58results about How to "Good mechanical flexibility" patented technology

An antenna implantable through minimally invasive techniques, preferably comprising a coil with conductive probes is provided. The antenna is preferably superelastic nickel-titanium having an insulative coating. The antenna may conduct a signal originating from a device external to the body of the implantee, or from another implanted device connected to the antenna depending on whether the antenna is employed for sending, receiving, or transceiving signals. Signals may contain data, operational commands, and may be used to transfer power. The implantable antenna may be connected to another implanted device, such as a blood pressure monitor, or may be implanted as a stand-alone device for purposes such as stimulating tissue.

The invention belongs to the technical field of flexible energy storage devices, and particularly relates to a metal organic frame/conductive polymer composite material, a preparation method thereof and application in knittable, flexible and fibroid supercapacitors. Carbon fiber bundles are adopted as an electrode substrate, the electro-deposition metal organic frame/conductive polymer composite material is adopted as an electrode active material, polyvinyl alcohol-electrolyte gel is adopted as solid electrolyte and a membrane, and the prepared fibroid supercapacitor has the excellent capacitive performance, good mechanical flexibility, wide working temperature range and stable long-term service life, capable of being directly knitted and integrated into textile easily, and capable of providing an efficient energy storage system for wearable mobile equipment.

The invention provides an ultra-thin silver base thin film, a multi-layer composite transparent electric conduction thin film and a preparing method and application thereof. The ultra-thin sliver base thin film is of a double-layer structure and comprises an Ag (O) layer and a continuous ultra-thin Ag layer which is located on and makes contact with the Ag (O) layer; the thickness of the Ag (O) layer is 0.5 nm-5 nm, and the thickness of the Ag layer is 2 nm-10 nm; and the oxygen doping concentration x is greater than or equal to 1% and less than or equal to 24% in the Ag (O) layer. The multi-layer composite transparent electric conduction thin film comprises a base and at least one Ag (O) / Ag double-layer which is located on the base. According to the ultra-thin silver base thin film and the multi-layer composite transparent electric conduction thin film based on the ultra-thin silver base thin film, excessive dependence of the thin film overall electric conduction on the oxygen doping concentration of the Ag (O) layer is weakened to a certain extent, the technical problems of difficult precise controlling over the oxygen doping concentration of the Ag (O) layer and the like are solved, the transparent electric conduction thin film with better mechanical flexibility and composite photoelectricity performance is obtained, preparing in a room temperature condition is achieved, cost is low, and the application prospects are broad.

A thin-film transistor (100) of the present invention comprises a semiconductor layer (4), and a source region (5), a drain region (6), and a gate region (2) which formed on the semiconductor layer to be separated from each other. Said semiconductor layer is made of composite material, and said composite material comprises organic semiconductive material and at least one kind of inorganic material particles dispersed inside the organic semiconductive material.

The invention relates to a preparation method of an energy storage system device material, in particular to an oxide type ceramic composite nanofiber solid electrolyte and an electrostatic spinning preparation method thereof, and belongs to the technical field of energy storage system device material preparation. The preparation method comprises the following steps: firstly, preparing oxide type ceramic nanoparticles; then, dispersing the oxide type ceramic nanoparticles into a polyvinylidene fluoride solution to prepare a spinning precursor solution, and performing electrostatic spinning to obtain oxide type ceramic nanofibers; and finally, pouring the polymer electrolyte of a polymer conductive lithium salt system to obtain the oxide type ceramic composite nanofiber solid electrolyte. The material can be applied to a flexible solid-state lithium battery and has good electrochemical performance and mechanical flexibility.

The invention provides a two-dimensional nanosheet-polymer flexible composite film and a preparation method thereof. The two-dimensional nanosheet-polymer flexible composite film is prepared from a two-dimensional nanosheet and a polymer matrix, the two-dimensional nanosheet is prepared from any one or more materials in a (Ca, Sr)2(Nb, Ta)3O10 system with a perovskite structure, and the polymer isprepared from any one or more materials of polyvinylidene fluoride, polyvinylidene fluoride-trifluoroethylene, polyvinylidene fluoride-hexafluoropropylene, epoxy resin, polypropylene and polyimide; and the preparation method comprises the preparation process that a KCa2Nb3O10 material is synthesized in a high-temperature sintering mode; an HCa2Nb3O10.1.5H2O material is synthesized through a proton-exchange reaction; the HCa2Nb3O10.1.5H2O material is stripped into the two-dimensional nanosheet; and then a flexible composite film product is prepared through a tape casting method. By adding thetwo-dimensional nanosheet into the polymer matrix, a polymer matrix composite with excellent performance is obtained at the low inorganic matter additive amount, thus the good flexibility of the polymer matrix of the polymer matrix composite is retained, and the breakdown field strength of the composite film is improved.

The invention provides a flexible nano-porous/amorphous composite material for hydrogen production by electrolyzing water and a preparation method thereof. A Ni-Zr-Ti (Pt, Au, Pd) amorphous alloy wire or a thin strip is used as a precursor, and Zr and Ti elements are selectively removed through surface dealloying, so that the composite material is prepared. The nano composite material has a double-continuous nano porous structure with a high specific surface area and an amorphous matrix layer, and meanwhile has good mechanical flexibility and can be bent at any angle of 180 degrees. The composite material is directly used for electrolyzing a hydrogen evolution electrode, and shows excellent hydrogen evolution electrocatalytic activity, and the performance is obviously superior to 10 wt%of commercial Pt/C catalysts. The flexible nano-porous/amorphous composite material not only can solve the problem that an existing block nano porous electrocatalytic material is generally brittle, but also can overcome the defect that because the specific surface area of a traditional amorphous block body and a strip is not high, the catalytic activity is insufficient, and has a great applicationprospect in the aspect of high-performance electrolytic water hydrogen production electrode devices.

The invention relates to an optical frequency converter of a silicon nitride micro-ring integrated gallium selenide film, which comprises a double-straight- waveguide type silicon nitride micro-ring cavity and a gallium selenide film, and is characterized in that the gallium selenide film covers the upper surface of the double-straight-waveguide type silicon nitride micro-ring cavity. Pump light enters the silicon nitride micro-ring cavity from an upper straight waveguide through side edge coupling. The silicon nitride micro-ring cavity has an amplification effect on a pump light field, so that a very strong evanescent light field is formed on the surface of the micro-ring. The evanescent light field interacts with the gallium selenide film with an ultrahigh second-order nonlinear coefficient to efficiently generate frequency doubling light or sum frequency light. The generated frequency doubling light or sum frequency light is coupled to a lower straight waveguide through the silicon nitride micro-ring cavity and output. The optical frequency converter which is simple in preparation process, low in cost, compact in structure and high in conversion efficiency is formed, and is expected to be applied to the fields of optical communication, photonic integrated chips and the like.

The invention belongs to the technical field of battery materials, and particularly relates to a preparation method of a micron silicon-carbon composite negative electrode material with long cycle life, the composite negative electrode material prepared by the method has a tough multistage buffer structure, micron silicon particles crushed in a cycle process can be stabilized internally, and a fresh surface exposed by cracking is protected; and the graphene compact network with high strength and high modulus on the outer layer can maintain the structural integrity of the internal silicon-carbon active particles in the compaction process to the greatest extent. Meanwhile, internal silicon-carbon active particles (SiMP(at)C) are tightly connected into a mechanical and electrical whole through a graphene network with a compactly contracted outer layer, so that the electrode structure is reinforced and toughened, and effective mechanical buffering and continuous and rapid electron transferare realized in the lithium de-intercalation and intercalation process.

The invention discloses a method for electrolytic deposition of a WO3 thin film on a non-continuous conducting film, and relates to the technology of functional materials. A magnetron sputtering technology is utilized for sputtering WO3 on the surface of a PET thin film to obtain a WO3/PET film; a PVA nano fiber net is obtained through electrostatic spinning, metallic silver coating is formed on the surface of the PVA nano fiber net, a PVA template is removed to obtain a nano groove conducting grid, and then the conducting grid is transferred to the obtained WO3/PET film to obtain a compound thin film; a WO3 top-level layer is subjected to magnetron sputtering on the compound thin film to form a transparent conducting substrate of a sandwich structure; an electrochemical deposition methodis adopted for preparing a WO3 color changing layer on the transparent conducting substrate of the sandwich structure, and the electrolytic deposition of the WO3 thin film on the non-continuous conducting film is completed. According to the method, the cost is reduced, and the high-transmittance non-continuous conducting film is applied to the electrochemical deposition method.

The invention provides a flexible capacitive pressure sensor and a preparation method thereof, and belongs to the field of flexible sensors. The sensor comprises a first electrode plate, a second electrode plate, a flexible dielectric layer and electrostatic films, the first electrode plate and the second electrode plate are oppositely arranged, the electrostatic films are attached to the surfaceof a conductive film of the first electrode plate and the surface of a conductive film of the second electrode plate, and the flexible dielectric layer is arranged between the first electrode plate and the second electrode plate; and the flexible dielectric layer is a composite material obtained by combining modified titanium dioxide and polyurethane sponge. According to the invention, polyurethane combined with modified titanium dioxide is used as the flexible dielectric layer and is bonded with the flexible electrode in a pressurized manner, so that the preparation of the flexible capacitivepressure sensor with high sensitivity is realized, the sensor has extremely low detection limit, and the multifunctional measurement of the sensor is realized.

The invention relates to a preparation method of a flexible OLED light-emitting device based on the anode structure of a novel laminated film. The OLED light-emitting device comprises a light-emitting layer and a cathode positioned on one side of the light-emitting layer. The method comprises the following steps: S1, growing graphene on a copper foil by adopting a chemical vapor deposition method; S2, transferring the graphene onto a flexible PET substrate; S3, putting the prepared graphene/PET into an HNO3 solution for soaking, and then drying; S4, spraying a PEDOT:PSS solution on the treated graphene, then putting on a heating plate for drying; and S5, putting a prepared graphene/PEDOT:PSS composite film into a vacuum cavity, adopting a vacuum evaporation technology to heat and plate the graphene/PEDOT:PSS composite film on the side, at the back of the cathode, of the light-emitting layer as an anode, and thus preparing the OLED light-emitting device. The graphene serves as the anode of a photoelectric device, so that the anode has the characteristics of high carrier mobility, good mechanical flexibility, high transmittance and the like; and the PEDOT:PSS enables the anode to be of the characteristics of high conductivity, high work function and high transmittance.

The invention relates to an azobenzene derivative, a solar thermal energy fuel film composite material and a preparation method and application thereof, discloses a series of azobenzene derivatives, and provides a method for preparing a photo-induced phase change ready-to-use solar thermal energy fuel film through the azobenzene derivatives. The prepared solar thermal energy fuel composite film has good mechanical flexibility, photoisomerization effect and energy storage capacity. The composite film can rapidly generate cis-trans isomerization to store energy under the irradiation of an ultraviolet lamp, the stored energy is gradually increased along with the prolonging of irradiation time, the full state can be achieved within about 2 hours, the energy density can reach 200 J/g or above,and the temperature of the composite film can be continuously increased by about 5 DEG C. The charging/discharging process has very good reversibility, and no obvious attenuation exists after the energy is circularly charged/discharged for more than 5 times. The composite material has the advantages of simple preparation process, environmental friendliness, easily available materials, large heat release amount, good mechanical flexibility, strong acid and alkali corrosion resistance, good recycling performance and the like.

The invention belongs to the technical field of chemical industry, in particular to printable flexible conductive paste. The printable flexible conductive paste comprises the following components by weight: 11.1%-12.8% of fluororubber, 23%-33% of flake silver powder, 44.4%-51.2% of butyl acetate, and 11.1%-12.8% of fluorocarbon surfactant. The fluororubber is taken as an organic carrier, the flakesilver powder, is taken as a conductive filler, the butyl acetate is used for dissolving the fluororubber, and then the printable flexible conductive paste is obtained by simply and evenly mixing thedissolved fluororubber and the fluorocarbon surfactant and the flake silver powder. The fluorocarbon surfactant is adopted to enhance affinity of the flake silver powder to the fluororubber, therebyensuring stability of a material. The printable flexible conductive paste provided by the invention can be prepared in batch, enables the application range of a substrate to be wide, exhibits good mechanical flexibility, and has simple compositions. A preparation process is simple and feasible, the cost is low, and the paste can be cured at a room temperature.

The present invention pertains to a membrane for an electrochemical device, to a process for manufacturing said membrane and to use of said membrane in a process for manufacturing an electrochemical device.

The invention relates to the technical field of intersection between textile materials and electrochemical energy storage processes, in particular to a stretchable array structure microelectrode, a micro supercapacitor and a preparation method thereof. The electrode comprises a stretchable textile fabric substrate, conductive ink, porous carbon fiber and metal oxide, wherein the conductive ink isprinted on the textile fabric substrate; the porous carbon fiber is fixed on the textile fabric substrate through the conductive ink; and the metal oxides are electro-deposited on the porous carbon fiber. The preparation method of the electrode comprises the steps of: printing the conductive ink on the textile fabric substrate; statically implanting the porous carbon fiber; and electro-depositingthe metal oxide. Through the preparation methods, the ink and the static carbon fiber implanting process are combined to prepare the stretchable array structure microelectrode, and the microelectrodeis assembled into the micro supercapacitor through water gel electrolyte; and the two preparation methods are simple in process, relatively low in cost and easy to realize large-scale production.