Patterned triboelectric power generation fabric and preparation method, electronic device and power generation garment

Abstract

This disclosure provides a patterned triboelectric fabric and its preparation method, electronic device, and power-generating clothing. The power-generating fabric includes a first power-generating module. The first power-generating module includes: a first substrate, which is a non-conductive material; a first friction component disposed on the first substrate, the first friction component including a first electrode layer and a first friction layer sequentially stacked from the first substrate; and a second friction component disposed on the first substrate, the second friction component including a second electrode layer and a second friction layer sequentially stacked from the first substrate. A gap exists between the first and second friction components. The first friction component has a first pattern, and the second friction component has a second pattern. The power generation composite parameters of the triboelectric fabric are determined based on the area of ​​the first pattern, the area of ​​the second pattern, and the area of ​​the gap. The power generation of the triboelectric fabric is adjusted by regulating the power generation composite parameters. This disclosure can improve the power generation performance and energy conversion efficiency of the power-generating fabric.

Description

Technical Field

[0001] This disclosure relates to the field of triboelectric fabric technology, and more particularly to a patterned triboelectric fabric and its preparation method, electronic device, and power-generating clothing. Background Technology

[0002] In recent years, wearable electronic products have become increasingly popular due to their miniaturization, convenience, and multifunctionality, bringing great convenience to people's daily lives. The energy supply for wearable electronic products is more flexible, lightweight, and easier to use. Currently, wearable electronic products on the market typically use traditional electrochemical batteries as their power source. However, these batteries have limited lifespan and cannot operate sustainably for extended periods, significantly restricting their application. Therefore, developing a new energy source to provide a continuous power supply for wearable electronic products is urgently needed.

[0003] Compared to widely studied mechanical energy sources such as solar, wind, and ocean energy, the mechanical energy generated by human movement can be obtained anytime and anywhere, without environmental limitations, making it a highly reliable and sustainable power source. Triboelectric nanogenerators can convert the mechanical energy of human movement (generated by walking, running, arm swinging, etc.) into electrical energy to power wearable electronic products. However, current textiles integrating triboelectric nanogenerators have low power generation performance and energy conversion efficiency, poor wearing comfort, and complex manufacturing processes, resulting in high costs. Summary of the Invention

[0004] This disclosure provides a patterned triboelectric fabric and its preparation method, an electronic device, and a power-generating garment. It can quantitatively control the power generation performance of the triboelectric fabric, improve power generation performance and energy conversion efficiency, enhance wearing comfort, simplify manufacturing processes, and reduce costs.

[0005] This disclosure provides a patterned triboelectric fabric, including a first power generation module. The first power generation module includes a first substrate, a first friction component, and a second friction component. The first substrate is a non-conductive material. The first friction component is disposed on the first substrate and includes a first electrode layer and a first friction layer stacked sequentially from the first substrate. The second friction component is disposed on the first substrate and includes a second electrode layer and a second friction layer stacked sequentially from the first substrate. The first and second friction components are isolated from each other by a gap. The first friction component has a first pattern, and the second friction component has a second pattern. A power generation composite parameter of the triboelectric fabric is determined based on the area of ​​the first pattern, the area of ​​the second pattern, and the area of ​​the gap between the first and second patterns. The power generation of the triboelectric fabric is adjusted by adjusting the power generation composite parameter.

[0006] According to some exemplary embodiments of this disclosure, the patterned triboelectric fabric further includes a second power generation module, the second power generation module comprising: a second substrate, the second substrate being a non-conductive material; a third friction component disposed on the second substrate, the third friction component comprising a third electrode layer and a third friction layer sequentially stacked from the second substrate; and a fourth friction component disposed on the second substrate, the fourth friction component comprising a fourth electrode layer and a fourth friction layer sequentially stacked from the second substrate; wherein the third friction component and the fourth friction component are separated from each other by a gap, and the third friction component has the first pattern, and the fourth friction component has the second pattern; the second power generation module is disposed opposite to the first power generation module, and in a direction perpendicular to the first substrate, the first friction component and the third friction component are disposed opposite to each other, and the second friction component and the fourth friction component are disposed opposite to each other; under the action of an external force, the first friction layer of the first friction component and the third friction layer of the third friction component are in vertical contact or horizontal sliding friction, and the second friction layer of the second friction component and the fourth friction layer of the fourth friction component are in vertical contact or horizontal sliding friction to generate static electricity.

[0007] According to some exemplary embodiments of this disclosure, the power generation composite parameters are obtained according to the following formula:

[0008]

[0009] Wherein, D is the power generation composite parameter, S1 is the area of ​​the first pattern, S2 is the area of ​​the second pattern, and S3 is the area of ​​the gap between the first pattern and the second pattern.

[0010] According to some exemplary embodiments of this disclosure, the triboelectric fabric generates the most electricity when the value of the power generation composite parameter is 0.9.

[0011] According to some exemplary embodiments of this disclosure, the first friction layer and the second friction layer have the same first electrification sequence, the third friction layer and the fourth friction layer have the same second electrification sequence, and the first electrification sequence and the second electrification sequence are different.

[0012] According to some exemplary embodiments of this disclosure, the first electrode layer and the second electrode layer are connected; the third electrode layer and the fourth electrode layer are connected.

[0013] According to some exemplary embodiments of this disclosure, the first friction layer and the second friction layer have different charging sequences, the third friction layer has different charging sequences from the first friction layer and the fourth friction layer, and the fourth friction layer has different charging sequences from the second friction layer.

[0014] According to some exemplary embodiments of this disclosure, the projection of the third friction component on the first substrate coincides with the first friction component, and the projection of the fourth friction component on the first substrate coincides with the second friction component.

[0015] According to some exemplary embodiments of this disclosure, a first gap is provided between the first friction assembly and the second friction assembly; and a second gap is provided between the third friction assembly and the fourth friction assembly.

[0016] According to some exemplary embodiments of this disclosure, the first power generation module further includes: a first insulating spacer filling the first gap, wherein the size of the first insulating spacer is not greater than the size of the first friction component and the second friction component in a direction perpendicular to the first substrate; the second power generation module further includes: a second insulating spacer filling the second gap, wherein the size of the second insulating spacer is not greater than the size of the third friction component and the fourth friction component in a direction perpendicular to the second substrate.

[0017] According to some exemplary embodiments of the present disclosure, the first pattern and the second pattern each have a plurality of strip branches.

[0018] According to some exemplary embodiments of the present disclosure, the first pattern and the second pattern each have a plurality of strip branches, and each strip branch is provided with a plurality of circles, triangles, quadrilaterals or polygons at intervals; wherein, one end of the plurality of strip branches of the first pattern is connected, and one end of the plurality of strip branches of the second pattern is connected.

[0019] According to some exemplary embodiments of this disclosure, both the first pattern and the second pattern are circular.

[0020] According to some exemplary embodiments of this disclosure, both the first pattern and the second pattern are triangles, quadrilaterals, polygons, or circles.

[0021] According to some exemplary embodiments of this disclosure, the first electrode layer, the second electrode layer, the third electrode layer, and the fourth electrode layer are made of at least one of conductive fabric and conductive polymer.

[0022] According to some exemplary embodiments of this disclosure, the first friction layer, the second friction layer, the third friction layer and the fourth friction layer are made of at least one of insulating woven fabric, insulating knitted fabric, breathable polymer, breathable polymer doped composite and non-breathable polymer, wherein the breathable polymer and the breathable polymer doped composite have a plurality of through-pore structures.

[0023] According to some exemplary embodiments of this disclosure, the patterned triboelectric fabric further includes: an intermediate friction element located between the first power generation module and the second power generation module; the intermediate friction element is made of at least one of insulating woven fabric, insulating knitted fabric, breathable polymer, breathable polymer doped composite, and non-breathable polymer.

[0024] According to some exemplary embodiments of this disclosure, the electrification sequence of the intermediate friction element is different from that of the first friction layer and the third friction layer.

[0025] This disclosure also provides a method for preparing a patterned triboelectric fabric, comprising forming a first power generation module, including: providing a first substrate, the first substrate being a non-conductive material; forming a first friction component on the first substrate, the first friction component having a first pattern, the first friction component including a first electrode layer and a first friction layer sequentially stacked from the first substrate; forming a second friction component on the first substrate, the second friction component being isolated from the first friction component by a gap, the second friction component having a second pattern, the second friction component including a second electrode layer and a second friction layer sequentially stacked from the first substrate.

[0026] According to some exemplary embodiments of this disclosure, the first electrode layer is a conductive fabric, and the first friction layer is a breathable silicone rubber; a first friction assembly is formed on the first substrate, comprising:

[0027] The conductive fabric is cleaned using oxygen or air plasma;

[0028] The preparation of a silicone rubber emulsion includes: taking 0.8 to 1.2 parts of polydimethylsiloxane, stirring it, and adding 0.4 to 0.6 parts of polydimethylsiloxane with a viscosity of 10 cs to 200 cs, 0.8 to 1.2 parts of dibutyl phthalate and 0.8 to 1.2 parts of water-soluble salt with an average particle size of 500 nm to 500 μm during the stirring process, and stirring evenly to form the silicone rubber emulsion;

[0029] The silicone rubber emulsion is coated onto a template to form a coating with a thickness of 0.25 mm to 1 mm. After standing to remove air bubbles and level the surface, it is placed in an oven at 70°C to 80°C for a semi-crosslinking reaction for 8 to 12 minutes. The conductive fabric is then placed on the semi-crosslinked coating and placed in an oven at 85°C to 100°C for a crosslinking reaction for 0.8 to 1.2 hours. The coating forms silicone rubber. The silicone rubber and the conductive fabric are then demolded from the template to form a silicone rubber composite conductive fabric.

[0030] The silicone rubber composite conductive fabric is cleaned with ethanol under stirring for 1.5 to 3 hours, then ultrasonically cleaned with water, and then dried to obtain a breathable silicone rubber composite conductive fabric; wherein, the breathable silicone rubber in the breathable silicone rubber composite conductive fabric is the first friction layer, and the conductive fabric is the first electrode layer.

[0031] The breathable silicone rubber composite conductive fabric is bonded to the first substrate.

[0032] This disclosure also provides an electronic device, including: an electronic component and a patterned triboelectric fabric as described in any of the above embodiments. The patterned triboelectric fabric is electrically connected to the electronic component to provide electrical energy to the electronic component.

[0033] This disclosure also provides a power-generating garment, comprising: a garment body, at least a portion of which is a patterned triboelectric fabric as described in any of the above embodiments.

[0034] As can be seen from the above technical solutions, the patterned triboelectric fabric of this disclosure embodiment has at least one of the following advantages and positive effects:

[0035] In this embodiment, because the first and second friction components are patterned, the area values ​​of the first pattern, the second pattern, and the gap between them can be controlled to determine the power generation composite parameters of the triboelectric fabric. Based on these parameters, the power generation performance of the triboelectric fabric can be quantitatively controlled to improve power generation performance and energy conversion rate. Simultaneously, the patterning of the first and second friction components makes the power generation fabric softer, improving wearing comfort and saving materials. Furthermore, since the first and second friction components are directly formed on the first substrate, the manufacturing process is simplified, reducing costs. Attached Figure Description

[0036] The above and other features and advantages of this disclosure will become more apparent from a detailed description of exemplary embodiments thereof with reference to the accompanying drawings.

[0037] Figure 1This is a schematic diagram of a patterned triboelectric fabric having a first power generation module and a second power generation module, as shown in some embodiments of this disclosure;

[0038] Figure 2 This is a schematic cross-sectional view of a patterned triboelectric fabric having a first power generation module and a second power generation module, as shown in some embodiments of this disclosure.

[0039] Figures 3 to 6 This is a schematic diagram illustrating a first power generation module with different patterns according to some embodiments of this disclosure;

[0040] Figure 7 This is a schematic diagram of an unpatterned triboelectric fabric having a first power generation module and a second power generation module, as shown in some embodiments of this disclosure.

[0041] Figure 8 This is a cross-sectional view of an unpatterned triboelectric fabric having a first power generation module and a second power generation module, as shown in some embodiments of this disclosure.

[0042] Figure 9 This is a graph showing the relationship between voltage and power generation composite parameters based on patterned triboelectric fabric, as illustrated in some embodiments of this disclosure.

[0043] Figure 10 This is a schematic diagram of the structure of a breathable silicone rubber composite conductive fabric shown in some embodiments of this disclosure;

[0044] Figure 11 The following are voltage test diagrams showing the generation of pure silicone rubber and breathable silicone rubber as friction layers in some embodiments of this disclosure;

[0045] Figure 12 The diagram shows the current generated when pure silicone rubber and breathable silicone rubber are used as friction layers, as illustrated in some embodiments of this disclosure.

[0046] Figure 13 This is a schematic diagram of a patterned triboelectric fabric having a first power generation module, an intermediate friction element, and a second power generation module, as shown in some embodiments of this disclosure.

[0047] Figure 14 This is a cross-sectional view of a patterned triboelectric fabric having a first power generation module, an intermediate friction element, and a second power generation module, as shown in some embodiments of this disclosure.

[0048] Figure 15 This is a schematic diagram illustrating the connection between a patterned triboelectric fabric having a first power generation module, an intermediate friction element, and a second power generation module and an electronic device, as shown in some embodiments of this disclosure.

[0049] Figure 16This is a flowchart illustrating a method for preparing patterned triboelectric fabrics according to some embodiments of this disclosure;

[0050] Figure 17 This is a block diagram illustrating the preparation of breathable silicone rubber composite conductive fabrics according to some embodiments of this disclosure;

[0051] Figure 18 This is a schematic diagram of an electronic device shown in some embodiments of the present disclosure;

[0052] Figure 19 The above are schematic diagrams illustrating power-generating garments according to some embodiments of this disclosure;

[0053] Figure 20 This is a schematic diagram illustrating a power-generating garment according to other embodiments of this disclosure.

[0054] Explanation of reference numerals in the attached figures:

[0055] 100. Triboelectric fabric; 1. First power generation module; 10. First substrate; 11. First friction assembly; 111. First electrode layer; 112. First friction layer; 12. Second friction assembly; 121. Second electrode layer; 122. Second friction layer; 13. First gap; 131. First insulating spacer; 2. Second power generation module; 20. Second substrate; 21. Third friction assembly; 211. Third electrode layer; 212. Third friction layer; 22. Fourth friction assembly; 221. Fourth electrode layer; 222. Fourth friction layer; 23. Second gap; 231. Second insulating spacer; 3. Intermediate friction element; P1. First pattern; P2. Second pattern; 200. Electronic device; 300. Garment body. Detailed Implementation

[0056] Exemplary embodiments will now be described more fully with reference to the accompanying drawings. However, these exemplary embodiments can be implemented in many forms and should not be construed as limited to the embodiments set forth herein; rather, they are provided so that this disclosure will be thorough and complete, and will fully convey the concept of the exemplary embodiments to those skilled in the art. The same reference numerals in the drawings denote the same or similar structures, and therefore their detailed description will be omitted.

[0057] In the following description of different exemplary embodiments of the present disclosure, reference is made to the accompanying drawings, which form part of the present disclosure and illustrate, by way of example, different exemplary structures that can implement various aspects of the present disclosure. It should be understood that other specific embodiments of components, structures, exemplary devices, systems, and steps may be used, and structural and functional modifications may be made without departing from the scope of the present disclosure. Furthermore, while the terms “above,” “between,” “within,” etc., may be used in this specification to describe different exemplary features and elements of the present disclosure, these terms are used herein only for convenience, such as according to the orientation of the examples in the drawings. Nothing in this specification should be construed as requiring a specific three-dimensional orientation of the structure to fall within the scope of the present disclosure. Moreover, the terms “first,” “second,” etc., in the claims are used only as illustrative marks and not as numerical limitations on the object.

[0058] The flowcharts shown in the accompanying drawings are merely illustrative and do not necessarily include all content and operations / steps, nor do they necessarily have to be performed in the described order. For example, some operations / steps can be broken down, while others can be combined or partially combined; therefore, the actual execution order may change depending on the specific circumstances.

[0059] In addition, in the description of this disclosure, "multiple" means at least two, such as two, three, etc., unless otherwise expressly and specifically limited.

[0060] In related research, the mechanical energy of human movement can be obtained anytime and anywhere, without environmental limitations, making it a highly reliable and sustainable power source. Therefore, this research utilizes triboelectric nanogenerators to convert the mechanical energy of human movement into electrical energy. Triboelectric nanogenerators can effectively harvest energy from the surrounding environment and human movement, and have advantages such as simple structure, low cost, and green sustainability. These nanogenerators can convert the mechanical energy of human movement (walking, running, arm swinging, etc.) into electrical energy to power wearable electronic products.

[0061] However, among related technologies, textiles integrating triboelectric nanogenerators have complex manufacturing processes, require a large amount of chemical materials, have high production costs, poor wearing comfort, and are not easy to mass-produce.

[0062] Based on this, embodiments of the present disclosure provide a patterned triboelectric fabric 100. In some embodiments, the patterned triboelectric fabric 100 has a power generation structure, the triboelectric fabric 100 including... Figure 1The first power generation module 1 is shown in the figure. The first power generation module 1 includes a first substrate 10, a first friction component 11, and a second friction component 12. The first substrate 10 is made of a non-conductive material. The first friction component 11 is disposed on the first substrate 10 and includes a first electrode layer 111 and a first friction layer 112 stacked sequentially from the first substrate 10. The second friction component 12 is disposed on the first substrate 10 and includes a second electrode layer 121 and a second friction layer 122 stacked sequentially from the first substrate 10. The first friction component 11 and the second friction component 12 are separated from each other by a gap, and the first friction component 11 has a first pattern P1, and the second friction component 12 has a second pattern P2.

[0063] Specifically, the first substrate 10 can be a non-conductive fabric, such as a non-conductive knitted fabric, a non-conductive woven fabric, or a non-conductive nonwoven fabric. In some embodiments, the first substrate 10 can be woven cotton fabric. Both the first electrode layer 111 and the second electrode layer 121 are made of a soft, conductive material. Both the first friction layer 112 and the second friction layer 122 are soft material layers capable of generating static electricity through friction. The first electrode layer 111 and the first friction layer 112 have the same pattern, and the second electrode layer 121 and the second friction layer 122 have the same pattern.

[0064] The patterned triboelectric fabric 100 in the above embodiments of this disclosure may include only a first power generation module 1. The first friction layer 112 and the second friction layer 122 of the first power generation module 1 may generate static electricity by direct contact with the skin, or be sewn together with another triboelectric material. The first friction layer 112 and the second friction layer 122 generate static electricity by rubbing against the triboelectric material.

[0065] In this embodiment of the disclosure, the first pattern P1 and the second pattern P2 may be the same or different, and the specific shapes of the patterns will be described later.

[0066] In this embodiment of the disclosure, the power generation composite parameter of the triboelectric fabric 100 is determined based on the area of ​​the first pattern P1, the area of ​​the second pattern P2, and the area of ​​the gap between the first pattern P1 and the second pattern P2. Specifically, the area of ​​the first pattern P1 of the first friction component 11 can be defined as S1, the area of ​​the second pattern P2 of the second friction component 12 as S2, the area of ​​the gap between the first pattern P1 and the second pattern P2 as S3, and the power generation composite parameter as D. Then, D can be expressed by the following formula (1):

[0067]

[0068] refer to Figure 9The graph shows the relationship between the power generation composite parameter D and the voltage after triboelectric charging. The horizontal axis represents the value of the power generation composite parameter of the patterned triboelectric fabric 100, and the vertical axis represents the voltage value generated by the triboelectric fabric 100 after charging, in volts (V). The graph shows that the power generation performance of the triboelectric fabric 100 is determined by the power generation composite parameter D. As the power generation composite parameter D increases, the voltage value first increases and then decreases, exhibiting a non-linear relationship. When the value of the power generation composite parameter D is 0.9, the voltage of the triboelectric fabric 100 is the maximum, i.e., the power generation is the maximum.

[0069] Therefore, by patterning the triboelectric fabric 100, controlling the area of ​​the first pattern P1, the second pattern P2, and the gap between them, the magnitude of the power generation composite parameter D can be adjusted, thereby achieving quantitative control and optimization of the power generation performance of the triboelectric fabric 100 and improving the energy conversion rate.

[0070] As can be seen from the above, in the embodiments of this disclosure, since the first friction component 11 and the second friction component 12 are patterned, the area ratio of the first pattern P1, the second pattern P2, and the gap between the first pattern P1 and the second pattern P2 can be controlled to determine the power generation composite parameter D of the triboelectric fabric. Based on the power generation composite parameter, the power generation performance of the triboelectric fabric 100 can be quantitatively controlled to improve power generation performance and energy conversion rate. Simultaneously, the patterning of the first friction component 11 and the second friction component 12 makes the power generation fabric softer, improving wearing comfort and saving materials. Furthermore, since the first friction component 11 and the second friction component 12 are directly formed on the first substrate 10, the manufacturing process is simplified, facilitating mass production and reducing costs.

[0071] In some embodiments, such as Figure 1 As shown, the patterned triboelectric fabric 100 of this embodiment can also have a two-layer power generation structure. Based on the above embodiment, the triboelectric fabric 100 further includes a second power generation module 2, which includes a second substrate 20, a third friction component 21, and a fourth friction component 22. To clearly illustrate the structure of the second power generation module 2, Figure 1 The image shows the second power generation module 2 after it has been flipped 180°.

[0072] The second substrate 20 is made of a non-conductive material. Specifically, the second substrate 20 may be made of the same material as the first substrate 10. The second substrate 20 may also be a non-conductive fabric, such as a non-conductive knitted fabric, a non-conductive woven fabric, or a non-conductive nonwoven fabric. In some embodiments, the first substrate 10 may be a woven cotton fabric.

[0073] The third friction assembly 21 is disposed on the second substrate 20, and the third friction assembly 21 includes a third electrode layer 211 and a third friction layer 212 stacked sequentially from the second substrate 20. The fourth friction assembly 22 is disposed on the second substrate 20, and the fourth friction assembly 22 includes a fourth electrode layer 221 and a fourth friction layer 222 stacked sequentially from the second substrate 20.

[0074] In this embodiment, the third friction component 21 and the fourth friction component 22 are separated from each other by a gap, and the third friction component 21 has a first pattern P1, while the fourth friction component 22 has a second pattern P2. The second power generation module 2 is disposed opposite to the first power generation module 1. In a direction perpendicular to the first substrate 10, the first friction component 11 is disposed opposite to the third friction component 21, and the second friction component 12 is disposed opposite to the fourth friction component 22. Under the action of an external force, the first friction layer 112 of the first friction component 11 and the third friction layer 212 of the third friction component 21 are in vertical contact or slide horizontally, and the second friction layer 122 of the second friction component 12 and the fourth friction layer 222 of the fourth friction component 22 are in vertical contact or slide horizontally to generate static electricity.

[0075] It should be noted that the first pattern P1 and the second pattern P2 can be the same or different; no special restrictions are imposed here. Figure 2 As shown, the first friction component 11 and the third friction component 21 are arranged opposite each other, and there may be a certain distance between them or slight contact. The second friction component 12 and the fourth friction component 22 are arranged opposite each other, and there may be a certain distance between them or slight contact. Therefore, the first friction component 11 and the third friction component 21 are equivalent to a nano-triboelectric generator. In addition, the above-mentioned power generation composite parameter D can be a parameter of the first power generation module 1 or a parameter of the second power generation module 2, and the calculation relationship is the same.

[0076] Under external force, the nano-triboelectric generator produces static electricity in two modes. The first mode involves the vertical movement of the first friction component 11 and the third friction component 21 relative to each other (perpendicular to the first substrate 10). Their friction layers can contact and separate perpendicularly, generating static electricity at the moment of contact and separation. The second mode involves the first friction component 11 and the third friction component 21 contacting and rubbing against each other in a horizontal direction (which can be understood as parallel to the first substrate 10), generating static electricity. The same applies to the second friction component 12 and the fourth friction component 22. The detailed principles of these two modes are well-known in the art and will not be elaborated here.

[0077] Therefore, in this embodiment of the present disclosure, it is preferred that when the first power generation module 1 and the second power generation module 2 are arranged opposite to each other, the projection of the third friction component 21 on the first substrate 10 coincides with the first friction component 11, and the projection of the fourth friction component 22 on the first substrate 10 coincides with the second friction component 12. Thus, in this first mode, the effective area for generating static electricity when the two opposing friction components contact or separate is maximized. Furthermore, since the first power generation module 1 and the second power generation module 2 are arranged opposite to each other, in one case, the first pattern P1 of the first friction component 11 and the first pattern P1 of the third friction component 21 are completely identical. The first pattern P1 is preferably a symmetrical shape, which simplifies the docking of the first power generation module 1 and the second power generation module 2. In another case, the first pattern P1 of the first friction component 11 and the first pattern P1 of the third friction component 21 are respectively arranged on the substrate in an axially symmetrical manner. In this case, the individual first pattern P1 does not necessarily need to be a symmetrical shape. Figure 1 As shown, the two first patterns P1 are axially symmetrical to ensure that the two first patterns P1 can completely overlap when the first power generation module 1 and the second power generation module 2 face each other for docking. The same applies to the second pattern P2 of the second friction component 12 and the fourth friction component 22, which will not be described in detail here. Those skilled in the art can choose according to the actual situation, and there is no special limitation here, as long as the friction layers of the first friction component 11 and the third friction component 21 can contact each other.

[0078] Different friction materials have different charging sequences, which can be determined using a triboelectric series table. In the series, the greater the distance between two substances in the series, the greater the amount of electricity generated during friction. After friction, one substance becomes positively charged and the other becomes negatively charged. Therefore, the closer two substances are in the series, the less electricity they will accumulate after friction. Even identical substances will generate electricity after friction, but the amount will be relatively smaller.

[0079] Based on the above, in some embodiments, the first friction layer 112 and the second friction layer 122 may have the same first electrification sequence, and the third friction layer 212 and the fourth friction layer 222 may have the same second electrification sequence, although the first and second electrification sequences may differ. Alternatively, the first friction layer 112 and the second friction layer 122 may be made of the same first material, while the third friction layer 212 and the fourth friction layer 222 may be made of another identical second material. For example, after the first material and the second material rub against each other, the first material becomes positively charged and the second material becomes negatively charged. Therefore, after the first friction layer 112 and the third friction layer 212 rub against each other vertically or horizontally, and after the second friction layer 122 and the fourth friction layer 222 rub against each other vertically or horizontally, the first friction layer 112 and the second friction layer 122 become positively charged, and the third friction layer 212 and the fourth friction layer 222 become negatively charged. That is, the first power generation module 1 generates positive electricity, and the second power generation module 2 generates negative electricity. The first electrode layer 111 and the second electrode layer 121 can be connected by wires, and the wires can be connected to the positive terminal of the electronic device 200. Similarly, the third electrode layer 211 and the fourth electrode layer 221 can be connected by wires, and the wires can be connected to the negative terminal of the electronic device 200, thereby supplying power to the electronic device 200. Therefore, in some embodiments, the first electrode layer 111 and the second electrode layer 121 are connected, and the third electrode layer 211 and the fourth electrode layer 221 are connected.

[0080] Of course, the first friction layer 112 and the second friction layer 122 can be made of different materials with the same electrification sequence, and the third friction layer 212 and the fourth friction layer 222 can be made of different materials with the same electrification sequence. No limitation is made here.

[0081] In other embodiments, the first friction layer 112 and the second friction layer 122 may have different electrification sequences, the third friction layer 212 may have different electrification sequences from the first friction layer 112 and the fourth friction layer 222 respectively, and the fourth friction layer 222 may have different electrification sequences from the second friction layer 122.

[0082] Specifically, in some embodiments, the first friction layer 112 has a first electrification sequence, the second friction layer 122 has a second electrification sequence, the third friction layer 212 has a third electrification sequence, and the fourth friction layer 222 has a fourth electrification sequence. The first, second, third, and fourth electrification sequences are all different. For example, after the first friction layer 112 comes into perpendicular contact with or rubs horizontally against the third friction layer 212, the first friction layer 112 generates a positive charge, and the third friction layer 212 generates a negative charge; after the second friction layer 122 comes into perpendicular contact with or rubs horizontally against the fourth friction layer 222, the second friction layer 122 generates a positive charge, and the fourth friction layer 222 generates a negative charge. In other words, the first power generation module 1 generates positive electricity, and the second power generation module 2 generates negative electricity. The first electrode layer 111 and the second electrode layer 121 can be connected by wires, and the wires can be connected to the positive terminal of the electronic device 200. The third electrode layer 211 and the fourth electrode layer 221 can be connected by wires, and the wires can be connected to the negative terminal of the electronic device 200, so as to realize the power supply to the electronic device 200.

[0083] In other embodiments, the first friction layer 112 has a first electrification sequence, the second friction layer 122 has a second electrification sequence, the third friction layer 212 has a second electrification sequence, and the fourth friction layer 222 has a first electrification sequence. After the first friction layer 112 and the third friction layer 212 come into vertical contact or rub horizontally, the first friction layer 112 generates a positive charge, and the third friction layer 212 generates a negative charge. After the second friction layer 122 and the fourth friction layer 222 come into vertical contact or rub horizontally, the second friction layer 122 generates a negative charge, and the fourth friction layer 222 generates a positive charge. Thus, the first power generation module 1 can generate both positive and negative charges, and the second power generation module 2 can do the same. In this case, in some embodiments, the first electrode layer 111 and the second electrode layer 121 are not connected to each other, and the third electrode layer 211 and the fourth electrode layer 221 are not connected to each other. Wires can be used to connect all the positively charged electrode layers and all the negatively charged electrode layers, and lead them out to the positive and negative terminals of the electronic device 200 respectively. In other embodiments, although the first electrode layer 111 and the second electrode layer 121 have different electrical properties, and the third electrode layer 211 and the fourth electrode layer 221 have different electrical properties, according to the characteristics of triboelectric charging, the first electrode layer 111 and the second electrode layer 112 can still be connected, and the third electrode layer 211 and the fourth electrode layer 221 can still be connected, thus conducting electrical energy. Of course, the charging sequence of the first friction layer 112, the second friction layer 122, the third friction layer 212, and the fourth friction layer 222 can be different.

[0084] In some embodiments, such as Figure 1 and Figure 2As shown, a first gap 13 exists between the first friction component 11 and the second friction component 12; a second gap 23 exists between the third friction component 21 and the fourth friction component 22. The first gap 13 and the second gap 23 isolate the first friction component 11 and the second friction component 12, and the third friction component 21 and the fourth friction component 22, respectively. On the one hand, the first gap 13 and the second gap 23 can increase the surface roughness of the first power generation module 1 and the second power generation module 2, promoting charge transfer between the friction components and increasing power generation. On the other hand, the first gap 13 can reduce the amount of the first friction component 11 and the second friction component 12 used, saving costs. Simultaneously, only the first substrate 10 is present at the first gap 13, where the thickness of the first power generation module 1 is reduced, making the triboelectric fabric 100 with the first power generation module 1 softer and improving wearing comfort. The second gap 23 has the same function, which will not be elaborated here.

[0085] In some embodiments, the widths of the first gap 13 and the second gap 23 can be 1 to 3 mm, respectively. For example, in addition to the two values ​​mentioned above, the width can be 1.5 mm, 2 mm, or 2.5 mm, without special limitation here. Of course, the widths of the first gap 13 and the second gap 23 can be the same or different. In order to ensure that the first friction layer 112 and the third friction layer 212 overlap as much as possible when in contact, the first gap 13 and the second gap 23 are chosen to have the same width in this embodiment.

[0086] In some embodiments, such as Figure 3 As shown, the first power generation module 1 further includes a first insulating spacer 131 filling the first gap 13. In the direction perpendicular to the first substrate 10, the size of the first insulating spacer 131 is no larger than the size of the first friction assembly 11 and the second friction assembly 12. The first power generation module 1 also includes a second insulating spacer 231 filling the second gap 23. In the direction perpendicular to the second substrate 20, the size of the second insulating spacer 231 is no larger than the size of the third friction assembly 21 and the fourth friction assembly 22.

[0087] Specifically, a thin layer of insulating plush can be filled into the first gap 13 and the second gap 23. In a direction perpendicular to the first base 10 and the second base 20, the height of this plush is lower than the height of the first friction component 11 and the second friction component 12. When the triboelectric fabric 100 only has the first power generation module 1 and needs to rub against the skin, the first insulating spacer 131 can increase wearing comfort. When both the first power generation module 1 and the second power generation module 2 are present, the first insulating spacer 131 and the second insulating spacer 231 can increase the texture of the fabric and avoid the unsightly appearance caused by the first base 10 and the second base 20 being too thin.

[0088] In some embodiments, such as Figure 1 The first pattern P1 can be a shape combining a rectangle and a long strip protruding from one side of the rectangle, and the second pattern P2 can be a rectangle.

[0089] In some embodiments, such as Figure 3 As shown, the first pattern P1 and the second pattern P2 each have multiple strip-shaped branches. Specifically, each pattern includes multiple vertically extending strip-shaped branches and at least one horizontally extending strip-shaped branch, the horizontally extending strip-shaped branches being connected ( Figure 3 The diagram shows a horizontally extending strip-shaped branch, with one end of multiple vertically extending strip-shaped branches connected to this horizontally extending strip-shaped branch, making the entire pattern interconnected. Therefore, when generating charge, only one wire needs to be drawn from one end of the pattern to output electrical energy. To save space, the multiple strip-shaped branches of the first pattern P1 and the multiple strip-shaped branches of the second pattern P2 are arranged opposite each other, and the vertically extending strip-shaped branches are inserted into the gaps between adjacent vertically extending strip-shaped branches of the other.

[0090] In some embodiments, such as Figure 4 As shown, the first pattern P1 and the second pattern P2 each have multiple strip-shaped branches. Unlike the above embodiment, each strip-shaped branch has multiple circles, triangles, quadrilaterals, or polygons spaced apart. One end of each strip-shaped branch in the first pattern P1 is connected, and one end of each strip-shaped branch in the second pattern P2 is connected, facilitating the output of electrical energy via wires.

[0091] Specifically, each strip branch of the first pattern P1 and each strip branch of the second pattern P2 have the same shape, such as Figure 4 The regular hexagon shown. Furthermore, the multiple shapes on the strip branches of the adjacent first pattern P1 and the multiple shapes on the strip branches of the second pattern P2 are staggered in the extension direction of the strip branches to make full use of the space.

[0092] Of course, each strip branch in the first pattern P1 and each strip branch in the second pattern P2 can have different shapes. For example, a strip branch can have triangles, circles and regular hexagons at the same time, which will not be elaborated here.

[0093] In some embodiments, such as Figure 5 As shown, both the first pattern P1 and the second pattern P2 are annular and spaced apart from each other. The pattern in the middle can be circular to make full use of space. Both the first pattern P1 and the second pattern P2 are continuous, that is, the electrode layers of the first pattern P1 and the second pattern P2 are continuous, which facilitates the output of electrical energy.

[0094] In some embodiments, both the first pattern P1 and the second pattern P2 can be triangles, quadrilaterals, polygons, or circles. For example... Figure 6 As shown, both the first pattern P1 and the second pattern P2 are triangles and are arranged opposite each other at intervals.

[0095] In the above embodiments, the first friction component 11 and the second friction component 12 are patterned into the above shape, which can control the area of ​​the two components. In some embodiments, the ratio of their areas can be 1:1, 1.5:1 or 2:1, etc. Therefore, the power generation composite parameters can be controlled more flexibly, the power generation performance of the triboelectric fabric 100 can be adjusted more precisely, and the power generation fabric is made softer, improving the comfort of wearing and saving materials.

[0096] In this embodiment of the disclosure, by patterning the triboelectric fabric 100 and selecting various materials, the open-circuit voltage of the triboelectric fabric 100 when it is energized can reach 52V and the short-circuit current can reach 1.6μA when the human body movement frequency is 4Hz.

[0097] In some embodiments, such as Figure 7 and Figure 8 As shown, the first power generation module 1 only has a first friction component 11, and the second power generation module 2 only has a third friction component 21. This can also be understood as follows: the area ratio of the second pattern P2 of the second friction component 12 in the first power generation module 1 to the area of ​​the first pattern P1 of the first friction component 11 is 0:1; and the area ratio of the second pattern P2 of the fourth friction component 22 in the second power generation module 2 to the area of ​​the first pattern P1 of the third friction component 21 is 0:1. The area of ​​the gap between the first pattern P1 and the second pattern P2 is 0. Thus, this is suitable for electronic devices 200 that require a voltage generated when the power generation composite parameter D is 1.

[0098] In some embodiments, the first electrode layer 111, the second electrode layer 121, the third electrode layer 211, and the fourth electrode layer 221 may have the same material, all made of a conductive, flexible material. For example, the materials of the first electrode layer 111, the second electrode layer 121, the third electrode layer 211, and the fourth electrode layer 221 may be at least one of conductive fabric and conductive polymer. The conductive fabric may be copper-nickel alloy cloth, silver conductive cloth, carbon conductive cloth, etc., and is not specifically limited here. The conductive polymer may be silicone rubber, plastic, coating, etc., doped with conductive materials, and is not specifically limited here.

[0099] In some embodiments, the materials of the first friction layer 112, the second friction layer 122, the third friction layer 212, and the fourth friction layer 222 can be at least one of the following: insulating woven fabric, insulating knitted fabric, breathable polymer, breathable polymer doped composite, and non-breathable polymer. Specifically, the insulating woven fabric can be at least one of woven cotton, woven nylon, wool, and polyester. The insulating knitted fabric can be at least one of knitted cotton, knitted nylon, wool, and polyester. Figure 10 As shown, the breathable polymer can be at least one of nitrile rubber, silicone rubber, and polyurethane, which have a breathable, interconnected porous structure. The breathable polymer doping composite can be an insulating material capable of generating electricity through triboelectricity doped into the polymer, and has a breathable, interconnected porous structure, such as the aforementioned insulating material doped into breathable nitrile rubber, silicone rubber, and polyurethane. The non-breathable polymer can be at least one of non-breathable nitrile rubber, silicone rubber, and polyurethane. Those skilled in the art can choose according to the actual situation, and no special limitation is made here.

[0100] refer to Figures 11 to 12 The diagram shows a test chart of the power generation performance of a 4cm x 4cm power-generating fabric. It also shows the test chart of the voltage and current generated in the first mode of static electricity generation (i.e., the first friction assembly 11 and the third friction assembly 21 moving relative to each other in the vertical direction) when the friction layers are breathable silicone rubber and pure silicone rubber, respectively. Figure 11 and Figure 12 As can be seen, when the friction layer is made of breathable silicone rubber, the output voltage range is -250V to 400V, and the output current is -12μA to 13μA. When the friction layer is made of pure silicone rubber (i.e., silicone rubber without a porous structure), the output voltage is -150V to 200V, and the output current is -6μA to 8μA. Therefore, when the friction layer of this embodiment uses breathable silicone rubber, its power generation performance is improved.

[0101] It should be noted that, in the first mode of static electricity generation, the first friction assembly 11 and the third friction assembly 21 are used as examples. There is a certain distance between the first friction layer 112 of the first friction assembly 11 and the third friction layer 212 of the third friction assembly 21, at which point the voltage is 0. When the human body makes mechanical movement, the two come into contact, generating an instantaneous voltage of 250V. When they separate, an instantaneous voltage of -150V is generated. Therefore, a voltage of -150V to 200V can be output. Furthermore, although a negative voltage is generated, it can be converted into a positive voltage by a rectifier to provide power to the electronic device 200.

[0102] As can be seen from the above, the present invention improves the power generation performance of the triboelectric fabric 100 and increases the energy conversion rate by selecting materials and adjusting the power generation composite parameters.

[0103] like Figure 13 and Figure 14 As shown, in some embodiments, the patterned triboelectric fabric 100 may also have a three-layer power generation structure. Based on the above-described embodiment of the triboelectric fabric 100 with a two-layer power generation structure, the triboelectric fabric 100 further includes an intermediate friction element 3 located between the first power generation module 1 and the second power generation module 2.

[0104] The intermediate friction component 3 is made of at least one of the following: insulating woven fabric, insulating knitted fabric, insulating breathable polymer, insulating breathable polymer doped composite, and insulating non-breathable polymer. Specifically, the insulating woven fabric can be at least one of woven cotton, woven nylon, wool, and polyester; the insulating knitted fabric can be at least one of knitted cotton, knitted nylon, wool, and polyester. The breathable polymer can be at least one of nitrile rubber, silicone rubber, and polyurethane with a breathable, interconnected porous structure. The breathable polymer doped composite can be a polymer doped with an insulating material capable of generating electricity through friction and having a breathable, interconnected porous structure, such as breathable nitrile rubber, silicone rubber, and polyurethane doped with the aforementioned insulating material. The non-breathable polymer can be at least one of non-breathable nitrile rubber, silicone rubber, and polyurethane. Those skilled in the art can select the appropriate material based on the actual situation, and no special limitation is made here.

[0105] The charging sequence of the intermediate friction element 3 is at least different from that of the first friction layer 112 and the third friction layer 212, thus generating more static electricity. For example, the first friction layer 112 and the third friction layer 212 are both electropositive compared to the intermediate friction element 3, while the intermediate friction element 3 is electronegative. The charging sequence of the intermediate friction element 3 can be different from that of the second friction layer 122 and the fourth friction layer 222; no special limitation is made here.

[0106] An intermediate friction element 3 is placed between the first power generation module 1 and the second power generation module 2 to increase charge transfer. In actual use, when the triboelectric fabric 100 is subjected to external force or wind during human movement, the friction layers of the first power generation module 1 and the second power generation module 2 respectively experience vertical contact and horizontal sliding friction with the intermediate friction element 3. When the external force is removed, the first power generation module 1, the second power generation module 2, and the intermediate friction element 3 experience vertical separation and reverse horizontal sliding friction. As the first power generation module 1, the second power generation module 2, and the intermediate friction element 3 continuously come into contact and rub against each other, a potential difference is generated between the electrode layers of the first power generation module 1 and the second power generation module 2, thereby generating electrical energy output. Because the intermediate friction element 3 increases charge transfer, it also increases the amount of electrical energy output. Figure 15As shown, the triboelectric fabric 100 with intermediate friction element 3 outputs the generated electrical energy to the electronic device 200.

[0107] In some embodiments, the first substrate 10 of the first power generation module 1 and the second substrate 20 of the second power generation module 2, as well as the first substrate 10 of the first power generation module 1, the second substrate 20 of the second power generation module 2, and the intermediate friction element 3, can all be joined together by sewing (e.g., machine sewing) or by bonding the edges to form a triboelectric fabric 100. The electrode layer and friction layer of each power generation module can be patterned and then sewn onto the corresponding substrate, which will not be elaborated here.

[0108] In summary, the patterned triboelectric fabric 100 of this embodiment, due to the patterning of the first friction component 11 and the second friction component 12, allows control over the area values ​​of the first pattern P1, the second pattern P2, and the gap between them. This enables the determination of the triboelectric fabric's power generation composite parameters. Based on these parameters, the power generation performance of the triboelectric fabric 100 can be quantitatively controlled, thereby improving power generation performance and energy conversion efficiency. Simultaneously, the patterning of the first and second friction components 11 and 12 makes the fabric softer, improving wearing comfort and saving materials. Furthermore, since the first and second friction components 11 and 12 are directly formed on the first substrate 10, the manufacturing process is simplified, facilitating mass production and reducing costs.

[0109] This disclosure also provides a method for preparing a patterned triboelectric fabric 100, which is used to prepare the patterned triboelectric fabric 100 described in any of the above embodiments. Figure 16 As shown, the method includes steps S151 to S153.

[0110] S151: Provide a first substrate 10, wherein the first substrate 10 is a non-conductive material.

[0111] S152: A first friction component 11 is formed on the first substrate 10. The first friction component 11 has a first pattern P1 and includes a first electrode layer 111 and a first friction layer 112 stacked sequentially from the first substrate 10.

[0112] S153: A second friction component 12 is formed on the first substrate 10. The second friction component 12 is isolated from the first friction component 11 by a gap. The second friction component 12 has a second pattern P2. The second friction component 12 includes a second electrode layer 121 and a second friction layer 122 stacked sequentially from the first substrate 10.

[0113] In the above method, the first friction component 11 and the second friction component 12 can be patterned and then combined to the first substrate 10 and the second substrate 20 by sewing (e.g., machine sewing) or bonding. The materials of the first substrate 10, the first electrode layer 111, the first friction layer 112, the second electrode layer 121 and the second friction layer 122 are the same as those in the embodiment of the triboelectric fabric 100 described above.

[0114] In some embodiments, the first friction component 11 and / or the second friction component 12 can be a breathable silicone rubber composite conductive fabric. Taking the first friction component 11 as an example, the first electrode layer 111 is a conductive fabric, such as a copper-nickel alloy cloth, and the first friction layer 112 is breathable silicone rubber. (See reference...) Figure 16 In S152, the formation of the first friction assembly 11 on the first substrate 10 includes the following components A to E.

[0115] A: Use oxygen or air plasma to clean conductive fabrics.

[0116] This involves pretreating the conductive fabric using oxygen or air plasma for surface treatment. The power is controlled between 30 and 100W, and the time is controlled between 30 seconds and 5 minutes. For example, treating for 5 minutes at 30W power or 2 minutes at 80W power can increase the adhesion of the conductive fabric surface.

[0117] B: Preparation of silicone rubber emulsion includes: taking 0.8 to 1.2 parts of polydimethylsiloxane, stirring, and adding 0.4 to 0.6 parts of polydimethylsiloxane with a viscosity of 10 cs to 200 cs, 0.8 to 1.2 parts of dibutyl phthalate and 0.8 to 1.2 parts of water-soluble salt with an average particle size of 500 nm to 500 μm during stirring, and mechanically stirring to mix evenly to form silicone rubber emulsion.

[0118] In this embodiment, polydimethylsiloxane 184 can be used, with a prepolymer to crosslinking agent ratio of (5:1) to (20:1). In some embodiments, the ratio can be 10:1, 15:1, or 18:1, which can be selected by those skilled in the art according to the actual situation. Since polydimethylsiloxane 184 is readily available, its specific composition will not be described here. In addition to the two values ​​mentioned above, its parts can also be 0.9 parts, 1.0 parts, or 1.1 parts. In addition to the two values ​​mentioned above, the parts of polydimethylsilicone oil can also be 0.5 parts, and its viscosity can also be 50 cs, 80 cs, 100 cs, 150 cs, or 180 cs. In addition to the two values ​​mentioned above, the parts of dibutyl phthalate can also be 0.9 parts, 1.0 parts, or 1.1 parts. The water-soluble salt can be at least one of sodium chloride, sodium carbonate, sodium bicarbonate and potassium chloride, and the particle size of the water-soluble salt can be 800 nm, 1 μm, 50 μm, 100 μm, 200 μm, 300 μm and 400 μm, and the water-soluble fraction can be 0.9 parts, 1.0 parts and 1.1 parts.

[0119] It should be noted that the above figures are all volume parts, and the figures are not limited to the specific values ​​given in the examples above. In the embodiments of this disclosure, the polydimethyl silicone oil, dibutyl phthalate, and water-soluble salt are all pore-forming agents, dispersed in the silicone rubber coating emulsion, and subsequently removed to form a breathable porous structure.

[0120] C: The silicone rubber emulsion is coated onto a template to form a coating with a thickness of 0.25 mm to 1 mm. After standing to remove air bubbles and level the surface, it is placed in an oven at 70°C to 80°C for a semi-crosslinking reaction for 8 to 12 minutes until the emulsion no longer has fluidity. The conductive fabric is then placed on the semi-crosslinked coating and placed in an oven at 85°C to 100°C for a complete crosslinking reaction for 0.8 to 1.2 hours. The coating forms silicone rubber. The silicone rubber and conductive fabric are then demolded from the glass template to form a silicone rubber composite conductive fabric.

[0121] In addition to the two values ​​mentioned above, the coating thickness can also be 0.5 mm, 0.6 mm, or 0.8 mm. The temperature for the semi-crosslinking reaction can also be 75°C, and the reaction time can be 9 min, 10 min, or 11 min, in addition to the values ​​mentioned above. The temperature for the crosslinking reaction can also be 90°C or 95°C, and the reaction time can be 0.9 h, 1 h, or 1.1 h, in addition to the values ​​mentioned above. Those skilled in the art can choose according to the actual situation, and no special limitations are made here. After the above crosslinking reaction, the silicone rubber emulsion forms a solid silicone rubber containing a pore-forming agent on the conductive fabric.

[0122] D: The silicone rubber composite conductive fabric is cleaned with ethanol under stirring for 1-5 hours to remove polydimethyl silicone oil and dibutyl phthalate. Then, the silicone rubber composite conductive fabric is ultrasonically cleaned with water to remove water-soluble salt particles. Finally, it is dried to obtain a breathable silicone rubber composite conductive fabric. In this fabric, the breathable silicone rubber is the first friction layer 112, and the conductive fabric is the first electrode layer 111.

[0123] In addition to the two extreme values ​​mentioned above, the cleaning time using ethanol under stirring can also be 1.5h, 2h, 2.5h, 3h, 3.5h, or 4h. When using water for ultrasonic cleaning of silicone rubber composite conductive fabrics, the water should be changed every hour, repeated 2-5 times. Two of these cleaning cycles can be accelerated using stirring or ultrasonic vibration. After cleaning with ethanol and water, the pore-forming agents in the silicone rubber are completely removed, and pore structures are formed in their original locations, such as... Figure 10 As shown, using polydimethyl silicone oil, dibutyl phthalate, and water-soluble salts as pore-forming agents can create multiple interconnected pore structures in silicone rubber. These pore structures, which can penetrate in certain directions, connect with conductive fabrics to form breathable channels, significantly increasing the breathability of the silicone rubber to 80 mm / s and enhancing wearing comfort. The breathability can be adjusted by controlling the porosity, such as by changing the amount of pore-forming agent.

[0124] E: The breathable silicone rubber composite conductive fabric is bonded to the first substrate 10.

[0125] The breathable silicone rubber composite conductive fabric can be bonded to the first substrate 10 by sewing or bonding, which will not be elaborated here.

[0126] In some embodiments, when the friction layer of the first power generation module 1 is made of breathable silicone rubber, the friction layer of the second power generation module 2 can be made of woven nylon fabric. The first power generation module 1 and the second power generation module 2 can be combined by sewing to form a triboelectric fabric 100.

[0127] In summary, the method for preparing the patterned triboelectric fabric 100 in this embodiment is simple, improves the power generation performance and energy conversion efficiency of the triboelectric fabric 100, enhances wearing comfort, and saves costs.

[0128] This disclosure also provides an electronic device, such as... Figure 18 As shown, the electronic device includes an electronic component 200 and a patterned triboelectric fabric 100 as described in any of the above embodiments. The electronic component 200 is electrically connected to the triboelectric fabric 100, so that when the triboelectric fabric 100 generates static electricity, it can provide electrical energy to the electronic component 200.

[0129] In some embodiments, the electronic device further includes a rectifier (not shown) electrically connected to the triboelectric fabric 100 and the electronic device 200 to process the electrical signals generated by the triboelectric fabric 100 to provide power to the electronic device 200.

[0130] In some embodiments, the electronic device 200 and the rectifier can be detachably connected to the triboelectric fabric 100, so that damage to the electronic device 200 and the rectifier can be avoided when the triboelectric fabric 100 is washed.

[0131] In some embodiments, a triboelectric fabric 100 can be connected to one or more electronic devices 200. Of course, multiple triboelectric fabrics 100 can also be connected to one electronic device 200 at the same time. Those skilled in the art can make the settings according to the power generation capacity of the triboelectric fabric 100 and the power required by the electronic device 200, without any special limitations here.

[0132] In some embodiments, the electronic device 200 may be an LED light, a control circuit, a GDS positioning device, or a Bluetooth device, without any particular limitation.

[0133] This disclosure also provides a power-generating garment, such as... Figure 19 and 20 As shown, the power-generating garment includes a garment body 300, at least a portion of which is a patterned triboelectric fabric 100 as described in any of the above embodiments.

[0134] In some embodiments, such as Figure 19 As shown, a portion of the power-generating garment is a patterned triboelectric fabric 100. In other embodiments, such as Figure 20 As shown, the entire power-generating garment is a patterned triboelectric fabric 100. The patterned triboelectric fabric 100 of the power-generating garment is electrically connected to the electronic device 200, providing power to the electronic device 200.

[0135] In some embodiments, the power-generating clothing can be a power-generating skirt, a power-generating top, power-generating pants, etc., as long as the clothing can generate electricity through friction under the action of external force, and no special limitation is made here.

[0136] In summary, the patterned triboelectric fabric 100, its preparation method, electronic device, and power-generating garment disclosed in this embodiment allow for control over the area values ​​of the first pattern P1, the second pattern P2, and the gap between the first pattern P1 and the second pattern P2, thus determining the power generation composite parameters of the triboelectric fabric. Based on these parameters, the power generation performance of the triboelectric fabric 100 can be quantitatively controlled. Furthermore, by selecting and improving the materials of the triboelectric fabric 100, its power generation performance and energy conversion rate are enhanced, thereby improving the power generation efficiency of the power-generating garment. Additionally, the patterning of the triboelectric fabric 100 and the selection of breathable materials make the fabric softer, improving comfort, breathability, and washability. The preparation process is simple, enabling large-scale production and reducing costs.

[0137] It should be understood that this disclosure is not limited to the detailed structure and arrangement of the components presented in this specification. This disclosure is capable of other embodiments and can be implemented and performed in various ways. The foregoing variations and modifications fall within the scope of this disclosure. It should be understood that this disclosure, as disclosed and defined in this specification, extends to all alternative combinations of two or more individual features mentioned or apparent in the text and / or drawings. All these different combinations constitute multiple alternative aspects of this disclosure. The embodiments described in this specification illustrate the best known mode for implementing this disclosure and will enable those skilled in the art to utilize this disclosure.

Claims

1. A patterned triboelectric fabric, characterized in that, Includes a first power generation module; the first power generation module includes: A first substrate, wherein the first substrate is a non-conductive material; a first friction assembly, disposed on the first substrate, wherein the first friction assembly includes a first electrode layer and a first friction layer sequentially stacked from the first substrate; A second friction assembly is disposed on the first substrate, and the second friction assembly includes a second electrode layer and a second friction layer stacked sequentially from the first substrate. The first friction component and the second friction component are isolated from each other by a gap, and the first friction component has a first pattern and the second friction component has a second pattern. The power generation composite parameters of the triboelectric fabric are determined based on the area of ​​the first pattern, the area of ​​the second pattern, and the area of ​​the gap between the first pattern and the second pattern. The power generation of the triboelectric fabric is adjusted by adjusting the power generation composite parameters. The patterned triboelectric fabric further includes a second power generation module, the second power generation module comprising: The second substrate is a non-conductive material; A third friction assembly is disposed on the second substrate, the third friction assembly comprising a third electrode layer and a third friction layer stacked sequentially from the second substrate; A fourth friction assembly is disposed on the second substrate, the fourth friction assembly comprising a fourth electrode layer and a fourth friction layer sequentially stacked from the second substrate; The third friction component and the fourth friction component are isolated from each other by a gap, and the third friction component has the first pattern, while the fourth friction component has the second pattern. The second power generation module is disposed opposite to the first power generation module. In a direction perpendicular to the first base, the first friction component and the third friction component are disposed opposite to each other and have a certain distance or slight contact. The second friction component and the fourth friction component are disposed opposite to each other and have a certain distance or slight contact. Under the action of external force, the first friction layer of the first friction component and the third friction layer of the third friction component are in vertical contact or in horizontal sliding friction, and the second friction layer of the second friction component and the fourth friction layer of the fourth friction component are in vertical contact or in horizontal sliding friction to generate static electricity. Wherein, the projection of the third friction component on the first substrate coincides with the first friction component, and the projection of the fourth friction component on the first substrate coincides with the second friction component.

2. The patterned triboelectric fabric according to claim 1, characterized in that, The power generation composite parameters are obtained according to the following formula: Wherein, D is the power generation composite parameter, S1 is the area of ​​the first pattern, S2 is the area of ​​the second pattern, and S3 is the area of ​​the gap between the first pattern and the second pattern; and / or The triboelectric fabric generates the most electricity when the value of the power generation composite parameter is 0.

9.

3. The patterned triboelectric fabric according to claim 1, characterized in that, The first friction layer and the second friction layer have the same first electrification sequence, and the third friction layer and the fourth friction layer have the same second electrification sequence, but the first electrification sequence and the second electrification sequence are different; and / or The first electrode layer and the second electrode layer are connected; the third electrode layer and the fourth electrode layer are connected.

4. The patterned triboelectric fabric according to claim 1, characterized in that, The first friction layer and the second friction layer have different charging sequences, the third friction layer has different charging sequences from the first friction layer and the fourth friction layer, and the fourth friction layer has different charging sequences from the second friction layer.

5. The patterned triboelectric fabric according to claim 1, characterized in that, The projection of the third friction component on the first substrate coincides with that of the first friction component, and the projection of the fourth friction component on the first substrate coincides with that of the second friction component.

6. The patterned triboelectric fabric according to claim 1, characterized in that, There is a first gap between the first friction component and the second friction component; there is a second gap between the third friction component and the fourth friction component.

7. The patterned triboelectric fabric according to claim 6, characterized in that, The first power generation module further includes: a first insulating spacer filling the first gap, wherein the size of the first insulating spacer is not greater than the size of the first friction component and the second friction component in the direction perpendicular to the first substrate; The second power generation module further includes: a second insulating spacer filling the second gap, wherein the size of the second insulating spacer is not greater than the size of the third friction component and the fourth friction component in a direction perpendicular to the second substrate.

8. The patterned triboelectric fabric according to claim 1, characterized in that, The first pattern and the second pattern each have multiple strip-shaped branches; or The first pattern and the second pattern each have multiple strip-shaped branches, and each strip-shaped branch has multiple circles, triangles, quadrilaterals, or polygons spaced apart; wherein, one end of the multiple strip-shaped branches of the first pattern is connected, and one end of the multiple strip-shaped branches of the second pattern is connected; or Both the first pattern and the second pattern are circular; or Both the first pattern and the second pattern are triangles, quadrilaterals, polygons or circles.

9. The patterned triboelectric fabric according to claim 1, characterized in that, The first electrode layer, the second electrode layer, the third electrode layer, and the fourth electrode layer are each made of at least one of conductive fabric and conductive polymer; and / or The first friction layer, the second friction layer, the third friction layer and the fourth friction layer are made of at least one of insulating woven fabric, insulating knitted fabric, breathable polymer, breathable polymer doped composite and non-breathable polymer, wherein the breathable polymer and the breathable polymer doped composite have multiple through-pore structures.

10. The patterned triboelectric fabric according to claim 1, characterized in that, Also includes: An intermediate friction element is located between the first power generation module and the second power generation module; The intermediate friction component is made of at least one of the following: insulating woven fabric, insulating knitted fabric, breathable polymer, breathable polymer doped composite, and non-breathable polymer; and / or The electrification sequence of the intermediate friction element is different from that of the first friction layer and the third friction layer.

11. A method for preparing a patterned triboelectric fabric, characterized in that, The method for preparing the patterned triboelectric fabric according to any one of claims 1 to 10 includes forming a first power generation module, comprising: A first substrate is provided, wherein the first substrate is a non-conductive material; A first friction component is formed on the first substrate. The first friction component has a first pattern and includes a first electrode layer and a first friction layer sequentially stacked from the first substrate. A second friction component is formed on the first substrate, the second friction component being isolated from the first friction component by a gap, the second friction component having a second pattern, and the second friction component including a second electrode layer and a second friction layer sequentially stacked from the first substrate.

12. The method according to claim 11, characterized in that, The first electrode layer is a conductive fabric, and the first friction layer is a breathable silicone rubber. A first friction assembly is formed on the first substrate, comprising: The conductive fabric is cleaned using oxygen or air plasma; The preparation of a silicone rubber emulsion includes: taking 0.8-1.2 parts of polydimethylsiloxane, stirring it, and adding 0.4-0.6 parts of polydimethylsiloxane with a viscosity of 10cs-200cs, 0.8-1.2 parts of dibutyl phthalate, and 0.8-1.2 parts of water-soluble salt with an average particle size of 500nm-500μm during the stirring process, and stirring evenly to form the silicone rubber emulsion; The silicone rubber emulsion is coated onto a template to form a coating with a thickness of 0.25 mm to 1 mm. After standing to remove air bubbles and level the surface, it is placed in an oven at 70°C to 80°C for a semi-crosslinking reaction for 8 to 12 minutes. The conductive fabric is then placed on the semi-crosslinked coating and placed in an oven at 85°C to 100°C for a crosslinking reaction for 0.8 to 1.2 hours. The coating forms silicone rubber. The silicone rubber and the conductive fabric are then demolded from the template to form a silicone rubber composite conductive fabric. The silicone rubber composite conductive fabric is cleaned with ethanol under stirring for 1.5 to 3 hours, then ultrasonically cleaned with water, and then dried to obtain a breathable silicone rubber composite conductive fabric; wherein, the breathable silicone rubber in the breathable silicone rubber composite conductive fabric is the first friction layer, and the conductive fabric is the first electrode layer. The breathable silicone rubber composite conductive fabric is bonded to the first substrate.

13. An electronic device, characterized in that, include: Electronic devices; as well as The patterned triboelectric fabric as described in any one of claims 1 to 10 is electrically connected to the electronic device to provide electrical energy to the electronic device.

14. A power-generating garment, characterized in that, include: The garment body, at least a portion of which is a patterned triboelectric fabric as described in any one of claims 1 to 10.

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