovery system to realize great recovery of lost heat in smoke and efficient centralized treatment of pollutants, so that the operation effects of ultralow electric consumption and ultralow emission are achieved, meanwhile, the workshop staff demands are greatly reduced, the contradiction between huge energy carried by the smoke and shorted smoke recovery methods (low temperature), the contradiction between huge total quantity of the pollutants and difficult treatment of the pollutants due to low concentration, and the contradiction between a lot of manual operations in bad environment and shorted automatic methods are solved, the enrichment of high-temperature smoke and the efficient recovery of the smoke energy in the electrolysis process are realized, the enrichment and the centralized treatment of the pollutants in the smoke are realized at the same time, and finally, the ultrahigh energy efficiency( the energy utilization rate is higher than 70%, and the tonnage aluminum energy consumption is lower than 10000 kWh), the ultralow emission ( the emission of main pollutants (such as PFC) is reduced by above 90%) and the full automation (the workshop staff is reduced by above 80%) in the whole aluminum smelting process can be realized.

The invention discloses a single-machine double-temperature-area heat-pump water heater. The single-machine double-temperature-area heat-pump water heater comprises a waste heat recovery system, a water circulation system, a heat pump circulation system and a heat exchange system, wherein the heat exchange system realizes heat exchange of the waste heat recovery system, the water circulation system and the heat pump circulation system. According to the single-machine double-temperature-area and heat-pump water heater, through the combination of waste heat recovery, single-machine and double-control and double-temperature-area water storage, the energy loss is reduced to the maximum extent, the ultrahigh energy efficiency ratio is effectively realized, meanwhile, the requirement for a refrigerant is low, the universality is high, the manufacturing cost and the operation and maintenance cost are low, the service life is long, the requirement for using environment is low, and the application range is wide.

The invention belongs to the field of organic electroluminescence device materials and discloses a polymer containing tetraphenyl silicane and carbazole unit as well as a preparation method and an application of the polymer. The polymer has the following structural formula, wherein the structural formula is as shown in the specification. In the formula, R is alkyls of C1-C20, and n is an integer of 10-100. According to the polymer containing tetraphenyl silicane and carbazole unit, a tetraphenyl silicane derivative is an ultrahigh energy gap main body material and has extremely high triplet state energy level; the polycarbazole is an important electroluminescent polymer and has excellent hole transport performance, and alkyl modification can be performed on the 9th site, so that the dissolving property and film-forming property of polycarbazole are improved. Moreover, the tetraphenyl silicane is introduced into a main chain of the polycarbazole, so that the efficiency of an organic electroluminescence device is improved.

The invention discloses a motor copper rotor die casting device and a die casting method, and belongs to the technical field of non-ferrous metal smelting and rolling processing. The motor copper rotor die casting device comprises a low-frequency induction furnace and a die casting machine. The heating power of the low-frequency induction furnace is 0-50 KW, the die casting machine comprises a front die assembly, a middle mold assembly, a rear mold assembly and a pressing mold assembly; and the front mold assembly, the middle mold assembly, the rear mold assembly and the injection mold assembly are sequentially arranged and spliced and combined. According to the motor copper rotor die casting device and the die casting method, a middle mold frame and a rear mold frame are fixedly connectedthrough screw thread connection, the middle mold frame and the rear mold frame are connected through limiting rods, limiting holes, square columns and bolt holes, and the mold frames are convenient to detach; and meanwhile, the produced castings are free of cracks, the filling rate is excellent, the adverse defects such as sticky mold are avoided, and a motor of a pure copper rotor of the die casting can reach the ultrahigh energy efficiency grade of IE 4.

The invention provides a preparation method for a battery based on metal lithium powder and a graphite negative electrode. The preparation method comprises the following steps: preparing a metal lithium powder/graphite negative electrode slice and a vanadium pentoxide positive electrode slice; welding the tabs of the positive and negative electrode slices; preparing an organic solvent with a lithium hexafluorophosphate concentration of 1 mol/L as an electrolyte of the battery; cutting a Celgard polymer film used as a battery diaphragm into a rectangular piece with a width of 60 mm and a lengthof 610 mm; winding the electrode slices with a coiler so as to form a lithium battery cell; filling a cylindrical steel shell, with a bottom diameter of 18 mm and a height of 65 mm, with the lithiumbattery cell so as to form a 18650 type lithium battery cell, and transferring the 18650 type lithium battery cell to an argon-protected glove box; injecting the electrolyte; and carrying out sealingso as to obtain the finished soft pack battery. According to the invention, the lithium-free positive electrode material vanadium pentoxide is adopted, and the metal lithium powder is introduced intothe graphite negative electrode slice, so the 18650 type lithium battery cell is formed; and the preparation method has the advantages of simple process, easy enlargement production and large-scale application potential.

Provided is an ultrahigh energy efficiency 250W two-pole three-phase asynchronous motor which comprises a stator and a rotor. Design of external diameters, internal diameters, length of iron cores, number of punching sheet grooves and shape and size of the grooves of the stator and the rotor is systematically optimized so that stator winding loss, rotor winding loss and iron core loss are substantially reduced. Compared with existing similar products, total energy loss amount of the ultrahigh energy efficiency 250W two-pole three-phase asynchronous motor is reduced from 114.7W to 64.8W, and reduction is 49.6% so that energy is substantially saved under the premise of the same output power of 250W. Energy conversion efficiency is increased from 68.5% to 79.4%, and increment is 10.9%. Compared with 250W two-pole three-phase asynchronous motor efficiency standard requirement of 77.0% which is specified in the highest grade of IE3 of international motor energy efficiency grade standard, energy conversion efficiency is enhanced for 2.4% so that energy conversion efficiency is substantially enhanced, and the ultrahigh energy efficiency 250W two-pole three-phase asynchronous motor can work in a continuous and stable way under the state of lower input power.

The invention provides a pyrochlore nanocrystalline dielectric film with ultrahigh energy storage performance and a preparation method of the pyrochlore nanocrystalline dielectric film, wherein the pyrochlore nanocrystalline dielectric film includes following requirements: (Pb<1-x>Ca<x>)ZrO<3>, x = 0.10-0.14; the pyrochlore nanocrystalline dielectric film is composed of pyrochlore phase nanocrystalline grains. The film material has ultrahigh energy storage performance: the electric field breakdown strength is 5MV/cm, the energy storage density is 91.3 J/cm3, and the energy storage efficiency is 85.3%. The preparation method of the material comprises the following steps: firstly, preparing a precursor solution according to the proportion of chemical components, then placing the obtained solution on a substrate material for spin coating to form a film, then drying the film, repeating the process for several times to reach the required thickness, and finally annealing the material in a rapid heating furnace to obtain the calcium-doped lead zirconate film material. As a dielectric material, the film material has a wide application prospect in energy storage devices such as ultra-high-speed pulse power devices and film capacitors.

The invention belongs to the technical field of photoelectric detectors, and discloses a full-suspension small-capacitance detector, a control method and application. The full-suspension small-capacitance detector is characterized in that a detector array is provided with a plurality of detector units which are distributed in an array; the detector unit is provided with an N-type lightly doped silicon substrate, a P-type heavily doped cathode layer is arranged on the upper surface of the silicon substrate, a P-type heavily doped floating electrode layer is arranged at an interval with the cathode layer, and an N-type heavily doped anode layer is arranged on the lower surface of the silicon substrate; a silicon dioxide layer is laid on the upper surface of the floating electrode layer; andan Al electrode layer is laid on the surfaces of the cathode layer and the anode layer. According to the invention, the detector array with ultrahigh energy resolution and position resolution and ultrafast time response capability is realized. The floating electrode design is adopted, the electrode area is greatly reduced, the detector capacitance is reduced, and the noise is reduced. Meanwhile, the array dead zone of the detector is reduced, and the charge collection rate and detection efficiency are improved.