212 results about "Thin film electrode" patented technology

The present invention discloses a device, which includes a catheter and an end effector. The size and structure of at least a portion of the catheter are configured to be assembled in the inner cavity of the cardiovascular system. The end effector is positioned at the distal end of the catheter. The end effector includes a panel, a plurality of mapping electrodes positioned on a first surface of the panel, and a plurality of ablation electrodes positioned on the first surface of the panel. The mapping electrodes are configured to sense the potential in the tissue contacting the mapping electrodes. The ablation electrodes are operable to ablate the tissue contacting the ablation electrodes.

The invention relates to a self-repairing ionic gel electrolyte, a zinc ion battery and a preparation method and application of the self-repairing ionic gel electrolyte and the zinc ion battery. The ionic gel electrolyte comprises a polymer network, ionic liquid (1-ethyl-3-methylimidazolium tetrafluoroborate) and movable zinc ions, the polymer network is obtained through a reaction of an anionic monomer 2-acrylamido-2-methyl sodium propanesulfonate and a cationic monomer acryloyloxyethyl trimethyl ammonium chloride, and the movable zinc ions are provided by a zinc tetrafluoroborate hydrate. The zinc ion battery takes the ionic gel as an electrolyte, and a positive film electrode and a negative film electrode are arranged on two sides of the ionic gel. Compared with the prior art, the material not only has excellent mechanical properties and efficient ion transmission capability, but also has the capability of quickly repairing mechanical damage, and the completely broken material can be completely repaired after being contacted for 10 seconds under infrared light irradiation. The prepared zinc ion battery has excellent self-repairing performance, flexible performance and electrochemical performance.

The invention belongs to the technical field of flexible transparent energy storage, and discloses a preparation method and application of a flexible stretchable transparent MXene / AgNWs / PDMS composite film electrode, according to the method, a PDMS substrate film, AgNWs and MXene are assembled layer by layer, and a Schottky barrier is formed between one-dimensional AgNWs and two-dimensional MXene, so that the MXene material is firmly attached to the surface of the AgNWs material, corrosion of the AgNWs can be prevented, and the service life of the flexible stretchable transparent MXene / AgNWs / PDMS composite film electrode is prolonged. According to the MXene / AgNWs / PDMS composite film electrode, the cycle stability of the composite electrode is improved, a 1D / 2D heterostructure can be formed, the electrochemical storage capacity of the MXene / AgNWs / PDMS composite film electrode is effectively improved, and a flexible transparent supercapacitor with high light transmittance, high capacitance and mechanical flexibility perfectly unified is expected to be achieved.

The invention belongs to the technical field of flexible transparent film electrodes, and particularly relates to a flexible indium tin oxide film electrode, a preparation method and a flexible solar cell. According to the flexible indium tin oxide thin film electrode provided by the invention, after the processes of pre-treating substrates such as PET, covering an acrylic resin hard coating, depositing a SiO2 transition layer and the like, the adhesive force of the indium tin oxide conductive thin film is improved through the indium tin oxide conductive thin film deposited through alternate radio frequency magnetron sputtering and direct current pulse magnetron sputtering; the bottom layer deposited by radio frequency magnetron sputtering is used for providing an interface seed layer for the fluorine-doped indium tin oxide conductive thin film layer deposited by direct current pulse magnetron sputtering and having high carrier concentration and low resistance, and the top layer is used for providing protection, so that the conductivity, environmental stability and other properties of the flexible indium tin oxide thin film electrode are improved; the conductive performance is not easy to attenuate, the long-term use stability is good, and the technical problem that in the prior art, a flexible transparent film electrode is low in performance is solved.

An air-coupled ultrasonic scanning platform for an air-coupled ultrasonic non-contact metrology of battery electrodes that maps the local variation in density and thickness, and detect defects during electrode casting and drying, includes: piezocomposite air-coupled transducers (Ultran) at 0.5 to 1 MHz that provide sufficient air coupling to enable sound waves to travel through air from a transmitting transducer, through the thin film electrode coated on metal current collector, and then into the receiving transducer. Non-contact, air-coupled ultrasound may be used as a technique for evaluating battery electrode films. An analytical model was derived from fundamental acoustic wave propagation principles to determine acoustic density. Voltage gain or acoustic density maps of electrode films revealed features that are not visually apparent, attributed to mass gradients.

The invention relates to the technical field of sensor preparation, and discloses a preparation method and application of a multifunctional flexible sensor. According to the flexible sensor provided by the invention, through the innovative design of the flexible material, a sensing solution which is high in sensitivity, quick in response and easy to integrate is realized. The preparation method comprises the following steps: preparing the flexible pressure sensing layer, and preparing a PVDF-HFP / [EMIM] [TFSI] micro-dome dielectric layer and a TPU micro-dome film electrode by adopting a polyvinyl alcohol (PVA) anti-micro-dome template; preparing a flexible humidity sensing layer, namely preparing an Au interdigital electrode and a Cu (OH) 2 humidity sensitive layer by taking polyimide (PI) as a substrate; and finally assembling the two layers to form the multifunctional flexible sensor. The sensor has the advantages of high sensitivity, quick response and good stability and repeatability, can be applied to the fields of gesture recognition and intelligent control, intelligent health monitoring, environment monitoring and the like, and has a wide application prospect.

The present application relates to the technical field of lead-acid battery electrode, aiming at the problem of thick lead paste on the existing lead-acid battery plate, large resistance during charging and poor rate discharge performance of the battery, a preparation method of lead-acid battery membrane electrode is disclosed, comprising the following steps: adding a binder to the prepared lead paste, rolling the lead paste containing the binder on the lead skin to form a lead paste film layer, immersing the lead skin and the attached lead paste film layer in a sulfuric acid solution, and solidifying and drying after taking out; the binder is polytetrafluoroethylene emulsion or a binder containing polytetrafluoroethylene emulsion. Unlike the high molecular film attached to the surface of the lead-acid battery plate in the prior art, the present application obtains a thin film electrode with thin thickness, uniform active material dispersion, large active material and current collector contact area and good conductivity, and has the advantages of large rate charge and discharge cycle.

Disclosed is an acoustic resonator including a substrate including a first cavity, a first electrode formed above the substrate, a piezoelectric layer formed on one surface of the first electrode, and a second electrode formed on one surface of the piezoelectric layer. Here, the piezoelectric layer includes a longitudinal section not to cover a longitudinal section of the first electrode. Also, the second electrode covers the longitudinal section of the piezoelectric layer and extends to a first interpolar cavity which spaces the first electrode at least partially apart from the piezoelectric layer. A quality factor may be increased by fixing an increase in resistance which occurs due to thin film electrodes.

The present invention generally relates to a process of fabricating an asymmetric supercapacitors device comprising synthesizing a BaO and CeO2 thin film as a first electrode using a one-step successive ionic layer adsorption and reaction (SILAR) method for uniform deposition and adhesion on a conductive substrate; synthesizing an activated carbon (AC) electrode as a second electrode; formulating a solid-state electrolyte layer comprising polyvinyl alcohol (PVA) and potassium hydroxide (KOH), wherein the solid-state electrolyte layer is formed as a gel; assembling the device by layering the first electrode, the solid-state electrolyte layer, and the second electrode in a stacked configuration, wherein the assembled device is allowed to stabilize for a period of 12-24 hours at room temperature to ensure uniform distribution of the electrolyte and structural integrity; and pressing the assembled layers together to enhance contact between electrodes and the electrolyte.

MAX-phase Mo2Ga2C is used as a matrix, a liquid phase corrosion method is utilized, the preparation of the two-dimensional vacancy doped molybdenum carbide (Mo2-CTz) nano material is realized through excessive corrosion, and the two-dimensional vacancy doped molybdenum carbide (Mo2-CTz) nano material is applied to the aspect of a hybrid supercapacitor. Compared with other reported MXene materials, the influence of vacancy doping measures on the Mo2CTz nanometer material is studied, the layered MAX ceramic powder is excessively corroded through hydrofluoric acid, vacancies are introduced into a metal layer, vacancy doping of MXene is achieved, and the capacitive performance of the MXene is improved. And vacancy defects are introduced, so that the interlayer spacing of MXene can be increased, activation sites on the surface of the layered structure can be increased, the conductivity of the two-dimensional material can be improved, the utilization rate of pseudocapacitance active sites of the two-dimensional material can be improved, and finally the capacitive performance of the Mo < 2->-CTz-based electrode can be enhanced. The successful development of the two-dimensional vacancy doped Mo < 2->-CTz self-supporting film electrode material lays a foundation for the practical application of electrochemical energy storage devices such as hybrid supercapacitors and ion batteries.

The invention discloses a Weyl semimetal / TMDC heterojunction photoelectric detector and application thereof, and belongs to the technical field of photoelectric devices. The photoelectric detector comprises a substrate, a TMDC material layer, a Weyl semi-metal material layer and a thin film electrode, the TMDC material layer, the Weyl semi-metal material layer and the thin film electrode are sequentially arranged on the substrate, and the TMDC material layer and the Weyl semi-metal material layer form a Van der Waals heterojunction; the device can realize switching between a photovoltaic mode and a photoconductive mode through bias voltage control; based on the characteristic, on the basis of the single photoelectric detector, XNOR logic operation can be realized under bias regulation and control and single-wavelength light beam excitation; accordingly, the invention further provides an image encryption and decryption method, according to the method, a bias voltage sequence is generated through image coding, a laser sequence is formed in combination with a secret key matrix, multiple encryption is conducted on image information through XNOR logical operation, and the concealment and safety of information transmission can be remarkably improved; and a new path is provided for development of a future security communication technology.

The invention provides a rigidity-flexibility variable multifunctional optical genetic implantable probe and a preparation method thereof. The probe comprises a thin film electrode layer and a rigidity-flexibility variable shape memory layer arranged at the bottom of the thin film electrode layer. The micro LED is integrated in the flexible nerve probe through contact type laser transfer printing to serve as a light stimulation light source, the preparation success rate is remarkably increased, heat radiated outwards during light stimulation is reduced, and damage to brain tissue of the brain caused by high-Young-modulus optical fibers is avoided; meanwhile, a rigid-flexible variable shape memory layer is also integrated, so that the Young modulus of the probe is high when the in-vitro temperature is relatively low, fixed-point implantation can be directly carried out without an auxiliary tool, the Young modulus of the probe is reduced along with the rise of the body temperature after the probe is implanted into the body, and the probe finally adapts to the mechanical tissue strength of the brain; therefore, the implantation efficiency and the mechanical adaptability of the probe to brain tissues are improved, and micron-scale accurate implantation of the probe, neuron-scale positioning of electrical stimulation and light stimulation points and long-term stable recording of electrophysiological signals are realized.

The invention belongs to the technical field of electrochemistry, and particularly relates to a method for strengthening electrolytic reaction efficiency through a programmable temperature gradient thermomagnetic effect. Specifically, a catalytic electrode comprising a plurality of Curie point materials which are arranged in a stacked manner is constructed, and when the catalytic electrode is heated to a corresponding temperature interval, each layer of material can sequentially show different magnetic properties, so that the reaction process is influenced. The Curie point characteristic of the material is utilized, continuously changing temperature fields are generated in different areas, and specific chemical reactions are selectively activated or inhibited in cooperation with magnetic field switching. The preparation method has the technical advantages that the electrolytic active membrane can be constructed on a plurality of micron-sized-thickness membrane electrode materials with different substrates, the catalytic activity of the membrane electrode material can be adjusted along with the temperature, and the membrane electrode material can be widely applied to the technical fields of electro-catalytic water decomposition, electrodialysis, electro-adsorption and the like.

The invention belongs to the technical field of composite films, and particularly relates to a super-soft, electricity-conducting and heat-conducting film electrode and a preparation method thereof. The preparation method comprises the following main preparation steps: firstly, preparing a single-layer boron nitride nanosheet BNNS from a two-dimensional heat conduction material hexagonal boron nitride BN through an ultrasonic stripping technology, and then carrying out hydroxylation treatment on the BNNS to form a hydroxylated boron nitride nanosheet HO-BNNS; the preparation method comprises the following steps: mixing a HO-BNNS aqueous solution with a silver nanowire (AgNWs) or copper nanowire (CuNWs) aqueous solution, mixing with a polyvinyl alcohol (PVA) polymer substrate material to form a uniform dispersion liquid, pouring the mixed solution on the surface of a prefabricated metal nanowire thin film electrode (a substrate can be a flat substrate such as a PET flexible polymer or a silicon wafer rigid substrate), and performing high-temperature curing to obtain the metal nanowire thin film electrode. And finally, the cured film is peeled off from the substrate, so that the super-soft film electrode with excellent electric conduction and heat conduction performance is prepared, and the film can be repeatedly folded and has super-flexibility.

The application discloses a kind of gold nanoparticle loaded oxygen-doped ultrathin porous boron nitride film electrode and preparation method thereof, the preparation method includes the following steps: according to mass ratio 1:3-6:0.25-0.35, boric acid, urea, oxalic acid is prepared oxygen-doped ultrathin porous boron nitride, then gold nanoparticle is loaded oxygen-doped ultrathin porous boron nitride and coated on conductive substrate to form film electrode.The oxygen-doped ultrathin porous boron nitride film electrode loaded with gold nanoparticles prepared by the application has the advantages of large specific surface area, high electron-hole separation efficiency, fast electron transfer rate, etc., is a new type of film electrode with excellent photoelectric performance, meets the actual production demand, and has wide application prospect in photoelectrochemical field.The preparation method also has the advantages of simple process, easy operation, high preparation efficiency and low cost, and is suitable for large-scale preparation, which is beneficial to industrial application.

Provided are a capacitor, an electronic device including the same, and a method of manufacturing the same, the capacitor including a first thin-film electrode layer; a second thin-film electrode layer; a dielectric layer between the first thin-film electrode layer and the second thin-film electrode layer; and an interlayer between the dielectric and at least one of the first thin-film electrode layer or the second thin-film electrode layer, the interlayer including a same crystal structure type as and a different composition from at least one of the first thin film electrode layer, the second thin film electrode layer, or the dielectric layer, the interlayer including at least one of a anionized layer or a neutral layer.

A method for manufacturing an electrophoretic display layer including various thin films deposited directly on a microcapsule layer of an electrophoretic medium. In one embodiment, a thin film of light-transmissive conductive material is deposited to produce a transparent front electrode for an electrophoretic display. In some embodiments, both a dielectric layer and a thin film of light-transmissive conductive material are deposited on the microcapsules.

The present invention relates to the technical field of electronic components, and particularly relates to a manufacturing method of a transparent flexible thin-film electrode, comprising the following steps: (1) pre-treating the surface of a substrate; (2) coating a polyimide slurry on the surface of the pre-treated substrate and curing it to obtain a polyimide layer; (3) opening conductive grooves on the polyimide layer according to the design of an electrode pattern; (4) spraying a heat-conducting ink in the conductive grooves and curing it to obtain a heat-conducting protective layer; (5) filling a nano-silver conductive ink into the conductive grooves sprayed with the heat-conducting ink, and drying and curing; (6) removing the redundant nano-silver conductive ink outside the conductive grooves to obtain an electrode pattern; (7) coating an ultraviolet curing solution on the surface of the polyimide coating after obtaining the electrode pattern and curing it to obtain a transparent encapsulation layer. The electrode prepared by the present invention has a response speed of 2-5 s, a number of bending resistance times of more than 300,000 times, a temperature of 35-50 °C after heating for 72 h, good high-temperature performance, and greatly improved service life.

The application discloses a preparation method of a metal nanometer film electrode with a high limit working temperature, and relates to the field of nanometer film electrodes. In a vacuum film plating chamber, a metal target is used to prepare a metal nanometer film with a nanometer thickness on a silicon wafer substrate by using a multi-target electron beam evaporation film plating instrument, then the aluminum target is switched to, and an aluminum nanometer film with a predetermined nanometer thickness is prepared on the surface of the metal nanometer film by using the aluminum target and the multi-target electron beam evaporation film plating instrument, so as to obtain the metal nanometer film electrode. The aluminum nanometer film is stably adsorbed on the surface of the metal nanometer film at high temperature, and the thickness is controllable, the surface is flat, and the bonding strength with the surface of the metal nanometer film is high. The aluminum nanometer film is oxidized to form an aluminum oxide film in air, which can effectively avoid high-temperature oxidation of the metal nanometer film, so as to improve the oxidation resistance of the metal nanometer film electrode, and make the metal nanometer film electrode have a higher limit working temperature.

The application discloses a self-powered temperature sensor based on thermoelectric effect and a preparation method and application thereof, and aims to provide a temperature sensor based on high-performance bismuth telluride-based thin film thermoelectric material, which has high sensitivity and strong flexibility, and a preparation method and application thereof in monitoring soil temperature of a greenhouse. The temperature sensor comprises a thermoelectric module, the thermoelectric module comprises a base plate, the base plate is provided with N-type bismuth telluride thin films and P-type antimony telluride thin films which are distributed in a scattering mode, the N-type bismuth telluride thin films and the P-type antimony telluride thin films are arranged at intervals, the N-type bismuth telluride thin films and the P-type antimony telluride thin films are integrated into multiple pairs of P-N junction thermoelectric legs by being connected in series through thin film electrodes, a center hollow hole is arranged on an inner ring formed by the thin film electrodes on the base plate, the hollow position at the center hollow hole and the thin film electrodes of the inner ring are encapsulated by high-thermal-conductivity material, and a thermal-conductivity encapsulation layer is formed in a middle region. The sensor has high sensitivity, strong flexibility and the ability of accurate monitoring.

The present invention proposes a preparation method, product and application of a flower-shaped carbon-based Mn-doped NiCoP thin film electrode material, which belongs to the field of electrochemical technology. The flower-shaped carbon-based Mn-doped NiCoP thin film electrode material of the present invention is deposited on a growth substrate by a hydrothermal deposition method to prepare a three-dimensional walnut shell-derived porous carbon-based Mn-doped NiCo precursor, and then the three-dimensional walnut shell-derived porous carbon-based Mn-doped NiCo precursor is prepared by phosphating using a gas-solid reaction method. WSC‑N / O and Mn elements are introduced during the preparation process to enhance the electrochemical activity and electronic conductivity, thereby realizing the rapid transmission of electrons and improving the electrochemical properties of the electrode material, and it is further used in the preparation of high-performance supercapacitors and aqueous zinc ion batteries, showing excellent energy density. The introduction of the electrode material of the present invention provides a new method for designing and manufacturing high-performance energy storage devices.

The present invention belongs to the technical field of self-supporting thin film electrodes, and particularly relates to a self-supporting composite thin film, a preparation method thereof, and an application thereof. In the present invention, molybdenum disulfide, multilayer Ti3C2T x MXene, and graphene oxide are compounded to prepare a self-supporting composite thin film, which solves the problem that two-dimensional materials are prone to stacking. The constructed heterojunction structure has an extremely high adsorption specific capacity, which can reach 51.1 mg / g, and has a great adsorption rate. The self-supporting composite thin film provided by the present invention has good flexibility, toughness, and electrical conductivity, and is an ideal electrode material, especially suitable for the field of capacitive deionization technology, and has great application prospects in devices such as supercapacitors, lithium ion batteries, and sodium ion batteries.

The present invention discloses a method for constructing a secondary ion battery energy storage model device suitable for surface characterization, comprising the following steps: covering one end of a conductive substrate with a shielding layer, vacuuming a magnetron sputtering chamber at a magnetron sputtering temperature of 395°C and a vacuum degree of 1‑5 Pa, preparing a V2O5 thin film electrode at a sputtering power of 30‑300W, removing the shielding layer, and using an electrode clamp to clamp the conductive substrate of the thin film electrode not covered by the V2O5 layer, ensuring that the working electrode can be electrically connected to an external electrochemical workstation, thereby completing the assembly of the secondary ion battery energy storage model battery device. The thin film electrode prepared by the magnetron sputtering method of the present invention has a single component and a regular structure. The test results are information on the true state of the reactive material, without interference from impurities adsorbed between particles, and the results are more accurate.

Provided are a capacitor and a method for manufacturing the capacitor, the capacitor including: a first thin-film electrode layer; a second thin-film electrode layer; a dielectric layer, including a binary metal oxide, between the first thin-film electrode layer and the second thin-film electrode layer; and an interlayer, including an anionized layer, between the dielectric layer and at least one of the first thin-film electrode layer or the second thin-film electrode layer. The interlayer has a same type of crystal structure as and a different composition from the dielectric layer, and the anionized layer includes at least one of a monovalent cation, a divalent cation, or a trivalent cation.

This invention belongs to the field of composite electrode materials technology, and relates to a method for preparing a NiCoCu selenide composite MXene / carbon sphere thin film electrode material, comprising: first, dissolving ZIF-67 powder in a carbon sphere solution, then adding an MXene aqueous solution, stirring for 1-10 hours, filtering and drying to obtain ZIF-67@MXene / CS; second, preparing a solution according to the proportion of urea, copper source, nickel source and ethanol, immersing ZIF-67@MXene / CS, and reacting hydrothermally to obtain a NiCoCu-LDH@MXene / CS thin film; third, mixing the NiCoCu-LDH@MXene / CS thin film, selenium powder and sodium borohydride in a mass ratio of 0.5-1:1-2:1-2, reacting at 150-180°C for 12-24 hours, washing the obtained product with deionized water and drying to obtain the final product. MXene and carbon spheres together provide a flexible substrate for the self-supporting material, increasing its conductivity and specific surface area. Simultaneously, NiCoCu-Se intercalation into the MXene acts as an intermediate buffer, preventing MXene self-stabilization and making its structure more stable. When applied as the positive electrode material for supercapacitors, the self-supporting material avoids the use of binders, reducing the material's impedance and improving electrochemical performance.

Method for producing a powder comprising particles (26) comprising amorphous, micro- or nano-crystalline Silicon nitride. The method comprises the steps of supplying a reactant gas (12) containing Silicon, and a reactant gas (12) containing Nitrogen, to a reaction chamber (16) of a reactor (10), and heating said reactant gases (12) to a temperature in the range of 510° C. to 1300° C. which is sufficient for thermal decomposition or reduction of the reactant gases (12) to take place inside the reaction chamber (16) to thereby produce a powder of amorphous, micro- or nano-crystalline particles (26) comprising Silicon nitride (SiNx) in which the atomic ratio of Silicon to Nitrogen is in the range 1:0.2 to 1:0.9. The produced powder of particles (26) may be used to produce a film, an electrode, such as an anode, for a battery, such as a Lithium ion battery.

The invention discloses a flexible multi-channel sensing patch integrated with electroencephalogram and myoelectricity acquisition and a system comprising the flexible multi-channel sensing patch. The flexible multi-channel sensing patch comprises a flexible substrate, a circuit and conductive gel, wherein the flexible substrate is made of a flexible polymer and / or a fiber material; the circuit comprises a main circuit, a stretchable wire and at least eight film electrodes, the main circuit comprises a bio-electricity signal monitoring chip, and at least part of the stretchable wire is arranged in a winding shape and conducts the film electrodes and the main circuit; the circuit is arranged on the flexible substrate, and the conductive gel is adhered to one surface, far away from the flexible substrate, of the film electrode. Through cooperation of the flexible substrate, the stretchable wire, the film electrode and the conductive gel, the flexible multi-channel sensing patch and a skin interface have a better fitting degree, the resistance is reduced, and the wearing comfort and the signal acquisition accuracy are improved.

The application discloses a high-silicon-loaded carbon nanotube composite film electrode and a preparation method and application thereof. The preparation method comprises the following steps: providing a nanosilicon dispersion liquid containing nanosilicon, polyvinylpyrrolidone and a solvent; making a continuous carbon nanotube network fully contact with the nanosilicon dispersion liquid, so that the continuous carbon nanotube network and the nanosilicon are continuously and in situ dynamically and uniformly compounded, and are synchronously shrunk and fiberized; through continuous collection of layer-by-layer assembly and drying, a carbon nanotube / nanosilicon composite film is prepared; and then high-temperature carbonization and roller pressing treatment are carried out, so that the high-silicon-loaded carbon nanotube composite film electrode is prepared. The in-situ continuous compounding technology is adopted to prepare the high-silicon-loaded carbon nanotube composite film electrode; the long-range continuous and dense carbon nanotube conductive framework in the electrode can realize high-silicon loading and simultaneously enhance the structural stability of the electrode; and the prepared composite film electrode has excellent tensile and bending resistance, conductivity and lithium storage performance (specific capacity and cycle stability).

A robotic device comprises an actuator hinge and a movable element connected thereto. The actuator hinge includes a bottom electrode, a top electrode, and a solid-state ionic material layer between the bottom and the top electrodes. A switch comprises a first element including a movable element. The movable element has a top thin-film electrode, a bottom thin-film electrode, and a solid-state ionic material layer between the top and the bottom thin-film electrode. In response to an applied first voltage, the first element changes shape from a first shape to a second shape. In response to an applied second voltage different from the first voltage, the first element changes from the second shape to the first shape. The switch is in a first state when the first element is configured in the first shape. The switch is in a second state when the first element is configured in the second shape.

The invention discloses a gradient segmented flag wind sensor with a self-powered warning function. The gradient segmented flag wind sensor comprises a first sensing structure and a second sensing structure which are oppositely arranged, the first sensing structure comprises a substrate film I (1) and an electrode film I (2) which are stacked and pasted; wherein the substrate film I (1) has different thicknesses in the horizontal direction; the second sensing structure comprises a friction layer film (3), an electrode film II (4) and a substrate film II (5) which are sequentially stacked and adhered; wherein the friction layer film is opposite to the electrode film I (2) of the first sensing structure; and the substrate film II (5) has different thicknesses in the horizontal direction. According to the invention, high-precision wind speed sensing can be realized under conventional conditions, and a self-powered illumination early warning mechanism can be automatically triggered for wind power of level 5 and above under abnormal conditions such as sudden power failure.