Flexural electrochemical driving material as well as preparation method and application thereof

Abstract

The invention discloses a flexural electrochemical driving material as well as a preparation method and application thereof, and particularly relates to the field of driving materials. Comprising the following steps: soaking a raw material in a butyl lithium solution of hexane, and leaching a solid-phase product; wherein the raw materials have intrinsic mechano-electrochemical coupling characteristics and mechano-electric coupling characteristics; mixing the solid-phase product with deionized water to obtain a mixed solution; filtering and drying a floating layer product of the mixed solution to obtain a lamellar material; depositing a metal film on the surface of the sheet material to obtain a flexural electrochemical driving material; wherein the metal film comprises a gold film, a silver film or a copper film. According to the flexural electrochemical driving material obtained based on the method, electric energy is converted into mechanical energy through electrochemical reaction under the action of a uniform electric field, and the driving function is achieved; and under the action of electric field gradient (non-uniform electric field), driving deformation is generated based on inverse flexoelectric response, so that the deformation response rate of the driving material is accelerated, and the deformation control precision is improved.

Description

Technical Field

[0001] The present application relates to the field of driving materials, and in particular to a flexo-electrochemical driving material and its preparation method and application. Background Art

[0002] As one of the basic technical capabilities of engines, traditional electromagnetic drive technology can no longer meet the increasingly diverse drive needs. The cross-integration of multiple disciplines has not only spawned a series of cutting-edge hotspots, but also provided a new growth point for the development of engine drive technology. Studies have shown that in some specific media, there is a coupling effect between mechanics, electricity and chemistry. For example, the coupling of mechanical deformation and electric field will change the chemical reaction activity and reaction rate, inducing piezoelectric catalytic effect and flexoelectric catalytic effect. Although these studies can play a role in technical fields such as sewage treatment and hydrogen production. However, existing research does not involve the field of engine drive technology.

[0003] As a new engine drive technology, electrochemical drive is a new focus in the field of electromechanical coupling research. It offers advantages such as low voltage and low power consumption. However, due to technical issues such as the slow ion insertion process and difficulty in quantitative control, electrochemical drive technology faces challenges such as low control precision and slow operating frequency. Therefore, there is an urgent need to develop new principles, materials, and methods that can improve the response speed and control precision of electrochemical drive. Summary of the Invention

[0004] The main purpose of this application is to provide a flexible electrochemical driving material and its preparation method and application, aiming to solve the problems of low control accuracy and slow operating frequency in existing electrochemical driving technology.

[0005] To achieve the above-mentioned objectives, the present application provides a method for preparing a flexible electrochemical driving material, comprising: soaking a raw material in a butyl lithium solution in hexane and leaching out a solid phase product; wherein the raw material has intrinsic electrochemical coupling characteristics and electromechanical coupling characteristics; mixing the solid phase product with deionized water to obtain a mixed liquid; filtering and drying the floating layer product of the mixed liquid to obtain a sheet material; depositing a metal film on the surface of the sheet material to obtain a flexible electrochemical driving material; wherein the metal film includes a gold film, a silver film or a copper film.

[0006] Optionally, the raw material includes barium titanate or transition metal sulfide powder.

[0007] Optionally, the transition metal sulfide powder includes molybdenum disulfide or tungsten disulfide.

[0008] Optionally, the mass of the barium titanate or transition metal sulfide powder is 10 g to 20 g, the volume of the hexane butyl lithium solution is 10 ml to 20 ml, and the immersion time is 10 h to 24 h.

[0009] Optionally, the sheet material is prepared by filtering the floating layer product using a porous cellulose membrane to deposit it on the surface of the porous cellulose membrane; drying the porous cellulose membrane to obtain the sheet material on the surface of the porous cellulose membrane, and separating the two.

[0010] Optionally, during the preparation of the sheet material, the pore size of the porous cellulose film is 20 nm to 100 nm; the stacking time is 8 h to 10 h; the drying temperature is 30° C. to 50° C., and the drying time is 3 days to 5 days.

[0011] Optionally, before mixing the solid phase product with deionized water, the solid phase product is dried and cleaned; the drying process is: placing the solid phase product in a vacuum environment at 60°C~80°C and drying it for 24h~36h; the cleaning process is: soaking the dried product in 20ml~40ml hexane for 10min~20min; the mixing mass ratio of the solid phase product to deionized water is 2:1, and the mixing time is 1h~2h.

[0012] To achieve the above objectives, the present application also provides a flexo-electrochemical driving material, which is obtained by the above-mentioned preparation method of the flexo-electrochemical driving material.

[0013] Optionally, under the action of a uniform electric field, electrical energy is converted into mechanical energy by an electrochemical reaction to achieve driving; and under the action of an electric field gradient, driving deformation is generated based on an inverse flexoelectric response.

[0014] To achieve the above objectives, the present application also provides an application of a flexural electrochemical driving material in a driving mechanism.

[0015] Compared with the prior art, the present invention has the following advantages: The flexo-electrochemical driving material of the present invention is made from raw materials that possess intrinsic force-electrochemical coupling and force-electric coupling properties. Under the action of a uniform electric field, it converts electrical energy into mechanical energy through an electrochemical reaction, achieving its driving function. Furthermore, under the action of an electric field gradient (a non-uniform electric field), it generates driving deformation based on an inverse flexoelectric response, accelerating the deformation response rate of the driving material and improving deformation control accuracy. The preparation method of the flexo-electrochemical driving material of the present invention offers a simple process and high product stability and durability. Large-scale production is possible, thereby improving product performance consistency and reducing costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic flow chart of a method for preparing a flexo-electrochemical driving material according to the present application; Figure 2 This is a detailed flow diagram of Example 1; Figure 3 This is a scanning electron microscope image of the sheet material obtained in Example 1; Figure 4 Schematic diagram of the structure of the barium titanate flexoelectrochemical driving material obtained in Example 1; Figure 5 This is a transmission electron microscope image of the molybdenum disulfide sheet material obtained in Example 1.

[0017] The realization of the objectives, functional features and advantages of this application will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0018] To make the objectives, technical solutions, and advantages of this application more clear, the technical solutions of this application will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the embodiments described are only part of the embodiments of this application, not all of them. Based on the embodiments of this application, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of this application.

[0019] The first embodiment of the present invention provides a method for preparing a flexo-electrochemical driving material, such as Figure 1 As shown, the specific steps include: Step S1: Soaking barium titanate or transition metal sulfide powder in a butyllithium solution in hexane, and leaching the solid product to remove impurities and contaminants. The mass of the barium titanate or transition metal sulfide powder is 10-20 g, the volume of the butyllithium solution in hexane is 10-20 ml, and the soaking time is 10-24 hours. The soaking process should be carried out in an argon atmosphere. The transition metal sulfide powder includes molybdenum disulfide or tungsten disulfide. Exemplarily, the butyllithium solution in hexane is prepared by using hexane as the solvent to prepare a dilute solution with a molar concentration of 1.5-2.5 M butyllithium, and a mass concentration of 15-24% butyllithium.

[0020] Step S2, mixing the solid phase product with deionized water to obtain a mixed solution; In order to ensure that the product is not affected by excess lithium and organic matter, the solid phase product needs to be pretreated before being mixed with deionized water. The specific method is shown in step S21.

[0021] Step S21, drying and cleaning the solid phase product; wherein the drying process is: placing the solid phase product in a vacuum environment at 60°C~80°C and drying it for 24h~36h; the cleaning process is: placing the dried product in 20ml~40ml hexane and soaking it for 10min~20min.

[0022] Step S22, mixing the cleaned solid phase product with deionized water, and taking out the floating layer product of the mixed solution; wherein the mixing mass ratio of the solid phase product to the deionized water is 2:1, and the mixing time is 1 hour to 2 hours.

[0023] Specifically, the cleaned solid phase product is placed in a vacuum environment at 60°C to 80°C and dried for 3h to 5h, then mixed with deionized water and ultrasonically treated for 1h to 2h, and the mixture is centrifuged 3 to 5 times to drain the floating layer product in the suspension.

[0024] Step S3: Filter and dry the floating layer product of the mixed solution to obtain a sheet material. Specifically, the sheet material is prepared by filtering the floating layer product using a porous cellulose membrane, causing it to accumulate on the surface of the porous cellulose membrane; drying the porous cellulose membrane to obtain the sheet material on the surface of the porous cellulose membrane; and separating the two by slowly removing the porous cellulose membrane from the sheet material. During the preparation of the sheet material, the pore size of the porous cellulose membrane is 20 nm to 100 nm; the accumulation time is 8 to 10 hours; the drying temperature is 30°C to 50°C, the drying time is 3 to 5 days, and the drying is performed in a vacuum drying oven.

[0025] Furthermore, during filtration, the floating layer product is slowly and evenly poured onto a porous cellulose membrane with fixed edges and a suspended center. The membrane is then left to stand for 8-10 hours, allowing the solid phase product in the suspension to accumulate on the surface of the membrane. The thickness of the sheet material can be controlled by adjusting the volume of the raw material.

[0026] Step S4, depositing a metal film on the surface of the sheet material to obtain a flexoelectrochemical driving material; wherein the metal film includes a gold film, a silver film or a copper film.

[0027] Specifically, the sheet material is fixed in a vacuum of 1×10 -6 Torr~9×10 -6 In a Torr vacuum chamber, metal targets are placed face to face at a distance of 20cm to 50cm from the target. Garnet pulse laser is used to bombard the metal targets in the vacuum chamber 4,000 to 8,000 times, thereby forming metal element plasma plume in the vacuum chamber. The plasma plume is deposited on the surface of the sheet material to form a metal film. The thickness of the metal film is controlled by controlling the number of times the pulse laser bombards the metal target. Then, the sheet material coated with the metal film on one side is taken out, turned over and fixed in the same position in the vacuum chamber. The garnet pulse laser is used to bombard the metal target in the vacuum chamber again to ensure that the number of times the pulse laser bombards the metal target is exactly the same as the coating process before turning over. Then, the sheet material coated with the metal film on both sides is taken out, wherein the thickness ratio of the metal film to the sheet is 0.001 to 0.004, and a flexoelectrochemical driving material is obtained.

[0028] In this embodiment, under the action of a uniform electric field, cations (including but not limited to hydrogen ions, lithium ions, and sodium ions) in the aquatic environment are embedded in the flexo-electrochemical driving material obtained in this embodiment, and undergo electrochemical reactions with the cations to generate compounds with different atomic ratios. The atomic ratios change with the degree of electrochemical reaction, causing the atomic volume of the compounds to change, inducing mechanical changes in the flexo-electrochemical driving material and generating a driving function. In an atmospheric environment, by applying a non-uniform electric field, under the action of the electric field gradient, unevenly distributed stress is generated inside the flexo-electrochemical driving material, causing the flexo-electrochemical driving material to expand or contract locally, inducing overall deformation of the flexo-electrochemical driving material, and achieving a driving function. Therefore, the flexo-electrochemical driving material of this embodiment can achieve cross-domain operation inside and outside the atmosphere, and in acidic and alkaline aquatic environments.

[0029] Example 1 Step S1, such as Figure 2 As shown, 20 g of barium titanate powder was placed in 20 ml of 1.5 mol hexane butyl lithium solution and soaked in an argon environment for 24 h, and the solid phase product was leached out; Step S2: drying the solid product in a vacuum environment at 80°C for 24 hours, taking it out and naturally cooling it to room temperature; soaking and rinsing the cooled product in 40 ml of hexane for 10 minutes; drying the rinsed solid product in a vacuum environment at 80°C for 3 hours; mixing the dried solid product with deionized water in a mass ratio of 2:1, and ultrasonically treating it for 2 hours; centrifuging the mixture 5 times, and removing the floating layer product of the mixture.

[0030] Step S3: slowly and evenly pour the floating layer product onto a porous cellulose membrane with fixed edges and a suspended center and a pore size of 100 nm. Let it stand for 8 hours to allow the solid phase product in the suspension to accumulate on the surface of the porous cellulose membrane. Then transfer it to a vacuum drying oven and dry it at 50°C for 3 days. Then remove it from the vacuum drying oven and obtain a sheet material on the surface of the porous cellulose membrane. The two are separated to obtain a sheet material. Figure 3 As shown, the surface of the material is uniform and flat, the integrity is good, and the particle outline is clearly visible, indicating that the preparation effect meets the requirements.

[0031] Step S4, fix the sheet material in a vacuum of 9×10 -6In a vacuum chamber of Torr, a copper target is placed face to face at a distance of 50 cm from it, and a garnet pulse laser is used to bombard the copper target in the vacuum chamber 8000 times, thereby forming copper element plasma plume in the vacuum chamber, and the plasma plume is deposited on the surface of the sheet material to form a copper film. The thickness of the copper film is controlled by controlling the number of times the pulse laser bombards the copper target. Then, the sheet material coated with a copper film on one side is taken out, turned over and fixed in the same position in the vacuum chamber, and the copper target in the vacuum chamber is bombarded with a garnet pulse laser again, ensuring that the number of times the pulse laser bombards the copper target is exactly the same as the coating process before turning over. Then, the sheet material coated with copper films on both sides is taken out to obtain a flexural electrochemical driving material, whose structure is as shown in FIG. Figure 4 shown.

[0032] Example 2 Step S1, placing 15 g of tungsten disulfide powder in 15 ml of a 1.5 mol hexane-butyl lithium solution, soaking the solution in an argon atmosphere for 15 hours, and leaching the solid phase product; Step S2: drying the solid phase product in a vacuum environment at 70°C for 30 hours, taking it out and naturally cooling it to room temperature; soaking and rinsing the cooled product in 30 ml of hexane for 15 minutes; drying the rinsed solid phase product in a vacuum environment at 70°C for 4 hours; mixing the dried solid phase product with deionized water in a mass ratio of 2:1, and ultrasonically treating it for 1.5 hours; centrifuging the mixture 4 times, and removing the floating layer product of the mixture.

[0033] Step S3: slowly and evenly pour the floating layer product onto a porous cellulose film with a fixed edge, a suspended middle, and a pore size of 50 nm, and let it stand for 9 hours to allow the solid phase product in the suspension to accumulate on the surface of the porous cellulose film; and transfer it to a vacuum drying oven and dry it at a temperature of 40°C for 4 days. Then, take it out of the vacuum drying oven to obtain a sheet material on the surface of the porous cellulose film, and separate the two to obtain a sheet material.

[0034] Step S4, fix the sheet material in a vacuum of 6×10 -6 In Torr's vacuum chamber, a silver target was placed face to face at a distance of 30 cm from it, and a garnet pulse laser was used to bombard the silver target in the vacuum chamber 6,000 times, thereby forming a silver element plasma plume in the vacuum chamber. The plasma plume was deposited on the surface of the sheet material to form a silver film. The thickness of the silver film was controlled by controlling the number of times the pulse laser bombarded the silver target. Then, the sheet material coated with silver film on one side was taken out, turned over and fixed in the same position in the vacuum chamber. The silver target in the vacuum chamber was bombarded again with a garnet pulse laser to ensure that the number of times the pulse laser bombarded the silver target was exactly the same as the coating process before turning over. Then, the sheet material coated with silver film on both sides was taken out to obtain a flexoelectrochemical driving material.

[0035] Example 3 Step S1, placing 10 g of molybdenum disulfide powder in 10 ml ml of a 1.5 mol hexane butyl lithium solution, soaking it in an argon environment for 10 h, and leaching the solid phase product; Step S2: drying the solid phase product in a vacuum environment at 60°C for 36 hours, taking it out and naturally cooling it to room temperature; soaking and rinsing the cooled product in 20 ml of hexane for 20 minutes; drying the rinsed solid phase product in a vacuum environment at 60°C for 5 hours; mixing the dried solid phase product with deionized water in a mass ratio of 2:1, and ultrasonically treating it for 1 hour; centrifuging the mixture three times, and removing the floating layer product of the mixture.

[0036] Step S3: slowly and evenly pour the floating layer product onto a porous cellulose film with fixed edges and a suspended center and a pore size of 20 nm. Let it stand for 10 hours to allow the solid phase product in the suspension to accumulate on the surface of the porous cellulose film. Then transfer it to a vacuum drying oven and dry it at 30°C for 5 days. Then take it out of the vacuum drying oven to obtain a sheet material on the surface of the porous cellulose film. The two are separated to obtain a sheet material. The transmission electron microscopy image of the molybdenum disulfide sheet material is shown in FIG. Figure 5 As shown, its multi-layer stacking structure is clearly visible, the lamellar structure is complete and uniform, and has high integrity, indicating that the preparation process meets the requirements.

[0037] Step S4: fix the sheet material in a vacuum state of 1×10 -6 In Torr's vacuum chamber, a gold target was placed face to face at a distance of 20 cm from it, and a garnet pulse laser was used to bombard the gold target in the vacuum chamber 4,000 times, thereby forming a gold element plasma plume in the vacuum chamber. The plasma plume was deposited on the surface of the sheet material to form a gold film. The thickness of the gold film was controlled by controlling the number of times the pulse laser bombarded the gold target. Then, the sheet material coated with gold film on one side was taken out, turned over and fixed in the same position in the vacuum chamber. The gold target in the vacuum chamber was bombarded again with a garnet pulse laser to ensure that the number of times the pulse laser bombarded the gold target was exactly the same as the coating process before turning over. Then, the sheet material coated with gold film on both sides was taken out to obtain a flexural electrochemical driving material.

[0038] Example 4 Step S1, placing 16 g of tungsten disulfide powder in 12 ml of a 1.5 mol hexane-butyl lithium solution, soaking the solution in an argon atmosphere for 12 hours, and leaching the solid phase product; Step S2: drying the solid phase product in a vacuum environment at 75°C for 28 hours, taking it out and naturally cooling it to room temperature; soaking and rinsing the cooled product in 35 ml of hexane for 17 minutes; drying the rinsed solid phase product in a vacuum environment at 75°C for 3.5 hours; mixing the dried solid phase product with deionized water in a mass ratio of 2:1, and ultrasonically treating it for 1 hour; centrifuging the mixture three times, and removing the floating layer product of the mixture.

[0039] Step S3: slowly and evenly pour the floating layer product onto a porous cellulose film with a fixed edge, a suspended middle, and a pore size of 80 nm, and let it stand for 10 hours to allow the solid phase product in the suspension to accumulate on the surface of the porous cellulose film; and transfer it to a vacuum drying oven and dry it at a temperature of 35°C for 4 days. Then, take it out of the vacuum drying oven to obtain a sheet material on the surface of the porous cellulose film, and separate the two to obtain a sheet material.

[0040] Step S4: fix the sheet material in a vacuum state of 5×10 -6 In Torr's vacuum chamber, a copper target was placed face to face at a distance of 40 cm from it, and a garnet pulse laser was used to bombard the copper target in the vacuum chamber 5,000 times, thereby forming a copper element plasma plume in the vacuum chamber. The plasma plume was deposited on the surface of the sheet material to form a copper film. The thickness of the copper film was controlled by controlling the number of times the pulse laser bombarded the copper target. Then, the sheet material coated with a copper film on one side was taken out, turned over and fixed in the same position in the vacuum chamber. The copper target in the vacuum chamber was bombarded again with a garnet pulse laser to ensure that the number of times the pulse laser bombarded the copper target was exactly the same as the coating process before turning over. Then, the sheet material coated with copper film on both sides was taken out to obtain a flexural electrochemical driving material.

[0041] Example 5 Step S1, placing 12 g of molybdenum disulfide powder in 14 ml of a 1.5 mol hexane-butyl lithium solution and soaking the solution in an argon atmosphere for 20 h, and leaching the solid phase product; Step S2: drying the solid phase product in a vacuum environment at 65°C for 34 hours, taking it out and naturally cooling it to room temperature; soaking and rinsing the cooled product in 25 ml of hexane for 12 minutes; drying the rinsed solid phase product in a vacuum environment at 65°C for 4.5 hours; mixing the dried solid phase product with deionized water in a mass ratio of 2:1, and ultrasonically treating it for 2 hours; centrifuging the mixture four times, and removing the floating layer product of the mixture.

[0042] Step S3: slowly and evenly pour the floating layer product onto a porous cellulose film with a fixed edge, a suspended middle, and a pore size of 40 nm, and let it stand for 8 hours to allow the solid phase product in the suspension to accumulate on the surface of the porous cellulose film; and transfer it to a vacuum drying oven and dry it at a temperature of 45°C for 3 days. Then, take it out of the vacuum drying oven to obtain a sheet material on the surface of the porous cellulose film, and separate the two to obtain a sheet material.

[0043] Step S4: fix the sheet material in a vacuum state of 2×10 -6 In Torr's vacuum chamber, a silver target was placed face to face at a distance of 25 cm from it. The silver target in the vacuum chamber was bombarded with a garnet pulse laser 7,000 times, thereby forming a silver element plasma plume in the vacuum chamber. The plasma plume was deposited on the surface of the sheet material to form a silver film. The thickness of the silver film was controlled by controlling the number of times the pulse laser bombarded the silver target. Then, the sheet material coated with silver film on one side was taken out, turned over and fixed in the same position in the vacuum chamber. The silver target in the vacuum chamber was bombarded with a garnet pulse laser again to ensure that the number of times the pulse laser bombarded the silver target was exactly the same as the coating process before turning over. Then, the sheet material coated with silver film on both sides was taken out to obtain a flexoelectrochemical driving material.

[0044] A second embodiment of the present invention provides a flexo-electrochemical driving material, which is obtained by the above-mentioned method for preparing the flexo-electrochemical driving material.

[0045] The flexural electrochemical driving material, under the action of a uniform electric field, that is, in an acidic or alkaline water environment, converts electrical energy into mechanical energy through an electrochemical reaction to achieve driving; and under the action of an electric field gradient, that is, in a non-liquid environment (inside and outside the atmosphere), generates driving deformation based on the inverse flexoelectric response; thereby achieving cross-domain operation inside and outside the atmosphere, in acidic and alkaline water environments. Therefore, the flexural electrochemical driving material of this embodiment can achieve low-precision, slow-response, and long-stroke driving functions based on electrochemical drive, and achieve high-precision, fast-response driving functions through flexoelectric drive. Furthermore, the driving mode can be quickly changed by controlling the uniformity of the electric field.

[0046] The third embodiment of the present invention provides an application of the above-mentioned flexural electrochemical driving material in a driving mechanism. The flexural electrochemical driving material of the present invention is applied to a driving mechanism, and specifically, the driving function can be realized based on a multi-layer composite cantilever beam structure, with the number of layers being no less than 3 layers. Specifically, the flexural electrochemical driving material of the present invention can be used as the inner layer, and the outer layer is a metal film, and is not restricted by the structural symmetry along the thickness direction; forward and reverse cantilever beam bending deformations can be generated. Its driving mechanism originates from the coupling of the flexoelectric effect and the electrochemical driving effect, and uses the strain gradient to break the inversion symmetry of the driving material, induce electric polarization, and form a flexoelectric built-in electric field. Based on the flexoelectric built-in electric field, the electrochemical reaction rate is accelerated, the electrochemical reaction activity of the driving material is enhanced, and the response rate of the driving deformation is increased. For example, the driving mechanism may include an aircraft driving mechanism, a solid attitude and trajectory control engine driving mechanism, and a multi-habitat unmanned robot driving component.

[0047] The above are only preferred embodiments of the present application and do not limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made using the contents of the present application specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A method for preparing a flexoelectrochemical driving material, characterized in that: include: Soaking the raw material in a butyl lithium solution in hexane and leaching the solid phase product; wherein the raw material has intrinsic electrochemical coupling characteristics and electromechanical coupling characteristics; mixing the solid phase product with deionized water to obtain a mixed solution; filtering and drying the floating layer product of the mixed solution to obtain a sheet material; A metal film is deposited on the surface of the sheet material to obtain a flexo-electrochemical driving material; wherein the metal film includes a gold film, a silver film or a copper film.

2. The method for preparing a flexoelectrochemical driving material according to claim 1, characterized in that: The raw materials include barium titanate or transition metal sulfide powder.

3. The method for preparing a flexoelectrochemical driving material according to claim 2, characterized in that: The transition metal sulfide powder includes molybdenum disulfide or tungsten disulfide.

4. The method for preparing a flexoelectrochemical driving material according to claim 2, characterized in that: The mass of the barium titanate or transition metal sulfide powder is 10 g to 20 g, the volume of the hexane butyl lithium solution is 10 ml to 20 ml, and the immersion time is 10 h to 24 h.

5. The method for preparing a flexoelectrochemical driving material according to claim 1, characterized in that: The preparation method of the sheet material is as follows: filtering the floating layer product by using a porous cellulose membrane so that the floating layer product accumulates on the surface of the porous cellulose membrane; The porous cellulose film is dried to obtain a sheet material on the surface of the porous cellulose film, and the two are separated.

6. The method for preparing a flexoelectrochemical driving material according to claim 5, characterized in that: During the preparation of the sheet material, the pore size of the porous cellulose film is 20nm-100nm; the stacking time is 8h-10h; the drying temperature is 30°C-50°C, and the drying time is 3 days-5 days.

7. The method for preparing a flexoelectrochemical driving material according to claim 1, characterized in that: Before mixing the solid phase product with deionized water, the solid phase product is dried and washed; The drying process is as follows: drying the solid phase product in a vacuum environment at 60°C to 80°C for 24h to 36h; The cleaning process is as follows: the dried product is placed in 20ml~40ml hexane and soaked for 10min~20min; The mixing mass ratio of the solid phase product to deionized water is 2:1, and the mixing time is 1 h to 2 h.

8. A flexoelectrochemical driving material, characterized in that: The material is obtained by the preparation method of the flexoelectrochemical driving material according to any one of claims 1 to 7.

9. The flexoelectrochemical driving material according to claim 8, characterized in that The flexoelectrochemical driving material converts electrical energy into mechanical energy through electrochemical reaction under the action of a uniform electric field to achieve driving; and generates driving deformation based on the inverse flexoelectric response under the action of the electric field gradient.

10. Use of the flexo-electrochemical driving material according to claim 8 in a driving mechanism.

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