61results about How to "Good coating effect" patented technology

The utility model provides a kind of water colloid dressing surface gel's coating device, including rack, be set on the coating channel of rack and be set in the substrate conveying mechanism of coating channel;The feed end of substrate conveying mechanism connects base material frame, and the discharge end of substrate conveying mechanism connects split charging equipment;The top surface inside coating channel is provided with injection mechanism and spreading mechanism, injection mechanism is close to the feed end of substrate conveying mechanism, and spreading mechanism is close to the discharge end of substrate conveying mechanism;The discharge port of injection mechanism and spreading mechanism are opposite the centre line of substrate;The outside of coating channel is provided with water colloid storage tank, and water colloid storage tank connects injection mechanism to feed injection mechanism.The water colloid dressing surface gel's coating device has the advantages that design science, operation is simple, coating effect is good, and can be used for dressing production process.

The application belongs to the technical field of soft magnetic material preparation, and particularly relates to a ferrosilicon magnetic material and a preparation method and application thereof. The preparation method comprises the following steps: (1) mixing ferrosilicon magnetic powder and a passivation agent, and then performing primary heat treatment and cooling to room temperature at a speed of not higher than 30 DEG C / h; (2) mixing the magnetic powder obtained in the step (1) with the passivation agent to obtain passivated magnetic powder; (3) adding a first coating agent to the passivated magnetic powder to perform primary coating, and then performing secondary heat treatment; and (4) adding a second coating agent to the magnetic powder obtained in the step (3) to perform secondary coating, pressing, and then performing tertiary heat treatment. The average particle size of the first coating agent is 300 nm-1 mu m; and the second coating agent comprises colloidal particles, and the average particle size of the colloidal particles is not higher than 100 nm. The preparation method can improve the density and effective magnetic permeability of the ferrosilicon magnetic material, so that the ferrosilicon magnetic material has excellent magnetic performance, the loss is greatly reduced, heat generation is reduced, and the device is beneficial to energy saving and high efficiency.

This invention provides a liquid metal-based thermal grease, its preparation method, and its application. The liquid metal-based thermal grease comprises the following raw materials in parts by weight: 100 parts liquid metal, 2-5 parts silicone oil, 0.1-20 parts thermally conductive powder filler, and 0.1-3 parts other additives. The high-reliability liquid metal-based thermal grease provided by this invention possesses excellent high thermal conductivity, high processability, and high reliability. It can replace traditional thermal grease to solve the heat dissipation and cooling problem of high-power chips, thereby extending the lifespan of electronic products.

This invention relates to the field of battery technology, and more particularly to a positive electrode lithium replenisher, its preparation method, a positive electrode sheet, and a lithium battery. The aforementioned positive electrode lithium replenisher includes a core and a shell, with the shell covering the surface of the core to isolate the core from the side reaction environment. The core is a lithium-rich material, specifically at least one of Li5FeO4, Li5ReO6, and Li6CoO4. The shell is cobalt boride. This core-shell structured positive electrode lithium replenisher with cobalt boride as the shell effectively coats the core material, improves the air stability of the positive electrode lithium replenisher, reduces residual alkali, and thus enhances the battery's energy density and cycle performance.

The utility model relates to the technical field of film laminating machines, and discloses a printing and packaging film laminating machine which comprises a rack, a motor is fixedly connected to the side wall of the rack, two conveying rollers are rotatably connected to the interior of the rack, the end of one conveying roller is fixedly connected with an output shaft of the motor, and the end of the other conveying roller is fixedly connected with an output shaft of the motor. A discharging roller is rotationally connected into the rack, a storage box is fixedly connected to the inner wall of the top end of the rack, an electromagnetic valve is arranged at the bottom of the storage box, a telescopic pipe is arranged at the bottom of the electromagnetic valve, and a gluing box is fixedly connected to the bottom of the telescopic pipe. The gluing roller provided by the utility model is arranged on the surface of a packaging piece in a pressing manner, so that an adhesive can be smeared on the surface of the packaging piece, the gluing roller rotates continuously after gluing, and the adhesive stored in the storage pipe can be conveyed to the surface of the gluing roller through the telescopic pipe and the gluing box. And more adhesive can be kept on the roller wall of the gluing roller, so that the use effect is ensured.

The utility model discloses a packaging film laminating machine which comprises stand columns, one sides of the stand columns are fixedly connected with supporting frames, cross beams are fixedly arranged at the bottom ends of the stand columns, a plurality of moving assemblies are arranged at the bottoms of the cross beams, the moving assemblies are at least used for flexible movement of the cross beams on the ground, and an adjusting assembly is arranged above the position between the two stand columns. The adjusting assembly is at least used for adjusting the distance between the two stand columns, a film rolling assembly is arranged on one side of the adjusting assembly, a film roller is arranged outside the film rolling assembly, an adjusting mechanism is arranged on the supporting frame, a film distributing rod is installed on the adjusting mechanism, and the adjusting mechanism is at least used for adjusting the position of the film distributing rod on the supporting frame. According to the utility model, the film roller is arranged on the film rolling component, and the movable component flexibly moves on the ground, so that the film covering processing of a product is realized, the manual film covering operation of the product is replaced, the labor intensity of workers can be effectively reduced, the working efficiency is improved, and the top film covering cost is reduced.

The application discloses a silicon-carbon negative electrode material, a preparation method and a battery, and relates to the technical field of battery materials. The preparation method comprises the following steps: placing a porous carbon material in an inert atmosphere, pre-treating by heating, and removing impurities and moisture on the surface of the material; depositing a nano-silicon layer on the surface of the pre-treated porous carbon material in a gas phase; then depositing a carbon coating layer on the surface of the nano-silicon layer; and performing oxidation passivation treatment on the surface of the carbon coating layer, thereby obtaining the silicon-carbon negative electrode material.

The application provides a thin film deposition device in the technical field of thin film deposition, which comprises a workbench, a vacuum tank, a vacuum cover, a quartz tube, an outer cover cylinder, a coil assembly, a gas supply mechanism, a gas extraction mechanism, a sample stage mechanism, a knocking mechanism and a lifting mechanism. Working gas can be ionized in an inductive coupling area to form a plasma, so that various active species are generated from the working gas, and reactions occur between the active species or between the active species and monomers, so as to facilitate the deposition of a polymer film on the surface of sample microspheres in the subsequent process, and the film plating effect of the product is improved. The knocking mechanism is installed on the workbench, passes through the vacuum tank and is attached to the sample stage mechanism, so that the knocking mechanism knocks the sample stage mechanism, thereby causing the multiple sample microspheres placed in the sample stage mechanism to vibrate, avoiding the adhesion of the multiple sample microspheres and improving the film plating effect of the sample microspheres.

The invention discloses a semiconductor processing-based resin reinforced adhesive coating device and method, and relates to the technical field of semiconductor processing. The device comprises an equipment box and a semiconductor material fixedly connected to a substrate, and further comprises a processing platform which is arranged on the equipment box, a movable transverse plate is installed on the processing platform in a sliding mode, and a movable assembly is arranged between the movable transverse plate and the equipment box; the machining platform is provided with two positioning assemblies used for positioning a base plate. And the movable frame is arranged on the movable transverse plate, a lifting plate is arranged on the movable frame through a lifting assembly, and two coating units are arranged on the lifting plate. The device has the beneficial effects that through cooperation of the external spraying pipe and the internal spraying pipe, effective tackifier spraying can be conducted on the outer connecting angle and the inner connecting angle of a substrate and a semiconductor material at the same time, spraying pertinence is higher, meanwhile, horizontal moving spraying of the outer connecting angle and the inner connecting angle can be achieved under cooperation of the moving assembly, the spraying range is wider, and efficiency is higher.

The application belongs to the technical field of coating processing, and particularly relates to a composite coating equipment for surface protection of electric power fittings. The existing workpiece clamping device is too simple, is not suitable for high-precision machining in conceptual design, affects the coating effect, and is complicated in operation every time the workpiece is taken and placed, which is not conducive to improving the machining speed. The present application provides the following scheme, which comprises a first shell, a second shell is rotatably arranged on one side of the first shell, and two groups of magnetron sputtering and ion plating for coating the extension pipe are arranged on the first shell. In the application, the placing rack is detachably arranged with the base, and is used in cooperation with the vehicle body, so that the extension pipe can be clamped outside the first shell, and the first rotating shaft can be lifted and moved by pulling the L-shaped rotating plate, so that all the extension pipes can be fixed at the same time, the clamping is convenient, and the placing rack can be recycled, thereby improving the coating efficiency.

The application relates to a film-coating pretreatment device capable of improving color fastness. The treatment device is used for cleaning a fabric and comprises a cleaning pool for storing a cleaning liquid, a winding mechanism, a washing mechanism and a driving mechanism for simultaneously driving the winding mechanism and the washing mechanism to operate; wherein the washing mechanism comprises two washing assemblies which are horizontally mirror-symmetrical, each washing assembly comprises two washing rollers which are distributed upwards and downwards and are parallel to each other, and the washing rollers in the two washing assemblies have an angle with the mirror plane so that the fabric is pulled towards the edge direction, and the fabric is wound on the winding mechanism under the action of the pulling force. The application utilizes the rotating washing rollers to deeply clean the surface of the fabric, can remove stubborn residues on the surface of the fabric, so that the surface of the fabric is clean and tidy, and the film-coating effect can be improved.

The present application provides a carbon material, a preparation method therefor and the use thereof, a negative electrode plate, a secondary battery, and a power consuming device. The carbon material comprises a porous carbon substrate and an amorphous carbon layer provided on at least part of a surface of the porous carbon substrate. When the carbon material is used as a negative electrode active material, it can make full use of the abundant porous structures in the porous carbon substrate for lithium / sodium precipitation or lithium / sodium intercalation and avoid the side reactions due to the contact between the abundant active sites on the surface of the porous carbon substrate and an electrolyte solution, such that the initial coulombic efficiency and the actual capacity of a secondary battery can be improved.

The application provides an edible active coating for preventing dry consumption under an ultralow temperature condition and a preparation method, and belongs to the technical field of active packaging. The application combines double-layer coatings, inhibits free radical oxidation generated by freezing through an inner antioxidant, and effectively locks water and blocks external oxygen permeation through the synergistic effect of an outer high-barrier structure, thereby significantly improving the freezing preservation effect of food, and the raw materials are natural and safe, the preparation method is reasonable, and the application has good practical application value. The application solves the problems of poor effects of edible freezing protection coatings suitable for extremely cold environments in the prior art.

The utility model provides a kind of for steel structure coating's pier structure, it is related to pier structure technical field, for steel structure coating's pier structure includes multiple piers, multiple the pier is located below steel structure, and multiple the pier supports the steel structure in batches, the pier includes lifting device, rigid framework and rubber pad, the rigid framework is vertically located on the lifting device, the rubber pad is located in the rigid framework in vertical direction and away from one end of the lifting device, when the lifting device rises, the rubber pad is configured to abut with the steel structure. The utility model can support steel structure in batches by multiple piers, can be painted to steel structure in batches and in area, can be lifted in time pier, to facilitate in time to the area of pier sheltering is painted, ensure the uniform consistency of coating, improve painting effect.

The utility model discloses a kind of mobile phone glass cover plate processing laminating device, belong to mobile phone parts production technical field, comprising: machine body;Supporting plate, the lower surface of the supporting plate is fixedly connected with the upper surface of machine body;Laminating mechanism, the laminating mechanism is set on the side wall of supporting plate;Through the cooperation between above each device, by being provided with laminating mechanism, using flexible air bag carries out laminating and adhering processing, replace traditional "line contact" roll-in mode into "face contact" progressive pressurization mode, improve the laminating effect of laminating device to mobile phone glass cover plate, flexible air bag itself can be deformed simultaneously, therefore curved surface shape mobile phone glass cover plate can also be perfectly adhered to entire curved surface, realize the edge of curved surface is evenly applied pressure, effectively avoid the wrinkle situation when curved surface shape mobile phone glass cover plate laminating, not only improve the overall laminating effect of laminating device, also improve the application range of laminating device.

The utility model belongs to the technical field of coating processing equipment, and particularly relates to a modularized flexible film composite coating machine which comprises a vacuum evaporation module, a conveying module and an organic vapor deposition module, the vacuum evaporation module is arranged below the conveying module, the vacuum evaporation module is in sealed threaded connection with the bottom of the conveying module, and the organic vapor deposition module is arranged below the conveying module. The organic vapor deposition module is arranged above the conveying module, and the organic vapor deposition module is in sealed threaded connection with the upper part of the conveying module. Compared with the prior art, the device adopts the combination of organic vapor deposition and vacuum evaporation coating processes for coating, adopts modular assembly, is convenient to disassemble, assemble and maintain, and can adjust the tensile force of the flexible film in real time and observe the coating effect so as to timely adjust and improve the coating yield.

This invention relates to the field of coating technology, specifically to the preparation and application of a heat-insulating powder coating for color steel tile rolls. The invention provides a heat-insulating powder coating for color steel tile rolls, the raw materials for which include FEVE fluorocarbon resin, polyurethane resin, polyester resin, modifiers, isocyanate, defoamer, filler, pigment, and antistatic agent. The coating obtained by this invention has excellent heat insulation and flexibility properties, as well as high-efficiency water resistance and anti-aging effects, and has broad application prospects.

This utility model relates to the field of coating machine technology, specifically a PET release film coating machine, including a base, scrapers, and a lifting assembly. The lifting assembly is installed at the top of the base, and a spraying assembly for uniformly coating the PET film during use is provided on the inner front of the lifting assembly. There are at least two scrapers, both located inside the lifting assembly and inclined towards one side of the base. The top of each scraper has an adjustment mechanism for layering the material coated on the PET film during use. This utility model arranges the bottom ends of multiple scrapers in a stepped manner through the adjustment mechanism. After spraying by the spraying assembly, the force generated by the PET film conveyed by the base, combined with the scrapers, causes the stepped scrapers to guide and scrape the coating material layer by layer, reducing the thickness of each scraping, decreasing scraping resistance, ensuring uniform coating, and improving coating effect and product quality.

This invention discloses a high-abrasion-resistant UV matte ink for printing and its preparation method. The high-abrasion-resistant UV matte ink for printing includes the following components: polyurethane acrylate, photoinitiator, raw tung oil, UV monomer, modified nanoparticle dispersion, matting agent, and additives. Compared with existing products, the ink of this application not only has excellent printability, but also has a fine and stable texture, is not prone to agglomeration, dries evenly and quickly, is fast and efficient in printing, has strong adhesion, and is tough and abrasion-resistant. When this ink is printed on digital 3C products, the printing thickness only needs to be 3-5 μm. Even after more than 5,000 rubs, the clarity and integrity of the pattern and text can still be guaranteed, greatly improving the durability of electronic products. It can be widely used for coating and protection of digital 3C products.

The utility model relates to a spraying plate, a coating device and a solar cell manufacturing production line. The spraying plate is provided with a spraying face, the spraying face is provided with a spraying area and an air inlet area, the spraying area comprises a plurality of spraying hole sets, each spraying hole set comprises a plurality of spraying holes, the air inlet area is provided with a first air inlet hole and a second air inlet hole, the first air inlet hole is communicated with all the spraying holes of part of the spraying hole sets, and the second air inlet hole is communicated with all the spraying holes of part of the spraying hole sets. The second air inlet hole is communicated with all the spraying holes of the other spraying hole groups; the spraying area comprises an edge area and a central area; in the length direction of the spraying plate, the distance between every two adjacent spraying hole sets in the edge area is larger than the distance between every two adjacent spraying hole sets in the center area. And / or, in the same spraying hole group, in the width direction of the spraying plate, the distance between every two adjacent spraying holes in the edge area is larger than the distance between every two adjacent spraying holes in the central area. According to the spraying plate, the coating device and the solar cell manufacturing production line, the coating uniformity can be improved.

The utility model relates to the technical field of popcorn equipment, and discloses a gas explosion and sugar wrapping integrated self-service vending machine which comprises a machine frame, a production container, a corn feeding device, a corn gas explosion device, a syrup conveying device, a sugar wrapping stirring device and a discharging device, and the production container, the corn feeding device, the corn gas explosion device, the syrup conveying device, the sugar wrapping stirring device and the discharging device are arranged on the machine frame. A bursting cavity and a sugar wrapping cavity which are communicated with each other are arranged in the production container, and the production container is also provided with a discharge port communicated with the sugar wrapping cavity; the corn feeding device and the corn gas explosion device are both communicated with the bursting cavity, the corn feeding device is used for inputting corn kernels into the bursting cavity, and the corn gas explosion device is used for puffing the corn kernels in the bursting cavity into popcorn and conveying the popcorn into the sugar wrapping cavity; the syrup conveying device is communicated with the sugar wrapping cavity and is used for conveying syrup into the sugar wrapping cavity; the sugar wrapping stirring device is used for performing gas explosion stirring on the corn flowers and the syrup in the sugar wrapping cavity; the discharging device is used for opening or closing the discharging opening. The low-heat popcorn making machine can solve the problem of how to automatically make low-heat popcorns.

The present application belongs to the technical field of road construction equipment, and particularly relates to a curbstone spraying and film covering device and a construction method, which comprises a frame mechanism, a mist spraying mechanism, a protective film raw material sleeve, a traction mechanism, a downward pressing mechanism, a side pressing mechanism and a protective film roll. The traction mechanism comprises a traction roller set and a film bending roller. The axis direction of the traction roller set is vertical, and the traction roller set rotates around its own axis. The downward pressing mechanism and the side pressing mechanism are both installed on the upper end of the frame body. The upper end surface of the curbstone is attached to the protective film extension through the downward pressing mechanism, and the side surface of the curbstone is attached to the protective film extension through the side pressing mechanism. Compared with the prior art, the present application has the advantages and positive effects that the construction is more convenient and fast, only one person is needed to push the handle to perform the construction, the labor cost is saved, the mist spraying mechanism sprays in the form of mist, the water consumption is greatly saved, the laying and compaction of the protective film extension are simultaneously performed, and the laying and compaction effect is good.

The utility model discloses an evaporation source device and evaporation equipment, and relates to the field of coating equipment. The evaporation source device comprises a crucible assembly which is provided with an evaporation cavity with an upward opening, and the crucible assembly is used for heating and evaporating materials contained in the evaporation cavity; the lifting mechanism is connected with the crucible assembly and used for driving the crucible assembly to move to a plurality of different height positions in the vertical direction; and the flow promoting mechanism is used for stirring the materials in the evaporation cavity. The evaporation source device provided by the utility model can improve the film coating rate and the film coating effect.

This utility model discloses a foil wrinkle removal mechanism and a coating device, belonging to the technical field of coating devices. The foil wrinkle removal mechanism includes a work stand and multiple wrinkle removal rollers. The wrinkle removal rollers are rotatably connected to the work stand, and multiple wrinkle removal rollers are spaced apart along the Y direction on the work stand. In the transmission direction from the coating mechanism to the drying mechanism, the height of each wrinkle removal roller in the Z direction gradually increases. This foil wrinkle removal mechanism allows the foil wound from the coating mechanism to sequentially wind around the wrinkle removal rollers with gradually increasing heights in an upward-climbing conveyor belt manner before horizontally entering the drying mechanism. This ensures that the foil is not easily wrinkled during conveyor belt transport and simultaneously smooths out wrinkles on the foil, thereby ensuring the flatness of the foil during transport.

The utility model discloses a surface film laminating device for book processing, which relates to the field of book processing, solves the problem of limited heating effect caused by direct film laminating in the application document, and adopts the following scheme that the surface film laminating device comprises a conveying belt and a rack on the outer side of the conveying belt, and a film laminating roller and a waste roller are respectively assembled on the inner sides of the two ends of the rack; a heating mechanism located on the outer side of the film covering roller is further assembled on the rack, and the output end of the electric heating base is electrically connected with the heating mechanism. A cutting mechanism located on the rear side of the heating mechanism is fixedly installed on the top of the rack and comprises a top plate and two sets of cutting blades assembled at the bottom of the top plate. According to the surface film covering device for book processing, through the arrangement of the electric heating base on the rack, the heating mechanism can be conveniently electrified, a resistor of the heating mechanism is heated, a sleeved film body is heated, the contact film covering effect of a book on the bottom side of the film body is guaranteed, and then through the arrangement of the cutting mechanism, the book covered with the film can be correspondingly cut.

This invention provides a modified sodium-ion battery cathode material, its preparation method, and its application. The preparation method includes the following steps: (1) heating a sodium source, an aluminum source, and a silicon source respectively to obtain a sodium source vapor-phase precursor, an aluminum source vapor-phase precursor, and a silicon source vapor-phase precursor; (2) placing the sodium-ion cathode material in a reactor, and sequentially introducing the sodium source vapor-phase precursor, the aluminum source vapor-phase precursor, and the silicon source vapor-phase precursor, followed by introducing water vapor; (3) repeating step (2) n times to obtain the modified sodium-ion battery cathode material. This invention achieves uniform coating of a specific thickness of the sodium-ion battery cathode material based on atomic layer deposition technology. The coating process is simpler, and the coating effect is better and more uniform. Moreover, the coated sodium aluminum silicate can assist in the intercalation and deintercalation of sodium ions at the interface. After coating, the interface of the cathode material can be optimized, and the cycle stability of the sodium-ion battery can be improved.

The utility model relates to the technical field of non-woven fabric film covering, and discloses a film covering device for non-woven fabric film covering, which comprises a base and further comprises a supporting plate fixedly connected to the upper surface of the base, a connecting roller is rotatably connected to the outer portion of the supporting plate, and a connecting disc is connected to the outer portion of the connecting roller in a threaded mode; the fixed plate is fixedly connected to the upper surface of the base; the first cleaning assembly is arranged outside the fixing plate; and the [-shaped frame is fixedly connected to the upper surface of the base. According to the non-woven fabric gluing device, dust and other impurities adhering to the outer portion of the non-woven fabric can be effectively cleaned through the arranged first cleaning assembly, gluing treatment can be effectively conducted on the upper surface of the non-woven fabric through the arranged gluing assembly, and the non-woven fabric can be effectively cleaned through the arranged second cleaning assembly. And dust and other impurities attached to the exterior of the film body can be effectively cleaned, so that the film covering efficiency and effect of the non-woven fabric can be effectively improved, and the overall practicability of the device is improved.

The utility model relates to the field of coating machine discloses a slit formula mould coating machine of battery electrode, including U -shaped frame, the U -shaped frame is fixed on the top surface of frame, the inside rotatable of U -shaped frame is provided with conveying roller, the movable setting of coating die head is had at the top of frame, the top surface of coating die head is connected with the fixed conveying pipe, is equipped with conveying pump on the conveying pipe, the inside movable of U -shaped frame is provided with drying box, the inside fixed of heating box has a plurality of electric heating rod. In the utility model, through the cooperation of U -shaped frame, drying box and electric heating rod, the electrode base material can be dried in time after coating, the stability of coating surface is ensured, the adhesion or the falling phenomenon is prevented, thereby the overall uniformity of coating is improved.

The utility model provides a carrying AGV robot for building anti-corrosion paint and paint spraying equipment. The AGV robot for carrying the building anti-corrosion paint comprises a paint storage tank, an AGV, a stirring fluidization assembly and a slow flow feeding assembly. The AGV is mounted at the bottom of the paint storage tank; the slow flow feeding assembly comprises an end cover and a buffer paint guide barrel; the stirring fluidization assembly and the cache paint guide barrel are both mounted at the top end of the paint storage tank; the top end of the cache paint guide barrel extends out of the paint storage tank, and a paint feeding opening is formed; the end cover is detachably mounted on the cache paint guide barrel and covers the paint feeding opening in a sealing manner; a stirring paddle of the stirring fluidization assembly is rotationally arranged in the paint storage tank and is positioned below the lowest liquid level line of the anti-corrosion paint; and the bottom end of the buffer paint guide barrel obliquely extends towards the stirring paddle, and a paint feeding opening is formed above the stirring paddle, so that the flowability of newly fed anticorrosive paint can be improved under the stirring action of the stirring paddle, the curing of the anticorrosive paint is reduced, and the coating effect of the anticorrosive paint on the outer wall of the industrial building is improved.

The invention discloses a graphite negative electrode material and a preparation method and application thereof, and belongs to the technical field of battery materials. The graphite negative electrode material comprises a plurality of composite particles, wherein each composite particle comprises a graphite matrix, and a conductive carbon layer and a functional oxide layer which are arranged on the surface of the graphite matrix from inside to outside; a-O-X-chemical bond exists between the graphite substrate and the conductive carbon layer, and X comprises at least one of Co, Zn and Ni; a C-O-Y chemical bond is arranged between the functional oxide layer and the conductive carbon layer, and Y comprises at least one of Ti, Al, Si and P. The preparation method comprises the following steps: generating the hydroxyl active layer on the surface of the graphite substrate; and then loading a composite catalyst, coating a conductive polymer material, synthesizing a functional oxide layer and carbonizing. The graphite substrate and the conductive carbon layer as well as the conductive carbon layer and the functional oxide layer are stably combined through chemical bonds, so that the coating effect of the coating layer is improved, and the electrochemical performance of a downstream battery product is favorably improved.