39 results about "Mixed conductor" patented technology

The invention relates to the technical field of lithium ion batteries, in particular to a preparation method of a lithium negative electrode with an ion / electron mixed conductor framework and application of the lithium negative electrode in the lithium ion battery. In order to solve the problems of lithium dendrite growth, volume expansion, corrosion and the like of the existing lithium negative electrode material in the battery cycle process, the invention provides an innovative solution that a double-fiber network skeleton consisting of a LiB compound and VGCF is constructed through a mechanical rolling method and a processing regulation and control process so as to enhance the electrode structure stability and inhibit the generation of lithium dendrites. The rate efficiency, the cycle life and the mechanical property of the prepared lithium negative electrode material are evaluated through a symmetric battery test, microstructure and electrochemical property analysis is carried out through TEM, SEM, XRD and other means, and the lithium negative electrode material has excellent comprehensive mechanical property, can inhibit volume expansion, simplifies the processing flow, and is suitable for large-scale production. And the method is suitable for commercial production of new energy batteries. By implementing the invention, the development of a lithium ion battery technology is expected to be promoted, and the requirements of modern society on an efficient and safe energy storage system are met.

The invention discloses an ion-electron mixed conductor material and a preparation method and application thereof. The ion-electron mixed conductor material is prepared by doping a heterovalent transition metal element ion pair in a solid electrolyte. The different-valence transition metal element ion pairs comprise same transition metal elements with different valence states or different transition metal elements with different valence states; the solid electrolyte is halide solid electrolyte. Wherein the solid electrolyte structure provides a lithium ion transmission channel, and the transition metal element is rapidly oxidized and reduced to provide an electron transmission channel. The ion-electron mixed conductor is applied to a composite positive electrode of a solid-state battery, can simultaneously transmit lithium ions and electrons, shortens the transmission paths of the lithium ions and the electrons, remarkably improves the content of positive electrode active substances, improves the cycling stability of the solid-state battery, and has a relatively good application prospect in the solid-state battery.

The invention discloses a monovalent alkali metal ion doped iron-based perovskite type ceramic membrane as well as a preparation method and application thereof, and belongs to the technical field of mixed conductor oxygen permeation ceramic membrane materials. The method comprises the following steps: (1) synthesizing layered rock salt oxide M1 by adopting an EDTA-CA (Ethylene Diamine Tetraacetic Acid-Carboxylic Acid) sol-gel method; (2) mixing the M1 with other metal carbonate or oxide according to the stoichiometric ratio of the target perovskite oxide M2, and preparing a solid precursor M1 + M2 through a solid-phase reaction method; and (3) sintering the precursor into a compact ceramic membrane by using a static pressure-roasting method. According to the invention, the problem that monovalent alkali metal ions are easy to volatilize in a high-temperature solid-phase reaction is effectively solved through a process of stabilizing the alkali metal at a low temperature and then forming a film at a high temperature, and the monovalent alkali metal ions are successfully doped into iron-based perovskite crystal lattices. The prepared ceramic membrane has the advantages that the oxygen permeation flux is obviously improved while the good structural stability is maintained, and the ceramic membrane is particularly suitable for oxygen separation in an oxygen-enriched combustion process.

The invention relates to a power cable (20) comprising: - a hybrid conductor (21) comprising: a central portion (22) of the Litz wire type having a plurality of electrically conductive strands (23) electrically insulated from each other, a crown portion (25) having electrically conductive strands (26) not electrically insulated from each other, the thickness of the crown portion (25) being calculated to be less than or equal to a skin thickness (δ), and - an insulator (27) disposed around the hybrid conductor (21). Figure for abbreviation: Figure 5

The invention relates to the technical field of membranes and membrane separation, in particular to a design and technological process of a mixed conductor ceramic oxygen-permeable membrane module, the module is composed of a ceramic oxygen-permeable membrane bundle, a heat storage layer, a positioning layer, a sealing layer and a vacuum layer from top to bottom in sequence, the heat storage layer is provided with an air outlet, the positioning layer is provided with an air inlet, and the sealing layer is provided with an air outlet. The sealing layer is provided with a ceramic oxygen-permeable membrane bundle, the ceramic oxygen-permeable membrane bundle penetrates through the heat storage layer, the positioning layer and the sealing layer to reach the vacuum layer, the vacuum layer is connected with negative pressure equipment, the heat storage layer plays a role in protecting the ceramic oxygen-permeable membrane bundle, and fresh air enters the assembly from the positioning layer when the assembly runs. After self heat exchange, the air is discharged from an air outlet of the heat storage layer, and meanwhile, fresh air entering the assembly provides an oxygen-enriched source for the ceramic oxygen permeation membrane bundle. The mixed conductor ceramic oxygen permeation membrane module provided by the invention is reasonable in structure, convenient to seal and simple to operate, self-cooling can be realized without additionally arranging a cooling heat exchange system, the energy consumption is greatly reduced, and the mixed conductor ceramic oxygen permeation membrane module has a wide application scene.

This invention discloses a hybrid conductor with continuous ion and electron transport channels, its preparation method, and its applications, belonging to the field of solid-state lithium metal battery technology. This invention uses a lithiophilic modified titanium nitride nanotube array and a solid electrolyte interface film to form a hybrid conductor with continuous ion and electron transport channels. This promotes uniform deposition and stripping of lithium within the nanotubes via a creep mechanism, effectively releasing stress and improving the battery's electrochemical performance. The titanium nitride nanotube array not only improves the overall conductivity of the electrode material but also adapts to the volume changes of the negative electrode during charge-discharge cycles. Furthermore, titanium nitride is stable for lithium, reducing side reactions during cycling.

The invention relates to the technical field of conductor materials, in particular to an electron-lithium ion mixed conductor material and a preparation method thereof. According to the technical scheme, the sulfide solid electrolyte comprises a sulfide solid electrolyte core; the surface of the inner core is coated with the LiMS coating layer, M is at least one of V, Cr, Fe, Ni and Nb, the sulfide solid electrolyte is Li < 6-X > PS5-XCl < 1 + X >, x is greater than or equal to 0 and less than or equal to 0.6, and the thickness of the LiMS < 2 > coating layer is nanoscale. A novel electron-lithium ion mixed conductor material is successfully developed through an optimally designed in-situ reaction and preparation process, and the material can provide efficient ion and electron transmission paths in a positive electrode at the same time, significantly reduce interface impedance, improve the utilization rate of active substances, and improve the performance of a lithium ion battery. Therefore, the discharge capacity and the electrochemical performance of the all-solid-state battery are greatly improved.

The invention belongs to the technical field of solid-state batteries, and discloses an alloy ion / electron mixed conductor and application thereof. The mixed conductor is prepared by taking antimony powder, lithium powder or sodium powder and at least one metal powder of lanthanum, scandium, yttrium, aluminum, gallium and indium as raw materials through ball-milling mixing, tube sealing annealing and quenching treatment. When the mixed conductor is used as an interlayer of a lithium / sodium metal negative electrode and an electrolyte in the solid-state battery, the growth of lithium / sodium dendrites can be effectively inhibited through a specific nucleation mechanism, and the utilization rate of the metal negative electrode is improved; when the conductive additive is used as a conductive additive of a silicon, red phosphorus or graphite / hard carbon negative electrode material, by virtue of high ion / electron conductivity and good potential stability, the interface side reaction is reduced, and the rate capability and the cycling stability of the negative electrode material are remarkably improved.

The invention provides an amorphous substance coated positive electrode active material as well as a preparation method and application thereof. In the invention, the amorphous substance is selected from one or more of transition metal silicide, boride, phosphide, sulfide, selenide, carbide, amorphous carbon or amorphous silicon materials. The amorphous substance coating in the invention can form a compact self-healing passivation layer at the interface of the positive electrode material, not only can inhibit oxygen precipitation under high voltage in dynamics, but also can be combined with Li alkali metal to become a mixed conductor of ions and electrons, so that the conduction performance of the electrons and lithium ions is improved, and the interface impedance is reduced. Meanwhile, the surface of the positive electrode material can be uniformly coated by a special coating mode of the amorphous substance, so that side reaction between the positive electrode material and electrolyte is effectively inhibited, a solid electrolyte membrane on the surface of the positive electrode material is stabilized, formation of microcracks in the material is reduced, and the cycling stability is improved.

The application discloses a two-end vertical structure organic electrochemical biomimetic synapse device and a preparation method and a biomimetic neural morphological chip thereof. The device comprises a bottom electrode, a first organic mixed ion-electron conductor layer, a first ion gel layer and a top electrode which are sequentially stacked. The first ion gel layer is configured to provide anions. The first organic mixed ion-electron conductor layer is configured to transport anions and electrons. The top electrode is configured to apply a bias voltage to drive the migration of anions. In terms of structure, the four-layer stacked structure realizes ion path innovation, and the vertical channel sharply reduces the delay time to the microsecond level. In terms of device mechanism, the low reduction potential of the organic ion-electron mixed conductor and the depletion of the de-doped carriers are utilized, the current spontaneously reverses under the action of a certain voltage, and the simulation of artificial synapse sensitization and habituation is realized at the single device level.

The invention provides a proton-electron mixed conductor material and a preparation method thereof, a perovskite ceramic hydrogen separation membrane and application, the structural formula of the proton-electron mixed conductor material is BaZraXbO3-delta, the element X is a transition metal element, delta is more than 0 and less than or equal to 0.5, a is more than 0 and less than 1, b is more than 0 and less than 1, and a + b is equal to 1. The proton-electron mixed conductor material prepared by the method has relatively high conductivity, has relatively excellent structural stability in the application process, is relatively low in preparation cost and has a wide industrial application prospect.

The application discloses a cermet composite structure film and a preparation method and application thereof, and belongs to the technical field of composite film preparation. First, the foam metal net is cut to a target size, ultrasonic cleaning and drying are performed; then, the foam metal net is immersed in a slurry containing metal oxides, and is dried to obtain a porous metal net covered with metal oxides; ceramic powder, a solvent and an adhesive are mixed to prepare a ceramic powder slurry; the ceramic powder slurry is filled in the pores of the porous metal net through a vacuum suction method, and is dried and dry-pressed to form a film, and the film is sintered in an inert atmosphere containing hydrogen to obtain the cermet composite structure film. The prepared cermet composite structure film maximally reduces the volume proportion of the metal phase (<10%) under the premise of keeping the metal phase connected, thereby enhancing the function (such as conducting oxygen ions, protons and the like) of the ceramic phase, and meanwhile, the cermet composite structure has high mechanical strength, and has a good application prospect in a mixed conductor film reactor.

The application relates to the field of proton ceramic fuel cells, and provides a high-performance proton ceramic fuel cell heterogeneous structure cathode material and a preparation method thereof. 2‑ x Zr x O 5+δ , wherein Ln=La, Pr, Sm, Gd or Eu, 0.04<=x<=0.5, and delta is the non-stoichiometry of oxygen. The cathode material provided by the application comprises: a substrate (Ln 1 / (2‑x) Ba (1‑x) / (2‑x) )2Co2O 5+δ and BaZrO3 nanoparticles precipitated and anchored on the surface of the substrate. The material LnBaCo2O 5+δ is doped with element Zr at the B site, so that the BaZrO3 nanoparticles are in-situ desolvated and anchored on the surface of the substrate in a high-temperature oxidizing atmosphere, forming an ion-electron mixed conductor and a proton conductor heterogeneous structure, which makes the nano-composite cathode material have a triple electric conduction (oxygen ion-proton-electron) reaction region, also has good oxygen reduction catalytic activity, excellent chemical and structural stability, and is a universal method for preparing excellent proton ceramic fuel cell cathode materials.

The invention provides a positive electrode composite material. The positive electrode composite material comprises a positive electrode base material, a first coating layer and a second coating layer, wherein the first coating layer and the second coating layer cover the surface of the positive electrode base material and are sequentially arranged outwards; the raw materials of the first coating layer comprise an alkene polymer with hydroxyl and / or carboxyl functionalized side groups on a main chain, a transition metal chalcogenide accounting for 0.5%-3.5% of the mass of the alkene polymer and an oxide of cobalt; the mass ratio of the transition metal chalcogenide to the cobalt oxide is 1: (0.5-3.5). The second coating layer is prepared from the following raw materials: a nitrile compound containing alkenyl and lithium salt of which the mass is 20 to 65 percent of that of the alkenyl polymer. The inner layer provides a flexible adhesion substrate, a fast ion channel and an anion anchoring point; and an ion-electron mixed conductor is formed on the outer layer. The interface side reaction is effectively inhibited, the ion / electron conductivity, the mechanical strength and the thermal stability are improved, and the comprehensive performance of high capacity, long circulation, high magnification and high safety is finally realized.

The application discloses a kind of nanometer coating modified ceramic membranes for oxygen-enriched combustion and a preparation method thereof, and belongs to the technical field of ceramic oxygen-permeable membrane.The ceramic membrane grows in situ a zinc-tin composite oxide nanostructure layer with specific stoichiometric ratio and micro-morphology on the surface of mixed conductor ceramic oxygen-permeable membrane matrix, significantly improving the oxygen permeability and high temperature stability.The three-dimensional "nanoflower" porous covering layer structure can effectively increase the oxygen permeation active sites, promote the surface exchange and bulk diffusion of oxygen ions.The perovskite oxide selected as the matrix has excellent oxygen ion and electron mixed conduction characteristics, providing a basis for high oxygen permeation flux.The preparation method precisely controls the steps of matrix membrane preparation, pretreatment, precursor preparation, in-situ hydrothermal growth and programmed temperature calcination, and cooperatively improves the high temperature oxygen permeation flux, CO2 corrosion resistance and long-term stability of the membrane, solving the problem that flux and stability are difficult to balance in the prior art.

The present application relates to a kind of mixed conductor layer coated silicon monoxide negative electrode material, the material includes prelithiated SiO x Material, the surface of the prelithiated SiO x Material has coating layer, and the coating layer structure is the amorphous carbon layer of internal uniform dispersion lithium ion conduction active site.The preparation method of the material includes the following steps: preparation precursor coated SiO x Material: in precursor solution SiO x / C particle is added, using coating process, obtains precursor coated SiO x Material;Configuration chemical prelithiation agent solution;Lithiation reduction: the precursor coated SiO x Material is soaked in prelithiation agent solution, stirring for a period of time under inert atmosphere, then washing and drying, obtain lithiated SiO x Material;Heat treatment: the lithiated SiO x Material is calcined, and then heat preservation, obtains mixed conductor layer coated prelithiated SiO x Material.

The invention discloses a dual-purpose mixed conductor aqueous lithium ion battery adhesive and a preparation method thereof, and the preparation method comprises the following steps: (1) placing sodium alginate and urea in ethanol, stirring at room temperature, standing, and carrying out suction filtration to obtain a component 1; (2) dissolving dopamine hydrochloride in a Tris-HCl buffer solution, heating and stirring at 50-75 DEG C, and carrying out suction filtration to obtain a component 2; and (3) mixing the component 1 and the component 2. The adhesive can be used for being matched with a lithium ion positive electrode active material lithium iron phosphate and can also be used for being matched with a lithium ion battery negative electrode active material silicon. According to the adhesive disclosed by the invention, the conductive ion polymer and the conductive electron polymer are physically blended, so that the adhesive is endowed with conductivity, and the lithium ion battery electrode still has excellent electrochemical performance under the condition of reducing the dosage of the adhesive and the conductive agent. The electrode of the lithium ion battery can be loaded with more active materials, and the capacity of the lithium ion battery is improved. The adhesive provided by the invention is a water-based adhesive and is more environment-friendly.

The invention discloses a high-crystallinity ion-electron mixed conductor material and a coated positive electrode material and application thereof, the ion-electron mixed conductor material is composed of a crystalline organic matter and at least one electrolyte salt, the crystallinity of the material is greater than 50%, and the material has high ionic conductivity and electronic conductivity. The ionic conductivity at room temperature can exceed 1 * 10 <-4 > S / cm, and the electronic conductivity at room temperature also exceeds 1 * 10 <-4 > S / cm. Due to the characteristic of low Young modulus of the ion-electron mixed conductor material, the surface of the positive electrode material can be uniformly and thinly coated with the ion-electron mixed conductor material, direct contact between the positive electrode material and a solid electrolyte is avoided, and excellent stability and rate capability are achieved. And the all-solid-state battery can stably work and circulate under low pressure.

The invention relates to a power cable (20) comprising:-a hybrid conductor (21) comprising:-a central litz wire portion (22) comprising a plurality of electrically conductive strands (23) electrically insulated from each other; -an annular portion (25) comprising a plurality of electrically conductive strands (26) that are not electrically insulated from one another, the calculated thickness of the annular portion (25) being less than or equal to the skin thickness (delta); and-an insulator (27) arranged around the hybrid conductor (21).

This invention discloses a low-power biomimetic rhizosphere electro-growth promoting matrix based on ion bridging, its construction method, and its application. The biomimetic rhizosphere electro-growth promoting matrix provided by this invention comprises the following components: a three-dimensional porous bioscaffold, which is a biomimetic rhizosphere porous structure formed by cross-linking carboxymethylated cellulose nanoparticles through ion bridging; and ion-electron hybrid conductor units distributed on the surface and interior of the three-dimensional porous bioscaffold, composed of an electronic conductor material providing electronic conduction and an ion polymer providing ion conduction and a gel skeleton. This invention achieves efficient and biocompatible energy and signal transmission between plants and external circuits by constructing an ion bridging conduction mechanism, thereby achieving the goal of efficient growth promotion under low power.

The invention discloses an ion-electron mixed conductor coated silicon-carbon composite material for a solid-state battery, and relates to the technical field of lithium battery material preparation. The silicon-carbon composite material is prepared from the following materials in parts: 10 to 500 parts of silicon, 10 to 600 parts of carbon, 1 to 450 parts of a carbon-based material, 10 to 300 parts of a conductive polymer, 100 to 300 parts of metal magnesium powder, 100 to 400 parts of nano zinc powder, 1 to 120 parts of lithium silicate and 1 to 200 parts of an organic lithium compound. Through cooperation of the metal magnesium powder and the conductive polymer, the volume expansion rate is controlled to be 50% or below, and it is guaranteed that the electrode structure is stable; carbon, a carbon-based material and nano zinc powder construct an electron conduction network, lithium silicate and an organic lithium compound form an ion conduction channel, the problem of multi-component compatibility is solved through reasonable matching and process, high-activity lithium is replaced with low-activity metal, the preparation safety is improved, raw materials are industrial conventional materials, the process is mature, performance and cost are considered, and industrialization requirements are met.

The invention discloses an organic electrochemical bionic synaptic device based on a two-end vertical structure, a preparation method thereof and a bionic neuromorphic chip. The device comprises a bottom electrode, a first organic mixed ion electron conductor layer, a first ion gel layer and a top electrode which are stacked in sequence, the first ionic gel layer is configured to provide anions; the first organic mixed ion electron conductor layer is configured to transport anions and electrons; the top electrode is configured to apply a bias voltage to drive anion migration. According to the structure, ion path innovation is realized by adopting a four-layer stacked structure, and the delay time is sharply reduced to a microsecond level through a vertical channel; on the device mechanism, the low reduction potential of an organic ion-electron mixed conductor and depletion of a de-doped carrier are utilized, current spontaneous reversal occurs under the action of a certain voltage, and simulation of artificial synapse sensitization and habituation is realized on the single device level.

This all-solid-state secondary battery comprises a positive electrode layer, a negative electrode layer, and a solid electrolyte layer between the positive electrode layer and the negative electrode layer. The positive electrode layer includes a positive electrode current collector and a positive electrode active material layer on one surface or both surfaces of the positive electrode current collector. The positive electrode active material layer includes a positive electrode active material and a mixed ionic and electronic conductor. The mixed ionic and electronic conductor contains a metal oxide represented by MxNbyOz-δ (0≤x≤100; 0<y≤100; 0<z≤100; 0≤δ<z, x<y, and M is an element selected from Groups 3 to 15 of the Periodic Table of Elements). The negative electrode layer includes a negative electrode current collector and a first negative electrode active material layer on one surface of the negative electrode current collector.

The invention discloses a lanthanum tungstate type mixed conductor biphase hydrogen permeation membrane material as well as a preparation method and application thereof, and belongs to the technical field of hydrogen separation membrane materials. The chemical general formula of the hydrogen permeation membrane is xLa5.5 (W0. 6Mo0. 4) aZbO11.25-delta-yLa0. 87Sr0. 13CrcZdO3-delta, Z is one of Fe and Ni, delta represents the number of gained and lost oxygen atoms and is a non-stoichiometric ratio, a is larger than 0 and smaller than or equal to 1, b is larger than or equal to 0 and smaller than 0.1, c is larger than 0 and smaller than or equal to 1, d is larger than or equal to 0 and smaller than 0.1, x is larger than 0 and smaller than 1, y is larger than 0 and smaller than 1, and x + y = 1, a + b = 1 and c + d = 1. According to the invention, the mixed conductor biphase hydrogen permeation membrane is constructed by introducing an electron conductive phase, and metal cations are doped on the basis of the mixed conductor biphase hydrogen permeation membrane, so that the electron and proton conductivity of the material is improved, and the hydrogen permeability of the membrane material is greatly improved. The double-phase membrane material has good chemical stability in a carbon dioxide atmosphere, can be used for hydrogen separation in hydrogen-containing mixed gas, and can also be used for manufacturing a hydrogen-related membrane reactor.

A hybrid adaptive multi-band ferrite helix array antenna system for HF communications incorporates a segmented ferrite core with controllable segments using optimized ferrite materials for specific frequency ranges, and features both flat copper tape and Litz wire conductors with electronic switching for optimal performance across frequency ranges. A segmented cap hat system varies electrical diameter control and elevation patterns. Electronic switching networks with PIN diodes and distributed varactor diodes enable continuous frequency tuning. Three-dimensional beam steering occurs through coordinated control of segment phasing, parasitic elements, and cap hat asymmetry, and achieves a broad operating frequency coverage of 1.6 MHz to 54 MHz with automatic mode selection and machine learning optimization. The compact package measures 420 mm height by 200 mm diameter, providing comprehensive HF and 6-meter band performance, with efficiency ranges from 15% to 85% and sub-100 μs pattern switching capability. This system is suitable for mobile and space-constrained applications.

An ion-electron mixed conductor ceramic comprises Ag-modified LLZTO ceramic; a preparation method of the ion-electron mixed conductor ceramic includes the following steps: adding LLZTO ceramic into a solution containing a soluble silver salt and a reducing agent to obtain silver oxide, and reacting the silver oxide under the action of the reducing agent to prepare the Ag-modified LLZTO ceramic; a composite solid electrolyte comprises the aforementioned ion-electron mixed conductor ceramic, a lithium salt and a polymer; a battery electrode material comprises the aforementioned ion-electron mixed conductor ceramic; a battery comprises the aforementioned ion-electron mixed conductor ceramic or the aforementioned solid electrolyte; when the modified ceramic is applied in electrode materials, it can simultaneously play a role in transporting electrons and ions, improve electrode kinetics, and has good application prospects in the battery field.

The invention relates to the technical field of oxygen permeation membrane materials, in particular to a P-element-doped K2NiF4 type mixed conductor ceramic oxygen permeation membrane material and a preparation method and application thereof, and the chemical general formula is Pr2Ni < 0.95-x > Mo < 0.05 > PxO < 4 + delta > (x is greater than or equal to 0 and less than or equal to 0.5). Nonmetal P < 5 + > ions are partially doped into B-site crystal lattices, and high charges and strong P-O bond energy of the B-site crystal lattices are utilized, so that the crystal lattice stability is effectively enhanced, and phase change and decomposition in a high-temperature reducing atmosphere are inhibited. And meanwhile, extra oxygen vacancies are introduced by non-equivalent substitution of P < 5 + > to Ni < 2 + > through a charge compensation mechanism, so that the oxygen ion conductivity and the oxygen permeation flux are remarkably improved. The material shows excellent tolerance in a CO2 environment, the oxygen permeation performance is remarkably superior to that of an undoped material, and the material is particularly suitable for membrane reactor processes such as synthesis gas preparation through methane partial oxidation, propane oxidative dehydrogenation and the like and high-temperature oxygen separation and purification, and has a wide industrial application prospect.

The invention discloses a nano-coated modified ceramic membrane for oxygen-enriched combustion and a preparation method of the nano-coated modified ceramic membrane, and belongs to the technical field of ceramic oxygen permeation membranes. According to the ceramic membrane, the zinc-tin composite oxide nano-structure layer with a specific stoichiometric ratio and microstructure grows on the surface of the mixed conductor ceramic oxygen permeation membrane substrate in situ, so that the oxygen permeation performance and the high-temperature stability are remarkably improved. Wherein the three-dimensional nanoflower-shaped porous covering layer structure can effectively increase oxygen permeation active sites and promote surface exchange and bulk phase diffusion of oxygen ions. The perovskite type oxide selected by the substrate has excellent oxygen ion and electron mixed conduction characteristics, and provides a basis for high oxygen permeation flux. According to the preparation method, the high-temperature oxygen permeation flux, CO2 corrosion resistance and long-term stability of the membrane are synergistically improved through precise control of the steps of matrix membrane preparation, pretreatment, precursor solution preparation, in-situ hydrothermal growth, temperature programming roasting and the like, and the problem that the flux and the stability are difficult to consider at the same time in the prior art is solved.

The application relates to MoS 2‑ The application relates to a transition metal monatomic material-sulfur positive electrode and a preparation method and application thereof, which comprises MoS2-transition metal monatomic material and elemental sulfur, the d-p hybridization between the MoS2 carrier and the transition metal monatomic material is used to control the electronic structure and the two-dimensional structure advantage, the adsorption and conversion capacity of polysulfide is enhanced, ion migration is promoted, and the ion and electronic conductivity are combined. The ion-electron mixed conductor replaces the traditional solid-state electrolyte, a stable sulfur-mixed conductor two-phase interface is constructed, the contact rate of sulfur and the conductive network is improved, the active area of sulfur is expanded, more sulfur is excited to participate in the redox reaction, and therefore the charge-discharge specific capacity and the cycle life of the full-solid-state lithium-sulfur battery are improved.