37results about How to "Reduce reversibility" patented technology

A positive active material for lithium secondary batteries, includes a composite oxide including an oxide which is represented by the composite formula LixMnaNibCocO2 and has an α-NaFeO2 structure, and an impurity phase including Li2MnO3. The values a, b, and c are within such a range that in a ternary phase diagram showing the relationship among these, (a, b, c) is present on the perimeter of or inside the quadrilateral ABCD defined by point A (0.5, 0.5, 0), point B (0.55, 0.45, 0), point C (0.55, 0.15, 0.30), and point D (0.15, 0.15, 0.7) as vertexes, and 0.95<x / (a+b+c)<1.35.

A shear strain type pressure sensor comprises a shell. A magnetic field generating device in the shell comprises two magnetic poles which are opposite in magnetism and correspond to each other oppositely. A shear plate is arranged in the gap between the two magnetic poles, a rubber sheet is fixed on one side of the shear plate and in full contact with the end face of the first magnetic pole in the two magnetic poles, and a first electrode is fixed on the other side of the shear plate and fixedly provided with a magnetorheological elastomer. A second electrode is fixed on the other side of the magnetorheological elastomer, the second electrode is fixedly connected with the end face of the second magnetic pole in the two magnetic poles, the first electrode and the second electrode are electrically connected with a signal conditioning module, one end of the shear plate upwards extends to penetrate through an S-shaped force measuring piece and then extends out of the upper end face of the shell, a supporting plate used for supporting the S-shaped force measuring piece is fixed in the shell, a stop piece is arranged on the shear plate, and the lower end face of the stop piece is in contact with the upper end face of the S-shaped force measuring piece. The shear strain type pressure sensor is high in resolution, high in sensitivity, and large in force testing range.

A novel hydrogel delivery systems useful for encapsulating and releasing pharmaceuticals or chemicals is disclosed where water soluble polymers containing crosslinker repeating units that associate or dissociate with complementary crosslinking repeating units or separate linkers to reversibly crosslink the hydrogel. In an exemplary embodiment, a DNA crosslinked hydrogel displays photoreversibility. An exemplary hydrogel delivery system comprises DNA polymer conjugates, wherein complementary DNA sequences are crosslinked with polymer chains and hybridization of the DNA sequences is controlled by photoresponsive moieties. Such hydrogels can be used to release drug molecules and / or other therapeutic reagents. The exemplary hydrogel employs photosensitive azobenzene moieties that are incorporated into the DNA crosslinker units. The azobenzene moieties respond to different wavelengths of light so that the state of azobenzene isomerization is induced by the proportion of visible and UV light irradiated. The isomer state of the azobenzene dictates whether the complementary DNA sequences hybridize to cross link the DNA polymer conjugates. Thus, irradiation of light (visible or UV) can transform the hydrogel network between a sol and any of multiple gel states to regulate the degree of crosslinking between complementary DNA sequences and, therefore, provide a profile of release of a hydrogel encapsulated pharmaceutical or other chemical.

An anode material for use in a metal secondary battery contains MgH2, and a metal catalyst which is in contact with the MgH2 and improves the reversibility of a conversion reaction. The metal secondary battery includes a cathode active material layer, an anode active material layer, and an electrolyte layer that is formed between the cathode active material layer and the anode active material layer, and the anode active material layer contains the anode material. A method for the production of an anode material for use in a metal secondary battery includes a contacting step of contacting MgH2 with a metal catalyst which improves the reversibility of a conversion reaction.

The invention relates to the technical field of fluorine chemical engineering, in particular to an application method for preparing an electronic grade hydrogen fluoride process device. The method ischaracterized in that high-boiling residues HAsF6 and MAsF6 are produced through arsenic impurity in fluorine oxidized hydrogen fluoride, and the pure electronic grade hydrogen fluoride is separated from a multi-component composition through volatility difference of the high-boiling residues HAsF6 and MAsF6, HF and other components and multiple equilibrium processes. A rectification technical process adopts reflux liquid and upward gas to form gas and liquid countercurrent contact in a distillation tower, volatile component products with high purity can be obtained from the top of the tower, and non-volatile component products with high purity can be obtained from the bottom of the tower. The main component of tail gas produced from hydrogen fluoride rectification mainly comprises HF steam, the tail gas further comprises the following volatile components: SO2, SiF4, PF3, POF3, AsF5, SF6 and PF5, and the tail gas can be completely washed with pure water, condensed and recycled to prepare technical grade hydrofluoric acid.

This invention relates to a negative electrode material, a method for producing this material, and to a negative electrode and a lithium-ion battery comprising this material. The material of the invention comprises an active phase consisting of a material M based on Al, Si, Sn, Sb or a mixture thereof, and a support phase consisting of a material XaYbOc, where: O is an oxygen; Y is a cation with oxidation degree m=3, 4, 5 or 6; X is a cation with oxidation degree d=1, 2, 3, 4 or 5, X ensuring the electroneutrality of XaYbOc; and where: c is such that 2≦c≦10; b is such that 1≦b≦4; and a=(2c−bm) / d. An interface of mixed composition exists between the XaYbOc material and the active phase M, the said interface consisting of the elements M, X, Y and O. XaYbOc may be for example BPO4. The production method comprises a first heat treatment of a mixture of oxides of X and Y to obtain a material XYO4; a cooling followed by a grinding of the material obtained; a mixing of the ground material with M; a second heat treatment of the mixture obtained to obtain the said material of the invention; and a cooling of the said material.

The invention discloses a multi-column strip-shaped packaging machine, which comprises a rack, and a paper supporting part, a filling and metering device, a bag forming mechanism, a middle sealing device, a horizontal sealing device, a cutter device, a bag turnover mechanism and a sliding chute arranged on the rack. The cutter device comprises cutter support plates, two cutter shafts, cutters, support rods and bag guiding supports; the two cutter shafts are arranged on the cutter support plates at an interval; the cutters are arranged on the cutter shafts; the two cutter shafts are connected with air cylinders; the support rods are arranged between the two cutter support plates, and are located above the cutters; the bag guiding supports are arranged on the support rods; and loaded packaging bags are cut by the cutters after passing through the bag guiding supports. According to the multi-column strip-shaped packaging machine provided by the invention, the loaded packaging bags are limited through the bag guiding supports and can be smoothly fed into a position between the cutters so as to be cut.

The present invention relates to a method for increasing the binding reversibility of a ω-conotoxin to a N-type calcium channel, which comprises preparing a ω-conotoxin having a Ile and / or Ala residue at a position of amino acid (11 and / or 12), respectively in the second loop between cysteine residues (2 and 3) of the ω-conotoxin represented by the formula I, such that the prepared ω-conotoxin has the increased binding reversibility to N-type calcium channel. In addition, the present invention relates to a novel ω-conotoxin and a pharmaceutical composition having plausible properties in view of blocking activity to and specificity to N-type calcium channel, and dramatically improved binding reversibility to N-type calcium channel.

The invention discloses a lithium source active material, a positive pole piece, a lithium ion capacitor and a preparation method thereof, wherein the positive pole piece comprises a current collector, the lithium source active material, a capacitor material, a conductive agent and a binding agent, wherein the lithium source active material is preferably one or more of Li5FeO4, Li6CoO4, Li6MnO4, and Li5FexCo1-xO4; the capacitor material is one or more of graphene, activated carbon, porous carbon and other nano materials; and the weight percentages of the following raw materials as follows: 45-5% of lithium source active material, 85-60% of capacitor material, 8-1.0% of conductive agent and 4-1% of binding agent. The positive pole piece has the advantages of being safe, uniform in lithium intercalation, low in technological equipment requirement, high in operability and the like, and is suitable for batch production.

The invention discloses a triangular paper folding device and method for paper jams and an automatic regulating mechanism. The automatic regulating mechanism comprises a conveyor belt, the triangular paper folding device, a mounting plate, a transmission component, a first drive device and a second drive device, wherein one end of the mounting plate is connected with the triangular paper folding device, and the other end of the mounting plate is connected with the transmission component; the transmission component is connected with the first drive device and the second drive device. The triangular paper folding device comprises a triangular paper folding block, a horizontal paper folding assembly and an oblique paper folding assembly, wherein the surface, needing to be turned over, of paper is turned over by 90 degrees through the triangular paper folding block, the paper continues to be turned over by 90 degrees by the horizontal paper folding assembly and the oblique paper folding assembly, and then paper folding is completed. The first drive device is used for regulating the horizontal position of the triangular paper folding device, and the second drive device is used for regulating the vertical position of the triangular paper folding device. The triangular paper folding device is simple in structure, low in cost, convenient and reliable to regulate and high in degree of automation, and improves the paper folding precision.

The invention relates to the technical field of fluorine chemicals and in particular relates to electron-grade hydrogen fluoride preparation procedures which are characterized by comprising an evaporation circulation oxidation reaction procedure, a circulating fluidized bed distillation procedure and a washing, absorption and condensation procedure.

A coated article includes an electrochromic layer made of tungsten trioxide doped with metal selected from molybdenum, niobium, and / or titanium. A method for making the device housing is also described there.

The invention belongs to the technical field of fluorine chemistry, and more specifically relates to an electronic grade hydrogen fluoride preparation device. The electronic grade hydrogen fluoride preparation device comprises a transpiration circulation reactor, a circulating fluidized bed distillation column, and a washing absorption condensing tower assembly.

The invention discloses a triangular paper folding device and method for paper jams and an automatic regulating mechanism. The automatic regulating mechanism comprises a conveyor belt, the triangular paper folding device, a mounting plate, a transmission component, a first drive device and a second drive device, wherein one end of the mounting plate is connected with the triangular paper folding device, and the other end of the mounting plate is connected with the transmission component; the transmission component is connected with the first drive device and the second drive device. The triangular paper folding device comprises a triangular paper folding block, a horizontal paper folding assembly and an oblique paper folding assembly, wherein the surface, needing to be turned over, of paper is turned over by 90 degrees through the triangular paper folding block, the paper continues to be turned over by 90 degrees by the horizontal paper folding assembly and the oblique paper folding assembly, and then paper folding is completed. The first drive device is used for regulating the horizontal position of the triangular paper folding device, and the second drive device is used for regulating the vertical position of the triangular paper folding device. The triangular paper folding device is simple in structure, low in cost, convenient and reliable to regulate and high in degree of automation, and improves the paper folding precision.

The invention relates to the technical field of fluorine industry, in particular to an application method of a circulating fluidized bed degasser for preparation of hydrogen fluoride. The applicationmethod is characterized in that a hydrogen fluoride liquid with heavy components H2SO4 and H2O removed through rectification enters the device through a feed liquid pipe designed at the central part of a circulating fluidized bed degassing tower and is injected into a liquid receiving tray; when the hydrogen fluoride liquid flows down to a primary fin plate, volatile components SO2, SiF4, CO2 andH2S are vaporized to form rising steam; and the purity of the non-volatile hydrogen fluoride liquid which is condensed by a multi-stage cyclone separation condenser and enriched at the bottom of the tower is continuously increased, thus achieving the purpose of removing light components.

The invention relates to the technical field of fluorine chemical industry, particularly to a fluoride hydrogen preparation circulating fluidized bed degassing apparatus, wherein a circulating fluidized bed degassing tower body is divided into an upper section and a lower section, the upper section is a rectifying section, the lower section is a stripping section, the rectifying section is provided with a multi-stage cyclone separation condenser, and the stripping section is provided with a thermostat.

The invention relates to the technical field of fluorine chemical engineering, in particular to a rectification device for preparing electronic grade hydrogen fluoride. The rectification device for preparing the electronic grade hydrogen fluoride is characterized in that a circulating fluidized bed distillation tower body is divided into an upper section and a lower section; the upper part of thecirculating fluidized bed distillation tower body is a rectification section; the lower part of the circulating fluidized bed distillation tower body is a stripping section; a multi-stage hydrocycloneseparating condenser is designed on the rectification section to achieve purposes that gas and liquid are separated through cyclone, a liquid film is prone to be formed on the internal wall of a cylinder body, and rising steam and the downflow liquid film transfer mass to each other; and a constant temperature reboiler is designed on the stripping section.

The invention relates to the technical field of fluorine chemical industry, particularly to a fluoride hydrogen preparation circulating fluidized bed degassing apparatus, wherein a circulating fluidized bed degassing tower body is divided into an upper section and a lower section, the upper section is a rectifying section, the lower section is a stripping section, the rectifying section is provided with a multi-stage cyclone separation condenser, and the stripping section is provided with a thermostat.

The invention discloses a multi-column strip-shaped packaging machine, which comprises a rack, and a paper supporting part, a filling and metering device, a bag forming mechanism, a middle sealing device, a horizontal sealing device, a cutter device, a bag turnover mechanism and a sliding chute arranged on the rack. The cutter device comprises cutter support plates, two cutter shafts, cutters, support rods and bag guiding supports; the two cutter shafts are arranged on the cutter support plates at an interval; the cutters are arranged on the cutter shafts; the two cutter shafts are connected with air cylinders; the support rods are arranged between the two cutter support plates, and are located above the cutters; the bag guiding supports are arranged on the support rods; and loaded packaging bags are cut by the cutters after passing through the bag guiding supports. According to the multi-column strip-shaped packaging machine provided by the invention, the loaded packaging bags are limited through the bag guiding supports and can be smoothly fed into a position between the cutters so as to be cut.

The invention relates to a gastrodia elata medicine for treating insomnia. The gastrodia elata medicine comprises the following components by weight ratio: gastrodia elata powder of 320-380g and thinning agents of 20-200g. The gastrodia elata is prepared with the components of the medicine, so that the calming and hypnotic function is excellent, the toxicity is small and the effect of treating neurasthenia and insomnia headache is excellent.

The invention relates to the technical field of fluorine chemical industry, in particular to a method for preparing hydrogen fluoride circulating fluidized bed rectification device, which is characterized in that: the crude hydrofluoric acid liquid flows from the feed liquid conduit designed in the middle of the circulating fluidized bed rectification tower Enter and inject into the liquid receiving plate, the crude hydrofluoric acid liquid is evenly distributed in the liquid plate and then drips into the reboiler. The disk enters the multi-stage cyclone condenser, and the liquid droplets carried by the rising steam are separated by the cyclone to form a continuous liquid film on the wall of the multi-stage cyclone condenser. The purity of the hydrogen fluoride liquid condensed by the condenser is continuously improved and drawn out from the bottom.

A shear strain type pressure sensor, comprising a housing, the magnetic field generating device in the housing has two opposite magnetic poles and corresponding to each other, a shearing plate is arranged in the space between the two magnetic poles, and the shearing plate One side of the shear plate is fixed with a rubber sheet, which is in full contact with the magnetic end surface of the first magnetic pole of the two magnetic poles, and the other side of the shear plate is fixed with a first electrode, and the first electrode is fixed with a magnetorheological Elastic body, the other side of the magnetorheological elastic body is fixed with a second electrode, the second electrode is fixed to the magnetic pole surface of the second magnetic pole in the two magnetic poles, the first electrode, the second electrode and a signal conditioning module Electrically connected, one end of the shearing plate extends upwards through an S-shaped force-measuring member and then protrudes from the upper surface of the housing, and the housing is fixed with a support plate for supporting the S-shaped force-measuring member. A stopper is arranged on the plate, and the lower end surface of the stopper is in contact with the upper end surface of the S-shaped force-measuring piece. It has high resolution, high sensitivity and large force range.

The invention relates to the technical field of fluorine chemical engineering and specifically relates to a use method of a circulating fluidized bed rectification device for preparing hydrogen fluoride. The use method is characterized by comprising the steps that a coarse hydrofluoric acid solution enters from a liquid material guiding pipe which is arranged in the middle of a circulating fluidized bed rectification tower, the coarse hydrofluoric acid solution is injected into a liquid receiving disk, the coarse hydrofluoric acid solution is evenly distributed by the liquid receiving disk anddrops into a reboiler, the coarse hydrofluoric acid solution is gasified to form rising steam when flowing downwards to various stages of fin plates, the coarse hydrofluoric acid solution passes through the liquid receiving disk to enter a multistage cyclone condenser, liquid drops carried by the rising steam can be cyclone separated to form a continuous liquid film on a barrel body wall of the multistage cyclone condenser, in this case, the content of a volatile component hydrogen fluoride in the rising steam is continuously improved, the purity of the hydrogen fluoride liquid condensed by the multistage cyclone condenser is continuously improved, and the hydrogen fluoride liquid is drained out from the bottom.

The invention relates to the technical field of fluorine chemical engineering, in particular to an application method for preparing an electronic grade hydrogen fluoride process device. The method ischaracterized in that high-boiling residues HAsF6 and MAsF6 are produced through arsenic impurity in fluorine oxidized hydrogen fluoride, and the pure electronic grade hydrogen fluoride is separated from a multi-component composition through volatility difference of the high-boiling residues HAsF6 and MAsF6, HF and other components and multiple equilibrium processes. A rectification technical process adopts reflux liquid and upward gas to form gas and liquid countercurrent contact in a distillation tower, volatile component products with high purity can be obtained from the top of the tower, and non-volatile component products with high purity can be obtained from the bottom of the tower. The main component of tail gas produced from hydrogen fluoride rectification mainly comprises HF steam, the tail gas further comprises the following volatile components: SO2, SiF4, PF3, POF3, AsF5, SF6 and PF5, and the tail gas can be completely washed with pure water, condensed and recycled to prepare technical grade hydrofluoric acid.

A metal negative electrode secondary battery at least includes a positive electrode, a negative electrode, and an electrolyte. The negative electrode at least includes a support and a first metal. The support at least includes a carbon particle. The carbon particle is provided with a plurality of open pores. The first metal is held in the open pores. The first metal is an alkali metal or an alkaline earth metal. The negative electrode is configured to exchange an electron through dissolution reaction and deposition reaction of the first metal.

A method for identifying a patient as a candidate for treatment with a long acting beta agonist comprises isolating a biological sample from a patient and identifying the presence or absence of at least one haplotype C. The presence of at least one haplotype C in a patient sample indicates that the patient is a good candidate for treatment. For example, the patient may have a respiratory disease such as an obstructive airway disease.