An electrode material with electronic conductivity and interface adhesion and a preparation method thereof

Abstract

The application discloses an electrode material with electronic conductivity and interface adhesion and a preparation method thereof, relates to the field of electronic interfaces, and simultaneously obtains the electrode material with interface adhesion and interface conductivity by adopting a phase separation method. The electrode material is formed by the spontaneous phase separation process of the conductive phase and the adhesion phase in the mixed phase of the water phase and the organic phase due to the solubility difference of the conductive phase and the adhesion phase in the water phase and the organic phase, and the micro interpenetrating structure is formed. After drying, the conductive phase and the adhesion phase can be reasonably distributed in submicron scale, the final material exhibits the intrinsic electronic conductivity of 10-120 S / cm, and excellent adhesion is exhibited, for example, the interface peeling energy with the skin can be 200-600 J / m 2 The material with electronic conductivity and interface adhesion can be used as the interface material of the skin electrode and applied to the applications of stabilizing and enhancing the electrophysiological monitoring signal and improving the electric stimulation efficiency.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of electronic interface, in particular to an electrode material with electronic conductivity and interface adhesion and a preparation method thereof. BACKGROUND

[0002] At present, electrode materials are used in human-computer interaction and health monitoring for physiological electrical signal monitoring such as electrocardiogram, electromyogram and electroencephalogram. These scenarios require electrode materials with high conductivity and good adhesion. For example, the monitoring of electrophysiological signals often requires electrode materials to ensure sufficient interface adhesion to prevent motion artifacts and signal drift caused by interface separation, and also requires certain conductivity to reduce interface impedance and obtain signal gain. For another example, in electrical stimulation therapy, electrode materials also need to ensure excellent electrical conductivity to reduce energy consumption, and also need to be closely adhered to achieve stable electrical stimulation under dynamic conditions. Therefore, in the era of smart medical treatment and human-computer interaction, designing an electrode material with adhesion and conductivity has high application value.

[0003] However, the adhesion and conductivity of the electrode interface are a mutually competitive relationship. John A. Rogers, one of the pioneers in the field of flexible electronics, developed a composite electrode based on metal and adhesive backing as early as 2019. They found that when the conductive filling decreases, the adhesion increases, and the interface impedance rises. When the conductive filling rises, the interface impedance drops, but the adhesion weakens. Some researchers also prepared conductive adhesive by mixing conductive fillers (such as carbon nanotubes and silver nanowires) with adhesive glue. However, based on percolation theory, the conductive component needs to reach a certain percolation threshold to obtain good conductivity (<1 S / cm), and too high non-adhesive conductive content will greatly reduce the adhesion performance of the glue (<100 J / m 2 ). The team of Zhou Xuechang from Shenzhen University prepared a conductive adhesive with good mechanical properties by compounding conductive polymer poly(3,4-ethylenedioxythiophene): polystyrene sulfonic acid and supramolecular polyvinyl alcohol material. However, the clustering of conductive polymers also leads to the same problem of incompatibility between adhesion and conductivity (10 S / cm maintains 120 J / m 2 of skin interface adhesion energy).

[0004] The competition between conductivity and adhesion comes from the effective area competition of these two properties at the interface. If the competition between these two materials at the interface can be balanced, or a compatible interface conductivity and adhesion can be obtained, in addition, the conductive phase also needs to be effectively connected internally, so as to obtain better overall conductivity. Therefore, how to design an electrode material that takes into account conductivity and adhesion is one of the solutions to the current unstable problem of electrode-biological tissue adhesion.

[0005] In the polymer research, there is a micro zone bicontinuous phase separation structure, that is, two polymers form continuous phases penetrating each other, which can form a uniform two-phase distribution on the interface, and the internal polymer also maintains effective penetration. Therefore, the present application will design a bicontinuous phase separation polymer material, and finally design an electrode material with conductivity and adhesion, and a preparation method thereof, to solve the current unstable problem of electrode-biological tissue adhesion. SUMMARY

[0006] Therefore, in order to obtain an electrode material with conductivity and adhesion, according to the micro zone bicontinuous phase separation structure in the polymer research, that is, two polymers form continuous phases penetrating each other, which can form a uniform two-phase distribution on the interface, and the internal polymer also maintains effective penetration, the purpose of the present application is to provide an electrode material with electronic conductivity and interface adhesion and a preparation method thereof, which is a micro bicontinuous phase separation structure of conductive phase and adhesive phase, finally obtains a uniform distribution of surface interface conductive phase and adhesive phase, and the internal continuous conductive network can make the material have excellent electronic conductivity, and the electrode material with conductivity and adhesion can be used for physiological electrical signal acquisition, epidermal or neural electrical stimulation and other applications, and is one of the most important basic materials in the field of human-computer interaction, intelligent medical treatment and the like.

[0007] In order to achieve the above purpose, the present application provides the following technical scheme:

[0008] In a first aspect, the present application provides an electrode material with electronic conductivity and interface adhesion, which comprises a conductive phase and an adhesive phase; the conductive phase is dispersed in an aqueous phase, the adhesive phase is dispersed in an organic phase, and the conductive phase and the adhesive phase form a submicron bicontinuous phase separation structure through phase separation, so as to achieve reasonable distribution of two phases on the interface.

[0009] The present application utilizes the solubility difference of the conductive phase and the adhesive phase in the aqueous phase and the organic phase, and the self-phase separation process occurs in the mixed phase of the aqueous phase and the organic phase, forming a micro interpenetrating structure. After drying, the conductive phase and the adhesive phase can be reasonably distributed at a submicron scale, and finally the material exhibits an intrinsic electronic conductivity of 10-120 S / cm, and exhibits excellent adhesion, such as an interfacial peeling energy of 200-600 J / m 2 The electrode material with electronic conductivity and interface adhesion obtained by the present application can be used as an interface material of a skin electrode, and can be used for stable and enhanced electrophysiological monitoring signals, electrical stimulation efficiency and other applications.

[0010] As a further scheme of the present application, the conductive phase is a conductive polymer with water dispersion ability and soluble in water, which has good electronic conductivity.

[0011] As a further scheme of the present application, the conductive phase is 3,4-ethylenedioxythiophene: polystyrene sulfonic acid (PEDOT:PSS) as a basic material, and is compounded with any one or more of conductive nanoparticles, nanowires, water-dispersed graphene, and carbon nanotubes to prepare a water-phase dispersed material.

[0012] As a further scheme of the present application, the adhesive phase has intrinsic interfacial adhesion, and is any one or more of polyacrylate, acrylic acid-acrylate copolymer, and waterborne polyurethane.

[0013] As a further scheme of the present application, the adhesive phase is dissolved by a low-boiling organic solvent, and the low-boiling organic solvent is ethanol, methanol, or acetone that can be mutually soluble with water.

[0014] As a further scheme of the present application, when the conductive phase and the adhesive phase form a sub-micron bi-continuous phase separation structure through phase separation, the conductive phase is dispersed in a water phase, and the adhesive phase is dispersed in an organic phase, the conductive phase is added to the adhesive phase system at a solid content ratio of 1% to 10%, and the mass ratio of the conductive phase to the adhesive phase is 1:1 to 10:1, and dynamic mixing is performed to obtain a uniform two-phase dispersion system.

[0015] As a further scheme of the present application, when dynamic mixing is performed, one or more of stirring and shearing is used for dynamic mixing.

[0016] As a further scheme of the present application, the electrode material with electronic conductivity and interfacial adhesion further comprises a small-molecule plasticizer or a polar substance with a total solid content of 0.1% to 10% to adjust the electrical conductivity, and the small-molecule plasticizer or the polar substance is one or more of dimethyl sulfoxide, ethylene glycol, and ionic liquid. Through the mixed system of the small-molecule plasticizer or the polar substance, the electrical conductivity of the electrode material can be effectively optimized, and good adhesion can be maintained.

[0017] As a further scheme of the present application, the electrode material with electronic conductivity and interfacial adhesion further comprises adjusting the electrical conductivity and the adhesion performance through annealing heat treatment. Annealing can help adjust the distribution state of the conductive phase and the adhesive phase, and enhance the overall performance of the material.

[0018] As a further scheme of the present application, the electrode material with electronic conductivity and interfacial adhesion can be shaped by laser cutting, liquid printing, and the like, and is adhered to the surface of other materials to form a multi-layer structure. The electrode material is different from other electrode materials that are not conductive or not adhesive. The electrode material can achieve an intrinsic conductivity of 10-120 S / cm while achieving a high adhesion capacity, such as an interfacial adhesion capacity with the skin of >200 J / m 2 .

[0019] In a second aspect, the present application further provides a preparation method of an electrode material with electronic conductivity and interface adhesion, comprising the following steps:

[0020] Preparation of the adhesion phase material: selecting a commercially available adhesion glue or a self-synthesized adhesion glue, and obtaining an adhesion phase solution by dissolution or polymerization reaction;

[0021] Preparation of the conductive phase material: selecting a conductive polymer and mixing with a small molecule plasticizer, a polar substance or water to adjust the conductivity, and obtaining a conductive phase solution;

[0022] Mixing the adhesion phase solution and the conductive phase solution in proportion until the overall solution becomes a blue-white uniform dispersion liquid, forming a phase-separated mixed solution;

[0023] Pouring the mixed solution into a mold, drying and annealing to obtain a conductive and adhesive electrode with electronic conductivity and interface adhesion.

[0024] As a further scheme of the present application, the preparation method of the electrode material with electronic conductivity and interface adhesion further comprises: processing the electrode material into a desired shape, or adhering it to the surface of other substrates to form a multilayer structure or apply it to the skin surface.

[0025] As a further scheme of the present application, the adhesion phase material is a polyacrylate adhesive, a polyurethane adhesive, or a self-synthesized polyacrylic acid-isobornyl acrylate.

[0026] As a further scheme of the present application, the solid content concentration of the adhesion phase solution is 3%-20%.

[0027] As a further scheme of the present application, the conductive phase material is a conductive polymer PEDOT:PSS, and the conductive polymer is mixed with a small molecule plasticizer to adjust the conductivity.

[0028] As a further scheme of the present application, the mass ratio of the PEDOT:PSS and the small molecule plasticizer is 20:1 to 30:1.

[0029] As a further scheme of the present application, the temperature of the annealing process is 100-110℃, and the duration is 5-20 minutes.

[0030] As a further scheme of the present application, the electrode material can be processed in shape by laser cutting, liquid printing or extrusion printing, and the electrode material can be applied in the fields of skin electrodes, wearable electronic devices, electrophysiological monitoring, artificial electronic skin, etc.

[0031] In the above technical solution, the electrode material with electronic conductivity and interface adhesion and the preparation method thereof provided by the present application have the following beneficial effects:

[0032] The electrode material provided by the application is prepared by using the phase separation process formed spontaneously by the difference in solubility of the polymer in water and organic solvents, realizing the micro-nano structure distribution of the micro conductive phase and the adhesive phase. 2 The electrode material provided by the application can simultaneously exhibit high electronic conductivity (the conductivity should be > 10 S / cm) and high adhesion (the interfacial adhesion can reach > 200 J / m

[0033] These aspects or other aspects of the application will be more apparent in the following description of the embodiments. It should be understood that the above general description and the following detailed description are only exemplary and explanatory, and are not limiting to the application. BRIEF DESCRIPTION OF DRAWINGS

[0034] In order to more clearly illustrate the technical solutions of the embodiments of the present application or the prior art, the drawings needed in the embodiments will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments described in the present application, and other drawings can also be obtained by those skilled in the art according to these drawings.

[0035] Figure 1 The schematic diagram of the principle of the electrode material with electronic conductivity and interfacial adhesion of the embodiments of the present application.

[0036] Figure 2 The phase separation model structure diagram of the electrode material with electronic conductivity and interfacial adhesion of the embodiments of the present application.

[0037] Figure 3 The phase separation transmission electron microscope characterization result diagram of the electrode material with electronic conductivity and interfacial adhesion of the embodiments of the present application.

[0038] Figure 4 The phase separation conductive atomic force microscope characterization result diagram of the electrode material with electronic conductivity and interfacial adhesion of the embodiments of the present application.

[0039] Figure 5 The picture of the phase separation conductive adhesive gel prepared by the present application and the schematic diagram of the state photo of the adhesive to the epidermis.

[0040] Figure 6 The result diagram of the conductivity change with the conductive phase content in the phase separation conductive adhesive gel of the present application.

[0041] Figure 7 The comparative diagram of the interfacial adhesion change with the conductive phase content in the phase separation conductive adhesive gel of the present application.

[0042] Figure 8 The interface impedance test results of the conductive adhesive gel prepared by the present application using 10% solid content conductive phase and commercial gel electrode, copper electrode on the skin are compared.

[0043] Figure 9 The photo of the conductive adhesive gel with shape prepared by the present application in a printing manner adhering to a release film. DETAILED DESCRIPTION

[0044] In order to make the technical problems, technical solutions and beneficial effects to be solved in the present application more clear and explicit, the present application will be further described in detail below in combination with embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and do not limit the present application.

[0045] In some of the descriptions of the specification and claims of the present application and the above-described drawings, a plurality of operations appearing in a specific order are included, but it should be clearly understood that these operations can be executed or performed in parallel without the order in which they appear in the text, and the serial numbers of the operations, such as 101, 102, etc., are only used to distinguish different operations, and the serial numbers themselves do not represent any execution order. In addition, these processes can include more or fewer operations, and the operations can be executed in sequence or in parallel. It should be noted that the descriptions of "first", "second", etc. in the text are used to distinguish different messages, devices, modules, etc., and do not represent the order of precedence. Also, "first" and "second" are different types.

[0046] The technical solutions in the exemplary embodiments of the present application will be described clearly and completely below in combination with the drawings in the exemplary embodiments of the present application. Obviously, the described exemplary embodiments are only a part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0047] In order to ensure the conductive and adhesive requirements of the electrode in the application scenarios of electrophysiological signal monitoring and electrical stimulation treatment, the present application proposes an electrode material with electronic conductivity and adhesion and a preparation method thereof, aiming to realize high electrical conductivity of the electrode while maintaining high interfacial adhesion. Referring to Figure 1 The present application is inspired by the dual continuous phase of material science, and by introducing the basic principle of the difference in solubility of the conductive phase and the adhesive phase in water and organic phases, a micro-nano phase separation structure is prepared through the spontaneous phase separation process during the fusion of water and organic phases. Finally, high electrical conductivity and excellent interfacial adhesion performance are exhibited.

[0048] The electrode material with electronic conductivity and adhesion of the present application greatly reduces the high conductive filler content required by the percolation threshold of traditional conductive fillers through a double continuous phase separation structure, and only needs to add 10% or less of the conductive phase to achieve high conductivity. In addition, the present application can further improve the conductivity by introducing some small molecule plasticizers, such as dimethyl sulfoxide, ionic liquid, etc. When the material is applied to the electrode-skin interface, it exhibits extremely low interface impedance, greater charge injection capacity than commercial electrodes, and other excellent properties, showing broad application prospects in human-computer interaction, intelligent medical treatment, etc.

[0049] Specifically, referring to the model diagram and the characterization diagram shown in Figures 2 to 5 , it can be seen that Figures 2 to 4 By using the microstructure seen by the transmission electron microscope and the surface conductive phase distribution seen by the conductive atomic force microscope, it can be imagined that the conductive adhesive film prepared by the present application has a two-phase continuous phase separation structure. Figure 5 For the prepared phase separation film morphology, it can be seen that the film prepared by the present application has good flexibility and better adhesion on the skin.

[0050] Referring to Figure 6 and Figure 7 , it can be seen that as the conductive phase increases and the interface conductive content increases, the conductivity of the phase separation conductive adhesive can increase from 60 S / cm to 120 S / cm, but the interface adhesion will decrease from 650 N / m to 150 N / m. In some embodiments, referring to Figure 8 , the phase separation conductive adhesive as a skin electrode can obtain lower interface impedance results compared with commercial gel electrodes and copper electrodes.

[0051] Referring to Figure 9 , the electrode precursor solution can be prepared into a specific shape of adhesive conductive adhesive by printing and the like.

[0052] The method for preparing the electrode material with electronic conductivity and adhesion of the present application will be further described below in combination with specific embodiments:

[0053] Embodiment 1

[0054] The present embodiment provides an electrode material with electronic conductivity and adhesion, and the electrode material of the present embodiment is prepared by the following steps:

[0055] Step S10: Preparation of the adhesive phase:

[0056] First, the purchased commercial polyacrylate adhesive solid is dissolved at a solid content of 10%, and the solvent is selected as ethanol. The solution is stirred and dissolved at a heating temperature of 40°C, and is ready for use.

[0057] Step S20: Preparation of conductive phase:

[0058] The purchased conductive polymer solution (PEDOT:PSS aqueous solution 1% solid content) is mixed with the small molecule plasticizer dimethyl sulfoxide as a precursor, and stirred according to the mass ratio of PEDOT:PSS solution: dimethyl sulfoxide solution 20:1, ready for use.

[0059] Step S30: Phase separation:

[0060] Take 1 g of the above-mentioned ethanol-soluble adhesive phase solution and stir quickly, and add 1 g of the conductive phase solution (solid content of the conductive phase is 1%) drop by drop during stirring, the mass ratio of the conductive phase to the adhesive phase is 1:1, until the whole solution becomes a blue-white uniform dispersion. Then continue stirring for 10 minutes.

[0061] Step S40: Drying of phase separation film:

[0062] Pour the above-mentioned solution into a polytetrafluoroethylene mold and dry naturally, wait for 1 hour, then put it into a 105°C oven for annealing for 10 minutes. After annealing, cool naturally, and the conductive adhesive electrode is prepared.

[0063] Example 2

[0064] The electrode material of the present embodiment has both electronic conductivity and adhesion, and is prepared by the following steps:

[0065] Step S10: Preparation of self-synthesized adhesive phase:

[0066] Select 1 g of acrylic acid monomer, 3 g of isobornyl acrylate, and 2 g of dimethylformamide, and add 0.01 g of azobis isobutyl cyanide thermal initiator, heat in a 75°C oven for 24 hours, then take out the polymerized adhesive and wash with anhydrous ether and dry to obtain a polyacrylic acid-isobornyl acrylate adhesive material. Dissolve the above-mentioned polyacrylic acid-isobornyl acrylate adhesive material in methanol to form a 3% solid content concentration adhesive organic solution.

[0067] Step S20: Preparation of conductive phase:

[0068] The purchased conductive polymer solution (PEDOT:PSS aqueous solution 1% solid content) is mixed with the small molecule ionic liquid 1-carboxymethyl-3-methyl imidazole chloride as a precursor, and stirred according to the mass ratio of PEDOT:PSS solution: 1-carboxymethyl-3-methyl imidazole chloride 20:1, ready for use.

[0069] Step S30: Preparation of phase separation gel:

[0070] Take 1 g of the above ethanol dissolved adhesive phase solution for rapid stirring, and add the conductive phase solution 1 g (the solid content of the conductive phase is 1% of the conductive phase + adhesive phase) drop by drop during stirring, the mass ratio of the conductive phase to the adhesive phase is 1:1, until the whole solution becomes a blue-white uniform dispersion. Then continue stirring for 10 minutes. Pour the above solution into a polytetrafluoroethylene mold for natural drying, wait for 1 hour, then put it into a 105°C oven for annealing for 10 minutes. After annealing, cool naturally to prepare a conductive adhesive electrode Figure 5

[0071] Example 3

[0072] This embodiment provides an electrode material with electronic conductivity and adhesion. The electrode material of this embodiment is prepared by the following steps:

[0073] Step S10: Adhesive phase preparation:

[0074] First, select a commercial water-soluble polyurethane adhesive, dry it in a 60°C oven to remove water, and then dissolve the dried solid in ethanol.

[0075] Second, select 1 g of acrylic monomer and 3 g of isobornyl acrylate, dissolve them in 2 g of dimethylformamide, and add 0.01 g of azobisisobutyronitrile thermal initiator. After heating in a 75°C oven for 24 hours, take out the polymerized adhesive, wash and dry it with anhydrous diethyl ether to obtain a polyacrylic acid-isobornyl acrylate adhesive solid material.

[0076] Finally, dissolve the above water-based polyurethane solid and polyacrylic acid-isobornyl acrylate solid material in ethanol at a mass ratio of 3:1 to form a 3% solid content concentration adhesive organic solution.

[0077] Step S20: Conductive phase preparation:

[0078] Mix the purchased conductive polymer solution (PEDOT:PSS aqueous solution 1% solid content) with ethylene glycol as a precursor, and stir according to the mass ratio of PEDOT:PSS solution to ethylene glycol of 30:1, ready for use.

[0079] Step S30: Preparation of phase separation glue:

[0080] ​Take four 1g of the above ethanol dissolved in the adhesion phase solution for rapid stirring, and add 1g, 1.5g, 2g and 2.5g of conductive phase solution to the four solutions respectively drop by drop during stirring, forming conductive phase solid content of 10%, 15%, 20% and 25% respectively, until the whole solution becomes a blue-white uniform dispersion. Then continue stirring for 10 minutes. Pour the above solution into a polytetrafluoroethylene mold for natural drying, wait for 1 hour, and then put it into a 105°C oven for annealing for 10 minutes. After annealing, cool naturally to prepare four kinds of conductive adhesion electrodes with different conductive phase contents Figure 6 and Figure 7 ).

[0081] Example 4

[0082] The present embodiment provides an electrode material with electronic conductivity and adhesion. The electrode material of the present embodiment is prepared by the following steps:

[0083] Step S10: Adhesion phase preparation:

[0084] First, a commercial water-soluble polyurethane adhesive is selected, dried in a 60°C oven to remove water, and the dried solid is re-dissolved in ethanol.

[0085] Second, 1g of acrylic monomer and 3g of isobornyl acrylate are dissolved in 2g of dimethylformamide, and 0.01g of azobisisobutyronitrile thermal initiator is added. After heating in a 75°C oven for 24 hours, the polymerized adhesive is taken out, washed with anhydrous diethyl ether, and dried to obtain a polyacrylic acid-isobornyl acrylate adhesive solid material.

[0086] Finally, the above water-based polyurethane solid and polyacrylic acid-isobornyl acrylate solid material are dissolved in ethanol at a mass ratio of 3:1 to form a 20% solid content concentration of adhesive organic solution.

[0087] Step S20: Conductive phase preparation:

[0088] The purchased conductive polymer PEDOT:PSS solid is dispersed with water, and a high-concentration conductive phase with a concentration of 5% is formed by using a high-speed shearing machine to disperse PEDOT:PSS in water.

[0089] Step S30: Preparation of phase separation glue:

[0090] Take 10 g of the above-mentioned ethanol-soluble adhesive phase solution for high-speed shearing stirring, and add 0.4 g of the conductive phase solution drop by drop (the solid content of the conductive phase to the conductive phase + adhesive phase is 1%) during the stirring process, the mass ratio of the conductive phase to the adhesive phase is 10:1, until the whole solution becomes a blue-white high-concentration dispersion liquid. The above-mentioned solution is extruded into an extrusion needle cylinder, and a certain shape of the adherable electrode is drawn on the release film by using the extrusion printing method. The extruded material is preliminarily dried at 60°C, and then annealed at 105°C.

[0091] The electrode material provided by the application is prepared by using the self-forming phase separation process of the difference in solubility of the polymer in water and organic solvents, realizing the micro-nano structure distribution of the micro conductive phase and the adhesive phase. Secondly, the two-phase prepared by the method is continuous and uniform, and does not need to consider the too high conductivity filling characteristics of the percolation threshold requirement, and can achieve high electronic conductivity at a lower conductive phase content. Finally, the material can simultaneously exhibit high electronic conductivity (the conductivity should be >10 S / cm) and high adhesion (the skin interface adhesion energy can reach >200 J / m 2 ), which is incomparable to the traditional electrode material.

[0092] The above only describes the preferred embodiments of the application and is not intended to limit the application. Any modification, equivalent replacement and improvement made within the spirit and principle of the application shall be included in the protection scope of the application.

Claims

1. An electrode material with both electronic conductivity and interfacial adhesion, characterized in that, The electrode material comprises a conductive phase and an adhesive phase; the conductive phase is dispersed in the aqueous phase, and the adhesive phase is dispersed in the organic phase; the conductive phase and the adhesive phase form a sub-micron bi-continuous phase separation structure through phase separation; wherein, when the conductive phase and the adhesive phase form a sub-micron bi-continuous phase separation structure through phase separation, the conductive phase is added to the adhesive phase system in a proportion of 1%-10% solid content, and the mass ratio of the conductive phase to the adhesive phase is 1:1 to 10:1, and dynamic mixing is carried out to obtain a uniform two-phase dispersion system; the conductive phase is a conductive polymer that has water dispersion capability and is soluble in water, and the adhesive phase has intrinsic interfacial adhesion properties.

2. The electrode material with both electronic conductivity and interfacial adhesion according to claim 1, wherein, The conductive phase is poly(3,4-ethylenedioxythiophene):polystyrene sulfonic acid as a basic material, and is compounded with any one or more of conductive nanoparticles, nanowires, water-dispersible graphene, and carbon nanotubes to prepare a water-dispersible material.

3. The electrode material with both electronic conductivity and interfacial adhesion according to claim 1, wherein, The adhesive phase is any one or more of polyacrylate, acrylic acid-acrylate copolymer, and water-based polyurethane in combination.

4. The electrode material with both electronic conductivity and interfacial adhesion according to claim 3, wherein, The adhesive phase is dissolved by a low-boiling organic solvent, and the low-boiling organic solvent is ethanol, methanol, or acetone that is miscible with water.

5. The electrode material with both electronic conductivity and interfacial adhesion according to any one of claims 1-4, characterized in that, The electrode material with both electronic conductivity and interfacial adhesion further comprises a small molecule plasticizer or a polar substance with a total solid content of 0.1%-10% to adjust the electrical conductivity, and the small molecule plasticizer or the polar substance is one or a mixed system of dimethyl sulfoxide, ethylene glycol, and ionic liquid.

6. The electrode material with both electronic conductivity and interfacial adhesion according to any one of claims 1-4, wherein, The electrode material with both electronic conductivity and interfacial adhesion further comprises adjusting the electrical conductivity and adhesion properties through annealing heat treatment.

7. The electrode material with both electronic conductivity and interfacial adhesion according to claim 5, wherein, The electrical conductivity of the electrode material ranges from 10 S / cm to 120 S / cm, and the interfacial peeling energy with the skin is greater than 200 J / m².

8. A method for preparing an electrode material with both electronic conductivity and interfacial adhesion, characterized in that, A method for preparing the electrode material with both electronic conductivity and interfacial adhesion as claimed in any one of claims 1-7 comprises the following steps: Preparation of adhesive phase material: selecting a commercially available adhesive or self-synthesized adhesive, and obtaining an adhesive phase system through dissolution or polymerization reaction; Preparation of conductive phase material: selecting a conductive polymer mixed with water, a small molecule plasticizer, or a polar substance to adjust the electrical conductivity, and obtaining a conductive phase solution; Adding the conductive phase to the adhesive phase system in a proportion of 1%-10% solid content until the overall solution becomes a blue-white uniform dispersion liquid, forming a phase-separated mixed solution; Pouring the mixed solution into a mold, drying, and annealing to obtain a conductive adhesive electrode with electronic conductivity and interfacial adhesion.

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