A friction nano-electricity generating fabric and its application

Abstract

The present invention discloses a friction nano-electricity generating fabric and its application, belonging to the technical field of functional textile fabrics and friction nano-generators. The present invention is based on the re-organization design of woven fabrics and adopts a specific yarn configuration so that one side of the fabric is functionalized as an electrode and the other side acts as a dielectric material. When the dielectric material surfaces of two layers of fabric come into contact and then separate, based on the principle of friction nano-generators, friction charge transfer occurs between the interfaces, and electrons achieve transitions between the two, thereby generating a potential difference and current between the electrode materials on both sides, realizing the conversion of mechanical energy into electrical energy.

Description

Technical Field

[0001] The invention relates to a friction nano-generator fabric and application thereof, belonging to the technical field of functional textile fabrics and friction nano-generators. Background Art

[0002] Triboelectric Nanogenerator (TENG) is an emerging energy capture technology that converts mechanical energy into electrical energy using the triboelectric effect and charge induction effect. However, most current triboelectric nanogenerators rely on rigid materials, which limits their application in flexible and wearable devices.

[0003] Existing triboelectric nanogenerators are mostly based on hard materials, such as metals and polymer films. These materials are prone to failure under dynamic deformation conditions such as bending and stretching, and it is difficult to meet the needs of flexible electronic devices. Although some studies have begun to explore the application of flexible materials in TENG, most of these flexible TENGs have problems such as limited material selection, complex manufacturing process and low power generation efficiency. Existing flexible TENGs mostly use a single polymer material, such as polydimethylsiloxane (PDMS), polyvinylidene fluoride (PVDF), etc. The material selection is relatively single and it is difficult to meet the needs of diversified applications. The manufacturing process of flexible TENG usually involves complex micro-nanostructure manufacturing processes, such as etching and deposition, which are not only costly, but also difficult to achieve large-scale production. In addition, flexible TENGs are prone to structural relaxation during dynamic deformation, which reduces the efficiency of triboelectric charge transfer and leads to low overall power generation efficiency.

[0004] To overcome the above problems, some researchers have tried to integrate friction nanogenerator technology into fabrics, using the flexibility and diversity of fabrics to improve the wearability and application range of TENG. Fabric-based friction nanogenerators (Fabric-based TENG) achieve flexible and wearable friction nanogenerator power generation functions by weaving conductive yarns and dielectric yarns into fabrics. However, the existing fabric-based TENG still has shortcomings in material selection, weaving process and power generation efficiency, which are specifically manifested in the selection of conductive yarns and dielectric yarns, the complexity of weaving process, power generation efficiency and durability.

[0005] Existing fabric-based TENGs mostly use conductive polymer yarns and conventional yarns, but these materials perform generally in terms of triboelectric effect and charge transfer efficiency, making it difficult to achieve efficient power generation. For example, in Chinese patent CN108796755B, composite yarns containing conductive inner cores are used as warps and wefts to obtain power generation fabrics through existing textile technology. Since the outer material of the composite yarn and the conductive inner core are wrapped in a winding manner, the preparation process is very complicated, and composite yarns containing filament conductive inner cores are rarely reported at home and abroad. Moreover, the conductive inner core of such yarns will randomly emerge on the surface of the outer material, resulting in poor coating of the metal wire, which in turn affects its charge collection efficiency and triboelectric effect. Moreover, the elasticity of such yarns is poor, and it is difficult to withstand the stretching and impact of open weft insertion on the warp yarn during its manufacturing process, which will further cause its conductive inner core to emerge on the surface of the outer material. Existing fabric-based TENGs mostly use complex weaving processes, such as multi-layer weaving, alternating weaving, etc. These processes not only increase the manufacturing cost, but also limit the feasibility of large-scale production. During dynamic use of existing fabric-based TENG, triboelectric charge is easily lost due to slippage and relaxation between fibers, resulting in low power generation efficiency and durability.

[0006] Despite the above problems, some important progress has been made in the research of fabric-based friction nanogenerators. For example, some researchers have tried to use new conductive materials, such as graphene yarns, carbon nanotube yarns, etc., which have excellent conductivity and flexibility, and significantly improve the power generation efficiency of TENG. By optimizing the structure of the fabric, such as using double-layer tissues and multi-layer composite structures, researchers have improved the transfer efficiency of friction charges and the durability of the fabric. Fabric-based TENG has been successfully applied to wearable electronic devices, smart clothing, self-powered sensors and other fields, showing a wide range of application prospects.

[0007] However, most of these research results remain in the laboratory stage, and there are still many challenges in practical application, such as reducing costs, simplifying manufacturing processes, and improving power generation efficiency and durability. Therefore, there is an urgent need for a low-cost and high-efficiency triboelectric nanofabric suitable for large-scale production to meet market demand.

[0008] In summary, the existing friction nanogenerator technology has many limitations in flexible and wearable applications. Although fabric-based friction nanogenerators have made some progress, they still need to be improved in terms of material selection, weaving process and power generation efficiency. The present invention aims to provide a friction nanogenerator fabric based on woven fabrics, which can achieve low-cost, large-scale production and efficient power generation through innovative yarn configuration and weaving process, and provide a new solution for flexible and wearable electronic devices. Summary of the invention

[0009] In order to solve the above technical problems existing in the existing friction nano power generation fabrics, the present invention provides a friction nano power generation fabric that is low-cost and suitable for large-scale production.

[0010] The technical solution of the present invention:

[0011] One of the purposes of the present invention is to provide a friction nano-electricity generating fabric, which comprises a first conductive fabric and a second conductive fabric distributed in layers, and the friction between the first conductive fabric and the second conductive fabric realizes electricity generation;

[0012] The first conductive fabric and the second conductive fabric are both made by heavy weaving technology, and one side of the first conductive fabric exhibits volatile electron characteristics, and the other side is an electrode; one side of the second conductive fabric exhibits readily available electron characteristics, and the other side is an electrode.

[0013] It is further defined that the first conductive fabric adopts a double weft structure, the dielectric material yarns that are easy to lose electrons are the surface weft and warp yarns, and the conductive yarns are the inner weft; the second conductive fabric adopts a double weft structure, the dielectric material yarns that are easy to obtain electrons are the surface weft and warp yarns, and the conductive yarns are the inner weft.

[0014] It is further defined that the diameters of the dielectric material yarn that is easy to lose electrons and the dielectric material yarn that is easy to gain electrons are both larger than the conductive yarn, and the surface weft completely covers the inner weft.

[0015] It is further defined that the first conductive fabric adopts a double warp structure, the dielectric material yarns that are easy to lose electrons are the surface warp and weft yarns, and the conductive yarns are the inner warp; the second conductive fabric adopts a double warp structure, the dielectric material yarns that are easy to obtain electrons are the surface warp and weft yarns, and the conductive yarns are the inner warp.

[0016] It is further defined that the diameters of the dielectric material yarn that is easy to lose electrons and the dielectric material yarn that is easy to gain electrons are both larger than the conductive yarn, and the surface warp completely covers the back warp.

[0017] It is further specified that the dielectric material yarn of volatile electrons is made of wool yarn, silk, cotton yarn, nylon 6 or nylon 66.

[0018] It is further specified that the dielectric material yarn of Yizhe Electronics is made of polytetrafluoroethylene or polyvinylidene fluoride.

[0019] It is further defined that the conductive yarn is made of silver-plated yarn, metal wire, metal blended yarn, graphene yarn or carbon nanotube yarn.

[0020] A second object of the present invention is to provide a friction nano-electricity generating device comprising the above-mentioned friction nano-electricity generating fabric.

[0021] A third object of the present invention is to provide a wearable device comprising the above-mentioned friction nano-power generation device.

[0022] Beneficial effects of the present invention:

[0023] The present invention is based on the re-organization design of woven fabrics and adopts a specific yarn configuration, so that one side of the fabric is functionalized as an electrode and the other side acts as a dielectric material. When the dielectric material surfaces of two layers of fabric come into contact and then separate, based on the principle of friction nanogenerators, friction charge transfer occurs between the interfaces, and electrons jump between the two, thereby generating a potential difference and current between the electrode materials on both sides, realizing the conversion of mechanical energy into electrical energy. Compared with the prior art, the present invention has the following advantages:

[0024] (1) The present invention adopts a weft double weave or a warp double weave weaving process to make a power-generating fabric, so that the two sides of the fabric are respectively a dielectric material layer and an electrode layer, and then based on the design of the contact-separation friction nanogenerator principle, it can effectively convert mechanical energy into electrical energy. The above-mentioned fabric production equipment used in the present invention is generally applicable, meets the production conditions of most enterprises, has a simple and efficient manufacturing process, can achieve large-scale production, and has excellent market promotion potential.

[0025] (2) The present invention uses a rich variety of yarns to prepare power-generating fabrics, covering a variety of commonly used yarns, and can be seamlessly combined with clothing materials. It is particularly suitable for effectively collecting the mechanical energy generated by the human body during walking, running and other exercises, and efficiently converting it into electrical energy.

[0026] (3) In addition, the fabric prepared by the present invention has a flexible appearance design. On the basis of satisfying the heavy weave design elements, the yarn color and weave points can be freely changed, thereby achieving a colorful appearance design to meet the personalized needs of different consumers.

[0027] In summary, the present invention has a simple and efficient preparation process, excellent wearable comfort and universality, a wide range of applications, can achieve large-size and large-scale production, and has good industrialization prospects. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 Schematic diagram of the structure of the friction nanogenerator;

[0029] Figure 2 Schematic diagram of the friction power generation process of the friction nanogenerator;

[0030] Figure 3a Schematic diagram of yarn arrangement of the first conductive fabric of Example 1;

[0031] Figure 3b is a schematic diagram of a cross-sectional yarn of a first conductive fabric of Example 1;

[0032] Figure 3c is a front schematic diagram of the first conductive fabric of Example 1;

[0033] Figure 3d is a schematic diagram of the reverse side of the first conductive fabric of Example 1;

[0034] Figure 3e The electrical output performance diagram of the 3cm*5cm friction nanogenerator prepared in Example 1;

[0035] Figure 4a A schematic diagram of yarn arrangement of a first conductive fabric in Example 2;

[0036] Figure 4b is a schematic diagram of a cross-sectional yarn of a first conductive fabric of Example 2;

[0037] Figure 4c is a front schematic diagram of the first conductive fabric of Example 2;

[0038] Figure 4d is a schematic diagram of the reverse side of the first conductive fabric of Example 2;

[0039] Figure 4e The electrical output performance diagram of the 3cm*5cm friction nanogenerator prepared in Example 2;

[0040] Figure 5 This is a design drawing of the first conductive fabric of Example 3;

[0041] Figure 6 This is a design drawing of the first conductive fabric of Example 4;

[0042] In the figure, 1 is the electrode layer of the first conductive fabric, 2 is the electrode layer of the second conductive fabric, 3 is the dielectric material layer 3 of the second conductive fabric that is easy to obtain electrons, 4 is the dielectric material layer that is easy to lose electrons, 5 is the warp yarn, 6 is the inner weft, 7 is the surface weft, 8 is the surface warp, 9 is the inner warp, and 10 is the weft yarn. DETAILED DESCRIPTION

[0043] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0044] The experimental methods used in the following examples are conventional methods unless otherwise specified. The materials, reagents, methods and instruments used are conventional materials, reagents, methods and instruments in the art unless otherwise specified, and can be obtained through commercial channels by those skilled in the art. Specific implementation method 1

[0046] A friction nanometer power generation fabric comprises a first conductive fabric and a second conductive fabric distributed in layers, wherein the first conductive fabric and the second conductive fabric are woven using a double weft structure.

[0047] The warp yarn of the first conductive fabric is a dielectric material that is easy to lose electrons; the weft yarn is divided into two systems, the surface weft is the same dielectric material yarn that is easy to lose electrons as the warp yarn, and the inner weft is a conductive yarn. The structural design of the first conductive fabric conforms to the design characteristics of the double weft weft, and the weft weft points of the dielectric material on the front of the fabric cover the weft weft points of the electrode material yarn, that is, the dielectric material yarn that is easy to lose electrons is the surface weft, which is displayed on the front of the fabric to form a dielectric material layer; the conductive yarn is the inner weft, which is displayed on the back of the fabric to form an electrode layer, and the diameter of the dielectric material yarn that is easy to lose electrons is larger than the conductive yarn, and the surface weft completely covers the inner weft.

[0048] The warp yarn of the second conductive fabric is a dielectric material that is easy to obtain electrons; the weft yarn is divided into two systems, the surface weft is the same dielectric material yarn that is easy to obtain electrons as the warp yarn, and the inner weft is a conductive yarn. The second conductive fabric structure design conforms to the design characteristics of the double weft weft structure, and the weft weft points of the dielectric material on the front of the fabric cover the weft weft points of the electrode material yarn, that is, the dielectric material yarn that is easy to obtain electrons is the surface weft, which is displayed on the front of the fabric to form a dielectric material layer; the conductive yarn is the inner weft, which is displayed on the back of the fabric to form an electrode layer, and the diameter of the dielectric material yarn that is easy to obtain electrons is larger than the conductive yarn, and the surface weft completely covers the inner weft.

[0049] Specifically, the dielectric material yarn that is easy to lose electrons is made of common short fibers or filaments such as wool yarn, silk, cotton yarn, nylon 6 or nylon 66. The dielectric material yarn that is easy to obtain electrons is made of dielectric materials that are easy to obtain electrons such as polytetrafluoroethylene or polyvinylidene fluoride, which ensures that electrons can be efficiently captured during the contact and separation process. The conductive yarn is made of silver-plated yarn, metal wire, metal blended yarn, graphene yarn or carbon nanotube yarn.

[0050] The friction nanogenerator based on the above friction nanogenerator fabric is as follows Figure 1 As shown in the figure, the dielectric material layer 4 of the first conductive fabric that easily loses electrons is opposite to the dielectric material layer 3 of the second conductive fabric that easily obtains electrons, and the electrode layer 1 of the first conductive fabric is connected to the electrode layer 2 of the second conductive fabric through a wire.

[0051] The schematic diagram of the friction power generation of the above-mentioned friction generator is as follows Figure 2 As shown by Figure 2 It can be seen that the friction power generation process is: when the electron-losing dielectric material layer of the first conductive fabric contacts and then separates with the electron-losing dielectric material layer of the second conductive fabric (as shown in i to ii), based on the principle of friction nanogenerator, friction charge transfer occurs between the interfaces (as shown in iii), and electrons jump between the dielectric materials, thereby generating a voltage between the electrode materials on both sides (as shown in iv), which can reach 20V, realizing the conversion of mechanical energy into electrical energy. Specific implementation method 2

[0053] A friction nanometer power generation fabric comprises a first conductive fabric and a second conductive fabric distributed in layers, wherein the first conductive fabric and the second conductive fabric are woven using a double warp structure.

[0054] The weft yarn of the first conductive fabric is a dielectric material that is easy to lose electrons; the warp yarn is divided into two systems, the surface warp is the same dielectric material yarn that is easy to lose electrons as the weft yarn, and the inner warp is a conductive yarn. The first conductive fabric structure design conforms to the design characteristics of the double warp structure, and the warp points of the dielectric material on the front of the fabric cover the warp points of the electrode material yarn, that is, the dielectric material yarn that is easy to lose electrons is the surface warp, which is displayed on the front of the fabric to form a dielectric material layer; the conductive yarn is the inner warp, which is displayed on the back of the fabric to form an electrode layer, and the diameter of the dielectric material yarn that is easy to lose electrons is larger than the conductive yarn, and the surface warp completely covers the inner warp.

[0055] The weft yarn of the second conductive fabric is a dielectric material that is easy to obtain electrons; the warp yarn is divided into two systems, the surface warp is the same dielectric material yarn that is easy to obtain electrons as the weft yarn, and the inner warp is a conductive yarn. The second conductive fabric structure design conforms to the design characteristics of the double warp organization, and the warp organization points of the dielectric material on the front of the fabric cover the warp organization points of the electrode material yarn, that is, the dielectric material yarn that is easy to obtain electrons is the surface warp, which is displayed on the front of the fabric to form a dielectric material layer; the conductive yarn is the inner warp, which is displayed on the back of the fabric to form an electrode layer, and the diameter of the dielectric material yarn that is easy to obtain electrons is larger than the conductive yarn, and the surface warp completely covers the inner warp.

[0056] The working principle of the friction nanogenerator based on the above-mentioned friction nanoelectric power generation fabric is: when the dielectric material layer of the first conductive fabric comes into contact with the second conductive fabric and then separates, based on the principle of the friction nanogenerator, friction charge transfer occurs between the interfaces, and electrons jump between the dielectric materials, thereby generating a potential difference and current between the electrode materials on both sides, realizing the conversion of mechanical energy into electrical energy.

[0057] Example 1

[0058] A friction nano-electricity generating fabric is woven using a double weft structure. Specifically:

[0059] The schematic diagram of the yarn arrangement of the first conductive fabric is shown in Figure 3a As shown, the warp yarn 5 and the surface weft 7 are wool yarns, the inner weft 6 is a silver-plated nylon yarn, the diameters of the warp yarn 5 and the surface weft 7 are 26Nm, and the diameter of the inner weft 6 is 70D / 3. Figure 3a As shown in the figure, the weft points of the outer weft 7 are more than those of the inner weft 6. The weft points of the inner weft 6 are both above and below the weft points of the outer weft 7. The outer weft 7 is thicker. Due to the force of the weft during the weaving process, the yarn will be squeezed and slipped, and the weft points of the outer weft 7 will cover the weft points of the inner weft 6. Figure 3c The fabric effect shown is that there is only wool yarn on the front side of the fabric, and the reverse side of the fabric will form Figure 3d The fabric effect shown is that the silver-plated nylon yarn is on top of the wool yarn. Figure 3b As shown, the warp yarn 5 and the surface weft 7 are wool yarns, and the inner weft 6 is silver-plated nylon yarn. A dielectric material layer 4 with volatile electrons, which is wool yarn on one side, and an electrode layer 1 with silver-plated nylon yarn on the other side is obtained.

[0060] The structure of the second conductive fabric is the same as that of the first conductive fabric, except that the material of the yarn is different, specifically, the warp yarn 5 and the surface weft 7 are polytetrafluoroethylene yarns, and the inner weft 6 is a silver-plated nylon yarn. A dielectric material layer 3 with easy electron access, which is a polytetrafluoroethylene yarn on one side, and an electrode layer 2 with a silver-plated nylon yarn on the other side is obtained.

[0061] The first conductive fabric and the second conductive fabric obtained above are Figure 1 As shown, the dielectric material layer 4 of the first conductive fabric that is easy to lose electrons is placed opposite to the dielectric material layer 3 of the second conductive fabric that is easy to obtain electrons, and the electrode layer 1 of the first conductive fabric and the electrode layer 2 of the second conductive fabric are connected by a wire. The dielectric material layer 4 of the first conductive fabric that is easy to lose electrons and the dielectric material layer 3 of the second conductive fabric that is easy to obtain electrons are contacted and separated, and friction charge transfer occurs between the cross sections of the dielectric material layer 4 of the easy to lose electrons and the dielectric material layer 3 of the easy to obtain electrons, and electrons jump between the dielectric materials, thereby generating a voltage between the electrode materials on both sides, as shown in FIG. Figure 3e The sample shown is 3cm*5cm in size, with an output voltage of 2Hz and a maximum voltage of 20V.

[0062] Example 2

[0063] A friction nano-electricity generating fabric is woven using a double weft structure. Specifically:

[0064] The schematic diagram of the yarn arrangement of the first conductive fabric is shown in Figure 4a As shown, the weft yarn 10 and the outer warp 8 are wool yarns, the inner warp 9 is a silver-plated nylon yarn, the diameters of the weft yarn 10 and the outer warp 8 are 26Nm, and the diameter of the inner warp 9 is 70D / 3. Figure 4a As shown in the figure, the warp points of the outer warp 8 are more than those of the inner warp 9. The warp points of the inner warp 9 are all around the warp points of the outer warp 8. The outer warp 8 is thicker, so the warp points of the outer warp 8 will cover the warp points of the inner warp 9. Figure 4c The fabric effect shown is that there is only wool yarn on the front side of the fabric, and the reverse side of the fabric will form Figure 4d The fabric effect shown is that the silver-plated nylon yarn is on top of the wool yarn. Figure 4bAs shown, the weft yarn 10 and the outer warp 8 are wool yarns, and the inner warp 9 is silver-plated nylon yarn. The obtained dielectric material layer 4 with volatile electrons is a wool yarn on one side, and an electrode layer 1 with silver-plated nylon yarn on the other side.

[0065] The structure of the second conductive fabric is the same as that of the first conductive fabric, except that the material of the yarn is different, specifically the weft yarn 10 and the surface warp 8 are polytetrafluoroethylene yarns, and the inner warp 9 is a silver-plated nylon yarn. A dielectric material layer 3 with easy electron access is obtained, one side of which is a polytetrafluoroethylene yarn, and the other side is an electrode layer 2 with a silver-plated nylon yarn.

[0066] The first conductive fabric and the second conductive fabric obtained above are Figure 1 As shown, the dielectric material layer 4 of the first conductive fabric that is easy to lose electrons is placed opposite to the dielectric material layer 3 of the second conductive fabric that is easy to obtain electrons, and the electrode layer 1 of the first conductive fabric and the electrode layer 2 of the second conductive fabric are connected by a wire. The dielectric material layer 4 of the first conductive fabric that is easy to lose electrons and the dielectric material layer 3 of the second conductive fabric that is easy to obtain electrons are contacted and separated, and friction charge transfer occurs between the cross sections of the dielectric material layer 4 of the easy to lose electrons and the dielectric material layer 3 of the easy to obtain electrons, and electrons jump between the dielectric materials, thereby generating a potential difference between the electrode materials on both sides, as shown in FIG. Figure 4e The sample shown is 3cm*5cm in size, with an output voltage of 2Hz and a maximum voltage of 150V.

[0067] Example 3

[0068] Use Figure 5 The first conductive fabric is prepared by using a double weft weave with different two-sided effects, wherein the colored blocks are weft weave points, and the color blocks without color are warp weave points. Specifically, the warp and the outer weft of the first conductive fabric are wool yarns, and the inner weft is silver-plated nylon yarn; Figure 5 The vertical coordinates Ⅰ-Ⅷ are the surface weft, the vertical coordinates 1-8 are the inner weft, and the horizontal coordinates 1-8 are the warp. Figure 5 The weft weave points of wool yarn on the front side of the fabric cover the weft weave points of silver-plated nylon yarn, so that a dielectric material layer 4 with volatile electrons, which is wool yarn, is obtained on one side, and an electrode layer 1 with silver-plated nylon yarn is obtained on the other side.

[0069] The structure of the second conductive fabric is the same as the first conductive fabric, except that the material of the yarn is different, specifically the warp and the surface weft are polytetrafluoroethylene yarns, and the inner weft is silver-plated nylon yarns. A dielectric material layer 3 with easy electron access is obtained, one side of which is polytetrafluoroethylene yarn, and the other side is an electrode layer 2 with silver-plated nylon yarns.

[0070] The first conductive fabric and the second conductive fabric obtained above are Figure 1As shown, the dielectric material layer 4 of the first conductive fabric that is easy to lose electrons is placed opposite to the dielectric material layer 3 of the second conductive fabric that is easy to obtain electrons, and the electrode layer 1 of the first conductive fabric is connected to the electrode layer 2 of the second conductive fabric through a wire. The dielectric material layer 4 of the first conductive fabric that is easy to lose electrons is in contact and separated from the dielectric material layer 3 of the second conductive fabric that is easy to obtain electrons, and friction charge transfer occurs between the cross sections of the dielectric material layer 4 of the easy to lose electrons and the dielectric material layer 3 of the easy to obtain electrons, and electrons jump between the dielectric materials, thereby generating voltage and current between the electrode materials on both sides.

[0071] Example 4

[0072] Use Figure 6 The first conductive fabric is prepared by using the double-sided satin warp double weave shown in the figure, wherein the colored blocks are the warp weave points, and the color blocks without color are the weft weave points. Specifically, the weft yarn and the surface warp of the first conductive fabric are wool yarns, and the inner warp is silver-plated nylon yarn; Figure 6 The horizontal coordinates 1-5 are the surface diameter, I-V are the inner warp, and the vertical coordinates 1-5 are the weft yarns. Figure 6 The weave structure of the fabric is designed such that the warp points of the wool yarn on the front side cover the warp points of the silver-plated nylon yarn, so that a dielectric material layer 4 with volatile electrons, which is a wool yarn, is obtained on one side, and an electrode layer 1 with silver-plated nylon yarn is obtained on the other side.

[0073] The structure of the second conductive fabric is the same as the first conductive fabric, except that the material of the yarn is different, specifically the weft yarn and the surface warp are polytetrafluoroethylene yarns, and the lining warp is silver-plated nylon yarns. A dielectric material layer 3 with easy electron access is obtained, one side of which is polytetrafluoroethylene yarn, and the other side is an electrode layer 2 with silver-plated nylon yarns.

[0074] The first conductive fabric and the second conductive fabric obtained above are Figure 1 As shown, the dielectric material layer 4 of the first conductive fabric that is easy to lose electrons is placed opposite to the dielectric material layer 3 of the second conductive fabric that is easy to obtain electrons, and the electrode layer 1 of the first conductive fabric is connected to the electrode layer 2 of the second conductive fabric through a wire. The dielectric material layer 4 of the first conductive fabric that is easy to lose electrons is in contact and separated from the dielectric material layer 3 of the second conductive fabric that is easy to obtain electrons, and friction charge transfer occurs between the cross sections of the dielectric material layer 4 of the easy to lose electrons and the dielectric material layer 3 of the easy to obtain electrons, and electrons jump between the dielectric materials, thereby generating voltage and current between the electrode materials on both sides.

[0075] The above description is only a preferred embodiment of the present invention. In view of the fact that technicians in the field of the present invention can make appropriate changes and modifications to the above implementation, the present invention is not limited to the specific implementation described above. Some modifications and changes to the present invention should also fall within the scope of protection of the claims of the present invention.

Claims

1. A friction nano-electricity generating fabric, characterized in that: It comprises a first conductive fabric and a second conductive fabric distributed in layers, wherein friction between the first conductive fabric and the second conductive fabric realizes power generation; The first conductive fabric and the second conductive fabric are both made by heavy weaving process, and one side of the first conductive fabric exhibits volatile electronic properties, and the other side is an electrode; one side of the second conductive fabric exhibits readily available electronic properties, and the other side is an electrode; The first conductive fabric adopts a double weft structure, wherein the dielectric material yarns that are easy to lose electrons are the surface weft and warp yarns, and the conductive yarns are the inner weft; the second conductive fabric adopts a double weft structure, wherein the dielectric material yarns that are easy to obtain electrons are the surface weft and warp yarns, and the conductive yarns are the inner weft; The diameters of the dielectric material yarn that is easy to lose electrons and the dielectric material yarn that is easy to obtain electrons are both larger than the conductive yarn, and the surface weft completely covers the inner weft.

2. A friction nano-electricity generating fabric, characterized in that: It comprises a first conductive fabric and a second conductive fabric distributed in layers, wherein friction between the first conductive fabric and the second conductive fabric realizes power generation; The first conductive fabric and the second conductive fabric are both made by heavy weaving process, and one side of the first conductive fabric exhibits volatile electronic properties, and the other side is an electrode; one side of the second conductive fabric exhibits readily available electronic properties, and the other side is an electrode; The first conductive fabric adopts a double warp structure, the dielectric material yarns that are easy to lose electrons are the surface warp and weft yarns, and the conductive yarns are the inner warp; the second conductive fabric adopts a double warp structure, the dielectric material yarns that are easy to obtain electrons are the surface warp and weft yarns, and the conductive yarns are the inner warp; The diameters of the dielectric material yarn that is easy to lose electrons and the dielectric material yarn that is easy to obtain electrons are both larger than the conductive yarn, and the surface warp completely covers the inner warp.

3. The friction nano power generation fabric according to claim 1 or 2, characterized in that: The dielectric material yarn with volatile electrons is made of wool yarn, silk, cotton yarn, nylon 6 or nylon 66.

4. The friction nanostructured electricity generating fabric according to claim 1 or 2, characterized in that: The dielectric yarn material of Yide Electronics is made of polytetrafluoroethylene or polyvinylidene fluoride.

5. The friction nano power generation fabric according to claim 1 or 2, characterized in that: The conductive yarn is made of silver-plated yarn, metal wire, metal blended yarn, graphene yarn or carbon nanotube yarn.

6. A triboelectric nanoelectricity generating device, characterized in that: The invention comprises the friction nano power generation fabric as described in any one of claims 1 to 5.

7. A wearable device, characterized in that: Includes the friction nano power generation device as described in claim 6.

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