Triboelectric nanogenerator, electronic float and method for preparing triboelectric nanogenerator

Abstract

This invention provides a triboelectric nanogenerator suitable for electronic fishing floats, comprising: a first-layer structure and a friction slider. The first-layer structure includes: a triboelectric dielectric layer; and an electrode layer disposed on one side of the triboelectric dielectric layer and in contact with it. The electrode layer includes a first electrode and a second electrode respectively connected to two ends of a load. The first and second electrodes are used to transfer the charge generated by the triboelectric dielectric layer to supply power to the load, wherein the load is a warning element of the electronic fishing float. The friction slider is disposed on the other side of the triboelectric dielectric layer and moves relative to the triboelectric dielectric layer under the action of an external force, causing the triboelectric dielectric layer to generate charge. This triboelectric nanogenerator can convert the mechanical energy generated by the external force acting on the friction slider into electrical energy to power the warning element of the electronic fishing float, thereby eliminating the need for an external power source for the warning element.

Description

Technical Field

[0001] This invention relates to the field of nanotechnology, specifically to a triboelectric nanogenerator, an electronic fish float, and a method for preparing the triboelectric nanogenerator. Background Technology

[0002] Fishing by observation is a beloved ancient tradition, and the float is the primary tool used to detect when a fish bites. By observing the float's movement, anglers can not only determine when to set the hook based on the fish's feeding behavior, but also identify the type of fish that is biting.

[0003] Therefore, fishing floats are an important tool for determining the success of fishing. Traditional fishing floats are mostly made of lightweight materials, while modern fishing floats are often made of chemicals, bird feathers, wood, or bamboo. Their performance varies, and their shapes are also diverse. Based on their weight and buoyancy, fishing floats can be divided into hollow floats and solid floats. Hollow floats are lighter, have greater buoyancy, and are more sensitive; while solid floats are more stable but less sensitive. Furthermore, based on their shape, they can be divided into horizontal floats and vertical floats. Horizontal floats, often called seven-star floats, have several floats scattered on the water's surface. They are highly sensitive and have minimal vibration when the rod is lifted, but are not suitable for fishing in rough seas. Vertical floats stand upright in the water and commonly come in rod, cone, round, and top-shaped forms. With technological advancements, electronic fishing floats have emerged, but these usually rely on an external power source, making their structure complex. Summary of the Invention

[0004] The purpose of this invention is to provide a triboelectric nanogenerator to solve the problem of self-powering devices such as electronic fishing floats.

[0005] To achieve the above objectives, the present invention provides a triboelectric nanogenerator suitable for electronic fishing floats, comprising: a first-layer structure and a triboelectric slider. The first-layer structure includes: a triboelectric dielectric layer; and an electrode layer disposed on one side of the triboelectric dielectric layer and in contact with it. The electrode layer includes a first electrode and a second electrode respectively connected to two ends of a load. The first and second electrodes are used to transfer the charge generated by the triboelectric dielectric layer to supply power to the load, wherein the load is a warning device for the electronic fishing float. The triboelectric slider is disposed on the other side of the triboelectric dielectric layer and moves relative to the triboelectric dielectric layer under the action of an external force to generate charge on the triboelectric dielectric layer.

[0006] Preferably, the triboelectric nanogenerator further includes a second layer structure, which has the same composition as the first layer structure; wherein, the triboelectric slider is disposed between the triboelectric dielectric layers of the first layer structure and the second layer structure respectively, and moves relative to the triboelectric dielectric layer of one of the first layer structure and the second layer structure under the action of external force, so that the corresponding triboelectric dielectric layer generates charge.

[0007] Preferably, the position of the second layer structure is adapted to the position of the first layer structure so that the two are arranged symmetrically.

[0008] Preferably, the first electrodes of the first layered structure and the second layered structure are connected, and the second electrodes of the first layered structure and the second layered structure are connected.

[0009] Preferably, the friction slider and the friction dielectric layer are made of materials with opposite triboelectric properties.

[0010] Preferably, the triboelectric layer is an insulating polymer material.

[0011] Preferably, the insulating polymer material is polytetrafluoroethylene or polylactic acid-glycolic acid copolymer, and the friction slider is made of nylon or any metal material.

[0012] Preferably, the first electrode and the second electrode are made of any metal material or ITO material.

[0013] Preferably, the thickness of the triboelectric layer is between 1 micrometer and 2000 micrometers.

[0014] Preferably, the thickness of the triboelectric layer is 100 micrometers.

[0015] The present invention also provides an electronic fishing float, the electronic fishing float comprising: a float shell; a warning element disposed within the float shell for emitting an electronic warning signal in a powered state; and a triboelectric nanogenerator as described above disposed within the float shell; wherein the triboelectric nanogenerator's friction slider is connected to the fishing line to convert the mechanical energy generated by pulling the fishing line into electrical energy, and the first electrode and the second electrode are respectively connected to both ends of the warning element to supply power to the warning element.

[0016] Preferably, the warning device is a light-based reminder device.

[0017] The present invention also provides a method for fabricating a triboelectric nanogenerator, comprising: fabricating a triboelectric dielectric layer; depositing an electrode layer made of any metal material on one side of the triboelectric dielectric layer using magnetron sputtering; dividing the electrode layer into a symmetrical first electrode and a second electrode using a tape of a set width as a mask during the magnetron sputtering process, wherein the triboelectric dielectric layer and the electrode layer form the first layered structure; and disposing the triboelectric slider on the other side of the triboelectric dielectric layer.

[0018] Preferably, the method for fabricating the triboelectric nanogenerator further includes: fabricating a second layered structure with the same composition as the first layered structure; symmetrically arranging the first layered structure and the second layered structure; disposing the friction slider between the friction medium layers of the first layered structure and the second layered structure; and connecting the first electrodes of the first layered structure and the second layered structure respectively with wires, and connecting the second electrodes of the first layered structure and the second layered structure respectively with wires.

[0019] Through the above technical solution, the triboelectric nanogenerator of the present invention can convert the mechanical energy generated by external force acting on the friction slider into electrical energy to power loads such as the warning device of the electronic fishing float, thereby eliminating the need for an external power source for the load. Furthermore, the triboelectric nanogenerator based on the present invention can improve the electronic fishing float, making it independent of an external power source, and its structure is simple and practical.

[0020] Other features and advantages of the embodiments of the present invention will be described in detail in the following detailed description section. Attached Figure Description

[0021] The accompanying drawings are provided to further illustrate embodiments of the present invention and form part of the specification. They are used together with the following detailed description to explain the embodiments of the present invention, but do not constitute a limitation thereof. In the drawings:

[0022] Figure 1 This is a schematic diagram of the structure of the triboelectric nanogenerator provided in the first embodiment of the present invention;

[0023] Figure 2 This is a schematic diagram of the power generation process of the triboelectric nanogenerator in the first embodiment of the present invention;

[0024] Figure 3 This is a schematic diagram of the structure of the triboelectric nanogenerator provided in the second embodiment of the present invention;

[0025] Figure 4 This is a schematic diagram of the voltage output signal of the triboelectric nanogenerator in the example corresponding to the second embodiment of the present invention;

[0026] Figure 5This is a schematic diagram of the capacitor charging curve of the triboelectric nanogenerator in the example corresponding to the second embodiment of the present invention;

[0027] Figure 6 This is a schematic diagram of the voltage output signal of the triboelectric nanogenerator under different external forces in the example corresponding to the second embodiment of the present invention;

[0028] Figure 7 This is a schematic diagram of the structure of an electronic fishing float provided in the third embodiment of the present invention; and

[0029] Figure 8 This is a schematic flowchart of the method for preparing a triboelectric nanogenerator provided in the fourth embodiment of the present invention.

[0030] Explanation of reference numerals in the attached figures

[0031] 100 First-layer structure 200 Second-layer structure

[0032] 101 Triboelectric layer 102 First electrode

[0033] 103 Second electrode 104 Friction slider

[0034] 105 Load 301 Triboelectric Nanogenerator

[0035] 302 Warning Item; 303 Fish Float Shell Detailed Implementation

[0036] The specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit the scope of the present invention.

[0037] Current electronic fishing floats rely on external power sources, resulting in complex structures. Therefore, this invention provides a triboelectric nanogenerator that can be applied to electronic fishing floats, enabling them to be self-powered. Embodiments of this invention are described below with reference to the accompanying drawings.

[0038] Figure 1This is a schematic diagram of the structure of a triboelectric nanogenerator provided in the first embodiment of the present invention. This triboelectric nanogenerator is applicable, for example, to an electronic fishing float, and includes: a first-layer structure 100 and a friction slider 104. The first-layer structure 100 includes: a triboelectric dielectric layer 101 and an electrode layer. The electrode layer is disposed on one side of the triboelectric dielectric layer 101 and in contact with it. The electrode layer includes a first electrode 102 and a second electrode 103 respectively connected to both ends of a load 105. The first electrode 102 and the second electrode 103 are used to transfer the charge generated by the triboelectric dielectric layer 101 to supply power to the load 105, where the load 105 is, for example, a warning element of an electronic fishing float. The friction slider 104 is disposed on the other side of the triboelectric dielectric layer 101 and moves relative to the triboelectric dielectric layer 101 under the action of an external force to generate charge in the triboelectric dielectric layer. It should be noted that the triboelectric nanogenerator of this embodiment can also be applied to other devices or scenarios besides electronic fishing floats; that is, the load 105 can be various, for example in… Figure 1 The resistor R is used to represent the electronic fishing float warning device in this embodiment of the invention.

[0039] The triboelectric nanogenerator provided in the first embodiment of the present invention can convert the mechanical energy generated by external force (such as the force of a fishing line being pulled) acting on the friction slider 104 into electrical energy to power the load 105, thereby enabling the load 105 to operate without an external power source. The following describes the process in conjunction with... Figure 2 To further explain the power generation process of this triboelectric nanogenerator, Figure 2 This is a schematic diagram of the power generation process of the triboelectric nanogenerator in the first embodiment of the present invention. Figure 1 and Figure 2 As shown, the friction slider 104 and the triboelectric layer 101 are preferably made of materials with opposite triboelectric properties, for example... Figure 2 The triboelectric layer 101 shown is made of a positively charged material, and the triboelectric slider 104 is made of a negatively charged material. When the triboelectric slider 104 slides relative to the triboelectric layer 101 under the action of an external force to generate relative friction, a negative charge is generated on the surface of the triboelectric layer 101. This negative charge is transferred between the first electrode 102 and the second electrode 103 to achieve local charge balance. At this time, an induced current is generated between the first electrode 102 and the second electrode 103. For example... Figure 2As shown, when the friction slider 104 moves from left to right relative to the triboelectric layer 101, the negative charge generated by friction is transferred from the second electrode 103 to the first electrode 102. The corresponding induced current flows through the first electrode 102 to the second electrode 103. When the friction slider 104 reaches the rightmost end and stops moving, the induced current stops flowing. When the friction slider 104 moves to the left relative to the triboelectric layer 101, a reverse induced current is generated. Accordingly, the reciprocating motion of the friction slider 104 relative to the triboelectric layer 101 generates alternating current between the first electrode 102 and the second electrode 103 to supply power to the load 105.

[0040] In summary, the triboelectric nanogenerator of the first embodiment of the present invention can convert mechanical energy into electrical energy and is suitable for integration into devices such as electronic fishing floats to achieve self-powered devices, thereby simplifying the device structure.

[0041] Figure 3 This is a schematic diagram of the structure of the triboelectric nanogenerator provided in the second embodiment of the present invention, combined with... Figure 1 , Figure 2 and Figure 3 As shown, the triboelectric nanogenerator of the second embodiment of the present invention further includes, based on the triboelectric nanogenerator of the first embodiment, a second layer structure 200, which has the same composition as the first layer structure 100. A friction slider 104 is disposed between the triboelectric dielectric layers 101 of both the first layer structure 100 and the second layer structure 200, and under the action of an external force, it moves relative to the triboelectric dielectric layer 101 of either the first layer structure 100 or the second layer structure 200 to generate charge on the corresponding triboelectric dielectric layer 101. It should be noted that the fact that the second layer structure 200 has the same composition as the first layer structure 100 includes ensuring that the assembly and area of ​​the corresponding components of both are consistent.

[0042] Preferably, the position of the second layer structure 200 is adapted to the position of the first layer structure 100 so that the two are arranged symmetrically. The first electrode 102 of the first layer structure 100 and the second layer structure 200 are connected, and the second electrode 103 of the first layer structure 100 and the second layer structure 200 are connected to transfer the charge generated by their respective triboelectric layers 101 to supply power to the load 105.

[0043] For the triboelectric nanogenerator of the second embodiment of the present invention, combined with Figure 2As shown, when the friction slider 104 moves between the respective triboelectric layers 101 of the first layer structure 100 and the second layer structure 200 under the action of an external force, it locally rubs against its respective triboelectric layer 101, generating negative charges. These negative charges are transferred to induce currents between the respective first electrodes 102 and second electrodes 103. Under the action of an external force, the friction slider 104 reciprocates relative to each triboelectric layer 101, causing an alternating current to be generated between the corresponding first electrodes 102 and second electrodes 103 of each triboelectric layer 101, supplying power to the load 105.

[0044] In a preferred embodiment, to make the triboelectric nanogenerator more suitable for electronic fish floats, the triboelectric dielectric layer 101 can be an insulating polymer material, preferably polytetrafluoroethylene (PTFE) or poly(lactic-co-glycolic acid) (PLGA). Furthermore, the thickness of the triboelectric dielectric layer 101 can be between 1 micrometer and 2000 micrometers, preferably 100 micrometers. The friction slider 104 can be made of nylon or any metal, such as magnesium. The first electrode 102 and the second electrode 103 serve as the output electrodes of the triboelectric nanogenerator and can be made of any metal or ITO material, such as copper or iron. Further, the areas of the first electrode 102 and the second electrode 103 are preferably the same size.

[0045] The following is combined with Figure 3 , Figure 4 , Figure 5 and Figure 6 The power generation capability of the triboelectric nanogenerator provided in the second embodiment of the present invention is illustrated through a practical application example. In this example, the triboelectric nanogenerator is as follows: Figure 3 In the structure shown, the two triboelectric dielectric layers 101 are made of polylactic acid-glycolic acid copolymer films, the triboelectric slider 104 is made of magnesium metal, and the two first electrodes 102 and second electrodes 103 are 100 nm magnesium metal electrodes. Based on these configurations, in this example, the external force acting on the triboelectric slider 104 is set to the force generated by a linear motor drive, while data related to the power generation capability of the triboelectric nanogenerator are measured using an electrometer (e.g., an electrometer of model Keithley 6514 and Keithley 6517B).

[0046] In this example, the linear motor applies an external force to the friction slider 104. The friction slider 104 will generate inertial reciprocating motion between the two triboelectric layers 101 through the external force, and rub against the two triboelectric layers 101 to generate an induced current, so that the two first electrodes 102 and the second electrode 103 generate a potential difference, that is, form a voltage. Figure 4This is a schematic diagram of the voltage output signal of the triboelectric nanogenerator in this example, where the horizontal axis represents time and the vertical axis represents the variation curve of the voltage output signal of the triboelectric nanogenerator. Figure 4 It can be seen that this triboelectric nanogenerator can output an AC voltage signal. Figure 5 This is a schematic diagram of the capacitor charging curve of the triboelectric nanogenerator in this example, where the horizontal axis represents the charging time and the vertical axis represents the voltage value of the charging capacitor. Figure 5 It can be seen that the triboelectric nanogenerator charges capacitors of different capacities. For a capacitor with a capacity of 4.7uF, the voltage value of the corresponding capacitor rises from 0V to 2V after more than 50 seconds. For a capacitor with a capacity of 10uF, the voltage value of the corresponding capacitor rises from 0V to 2V after nearly 100 seconds.

[0047] Furthermore, this example also provides a study on the power generation of the friction slider 104 under different external forces. Figure 6 This is a schematic diagram of the voltage output signal of the triboelectric nanogenerator in this example under different external forces, where the horizontal axis represents the duration of the external force applied to the friction slider 104, and the vertical axis represents the voltage value output by the triboelectric nanogenerator. Figure 6 When different accelerations are applied to the friction slider 104, and the duration of each acceleration is 10 seconds, the acceleration of the external force is 1 m / s². The corresponding output voltage is approximately 5V. As the acceleration increases, the output voltage also increases. The external acceleration is 6m / s. The corresponding output voltage is approximately 30V. Therefore, it can be seen that when different external forces with varying accelerations are applied to the friction slider 104 of the triboelectric nanogenerator, the relative motion between the friction slider 104 and the triboelectric layer 101 becomes more intense as the acceleration increases. This strengthens the friction between the friction slider 104 and the triboelectric layer 101, increases the induced current, and consequently increases the output voltage signal.

[0048] As can be seen from the above example, the triboelectric nanogenerator of the second embodiment of the present invention has the same beneficial effects as the triboelectric nanogenerator of the first embodiment. However, compared to the triboelectric nanogenerator of the first embodiment, it confines the friction slider between two triboelectric dielectric layers, thereby ensuring sufficient contact between the arbitrarily moving friction slider and the triboelectric dielectric layers, and improving the energy conversion efficiency. Furthermore, the triboelectric nanogenerator provided in this embodiment is suitable for electronic fishing floats. This triboelectric generator converts mechanical energy under different external forces into different electrical energy. The load 105 can correspond to the warning element of the electronic fishing float, which can generate different warnings, allowing the electronic fishing float to be better applied to intelligent fishing.

[0049] Figure 7This is a schematic diagram of the structure of an electronic fishing float provided in the third embodiment of the present invention, as shown below. Figure 1 , Figure 3 and Figure 7 As shown, the electronic fishing float includes: a float shell 303; a warning element 302 placed inside the float shell 303 for emitting an electronic warning signal when powered on; and the aforementioned triboelectric nanogenerator 301 placed inside the float shell 303; wherein the triboelectric nanogenerator 301 has a friction slider 104 connected to the fishing line to convert the mechanical energy generated by pulling the fishing line into electrical energy, and the first electrode 102 and the second electrode 103 are respectively connected to both ends of the warning element to supply power to the warning element.

[0050] The material of the float shell 303 can be any polymer material, and the float shell 303 can be cylindrical, ellipsoidal, spherical, disc-shaped, etc.

[0051] The warning device 302 is preferably a light-based reminder device, such as an LED light.

[0052] The electronic fishing float of the third embodiment of the present invention adopts Figure 3 Taking an LED light as an example, the triboelectric nanogenerator 301 and the warning device 302 shown are illustrated. A fishing line is connected to the friction slider 104 of the triboelectric nanogenerator 301, and two first electrodes 102 and a second electrode 103 are respectively connected to the two electrodes of the LED light. Pulling the fishing line applies an external force to the friction slider 104, causing it to reciprocate between the two triboelectric dielectric layers 101 under the combined action of this external force and its own gravity. Friction with the two triboelectric dielectric layers 101 converts mechanical energy into electrical energy, which powers the LED light through the two first electrodes 102 and the second electrode 103. The LED light then emits a light signal to provide a warning. Different external forces pulling the fishing line result in different electrical energy generated by the triboelectric nanogenerator 301, and consequently, different light signals from the LED light, allowing the electronic fishing float to be better applied to intelligent fishing.

[0053] Figure 8 This is a schematic flowchart of the preparation method of the triboelectric nanogenerator provided in the fourth embodiment of the present invention, wherein the triboelectric nanogenerator can be the triboelectric nanogenerator corresponding to the first or second embodiment of the present invention. Figure 1 and Figure 8 As shown, corresponding to the triboelectric nanogenerator of the first embodiment, the preparation method includes:

[0054] Step S401: Prepare a triboelectric dielectric layer. The triboelectric dielectric layer is, for example, a thin film made of polylactic acid-glycolic acid copolymer.

[0055] Step S402: Deposit an electrode layer made of any metal material on one side of the triboelectric layer using magnetron sputtering. Taking magnesium metal as the electrode layer material as an example, deposit a 100 nm thick layer of magnesium metal as the electrode layer on the back side of the polylactic acid-glycolic acid copolymer film using magnetron sputtering.

[0056] Step S403: During the magnetron sputtering process, a tape of a predetermined width is used as a mask to divide the electrode layer into symmetrical first and second electrodes, wherein the triboelectric layer and the electrode layer form the first layered structure. Taking a mask width of 1 mm as an example, during the magnetron sputtering process, a 1 mm wide tape is used as a mask to divide the electrode layer into symmetrical electrodes, and then cut into symmetrical shapes using a laser cutter to form the first and second electrodes.

[0057] Step S404: The friction slider is positioned on the other side of the triboelectric layer. The friction slider is made of a material with opposite charge to the triboelectric layer. Taking the triboelectric layer as an example, which is a polylactic acid-glycolic acid copolymer film, the friction slider can be made of a negatively charged material, such as a friction slider made of magnesium metal. This friction module is then positioned on the other side of the polylactic acid-glycolic acid copolymer film.

[0058] Preferably, the triboelectric nanogenerator corresponding to the second embodiment, referenced Figure 3 and Figure 8 As shown, the method for preparing the triboelectric nanogenerator further includes, in addition to the other steps of S401-S404:

[0059] Step S405: Prepare a second layered structure with the same composition as the first layered structure. The second layered structure is prepared using the same materials and steps as the first layered structure described above, and will not be repeated here.

[0060] Step S406: Arrange the first layered structure and the second layered structure symmetrically. For example, place the second layered structure prepared in the above steps parallel to the first layered structure with a triboelectric layer, and the two triboelectric layers face each other.

[0061] Step S407: The friction slider is disposed between the friction dielectric layers of the first layered structure and the second layered structure. Taking magnesium metal as an example, the friction slider is disposed between the two friction dielectric layers so that it can move between the two friction dielectric layers under the action of external force, thereby generating friction with the two friction dielectric layers respectively.

[0062] Step S408: Connect the first electrode of the first layer structure and the second layer structure respectively with a wire, and connect the second electrode of the first layer structure and the second layer structure respectively with a wire.

[0063] The above completes the fabrication of a triboelectric nanogenerator for use in electronic fish floats.

[0064] It should be noted that more details and effects related to this fourth embodiment can be found in the first, second and third embodiments described above, and will not be repeated here.

[0065] The preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the specific details of the above embodiments. Within the scope of the technical concept of the present invention, various simple modifications can be made to the technical solution of the present invention, and these simple modifications all fall within the protection scope of the present invention.

[0066] It should also be noted that the various specific technical features described in the above embodiments can be combined in any suitable manner without contradiction. To avoid unnecessary repetition, the present invention will not describe the various possible combinations separately.

[0067] Furthermore, various different embodiments of the present invention can be combined in any way, as long as they do not violate the spirit of the present invention, they should also be regarded as the content disclosed by the present invention.

Claims

1. A triboelectric nanogenerator, characterized in that, This triboelectric nanogenerator is suitable for use with electronic fishing floats and includes: A first-layer structure, comprising: Triboelectric layer; and An electrode layer is disposed on one side of the triboelectric layer and in contact with the triboelectric layer. The electrode layer includes a first electrode and a second electrode respectively connected to both ends of a load. The first and second electrodes are used to transfer the charge generated by the triboelectric layer to supply power to the load, wherein the load is a warning device of the electronic fishing float. A friction slider is disposed on the other side of the triboelectric layer and moves relative to the triboelectric layer under the action of an external force, thereby generating a charge on the triboelectric layer. The triboelectric nanogenerator further includes a second layer structure, which has the same composition as the first layer structure. The friction slider is disposed between the triboelectric layers of the first layered structure and the second layered structure, and under the action of an external force, it moves relative to the triboelectric layer of one of the first layered structure and the second layered structure, thereby generating a charge on the corresponding triboelectric layer. When the friction slider moves between the triboelectric layers of the first and second layer structures under the action of external force, it locally rubs against the triboelectric layers of each structure, generating negative charges. The negative charges are transferred to generate induced currents between the first and second electrodes of each structure.

2. The triboelectric nanogenerator according to claim 1, characterized in that, The position of the second layer structure is adapted to the position of the first layer structure so that the two are arranged symmetrically.

3. The triboelectric nanogenerator according to claim 1, characterized in that, The first electrode of each of the first layered structure and the second layered structure is connected, and the second electrode of each of the first layered structure and the second layered structure is connected.

4. The triboelectric nanogenerator according to claim 1, characterized in that, The friction slider and the friction dielectric layer are made of materials with opposite triboelectric properties.

5. The triboelectric nanogenerator according to claim 1, characterized in that, The triboelectric dielectric layer is an insulating polymer material, and the material of the triboelectric slider is nylon or any metal material.

6. The triboelectric nanogenerator according to claim 5, characterized in that, The insulating polymer material is polytetrafluoroethylene or polylactic acid-hydroxyacetic acid copolymer.

7. The triboelectric nanogenerator according to claim 1, characterized in that, The first electrode and the second electrode are made of any metallic material or ITO material.

8. The triboelectric nanogenerator according to claim 1, characterized in that, The thickness of the triboelectric layer is any value between 1 micrometer and 2000 micrometers.

9. The triboelectric nanogenerator according to claim 8, characterized in that, The thickness of the triboelectric layer is 100 micrometers.

10. An electronic fishing float, characterized in that, The electronic fishing float includes: Fish float shell; A warning element placed inside the float shell is used to emit an electronic warning signal when powered on; and The triboelectric nanogenerator according to any one of claims 1-9, placed inside the float shell; The friction slider of the triboelectric nanogenerator is connected to the fishing line to convert the mechanical energy generated by the pulling of the fishing line into electrical energy, and the first electrode and the second electrode are respectively connected to the two ends of the warning device to supply power to the warning device.

11. The electronic fishing float according to claim 10, characterized in that, The warning device is a light-based alert device.

12. A method for preparing a triboelectric nanogenerator, characterized in that, include: Preparation of triboelectric dielectric layer; An electrode layer made of any metal material is deposited on one side of the triboelectric layer using magnetron sputtering. In the magnetron sputtering process, a tape of a set width is used as a mask to divide the electrode layer into a symmetrical first electrode and a second electrode, wherein the triboelectric layer and the electrode layer form a first layer structure. as well as The friction slider is positioned on the other side of the triboelectric layer. The method for preparing the triboelectric nanogenerator further includes: Prepare a second layered structure with the same composition as the first layered structure; The first layer structure and the second layer structure are arranged symmetrically; The friction slider is disposed between the friction medium layers of the first layered structure and the second layered structure, respectively; and The first electrodes of the first layered structure and the second layered structure are connected by wires, and the second electrodes of the first layered structure and the second layered structure are connected by wires. When the friction slider moves between the triboelectric layers of the first and second layer structures under the action of external force, it locally rubs against the triboelectric layers of each structure, generating negative charges. The negative charges are transferred to generate induced currents between the first and second electrodes of each structure.

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