A high-efficiency rotating nanogenerator based on unidirectional dynamic charge compensation

Abstract

This invention proposes a high-efficiency rotating nanogenerator based on unidirectional dynamic charge compensation. The device comprises a standalone layered nanogenerator for converting mechanical energy into electrical energy; a charge generation and transport module; and a drive system. The charge generation and transport module, based on triboelectric charging and electrostatic induction, uses a unidirectional charge transport path to provide unidirectional dynamic charge compensation for the standalone layered nanogenerator, enabling continuous charge generation and accumulation. The drive system provides the necessary structural support and mechanical driving force for the standalone layered nanogenerator and the charge generation and transport module. This invention achieves continuous charge accumulation at the friction interface through unidirectional charge transport, effectively breaking through the theoretical threshold limit of surface charge density in conventional nanogenerators and significantly improving output performance. The charge generation and transport module is physically separated from the standalone layered nanogenerator and functionally complements it, facilitating manufacturing and maintenance, and enhancing system structural flexibility and integration compatibility.

Description

Technical Field

[0001] The present invention relates to the field of nano-new energy and mechanical energy collection technology, and in particular to a high-efficiency rotating nanogenerator based on unidirectional dynamic charge compensation. Background Art

[0002] Triboelectric nanopower generation technology is based on the principles of triboelectric charging and electrostatic induction. It generates static charge between two surfaces in contact or friction, at least one of which is made of insulating material. When the contact interface separates, the asymmetric distribution of surface charge induces a potential difference, which in turn forms an internal electric field between the sensing electrodes that drives the directional migration of free charges, thereby achieving the collection of mechanical energy and the output of electrical energy. This technology is particularly suitable for capturing environmental mechanical energy in the form of low-frequency vibration or intermittent displacement, and has significant advantages such as simple structure, low cost, and strong material adaptability.

[0003] Progress in the performance optimization and engineering applications of triboelectric nanogenerators (TGNs) is closely linked to significant increases in their output power. Theoretical studies have shown that their output energy is positively correlated with the square of the surface charge density. However, conventional TGNs in practical applications generally face the technical bottleneck of surface charge density decay. In particular, under the coupled effects of multiple physical fields, such as humidity, temperature, and air pressure, the relaxation process of interfacial charge is significantly accelerated, leading to an exponential increase in the dynamic charge dissipation rate. This phenomenon severely restricts the stability of the TGN output performance. Summary of the Invention

[0004] In response to the above problems in the prior art, the present invention provides a high-efficiency rotating nanogenerator based on unidirectional dynamic charge compensation.

[0005] The purpose of the present invention can be achieved by the following technical solutions:

[0006] A high-efficiency rotating nanogenerator based on unidirectional dynamic charge compensation, comprising an independent layer nanogenerator B, wherein the independent layer nanogenerator B realizes the conversion of mechanical energy into electrical energy based on triboelectric charging and electrostatic induction effects;

[0007] It also includes a charge generation and transport module C and a drive system A;

[0008] The charge generation and transport module C provides unidirectional dynamic charge compensation for the independent layered nanogenerator B based on triboelectric charging and electrostatic induction effects, as well as a unidirectional charge transport path, thereby achieving continuous charge generation and accumulation.

[0009] The driving system A is connected to the independent layer nanogenerator B and the charge generation and transport module C at the same time, providing the independent layer nanogenerator B and the charge generation and transport module C with necessary structural support and mechanical driving force.

[0010] Furthermore, the driving system includes a driving shaft, a driven shaft, a rotating motor, a support frame and a conveyor belt. The driving shaft and the driven shaft are installed parallel to the support frame. The driving shaft is coaxially connected to the output shaft of the rotating motor. The driving shaft and the driven shaft are connected through a conveyor belt transmission. The rotating motor drives the driving shaft to rotate, and drives the driven shaft to rotate synchronously through the conveyor belt.

[0011] Furthermore, the independent layered nanogenerator includes a generator rotor and a generator stator coaxially arranged with the driving shaft of the drive system; the generator rotor is tightly fitted with the driving shaft and rotates with the driving shaft; the generator stator is attached to a support frame; an output pole group is provided on the generator rotor, and a charge storage pole group is provided on the generator stator, and a dielectric layer is provided between the output pole group and the charge storage pole group; the dielectric layer is attached to the surface of the output pole group, and the surface of the dielectric layer maintains contact friction with the charge storage pole group.

[0012] Furthermore, the output pole group is composed of two groups of electrodes arranged in a fan-shaped manner with equal intervals along the radial direction, and the two are symmetrically arranged around the rotation axis to form a complementary distribution structure; the charge storage pole group includes a group of electrodes arranged in a fan-shaped manner with equal intervals along the radial direction, which are used to carry the charges introduced by the charge generation and transport module, and form a periodic staggered alignment relationship with the output pole group during rotation.

[0013] Furthermore, the output electrode group is integrated with a first electrode and a second electrode.

[0014] Furthermore, the charge generation and transport module includes: a triboelectric component, an electrostatic induction component, a brush, and a ground electrode; wherein:

[0015] The friction electrification component is laid around a section of the surface of the driven shaft of the drive system close to the rotating motor; the electrostatic induction component is laid around a section of the surface of the driving shaft of the drive system close to the rotating motor;

[0016] The conveyor belt is an endless belt structure, which is sleeved between the driving shaft and the driven shaft. The inner surface of the conveyor belt contacts the triboelectric component and the electrostatic induction component, forming a circular motion path. The driving shaft of the drive system rotates under the action of the rotary motor, driving the conveyor belt to circulate between the triboelectric component and the electrostatic induction component.

[0017] The brush is arranged in the vicinity of the electrostatic induction component, one side of which is electrically connected to the charge storage electrode group of the independent layered nanogenerator through a wire, and the other side is in contact with the outer surface of the conveyor belt near the driving shaft area, forming an electron migration path for drawing the negative charge induced on the surface of the charge storage electrode group to the outer surface of the conveyor belt, thereby realizing dynamic compensation of the positive charge in the charge storage electrode group;

[0018] The grounding electrode is arranged in the vicinity of the driven shaft and contacts the outer surface of the conveyor belt. Under the action of the strong electric field generated by the negative charge carried by the friction electrification component, the negative charge is released to the ground through the grounding electrode, forming a stable unidirectional charge transport path.

[0019] Furthermore, the outer surface of the triboelectric component maintains rolling friction contact with the inner surface of the conveyor belt, so as to positively charge the inner surface of the conveyor belt during the friction process;

[0020] The outer surface of the electrostatic induction component also maintains rolling friction contact with the inner surface of the conveyor belt, which is used to transfer the positive charge carried on the surface of the conveyor belt to the electrostatic induction component, and at the same time stimulate the corresponding induced negative charge on the surface of the charge storage electrode group through the electrostatic induction effect.

[0021] Furthermore, the charge generation and transport module provides unidirectional dynamic charge compensation for the independent layer nanogenerator, achieving continuous generation and accumulation of charge, thereby improving the energy output density and working stability of the independent layer nanogenerator; the specific process is as follows;

[0022] First, triboelectric charging generates an initial charge: During the operation of the conveyor belt, the triboelectric component on the driven shaft and the inner surface of the conveyor belt are in rolling friction contact. Due to the triboelectric effect, the outer surface of the triboelectric component has a negative charge, while the inner surface of the conveyor belt has a positive charge, because the electron affinity of the triboelectric component is stronger than that of the conveyor belt.

[0023] Subsequently, the positive charge of the conveyor belt is transferred: as the conveyor belt continues to run, the positively charged area of ​​the conveyor belt moves to the position of the driving shaft, and the inner surface of the conveyor belt and the electrostatic induction component on the driving shaft are in rolling friction contact. Although the inner surface of the conveyor belt is already positively charged, the direction of electron migration is still dominated by the material properties. Electrons continue to migrate from the surface of the electrostatic induction component to the inner surface of the conveyor belt, causing the surface of the electrostatic induction component to be positively charged. The positive charge on the inner surface of the conveyor belt is partially neutralized. The final charged state of the inner surface of the conveyor belt depends on the initial positive charge amount and the amount of electron transfer during the friction process.

[0024] Next, electrostatic induction guides the transfer of negative charge: the positively charged electrostatic induction component on the driving shaft induces negative charge on the surface of the charge storage electrode group through the electrostatic induction effect. This negative charge is transferred to the brush through the wire. The outer surface of the conveyor belt contacts the brush, and the conveyor belt has a strong electron affinity, which will carry away the negative charge of the brush.

[0025] Then, the negative charge is transferred to the ground for release: As the conveyor belt runs, the negative charge on its outer surface is transported to the ground electrode and released to the ground under the action of the electrostatic field generated by the negative charge on the surface of the triboelectric component, forming a stable unidirectional charge transport path;

[0026] As the conveyor belt continues to run, the negative charge induced by the charge storage electrode group is continuously transported to the outer surface of the conveyor belt and released to the ground. At this time, positive charge continues to accumulate on the surface of the charge storage electrode group; as the charge density on the surface of the charge storage electrode group continues to increase, an enhanced potential difference is formed between the first electrode and the second electrode of the charge storage electrode group and the output electrode group, thereby driving a stronger induced electric field, thereby generating a larger charge transfer amount between the first electrode and the second electrode, and improving the output capacity of the independent layered nanogenerator.

[0027] Furthermore, the triboelectric component has a stronger electron affinity than the conveyor belt.

[0028] Furthermore, the output electrode group, the charge storage electrode group, the electrostatic induction component, and the ground electrode are made of metal materials with a thickness of 10um~50μm;

[0029] The triboelectric components and dielectric layer are made of insulating materials with a thickness of 50μm~200μm;

[0030] The conveyor belt adopts rubber ring.

[0031] Compared with the prior art, the present invention has the following advantages:

[0032] (1) By introducing a unidirectional dynamic charge compensation strategy, the limitation that the charge density in traditional friction nanogenerators mainly depends on triboelectric charging is broken, and continuous generation and accumulation of charge can be achieved under non-violent contact conditions, which significantly improves the energy output density and working stability of the friction nanogenerator. In addition, the problem of charge release or attenuation caused by external factors such as air breakdown and high humidity environment during the charge accumulation process is effectively avoided, thereby enhancing the reliability and adaptability of the friction nanogenerator under complex environmental conditions.

[0033] (2) The modular structure design is adopted. The charge generation and transport module is physically separated from the main power generation structure (independent layer generator). They are functionally complementary, which is convenient for manufacturing and maintenance. At the same time, it improves the structural flexibility and integration compatibility of the system. The overall structure is compact and the operation is reliable. It is suitable for energy collection and micro-electronic equipment power supply applications in various mechanical energy scenarios. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 It is a structural schematic diagram of the present invention;

[0035] Figure 2 It is a schematic diagram of the structural details of the present invention;

[0036] Figure 3 The specific working principle of the present invention;

[0037] Figure 4 The surface charge density of the charge storage electrode group at different rotation speeds of the present invention;

[0038] Figure 5 It is the charge transfer amount between the ground electrode-charge storage electrode group and the output voltage of the independent layer nanogenerator of the present invention.

[0039] Reference numerals:

[0040] A drive system, A01-driving shaft, A02-driven shaft, A03-rotating motor, A04-support frame, A05-conveyor belt;

[0041] B independent layer nanogenerator, B01-output electrode group, B02-dielectric layer, B03-charge storage electrode group, B01-1-first electrode, B01-2-second electrode;

[0042] C charge generation and transport module, C01-triboelectric charging component, C02-electrostatic induction component, C03-brush, C04-ground electrode. DETAILED DESCRIPTION

[0043] The technical solution provided by this application will be further described below in conjunction with specific embodiments and accompanying drawings. The advantages and features of this application will become more apparent with reference to the following description.

[0044] like Figure 1 As shown, a high-efficiency rotating nanogenerator based on unidirectional dynamic charge compensation includes an independent layer nanogenerator B. The independent layer nanogenerator B realizes the conversion of mechanical energy into electrical energy based on triboelectric charging and electrostatic induction effects;

[0045] It also includes a charge generation and transport module C and a drive system A;

[0046] The charge generation and transport module C provides unidirectional dynamic charge compensation for the independent layered nanogenerator B based on triboelectric charging and electrostatic induction effects, as well as a unidirectional charge transport path, thereby achieving continuous charge generation and accumulation.

[0047] The driving system A is connected to the independent layer nanogenerator B and the charge generation and transport module C at the same time, providing the independent layer nanogenerator B and the charge generation and transport module C with necessary structural support and mechanical driving force.

[0048] like Figure 2As shown, the drive system includes a driving shaft A01, a driven shaft A02, a rotating motor A03, a support frame A04, and a conveyor belt A05. The driving shaft A01 and the driven shaft A02 are mounted parallel to the support frame A04. The driving shaft A01 is coaxially connected to the output shaft of the rotating motor A03. The driving shaft A01 and the driven shaft A02 are connected by a transmission belt A05. The rotating motor A03 drives the driving shaft A01 in rotation, and the conveyor belt A05 drives the driven shaft A02 in synchronous rotation. Furthermore, the rotating motor A03 is a variable-speed stepper motor to simulate the continuous rotation of the driving shaft A01 under different speed conditions.

[0049] like Figure 2 As shown, the independent layered nanogenerator comprises a generator rotor and a generator stator, coaxially arranged with the drive shaft A01 of the drive system. The generator rotor is tightly fitted with the drive shaft A01 and rotates with it. The generator stator is attached to a support frame A04. The generator rotor is provided with an output electrode group B01, and the generator stator is provided with a charge storage electrode group B03. A dielectric layer B02 is interposed between the output electrode group B01 and the charge storage electrode group B03. The dielectric layer B02 is attached to the surface of the output electrode group B01 and rotates synchronously with it, maintaining frictional contact between the surface of the dielectric layer B02 and the charge storage electrode group B03.

[0050] Furthermore, the output electrode group B01 is composed of two groups of electrodes arranged in a fan-shaped manner with equal intervals along the radial direction, and the two are symmetrically arranged around the rotation axis to form a complementary distribution structure; the charge storage electrode group B03 includes a group of electrodes arranged in a fan-shaped manner with equal intervals along the radial direction, which is used to carry the charge introduced by the charge generation and transport module, and forms a periodic staggered alignment relationship with the output electrode group B01 during rotation.

[0051] The output electrode group B01 is integrated with a first electrode B01 - 1 and a second electrode B01 - 2 .

[0052] The independent layer nanogenerator B converts friction into microscopic electric charges, realizing the conversion of mechanical energy into electrical energy. The specific process is as follows:

[0053] like Figure 3As shown, when the generator rotor rotates, frictional contact between the dielectric layer B02 and the charge storage electrode group B03 generates electricity, forming equal and opposite charges on their surfaces: the dielectric layer B02 carries a negative charge, while the charge storage electrode group B03 carries a positive charge. As the generator rotor rotates, the first electrode B01-1 and the second electrode B01-2 on the output electrode group B01 alternately align with the charged areas on the surface of the charge storage electrode group B03. The induced electric field generated by the charged charge storage electrode group B03 drives electrons to flow back and forth between the first electrode B01-1 and the second electrode B01-2, generating an AC signal in the external circuit, effectively converting mechanical energy into electrical energy.

[0054] like Figure 2 As shown, the charge generation and transport module includes: a friction electrification component C01, an electrostatic induction component C02, a brush C03, and a ground electrode C04; wherein:

[0055] The friction electrification component C01 is laid around a section of the surface of the driven shaft A02 of the drive system close to the rotating motor A03; the electrostatic induction component C02 is laid around a section of the surface of the driving shaft A01 of the drive system close to the rotating motor A03.

[0056] The conveyor belt A05 is an endless belt structure, looped between the driving shaft A01 and the driven shaft A02. Its inner surface contacts the triboelectric component C01 and the electrostatic induction component C02, forming a circular motion path. The drive system's driving shaft A01 rotates under the power of the rotary motor A03, driving the conveyor belt A05 in a circular motion between the triboelectric component C01 and the electrostatic induction component C02.

[0057] The outer surface of the triboelectric component C01 maintains rolling frictional contact with the inner surface of the conveyor belt A05, causing the inner surface of the conveyor belt A05 to become positively charged during the friction process. The outer surface of the electrostatic induction component C02 also maintains rolling frictional contact with the inner surface of the conveyor belt A05, transferring the positive charge carried on the surface of the conveyor belt A05 to the electrostatic induction component C02, while simultaneously stimulating the corresponding induced negative charge on the surface of the charge storage electrode group B03 through the electrostatic induction effect.

[0058] The brush C03 is arranged in the vicinity of the electrostatic induction component C02. One side is electrically connected to the charge storage electrode group B03 of the independent layered nanogenerator through a wire, and the other side contacts the outer surface of the conveyor belt A05 near the active shaft area, forming an electron migration path for leading the negative charge induced on the surface of the charge storage electrode group B03 to the outer surface of the conveyor belt A05, thereby realizing dynamic compensation of positive charge in the charge storage electrode group B03.

[0059] The grounding electrode C04 is arranged in the vicinity of the driven shaft A02 and contacts the outer surface of the conveyor belt A05. Under the action of the strong electric field generated by the negative charge carried by the friction electrification component C01, the negative charge is released to the ground through the grounding electrode, forming a stable unidirectional charge transport path.

[0060] Furthermore, the electron affinity of the triboelectric component C01 is stronger than that of the conveyor belt A05.

[0061] Furthermore, the output electrode group B01, the charge storage electrode group B03, the electrostatic induction component C02, and the ground electrode C04 are made of metal materials. As an embodiment, by way of example and not limitation, copper foil is used with a thickness of 10um~50μm; the friction electrification component C01 and the dielectric layer B02 are made of insulating materials. As an embodiment, by way of example and not limitation, PTFE material is used with a thickness of 50μm~200μm; the conveyor belt A05 is made of a rubber ring.

[0062] The specific working process of the present invention is as follows Figure 3 shown.

[0063] The charge generation and transport module C provides unidirectional dynamic charge compensation for the independent layer nanogenerator B, achieving continuous generation and accumulation of charge, and improving the energy output density and working stability of the independent layer nanogenerator B. Figure 3 As shown, the specific process is:

[0064] First, friction electrification generates initial charge: during the operation of conveyor belt A05, the friction electrification component C01 on the driven shaft A02 is in rolling friction contact with the inner surface of conveyor belt A05. Based on the friction electrification effect, since the electron affinity of friction electrification component C01 is stronger than that of conveyor belt A05, the outer surface of friction electrification component C01 is negatively charged, and the inner surface of conveyor belt A05 is positively charged.

[0065] Subsequently, the positive charge of the conveyor belt is transferred: as the conveyor belt A05 continues to run, the positively charged area of ​​the conveyor belt A05 moves to the position of the driving shaft A01, and the inner surface of the conveyor belt A05 is in rolling friction contact with the electrostatic induction component C02 on the driving shaft A01. Although the inner surface of the conveyor belt is already positively charged, the direction of electron migration is still dominated by the material properties. The electrons continue to migrate from the surface of the electrostatic induction component C02 to the inner surface of the conveyor belt A05, causing the surface of the electrostatic induction component C02 to be positively charged. The positive charge on the inner surface of the conveyor belt A05 is partially neutralized, and the final charged state of the inner surface of the conveyor belt A05 depends on the initial positive charge amount and the amount of electron transfer during the friction process.

[0066] Next, electrostatic induction guides the transfer of negative charge: the positively charged electrostatic induction component C02 on the active shaft A01 induces negative charge on the surface of the charge storage electrode group B03 through the electrostatic induction effect, and the negative charge is transferred to the brush C03 through the wire; the outer surface of the conveyor belt A05 contacts the brush C03, and the electron affinity of the conveyor belt A05 is strong, which will take away the negative charge of the brush C03.

[0067] Then, the negative charge is transferred to the ground and released: as the conveyor belt A05 runs, the negative charge on its outer surface is transported to the ground electrode C04, and released to the ground under the action of the electrostatic field generated by the negative charge on the surface of the triboelectric component C01, forming a stable unidirectional charge transport path.

[0068] As the conveyor belt continues to run, the negative charge induced by the charge storage electrode group B03 is continuously transported to the outer surface of the conveyor belt and released to the ground. At this time, the surface of the charge storage electrode group B03 can achieve continuous accumulation of positive charge; as the charge density on the surface of the charge storage electrode group B03 continues to increase, an enhanced potential difference is formed between the charge storage electrode group B03 and the first electrode B01-1 and the second electrode B01-2 of the output electrode group, thereby driving a stronger induced electric field, thereby generating a larger charge transfer amount between the first electrode B01-1 and the second electrode B01-2, thereby improving the output capacity of the independent layered friction nanogenerator.

[0069] This method breaks through the core bottleneck of traditional independent layer nanogenerators that rely on repeated friction between the charge storage electrode group B03 and the dielectric layer B02 for charging and are susceptible to charge saturation and material fatigue. By introducing a unidirectional dynamic charge compensation strategy, it significantly improves the charge accumulation capacity, electric field enhancement effect and system output stability.

[0070] Application examples:

[0071] In this application example, the drive system uses a DS2P-04AS stepper motor as the rotating motor to drive the active shaft. Four excitation speeds are set, namely 195, 244, 293, and 342 rpm. First, the change trend of the surface charge density of the rotating nanogenerator based on unidirectional dynamic charge compensation at different excitation speeds is tested. The implementation results are shown in Figure 2. Figure 4 The experimental results show that the surface charge density of charge storage electrode group B03 increases faster as the rotational speed increases. This can be attributed to the fact that the conveyor belt's speed increases with the rotational speed, which allows the charge to be transferred to the charge storage electrode group more quickly.

[0072] Furthermore, taking the excitation speed of 195 rpm as an example, the charge transfer amount between the ground electrode and the charge storage electrode group and the dynamic evolution of the output voltage of the rotating nanogenerator were measured using a Keithley 6517B electrometer. The experimental results are as follows: Figure 5The experimental results show that during the operation of the rotating nanogenerator, based on the unidirectional dynamic charge compensation strategy, the charge generation and transport module is at k = 18.8μC / (m 2 ∙s) to the charge storage electrode group B03. After 60s of continuous operation, the surface charge density of the charge storage electrode group increased linearly to 1130μC / m 2 , verifying the efficient charge transfer capability of this unidirectional dynamic charge compensation strategy. As the surface charge density increases, the output voltage continues to increase, demonstrating excellent charge injection performance.

[0073] The above description is only a description of the preferred embodiments of the present application and does not limit the scope of the present application. Any changes or modifications made by any person skilled in the art based on the above disclosed technical content should be regarded as equivalent valid embodiments and fall within the scope of protection of the technical solution of the present application.

Claims

1. A high-efficiency rotating nanogenerator based on unidirectional dynamic charge compensation, comprising an independent layer nanogenerator (B), wherein the independent layer nanogenerator (B) converts mechanical energy into electrical energy based on triboelectric charging and electrostatic induction effects; It is characterized by: It also includes a charge generation and transport module (C) and a drive system (A); The charge generation and transport module (C) provides unidirectional dynamic charge compensation for the independent layered nanogenerator (B) based on triboelectric charging and electrostatic induction effects, as well as a unidirectional charge transport path, thereby achieving continuous generation and accumulation of charge. The driving system (A) is connected to the independent layered nanogenerator (B) and the charge generation and transport module (C) to provide structural support and mechanical driving force for the independent layered nanogenerator (B) and the charge generation and transport module (C); The driving system (A) includes a driving shaft (A01), a driven shaft (A02), a rotating motor (A03), a support frame (A04), and a conveyor belt (A05); the driving shaft (A01) and the driven shaft (A02) are installed in parallel on the support frame (A04); the driving shaft (A01) is coaxially connected to the output shaft of the rotating motor (A03); the driving shaft (A01) and the driven shaft (A02) are connected via a conveyor belt (A05); the rotating motor (A03) drives the driving shaft (A01) to rotate, and the conveyor belt (A05) drives the driven shaft (A02) to rotate synchronously; The independent layered nanogenerator (B) comprises a generator rotor and a generator stator coaxially arranged with the driving shaft (A01) of the drive system; the generator rotor is tightly fitted with the driving shaft (A01) and rotates with the driving shaft (A01); the generator stator is attached to the support frame (A04); An output pole group (B01) is provided on the generator rotor, a charge storage pole group (B03) is provided on the generator stator, and a dielectric layer (B02) is provided between the output pole group (B01) and the charge storage pole group (B03); The dielectric layer (B02) is attached to the surface of the output electrode group (B01), and the surface of the dielectric layer (B02) maintains contact friction with the charge storage electrode group (B03); The charge generation and transport module (C) includes: a triboelectric component (C01), an electrostatic induction component (C02), a brush (C03), and a grounding electrode (C04); wherein: The friction electrification component (C01) is laid around a section of the surface of the driven shaft (A02) of the drive system close to the rotating motor (A03); the electrostatic induction component (C02) is laid around a section of the surface of the driving shaft (A01) of the drive system close to the rotating motor (A03); The conveyor belt (A05) is an annular belt structure, which is sleeved between the driving shaft (A01) and the driven shaft (A02). The inner surface of the conveyor belt contacts the friction electrification component (C01) and the electrostatic induction component (C02), forming a circular motion path. The driving shaft (A01) of the drive system rotates under the action of the rotating motor (A03), driving the conveyor belt (A05) to circulate between the friction electrification component (C01) and the electrostatic induction component (C02). The brush (C03) is arranged in an area adjacent to the electrostatic induction component (C02), with one side electrically connected to the charge storage electrode group (B03) of the independent layered nanogenerator via a wire, and the other side contacts the outer surface of the conveyor belt (A05) near the active shaft area, forming an electron migration path for leading the negative charge induced on the surface of the charge storage electrode group (B03) to the outer surface of the conveyor belt (A05), thereby achieving dynamic compensation of the positive charge in the charge storage electrode group (B03); The grounding electrode (C04) is arranged in the vicinity of the driven shaft (A02) and contacts the outer surface of the conveyor belt (A05). Under the action of the strong electric field generated by the negative charge carried by the triboelectric component (C01), the negative charge is released to the ground through the grounding electrode, forming a stable unidirectional charge transport path.

2. The high-efficiency rotating nanogenerator based on unidirectional dynamic charge compensation according to claim 1, characterized in that: The output electrode group (B01) is composed of two groups of electrodes arranged in a sector shape with equal radial spacing, which are symmetrically arranged around the rotation axis to form a complementary distribution structure; the charge storage electrode group (B03) includes a group of electrodes arranged in a sector shape with equal radial spacing, which are used to carry the charge introduced by the charge generation and transport module and form a periodic staggered alignment relationship with the output electrode group (B01) during rotation.

3. The high-efficiency rotating nanogenerator based on unidirectional dynamic charge compensation according to claim 1, characterized in that: The output electrode group (B01) is integrated with a first electrode (B01-1) and a second electrode (B01-2).

4. The high-efficiency rotating nanogenerator based on unidirectional dynamic charge compensation according to claim 1, characterized in that: The outer surface of the triboelectric component (C01) maintains rolling friction contact with the inner surface of the conveyor belt (A05), so as to make the inner surface of the conveyor belt (A05) positively charged during the friction process; The outer surface of the electrostatic induction component (C02) and the inner surface of the conveyor belt (A05) also maintain rolling friction contact, which is used to transfer the positive charge carried on the surface of the conveyor belt (A05) to the electrostatic induction component (C02), and at the same time stimulate the corresponding induced negative charge on the surface of the charge storage electrode group (B03) through the electrostatic induction effect.

5. The high-efficiency rotating nanogenerator based on unidirectional dynamic charge compensation according to claim 3, characterized in that: The charge generation and transport module (C) provides unidirectional dynamic charge compensation for the independent layered nanogenerator (B), achieving continuous generation and accumulation of charge, thereby improving the energy output density and working stability of the independent layered nanogenerator; the specific process is as follows; First, triboelectric charging generates initial charges: During the operation of the conveyor belt (A05), the triboelectric component (C01) on the driven shaft (A02) and the inner surface of the conveyor belt (A05) are in rolling friction contact. Due to the triboelectric effect, the electron affinity of the triboelectric component (C01) is stronger than that of the conveyor belt (A05), so the outer surface of the triboelectric component (C01) is negatively charged, while the inner surface of the conveyor belt (A05) is positively charged. Subsequently, the positive charge of the conveyor belt is transferred: as the conveyor belt (A05) continues to run, the positively charged area of ​​the conveyor belt (A05) moves to the position of the driving shaft (A01), and the inner surface of the conveyor belt (A05) and the electrostatic induction component (C02) on the driving shaft (A01) are in rolling friction contact. Although the inner surface of the conveyor belt is already positively charged, the direction of electron migration is still dominated by the material properties. Electrons continue to migrate from the surface of the electrostatic induction component (C02) to the inner surface of the conveyor belt (A05), causing the surface of the electrostatic induction component (C02) to be positively charged. The positive charge on the inner surface of the conveyor belt (A05) is partially neutralized. The final charged state of the inner surface of the conveyor belt (A05) depends on the initial positive charge amount and the amount of electron transfer during the friction process. Next, electrostatic induction guides the transfer of negative charge: the positively charged electrostatic induction component (C02) on the driving shaft (A01) induces negative charge on the surface of the charge storage electrode group (B03) through the electrostatic induction effect. This negative charge is transferred to the brush (C03) through the wire; the outer surface of the conveyor belt (A05) contacts the brush (C03), and the conveyor belt (A05) has a strong electron affinity and will carry away the negative charge of the brush (C03); Then, the negative charge is transferred to the ground for release: As the conveyor belt (A05) runs, the negative charge on its outer surface is transported to the ground electrode (C04), and is released to the ground under the action of the electrostatic field generated by the negative charge on the surface of the triboelectric component (C01), forming a stable unidirectional charge transport path; As the conveyor belt continues to run, the negative charge induced by the charge storage electrode group (B03) is continuously transported to the outer surface of the conveyor belt and released to the ground. At this time, the surface of the charge storage electrode group (B03) continuously accumulates positive charges. As the surface charge density of the charge storage electrode group (B03) continues to increase, an enhanced potential difference is formed between the charge storage electrode group (B03) and the first electrode (B01-1) and the second electrode (B01-2) of the output electrode group, thereby driving a stronger induced electric field, thereby generating a larger charge transfer amount between the first electrode (B01-1) and the second electrode (B01-2), thereby improving the output capacity of the independent layered nanogenerator (B).

6. The high-efficiency rotating nanogenerator based on unidirectional dynamic charge compensation according to claim 1, characterized in that: The triboelectric component (C01) has a stronger electron affinity than the conveyor belt (A05).

7. The high-efficiency rotating nanogenerator based on unidirectional dynamic charge compensation according to claim 1, characterized in that: The output electrode group (B01), charge storage electrode group (B03), electrostatic induction component (C02), and ground electrode (C04) are made of metal materials with a thickness of 10um~50μm; The triboelectric component (C01) and dielectric layer (B02) are made of insulating materials with a thickness of 50 μm to 200 μm; The conveyor belt (A05) uses a rubber ring.

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