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88results about "Friction generators" patented technology

A triboelectric-based self-adapting self-powered flexible sensing device and a preparation method thereof

PendingCN122217364AImprove analytical abilityreduce dependenceBatteries circuit arrangementsSecondary cells
The application relates to a self-adaptive self-powered flexible sensing device based on triboelectricity and a preparation method thereof, which comprises a flexible device, a charging module and a single-chip circuit board; the flexible device comprises, from top to bottom, a triboelectric layer, an insulating layer, a potential layer and a battery layer; the triboelectric layer is connected with the charging module, the charging module is connected with the battery layer, and the battery layer is connected with the single-chip circuit board. The system collects signals of multiple electrode ports through a single-chip microcomputer and transmits the signals to a mobile phone or a computer terminal through Bluetooth wireless transmission, so that the convenience and expansibility of data acquisition are improved, and real-time monitoring and remote interaction application can be constructed.
Owner:SHANDONG UNIV

A power generation device and a power generation method based on gas-liquid two-phase flow

This invention relates to a power generation device and method based on gas-liquid two-phase flow, comprising: a liquid container, a gas flow inlet, a liquid inlet, a dividing chamber, a reaction chamber, and a conductive electrode; the gas flow inlet is connected to the gas flow inlet of the dividing chamber; the liquid inlet has one end sealed to the liquid inlet of the dividing chamber and the other end connected to the solution to be reacted in the liquid container; in the dividing chamber, the gas flow entering through the gas flow inlet divides and atomizes the solution to be reacted entering through the liquid inlet, forming a gas-liquid two-phase flow; the reaction chamber is connected to the gas-liquid outlet of the dividing chamber, and the gas-liquid two-phase flow enters the reaction chamber through the gas-liquid outlet; in the reaction chamber, the gas-liquid two-phase flow undergoes a frictional electrification reaction with the inner wall of the reaction chamber, forming a charged electric-liquid two-phase flow; the conductive electrode is disposed at the outlet of the reaction chamber and is used to acquire the charge in the charged electric-liquid two-phase flow.
Owner:LANZHOU INSTITUTE OF CHEMICAL PHYSICS CHINESE ACADEMY OF SCIENCES +1

A power generation system based on a friction nanogenerator

ActiveCN116877366BSolar heating energyFrom solar energyNanogeneratorHeat energy
The application discloses a kind of power generation systems based on friction nanogenerator, including photo-thermal power generation system, heat storage system and friction nanogenerator component.This system is a kind of comprehensive power generation system that TENG wind power generation system is combined with photo-thermal power generation system, the application will large-area TENG power generation system be arranged in solar photo-thermal power station reflector back with array distribution, saves the support part investment of TENG power generation system.Meanwhile, the electric energy of TENG power generation is directly converted into heat energy storage and is stored in the molten salt energy storage system matched with photo-thermal, realizes the energy storage function of wind power generation, and does not need to increase energy storage investment, saves the investment of downstream power transmission and transformation equipment, inverter and other equipment equipped with TENG power generation system, finally, due to the energy storage of TENG power generation system contribution, mirror field area of photo-thermal power generation system can be reduced, and the investment of photo-thermal power station itself will be reduced.
Owner:XIAN THERMAL POWER RES INST CO LTD

Droplet friction type nano-generator and method for manufacturing the same

ActiveJP7868891B1Special surfacesCoatings
This invention provides a method for manufacturing a droplet friction type nano-generator that has excellent power generation capabilities, with an open-circuit voltage and output charge of 230V and 315nC from a single droplet, good moisture resistance, and good mechanical durability and acid / alkali corrosion resistance. [Solution] The manufacturing method includes: step 1, mixing PDMS with a curing agent to prepare a PDMS solution; step 2, mixing PTFE particles with ethanol and ultrasonically dispersing them to obtain a PTFE suspension; step 3, knife-coating the mixture onto the surface of a substrate, vacuuming, and drying to pre-cure; step 4, spraying the PTFE suspension onto the surface of the object obtained in step 3, drying, and curing to form a coating on the surface of the substrate; and step 5, placing a top electrode at an intermediate position on the surface of the object obtained in step 4.
Owner:JIANGSU UNIV OF SCI & TECH

A multi-layer polarization-enhanced liquid-solid contact separation triboelectric nanogenerator structure

PendingCN122137260AFriction generatorsPower sensorNanogenerator
This invention provides a multilayer polarization-enhanced liquid-solid contact separation triboelectric nanogenerator structure, comprising, from bottom to top: a first electrode layer, a polarization-enhancing dielectric layer, a triboelectric layer, a second electrode layer, and a surface nanoparticle modification layer. Both the first and second electrode layers are made of copper foil and are used to collect charges generated by electrostatic induction. The polarization-enhancing dielectric layer is a PVDF thin film, used to enhance the interfacial charge storage capacity and electric field coupling strength, thereby enhancing the electrostatic induction effect and significantly improving the device's output voltage and current. The triboelectric layer is a FEP thin film, which can acquire electrons upon contact with the droplet. The surface nanoparticle modification layer is composed of PTFE nanoparticles, which adhere to the FEP thin film, further increasing the surface triboelectric charge density and thus improving the output voltage. This invention, through liquid-solid contact electrification and electrostatic induction mechanisms, can efficiently convert the mechanical energy of rainwater into electrical energy to provide power for low-power sensors in rainfall detection.
Owner:CHINA JILIANG UNIV

Self-powered vibration sensor based on friction nanometer generator

The utility model provides a self-powered vibration sensor based on a friction nanometer generator, and the sensor comprises a vibration sensor body which comprises a housing; the sleeve is arranged on the shell in a sleeving manner, and a mounting cavity is defined between the sleeve and the shell; the friction nanometer generator is arranged in the mounting cavity, the friction nanometer generator comprises a first dielectric film, a second dielectric film and a moving assembly, the second dielectric film is arranged on the shell, the moving assembly comprises a lantern ring and an elastic piece, the lantern ring movably sleeves the shell, the first dielectric film is arranged on the lantern ring and is in contact fit with the second dielectric film, and the elastic piece is arranged on the first dielectric film. The two ends of the elastic piece are connected to the lantern ring and the sleeve respectively. According to the self-powered vibration sensor based on the friction nanometer generator, the structure of the friction nanometer generator is simple, the friction nanometer generator can adjust the power generation friction area according to the vibration amplitude of a product tested by the vibration sensor, and the power generation amount of the friction nanometer generator can be improved.
Owner:NANTONG INST OF TECH

Multi-degree-of-freedom compound wave energy converter

The present application relates to a kind of multi-degree-of-freedom compound wave energy converter, belong to wave power generation technical field.The installation frame and power generation component, power generation component includes electromagnetic generator unit, nanometer friction power generation unit and piezoelectric power generation unit;Electromagnetic generator unit includes gravity pendulum and electromagnetic generator;Gravity pendulum is installed in installation frame around wave energy converter gravity center axis rotation, and one end is connected with the rotor of electromagnetic generator;Nanometer friction power generation unit includes several power generation components containing friction material, power generation component is installed in installation frame, and under the action of external force, relative motion occurs between power generation component, to generate electric energy;Piezoelectric power generation unit includes piezoelectric generator and water flow turbine;The rotor shaft of piezoelectric generator is connected with water flow turbine, and its rotor is made of piezoelectric material, and magnet is respectively arranged on rotor and stator.The present application can be fully and efficiently captured on multiple degrees of freedom to wave, energy conversion efficiency is high and the scope of application is wide.
Owner:NANTONG MARINE ADVANCED RESEARCH INSTITUTE SOUTHEAST UNIVERSITY +1

A pressure-heated composite material

PendingCN122092711Aquick responseThe effect of high-efficiency pressure-heat conversionNon-macromolecular adhesive additivesFilm/foil adhesivesHeterojunctionThin membrane
This invention discloses a pressure-induced heating composite material, comprising: a flexible support layer, which is a PI film; a first triboelectric material layer, which is a CNT-OH / PVDF-HFP composite film, attached to one side of the flexible support layer; a second triboelectric material layer, which is an AgNW / PDMS composite film, attached to the other side of the flexible support layer; a pyramidal microstructure is constructed on the surface of the second triboelectric material layer; and a thermoelectric conversion layer, attached to either the first or second triboelectric material layer. The thermoelectric conversion layer is prepared by combining Bi2Te3 / Sb2Te3 heterojunction nanosheets, PEDOT:PSS hydrogel, and Ti3C2TxMXene, with each component being doped with each other to form a uniform dot-like spatial distribution structure. The material of this invention exhibits high response under low pressure because the pyramidal microstructure increases the contact area change rate by 400% under low pressure (≤5kPa) and achieves a charge density of 1.2–1.5 mC / m², breaking through the high-pressure triggering bottleneck of existing materials.
Owner:DATONG CO POLYMER (XIAN) TECH CO LTD +1

An additive manufactured leaf-imitated tri-source composite energy harvesting device

This invention provides an additively manufactured leaf-like three-source composite energy harvesting device, belonging to the field of new energy and self-powered technology. The device includes a leaf-vein-like support substrate integrally formed by 3D printing, and integrated on it a droplet triboelectric unit, a piezoelectric conversion unit, and a photovoltaic conversion unit. Liquid-guided stripes on the surface of the leaf-vein-like support substrate optimize droplet spreading. The droplet triboelectric unit captures the mechanical energy of the droplet through the triboelectric effect of the bottom electrode, the triboelectric dielectric layer, and the top electrode. The piezoelectric conversion unit converts the substrate vibration into electrical energy. The photovoltaic conversion unit efficiently collects solar energy. These three units work together to achieve synchronous or time-sharing capture of the droplet impact mechanical energy and solar energy, and output stable electrical energy through a power management circuit. This invention features a compact structure, high integration, and simple fabrication process. It can operate in all weather conditions and is suitable for long-term self-powered scenarios such as IoT terminals, distributed sensor network nodes, and wearable electronic devices.
Owner:UNIV OF ELECTRONICS SCI & TECH OF CHINA

A vibration pickup member, a vibration pickup device, and a vibration power generator

PendingCN122268188APiezoelectric/electrostriction/magnetostriction machinesMechanical energy handlingAmbient vibrationVibration-powered generator
The present application belongs to the field of vibration power generation. It relates to a vibration pickup component for vibration power generator, which is composed of a square frame, a support, a vibrator swinging around a point above the center of gravity, and a anti-dropping assembly. It mainly plays the role of expanding the frequency band and picking up low vibration energy. It also relates to a vibration pickup device for electromagnetic vibration power generator and a vibration pickup device for composite vibration power generator, which are both composed of a vibration pickup component and a gimbals. Both of them can make the vibration pickup component pick up the omnidirectional external excitation. The latter also produces multiple types of feedback actions for various power generation units. It also relates to an electromagnetic vibration power generator and a composite vibration power generator. The former is composed of a vibration pickup device for electromagnetic vibration power generator, a permanent magnet, etc. The latter is composed of a vibration pickup device for composite vibration power generator, a permanent magnet, a piezoelectric and friction power generation unit, a wheel disc type friction nano power generation unit, etc. Both of them improve the power generation efficiency of picking up environmental vibration energy.
Owner:雷宇

Monolithic double-w-folded structure friction nanogenerator

PendingCN122203844AFriction generators
A monolithic dual W folding structure friction nanogenerator, comprising: an upper substrate, a lower substrate, a folding layer structure. The application designs a new folding type friction nanogenerator (Dual Wave-structured Triboelectric Nanogenerator, DW-TENG) by improving the folding mode, and the peak power of the DW-TENG is far higher than that of the existing folding type TENG device. The DW-TENG can not only realize excellent output performance, but also can obtain mechanical energy from linear motion and arc motion at the same time, and can provide sustainable energy support for sensors and other devices in practical applications. This feature shows good application potential in real scenarios such as electronic lock power supplement. The application significantly improves the output performance by enhancing the contact between the positive and negative friction layer materials. The integrated DW-TENG designed by the application can completely achieve the expected effect through the daily door opening and closing action to store the supplemented power, and meets the needs of real scenarios.
Owner:CHONGQING UNIV

A wide frequency domain space mechanical wave intelligent collection and dynamic distribution system and method based on multi-mode coupling and energy storage conversion matrix

The application discloses a wide-frequency-domain space mechanical wave intelligent collection and dynamic distribution system and method based on multimode coupling and energy storage conversion matrix, relates to the technical field of environmental micro-energy collection, micro-energy management and self-powered technology, and comprises the following: a wide-frequency capture and multimode conversion front-end module, which is used for frequency focusing on wide-band space mechanical waves and converting the mechanical waves into electric energy through a multi-physical field coupling mechanism; an adaptive energy routing controller, which is connected with the front-end module, is used for sensing the frequency spectrum and amplitude characteristics of mechanical waves in real time, and dynamically controls the distribution of energy conversion paths; and an energy storage conversion matrix module, which is combined with a reconfigurable DC-DC network through a heterogeneous energy storage unit, realizes the collaborative management of multiple time-varying energy inputs and the flexible matching of dynamic loads; and an intelligent energy scheduling center, which is based on the environment and system state for global optimization, enhances the adaptive ability of the system.
Owner:SHANDONG WAN GAO ELECTRONICS TECH

A friction nanogenerator and a preparation method thereof

This invention relates to a triboelectric nanogenerator and its preparation method, belonging to the technical field of triboelectric nanogenerators. The preparation method includes the following steps: S1, dispersing styrene-ethylene-butene-styrene block copolymer, polyvinylidene fluoride, and MXene nanomaterials in a mixed solvent to obtain a negative friction layer spinning solution; S2, using dynamic pattern-induced multi-material nanofiber electrospinning technology, forming a negative friction layer from the negative friction layer spinning solution; S3, dispersing thermoplastic starch, sodium carboxymethyl cellulose, plasticizer, bis(2-hydroxyethyl) disulfide, and dithiothreitol in water to obtain a positive friction layer film-forming solution; S4, forming a positive friction layer from the positive friction layer film-forming solution; S5, bonding the micro-nano structures of the positive and negative friction layers face-to-face to obtain the triboelectric nanogenerator. This generator combines high output, long lifespan, and flexibility, and can be adapted to diverse scenarios such as wearable electronics, industrial high-temperature sensing, and environmental mechanical energy harvesting.
Owner:SUZHOU UNIV

A method and apparatus for power frequency resonant energy harvesting in a transformer in a power system

The application discloses a method and device for transformer power frequency resonance energy collection in a power system, designs a cantilever beam type multi-tunnel rolling type friction nanogenerator energy collection device, and can effectively collect vibration energy generated by transformer power frequency resonance in the power system. The collected energy is effectively stored, and then is used for power supply of a sensor node and real-time monitoring of an operation state of the transformer. This provides a new scheme for stable operation of a smart grid and maintenance of long-distance power transmission.
Owner:BEIJING INST OF NANOENERGY & NANOSYST +2

Self-powered vehicle condition monitoring system and method of detection

The application provides a self-powered vehicle state monitoring system and a detection method, relates to the technical fields of mechanical design and signal analysis, and effectively solves the technical problem of monitoring the running state of a vehicle without power supply; the system comprises a top cover, a bottom cover, an electromagnetic energy collection module and a triboelectric signal collection module, the bottom of the top cover is provided with an annular table, the top of the bottom cover is rotationally connected with a rotor pendulum, the electromagnetic energy collection module comprises a plurality of coils and magnets, the plurality of coils are arranged on the side wall of the annular table at intervals in the circumferential direction of the annular table, and the plurality of magnets are arranged on the rotor pendulum; the triboelectric signal collection module comprises a friction body and a friction plate, the friction body is arranged at the bottom of the rotor pendulum and can rotate with the rotor pendulum, and the friction plate is arranged in the bottom cover and is in contact with the friction body. In the application, the rotor pendulum is used to receive inertial kinetic energy, and vibration characteristics are effectively transmitted, so that the application scenarios are not limited to the transportation field, and can be expanded to mechanical vibration monitoring, wave energy collection and monitoring and the like.
Owner:SOUTHWEST JIAOTONG UNIV

Power generating ear tag having adjustable angle for animals

PCT designated stageWO2026108662A1Friction generatorsAnimal husbandryNanogeneratorEar tag
A power generating ear tag having an adjustable angle for animals, said ear tag comprising a main housing (1) and a fixing piece (2). The fixing piece (2) is connected to the main housing (1) by means of an angle adjustment structure (3). The angle adjustment structure (3) comprises a rotating seat (31) arranged on the main housing (1), a rotating cavity (32) is provided in the rotating seat (31), and the rotating cavity (32) has a plurality of slots (33) distributed at intervals in a circumferential direction. The angle adjustment structure further comprises a rotating head (34) arranged on the fixing piece (2) and extending into the rotating cavity (32), and the rotating head (34) is provided with a snap tab (35) that can rotatingly switch between the slots (33). The fixing piece (2) and the main housing (1) are connected by means of the angle adjustment structure (3). When applied to a specific animal, the angle is adjusted to test the performance at different angles, so as to optimize the contact conditions of a triboelectric nanogenerator unit (4). Thus, the triboelectric nanogenerator unit (4) is always maintained at the optimal angle during use, such that the generation of triboelectric charges is maximized. This dynamic adjustment mechanism significantly improves energy harvesting efficiency.
Owner:ZJU HANGZHOU GLOBAL SCI & TECH INNOVATION CENT

Electromagnetic-friction nanohybrid generator for wind energy harvesting

ActiveCN119641550Befficient conversionMachines/enginesWind motor combinations
This invention discloses an electromagnetic-triboelectric nanogenerator for wind energy harvesting, belonging to the field of wind energy technology. It includes a stator housing, within which a triboelectric nanogenerator module and an electromagnetic generator module are encapsulated. The electromagnetic generator module and the triboelectric nanogenerator module are coupled and interlocked, connected via a coaxial connector. This invention employs the aforementioned electromagnetic-triboelectric nanogenerator for wind energy harvesting, redesigning its basic configuration and working principle. Based on a soft-contact triboelectric nanogenerator with a ternary dielectric triboelectric effect, this hybrid electromagnetic generator achieves highly efficient energy conversion by utilizing the triboelectric properties of the soft-contact material.
Owner:XINJIANG UNIVERSITY

A structure vibration self-powered cable force gauge based on electrostatic and piezoelectric principles

The application discloses a structure vibration self-powered cable force meter based on electrostatic and piezoelectric principles, which comprises a cable force sensor, a wind power energy capturer, a power management module and a sensing signal wireless transmission module. The cable force sensor is installed on a cable and connected with the sensing signal wireless transmission module, and an electric potential difference is generated based on the electrostatic and piezoelectric principles to form an electric current, and the sensing signal wireless transmission module is used to send the sensed signal; the wind power energy capturer is electrically connected with the power management module, and the power management module is electrically connected with the sensing signal wireless transmission module; the wind power energy capturer comprises a support sheet, a blunt body shell, a base, a piezoelectric sheet, a fixed contact plate, a sliding contact plate, a positive friction power generation sheet fixed on the upper surface of the fixed contact plate and a negative friction power generation sheet fixed on the lower surface of the sliding contact plate, and can supply power for the sensing signal wireless transmission module. The device does not need external power supply and a large number of wiring, has high durability and high recognition accuracy.
Owner:ZHEJIANG UNIV

An electronic non-affinity friction nanogenerator and a heart disease detector and a preparation method thereof

The present application relates to the technical field of medical devices, in particular to an electronic non-affinity friction nanogenerator and a heart disease detector and a preparation method thereof. The generator comprises a first friction layer, a second friction layer, a first electrode and a second electrode; by adjusting the composition of the same material, the electron gain and loss ability of the material is changed, the first friction layer and the second friction layer are made of the same material, and the composition of the material used by the first friction layer and the second friction layer is different, so that the electron gain and loss ability of the first friction layer and the second friction layer is different, thereby realizing electronic non-affinity friction nanogeneration, using the high sensitivity to pressure to extract the characteristic signal points of the pulse wave, realizing the function of self-powered single-point detection of human heart rate, diastolic pressure and systolic pressure; in addition, it is sensitive and high, and can detect the subtle changes of the pulse wave, and since the pulse wave of a patient with heart disease is different from the normal pulse wave, it can be applied to the preparation of a heart disease detector.
Owner:XIAMEN UNIV

Vibration harvesting component, vibration harvesting device, and vibration power generator

The invention belongs to the field of vibration power generation. The vibration harvesting component for vibration power generator comprises a rectangular-shaped frame, a pillar. It expands the frequency band and harvests low vibration energy. It involves a vibration harvesting device used in electromagnetic vibration power generator and a vibration harvesting device used in composite vibration power generator, both of which comprises a vibration harvesting component and a gimbal. Both devices make the vibration harvesting components to capture omnidirectional external excitation, the latter also generates multiple types of feedback actions for various power generation units to utilize. It involves an electromagnetic vibration power generator and a composite vibration power generator. The former comprises a vibration harvesting device used in electromagnetic vibration power generator, the latter comprises a vibration harvesting device used in composite vibration power generator. Both improve the energy generation efficiency.
Owner:LEI YU

Self-powered solid-state non-contact collision avoidance sensor based on liquid tvng

ActiveCN121877235BForce measurement using piezo-electric devicesMeasurement of force applied to control membersDevice materialMechanical engineering
The application relates to the technical field of semiconductor devices, in particular to a self-powered solid non-contact avoidance sensor based on a liquid TVNG, which solves the technical problems of serious mechanical wear, complicated wiring and non-contact monitoring insensitivity of a fine gap of a contact type limit switch or a pressure-sensitive film installed at the front end of a mechanical arm, and comprises a gold electrode layer, a semiconductor layer and a metal moving electrode, the gold electrode layer is plated on the bottom surface of the semiconductor layer, the top surface of the semiconductor layer is fixedly connected with a hemispherical flexible packaging cover body, the metal moving electrode is fixedly connected to the inner top of the flexible packaging cover body, a certain gap is kept between the metal moving electrode and the top surface of the semiconductor layer, and interface liquid is filled in the gap. The sensor adds the interface liquid with a thickness of mm between the metal moving electrode and the semiconductor layer, an instantaneous signal is generated when the interface liquid slides relative to the semiconductor layer, and mm-level rapid sensing feedback with high sensitivity is successfully realized.
Owner:TAIYUAN UNIVERSITY OF TECHNOLOGY

A wave energy harvester based on a frictional nanogenerator

The application relates to the technical field of marine environment monitoring, and discloses a wave energy collector based on a friction nanogenerator, which comprises an outer floating cylinder body, fixed plates are symmetrically fixedly installed in the outer floating cylinder body, and a swing block shaft is installed between the fixed plates, and external power supply dependence is completely eliminated; the application realizes direct conversion of wave mechanical energy through rotation of an independent layer type friction nanogenerator, and in combination with a high-efficiency energy management system, the application can realize self-powered supply of a monitoring system, greatly reduces equipment laying and maintenance costs, and is suitable for long-term monitoring in areas such as the open sea and the deep sea which are not covered by power grids; the signal has strong anti-interference capability; the application discards traditional time domain amplitude parameters, adopts a signal period and a main frequency as characteristic parameters, converts unstable time domain signals into stable frequency domain signals through an FFT algorithm, effectively avoids interference of environmental factors and device wear on signals, and realizes stable correlation between the characteristic parameters and wave physical parameters.
Owner:CHINA UNIV OF PETROLEUM (EAST CHINA)

A bearing, power supply structure and monitoring system based on the frictional volt effect

The application discloses a bearing, a power supply structure and a monitoring system based on a friction voltage effect, the bearing comprising oppositely arranged conductor rings and semiconductor rings, a retainer and a plurality of conductive balls between the conductor rings and the semiconductor rings; the conductor rings, the semiconductor rings and the retainer are annular and coaxially arranged, the conductor rings or the semiconductor rings can rotate along the central axes thereof, the retainer has a plurality of ball holes uniformly distributed around the central axis thereof, the plurality of conductive balls are arranged in the plurality of ball holes in one-to-one correspondence, the conductive balls are in contact with the surfaces of the conductor rings and the semiconductor rings, and the conductive balls can be in frictional contact with the semiconductor rings to form a Schottky interface, and the semiconductor rings have conductive electrodes in ohmic contact therewith. The bearing can more effectively collect and utilize friction energy, and greatly improve energy utilization.
Owner:BEIJING INST OF NANOENERGY & NANOSYST

A triboelectric nanogenerator and its preparation method

PendingCN122092706AIncrease the effective contact areahigh yieldCoatingsFriction generatorsNanogeneratorMicrosphere
This invention provides a triboelectric nanogenerator and its fabrication method. The generator operates in a vertical contact-separation mode, with a positive friction layer of PET film and a negative friction layer of PDMS composite film with a single layer of dense SiO₂ microspheres inserted on its surface. The fabrication process employs a two-step spin-coating method: first, a PDMS solution is spin-coated onto a substrate; then, a suspension of SiO₂ microspheres is spin-coated onto the uncured surface. After heating and curing, a composite negative friction layer is formed, which is then assembled with electrodes and a support structure. This invention significantly increases the triboelectric contact area and enhances charge trapping capability by constructing the SiO₂ microsphere insertion layer, thereby greatly improving output performance. Furthermore, the fabrication process is simple and low-cost, making it suitable for powering microelectronic devices and self-powered sensing applications.
Owner:JIANGSU UNIV

Preparation and application of a full-system TENG friction layer composite material

This invention provides a method for preparing and applying a TENG friction layer composite material based on a complete system, belonging to the field of nano-energy materials and devices. The method includes the following steps: reacting SiO2 nanoparticles with KH556 silane coupling agent in ethanol, followed by centrifugation, washing, and drying to obtain KH556-SiO2 modified powder; using PFPE as the core material, forming an emulsion in the presence of an emulsifier, and using urea-formaldehyde resin to polymerize in situ on its surface to form a wall material, followed by centrifugation, washing, and drying to obtain PFPE microcapsules; mixing PDMS prepolymer, curing agent, PU solution, and zinc acetate, followed by stirring and degassing to obtain a uniform prepolymer matrix; adding a portion of the prepolymer matrix to KH556-SiO2 to form a surface trap liquid, which is then spin-coated onto the surface of a PTFE template to form a nanoscale trap layer; mixing the remaining prepolymer matrix with PFPE microcapsules and casting it onto the trap layer, allowing it to stand at room temperature to wet, forming a composite with a gradient structure; and vacuum curing and demolding the composite to obtain a composite film in which the surface trap layer and the deep matrix are tightly bonded.
Owner:GUANGXI COLLEGE OF WATER RESOURCES & ELECTRIC POWER

A biomimetic jellyfish-based hydroelectric generator and a self-powered marine monitoring system

This application relates to a biomimetic jellyfish-based hydroelectric generator and a self-powered marine monitoring system. The hydroelectric generator includes a biomimetic jellyfish structure, a mounting shell, and a triboelectric nano-power generation component. The biomimetic jellyfish structure includes a crown-shaped foam board and an annular elastic sheet, with the inner side of the annular elastic sheet connected to the outer side of the crown-shaped foam board. The crown-shaped foam board is fixedly connected to the top of the mounting shell, and the triboelectric nano-power generation component is installed inside the mounting shell. The triboelectric nano-power generation component includes multiple spaced electrode plates coaxial with the crown-shaped foam board. The electrode plates are divided into a first electrode plate and a second electrode plate. The first electrode plate is rigidly installed inside the mounting shell, and the second electrode plate is elastically installed inside the mounting shell. The triboelectric nano-power generation component generates electricity at least based on the contact separation between the first and second electrode plates. This invention solves the problem of low power generation efficiency in current small-scale wave energy conversion devices.
Owner:GUANGZHOU INSTITUTE OF BLUE ENERGY +1

Triboelectric nanogenerator with mxene-coated stretchable polyurethane fiber, and preparation method therefor and application thereof

PCT designated stageWO2026123880A1Liquid surface applicatorsForce measurement
Disclosed in the present invention are a triboelectric nanogenerator with an MXene-coated stretchable polyurethane fiber, and a preparation method therefor and an application thereof. The triboelectric nanogenerator of the present invention presents a layered coaxial linear structure as a whole, and comprises a stretchable layer, a conductive layer, a triboelectric layer and a two-dimensional material layer from inside to outside, wherein the stretchable layer is a polyurethane (PU) layer; the conductive layer is formed by means of tightly winding a silver wire or a silver-coated nylon wire around the stretchable layer; the triboelectric layer is a polyamide (PA) layer, which is used for generating a triboelectric effect; and the two-dimensional material layer is used for improving the electrical output performance. The present invention utilizes a two-step braiding process to produce a triboelectric nanogenerator with an MXene-coated stretchable polyurethane fiber (FM-TENG). The triboelectric nanogenerator (F-TENG) prepared in the present invention has good mechanical properties, stable electrical properties and high customizability, and can be widely used in the fields of human motion recognition, energy harvesting, self-powered sensing, etc.
Owner:SHANGHAI SECOND POLYTECHNIC UNIVERSITY

Power generation device, battery system, and electronic device

The application provides a power generation device, a battery system and an electronic device, the power generation device comprising a power generation assembly and a driving assembly, the power generation assembly is configured to be arranged in a living body, the driving assembly is configured to be located outside the living body, the power generation assembly comprises a power generation unit and a first magnetic part, the first magnetic part is movably arranged on the power generation unit, the driving assembly comprises an electromagnet and a current generator, the current generator is electrically connected with the electromagnet, and the current generator passes current to the electromagnet, and the current passed by the current generator is configured to make the electromagnet form a dynamic magnetic field, so that the electromagnet drives the first magnetic part to reciprocate relative to the power generation unit. The power generation device improves the convenience and charging efficiency of the battery system.
Owner:ZHUHAI COSMX BATTERY CO LTD

Device for generating and storing energy based on carbon nanotubes and method for manufacturing same

This invention discloses a device and preparation method for generating and storing energy based on carbon nanotubes, relating to the field of biomimetic aircraft technology, including wing-borne functional components and airborne main components; the wing-borne functional components include a nano-power generation module and a flexible energy storage module stacked inside a flexible biomimetic wing; the nano-power generation module includes a negatively charged triboelectric layer and a carbon nanotube thin film electrode; the flexible energy storage module includes a carbon nanotube fiber skeleton and a gel electrolyte layer; the airborne main components include a biomimetic main module, an energy management module, and a sensor module; this invention integrates the nano-power generation module and the flexible energy storage module into the flapping wing, realizing in-situ acquisition and storage of mechanical energy, solving the problems of traditional biomimetic flapping wing aircraft relying on the main power supply of the fuselage for limited endurance, difficulty in achieving self-powering, and difficulty in environmental perception.
Owner:QINGDAO UNIV OF SCI & TECH

Regenerative intrusion-extrusion shock absorber

PendingEP4752393A1SpringsLiquid based dampers
The present invention refers to shock absorber, to a method of storing and / or delivering electricity comprising said shock absorber, the use of the shock absorber to store or deliver electricity such as in a vehicle; and to a vehicle comprising the shock absorber.
Owner:FUNDACION CENT DE INVESTIGACION COOP DE ENERGIAS ALTERNATIVAS CIC ENERGIGUNE FUNDAZIOA +1