774 results about "Ion migration" patented technology

The invention provides a high-stability lithium-rich manganese-based positive electrode material and a preparation method thereof, and relates to the technical field of lithium-rich manganese-based positive electrode materials, and the method comprises three steps of preparation of a homogeneous precursor, solid-state mechanical fusion doping and coating, and high-temperature sintering; a lithium-rich manganese-based precursor is prepared by adopting a homogeneous coprecipitation process, uniform distribution of metal ions is ensured, then an aluminum source, a zirconium source and a fluorine source are introduced as doping agents, phosphate and a titanate coating agent are combined, doping and coating integrated treatment is realized through mechanical ball milling, and the lithium-rich manganese-based composite material is obtained. And finally, mixing with a lithium source in an argon atmosphere, and carrying out high-temperature sintering of temperature programming and staged heat preservation to form a stable composite coating layer in situ. Therefore, manganese ion migration is effectively inhibited through lattice doping, a layered structure is prevented from being converted into spinel or rock salt phase, meanwhile, a nanoscale ion / electron transmission channel is constructed, interface impedance is reduced, and the charging and discharging efficiency under high voltage is improved.

The invention discloses a perfluoropolyether blended PEGDE-based solid electrolyte and a preparation method thereof, and belongs to the technical field of lithium metal battery solid electrolyte materials. Adding SnCl4 and TAA into the nanocellulose precursor solution, stirring, carrying out suction filtration, and drying to obtain a SnS2 (at) NC support layer; and mixing and stirring PEGDE, LiDFOB, LiTFSI and PFPE to obtain PEGDE-based solid electrolyte slurry, coating the SnS < 2 > (at) NC supporting layer with the PEGDE-based solid electrolyte slurry, and performing in-situ polymerization in a drying oven to obtain the PEGDE-based solid electrolyte. The ultrathin perfluoropolyether blended PEGDE-based solid electrolyte prepared based on PEGDE in-situ polymerization and perfluoropolyether blending and in combination with nanocellulose enhancement has the advantages of stable anode interface, high mechanical strength, high decomposition voltage and high ion transference number.

The invention provides a preparation method of a laminated cell, the laminated cell and a photovoltaic module, and can be widely applied to the photovoltaic technical field, the preparation method of the laminated cell comprises the following steps: providing a bottom cell, and forming a composite layer on the bottom cell; a first transmission layer is formed on the composite layer, and a skeleton layer is formed on the first transmission layer through double-source evaporation; wherein a first evaporation source of the double-source evaporation comprises inorganic cesium salt, and a second evaporation source of the double-source evaporation comprises inorganic lead salt and inorganic rubidium salt; coating organic salt on the framework layer to form a perovskite layer; forming a second transmission layer and an electrode on the perovskite layer to obtain a laminated cell; wherein carriers of the first transmission layer and the second transmission layer are different. The framework layer is formed through double-source evaporation, the proportion is better controlled, through rubidium and lead, a positive effect can be generated on crystallization, stress release and the like of perovskite in the crystallization process, part of rubidium salt can be combined with PbI2 decomposed on the surface, ion migration is reduced, and the device stability is improved.

A method of separating ions based on mobility is provided. The method involves receiving ions by an ion mobility spectrometry device having a separation region, and causing the ions to travel through at least a portion of the separation region in a first direction along a path and separate based on ion mobility. The method further involves causing the separated ions to maintain a relative degree of separation therebetween and travel in a second direction along the path while maintaining the relative degree of separation therebetween. The second direction being opposite to the first direction. The ions are then caused to travel in the first direction along the path a second time to further separate the ions based on ion mobility. An ion mobility spectrometry device performing the foregoing method is also provided.

The invention provides a method and a system for predicting the durability of an underwater non-dispersible concrete structure, and relates to the technical field of material engineering. Respectively measuring an anti-permeability vector consisting of an unsteady state chloride ion migration coefficient, an anti-permeability grade and an oxygen permeation coefficient, a freezing resistance vector consisting of a mass loss rate and a dynamic elastic modulus retention rate, and a corrosion resistance vector consisting of a mass change rate in a sulfate environment, the dynamic elastic modulus retention rate and a corrosion rate in a carbonic acid environment; a fitting formula among impermeability, freezing resistance and corrosion resistance is constructed based on a known high-durability concrete sample, and by calculating the decoupling degree of each vector combination of the concrete sample relative to the high-durability concrete sample, multi-parameter collaborative evaluation and accurate prediction of the durability of the concrete structure are realized.

The invention discloses a preparation method of a manganese-doped iron-based sulfide / nitrogen-doped reduced graphene oxide composite electrode material for a sodium-ion battery, a simple solvothermal method is combined with annealing treatment, and iron atoms in a hexagonal system are replaced by part of manganese atoms in a hydrothermal process to form multivalent iron-based sulfide, so that the composite electrode material is prepared. The manganese-doped iron-based sulfide / nitrogen-doped reduced graphene oxide composite electrode material for the sodium-ion battery is successfully prepared by uniformly compounding the manganese-doped iron-based sulfide and the nitrogen-doped reduced graphene oxide, and the manganese-doped iron-based sulfide / nitrogen-doped reduced graphene oxide composite electrode material can effectively regulate and control the electronic state density, reduce the sodium ion migration energy barrier and promote the electron / ion transmission; meanwhile, continuous growth of iron-based sulfide particles is limited, so that the iron-based sulfide particles are uniformly dispersed on the surface of the graphene, more active sites are exposed, the electrochemical reaction activity is improved, and the structural stability is enhanced. The composite electrode material disclosed by the invention can be widely applied to a negative plate for a sodium-ion battery, and has excellent adaptability and application prospect in a wide temperature range and under a high-current working condition.

The invention provides a heterostructure salinity difference energy conversion film based on HOF / two-dimensional mesoporous carbon as well as a preparation method and application of the heterostructure salinity difference energy conversion film. The salinity difference energy conversion film comprises a two-dimensional mesoporous carbon layer serving as a hydrophobic layer and a hydrogen bond organic framework layer which covers one surface of the hydrophobic layer and serves as a hydrophilic layer, wherein the two-dimensional mesoporous carbon layer is formed by compounding a two-dimensional mesoporous carbon material with regular nanopores and aramid nanofibers; the hydrogen bond organic framework layer is formed by compounding a hydrogen bond organic framework material and aramid nanofibers; the heterogeneous Janus structure salinity gradient energy conversion membrane is constructed by adopting a hydrogen bond organic framework and a two-dimensional mesoporous carbon material, and when the heterogeneous Janus structure salinity gradient energy conversion membrane is applied to salinity gradient energy conversion, high ion selectivity, high structural stability and high ion migration flux can be considered.

The invention relates to a memristor and a preparation method thereof. The preparation method comprises the following steps: providing an insulating substrate with a bottom electrode formed on the surface; depositing an aluminum oxide thin film on the bottom electrode by adopting electron beam evaporation under a room temperature condition to form a resistive function layer, and not performing high-temperature annealing treatment after deposition is completed, so that a primary oxygen vacancy defect is reserved in the thin film; and then depositing a top electrode on the resistive function layer through thermal evaporation or electron beam evaporation to obtain the memristor. The resistive function layer is an aluminum oxide film which is not densified through annealing, and internal defects of the resistive function layer provide a channel for metal ion migration, so that the reversible resistive characteristic is achieved. The memristor device is simple in structure and suitable for normal-temperature process preparation, the stable resistance switching behavior can be achieved, excessive densification of a film layer and thermal damage of an ITO electrode interface caused by high-temperature annealing are avoided, and the memristor has high cycle durability and nonvolatile data retention capacity and has the stable bipolar resistance change characteristic.

The invention provides a diaphragm, a battery and an electric device, and aims to solve the technical problem that ion transmission on the diaphragm is easily blocked. The separator comprises: a base film; the metal organic framework layer is arranged on the base film, and the metal organic framework layer comprises a metal organic framework compound modified with dissociable groups. The metal-organic framework layer is further compounded on the basis of the base membrane, the metal-organic framework layer contains the metal-organic framework compound, and the metal-organic framework compound is a porous material and has the characteristics of high specific surface area and high porosity, so that the diaphragm is favorably infiltrated by electrolyte, and further, the performance of the diaphragm is improved. The metal organic framework compound is modified with the dissociable group, the dissociable group is easy to repel anions in the electrolyte, meanwhile, ion migration in the electrolyte is promoted through the ion-dipole effect, and the problem that ion transmission in the diaphragm is easy to block is solved, so that the internal resistance of the battery can be reduced, the cycle life of the battery is prolonged, and the rate capability of the battery is improved.

The invention relates to a preparation method of a gel polymer electrolyte and the gel polymer electrolyte, and the method comprises the following steps: dissolving a polymer matrix in a fluorinated solvent, and adding a lithium salt, an initiator and an additive into the fluorinated solvent; stirring the fluorinated solvent through an ultrasonic dispersion technology to form a homogeneous precursor solution; injecting the precursor solution into a battery shell, carrying out thermal polymerization at a preset polymerization temperature for a preset polymerization time, and forming an electrolyte membrane with a three-dimensional cross-linked network structure in the battery shell; after a residual solvent in a battery shell is removed through vacuum drying, an electrolyte membrane with a three-dimensional cross-linked network structure is used as a flexible self-supporting gel polymer electrolyte. The gel polymer electrolyte is an electrolyte membrane with a three-dimensional cross-linked network structure, can inhibit the growth of lithium dendrites and improve the ion migration efficiency, is superior to the existing electrolyte in ionic conductivity and Li < + > transference number, and is suitable for high-energy-density energy storage lithium batteries.

The invention relates to a road snow melting device as well as a preparation method and application thereof. The road snow melting device comprises a stable base layer and a thermal resistor, the stable base layer comprises an energy storage body, and the energy storage body can play a structure supporting role; the energy storage body is connected with external electric energy and the thermal resistor through wires. The preparation method of the energy storage body comprises the following steps: preparing cement-based printing slurry; filling the cement-based printing slurry into a 3D printing device, and stacking layer by layer to form a printing body; curing, maintaining, trimming and drying the printing body, and immersing the printing body into a soluble alkali / salt solution to obtain a cement-based electrolyte; a soluble alkali / salt solution is dropwise added to the surface of the electrode, then the electrode and the cement-based electrolyte are stacked and assembled, and an assembly is obtained; sealing and packaging the assembly body to obtain an energy storage body; a printing interlayer interface of the cement-based electrolyte has a directionally arranged pore structure, the pore diameter is 0.5-20 microns, and the porosity is 10-50%; and the hole orientation of the hole structure is consistent with the ion migration direction between the electrodes.

The invention relates to the technical field of electrochemical energy storage materials, and discloses a gel polyelectrolyte, a preparation method and application and an aqueous zinc metal battery. The electrolyte is of a micron-sized micropore three-dimensional internet porous structure, and the three-dimensional internet porous structure is formed by copolymerization of polymer monomers; the polymer monomers are acrylamide and zinc 2-acrylamide-2-methylpropanesulfonate, the acrylamide provides a hydrophilic amide group, the hydrophilic amide group and a sulfonate group in the zinc 2-acrylamide-2-methylpropanesulfonate form a dynamic hydrogen bond network, the sulfonate group is covalently anchored to a polymer main chain, and the polymer main chain is covalently anchored to form a dynamic hydrogen bond network. And a main carrier Zn < + > is coordinated with-O-and-N-atoms on a polymer chain. According to the invention, salt-free single ion conduction is realized, concentration polarization is inhibited by sulfonate covalent anchoring, a dynamic hydrogen bond network provides excellent water-retaining property, the problem of moisture evaporation of traditional gel is solved, the interface stability is enhanced by coordination of Zn < + > and a polymer chain, the dendritic crystal inhibition effect is remarkable, and the ion transference number is far greater than that of traditional double-ion electrolyte.

The invention provides a method for recovering nitrogen and phosphorus in wastewater through self-driven bipolar membrane electrodialysis. A system used in the method takes a magnesium negative electrode as a positive electrode and an air electrode as a positive electrode, and a self-driven primary battery is formed through wire connection; and ion exchange membranes with specific sequences are sequentially arranged between the two electrodes to form eight chambers, namely an anode chamber, a nitrogen and phosphorus recovery chamber, a wastewater chamber, a metal ion chamber, an ammonia water chamber, a hydrochloric acid chamber, a buffer chamber and a cathode chamber. During operation, an external power supply is not needed, and ion migration is driven by a self-generated electric field: after Mg < 2 + > and PO4 < 3-> are enriched in the nitrogen and phosphorus recovery chamber and NH4 < + > and Ca < 2 + > migrate to the metal ion chamber, NH4 < + > enters the ammonia water chamber through the monovalent cation exchange membrane, and Ca < 2 + > is separated out and reacts with OH <-> generated by the bipolar membrane to generate Ca (OH) 2 precipitate, so that membrane blockage is effectively prevented, and finally, NH4 < + >, Mg < 2 + > and PO4 < 3-> react to generate high-purity struvite. Zero energy consumption of nitrogen and phosphorus recovery of the wastewater is achieved, no additional chemicals exist, anti-blocking operation is achieved, and both environmental benefits and resource benefits are achieved.

The invention relates to a solid electrolyte membrane and a preparation method thereof, and belongs to the technical field of lithium battery solid electrolyte. According to the invention, after the selected acrylate monomer as shown in the formula I is polymerized, the crystallinity of the fluorine-containing polymer is reduced, more space is provided for ion conduction, the dissociation effect of the lithium salt is enhanced, and the free ion concentration is increased; the precipitation-method white carbon black limits anion movement through abundant hydroxyl groups, so that the lithium ion transference number is increased; under the combined action of the three factors, the ionic conductivity of the solid electrolyte membrane is greatly improved. The fluorine-containing polymer has good toughness and self-supporting effect and wide electrochemical window and thermal stability, so that the application range of the solid electrolyte and the energy density, rate capability and service life of a battery using the electrolyte are improved on the whole.

The invention discloses a blue-light perovskite light-emitting diode based on a hydrogen bond network and a preparation method thereof, 3-(5-fluoropyridine-2-yl) acrylic acid hydrochloride molecules are added into a perovskite precursor solution, non-radiative recombination is reduced by passivating defects, and the molecules cooperate with ligands and octahedrons to construct the hydrogen bond network in the crystallization process, so that the blue-light perovskite light-emitting diode based on the hydrogen bond network is obtained. The stability of the octahedral framework is enhanced, ion migration is effectively inhibited, the high-efficiency and high-stability blue-light PeLED is finally obtained, and the external quantum efficiency and the operation stability of the blue-light PeLED are remarkably improved.

The invention relates to the technical field of perovskite solar cell functional thin film packaging, in particular to a solar cell with a perovskite active layer packaged by a double-sided thin film and a preparation method of the solar cell. Al2O3 is used for depositing a layer of Al2O3 thin film between the perovskite active layer and a P-type carrier transport layer (hole transport layer HTL); a layer of SiO2 thin film is deposited between a perovskite active layer and an N-type carrier transport layer (electron transport layer ETL), and a double-sided thin film wrapping layer is formed by an Al2O3 thin film and the SiO2 thin film; through the design and preparation method of the Al2O3 / SiO2 double-sided thin film packaging perovskite active layer, the core stability problem of the perovskite active layer is effectively solved. The double-sided packaging structure can efficiently block water and oxygen permeation, and the perovskite is prevented from being decomposed due to water and oxygen erosion; meanwhile, diffusion of metal electrode ions to a perovskite layer and migration of halogen ions in perovskite to the electrode can be inhibited, bidirectional damage is reduced, and the sensitivity of perovskite to water and oxygen and performance degradation caused by interface ion migration are relieved fundamentally.

The invention discloses a magnetic field auxiliary dry type electrochemical polishing device and method for the inner surface of a pipeline, and the device comprises a base which is provided with a double-sliding-block displacement table, and the double-sliding-block displacement table is provided with a lower sliding block and an upper sliding block; a motor clamp is arranged on the upper sliding block, a motor is arranged on the motor clamp, the motor is connected with an electrode clamp, and the electrode clamp clamps an electrode; a workpiece clamp is arranged on the lower sliding block, a workpiece is arranged on the workpiece clamp, a lower container is arranged below the workpiece, an annular magnet is arranged outside the workpiece in a surrounding mode, and an inner space formed by the workpiece and the lower container is filled with a solid medium. The electrode clamp is connected with the rotating end of the conductive slip ring, and the static end of the conductive slip ring is connected with the anode of the power supply through a wire. The magnetic field assists in regulating and controlling ion migration, dry type electrochemical polishing is achieved by combining the synergistic effect of the two electrodes, liquid electrolyte pollution is avoided, and the device has the advantages of being high in polishing uniformity, convenient and fast to operate and low in cost and is suitable for precise runner inner surface treatment of the additive manufacturing pipeline.

The invention relates to the technical field of medicine packaging materials, and discloses a preparation technology of a high-barrier-property composite film for medicine. Comprising the steps of preparation of a degradable base material, coating of a bio-based pressure-sensitive adhesive, distribution of a gradient inhibitor, interface ion exchange activation, construction of an ion immobilization network, temperature and humidity gradient control curing, formation of a phase interface dehydration protection layer and the like. Through a dual action mechanism of pressure-sensitive adhesion and ion exchange and a synergistic effect of biological activity inhibition and ion migration blocking, efficient compounding of a degradable base material and an inorganic barrier layer is realized, and the technical problems of both environmental protection property and high barrier property, attenuation of interface bonding stability and long-term use performance and the like are solved.

The invention provides a sodium ion specific fluorescence labeled transparent soil sample as well as a preparation method and application thereof, and belongs to the technical field of rock soil and geological engineering. The method comprises the following steps: firstly, sequentially carrying out hydrophilization treatment, solvent evaporation and dissolution on a sodion combined benzofuran isophthalate probe to obtain a probe mother solution; mixing the probe mother solution, a buffer solution, an inorganic sodium salt solution and a solvent to prepare a fluorescence labeling pore solution; and finally, mixing the sodium polyacrylate particles and the fluorescence labeled pore liquid, and performing vacuum saturation treatment to obtain the transparent soil sample. The transparent soil sample provided by the invention still keeps excellent optical transparency while having sodium ion specific response capability, so that a stable and reliable experimental medium is provided for in-situ, real-time and full-field observation of sodium ion migration.

The invention relates to the technical field of solar cells, in particular to an interface regulation and control method for inhibiting electrode failure of a perovskite device, which comprises the following steps: (1) cleaning a transparent conductive layer with P1 laser scribing to obtain a clean transparent conductive substrate; sequentially preparing a first carrier transport layer, a perovskite layer and a second carrier transport layer on the transparent conductive substrate from bottom to top, and then performing P2 laser scribing; (2) preparing an interface buffer layer on the second carrier transport layer; and (3) depositing a metal electrode on the interface buffer layer and then carrying out P3 laser scribing. According to the regulation and control method, through preparation of a core interface buffer layer and full-flow process regulation and control, an optimized nucleation interface is provided for metal electrode densification and film formation, and the electrode deposition quality is improved; meanwhile, good energy level matching of the carrier transport layer and the metal electrode is achieved, interface ion migration and diffusion are restrained, and the problems of thin film splashing and edge curling in the laser scribing process are solved.

The application provides an Al2O3 skeleton electrode sheet containing LiAlO2 / LiNbO3 double-coated layers and a sulfide solid-state lithium battery composite electrode, and belongs to the technical field of sulfide solid-state lithium batteries. + The application adopts an atomic layer deposition process to construct double-layer functional coating on the Al2O3 skeleton, wherein the inner layer LiAlO2 serves as a chemical barrier layer and can inhibit the reaction of sulfides and Al2O3, and the outer layer LiNbO3 serves as an ion conductor layer and can reduce the Li diffusion energy barrier. The application solves the problems of chemical side reactions and too high lithium ion migration energy barrier of the electrode / skeleton material and electrolyte interface by decoupling the barrier-conduction function of the LiAlO2 and LiNbO3 double-coated layers, taking the thermodynamic stable phase (LiAlO2) as an interface sacrificial layer, and utilizing the topological ion transport characteristics of the niobium-oxygen octahedral channel, so that the unity of interface chemical stability and ion conductivity is realized in sub-nanometer scale.

This disclosure provides an experimental apparatus for measuring the migration law of chloride ions in concrete under tensile load. The apparatus includes a base plate, with fixed supports on both the left and right sides of the top of the base plate. Between the two fixed supports are N transparent boxes and N+1 tensioning components. Each transparent box contains a prism-shaped concrete specimen of appropriate size. A resistance strain gauge is mounted on the top of the prism-shaped concrete specimen, and the specimen is communicatively connected to a strain gauge measuring instrument via the strain gauge. A hydraulic hollow jack is located on the left side of the top of the base plate, to the left of the fixed support on the same side. A pressure sensor is connected to the left end of the hydraulic hollow jack, and the pressure sensor is communicatively connected to a load display. A hydraulic loading pump is also connected to the hydraulic hollow jack. A spring baffle is located on the right side of the top of the base plate, to the right of the fixed support on the same side. A return spring is located between the spring baffle and the fixed support on the same side.

The invention relates to the technical field of lithium ion battery negative electrode materials, in particular to a preparation method of a high-rate silicon-carbon composite negative electrode material. The silicon-carbon composite material takes a porous carbon material as a substrate, and is compounded by depositing a silicon source into the porous carbon substrate in a chemical vapor deposition manner; according to the excellent fast charging performance, the porous carbon substrate is prepared by adopting a tin source and potassium hydroxide synergistic activation strategy, and the limitation of a traditional single alkali activation (such as KOH) or metal auxiliary activation method is broken through. Through the synergistic effect of the two, a hierarchical pore structure with micropore-mesopore gradient distribution is realized, the silicon deposition bearing capacity and ion transport dynamics performance of porous carbon are remarkably improved, and a structural basis is provided for subsequent uniform deposition of silicon and rapid migration of lithium ions.

This invention relates to the field of neutron source technology, and particularly to a controllable isotope neutron source device based on ion migration and a method for generating neutrons. The device includes a casing, inside which are a target material module, a target ion migration system, a safety module, and an alpha particle source term. The target material module provides target nuclide ions. The alpha particle source term includes alpha radioactive nuclide material and target nuclide intercalation material. The safety module is composed of target nuclide intercalation material. The target ion migration system is connected to an external control field. Target nuclide ions migrate through the target ion migration system within the safety module and the alpha particle source term. This invention enables active controllability of the isotope neutron source, significantly improving safety. By ensuring sufficient contact between alpha particles and target nuclides to form a molecular intercalation structure, the (α,n) reaction efficiency is greatly improved. Furthermore, this neutron source can be used in combination with multiple modules according to application requirements, effectively increasing the neutron output flux.

This invention relates to the field of semiconductor technology, providing a Si VDMOS device and electronic device. The Si VDMOS device includes a Si VDMOS chip, which comprises a drain electrode, a substrate, and an epitaxial layer connected sequentially from bottom to top. The epitaxial layer contains P-type and N-type doped regions. An insulating dielectric layer and several source electrodes are disposed on the side of the epitaxial layer facing away from the substrate. Several gate electrodes are disposed on the side of the insulating dielectric layer facing away from the epitaxial layer. The source electrodes and gate electrodes form an active region. A metal ring is connected to the insulating dielectric layer, surrounding the active region. The distance between the metal ring and the active region is greater than or equal to 150 μm. The metal ring is connected to a potential structure, the potential of which is equal to the potential of the drain electrode. By employing this structure, silver ion migration can be suppressed at its source.

This invention relates to the field of separation, analysis, and detection technology, specifically an apparatus and method for detecting formic acid and acetic acid in baijiu (Chinese liquor) starter and mash. The apparatus includes a rotary thermal desorption sampler, a headspace thermal desorption sampler, pulse valve I, pulse valve II, ion migration tube I, and ion migration tube II. The gas paths are as follows: one path connects to the rotary thermal desorption sampler via pulse valve I and then to ion migration tube I; the other path connects to the headspace thermal desorption sampler via pulse valve II and then to ion migration tube II. Drift gas is connected to dopant gas and then enters the ion migration tube. After sample treatment with methanol, samples for acetic acid detection are injected via the rotary thermal desorption sampler, and samples for lactic acid detection are injected via the headspace thermal desorption sampler. This invention allows for the separate separation and analysis of lactic acid and acetic acid components, reducing the mutual interference of simultaneous detections. Samples only require methanol extraction for analysis, saving four times the time.

The application discloses a container explosive non-opening box intelligent checking device based on ion mobility spectrometry, which comprises a connecting outer frame, a hydraulic cylinder is internally installed in the connecting outer frame, a hydraulic pump is connected to one end of the hydraulic cylinder, and a first piston is movably connected in the hydraulic cylinder. The ion mobility spectrometer and a separately designed collecting device are integrated into one equipment, a user carries the equipment by means of shoulder carrying, and a handle is equipped to facilitate holding. The air suction pipe is placed at the ventilation position of the container, the threaded rod and the first piston are driven to move transversely by hydraulic oil, the sample is pushed to the ion mobility spectrometer for analysis and detection, before the next sample test, the threaded rod is driven by the hydraulic oil to drive the polishing blade to rotate in the air suction pipe, the internal powder is scraped, the transverse thrust generated by the piston ring can extrude the gas in the air suction pipe, and thus the whole cleaning process is completed, the residues after each detection are greatly reduced, and the accuracy of the next extraction detection is avoided.

This invention relates to a perovskite solar cell doped with a disulfonic acid-based functionalized ionic liquid and its preparation method. By doping a perovskite precursor solution with a disulfonic acid-based functionalized ionic liquid, this invention effectively controls the crystallization process of perovskite, reduces lead iodide residue, and prepares a perovskite film with better crystallinity, larger and more uniform grain size, and a smoother surface, thereby improving the stability of the perovskite film. Furthermore, the presence of disulfonic acid groups in the ionic liquid anchors uncoordinated Pb ions, inhibits ion migration, and passivates defect states in the perovskite material, significantly improving the quality of the perovskite film and thus enhancing the photoelectric conversion efficiency and long-term stability of the solar cell. Simultaneously, after perovskite film formation, the ionic liquid is mainly distributed at the upper and lower interfaces, achieving synergistic passivation of the two interfaces of the perovskite film, further improving the photoelectric conversion efficiency and long-term stability of the solar cell.

This invention discloses a method for preparing a zinc-based solid electrolyte membrane based on a polycarbonate-based ionic liquid. In the presence of a catalyst, carbon dioxide and epichlorohydrin are alternately copolymerized at 25-70°C and 2.0-4.0 MPa carbon dioxide to obtain a polycarbonate with chloromethyl side groups, which is then purified by dissolution / precipitation. A side group substitution reaction is carried out by adding 1-methylimidazolium to a polar solvent to obtain an imidazolium halide-type ionized polycarbonate. Subsequently, a zinc-free solution is used... 2+ The zinc-based solid polymer electrolyte membrane was obtained by anion exchange with TFSI-salt followed by desalting and purification. The ionic liquid was then mixed with zinc salt, and a membrane was fabricated using a casting method, followed by drying and peeling to obtain the membrane. The large volume and high degree of charge delocalization of anions in the ionic liquid are beneficial for reducing ion-pair interactions, providing a better ion transport environment for the zinc-based solid electrolyte membrane and addressing the issue of Zn content in existing zinc-based solid electrolytes. 2+ It has strong interactions with anions and polymer polar groups, which can easily lead to increased resistance to ion migration.