MXene / MoS2 diaphragm electrostatic self-assembly equipment

Abstract

The utility model discloses MXene / MoS2 diaphragm electrostatic self-assembly equipment which is characterized in that a circulating rotating part is a steel belt or a roller, a rotating shaft of the circulating rotating part is in transmission connection with a driven gear, a transmission mechanism is used for conveying the circulating rotating part and is provided with a spraying station, a driving gear is in transmission connection with a driving motor, and a first lifting cylinder is used for driving the driving gear and the driving motor to lift; the driven gear enables the driving gear to be meshed with or far away from the spraying station, the spraying mechanism arranged above the spraying station comprises a plurality of atomizing nozzles, and the atomizing nozzles are used for spraying dispersion liquid to the diaphragm substrate on the circulating rotating part. Compared with the prior art, electrostatic self-assembly is combined with atomization spraying, diaphragm particles are uniform, the porosity precision of the diaphragm is improved, electrostatic self-assembly is combined with rotation, interlayer intersection is firm, in addition, gradient temperature drying is executed, and the interlayer binding force is further improved.

Description

Technical Field

[0001] This utility model relates to composite membrane processing, and more particularly to an electrostatic self-assembly device for MXene / MoS2 membranes. Background Technology

[0002] With the continuous development of new energy batteries, the requirements for membrane porosity accuracy and Mxene / MoS2 interlayer bonding strength are constantly increasing. The existing brush and roller coating technology is not easy to control membrane porosity, and the Mxene / MoS2 interlayer bonding strength needs to be improved. The existing technology can no longer meet the actual needs. Utility Model Content

[0003] The present invention aims to solve at least one of the technical problems mentioned above, and to provide an electrostatic self-assembly device for MXene / MoS2 membranes, which improves the porosity accuracy of the membrane and enhances the interlayer bonding force.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0005] An electrostatic self-assembly device for MXene / MoS2 diaphragms includes a tooling, a conveying mechanism, a driving mechanism, and a spraying mechanism. The tooling includes a rotating component and a driven gear. The rotating component is a steel belt or a roller, and its shaft is driven to the driven gear. The conveying mechanism is used to transport the tooling and is provided with a spraying station. The driving mechanism includes a driving gear, a driving motor, and a first lifting cylinder. The driving gear is driven to the driving motor. The first lifting cylinder is used to drive the driving gear and the driving motor to move up and down, so that the driving gear meshes with or moves away from the driven gear at the spraying station. The spraying mechanism is located above the spraying station and includes multiple atomizing nozzles. The atomizing nozzles are used to spray MXene dispersion and / or MoS2 dispersion onto the diaphragm substrate on the rotating component.

[0006] Compared with existing technologies, the beneficial effects of this application include: adjusting different atomization pressures can achieve corresponding porosities; compared with liquid-phase self-assembly, electrostatic self-assembly combined with atomization spraying results in uniform membrane particles, improving the accuracy of membrane porosity; parameters such as spraying spacing and atomization pressure are highly controllable, facilitating industrialization; electrostatic self-assembly combined with rotation ensures strong interlayer bonding; furthermore, gradient temperature drying further enhances interlayer adhesion. The MXene / MoS2 composite improves the thermal stability and ion transport efficiency of the membrane, making it suitable for high-capacity energy storage and conversion applications.

[0007] As an improvement to the above technical solution, a spraying mechanism and a gradient temperature drying channel are sequentially arranged along the transmission direction of the transmission mechanism.

[0008] As an improvement to the above technical solution, the transmission mechanism is divided into at least three transmission segments, including a first transmission segment for electrostatic self-assembly, a third transmission segment for feeding the tooling and diaphragm into the gradient temperature drying channel, and a transition transmission segment located between the first transmission segment and the third transmission segment. The first transmission segment, the transition transmission segment, and the third transmission segment are driven by different motors.

[0009] As an improvement to the above technical solution, the gradient temperature drying channel includes at least X drying segments, where X ≥ 10. Each of the at least X drying segments is equipped with an independent temperature control device. The at least X drying segments are used to control the gradient drying time t1, t2, ..., t... n The ratio of the number of calls to N1, N2, ..., N is used to determine the proportion of the number of calls. n The two ratios deviate by ±5%.

[0010] As an improvement to the above technical solution, the gradient temperature drying channel is provided with a peripheral wall cavity, and inert hot air circulates between the peripheral wall cavity and the gradient temperature drying channel.

[0011] As an improvement to the above technical solution, the gradient temperature drying channel is provided with a first section for pre-drying to remove surface water, a second section for main drying solvent diffusion to remove water, and a third section for post-drying crystallization along the transmission direction, with the third section being vacuum dried.

[0012] As an improvement to the above technical solution, an isolation cover for covering the transmission mechanism is also included.

[0013] As an improvement to the above technical solution, the transmission mechanism is covered by an isolation cover, and a winch is provided on the top of the isolation cover. The winch's roller shutter is used to pass through the top of the isolation cover and move around. The roller shutter, together with the isolation cover, defines a transition chamber for docking with the gradient temperature drying channel. The winch opens and closes the transition chamber through the roller shutter.

[0014] As an improvement to the above technical solution, a second lifting cylinder is also included. The second lifting cylinder is used to drive multiple atomizing nozzles to rise and fall, and the multiple atomizing nozzles are used to spray dispersion liquid toward the front or rear end of the circulating rotating part.

[0015] As an improvement to the above technical solution, multiple atomizing nozzles are arranged in a collection hood. The collection hood has a window for allowing the atomizing nozzles to spray the dispersion liquid toward the circulating rotating component. The collection hood is provided with a collection groove located below the atomizing nozzles. The second lifting cylinder drives the multiple atomizing nozzles to rise and fall through the collection hood. Attached Figure Description

[0016] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings, wherein:

[0017] Figure 1 This is a schematic diagram of the structure of the MXene / MoS2 membrane electrostatic self-assembly device according to an embodiment of the present invention;

[0018] Figure 2 for Figure 1 A cross-sectional view of the MXene / MoS2 membrane electrostatic self-assembly device is shown.

[0019] Figure 3 for Figure 1 This shows a side-view sectional view of the MXene / MoS2 membrane electrostatic self-assembly device;

[0020] Figure 4 for Figure 2 A schematic diagram of the tooling structure of the MXene / MoS2 membrane electrostatic self-assembly device is shown.

[0021] The accompanying drawings are only one specific embodiment of this utility model, and the form and structure of this specific embodiment should not limit the extension of other embodiments.

[0022] Tooling 100, bracket 110, rotating component 120, driven gear 130;

[0023] Transmission mechanism 200, first transmission segment 210, transition transmission segment 220, third transmission segment 230;

[0024] Drive mechanism 300, drive motor 310, first lifting cylinder 320;

[0025] Spraying mechanism 400, atomizing nozzle 410, second lifting cylinder 420, collection hood 430, window 431, collection trough 432;

[0026] 500 isolation enclosure, 510 transition chamber;

[0027] 600 hoist, 610 roller shutter, 611 baffle. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] Reference Figures 1 to 3 This utility model provides an electrostatic self-assembly device for MXene / MoS2 diaphragms, including a tooling 100, a transmission mechanism 200, a driving mechanism 300, and a spraying mechanism 400.

[0030] Reference Figures 2 to 4 The tooling 100 includes a support 110, a rotating component 120, and a driven gear 130. The rotating component 120 is a steel belt or a roller. Within the same space of the transmission mechanism 200, a steel belt can be used to fabricate a diaphragm with a larger circumference, facilitating equipment miniaturization. The rotating component 120 is mounted on the support 110, and its shaft is driven by the driven gear 130. The transmission mechanism 200 is used to transport the tooling 100 and includes a spraying station 0003. The drive mechanism 300 includes a drive gear 0001, a drive motor 310, and a first lifting cylinder 320. The drive gear 0001 is driven by the drive motor 310, and the first lifting cylinder 320 drives the drive gear 0001 and the drive motor 310 to move up and down, causing the drive gear 0001 to engage or disengage. The driven gear 130 of the spraying station 0003 and the spraying mechanism 400 are located above the spraying station 0003. The spraying mechanism 400 includes multiple atomizing nozzles 410, which are used to spray MXene dispersion and / or MoS2 dispersion onto the diaphragm substrate 0004 on the rotating component 120. The MXene dispersion and MoS2 dispersion are positively and negatively charged, respectively, and their charges attract each other. At the interlayer interface, the MXene particles and MoS2 particles exhibit a self-assembly bond. The atomizing nozzles 410 are connected to a pressure regulating valve and a dispersion storage tank.

[0031] Understandably, to ensure uniform spraying, each group of atomizing nozzles (i.e., multiple atomizing nozzles 410) can be arranged along the axial direction of the rotating component 120, along a serrated line, or spirally around the rotating component 120.

[0032] When the revolving rotating component 120 is a roller, it rotates in a circular motion. When the revolving rotating component 120 is a steel belt, it rotates in a non-circular motion, with the steel belt wound around at least two pulleys. The shaft of the pulleys is the "actual shaft" of the steel belt, and the shaft of the pulleys is connected to the driven gear 130. Furthermore, it can be understood that the shaft of the revolving rotating component 120 can be directly connected to the driven gear 130, for example, the driven gear 130 can be directly mounted on the shaft of the revolving rotating component 120 without the need for an additional support bracket 110, such as mounting the driven gear 130 on the shaft of a roller. The revolving rotating component 120 can also be connected to the driven gear 130 via a gear train, belt, chain, etc. In this case, the driven gear 130 is generally rotatably connected to the support bracket 110.

[0033] Motors, including electric motors (electric motors), pneumatic motors, and hydraulic motors, refer to... Figure 2 , Figure 3 The drive motor 310 is an electric motor; the lifting cylinder is a cylinder used to drive the lifting of the executed part, and the cylinder can be a pneumatic cylinder, a hydraulic cylinder, or an electric cylinder.

[0034] Preferably, this utility model also includes side plates, with a limiting channel formed between the two side plates, along which the tooling 100 is transported. When the tooling 100 is transported on the transmission mechanism 200, the tooling 100 and the rotating component 120 are difficult to deviate left or right. When the rotating component 120 is paused in the limiting channel and driven by the drive mechanism 300, the rotating component 120 is not easy to wobble and rotates stably, like the rolling of a roller or the cyclic rotation of a steel belt.

[0035] The rollers can be made of metal; more preferably, the rollers and steel belts are circulating rotating parts 120 of platinum-plated titanium alloy. The platinum coating on the titanium alloy surface combines the lightweight and high strength of titanium with the excellent chemical stability of platinum, providing superior resistance to acids and alkalis, and corrosion.

[0036] In some embodiments of this utility model, a spraying mechanism 400 and a gradient temperature drying channel 0002 are sequentially arranged along the transmission direction of the transmission mechanism 200. The gradient temperature drying channel 0002 is used for gradient temperature drying of the diaphragm. The transmission direction of the transmission mechanism 200 is referenced. Figures 1 to 3 The V direction is shown.

[0037] Reference Figure 2 , Figure 3 In some embodiments of this utility model, the transmission mechanism 200 is divided into at least three transmission segments. These at least three transmission segments include a first transmission segment 210 for electrostatic self-assembly, a third transmission segment 230 for conveying the tooling 100 and the diaphragm into the gradient temperature drying channel 0002, and a transition transmission segment 220 located between the first transmission segment 210 and the third transmission segment 230. The first transmission segment 210, the transition transmission segment 220, and the third transmission segment 230 are each driven by different motors. Each of the at least three transmission segments is driven independently by its corresponding motor, and each transmission segment can start and stop independently. Specifically, when the first transmission segment 210 is paused to perform electrostatic self-assembly, the transition transmission segment 220 can also be paused.

[0038] On the other hand, the third transmission segment 230 uses heat-resistant materials such as metal belts and chains for transmission fixture 100, while the first transmission segment 210 and the transition transmission segment 220 can use belts. The fixture 100 can be equipped with a concave-convex structure and a rougher bottom surface to increase the friction of transmission and facilitate the shifting of metal belts / chains.

[0039] The production of the MXene / MoS2 membrane includes dispersion preparation, specifically the preparation of MXene and MoS2 dispersions. It is understood that the atomizing nozzle 410, via a shut-off valve and / or pump body, connects to the MXene and / or MoS2 storage tanks. Under pressure from the pump body and other equipment, the dispersion flows to the nozzle and is sprayed out through the atomizing nozzle 410. Furthermore, the spraying mechanism 400, tooling 100, and drive mechanism 300 are designed with corresponding insulation to facilitate the electrostatic self-assembly of positively charged MXene and negatively charged MoS2.

[0040] The operation process of this utility model can be as follows:

[0041] MXene dispersions were prepared by etching the MAX phase (such as Ti3AlC2) with HF or LiF+HCl to obtain few-layer Ti3C2T. x Then, after ultrasonic exfoliation, it is dispersed in deionized water to form a uniform MXene dispersion. Surface modifiers such as polyethyleneimine (PEI) are added to make MXene positively charged.

[0042] MoS2 dispersions were prepared by chemical vapor deposition (CVD) or liquid phase exfoliation to create MoS2 nanosheets (1-3 layers). The MoS2 nanosheets were dispersed in deionized water and sonicated for approximately 1 hour. This exposed more edge sulfur vacancies (S defects), enhancing the interfacial bonding with MXene.

[0043] Substrate pretreatment: PET or polyolefin membrane is laid as substrate 0004 in the cyclic rotating part 120 to ensure that the surface of substrate 0004 is clean, such as plasma treatment to improve adhesion.

[0044] Reference Figure 2 , Figure 3 Under the drive of the substrate feeding and transmission mechanism 200, the circulating rotating component 120 and the substrate 0004 are transported to the spraying station 0003. When the spraying station 0003 detects a new circulating rotating component 120 or a new substrate 0004, the transmission segment below the spraying station 0003 is paused, and the first lifting cylinder 320 drives the drive gear 0001 to rise, so that the drive gear 0001 meshes with the driven gear 130 of the spraying station 0003.

[0045] Reference Figure 2 , Figure 3Alternating spraying is employed, with the drive motor 310 rotating the rotating component 120 at spraying station 0003. The rotating component 120 begins its rotation, using an automatic spray gun (such as the German Schutzeka-2). First, a positively charged MXene dispersion is sprayed to form a uniform thin layer, followed by a negatively charged MoS2 dispersion. This utilizes electrostatic self-assembly (cross-linking) to form an alternating layered structure, and then a further spraying of the positively charged MXene dispersion. Therefore, alternating impregnation combined with electrostatic self-assembly allows oppositely charged materials to be adsorbed layer by layer, relying on intermolecular electrostatic interactions (such as Coulomb forces) and entropy-driven processes to form a cross-linked multilayer structure with precise layer thickness, resulting in an ordered multilayer structure. The nozzle diameter can be selected as 0.2mm or 0.3mm, and the atomization pressure is 4-6 bar to control atomization effect and uniformity, achieving a porosity of approximately 40%-70%. The spraying distance is 10-20cm, and the rotating component 120 rotates at a uniform speed, ensuring even spraying and avoiding localized excessive thickness.

[0046] The spinning needle is an equivalent replacement for the atomizing nozzle 410.

[0047] In some embodiments of this utility model, the gradient temperature drying channel 0002 includes at least X drying segments, where X ≥ 10. Each of the at least X drying segments is equipped with an independent temperature control device. The at least X drying segments are used to control the gradient drying time t1, t2, ..., t3. n The ratio of the number of calls to N1, N2, ..., N is used to determine the proportion of the number of calls. n Since the quantity N is an integer, the deviation between the two ratios is ±5%. Furthermore, under the condition of meeting the diaphragm quality requirements, t1, t2, ..., and t can be appropriately increased or decreased. n One or more of the following. Each drying section can be heated by an electric heating element, with the electric heating element in each drying section distributing the corresponding current / power to maintain it at the corresponding drying temperature; each drying section can also be a drying channel with a heat medium flowing through its surrounding wall, such as hot water or hot oil, with each drying section connected to the heat medium through a corresponding throttle valve, adjusting the flow rate and / or velocity of the throttle valve, and / or adjusting the pressure of the heat medium to maintain each drying section at the corresponding drying temperature.

[0048] As described below, the separator obtained by electrostatic self-assembly undergoes three stages of drying: a first stage, a second stage, and a third stage. The operation of this invention also includes gradient drying: the first stage drying (i.e., pre-drying to remove surface water) is at 40–60°C for approximately 30 minutes (t1), slowly evaporating surface solvent moisture to prevent surface crusting, curling, and localized stress concentration; the second stage drying (i.e., main drying to remove water through solvent diffusion) is at 60–80°C for approximately 1 hour (t2), evaporating interlayer solvent, accelerating internal solvent diffusion, forming uniform and stable pores, and ensuring the compactness of the MXene / MoS2 separator; the third stage drying (i.e., post-drying crystallization) is at 80–100°C for approximately 2 hours, completely removing residual solvent and enhancing crystallinity. The ratio of t1, t2, and t3 is 0.5:1:2, so the number of drying stages (i.e., N1, N2, N3) used in each gradient drying stage can be 1, 2, 4, or 2, 4, 8, etc.

[0049] Some MXene / MoS2 membranes undergo post-processing, such as peeling and lamination, and performance testing. When PET is used as a temporary substrate, the MXene / MoS2 membrane needs to be peeled off and transferred to the target substrate 0004 (such as a polyolefin-based membrane). The membrane's uniformity, porosity, ionic conductivity, and thermal stability are tested.

[0050] Furthermore, the gradient temperature drying channel 0002 is provided with a peripheral wall cavity, and inert hot gas circulates between the peripheral wall cavity and the gradient temperature drying channel 0002. Specifically, in conjunction with a heat source / heating structure, nitrogen gas at temperatures corresponding to 40–60°C and 60–80°C circulates between the gradient temperature drying channel 0002 and its peripheral wall cavity. Heat treatment in an inert atmosphere allows Ti at the edge of MXene to form a stable sulfide interface (such as a TiS2 transition layer) with S in MoS2.

[0051] Furthermore, the gradient temperature drying channel 0002 is sequentially configured along the transmission direction with a first section for pre-drying to remove surface water, a second section for main drying solvent diffusion to remove water, and a third section for post-drying crystallization. The third section is vacuum dried to reduce bubbles and defects. Specifically, an openable and closable closed structure can be provided between the second and third sections, and between the third and fourth sections. The third section is connected to a vacuum negative pressure unit.

[0052] Compared with existing technologies, the beneficial effects of this application include: adjusting different atomization pressures can achieve corresponding porosities; compared with liquid-phase self-assembly, electrostatic self-assembly combined with atomization spraying results in uniform membrane particles, improving the accuracy of membrane porosity; parameters such as spraying spacing and atomization pressure are highly controllable, facilitating industrialization; electrostatic self-assembly combined with rotation ensures strong interlayer bonding; furthermore, gradient temperature drying further enhances interlayer adhesion. The MXene / MoS2 composite improves the thermal stability and ion transport efficiency of the membrane, making it suitable for high-capacity energy storage and conversion applications.

[0053] Reference Figures 1 to 3 In some embodiments of this utility model, an isolation cover 500 is also included for covering the transmission mechanism 200. The isolation cover 500 provides stable transmission, stable atomization, and stable electrostatic self-assembly. In addition, the gas that escapes during processes such as atomization spraying and inert drying is easy to collect and treat.

[0054] Reference Figures 1 to 3 In some embodiments of this invention, the transmission mechanism 200 is covered by an isolation cover 500. A winch 600 is installed on the top of the isolation cover 500. The roller shutter 610 of the winch 600 passes through the top of the isolation cover 500 and moves along it. The roller shutter 610, combined with the isolation cover 500, defines a transition chamber 510 located in the transmission mechanism for docking with the gradient temperature drying channel 0002. The winch 600 opens and closes the transition chamber 510 through the roller shutter 610. In this invention, the transition chamber 510 reduces heat loss from the gradient temperature drying channel 0002. In some embodiments, the transition chamber 510 even has a heating structure.

[0055] Reference Figures 1 to 3 In some embodiments of this utility model, a stop bar 611 is provided at the lower end of the roller shutter 610, and a sliding groove is provided on the inner wall of the isolation cover 500 to allow the stop bar 611 to rise and fall. The stop bar 611 is used to stop or release the transmission of the tooling 100.

[0056] In some configurations, the atomizing nozzle 410 is connected to both the Mxene storage tank and the MoS2 storage tank, and the atomizing nozzle 410 alternately sprays Mxene dispersion and MoS2 dispersion. In some configurations, two sets of atomizing nozzles 410 are arranged at intervals around the rotating component 120, and the two sets of atomizing nozzles 410 are respectively connected to the Mxene storage tank and the MoS2 storage tank, with each set of atomizing nozzles 410 arranged along the axial direction of the rotating component 120.

[0057] Reference Figures 1 to 3In some configurations, multiple atomizing nozzles 410 spray the dispersion liquid downwards toward the top of the rotating member 120. Some configurations also include a second lifting cylinder 420, which drives the multiple atomizing nozzles 410 to rise and fall, and the multiple atomizing nozzles 410 spray the dispersion liquid toward the front or rear end of the rotating member 120; the multiple atomizing nozzles 410 driven by the second lifting cylinder 420 can be a group or two groups.

[0058] Specifically, both the Mxene nozzle group and the MoS2 nozzle group spray the dispersion liquid towards the top of the rotating component 120, with the two sets of atomizing nozzles 410 arranged one in front of the other. In some configurations, the rotating component 120 is a roller, and the two sets of atomizing nozzles 410 spray towards the front and rear ends of the roller, respectively; in other configurations, the rotating component 120 is a steel belt, and both sets of atomizing nozzles 410 spray towards either the front or rear end of the roller.

[0059] Reference Figure 2 , Figure 3 In some embodiments of this utility model, a plurality of atomizing nozzles 410 are disposed in a collection hood 430. The collection hood 430 is provided with a window 431, which allows the atomizing nozzles 410 to spray the dispersion liquid toward the circulating rotating member 120. The collection hood 430 is provided with a collection trough 432 located below the atomizing nozzles 410. The second lifting cylinder 420 drives the plurality of atomizing nozzles 410 to rise and fall through the collection hood 430. The dispersion liquid sprayed by the atomizing nozzles 410 that is not adsorbed onto the circulating rotating member 120 can be recovered into the collection trough 432.

[0060] When both sets of atomizing nozzles 410 spray towards the front or rear end of the rotating component 120, two collection covers 430 can be provided, or even the two collection covers 430 can be integrally formed, and the second lifting cylinder 420 drives the two collection covers 430 to rise and fall synchronously.

[0061] When the two sets of atomizing nozzles 410 spray towards the front and rear ends of the rotating component 120 respectively, the two sets of atomizing nozzles 410 are driven by the corresponding second lifting cylinders 420. Further preferably, the first transmission segment 210 is divided into a front segment and a rear segment, which start and stop independently. The rear segment is used as the spraying station 0003. When the rotating component 120 is transmitted from the rear segment, the front segment is paused. When the rotating component 120 is transmitted to the rear area of ​​the rear segment, the rotating component 120 is paused, so that there is a certain distance between the rotating component 120 and the front segment, which facilitates the lowering of the corresponding collection hood 430 and nozzle group.

[0062] The above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Any modifications or equivalent substitutions that do not depart from the spirit and scope of this utility model should be covered within the scope of the technical solution of this utility model.

Claims

1. An electrostatic self-assembly device for MXene / MoS2 diaphragms, characterized in that, include: The tooling includes a rotating component and a driven gear, wherein the rotating component is a steel belt or a roller, and its shaft is connected to the driven gear. The conveying mechanism for transporting the tooling is equipped with a spraying station; The drive mechanism includes a drive gear, a drive motor, and a first lifting cylinder. The drive gear is connected to the drive motor, and the first lifting cylinder is used to drive the drive gear and the drive motor to move up and down, so that the drive gear meshes with or moves away from the driven gear at the spraying station. A spraying mechanism is disposed above the spraying station. The spraying mechanism includes a plurality of atomizing nozzles, which are used to spray MXene dispersion and / or MoS2 dispersion onto the diaphragm substrate on the rotating component.

2. The MXene / MoS2 membrane electrostatic self-assembly device according to claim 1, characterized in that, A spraying mechanism and a gradient temperature drying channel are sequentially arranged along the transmission direction of the transmission mechanism.

3. The MXene / MoS2 membrane electrostatic self-assembly device according to claim 2, characterized in that, The transmission mechanism is divided into at least three transmission segments, including a first transmission segment for electrostatic self-assembly, a third transmission segment for feeding tooling and diaphragm into a gradient temperature drying channel, and a transition transmission segment located between the first and third transmission segments. The first transmission segment, the transition transmission segment, and the third transmission segment are driven by different motors.

4. The MXene / MoS2 membrane electrostatic self-assembly device according to claim 2, characterized in that, The gradient temperature drying channel includes at least X drying segments, where X ≥ 10. Each of the at least X drying segments is equipped with an independent temperature control device. These at least X drying segments are used to control the gradient drying time t1, t2, ..., t3. n The ratio of the number of calls to N1, N2, ..., N is used to determine the proportion of the number of calls. n The two ratios deviate by ±5%.

5. The MXene / MoS2 membrane electrostatic self-assembly device according to claim 2, characterized in that, The gradient temperature drying channel is provided with a peripheral wall cavity, and inert hot air circulates between the peripheral wall cavity and the gradient temperature drying channel.

6. The MXene / MoS2 membrane electrostatic self-assembly device according to claim 2, characterized in that, The gradient temperature drying channel is sequentially configured along the transmission direction as follows: a first section for pre-drying to remove surface water, a second section for main drying solvent diffusion to remove water, and a third section for post-drying crystallization. The third section is vacuum dried.

7. The MXene / MoS2 membrane electrostatic self-assembly apparatus according to any one of claims 1 to 6, characterized in that, It also includes an isolation cover for covering the transmission mechanism.

8. The MXene / MoS2 membrane electrostatic self-assembly apparatus according to any one of claims 2 to 6, characterized in that, The transmission mechanism is covered by an isolation cover, and a winch is installed on the top of the isolation cover. The winch's roller shutter is used to pass through the top of the isolation cover and move around. The roller shutter, together with the isolation cover, defines a transition chamber for docking with the gradient temperature drying channel. The winch opens and closes the transition chamber through the roller shutter.

9. The MXene / MoS2 membrane electrostatic self-assembly device according to claim 3, characterized in that, It also includes a second lifting cylinder, which is used to drive multiple atomizing nozzles to rise and fall, and the multiple atomizing nozzles are used to spray dispersion liquid toward the front or rear end of the circulating rotating part.

10. The MXene / MoS2 membrane electrostatic self-assembly device according to claim 9, characterized in that, Multiple atomizing nozzles are arranged in a collection hood. The collection hood has windows that allow the atomizing nozzles to spray the dispersion liquid toward the circulating rotating component. The collection hood has a collection groove located below the atomizing nozzles. A second lifting cylinder drives the multiple atomizing nozzles to rise and fall through the collection hood.

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