34 results about "PEDOT:PSS" patented technology

This invention discloses a flexible lactic acid sensing patch based on biochar / PEDOT:PSS composite, its preparation method, and its applications. The flexible lactic acid sensing patch comprises, from the inside out, an adhesion and fixation layer, a liquid-permeable protective layer, a conductive hydrogel layer, a lactic acid sensing layer, and a flexible electrode substrate layer. The lactic acid sensing layer is formed by combining biochar material and PEDOT:PSS. The flexible electrode substrate layer integrates a working electrode, a counter electrode, and a reference electrode, wherein the working electrode is directly bonded to the lactic acid sensing layer. The flexible lactic acid sensing patch provided by this invention has the characteristics of flexible structure and good adhesion, and does not require the use of enzyme recognition elements. It also has advantages such as high stability, simple preparation process, and continuous monitoring capability, and can be applied to human tissue metabolic status monitoring, postoperative blood circulation assessment, and exercise physiological monitoring.

This invention discloses an iodine cathode interface conductive polymer slurry, an iodine cathode and its preparation method, and its application in I... ‑ / I2 / I + In the application of positive-valence zinc-iodine batteries, the conductive polymer slurry at the iodine cathode interface is formed by combining an aqueous adhesive and a PEDOT:PSS dispersion. This conductive polymer slurry is uniformly coated onto the surface of the iodine cathode, and after drying, a dense conductive polymer film is formed on the iodine cathode surface. The PEDOT:PSS film of this invention can inhibit polyiodine ion shuttle and I₂ from both physical barrier and chemical adsorption perspectives. + Hydrolysis; when the iodine cathode loading is 10 mg cm⁻¹ ‑2 At that time, the discharge plateau of the zinc-iodine battery was 1.6 V (I 0 / I + ) and 1.2 V(I ‑ / I 0 Its capacity retention rate after 3500 stable cycles is over 91%, effectively improving the performance of the iodine cathode and enhancing the overall performance of the battery; it belongs to the field of battery technology.

This invention relates to a PEDOT solution, an electrochemical sensing electrode, and a preparation method thereof, comprising 75-200 parts of a PEDOT:PSS aqueous dispersion, 3-10 parts of an organic solvent, and 0.3-2 parts of a crosslinking agent, wherein the crosslinking agent is a silane coupling agent. Through the synergistic ratio of these components, a composite functional layer is formed on the electrode surface, solving the problems of insufficient interfacial wetting and electro-drift caused by the hydrophobicity of traditional electrode substrates, ensuring stable solid-liquid interfacial contact between the electrode and detection media such as aqueous solutions and sweat. Simultaneously, the three-dimensional network structure constructed by the crosslinking reaction allows the composite functional layer to form a strong chemical bond with the electrode substrate, effectively avoiding problems such as modification layer detachment and swelling. This application replaces traditional electroplating processes, is suitable for integrated products such as wearable sweat patches, avoids problems such as electrolyte corrosion of the substrate and short circuits, and is suitable for the modification needs of embedded, irregularly shaped, and array electrodes.

This invention discloses a pressure-induced heating composite material, comprising: a flexible support layer, which is a PI film; a first triboelectric material layer, which is a CNT-OH / PVDF-HFP composite film, attached to one side of the flexible support layer; a second triboelectric material layer, which is an AgNW / PDMS composite film, attached to the other side of the flexible support layer; a pyramidal microstructure is constructed on the surface of the second triboelectric material layer; and a thermoelectric conversion layer, attached to either the first or second triboelectric material layer. The thermoelectric conversion layer is prepared by combining Bi2Te3 / Sb2Te3 heterojunction nanosheets, PEDOT:PSS hydrogel, and Ti3C2TxMXene, with each component being doped with each other to form a uniform dot-like spatial distribution structure. The material of this invention exhibits high response under low pressure because the pyramidal microstructure increases the contact area change rate by 400% under low pressure (≤5kPa) and achieves a charge density of 1.2–1.5 mC / m², breaking through the high-pressure triggering bottleneck of existing materials.

The application relates to a preparation method of a ternary alloy nanoflower and an organic hybrid composite film thereof, and belongs to the technical field of nanometer materials and functional films. BiCl3, SbCl3 and TeO2 are dissolved in ethylene glycol, NaOH and PVP K30 are added, stirring is carried out at room temperature until a clear solution is obtained, the solution is transferred to a reaction kettle, and reaction is carried out in a blast drying oven; after cooling, centrifugal washing is carried out; after drying, a Bi-Sb-Te alloy nanoflower is obtained; the Bi-Sb-Te alloy nanoflower is mixed with a PEDOT:PSS aqueous solution; a conductive enhancer is added, ultrasonic dispersion is carried out to form a uniform slurry; the slurry is deposited on the surface of a glass substrate by using a drying machine through a flow casting method; after annealing, the film is peeled off, vacuum drying is carried out, and a flexible thermoelectric composite film is formed. Through the establishment of a trinity technology of "nanoflower morphology design-in-situ interface optimization-low temperature solution process", the problems of poor flexibility of traditional thermoelectric materials, nanocomposite interface failure and unsustainable high-temperature process are solved.

A preparation method of an active layer of a flexible organic solar cell based on polymer toughening, comprising: dissolving PM6 in toluene to configure a donor solution; dissolving BTP-eC9 in toluene to configure a solution, adding 0-20wt% of PM6 and 1,3-dibromo-5-chlorobenzene to form an acceptor solution; coating the donor solution and the acceptor solution on the surface of the PEDOT:PSS hole transport layer of the flexible organic solar cell in turn twice, and annealing after each coating to obtain the active layer of the flexible organic solar cell based on polymer toughening. The application utilizes the dilution of the acceptor solution by the polymer donor PM6 to inhibit excessive crystallization of the acceptor, utilizes the compatibility difference between the donor and the acceptor to optimize the solution penetration process of the last solution to the bottom layer of the donor film in the deposition process, spontaneously induces the gradient distribution of the active layer of the donor and the acceptor, and cooperatively improves the energy conversion efficiency and the mechanical stability of the flexible organic solar cell.

The application discloses a preparation method of an electric field-induced hydrogel electrode and application thereof. The method mainly uses polyvinyl alcohol as a base material, combines conductive media (PEDOT:PSS, NaCl or CaCl), a chemical crosslinking agent (glutaraldehyde) and a reversible coordination crosslinking agent (sodium tetraborate decahydrate), and introduces tannic acid to improve adhesion. The core of the method is that the electric field-induced hydrogel is added dropwise to the surface of an electrode to be grown, a redox reaction is induced in a cathode area by applying an electric field, the pH value of a solution is rapidly increased, the coordination crosslinking of sodium tetraborate is activated, and the hydrogel is rapidly and in-situ solidified on the surface of the electrode. The hydrogel electrode prepared by the method has high tensile property, high conductivity and self-repairing characteristics, has low contact impedance and high signal-to-noise ratio, and can be used as a high-performance flexible electrode and applied to detection of electrocardiosignal and other electrophysiological signals, and has obvious advantages compared with commercial electrodes.

A method for manufacturing a work function-tunable ionic liquid-functionalized poly-3,4-ethylenedioxythiophene:poly-styrenesulfonate (PEDOT:PSS) film. The method comprises: a pretreatment step, a film formation step, a film treatment step, and an ionic liquid treatment step. In the pretreatment step, a pretreatment solution is prepared by mixing PEDOT:PSS solution with methanol. In the film formation step, the pretreatment solution is blade-coated onto a substrate and subsequently annealing to form a first-stage film. In the film treatment step, dimethyl sulfoxide(DMSO) is blade-coated onto the first-stage film, followed by annealing. The DMSO-treated first-stage film washed with methanol to remove residual DMSO, forming a second-stage film. In the ionic liquid treatment step, an ionic liquid is ultrasonically agitated in deionized water to prepare an ionic liquid solution. This solution is blade-coated onto the second-stage film. The film is annealed washed with deionized water to remove the ionic liquid, thereby obtaining the ionic liquid-functionalized PEDOT:PSS film.

This invention discloses a PEDOT:PSS / LiNO3 composite modified copper current collector, its preparation method, and its application. A PEDOT:PSS aqueous solution is coated onto the surface of a copper foil, vacuum dried to form a film, and then immersed in a LiNO3 aqueous solution to allow LiNO3 to penetrate and uniformly disperse within the film. After drying, Cu@PPN is obtained. This two-step method avoids the interference of LiNO3 on the PEDOT:PSS film formation in direct mixing methods, resulting in a uniform and dense coating. In the Cu@PPN current collector, PEDOT:PSS homogenizes the electric field distribution on the copper foil surface, guiding the uniform nucleation of lithium ions; LiNO3 is converted in situ to Li3N, and PSS chain sulfonate ions generate Li2S-like components in situ, synergistically constructing a Li3N-rich / Li2S composite inorganic SEI layer. This invention features a simple process, is suitable for large-scale production, and has significant application prospects in high-performance lithium metal batteries.

The application relates to the technical field of scintillator screen and discloses a flexible scintillator screen with low-dose X-ray imaging performance and a process thereof, which comprises a high-efficiency 2D perovskite scintillator material layer, a transparent conductive polymer layer and a flexible substrate, the high-efficiency 2D perovskite scintillator material is Cs2AgBiBr6, the flexible substrate is a polyimide film or a PET film, the transparent conductive polymer layer is arranged on one side or both sides of the high-efficiency 2D perovskite scintillator material layer, and the transparent conductive polymer layer material is PEDOT:PSS or PANI. The low-dose X-ray imaging performance is improved through the micro-nano structure and the gradient structure; the micro-nano structure can control the propagation and emission direction of the scintillator light emission, improve the light extraction efficiency or the detection sensitivity; the gradient structure matches the intensity difference of the X-ray penetrating object, avoids signal saturation or loss, and optimizes the light collection efficiency and the imaging quality.

The application discloses a PEDOT:PSS pre-fracture conductive network electrode and a preparation method and a capacitive pressure sensor thereof, and belongs to the technical field of flexible sensors.The preparation method of the PEDOT:PSS pre-fracture conductive network electrode comprises the following steps: uniformly mixing a PEDOT:PSS polymer aqueous solution and an elastomer matrix, adding a conductive reinforcing agent, and forming a PEDOT:PSS double-network film embedded in the elastomer matrix through heat annealing treatment; a strain is applied to the PEDOT:PSS double-network film, so that a conductive network of the PEDOT:PSS double-network film is fractured; and after the strain is released, the PEDOT:PSS double-network film is reorganized into the PEDOT:PSS pre-fracture conductive network electrode under the constraint and rebounding action of the elastomer matrix network.

The application discloses a kind of foam-based flexible tactile sensor and its preparation method, the flexible tactile sensor has three-layer structure, middle layer is PEDOT:pss / rGO composite foam, the composite foam is tactile sensing material, and the upper and lower layers are both flexible PDMS film;The application uses simple and efficient hydrothermal synthesis method and subsequent flash instantaneous irradiation reduction method, and prepares a kind of three-dimensional porous PEDOT:pss / rGO composite foam, can effectively and maximumly keep the composite skeleton structure of original PEDOT:pss / GO foam, and makes PEDOT:pss polymer polymer and rGO sheet closely connected, so that PEDOT:pss / rGO composite foam has better mechanical elasticity and high conductivity, so that flexible tactile sensor has high sensitivity, ultra-low detection lower limit, short response time and good stability and other excellent performance, widely used in human health, motion monitoring and other fields.

The application discloses a tellurium-zinc-cadmium wafer structure convenient to detect and a preparation method and a nondestructive detection method thereof. The tellurium-zinc-cadmium wafer structure convenient to detect comprises a tellurium-zinc-cadmium wafer and two electrode layers. The two electrode layers are oppositely arranged and respectively located at two ends of the tellurium-zinc-cadmium wafer. The electrode layer comprises a conductive polymer PEDOT:PSS. The electrode layer comprises an interface bonding layer, a stress buffer layer and a wear-resistant contact layer. The application has the advantages of water-soluble removal, nondestructive detection after measurement and protection of the integrity of the tellurium-zinc-cadmium wafer.

The application relates to the technical field of memristor, and provides a chitosan-based memristor, which comprises, from bottom to top, a substrate, a buffer layer, a composite dielectric layer and a top electrode; the buffer layer is formed by heat treatment after PEDOT:PSS aqueous solution is spin-coated on the substrate; and the composite dielectric layer is formed by heat treatment after an ultrasonic composite solution formed by graphene oxide aqueous dispersion and chitosan acetic acid solution is spin-coated on the buffer layer. Through the synergistic architecture of the chitosan-graphene oxide composite dielectric layer and the PEDOT:PSS buffer layer, the prepared bio-based memristor has the effects of high switching, low operating voltage and good performance stability. Meanwhile, based on the stable high and low resistance states of the device, all seven basic logic operations including the non-gate, the and gate, the or gate, the not-and gate, the not-or gate, the exclusive or gate and the same or gate are completely realized on a single bio-based platform, the function correctness rate can reach 100%, and unexpected effects are achieved.

This application relates to the field of organic optoelectronic materials technology, specifically disclosing a polyglycerol-modified PEDOT:PSS aqueous dispersion, its preparation method, and its application. The PEDOT:PSS aqueous dispersion comprises the following raw materials: PEDOT:PSS aqueous dispersion, hydroxyl-terminated polyglycerol derivative, functional polar organic solvent, composite coupling agent, and deionized water. The preparation method of the PEDOT:PSS aqueous dispersion is as follows: the PEDOT:PSS aqueous dispersion is mixed with deionized water to obtain a basic dispersion; the hydroxyl-terminated polyglycerol derivative is added to the basic dispersion and stirred evenly; the functional polar organic solvent is added and stirred evenly; the composite coupling agent is added, and the pH value is adjusted to obtain the polyglycerol-modified PEDOT:PSS aqueous dispersion. This PEDOT:PSS aqueous dispersion exhibits excellent comprehensive performance, good film uniformity, good surface wettability, and high conductivity.

The technical concept of the present invention provides a biosensor and a method for manufacturing same, the biosensor comprising: a substrate extending in a first horizontal direction and a second horizontal direction intersecting each other; a source electrode and a drain electrode disposed on the substrate spaced apart from each other; a poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS) electrode electrically connected to the source electrode and the drain electrode and including PEDOT:PSS; a probe which is disposed on the PEDOT:PSS electrode and can bind to a target substance to be detected; and a linker for coupling the probe and the PEDOT:PSS electrode, wherein the PEDOT:PSS electrode comprises peaks and valleys having a height difference in the vertical direction on the upper surface of the substrate.

This invention discloses a method for preparing PBO-based multi-thermal-response sensing fibers and their application in high-temperature early warning. The preparation includes the following steps: S1, preparation of PNF dispersion; S2, preparation of PEDOT:PSS powder; S3, preparation of PEDOT:PSS@Te NWs; S4, preparation of Cs2NaInCl6:Mn 2+ Sb 3+ Preparation of crystals; S5, preparation of sensing fibers. This invention uses poly(p-phenylenebenzodioxazole) (PBO) fiber as the substrate and combines a thermoelectric and thermochromic dual-modal synergistic sensing mechanism, which has excellent flame retardancy, high mechanical strength, ultra-sensitive thermal response, and wide-range visual temperature detection performance.

The application discloses a preparation method of a tin-based perovskite light-emitting diode and belongs to the technical field of perovskite light-emitting diodes. The method comprises the following steps: synthesizing 2-(1-cyclohexenyl)ethylamine hydroiodide (CHEAI); preparing a perovskite precursor solution containing stannous iodide, CHEAI, tin powder, SnF2 and a reducing acid; spin-coating a PEDOT:PSS hole injection layer on an ITO anode; depositing a light-emitting layer by spin-coating and anti-solvent treatment; and evaporating a TPBi electron injection layer and a LiF / Al cathode. By introducing the reducing acid, the crystallization rate of the tin-based perovskite is effectively slowed down, Sn 2+ oxidation is inhibited, and the defect density of the thin film is reduced. The maximum brightness of the obtained red light PeLEDs reaches 476 cd / m 2 , the external quantum efficiency reaches 0.38%, which is about 41% and 58.3% higher than those of a device without the reducing acid, and the light-emitting peak position is stable at 611 nm.

The application discloses a method for improving the conductivity of a PEDOT:PSS film, and a PEDOT:PSS film, and belongs to the field of conductive films, wherein the method comprises the following steps: dropping a nitric acid solution on the surface of a PEDOT:PSS film to be treated, and then standing and drying to obtain an acid-treated PEDOT:PSS film; and the concentration of the nitric acid solution is greater than or equal to 10 mol / L. The application finds that the surface of the PEDOT:PSS film is treated by dropping an appropriate amount of a high-concentration nitric acid solution, and the conductivity of the PEDOT:PSS film can be significantly improved, and meanwhile, the acid treatment process does not need water washing, heat annealing and other steps, is more efficient and faster, provides a new technical means for the modification of the PEDOT:PSS film, and has a wide application prospect.

The application discloses a self-healing hydrogel with electric conductivity and anti-freezing performance and a preparation method thereof, and belongs to the technical field of high polymer materials. The PEDOT:PSS-DMSO mixed solution is prepared, the mixed solution is mixed with SL to prepare a P:P-D@SL compound suspension, and the addition of DMSO partially releases the chain entanglement of PEDOT:PSS, so that the electric conductivity and solubility of PEDOT:PSS are improved. Meanwhile, PEDOT:PSS carries -SO3H, and is combined with SL through electrostatic interaction and ion exchange, so that the stability and electric conductivity of the compound suspension are enhanced. In addition, DMSO can also reduce the crystallization point of the hydrogel by destroying the hydrogen bond interaction between water molecules. The self-healing hydrogel composite hydrogel with electric conductivity and anti-freezing performance is prepared by adopting a one-pot method combined with F-T circulation, the prepared hydrogel can be applied to the fields of equipment detection, strain sensing, intelligent skin, human health monitoring and medical devices, can perceive external environmental changes and make corresponding responses, and basically meets the demand for high-performance materials at present.

The application relates to a double-layer hydrogel material for bioelectric signal detection and a preparation method thereof, and belongs to the technical field of flexible electronic materials. By constructing a synergistically working double-layer structure, performance decoupling is realized in space: the lower layer is a high-efficiency mixed conductive layer, an ion / electron mixed conductive network is constructed by utilizing the synergistic effect of PEDOT:PSS and ions in the hydrogel, and low impedance and high charge transmission efficiency are ensured; the upper layer is a body temperature response interface layer, which is designed to trigger phase change by body temperature after being in contact with the skin, so that the skin topography is actively adapted, and stable, self-adapting and comfortable non-adhesive physical adhesion is realized. The application can realize high-fidelity bioelectric signal acquisition and long-term reliable wearing stability.

This invention discloses a method for preparing a gel evaporator with vertically oriented channels and a radial gradient structure, comprising the following steps: Step 1: Preparation of sodium alginate solution and hydroxypropyl cellulose solution; Step 2: Preparation of composite precursor solution; Step 3: Radial freeze-forming and freeze-drying; Step 4: Ion crosslinking and curing. This invention constructs a radially gradient-arranged layered channel using freeze-forming technology, forming a continuous pore and humidity gradient from the outside to the inside. This not only significantly improves capillary water transport and steam diffusion efficiency but also optimizes heat flow distribution and effectively inhibits heat diffusion into the bulk water phase. The introduction of PEDOT:PSS as a photothermal component endows the material with excellent solar energy absorption and photothermal conversion performance. Simultaneously, the crosslinking of sodium alginate with calcium ions forms a network, blocking the migration of salt ions to the evaporation interface and preventing salt crystallization from clogging the channels. The process is simple, the structure is controllable, and it is suitable for high-salinity seawater desalination, industrial wastewater evaporation and concentration, and other fields.

The application discloses a kind of functional conductive hydrogel and its preparation method and application, belong to the technical field of hydrogel.The preparation method includes: carbon-based nanomaterial is added to PEDOT:PSS solution ice bath ultrasonic, obtain the mixed solution of carbon-based nanomaterial and PEDOT:PSS;Carbon-based nanomaterial and PEDOT:PSS mixed solution is freeze-dried treatment, obtain double conductive filler fiber;F127DA powder is added to photo-initiator solution and is ice bath stirring, obtain F127DA solution;Double conductive filler fiber is dispersed in F127DA solution by ice bath stirring, obtain the uniformly dispersed conductive gel precursor ink;Conductive gel precursor ink is reacted under light curing condition, and the functional conductive hydrogel obtained.The functional conductive hydrogel can be quickly cured and formed on demand by ultraviolet light induction, shows good biocompatibility, not only can be used as "skin electronic tattoo" towards multi-modal application scenarios such as strain and humidity sensing, but also can effectively stimulate in-vivo sciatic nerve under low voltage.

The application provides a MXene-based flexible conductive film and a preparation method thereof, and is prepared by the following method: titanium aluminum carbide is etched by hydrochloric acid and lithium fluoride to obtain a single-layer MXene dispersion liquid; a reduced graphene oxide aqueous dispersion liquid, the single-layer MXene dispersion liquid and a PEDOT:PSS solution are mixed and uniformly mixed under nitrogen protection, NaOH solution is added, and stirring and suspension are carried out; a self-supporting film is obtained by vacuum filtration; the film is peeled off by freeze-drying, immersed in concentrated hydrochloric acid, washed and dried to obtain the MXene-based flexible conductive film. The flexible conductive film has high specific surface area and good cycle performance. A flexible solid-state supercapacitor is prepared by using the flexible conductive film, and the flexible solid-state supercapacitor has high energy density and power density, and good electrochemical stability and mechanical flexibility. The application has simple process, low cost and is suitable for large-scale production, and is suitable for flexible wearable energy storage devices and has great popularization and application value.

The application discloses an ultrasonic response type composite catalyst for carbon capture and preparation and application thereof. The composite catalyst comprises a carbonic anhydrase mimic enzyme, a conductive polymer PEDOT:PSS and a piezoelectric material linear zinc oxide. The composite catalyst provided by the application can significantly improve the CO2 hydration reaction efficiency under ultrasonic excitation and promote the water phase CO2 capture efficiency. Compared with natural carbonic anhydrase, the composite catalyst has the advantages of low cost, easy availability, acid and alkali resistance, excellent thermal stability and good reusability, and has wide application prospects in the fields of CO2 geological sequestration, chemical liquid phase carbon capture and air carbon capture.

This invention discloses a modified MXene conductive polymer-bacterial cellulose composite fiber electrode, its preparation method, and its applications, belonging to the field of composite conductive ultra-strong fiber preparation. The invention involves mixing K-MXene and a conductive polymer to obtain a composite conductive ink; subsequently, a strip-shaped BC hydrogel is crosslinked with the composite conductive ink via hydrogen bonds to obtain K-MXene / PEDOT:PSS@BC conductive hydrogel; next, the conductive hydrogel is subjected to wet-stretching and wet-twisting techniques to obtain K-MXene / PEDOT:PSS@BC conductive composite large fibers; finally, after PDMS dispersion impregnation coating and solvent replacement, a p-K-MXene / PEDOT:PSS@BC composite conductive large fiber electrode is obtained. The fiber electrode prepared by this invention can be woven with commercial yarns into smart fabrics for reliable detection of self-powered sensors and human body signals.

This invention discloses a silicone protective film with long-lasting antistatic agent adhesion, its preparation method, and its application, belonging to the field of protective film technology. The silicone protective film sequentially comprises a release layer, a silicone adhesive layer, and an antistatic base layer; the antistatic base layer comprises an antistatic polymer layer and a PET substrate layer; using a silane coupling agent as a bridge, the hydrolyzed groups of the silane coupling agent are chemically bonded to the surface of the PET substrate, and the organic ends are combined with the MBA crosslinking network, thereby fixing the antistatic agent PEDOT:PSS onto the PET substrate to form the antistatic polymer layer. This invention discloses a silicone protective film with long-lasting antistatic agent adhesion, where the antistatic agent adheres firmly, the protective film withstands more than 5000 abrasion cycles, and the surface resistance remains at 10 Ω. 7 With an Ω rating of around 100 ohms, the performance is durable and stable; the overall light transmittance of the protective film is ≥93%, and the haze is ≤0.6%, meeting the requirements for use in optical-grade products and suitable for surface protection of precision electronic equipment and optical components.

This invention discloses a high-density spunbond nonwoven fabric and its preparation method, belonging to the technical field of PET textile materials. The nonwoven fabric of this invention is formed by laying and solidifying a core-sheath structure of composite fibers. The composite fibers include a matrix layer composed of carboxylated modified PET ionomer, and a conductive functional layer that spontaneously forms during spinning through a solvent vapor-induced phase separation effect and continuously coats the outer surface of the matrix layer. The conductive functional layer contains PEDOT:PSS and a phosphorus / nitrogen-containing ionic liquid. A transition layer with a concentration gradient of PET and PEDOT:PSS is provided between the matrix layer and the conductive functional layer. During preparation, PET, PEDOT:PSS, and the ionic liquid are mixed to form a spinning solution, which is then spun under high humidity. The conductive components spontaneously migrate to the fiber surface using the solvent vapor-induced phase separation effect, and the fabric is then solidified into a web. The nonwoven fabric of this invention exhibits durable conductivity, excellent flame retardancy, and high tensile strength.

This invention discloses a multifunctional conductive polymer composite material, its preparation method, and a cathode material. The preparation method includes: providing a first mixed solution and a second mixed solution; the first mixed solution is composed of a PEDOT:PSS aqueous solution, ethylene glycol, and a PVA aqueous solution; the second mixed solution is composed of β-cyclodextrin, tannic acid, and water; under stirring conditions, dispersing the second mixed solution into the first mixed solution to obtain a pre-composite system; dispersing a crosslinking agent into the pre-composite system to obtain a co-crosslinking precursor solution; and preparing the co-crosslinking precursor solution into a film to obtain the multifunctional conductive polymer composite material. This invention successfully transforms the conformation of the PEDOT chain into a highly conductive quinone structure by introducing dopants ethylene glycol (EG) and β-cyclodextrin and tannic acid (TA), significantly improving the conductivity of the composite material. Simultaneously, the introduction of the PVA polymer network comprehensively regulates the water solubility of the conductive polymer composite material, greatly improving the stability of the cathode material.