118results about How to "Maintain structural integrity" patented technology

The invention belongs to the technical field of batteries, and particularly relates to a lithium ferrite lithium supplement agent and a preparation method and application thereof. Compared with the prior art, a solid electrolyte coating layer is formed on the surface of the carbon-doped lithium iron oxide material through a low-temperature molten salt method, so that air can be effectively isolated, the air stability of the material is improved, the lithium removal phenomenon is reduced, and the structural integrity and lithium supplement performance of the material are kept; and the lithium ferrite lithium supplement agent combines the high theoretical lithium supplement capacity of Li5FeO4 and the excellent ionic conductivity of the solid electrolyte, so that the electrochemical performance of the material can be improved while the high lithium supplement capacity is maintained, and a new technical scheme is provided for commercial application of the high-energy-density lithium ion battery.

The invention provides photo-crosslinking conductive ink based on aliphatic polycarbonate as well as a preparation method and application of the photo-crosslinking conductive ink. The photo-crosslinking conductive ink comprises an aliphatic polycarbonate polymer, a plasticizer, a crosslinking agent, a crosslinking catalyst and a photo-crosslinking agent. According to the invention, a carbonate monomer 5-methyl-5-carboxyl trimethylene carbonate initiated by PEG2000 is adopted, and an aliphatic polycarbonate polymer is synthesized through a copolymerization reaction and is used as a main matrix material of the conductive ink; the conductive ink not only has good conductivity, but also has biocompatibility and environmental friendliness, and the application range of the conductive ink in the fields of medical instruments, biosensors and the like is widened; the excellent mechanical property ensures that the conductive ink can keep structural integrity and functional stability in practical application, and the conductive ink is particularly suitable for flexible electronic devices and wearable equipment which need to be frequently bent and stretched. The preparation steps are simple and convenient, the process is controllable, raw materials are easy to obtain, energy consumption in the process is low, and the cost advantage is achieved.

The invention discloses a purification method and a purification device for crystallized magnesium, and relates to the field of magnesium metal smelting. The method comprises the following steps: under the protection of an inert atmosphere, firstly carrying out pressure-applying melting treatment on a magnesium material to be smelted, and then carrying out pressure-applying filtering treatment on a product obtained after the melting treatment, so as to complete the flux-free smelting process of the magnesium material. And meanwhile, the metal magnesium liquid and most of the oxide shells are separated by utilizing the liquidity difference between the liquid metal magnesium and the solid oxide shells. Compared with a conventional smelting process without pressure application, the method has the advantages that the melting rate of the crystallized magnesium can be remarkably increased, most of oxide impurities are removed, a series of pollution problems caused by flux use are solved from the source, and low-cost, high-efficiency and high-quality smelting of the crystallized magnesium is realized.

The invention discloses a barium titanate-based leadless piezoelectric ceramic material and a preparation method and application thereof, and relates to the technical field of functional materials, the chemical formula of the barium titanate-based leadless piezoelectric ceramic material is Ba0. 9Sr0. 1Ti1-xSnxO3, x = 0-0.10, and x represents a mole fraction. By regulating and controlling the concentration of Sn ions in the BT-based lead-free piezoelectric ceramic, a multiphase structure with flat free energy is formed near the room temperature, meanwhile, an unconventional short-range disorderly-arranged polar snow-mud-state domain structure is induced, an extremely good domain change dynamic behavior is shown under the action of an external field, and the piezoelectric ceramic is prepared. Meanwhile, excellent piezoelectric property, electrostrictive property, electrocaloric property and mechanical property are obtained, and a candidate material is provided for a new generation of multifunctional high-precision electronic information devices.

A paper packing belt comprises a long-strip-shaped paper roll, the long-strip-shaped paper roll comprises a plurality of packing strips, the packing strips are bonded and fixed together side by side through environment-friendly glue, the cross section of each packing strip is flat, and each packing strip is composed of a composite layer and comprises a base material layer located in the middle and abrasion-resistant layers located on the two sides of the base material layer. The paper packing belt designed by the utility model is excellent in environmental protection property, mechanical strength, wear resistance, waterproof performance and the like, not only meets the high-standard requirements of modern logistics and packing industries on packing materials, but also provides a new thought and direction for research, development and application of environment-friendly packing materials. The wide application of the plastic can powerfully promote the development of the environmental protection industry, reduces plastic pollution, and contributes to the construction of a green and sustainable society.

The invention relates to the technical field of biological medicine, and particularly discloses an SIRT6 outer vesicle freeze-drying protective agent, SIRT6 outer vesicle freeze-dried powder and a preparation method and application thereof. The SIRT6 external vesicle freeze-drying protective agent provided by the invention is prepared from the following components: 0.8 to 1.5 g / 100 mL of polyvinyl alcohol, 0.5 to 0.8 g / 100 mL of dextran, 5.5 to 6 g / 100 mL of trehalose, 2.5 to 4 g / 100 mL of mannitol, 0.35 to 0.4 g / 100 mL of vitamin C, 0.15 to 0.3 g / 100 mL of hydroxyectoine, 0.8 to 1.2 g / 100 mL of superoxide dismutase and a solvent which is a phosphate buffer solution. The invention further provides freeze-dried powder of the SIRT6 external vesicles and a preparation method of the freeze-dried powder. According to the SIRT6 outer vesicle freeze-drying protective agent, the structural damage of freeze-drying to the SIRT6 outer vesicle can be reduced, and the structural integrity and functionality of the SIRT6 outer vesicle are ensured.

The invention discloses a platinum-based high-entropy alloy self-supporting catalyst as well as a preparation method and application thereof. The preparation method of the catalyst comprises the following steps: S1, dissolving a platinum source, an iron source, a cobalt source, a molybdenum source and a manganese source in a solvent according to the molar ratio of platinum to iron to molybdenum to cobalt to manganese being 1: 1: 1: 1: 1 to obtain a precursor solution; s2, dipping the carbon felt in a polyvinyl alcohol solution, and drying to obtain a substrate; and S3, dipping the substrate in the precursor solution, drying, and carrying out Joule heat flash evaporation to obtain the catalyst. According to the invention, five metals are added according to an equal molar ratio, the catalytic efficiency of the water electrolysis catalyst is improved by utilizing a high-entropy effect, the production cost of the catalyst is reduced, meanwhile, the long-time stability of the catalyst is improved by adding a self-supporting material, and an efficient and stable water electrolysis process in an acidic electrolysis environment is realized.

The invention discloses a flat functional current collector and a preparation method thereof, and relates to the technical field of current collectors. The method specifically comprises the following steps that S1, an organic film and a metal foil are attached to the same release film, and interfaces in the thickness direction are in contact; an intermediate product A is obtained; s2, a metal layer is deposited on the face, away from the release film, of the intermediate product A, and an intermediate product B is obtained; and S3, removing the release film in the intermediate product B, and depositing a metal layer on the surface again to obtain the functional current collector. A continuous conducting layer can exist in the edge area of the functional current collector prepared by the method, and a tab is not required to be reserved or welded like a traditional current collector, so that the structural smoothness of the current collector is kept.

The invention relates to the technical field of biological medicines, in particular to a preparation method of protein cross-linked nano affinity microspheres, which comprises the following steps: preparing carboxylated silicon dioxide nano microspheres with the particle size of 500nm by adopting a sol-gel method, mixing tetraethoxysilane and ammonia water according to the volume ratio of 1: (3 + / -1), reacting in an ethanol solution at 40 DEG C for 6 hours, filtering, washing, and drying to obtain the protein cross-linked nano affinity microspheres. And centrifuging to obtain a microsphere precipitate, washing with deionized water for three times to finally obtain a nano microsphere suspension of which the surface is rich in carboxyl, and controlling the solid content to be 10 + / -0.5 mg / mL. The capturing efficiency of the finally prepared protein cross-linked nano affinity microspheres for exosomes reaches 95.0%, the binding capacity reaches 28.5 mu g / mg, the purity of the extracted exosomes is higher than that of an ultracentrifugation method, the biological activity and structural integrity of animal cell exosomes and plant cell exosomes are completely kept, and the protein cross-linked nano affinity microspheres are suitable for large-scale industrial production. The problems that in a traditional exosome extraction method, the recovery rate is low, impurity pollution is serious, exosome activity is damaged, and the application range is limited are solved.

The invention discloses a grid stress slow-release structure of a split-gate MOSFET and a preparation method of the grid stress slow-release structure. The structure comprises a semiconductor epitaxial layer, a groove formed in the semiconductor epitaxial layer, a grid insulating layer arranged in the groove and at least one mounting cavity defined by the grid insulating layer. A gate conducting layer is arranged in each mounting cavity, a buffer dielectric layer is arranged between the outer surface of the gate conducting layer and the inner wall of the corresponding mounting cavity, and the thermal expansion coefficient of the buffer dielectric layer is smaller than that of the gate conducting layer. According to the technical scheme, a stress buffer interface can be formed between the gate conducting layer and the gate insulating layer, so that mechanical stress generated by thermal expansion difference is reduced, and the stability of the gate insulating layer and the reliability of the device are improved.

The invention provides a geopolymer material compositely modified by nano boron chloride-polyimide fiber-meta-aramid fiber and a preparation method of the geopolymer material, and aims to solve the technical problem that the strength, toughness, durability and the like of the existing geopolymer material are difficult to meet the requirements. The composite modified geopolymer material is prepared from the following raw materials in parts by weight: 300 parts of sand, 70 to 90 parts of mineral powder, 15 to 25 parts of fly ash, 0.13 to 0.17 part of nano boron chloride, 0.7 to 0.9 part of polyimide fiber, 0.3 to 0.5 part of meta-aramid fiber, 0.05 to 0.11 part of a coupling agent and 20 parts of an alkali activator. The composite modified geopolymer material is excellent in performance, the toughness and durability of the geopolymer material can be improved, the composite modified geopolymer material has great significance in prolonging the service life of a building material, the preparation process is simple, the raw materials are non-toxic and harmless and wide in source, the production process is free of pollution and low in price, and the composite modified geopolymer material has good economic and social benefits.

The application belongs to the technical field of sand consolidation agent preparation, and particularly relates to a sand consolidation agent and a preparation method thereof. The sand consolidation agent is composed of component A and component B. The component A is composed of the following raw materials: a diphenyl phenolic epoxy resin, hexakis(4-hydroxymethylphenoxy)cyclotriphosphazene, modified nano calcium zirconate, cage octakis(aminophenyl)silsesquioxane, n-butyl glycidyl ether, KH-550 silane coupling agent, polyether amine, fumed silica and defoaming agent. The component B is composed of the following raw materials: polyborosilazane and 2-ethyl-4-methyl imidazole. The cage octakis(aminophenyl)silsesquioxane in the raw material of the sand consolidation agent strengthens the network structure stability through chemical bonding, the hexakis(4-hydroxymethylphenoxy)cyclotriphosphazene realizes thermal stabilization through chemical bonding and physical dispersion, and the modified nano calcium zirconate provides physical support. The three components synergistically improve the heat resistance of the system.

The invention provides composite cementing material building floor sound insulation mortar and a preparation method thereof, and belongs to the technical field of novel building materials. Aiming at strong-alkalinity, high-humidity and intermittent impact coupling special environments such as hospitals and the like, a geopolymer precursor composed of metakaolin and blast furnace slag micro powder and an alkaline activator are introduced and interwoven with a cement hydration product to form an alkali-corrosion-resistant composite gel matrix; meanwhile, the composite corrosion inhibitor with the pH response release characteristic is adopted, and corrosion inhibition components are released during strong alkaline invasion to form a composite protective film; and regenerated elastic particles subjected to surface silanization treatment are selected as a damping filler. Under the synergistic effect of the three components, the mutually aggravated failure cycle of chemical erosion and mechanical impact is interrupted, so that the long-term sound insulation stability, mechanical durability and corrosion resistance of the sound insulation mortar in a severe environment are remarkably improved.

The invention relates to the field of carbon nanomaterials, and particularly discloses a preparation and storage method and application of near-infrared super carbon nanodots. The invention provides a preparation method of super carbon nanodots, which comprises the following steps: carrying out primary assembly by standing a carbon nanodot solution at normal temperature for a preset period of time, and then carrying out secondary assembly under low-temperature, dry and sealed conditions, thereby obtaining the super carbon nanodots. The light absorption range of the super carbon nanodots prepared by the method approaches to a near-infrared region, the light absorption wave band is greatly widened, and the super carbon nanodots show potential application value in the medical field. Compared with the prior art, the preparation method provided by the invention can be used for successfully preparing in a dry environment, and the dependence on a water medium in a traditional method is abandoned. Meanwhile, the super carbon nanodot prepared by the invention has the capability of being stored for a long time in an aqueous solution or dry state under a low-temperature condition; wherein when stored in a dry state, the structural stability and the performance integrity of the composite material can be more effectively maintained, and the effective storage life of the composite material is prolonged.

The invention relates to the technical field of safety assessment of buses, and discloses a safety assessment method and system for a tubular bus structure, and the system comprises a data collection unit, a data preprocessing unit, a feature extraction unit, a safety assessment unit, and a result output unit. According to the invention, electrical, thermal, mechanical and environmental characteristics are integrated, single-factor evaluation limitation is avoided, and the safety condition is accurately mastered; abnormal data are removed through abnormal value screening and replacement, interference is reduced, and data quality is improved through standardization processing; the resistance, the power, the heat generation amount, the heat conduction rate, the thermal expansion amount, the stress and the like are accurately calculated based on various data, and a combined influence factor can be obtained, so that a basis is provided for safety assessment in various aspects; by comparing the multi-dimensional safety assessment with various safety thresholds, electrical, thermal and mechanical potential safety hazards and environmental risks can be found in time, and the overall safety state can be comprehensively assessed; the evaluation result is clearly output, and a user can intuitively know the safety condition.

The invention discloses a high-porosity and high-electrocatalytic-performance cathode structure and a preparation method thereof.The preparation method comprises the following steps that S1, Ni powder and Al powder in a certain proportion are mixed to be uniform, the mixture is sprayed to the surface of a nickel net through a plasma spraying method, and a NiAl alloy coating is obtained; s2, Al elements in the NiAl alloy coating are removed through a chemical activation treatment method, and a porous nickel structure with high porosity is formed; s3, performing pretreatment operation to remove oil stains and oxides on the surface of the porous nickel structure; and S4, depositing a Mn-doped ZnCoP transition metal phosphide coating by adopting a two-step constant-potential electro-deposition method to obtain the cathode structure. According to the preparation method of the cathode structure, batch preparation can be achieved, the cost advantage is high, the prepared cathode structure has high porosity and high electro-catalytic performance, high stability under the harsh condition is achieved, and the long-term operation requirement for efficient water electrolysis hydrogen production can be met.

The invention belongs to the technical field of electrochemical catalytic materials, and relates to an efficient non-iridium nickel-based catalyst and a preparation method thereof. Comprising a nitrogen-sulfur bifunctional in-situ doped and modified nickel-cobalt layered double hydroxide nanosheet, 2, 5-dihydroxy terephthalamide, a conductive carbon carrier, a pore-forming agent, a surface wetting agent and a cross-linking agent. The nickel-cobalt layered double hydroxide is prepared by carrying out hydrothermal reaction and calcination treatment on nickel nitrate hexahydrate, cobalt nitrate hexahydrate, thiourea and melamine under an alkaline condition, and synergistic doping of nitrogen and sulfur bifunctional groups is realized; organic-inorganic interface interaction is introduced into 2, 5-dihydroxy terephthalamide, so that the structural stability of the material is enhanced. According to the invention, the current density, the mass activity, the gas production volume, the stability and the turnover performance are obviously improved. According to the invention, the defects of insufficient conductivity, limited active sites and poor cycling stability of the existing nickel-cobalt-based catalyst are effectively overcome, and a new thought is provided for developing a low-cost and high-performance electrochemical catalyst.

The utility model relates to the technical field of filters, and discloses a detachable linear cutting filter which comprises a left shell, a right shell is arranged on the right side of the left shell, fixing blocks are fixedly connected to the upper end and the lower end of the right side of the outer wall of the left shell and the upper end and the lower end of the left side of the outer wall of the right shell, and threaded holes are formed in the fixing blocks. Threaded holes are formed in the left shell and the right shell, threaded rods are in threaded connection with the interiors of the threaded holes, top discs are arranged at the tops of the left shell and the right shell, bottom discs are arranged at the bottoms of the left shell and the right shell, filter elements are arranged in the left shell and the right shell, and a plurality of fixing columns are fixedly connected to the upper ends and the lower ends of the outer walls of the filter elements at equal intervals. According to the utility model, the threaded holes and the threaded rods are arranged on the outer walls of the left shell and the right shell, so that when the filter element needs to be maintained or replaced, the filter element can be cleaned or maintained by opening the shells through the threaded rods, and the time and the labor cost are saved.

The invention discloses a construction method of an FRP (Fiber Reinforce Plastic) constrained fly ash geopolymer roadside filling body, which relates to the technical field of coal mining, and comprises the following steps: firstly, preparing a prefabricated FRP pipe, a filling mold bag, a filling material containing fly ash and the like, and a related filling system; after the working face is pushed, preparation work such as top plate supporting is carried out, and then the prefabricated FRP pipe and the filling mold bag are installed to form a to-be-filled pipe column. The fly ash and other materials are stirred by a stirring station to prepare the fly ash-based geopolymer filling material, the filling material is injected into a pipe column filling mold bag, and after filling, an ultra-high molecular weight polyethylene belt is used for winding. And constructing an air leakage prevention wall comprising a metal net, air duct cloth and a reinforcing mesh, and laying a concrete layer to seal the goaf. According to the method, waste such as fly ash is fully utilized, the construction cost is reduced, the thermal damage problem of the high-temperature mine filling body is solved, the bearing capacity of the filling body is improved by means of FRP constraint, the gob-side entry retaining roof supporting effect is guaranteed, the coal resource recovery rate is increased, and coal-pillar-free continuous mining is promoted.

The utility model relates to an air-drying storage rack for pickle processing, which comprises a shell, a plurality of groups of support frames are arranged on two opposite sides in the shell, and support pieces are arranged on the plurality of groups of support frames in a sliding manner, so that a user can perform customized storage according to pickles of different types and sizes, the storage space is utilized to the greatest extent, and the storage efficiency is improved. According to the pickle storage rack, two sets of mounting frames are arranged on the outer side of the outer shell, an induced draft fan and an exhaust fan are arranged in the two sets of mounting frames correspondingly, dustproof nets are arranged on the outer sides of the two sets of mounting frames correspondingly, it is ensured that sufficient air circulation of pickles on the storage rack is achieved, and therefore the drying efficiency and speed are improved, the drying time is shortened, and the production efficiency is improved; a first curing agent layer is arranged on the outer wall of the first epoxy resin layer, corrosion or oxidation of external liquid to the storage rack is prevented, the appearance and structural integrity of the storage rack are effectively maintained, and the service life of the storage rack is prolonged.

The utility model provides a chemical treatment fixing device for cattle pericardium. The chemical treatment fixing device comprises a base; the fixing part is connected with the base, the fixing part is provided with a first limiting block, the first limiting block is provided with a plurality of first limiting clamping grooves, and the first limiting clamping grooves are used for fixing the position of the bovine pericardium; and the lifting handle is connected with the base. The cattle pericardium fixing device can fix the cattle pericardium, and the situation that the treatment effect is poor due to the fact that the cattle pericardium moves during chemical treatment is avoided.

The application discloses a kind of multi-source knowledge collaborative retrieval and intelligent analysis method of sodium-ion battery research and development, comprising: initialization sodium battery professional knowledge base;Sodium battery field data is converted into uniform intermediate layer text format and adaptive semantic segmentation is executed, and text block vectorization storage is generated;Receive natural language question, question intention is parsed by intelligent agent and is matched with the function description text of multiple information channels preset Semantics, according to the matching result, one or more of local sodium battery knowledge base, arXiv academic papers and internet networking search channel are dynamically called, and the returned results are de-duplicated and weighted sorting integration is executed;Multi-source integration result is injected into large language model to generate structured analysis report containing material property comparison table and performance parameter summary, and a bidirectional traceability mapping relationship between the generated result and the original information source is established.The application improves the research and development decision efficiency and result reliability in the research and development scene of sodium-ion battery.

The invention discloses a preparation method of a high-fluorescence quantum yield ultra-large blue light perovskite nanosheet. The preparation method comprises the following steps: S1, preparing a precursor solution A; s2, preparing a precursor solution B; s3, synthesizing a perovskite nanosheet; s4, passivating surface defects of the nanosheets; and S5, purifying the perovskite nanosheet. The large-size planar structure of the super-large perovskite nanosheet enables the super-large perovskite nanosheet to have better optical performance stability in some applications. Higher predictability and stability are shown in the aspects of optical and electrical properties. A crystal structure of a quantum dot is relatively complex, and due to the fact that the crystal structure is small in size, the surface effect and the quantum confinement effect are more remarkable, instability of the crystal structure and uncertainty of performance are possibly caused. The oversized perovskite nanosheet can reduce the adverse effects to a certain extent, and provides more reliable performance. The surface of the oversized perovskite nanosheet is relatively flat, and surface modification and functionalization are facilitated.

The utility model relates to a splicing and inserting type coagulation reaction grid, in particular to a flocculation grid for water treatment, which is of a net-shaped structure formed by vertically and horizontally inserting hollow pipes, and frames are arranged on the edges of the net-shaped structure. The transverse pipelines are provided with holes matched with the longitudinal pipelines, and a stable framework is formed through precise insertion. Compared with the prior art, the flocculation grid has the remarkable advantages that the stability of the flocculation grid is greatly improved through the interpenetrating structure, and the flocculation grid can resist impact of complex water flow; the porosity can be flexibly changed by adjusting the number, spacing and the like of the pipelines to adapt to different water quality treatment requirements; the hollow pipe design saves materials, is light in weight and convenient to install and transport, and the pipeline can be made of metal or plastic, so that the performance and the cost are further optimized. The flocculation grid is applied to a flocculation basin, can effectively increase turbulent fluctuation of water flow and accelerate colloid flocculation, and has a good application prospect in the field of water treatment.

The application belongs to the field of portable lighting devices, and discloses a portable lighting device with a window breaking function. The movable connecting mechanism enables the light source module to switch between a first position and a second position relative to the shell. The piercing part is fixedly installed at the end of the shell and coaxially arranged with the shell when in the first position. The central axis of the shell and the central axis of the piercing part are arranged at an angle when the piercing part is in the second position. When the piercing part is in the second position, the light source module automatically deviates from the space in front of the glass when breaking the window, thereby reducing the scratches and impacts of the splashed debris on the light source module, prolonging the service life of the lighting component, and isolating and significantly reducing the stress borne by the battery compartment and the internal battery cell due to the non-collinear angle formed between the piercing part and the shell when the piercing part is in the second position.

The invention discloses a carbon nanotube gel, a gel electrolyte and a preparation method and application thereof. The carbon nanotube gel comprises a carbon nanotube, gel, an ionic liquid and water, wherein the mass ratio of the carbon nanotubes to the gel is 1: (1-13); the mass ratio of the carbon nanotubes to the ionic liquid is 1: (1-13); the mass ratio of the carbon nanotubes to the water is 1: (9-100). The carbon nanotube gel has good conductivity, flame retardance and photo-hydrothermal evaporation capacity, has excellent photo-thermal conversion efficiency and salt crystallization resistance, not only can efficiently absorb solar energy and convert the solar energy into heat energy so as to accelerate seawater evaporation, but also can keep the performance stability for a long time, and has good application prospects. And a green and efficient solution is provided for seawater desalination.

The utility model relates to the field of building engineering, in particular to a shock insulation fireproof structure for building structural design. The utility model provides a shock insulation and fire prevention structure for building structural design, which can carry out fire prevention, cooling and heat insulation treatment on a rubber shock insulation support when the temperature is too high and maintain the structural integrity. A shock insulation fireproof structure for building structural design comprises fireproof plates, cooling plates, circulating pipelines, heat insulation plates and the like, the upper fireproof plate and the lower fireproof plate are arranged, the sides, close to each other, of the fireproof plates are connected with the cooling plates, and the cooling plates are connected with the circulating pipelines. The rubber shock insulation support is subjected to fire prevention through the fireproof plate and the fireproof corrugated pipe, the external temperature is isolated through the heat insulation layer and the heat insulation plate, and when the temperature sensor detects that the temperature is too high, water can enter the circulating pipeline for cooling; and the effects that fire prevention, cooling and heat insulation treatment can be conducted on the rubber shock insulation support when the temperature is too high, and the structural integrity is maintained are achieved.

The present invention discloses an electrostatic spray coating equipment, belonging to the technical field of coating equipment, an electrostatic spray coating equipment, including a box body, a cabinet door hinged on the front end face of the box body, a handle fixedly installed on the front end face of the cabinet door, a telescopic rod fixedly installed on the right side of the inner upper end face of the box body, a nozzle fixedly installed on the lower end of the telescopic rod, a turntable fixedly installed on the inner lower end of the box body, a shell is arranged on the upper side of the turntable, an external support fixing mechanism is arranged inside the shell, an expansion fixing mechanism is arranged on the lower side of the external support fixing mechanism, and an adsorption fixing mechanism is arranged on the upper side of the external support fixing mechanism. This scheme is particularly suitable for processing a shell made of special materials by arranging an external support fixing mechanism, and by cleverly using a support plate to support and fix the inside from the outside, the problem that the traditional external clamp fixing method easily causes the shell to deform can be effectively solved, and it can ensure that the original shape and structural integrity of the shell are maintained during installation or maintenance.

The invention discloses a high-energy-density semi-solid-state lithium battery and a preparation method thereof, and belongs to the technical field of semi-solid-state batteries. The semi-solid lithium battery comprises a positive electrode, a negative electrode and a semi-solid electrolyte, wherein the negative electrode is a silicon-based negative electrode; the semi-solid electrolyte comprises a skeleton layer and gel layers, wherein the gel layers coat the left and right surfaces of the skeleton layer; the framework layer is a mesoporous lithium lanthanum zirconium oxygen-based ceramic framework layer; the raw material of the gel layer comprises a functionalized acrylate gel precursor; the functionalized acrylate gel precursor comprises a functionalized acrylic monomer, a plasticizer and a functional aid in a mass ratio of (60-70): (20-30): (10-20). Through the gel layer, the skeleton layer and the semi-solid electrolyte of the gel layer structure, the buffer volume effect, the skeleton layer and the gel layer form a parallel ion transmission channel, the interface impedance is reduced, the conductivity is improved, and the high-safety semi-solid lithium battery with high ion conductivity and high energy density is obtained.

The utility model relates to the technical field of cables, and discloses an anti-bending flexible cable which comprises a shielding layer, a filling layer is arranged on the inner wall of the shielding layer, a flame-retardant assembly is arranged in the filling layer, a first supporting assembly is arranged on the outer side of the flame-retardant assembly, an inner core is fixedly connected in the supporting assembly, and a second supporting assembly is arranged in the inner core. A second supporting assembly is arranged on the outer side of the shielding layer, an anti-bending layer is fixedly connected to the outer side of the supporting assembly, a sheath layer is fixedly connected to the outer side of the anti-bending layer, the flame-retardant assembly comprises a plurality of filling sleeves, the outer sides of the filling sleeves are arranged on the outer side of the filling layer, and flame-retardant powder is arranged in the filling sleeves. According to the utility model, through the ammonium polyphosphate flame-retardant powder in the plurality of filling sleeves, flame is prevented from further spreading towards the inside of the cable, and the transmission of heat to an unburned part can be reduced, so that the flame-retardant effect is achieved, the safety of the cable and the surrounding environment is protected, and the fire is prevented from spreading due to the combustion of the cable.