233 results about "Solvent evaporation" patented technology

The invention discloses a preparation method and application of a perovskite layer of a perovskite solar cell, and relates to the technical field of perovskite cells. The preparation method comprises the following steps: dissolving a perovskite material in an organic solvent to prepare a precursor solution; and performing slit coating on a substrate by using the precursor solution, and obtaining the perovskite layer after annealing, wherein the annealing atmosphere comprises organic salt steam and nitrogen. According to the preparation method disclosed by the invention, the defects of uneven film thickness, disordered solvent volatilization and many film surface cracks when the perovskite layer is prepared by slit coating are overcome through a special annealing process, the problem that the slit coating technology and the annealing process are incompatible in the traditional technology is solved, large-scale preparation of high-quality and low-defect film layers is realized, and the preparation method is suitable for industrial production. The method is suitable for large-scale production of efficient and stable perovskite solar cells.

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 application provides an In-MOF crystal material and a preparation method and application thereof, and the molecular formula of the In-MOF crystal material is [In(phen)(BDC) 1.5 ]·H2O, wherein phen is 1,10-phenanthroline, and BDC is terephthalic acid ligand; the crystal belongs to a monoclinic crystal system P2 1 / n with a space group, and the cell parameters are alpha=90°, beta=97.774(2)°, gamma=90°, a=12.3359(3)Å, b=14.1993(4)Å, c=15.4995(4)Å, the cell volume is 2689.96(12)Å 3 , and Z=4. The application synthesizes an In-MOF crystal material by using a simple room temperature solvent evaporation method, and the In-MOF crystal material can be used as a catalyst for electrocatalytic carbon dioxide reduction, and realizes efficient carbon dioxide reduction to form formic acid.

This invention provides an organic ferroelectric eutectic material, its preparation method, and its applications, relating to the field of ferroelectric materials technology. The organic ferroelectric eutectic material constructs a crystal system with "rigid constraint and flexible adaptation coexisting, dipole order and controllable polarization synchronously" through "molecular selection-supramolecular assembly-crystal structure regulation," achieving a synergistic effect of high Curie temperature, strong polarization characteristics, and excellent flexibility. The preparation method of the organic ferroelectric eutectic material utilizes a simplified "solvent dissolution-solvent evaporation" process, leveraging the mediating effect of the solvent to promote the supramolecular self-assembly of donor and acceptor molecules. This achieves the preparation of an organic ferroelectric eutectic material possessing both high Curie temperature, strong polarization characteristics, and excellent flexibility. The preparation method has multiple advantages, including "stable process, low cost, and suitability for large-area processing," making it a simple, efficient, and universally applicable preparation method suitable for large-scale industrial production.

The application discloses a preparation method of a Zr-based metal-organic framework-based mixed matrix membrane, and relates to the field of gas separation membranes.The mixed matrix membrane is prepared by taking a defect-exchanged Zr-based metal-organic framework material as a filler and polyimide 6FDA-DAM as a polymer matrix.The application overcomes the defects of the prior art, and o-TBA-U iO is prepared by dispersing a defect state U iO-66 in an N,N-dimethylformamide solution of o-TBA (o-Tri-fluoromethyl benzoic acid) and then performing a heating reaction, followed by centrifugation, washing and drying in sequence.Then, the o-TBA-U iO is mixed with 6FDA-DAM in a chloroform solution, and a mixed matrix membrane is prepared by a solvent evaporation method.The application has the advantages and benefits that the MOF-based mixed matrix gas separation membrane has good C3H6 permeability and ultrahigh C3H6 / C3H8 ideal selectivity, and the main reason is that the introduction of o-Tri-fluoromethyl benzoic acid enhances the molecular sieving ability of the membrane for C3H6 / C3H8 and the preferential diffusion rate of C3H6.

The application discloses a SERS detection structure for realizing rapid enrichment of detected molecules and a preparation method thereof, and relates to the technical field of molecule detection. The SERS detection structure for realizing rapid enrichment of detected molecules comprises a super-hydrophobic SERS unit and a heating resistor unit which are connected with each other. The heating resistor unit is used for heating the super-hydrophobic SERS unit to realize rapid enrichment of detected molecules. When the detected molecules are dropped on the surface of the super-hydrophobic SERS unit, the SERS detection structure can make the detected molecules be distributed in the form of droplets on the surface of the super-hydrophobic SERS unit. After the solvent is evaporated, the enrichment of the detected molecules can be realized, the detection uniformity is improved, and the detection limit is improved. In combination with the heating effect of the heating resistor unit, the evaporation speed of the droplets can be accelerated, the rapid enrichment of the detected molecules is realized, and the problem of low detection efficiency caused by too long evaporation time of the droplets is avoided. In addition, the detection structure is simple to prepare, does not need to depend on complex preparation steps, and the cost is reduced.

This invention relates to a method for ultra-high sensitivity and specific naked-eye detection of trace aromatic compounds. The method utilizes the long afterglow induced by the specific interaction between the analyte and a matrix as the output signal to achieve naked-eye detection of the analyte. The aromatic compounds are aromatic pollutants and aromatic organic metabolites. This invention utilizes the organic long afterglow induced by mixing the analyte G with the host molecule H through methods such as heating and melting, solvent evaporation and crystallization, matrix adsorption, and paper chromatography as a monitoring signal to achieve ultra-high sensitivity and specific naked-eye detection of trace aromatic compounds. The afterglow induced by the analyte G is highly dependent on the type and content of the analyte and matrix, which gives this detection method extremely high sensitivity and selectivity. The method is simple to operate, rapid, visible to the naked eye, requires inexpensive and readily available materials, and provides stable results.

The present application provides a kind of porous poly-L-lactic acid microspheres, and its preparation method and injection preparation comprising porous poly-L-lactic acid microspheres, the porous poly-L-lactic acid microspheres are prepared by emulsification-solvent evaporation method from first component, second component and optional auxiliary component, wherein the first component is poly-L-lactic acid, the second component is sodium carboxymethyl cellulose, the content of the first component is 98%-99.9% of the total mass of the first component and the second component, the content of the second component is 0.1%-2% of the total mass of the first component and the second component, and the porous poly-L-lactic acid microspheres have topological morphology.

The application discloses a high-flux strong-hydrophobic composite membrane and a preparation method thereof, and belongs to the field of membrane separation and technology.The method comprises the following steps: formulating a casting solution and a preparation method, wherein the casting solution comprises a binder and a certain graphite-based carbon material; the casting solution is prepared into a film through a vacuum-assisted solvent evaporation method; and the volatilization of a solvent in the binder and the adhesion between the binder and the graphite-based carbon material are promoted at 50-100 DEG C, so that a high-flux strong-hydrophobic microporous composite membrane is obtained.The method is simple, fast and green, and lays a foundation for industrial application of the high-flux strong-hydrophobic microporous composite membrane.

The application discloses a preparation method of isophorone diisocyanate microcapsules for oil well cement self-repairing, and relates to the technical field of external aid type self-repairing materials.The isophorone diisocyanate microcapsules are prepared by using isophorone diisocyanate as core material, using oligomers and crosslinking monomers as shell material raw materials, adopting a solvent evaporation-ultraviolet light synergistic polymerization process, and through low-temperature ultrasonic dispersion, cold water bath premixing and ultraviolet light polymerization under nitrogen protection.The isophorone diisocyanate microcapsules have high yield, high coating rate and dense shell.The method is simple, fast and environmentally friendly, and the prepared isophorone diisocyanate microcapsules have excellent thermal stability, substrate adaptability and self-repairing characteristics, and can realize the rapid self-repairing of oil well cement cracks in a high-temperature, high-pressure and humid environment.

This invention relates to a tetrafluoroborate imidazole-based metal ionic liquid, its preparation method, and its application in coating aluminum powder. The invention pertains to the preparation method of a tetrafluoroborate imidazole-based metal ionic liquid and its use in combination with aluminum powder to form a core-shell fuel (aluminum powder@metal ionic liquid). The aluminum powder@metal ionic liquid core-shell fuel uses aluminum as the core and a tetrafluoroborate imidazole-based metal ionic liquid as the shell material, prepared via solvent evaporation. This series of core-shell fuels exhibits excellent thermal properties and is primarily suitable for solid propellant fuel applications. Furthermore, the preparation method provided by this invention is simple, operates under mild conditions, and uses readily available raw materials.

The invention discloses difunctional nano drug-loaded eye drops for xerophthalmia and a preparation method of the difunctional nano drug-loaded eye drops, and belongs to the field of pharmaceutical preparation technologies and ophthalmology pharmacy. The core of the invention is to construct a composite nanoparticle which has a core-shell structure and has long-acting adhesion lubrication and targeted control drug release functions. The preparation method comprises the following steps: firstly, encapsulating a hydrophobic immunosuppressant such as cyclosporine A in a biodegradable pad polymer matrix such as polylactic acid-glycolic acid copolymer (PLGA) by an emulsification-solvent evaporation method to form a drug-loaded polymer nano core; through the exquisite integrated design of the structure and the function, collaborative targeted therapy of two core pathological links of'tear film instability 'and'immune inflammation' of xerophthalmia is achieved, the bioavailability of the medicine is remarkably improved, the medication frequency and eye irritation are reduced, and the curative effect of xerophthalmia is improved. A more efficient and safer administration scheme with better patient compliance is provided for clinical treatment of xerophthalmia.

The invention discloses a preparation method and photocatalytic application of a metal viologen derivative framework for catalyzing C-H bond activation oxidative coupling, and belongs to the technical field of photocatalytic materials. In the preparation method, Zn < 2 + > is selected as a metal node, a viologen derivative with an excellent oxygen activation function is selected as a ligand, and a metal viologen derivative framework Zn-bcbpy is obtained through coordination by a solvent evaporation method. The viologen derivative can effectively activate molecular oxygen to generate superoxide free radicals, and then selective activation of C-H bonds is achieved through a hydrogen atom transfer mechanism. Through optimization of reaction conditions, under irradiation of blue light, the reaction yield of the Zn-bcbpy catalytic substrate is 55%, the Zn-bcbpy catalytic substrate can be stably recycled for five times, and good photocatalytic response performance of the catalyst is proved through electrochemical and impedance experiments.

The application provides a lithium phosphate-lanthanum phosphate composite coated lithium-rich manganese-based positive electrode material, and a method of adopting an ethanol-water mixed solvent evaporation drying combined with low-temperature sintering to uniformly construct a composite coating layer composed of ion conduction type lithium phosphate and inert stable type lanthanum phosphate on the surface of the lithium-rich manganese-based positive electrode material. The complementary function and the synergistic distribution in space of the lithium phosphate and the lanthanum phosphate together realize the comprehensive modification effect of "no reduction of ion transmission and effective inhibition of side reaction", effectively solve the key technical problems of low first coulomb efficiency, serious voltage attenuation in the cycle process and transition metal dissolution of the lithium-rich manganese-based positive electrode material, and meet the pursuit of people on the comprehensive performance of the high-energy-density lithium ion battery positive electrode material.

The invention provides a medical beauty-grade sensitive skin repair dressing with a gamma-polyglutamic acid controlled release function, and belongs to the technical field of biomedical materials. The repair dressing is composed of controlled release microspheres dispersed in a matrix material, the controlled release microspheres take modified gamma-polyglutamic acid as an active core material and a biocompatible high polymer material as a wall material, and the matrix material comprises a medical grade gel matrix, a moisturizing component and an anti-inflammatory soothing component. The gamma-polyglutamic acid is subjected to acylation or graft modification to improve the stability and biocompatibility of the gamma-polyglutamic acid, and 12-72h gradient release of the gamma-polyglutamic acid is realized by virtue of the controlled release microspheres prepared by virtue of an emulsification-crosslinking method or a solvent evaporation method; meanwhile, through the synergistic matching of the matrix components, the dressing is endowed with the moisturizing, anti-inflammatory and soothing effects. The dressing can effectively reduce wound inflammatory response after medical art, promote epidermal cell proliferation and improve the water content and barrier function of a sensitive skin cuticle, and is suitable for scenes of wound repair after medical art, sensitive skin barrier reconstruction and the like.

The application discloses a kind of hierarchical carbon source microspheres for denitrification filter and preparation method thereof, it is related to water treatment field, the preparation method includes the following steps: preparation includes biodegradable polymer, nanofiber and mesoporous template agent precursor solution, and pre-crosslinking is carried out, and resin matrix is obtained;Resin matrix is sprayed into high-temperature inert atmosphere by atomization, and the microsphere precursor a with macroporous structure is formed by solvent evaporation and reaction induced phase separation;Microsphere precursor a is placed in steam environment, and inorganic silicon source precursor is condensed on macroporous structure and in-situ sol-gel reaction occurs, forming a reinforcing layer, to obtain microsphere precursor b;Microsphere precursor b is sequentially subjected to CO2 extraction and post-processing, and the whole microsphere precursor b forms mesoporous and microporous, to obtain hierarchical carbon source microspheres.The application effectively solves the problems of unstable control of carbon source release rate and limited microbial deep colonization by constructing hierarchical pore structure with macroporous, mesoporous and microporous.

The invention provides a carbon molecular sieve gas separation membrane prepared based on Joule heating and a preparation method and application thereof. According to the preparation method, 6FDA-DAM polyimide is used as a precursor material, an aprotic polar solvent is used as a solvent, a compact precursor film is prepared through a solvent evaporation method, and carbonization treatment is carried out in a vacuum environment in a Joule heating mode. By controlling the carbonization duration, the microporous structure in the membrane, the formation of an ordered carbon skeleton and the removal degree of functional groups can be adjusted, the conversion from surface diffusion to a molecular sieve screening mechanism is realized, and the gas separation capacity is remarkably improved.

The application discloses a method for preparing epichlorohydrin, which comprises the following steps: reacting a mixture containing chloropropene, hydrogen peroxide, polyhydric alcohol, a catalyst and an ionic surfactant in a batch kettle reactor to obtain a product containing epichlorohydrin. Compared with the traditional method, the reaction has less by-products, the product after the reaction of hydrogen peroxide is water, the addition of the ionic surfactant and the polyhydric alcohol promotes the mixing of the organic phase and the aqueous phase into a homogeneous phase, improves the selectivity, a large amount of solvent does not need to be added, solvent evaporation and recovery processes are avoided, the process is energy-saving and environment-friendly, the equipment process is simple, the yield and the selectivity are high, the method is suitable for large-scale production in industry, has great economic benefits, solvent evaporation and recovery are not needed, is beneficial to the production amplification in industry, the equipment maintenance cost is low, the system cost is relatively low, the environmental pollution is small, the operation is simple, the method is easy to repeat, and epichlorohydrin can be efficiently produced.

The application discloses a preparation method of graphene nanocavitation microspheres, and comprises the following steps: phase change microcapsule preparation: dissolving paraffin and an emulsifier in an aqueous solvent, stirring under constant temperature and rotating speed for a certain time to form a stable oil-in-water emulsion, and the precipitate after centrifugation at room temperature is the paraffin microcapsule; graphene aqueous suspension preparation: dispersing graphene in a tetrahydrofuran solution and mixing with degassed water, removing the tetrahydrofuran by solvent evaporation after reaction for a certain time at a certain temperature; graphene nanocavitation microsphere preparation: mixing the paraffin microcapsule and the graphene solution, performing suction filtration after sufficient stirring, so that the graphene nanosheet is wrapped on the surface of the paraffin microcapsule, and finally drying at 60 DEG C; the paraffin capsule is removed by being heated and melted as a sacrifice layer; the graphene nanocavitation microsphere has the characteristics of high adsorption capacity and wide spectrum while having a fast adsorption rate for various metal ions and soluble organic matters.

The invention relates to a preparation method of a highly ordered, soft and malleable MXene-based organic-inorganic hybrid superlattice material, which comprises the following steps: carrying out surface modification on hydrochloric acid acidified Ti3C2Tx nanosheet aqueous dispersion by using oleylamine, washing the product with ethanol, drying, and dispersing in trichloromethane; and adding small molecular ligands such as oleic acid into the dispersion liquid, and then carrying out solvent evaporation assembly to obtain the superlattice material with a long-range ordered layered structure. The film shows intrinsic flexibility and can be directly formed into a macroscopic three-dimensional block through physical folding and mold pressing. The mechanical property of the MXene material is fundamentally regulated and controlled through molecular intercalation and ordered assembly, integrated construction from a nanoscale ordered structure to a macroscopic functional material is achieved, and the obtained MXene-based organic-inorganic hybrid superlattice material has electrical conductivity, structural orderliness and good deformability; the method has important application prospects in the fields of flexible electronic devices, deformable electrodes, intelligent sensing and the like.

The application discloses a method for realizing high-efficiency extraction of plant raw materials by online adjustment of solvent proportion, and belongs to the technical field of production process control. A solvent recovery unit carries out online detection on the proportion of the recovered solvent after evaporation and condensation of the recovered solvent, and delivers the recovered solvent to a solvent preparation unit. The solvent preparation unit calculates the amount of new solvent to be added according to the detection result, controls the delivery of the new solvent from the solvent tank of the solvent preparation unit to the solvent preparation tank through a control unit, and mixes the new solvent. The prepared solvent is detected again to confirm the proportion, and then enters an extraction unit. The proportion of the solvent is detected in the middle section of the extraction unit, and new solvent is added from the solvent tank to the extraction unit according to the process requirement. A material cake detection unit detects the material cake of the extraction unit. The proportion of the extraction solvent is dynamically adjusted according to the residual situation of the effective components in the material cake, and then the control unit is used to adjust the proportion of the solvent through the solvent preparation unit. The above steps are repeated in continuous production.

A method for inducing the ordered arrangement of ZnS nanospheres includes the following steps: S1, Preparation of ZnS nanospheres: ZnS nanospheres of 60-120 nm are prepared using a hydrothermal method. After multiple washings and centrifugation, pure ZnS nanospheres are obtained. S2, Preparation of a ZnS mixed solution: The ZnS nanospheres prepared in step S1 are dispersed in a mixed solution of water, ethanol, and a surfactant, and the solution is ultrasonically vibrated to obtain a ZnS mixed solution. S3, Dropping the film: The heating platform is heated to 30-60°C and maintained at a constant temperature. A pipette is used to draw 50-200 μL of the ZnS mixed solution from step S2 and drop it onto a clean silicon wafer. After the solvent evaporates, the sample is removed to obtain an ordered pattern. This invention provides a simple and widely applicable method for inducing the ordered arrangement of nanospheres.

The utility model relates to PCB board processing technical field discloses a kind of PCB soft board processing heat curing equipment, including the processing box for the storage of PCB soft board, the lower end of the processing box is fixedly connected with the support frame for supporting processing box, hot air component for drying and curing to PCB soft board is installed in the processing box, and placing assembly for fixing PCB soft board is installed between the hot air component. The utility model realizes two-way heating by the hot air disc of symmetry up and down, makes PCB soft board double side synchronous heating, forms uniform temperature field, effectively prevents one-sided heating deformation, improves solvent evaporation and resin curing efficiency, and adopts knob type clamping mechanism cooperation rotation design, so that board material rotates at uniform speed in curing process, realizes three-dimensional heating, eliminates local overheating phenomenon, and heating uniformity deviation is lower, prevents material thermal deformation.

The invention discloses a hole transport layer and a preparation method thereof, a perovskite solar cell and an electric device, and belongs to the technical field of solar cells. The first solvent with the boiling point being 200-300 DEG C and the alcohol solvent with the boiling point being 55-85 DEG C are adopted as the composite solvent of the hole transport layer precursor solution to adjust the solvent evaporation rate and the SAM film layer state, the electric field with the specific direction and intensity is applied to promote SAM molecules to be directionally arranged, and the orientation of the SAM molecules can be adjusted and controlled from top to bottom; the continuity and uniformity of the hole transport layer are improved, the coverage rate of SAM molecules on the substrate is effectively improved, the photoelectric conversion efficiency of the device is improved, and the consistency of large-area assembly preparation is favorably realized.

This invention relates to the field of polymer material additives, and discloses an environmentally friendly calcium-zinc composite PVC heat stabilizer and its preparation method. The heat stabilizer is a multi-level core-shell structure particle composed of three parts: (a) a functionalized hydrotalcite core intercalated with β-diketone and polyol; (b) a calcium / zinc metal soap inner shell chemically bonded to the core surface via a silane coupling agent; and (c) a lanthanum-organic complex outer shell coating the outermost layer containing unsaturated double bonds. The preparation method includes: preparing the functionalized core, grafting a silane coupling agent, in-situ co-precipitation to generate the inner shell, and solvent evaporation to coat the outer shell. This invention ensures the integrity of the composite particle structure and the synergistic effect of each component by constructing a stable chemical connection between the core and shell. Through intercalation and final chemical grafting, the migration and precipitation problems of the additives are fundamentally solved.

The application discloses a metal halide perovskite single crystal with high PLQY and a preparation method thereof, and comprises the following steps: mixing SbX3 and diphenyl guanidine hydrohalide to obtain a solute; the molar ratio of SbX3 and diphenyl guanidine hydrohalide is 1:2-5; the solute is added into a transparent glass bottle, and an organic solvent is added into the transparent glass bottle and stirred until the solute is completely dissolved to form a solution; the solution is obtained by a slow solvent evaporation method or a cooling crystallization method operation; and the metal halide perovskite single crystal is obtained. The application proposes that the diphenyl guanidine is used as a cation to form a zero-dimensional non-lead metal halide perovskite, and since the dimension of the obtained halide perovskite structure is zero, compared with one-dimensional, two-dimensional and three-dimensional, the vibration freedom degree can be improved, which is beneficial to obtain a more efficient and lower-dimensional material and is beneficial to the formation of a self-trapped exciton (STE).

The application provides an adsorption-induced transmission type hydraulic lime suspension and a preparation method thereof, and belongs to the technical field of building materials. The application uses the knowledge of suspension particle dynamics, selects spherical micro-nano pozzolanic materials as the hydraulic component to promote the kinetic stability of the hydraulic lime suspension and the permeability of the hydraulic lime suspension in the earthen site. However, the specific surface area of the regular spherical particles is relatively small, the adsorption in the earthen site is small, and the regular spherical particles are prone to return migration to the surface of the earthen site to form whitening as the solvent evaporates. The application uses the alkali activation and hydrothermal synthesis method to load the silicon / aluminum gel and zeolite with super-large specific surface area on the surface of the pozzolanic material, plays an adsorption-induced transmission role, realizes the deep penetration of the hydraulic lime suspension in the earthen site, and avoids the return migration phenomenon.

The application discloses a Li2C2O4-coated FeTiO3 anode material and a preparation method and application thereof, and the preparation method comprises the following steps: step 1, FeTiO3 powder is prepared; step 2, Li2C2O4 powder is dissolved in a mixed solvent composed of deionized water and anhydrous ethanol in a volume ratio of (6-8):3, and then the solution is placed in a water bath and stirred after ultrasonic treatment, PVP is added, and the mixture is uniformly mixed to obtain a Li2C2O4 solution; and step 3, FeTiO3 powder is added to the Li2C2O4 solution, part of the solvent is evaporated to make Li2C2O4 precipitate and adhere to the surface of the FeTiO3 powder, the coated product obtained after solid-liquid separation is washed and dried to obtain the Li2C2O4-coated FeTiO3 anode material. The introduction of Li2C2O4 compensates for the lithium loss in the process of forming a first SEI film, constructs a lithium ion transmission channel, and the lithium ions of the cathode in the first charging can more easily reach the negative electrode to react, thereby greatly improving the initial capacity of the electrode material. Meanwhile, a protective layer is formed on the surface of the coated structure to inhibit the deactivation of the electrode material in the cycle process, compensate for the defect of low material capacity, and improve the lithium storage capacity of the material itself.

The application discloses a high-load porous carbon-coated integrated electrode constructed by one-step super-fast Joule heating and a preparation method and application thereof. The electrode comprises a current collector and an active material layer, and the active material layer has a three-dimensional porous carbon-coated integrated structure composed of an active material, a conductive agent and an in-situ generated carbon layer. The preparation method is to perform super-fast Joule heating treatment on the current collector coated with an electrode precursor wet film, and to synchronously complete solvent evaporation pore forming, binder / conductive agent carbonization coating and interface fusion in one step within a second. The method greatly simplifies the process, and the prepared electrode has high active material loading (active material surface loading≥20 mg / cm 2 ), rich ion transmission channels and excellent interface electron / ion conductivity, effectively solves the problem of slow charge transmission kinetics in high-load electrodes, and significantly improves the rate performance and unit area capacity of the battery.