CN108233762B - Flexible wearable friction nano generator capable of collecting mechanical energy in omnibearing multimode mode - Google Patents
Flexible wearable friction nano generator capable of collecting mechanical energy in omnibearing multimode mode Download PDFInfo
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Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02N—ELECTRIC MACHINES NOT OTHERWISE PROVIDED FOR
- H02N1/00—Electrostatic generators or motors using a solid moving electrostatic charge carrier
- H02N1/04—Friction generators
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- General Electrical Machinery Utilizing Piezoelectricity, Electrostriction Or Magnetostriction (AREA)
Abstract
The invention belongs to the technical field of flexible devices, and discloses a flexible wearable friction nano generator for collecting mechanical energy in an omnibearing multi-mode. Under the action of external force: in the contact separation mode, contact-separation circulation is carried out through the first friction surface and the second friction surface under the action of normal external force, and the normal relative distance of friction units on the two friction surfaces is changed, and an electric signal is output to an external circuit through the first conductive element and the second conductive element; in the independent friction mode, relative sliding occurs through the first friction surface and the second friction surface under the action of tangential external force, and meanwhile tangential relative positions of the first friction unit and the second conductive unit are changed, and an electric signal is output to an external circuit through two secondary second conductive elements of the second conductive element. The invention improves the multidimensional collection performance of the friction nano generator on mechanical energy and improves the electric output performance.
Description
Technical Field
The invention belongs to the technical field of flexible devices, and relates to a flexible wearable friction nano generator for collecting mechanical energy in an omnibearing multi-mode manner.
Background
A nano-triboelectric generator is an energy harvesting device (or self-powered sensing device that converts mechanical motion into electrical signals) that is capable of converting mechanical energy of an external environment into electrical energy based on nano-scale triboelectric effects. The Wang Zhonglin professor of the university of georgia in the united states was first proposed in 2006 and developed the world's first friction nano-generator in 2012. However, the technology of friction nano-generators is still under development, both in terms of material selection and its environmental impact (in particular humidity), and is not mature enough. How to improve the output energy and efficiency and expand the application range is a main problem facing the current situation.
Due to the proliferation of portable electronic products, powering a large number of miniature electronic devices is a problem. In view of the characteristics of huge number of portable electronic devices, random distribution in space and the like, the collection of energy from the environment to drive the personal portable electronic devices becomes a feasible method. By capturing mechanical energy widely distributed in the environment and converting it into electrical energy, the technology can obtain a continuous, green nano energy source to realize a self-powered micro-nano system. The elastic property and the stretchability of the material are utilized by the flexible friction nano generator to convert the mechanical energy of daily motion of a human body into electric energy and output the electric energy, so that the application range of the friction nano generator is greatly improved, the disclosed flexible nano generator has strict requirements on the direction and the periodicity of the friction motion, the electric energy output of the generator is mostly limited to the friction motion in a specific direction, and the electrostatic energy generated by friction in other directions cannot be effectively utilized. Meanwhile, the energy source of the existing friction nano generator is often limited to mechanical energy obtained by a single motion, for example, the friction nano generator based on a contact-separation mode cannot collect electric energy output caused by periodic friction, so that the friction nano generator capable of switching the working mode according to different motion types is beneficial to expanding the application range and improving the collection and conversion efficiency of the mechanical energy.
Disclosure of Invention
The invention aims to provide a flexible friction nano generator capable of collecting static energy generated by friction movement in all directions, and solves the defect that the existing friction nano generator can only work in a certain specific direction for movement; meanwhile, the generator can work in two different motion modes of sliding and contact-separation motion through circuit switching, so that the motion dimension and energy sources of the generator are widened, and the wearable equipment is more effectively powered.
The technical scheme of the invention is as follows:
a flexible wearable friction nano generator for collecting mechanical energy in an omnibearing multi-mode comprises a first friction part 1 and a second friction part 2; the first friction part 1 is positioned above the second friction part 2, and the first friction layer 11 of the first friction part 1 is contacted with the second friction layer 21 of the second friction part 2;
the first friction part 1 comprises a first friction layer 11, a first conductive element 12 and an upper insulating isolation layer 13; an upper insulating isolation layer 13, a first conductive element 12 and a first friction layer 11 are arranged in sequence from top to bottom;
the second friction part 2 comprises a second friction layer 21, a second conductive element 22 and a lower insulating isolation layer 23; a second friction layer 21, a second conductive element 22 and a lower insulating isolation layer 23 are arranged in sequence from top to bottom; the second conductive element group 22 includes a secondary second conductive element a221 and a secondary second conductive element b222;
the generator has two working modes under the action of external force, namely a contact separation mode and an independent friction mode; in the contact separation mode, the generator periodically makes contact-separation circulation with the first friction layer 11 and the second friction layer 21 under the action of normal external force, and simultaneously the normal relative distance between the first friction layer 11 and the second friction layer 21 changes, and outputs an electric signal to an external circuit through the first conductive element 12 and the second conductive element 22, and at this time, the secondary second conductive element a221 and the secondary second conductive element b222 are connected in series as a whole; in the independent friction mode, the generator slides relatively to the first friction layer 11 and the second friction layer 21 under the action of tangential external force, and meanwhile, the tangential relative positions of the first friction layer 11 and the second conductive unit 22 change, and an electric signal is output to an external circuit through the secondary second conductive element a221 and the secondary second conductive element b222 of the second conductive element 22.
The upper insulating isolation layer 13 and the lower insulating isolation layer 23 are flexible and bendable insulating thin layers made of high polymer materials, including polydimethylsiloxane PDMS, polymethyl methacrylate PMMA, polyvinyl acetate PVA or polyvinyl chloride PVC.
The first conductive element 12 is a grid structure, and the first conductive element 12 is an electrode unit.
The second conductive element 22 is in a staggered grid structure and is divided into a secondary second conductive element a221 and a secondary second conductive element b222, which are in a mutually symmetrical and staggered separation structure, and the secondary second conductive element a221 and the secondary second conductive element b222 are respectively led out of wires to be connected with a load.
The first conductive element 12 and the second conductive element 22 are plated on the flexible substrate coated with the mask plate by using a magnetron sputtering method or are manufactured by directly attaching etched conductive films on the flexible substrate, and the mask plate is manufactured by laser cutting and processing of a pre-designed grid shape.
The first conductive element 12 and the second conductive element 22 are flexible conductive materials with variable elastic stretching, including conductive glue, graphene, metal or alloy; wherein the metal is gold, silver, platinum, palladium, aluminum, nickel, copper, titanium, chromium, selenium, iron, manganese, molybdenum, tungsten or vanadium; the alloy is aluminum alloy, titanium alloy, magnesium alloy, beryllium alloy, copper alloy, zinc alloy, manganese alloy, nickel alloy, lead alloy, tin alloy, cadmium alloy, bismuth alloy, indium alloy, gallium alloy, tungsten alloy, molybdenum alloy, niobium alloy or tantalum alloy.
The first friction layer 11 is made of flexible insulating materials with a woven structure, two strip-shaped flexible insulating materials with the same width are manufactured by a weaving method, and the first friction layer 11 woven by the two flexible materials still has flexibility; the width of the two flexible materials is determined by the size of the individual grid electrodes of the second conductive element 22, or is equal to the side length of the individual grid electrodes in the second conductive element 22; the second friction layer 21 is a flexible insulating material.
The width of the strip-shaped insulating woven material in the first friction layer 11 is 0.1cm-10cm, and the side length of the single grid electrode in the second conductive element 22 is in the range of 0.1cm-10cm.
The two braided fabric materials in the first friction layer 11 have a difference in friction electrode sequence, wherein one of the two braided fabric materials is selected from any one of polyimide film, aniline formaldehyde resin film, polyoxymethylene film, polyamide film polyethylene glycol succinate film, cellulose acetate film, polyallylate film, polyurethane elastomer film, styrene propylene copolymer film, styrene butadiene copolymer film, rayon film, polymethyl methacrylate film, polyvinyl alcohol film, polyisobutylene film, polyethylene terephthalate film, polyvinyl butyral film, neoprene film, butadiene propylene copolymer film, natural rubber film, polyacrylonitrile film and acrylonitrile vinyl chloride copolymer film; the other one is selected from any one of polytetrafluoroethylene PTFE, polyethylene terephthalate PET, polyvinyl alcohol PVA or polyvinylpyrrolidone PVP.
The material of the second friction layer 21 is selected from any one of polytetrafluoroethylene PTFE, polyethylene terephthalate PET, polyvinyl alcohol PVA, polyvinylpyrrolidone PVP, polydimethylsiloxane PDMS, polymethyl methacrylate PMMA or polyvinyl chloride PVC.
The thickness of the upper insulating isolation layer 13 and the lower insulating isolation layer 23 is 0.01-10mm; the thickness of the first conductive element 12 and the second conductive element 22 is 10-100 μm; the thickness of the first friction layer 11 and the second friction layer 21 is 0.01-10mm.
The beneficial effects of the invention are as follows:
the upper insulating barrier layer, the lower insulating barrier layer, the first friction layer and the second friction layer of the friction nano-generator of the present invention are all made of stretchable flexible materials such as polymer materials, and energy generated in various mechanical movements can be collected by using the flexible friction nano-generator due to the flexibility and stretchability of the stretchable polymers.
According to the friction nano generator, the flexible braiding type friction layer is made of the two equally-wide strip-shaped stretchable polymeric materials with different friction electrode sequences, so that the motion of the friction unit with a certain distance in each direction can meet the periodic condition, the application of the friction nano generator is expanded to the braiding type clothes, and the application field of the friction nano generator is greatly expanded.
The friction nano generator provided by the invention is used for adapting to a woven friction layer and optimizing the electric output performance of the friction layer structure, and an interlaced grid electrode structure is originally designed to serve as a second conductive element, so that energy generated by tangential movement in each movement direction can be collected when the generator works in an independent friction mode.
The friction nano generator provided by the invention has the advantages of working in various movement modes, and when external force acts on the normal direction of the friction layer, the generator works in a contact-separation mode to output electricity, so that mechanical energy of separation movement and large-amplitude mechanical energy of the first friction layer in a range where the second friction layer moves out can be effectively collected; when external force acts on the tangential direction of the friction layer, the generator works in an independent friction mode to supply power to the portable load, and small-amplitude mechanical energy of the first friction layer moving in the range of the second friction layer can be effectively collected, so that the mechanical energy can be more effectively collected and utilized from a multi-dimensional and multi-movement mode.
Drawings
FIG. 1 is a schematic diagram of the structure of the flexible wearable friction nano-generator of the invention collecting mechanical energy in an omni-directional multi-mode.
Fig. 2 is a schematic diagram of the power generation process of the flexible wearable friction nano-generator working in an independent friction mode.
Fig. 3 is a schematic diagram of the power generation process of the flexible wearable friction nano-generator of the invention working in contact-separation mode, collecting mechanical energy in an omnibearing multimode.
Fig. 4 is a schematic view of a three-dimensional structure of a woven second friction layer.
Fig. 5 is a schematic diagram of a process for manufacturing the grid-shaped first conductive element.
Fig. 6 is a schematic top view of a staggered grid-like second conductive element structure.
Fig. 7 is a schematic diagram of a manufacturing process of the staggered grid-shaped second conductive element.
Fig. 8 is a schematic diagram of the principle of the flexible wearable friction nano generator for collecting mechanical energy in an omnibearing multimode manner applied to energy storage.
In the figure: 1 a first friction member; 2 a second friction member; 11 a first friction layer;
12 a first conductive element; 13, an insulating isolation layer is arranged on the substrate; a second friction layer 21; 22 a second conductive element;
a lower insulating isolation layer 23; 221 a secondary second conductive element a;222 secondary second conductive element b.
Detailed Description
The following describes specific embodiments of the present invention in detail with reference to the drawings and technical solutions.
In the present invention, unless otherwise indicated, terms of orientation such as "upper", "lower", "left", "right", etc. are merely referring to the orientation of the drawings; "inner" means toward the interior of the structure and "outer" means toward the exterior of the structure; "normal force" means that the force or component of the force is perpendicular to the friction surface and "tangential force" means that the force or component of the force is parallel to the friction surface.
The invention relates to a friction electrode sequence, which is characterized in that when two materials are rubbed or contacted according to the attraction capability of the materials to charges, negative charges are transferred from the surface of the material with positive polarity in the friction electrode sequence to the surface of the material with negative polarity in the friction electrode sequence through a friction surface, so that the former is positively charged, the latter is negatively charged, a certain potential difference is formed, and mechanical energy is converted into electric potential energy. For example, one of the first friction layers is made of polyamide (Nylon), the second friction layer is made of polytetrafluoroethylene (Teflon), and according to the order of friction electrodes, the polytetrafluoroethylene has a polarity which is more negative than that of polyamide, so that the polytetrafluoroethylene has higher electron-obtaining capability, a polytetrafluoroethylene thin layer is negatively charged after the two friction layers are contacted, and a polyamide thin layer is positively charged. Because polytetrafluoroethylene and polyamide are insulators, the friction charges on the surfaces of the polytetrafluoroethylene and the polyamide can be kept for a long time, and the charge density is basically kept unchanged, so that the relative potential difference exists all the time after the friction is sufficient, and the sustainable working performance of the generator is ensured.
The invention provides a flexible wearable friction nano generator capable of collecting mechanical energy in an omnibearing multimode, which is shown in FIG. 1, and comprises a first friction part 1 and a second friction part 2, wherein the first friction part 1 comprises an upper insulating isolation layer 13, a first conductive element 12 directly attached to the inner surface of the upper insulating isolation layer and a first friction layer 11 directly attached to the inner surface of the first conductive element; the second friction member 2 includes a second friction layer 21, a second conductive element 22 in direct contact with the outer surface of the second friction layer, and a lower insulating separator layer 23 in direct contact with the outer surface of the second conductive element. The unique electrode composition enables the generator to have electric energy output under different external force directions and to work in different movement modes.
When the generator is operated in the independent friction mode, see fig. 2, in which the generator slides relatively to the inner surface of the first friction layer 11 and the inner surface of the second friction layer 21 under the action of tangential external force, the tangential relative position of the first friction layer 11 and the second conductive unit 22 changes, and an electrical signal is output to the external circuit through the two secondary second conductive elements 221 and 222 of the second conductive element, respectively.
When the generator is operated in the contact-separation mode, see fig. 3, in which the generator periodically makes contact-separation cycles with the inner surface of the first friction layer 11 and the inner surface of the second friction layer 21 under the action of the normal external force, the normal relative distances of the friction units having different friction electric polarities on the two friction surfaces are changed, and the alternating current signal is output to the external circuit through the first conductive element 12 and the second conductive element 22, and at this time, the two secondary second conductive elements 221 and 222 need to be connected in series as a whole second conductive element 22.
The flexible wearable friction nano generator for collecting mechanical energy in an omnibearing multi-mode adopts a three-electrode structure, and realizes the switching of different working modes of the same device through different wiring modes. When the electric motor works in the independent friction mode, the secondary second conductive element a221 and the secondary second conductive element b222 are taken and respectively led out of the wires, so that the electric energy converted from the mechanical energy of the independent friction movement can be output; when the device works in the contact separation mode, the secondary second conductive element a221 and the secondary second conductive element b222 are connected in series to form an electrode whole and lead out wires, and form an electrode output interface together with the first conductive element 12, so that electric energy converted from mechanical energy of contact separation movement can be collected.
The application ranges of the two modes are mutually complemented, the independent friction mode is suitable for small-range and small-amplitude motion, and the contact separation mode is suitable for large-range and large-amplitude motion. For example, the manufactured flexible wearable friction nano generator is placed at different positions on the upper and lower sides of the clothing, the movement amplitude of the flexible wearable friction nano generator is detected by the magnitude of the output power, the flexible wearable friction nano generator is switched to an independent friction mode by connecting a wire to the secondary second conductive element a221 and the secondary second conductive element b222 when the movement amplitude is small, and the secondary second conductive element a221 and the secondary second conductive element b222 are connected in series and are respectively connected with the electrode 12 by the wire to be switched to a contact separation mode when the movement amplitude is large. Through experimental measurement, the open circuit voltage of the device can reach 100V when mechanical energy of large-amplitude friction movement is collected, and the short circuit current can reach 0.6uA; the open circuit voltage can reach 150 volts and the short circuit current can reach 1uA when collecting mechanical energy of the separation movement.
The upper and lower insulating spacers 13 and 23 are flexible and bendable insulating thin layers for protecting the conductive elements and the friction layers inside, and the material used is preferably selected from any one of high molecular polymer materials such as Polydimethylsiloxane (PDMS), polymethyl methacrylate (PMMA), polyvinyl acetate (PVA) or polyvinyl chloride (PVC).
In the invention, the first friction layer 11 adopts a woven structure, referring to fig. 4, two kinds of uniform-width strip-shaped stretchable polymeric materials with different friction electrode sequences are manufactured into the flexible woven friction layer, so that the motion of the friction unit with a certain distance in each direction can meet the periodic condition, and the mechanical energy in each direction can be collected more effectively. The width of the strip-shaped insulating braid material in the first friction layer 11 is determined by the size of the individual lattice electrodes of the designed staggered lattice second conductive elements 22, or the width of the strip-shaped insulating braid material in the first friction layer 11 is equal to the side length of the individual lattice electrodes of the second conductive elements 22. The width of the strip-shaped insulating woven material in the first friction layer 11 is preferably in the range of 0.1cm to 10cm, or the side length of the individual lattice electrodes in the second conductive member 22 is preferably in the range of 0.1cm to 10cm.
The two braid materials in the first frictional layer 11 are required to have a difference in frictional electrode sequence, one of which may be selected from any one of a polyimide film, an aniline formaldehyde resin film, a polyoxymethylene film, a polyamide film polyethylene glycol succinate film, a cellulose acetate film, a polyallylate phthalate film, a polyurethane elastomer film, a styrene propylene copolymer film, a styrene butadiene copolymer film, a rayon film, a polymethyl methacrylate film, a polyvinyl alcohol film, a polyisobutylene film, a polyethylene terephthalate film, a polyvinyl butyral film, a neoprene film, a butadiene propylene copolymer film, a natural rubber film, a polyacrylonitrile film, an acrylonitrile vinyl chloride copolymer film; the other is selected from Polytetrafluoroethylene (PTFE), polyethylene terephthalate (PET), polyvinyl alcohol (PVA) or polyvinylpyrrolidone (PVP).
The width of the strip-shaped insulating woven material in the first friction layer 11 is in the range of 0.01cm to 30cm, preferably in the range of 0.1cm to 10cm; or the individual grid electrodes in the second conductive element 22 have a side length in the range of 0.01cm to 30cm, preferably in the range of 0.1cm to 10cm.
The second friction layer 21 is interposed as a unitary structure between the first friction layer 11 and the second conductive member 22, and the material is preferably an elastic polymer such as any one of Polytetrafluoroethylene (PTFE), polyethylene terephthalate (PET), polyvinyl alcohol (PVA), polyvinylpyrrolidone (PVP), polydimethylsiloxane (PDMS), polymethyl methacrylate (PMMA), or polyvinyl chloride (PVC), or one of two materials of the first friction layer, which has a relatively negative frictional electric polarity, for example, polytetrafluoroethylene and polyamide are selected as the two woven materials of the first friction layer 11, and polyamide is selected as the material of the second friction layer 21.
The thickness of the upper insulating spacer 13, the lower insulating spacer 23, the first friction layer 11 and the second friction layer 21 ranges from 0.01 to 30mm, preferably ranges from 0.01 to 10mm.
In the invention, the first conductive element 12 adopts a grid-shaped structure, and the specific manufacturing method is shown in fig. 5, by adopting the grid-shaped structure, the phenomenon that the electric field generated by rearranging electrons is caused to weaken the working electric field generated by the friction layer due to the fact that larger potential difference occurs in the whole electrode can be avoided, and the potential difference in the grid-shaped electrode is obviously reduced through simulation and experiment, so that the generated electric field has no larger influence on the working electric field of the friction layer, and the electric energy output performance of the generator is optimized.
In the present invention, the second conductive element 22 adopts a staggered grid structure, and the structural schematic diagram is shown in fig. 6, where the staggered grid-shaped second conductive element 22 is made up of two parts of grid-shaped secondary second conductive elements a221 and secondary second conductive elements b222 that are symmetrical to each other in a staggered manner; drawing the shape of a mask plate by utilizing AutoCAD software, guiding a designed CAD file into a laser cutting machine, cutting a 3 mm-thick organic glass (PMMA) plate into a specified shape by using the laser cutting machine, and removing redundant structures in the mask plate so as to form the mask plate with the electrode shape; then covering the prepared mask plate on the surface of the adopted flexible friction layer material, and generating a layer of latticed metal film with the thickness of about 50 mu m, such as an Au film, on the surface of the flexible substrate by utilizing a magnetron sputtering method; and finally removing the mask plate to obtain the second conductive element with the staggered grid clicking structure. The grid electrode units of the second conductive elements 22 which are arranged in a staggered manner correspond to the friction units of the woven first friction layer 11, and the side length of a single grid electrode in the second conductive element 22 is equal to the side length of the friction unit of the first friction layer 11, so that the periodic condition in an independent friction mode is met, the electric energy output can be possibly caused by sliding friction in any direction, and the collection of all-dimensional mechanical energy is greatly improved.
The thickness of the first 12 and second 22 conductive elements is in the range of 10-1000 μm, preferably 10-100 μm.
Due to the expandability of the first friction layer woven structure and the correspondence between the grid electrodes of the second conductive units and the friction units, the friction units of the first friction layer 11, the grid electrodes of the first conductive units and the staggered grid electrodes of the second conductive units can be infinitely translated, copied and extended according to actual conditions; the outer shape of the lattice electrode may be circular, elliptical, polygonal, etc.
The flexible wearable friction nano generators for collecting mechanical energy in an omnibearing multi-mode are connected in series or in parallel according to the needs, so that the nano generator set can be obtained, the output power is increased, and the output performance is improved.
In practical applications, because the uncontrolled and unstable nature of human movement results in an unstable electrical energy output from the generator, which in many cases cannot be used directly as a power source for an electronic device, the harvested converted energy needs to be stored by an energy storage unit, such as a capacitor or battery, to provide an adjustable and controllable output, and the generator is connected externally to a rectifying device and across a capacitor that stores electrical energy, see fig. 7. Experiments show that for smaller load capacitance, the charging voltage is higher and the charging speed is faster. The power generation device of the present invention can charge a capacitance of 2.2uF to 0.9V in about 25 seconds. Of course, for more efficient energy harvesting and storage, integrated systems for power generation, rectification, management, storage and transportation should be developed for use in systems for harvesting human mechanical energy.
In order to test the practical working capacity of the wearable flexible device, a flexible nano generator with a larger area is manufactured and used for supplying power to an LED lamp, and the LED is a typical device capable of converting electric energy into light energy, and the schematic diagram of the whole test circuit is shown in fig. 8.
The preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings, but the present invention is not limited to the specific details of the above embodiments, and various simple modifications can be made to the technical solution of the present invention within the scope of the technical concept of the present invention, and all the simple modifications belong to the protection scope of the present invention. For example, the shape, material, and size of each component.
Claims (6)
1. The flexible wearable friction nano generator for collecting mechanical energy in an omnibearing multi-mode is characterized by comprising a first friction part (1) and a second friction part (2); the first friction part (1) is positioned above the second friction part (2), and the lower surface of the first friction layer (11) of the first friction part (1) is contacted with the upper surface of the second friction layer (21) of the second friction part (2); the first friction part (1) comprises a first friction layer (11), a first conductive element (12) and an upper insulating isolation layer (13); an upper insulating isolation layer (13), a first conductive element (12) and a first friction layer (11) are sequentially arranged from top to bottom;
the second friction part (2) comprises a second friction layer (21), a second conductive element (22) and a lower insulating isolation layer (23); a second friction layer (21), a second conductive element (22) and a lower insulating isolation layer (23) are arranged in sequence from top to bottom; the second conductive element (22) comprises a secondary second conductive element a (221) and a secondary second conductive element b (222);
the first conductive element (12) is in a grid structure, and the first conductive element (12) is an electrode whole;
the second conductive element (22) is of a staggered grid structure and is divided into a secondary second conductive element a (221) and a secondary second conductive element b (222), which are of a mutually symmetrical and staggered separation structure, wherein the secondary second conductive element a (221) and the secondary second conductive element b (222) are respectively led out of wires to be connected with a load;
the generator has two working modes under the action of external force, namely a contact separation mode and an independent friction mode;
in the contact separation mode, the generator periodically performs contact-separation circulation on the first friction layer (11) and the second friction layer (21) under the action of normal external force, and meanwhile, the normal relative distance between the first friction layer (11) and the second friction layer (21) is changed, and an electric signal is output to an external circuit through the first conductive element (12) and the second conductive element (22), and at the moment, the secondary second conductive element a (221) and the secondary second conductive element b (222) are connected in series to form a whole;
the generator generates relative sliding between the first friction layer (11) and the second friction layer (21) under the action of tangential external force in the independent friction mode, and meanwhile, the tangential relative positions of the first friction layer (11) and the second conductive element (22) are changed, and an electric signal is output to an external circuit through a secondary second conductive element a (221) and a secondary second conductive element b (222) of the second conductive element (22);
the first friction layer (11) is a flexible insulating material woven by two braided fabric materials with different friction electrode sequences, and the widths of the two braided fabric materials are the same; the width of the two braid materials is determined by the size of the individual lattice electrodes of the second conductive element (22), or is equal to the side length of the individual lattice electrodes in the second conductive element (22); the second friction layer (21) is made of flexible insulating material;
the first conductive element (12) and the second conductive element (22) are flexible conductive materials with changeable elastic stretching and are metal or alloy; wherein the metal is gold, silver, platinum, palladium, aluminum, nickel, copper, titanium, chromium, selenium, iron, manganese, molybdenum, tungsten or vanadium; the alloy is aluminum alloy, titanium alloy, magnesium alloy, beryllium alloy, copper alloy, zinc alloy, manganese alloy, nickel alloy, lead alloy, tin alloy, cadmium alloy, bismuth alloy, indium alloy, gallium alloy, tungsten alloy, molybdenum alloy, niobium alloy or tantalum alloy.
2. The flexible wearable friction nano-generator for collecting mechanical energy in an omnibearing multimode according to claim 1, wherein the width of the strip-shaped insulating braided material in the first friction layer (11) is 0.1cm-10cm, and the side length of the single grid-shaped electrode in the second conductive element (22) is 0.1cm-10cm.
3. The flexible wearable friction nano-generator for collecting mechanical energy in omnibearing multimode according to claim 1, characterized in that the thickness of the upper insulating isolation layer (13) and the lower insulating isolation layer (23) is 0.01-10mm; the thickness of the first conductive element (12) and the second conductive element (22) is 10-100 mu m; the thickness of the first friction layer (11) and the second friction layer (21) is 0.01-10mm.
4. A flexible wearable friction nano generator for collecting mechanical energy in an omnibearing multimode according to claim 1, 2 or 3, characterized in that the upper insulating isolation layer (13) and the lower insulating isolation layer (23) are flexible and bendable insulating thin layers made of high molecular polymer materials, which are polydimethylsiloxane PDMS, polymethyl methacrylate PMMA, polyvinyl acetate PVA or polyvinyl chloride PVC;
the first friction layer (11) comprises two braided fabric materials, wherein the two braided fabric materials have a difference of friction electrode sequences, and one of the braided fabric materials is selected from polyimide film, aniline formaldehyde resin film, polyoxymethylene film, polyamide film polyethylene glycol succinate film, cellulose acetate film, diallyl phthalate film, polyurethane elastomer film, styrene propylene copolymer film, styrene butadiene copolymer film, rayon film, polymethyl methacrylate film, polyvinyl alcohol film, polyisobutylene film, polyethylene terephthalate film, polyvinyl butyral film, chloroprene rubber film, butadiene propylene copolymer film, natural rubber film, polyacrylonitrile film and acrylonitrile vinyl chloride copolymer film; another is selected from polytetrafluoroethylene PTFE, polyethylene terephthalate PET, polyvinyl alcohol PVA and polyvinylpyrrolidone PVP;
the material of the second friction layer (21) is selected from polytetrafluoroethylene PTFE, polyethylene terephthalate PET, polyvinyl alcohol PVA, polyvinylpyrrolidone PVP, polydimethylsiloxane PDMS, polymethyl methacrylate PMMA and polyvinyl chloride PVC.
5. A flexible wearable friction nano-generator for collecting mechanical energy in an omnibearing multimode according to claim 1, 2 or 3, characterized in that the first conductive element (12) and the second conductive element (22) are made by plating on a flexible substrate coated with a mask plate by a magnetron sputtering method or by directly attaching an etched conductive film on the flexible substrate, and the mask plate is made of a pre-designed grid shape by laser cutting processing.
6. The flexible wearable friction nano-generator for collecting mechanical energy in an omnibearing multi-mode according to claim 4, wherein the first conductive element (12) and the second conductive element (22) are made by plating on a flexible substrate coated with a mask plate by a magnetron sputtering method or directly attaching an etched conductive film on the flexible substrate, and the mask plate is made by laser cutting processing in a pre-designed grid shape.
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103391020A (en) * | 2013-07-16 | 2013-11-13 | 国家纳米科学中心 | Multi-freedom-degree energy acquisition device based on friction nanometer power generator |
| CN104802350A (en) * | 2015-03-01 | 2015-07-29 | 中国乐凯集团有限公司 | Preparation method of intermediate film, intermediate film and nano-generator prepared from intermediate film |
| EP3086460A2 (en) * | 2015-04-21 | 2016-10-26 | Samsung Electronics Co., Ltd. | Triboelectric generator |
| CN106887969A (en) * | 2017-03-15 | 2017-06-23 | 苏州大学 | Self-charging system and wearable electronic based on flexible electric spinning reticular membrane |
| CN107769352A (en) * | 2016-08-19 | 2018-03-06 | 北京纳米能源与系统研究所 | A kind of transparent rechargeable thin film and mobile device |
| CN208078921U (en) * | 2018-03-22 | 2018-11-09 | 大连理工大学 | A kind of flexible wearable friction nanometer power generator of comprehensive multi-mode collecting mechanical energy |
-
2018
- 2018-03-22 CN CN201810255409.6A patent/CN108233762B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103391020A (en) * | 2013-07-16 | 2013-11-13 | 国家纳米科学中心 | Multi-freedom-degree energy acquisition device based on friction nanometer power generator |
| CN104802350A (en) * | 2015-03-01 | 2015-07-29 | 中国乐凯集团有限公司 | Preparation method of intermediate film, intermediate film and nano-generator prepared from intermediate film |
| EP3086460A2 (en) * | 2015-04-21 | 2016-10-26 | Samsung Electronics Co., Ltd. | Triboelectric generator |
| CN107769352A (en) * | 2016-08-19 | 2018-03-06 | 北京纳米能源与系统研究所 | A kind of transparent rechargeable thin film and mobile device |
| CN106887969A (en) * | 2017-03-15 | 2017-06-23 | 苏州大学 | Self-charging system and wearable electronic based on flexible electric spinning reticular membrane |
| CN208078921U (en) * | 2018-03-22 | 2018-11-09 | 大连理工大学 | A kind of flexible wearable friction nanometer power generator of comprehensive multi-mode collecting mechanical energy |
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