WO2021237908A1 - Générateur hybride flexible, son procédé de préparation et son utilisation, et dispositif autochargeable flexible - Google Patents

Générateur hybride flexible, son procédé de préparation et son utilisation, et dispositif autochargeable flexible Download PDF

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Publication number
WO2021237908A1
WO2021237908A1 PCT/CN2020/103926 CN2020103926W WO2021237908A1 WO 2021237908 A1 WO2021237908 A1 WO 2021237908A1 CN 2020103926 W CN2020103926 W CN 2020103926W WO 2021237908 A1 WO2021237908 A1 WO 2021237908A1
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Prior art keywords
polyvinylidene fluoride
fiber
hybrid generator
electrode layer
composite fiber
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PCT/CN2020/103926
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English (en)
Chinese (zh)
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龚子丹
马正宜
张倩倩
陈志超
陈锦潮
孙泽基
林乾文
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深圳技术大学
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Publication of WO2021237908A1 publication Critical patent/WO2021237908A1/fr

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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02N—ELECTRIC MACHINES NOT OTHERWISE PROVIDED FOR
    • H02N2/00—Electric machines in general using piezoelectric effect, electrostriction or magnetostriction
    • H02N2/18—Electric machines in general using piezoelectric effect, electrostriction or magnetostriction producing electrical output from mechanical input, e.g. generators
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F1/00—General methods for the manufacture of artificial filaments or the like
    • D01F1/02—Addition of substances to the spinning solution or to the melt
    • D01F1/10—Other agents for modifying properties
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F6/00—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof
    • D01F6/44—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from mixtures of polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds as major constituent with other polymers or low-molecular-weight compounds
    • D01F6/48—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from mixtures of polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds as major constituent with other polymers or low-molecular-weight compounds of polymers of halogenated hydrocarbons
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F6/00—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof
    • D01F6/88—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from mixtures of polycondensation products as major constituent with other polymers or low-molecular-weight compounds
    • D01F6/94—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from mixtures of polycondensation products as major constituent with other polymers or low-molecular-weight compounds of other polycondensation products
    • 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
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02N—ELECTRIC MACHINES NOT OTHERWISE PROVIDED FOR
    • H02N2/00—Electric machines in general using piezoelectric effect, electrostriction or magnetostriction
    • H02N2/22—Methods relating to manufacturing, e.g. assembling, calibration

Definitions

  • the invention relates to the field of power generation technology, in particular to a flexible hybrid generator, a preparation method and application, and a flexible self-charging device.
  • the mechanical energy produced by the human body's daily activities has the advantages of continuity, freedom from environmental and weather restrictions, and no pollution. Collecting the mechanical energy of human activities to generate electrical energy to supply these electronic devices can extend the battery life of the electronic devices.
  • the flexible generator in the prior art has the problem of low output power.
  • the purpose of the present invention is to provide a flexible hybrid generator, a preparation method and application, and a flexible self-charging device, so as to solve the problem of low output power of the flexible generator in the prior art.
  • a flexible hybrid generator which includes:
  • An upper electrode layer, a lower electrode layer, and a plurality of power-generating fibers whose one end is connected to the upper electrode layer and the other end is connected to the lower electrode layer;
  • the power generation fiber includes piezoelectric power generation fiber and friction power generation fiber;
  • the piezoelectric power generation fiber is a polyvinylidene fluoride nanofiber/silver nanowire composite fiber
  • the friction power generation fiber is polydimethylsiloxane/nanographite composite fiber.
  • the power generation fiber is a spiral power generation fiber.
  • a method for preparing a flexible hybrid generator as described above which includes:
  • the two ends of the polyvinylidene fluoride nanofiber/silver nanowire composite fiber and the polydimethylsiloxane/nanographite composite fiber are respectively fixed in the upper electrode layer and the lower electrode layer to prepare a flexible hybrid generator .
  • the preparation of the polyvinylidene fluoride nanofiber/silver nanowire composite fiber specifically includes:
  • the mixed solution is subjected to electrostatic spinning to prepare polyvinylidene fluoride nanofiber/silver nanowire composite fiber.
  • the method for preparing the flexible hybrid generator wherein, in the mixed solution containing polyvinylidene fluoride iron and silver nanowires, the mass percentage of the polyvinylidene fluoride iron is 18 wt%.
  • the method for preparing the flexible hybrid generator wherein, in the mixed solution containing polyvinylidene fluoride iron and silver nanowires, the mass percentage of the silver nanowires is 2.0 wt%.
  • the polydimethylsiloxane/nanographite composite fiber is a polydimethylsiloxane/nanographite composite fiber containing Bi 0.5 Na 0.5 TiO 3 particles.
  • the mass percentage of the graphite nano particles in the polydimethylsiloxane/graphite nanometer composite fiber is 3.0 wt%.
  • a flexible self-charging device which includes: the flexible hybrid generator as described above.
  • the polyvinylidene fluoride nanofiber/silver nanowire composite fiber is used to make a piezoelectric generator, and the polydimethylsiloxane/nanographite composite fiber is used for
  • a friction piezoelectric hybrid generator is obtained after the two are combined, wherein the polyvinylidene fluoride nanofiber/silver nanowire composite fiber and the polydimethylsiloxane/nanographite composite fiber It has a high dielectric constant, which can reduce dielectric loss and greatly increase output power.
  • Fig. 1 is a schematic diagram of the structure of the flexible hybrid generator in the present invention.
  • the present invention provides a flexible hybrid generator, a preparation method and application thereof, and a flexible self-charging device.
  • a flexible hybrid generator a preparation method and application thereof
  • a flexible self-charging device a flexible self-charging device.
  • the present invention provides a flexible hybrid generator, which includes:
  • the power generation fiber 2 includes piezoelectric power generation fiber and friction power generation fiber;
  • the piezoelectric power generation fiber is a polyvinylidene fluoride nanofiber/silver nanowire composite fiber
  • the friction power generation fiber is polydimethylsiloxane/nanographite composite fiber.
  • each of the polyvinylidene fluoride nanofiber/silver nanowire composite fiber and the polyvinylidene fluoride nanofiber/silver nanowire composite fiber constitute a nano generator; multiple power generation fibers 2 Regularly or alternately arranged between the upper electrode layer 1 and the lower electrode layer 3, so that the friction power generation fibers can generate electricity by friction with the fibers in contact with each other, and the piezoelectric power generation fibers generate electricity during the extrusion process, That is, the multiple power generation fibers 2 constitute a hybrid power generation layer; the upper and lower electrode materials are connected by a nano generator, so that the upper electrode layer 1 and the lower electrode layer 3 form a capacitor, and the electrical energy generated by the nano generator is stored in The capacitor (in the upper electrode layer 1 and the lower electrode layer 3.
  • the upper electrode layer 1 and the lower electrode layer 3 are made of flexible electrode materials.
  • the electrode material is conductive fiber cloth.
  • the polyvinylidene fluoride nanofiber/silver nanowire composite fiber is used for making piezoelectric generator, and the polydimethylsiloxane/nanographite composite fiber is used for making friction Generator, the friction piezoelectric hybrid generator is obtained after the two are combined, wherein the polyvinylidene fluoride nanofiber/silver nanowire composite fiber and the polydimethylsiloxane/nanographite composite fiber have higher
  • the dielectric constant can reduce the dielectric loss and greatly increase the output power.
  • the flexible hybrid generator of the present invention can overcome the shortcomings of low output voltage of a single piezoelectric nano generator and low output current of a single friction nano generator, and can improve the output power density of the composite nano generator.
  • the power generation fiber 2 is a spiral power generation fiber 2.
  • the helical power-generating fiber 2 has a spring-like structure, and therefore can also be referred to as a spring-shaped power-generating fiber 2.
  • the flexible hybrid generator can have good compression resilience performance.
  • the helical power-generating fibers 2 interlace each other to form a porous three-dimensional structure, which can exhibit good compression resilience under pressure. This performance can reduce the most common problem in current sensors: the hysteresis effect, so Can be used to make pressure sensors.
  • the flexible hybrid generator can also be provided with a spacer fabric layer, for example, between the upper electrode layer 1 and the lower electrode layer 3.
  • the spacer fabric layer can be made of highly elastic fibers with a spiral structure. , Used to further improve the resilience performance between the upper electrode layer 1 and the lower electrode layer 3. It can be seen that the present invention prepares a friction-piezoelectric hybrid nano generator with spacer fabric, thereby improving the working efficiency of the device.
  • the spiral structure of the power generation fiber 2 has high elasticity, coupled with the excellent space structure of the spacer fabric, has good compression resilience and other unique mechanical properties, and can rebound quickly to generate electricity under pressure, and The mechanical energy absorbed under pressure is converted into electrical energy more efficiently.
  • the present invention provides a method for preparing a flexible hybrid generator, which includes:
  • the polyvinylidene fluoride nanofiber/silver nanowire composite fiber and the polydimethylsiloxane/nanographite composite fiber are respectively fixed in the upper electrode layer 1 and the lower electrode layer 3 to prepare a flexible hybrid generator.
  • the invention adopts polyvinylidene fluoride-trivalent iron/silver nanowire and polyvinylidene dimethylsiloxane/graphite nano composite material and polyvinylidene fluoride/nano boron oxide nanofiber membrane, polyvinylidene fluoride-trivalent iron
  • the performance comparison of nanofibers proposes and prepares silver nanowire modified composite materials to improve the power generation performance of generators.
  • the peak open circuit voltage and peak current of the vinylidene fluoride-trivalent iron/silver nanowire and polyvinylidene dimethylsiloxane/graphite nanocomposite material under 5.1M ⁇ are 33.97V and 4 ⁇ A, respectively, and the peak compressive force is 1500N .
  • the maximum current of the polyvinylidene fluoride/nano boron oxide nanofiber membrane and the polyvinylidene fluoride-ferric iron nanofiber is 0.78 ⁇ A, the maximum voltage is 27.1V, and the maximum output power is 0.078mW.
  • the invention prepares the silver nanowire modified composite material to improve the power generation performance of the generator, and the result proves that it has good output performance and output stability.
  • polyvinylidene fluoride nanofibers/silver nanowires specifically includes:
  • the mixed solution containing polyvinylidene fluoride iron and silver nanowires is subjected to electrostatic spinning to prepare polyvinylidene fluoride nanofiber/silver nanowire composite fiber.
  • the precursor solution formed by mixing and stirring the prepared zinc oxide + ethanol + DMF + acetic acid + PVP is first loaded into the syringe, and positive high voltage is applied to the end of the needle, and the receiving device is connected to negative high voltage or grounded. In this way, an electric field is formed between the needle tip and the receiving device. Under the action of an electric field, the charged solution will generate an electric field force in the opposite direction to the surface tension of the solution. As the applied voltage increases, the electric field force will increase accordingly. When the electric field force reaches a certain value, under the combined action of the electric field force and the surface tension, the droplet at the tip of the needle will be drawn into a cone shape, that is, a Taylor cone is formed.
  • Electrospinning related parameters are as follows: solution advancing speed is about 0.3 ⁇ L. polymer viscosity is 0.03-0.08g/m1. spinning voltage is 18-22kV, curing distance is 18-25cm. Humidity is controlled within 60%.
  • the invention prepares piezoelectric composite materials with different proportions of silver nanowires. Specifically, during the preparation process, the present invention tested silver nanowires with mass fractions of 1.0wt%, 1.5wt%, 2.0wt%, 2.5wt%, and 3.0wt% respectively, and found that the piezoelectricity of the silver nanowires at 2.0wt% The polymer nanofiber experiment has the best effect.
  • the mass percentage of polyvinylidene fluoride iron is 18 wt%; the mass percentage of silver nanowires is 2.0 wt% %.
  • the proportion of silver nanowires is 2.0 wt%, the prepared composite material has the best effect.
  • the polyvinylidene fluoride-containing iron and silver nanowires can be made into polyvinylidene fluoride nanofiber/silver nanowire composite fibers by electrostatic spinning, and then the polyvinylidene fluoride nanofiber/silver nanowire composite fiber can be made
  • the ethylene nanofiber/silver nanowire composite fiber is woven into a polyvinylidene fluoride nanofiber/silver nanowire film, and the prepared polyvinylidene fluoride nanofiber/silver nanowire film can also be used to make a piezoelectric power generation film.
  • the diameter of the polyvinylidene fluoride nanofiber/silver nanowire composite fiber ranges from 200 nm to 700 nm, and the diameter of the silver nanowire is 120 nm.
  • polyvinylidene fluoride nanofibers/Silver nanowires (Polyvinylidene fluoride nanofibers/Silver nanowires) composite fibers are used to make piezoelectric generators.
  • the electrospinning method is used to prepare a composite fiber containing 2.0% by weight of silver nanowires in an 18% by weight polyvinylidene fluoride iron solution.
  • the diameter of the polyvinylidene fluoride nanofiber/silver nanowire composite fiber ranges from 200 nm to 700 nm, and the diameter of the silver nanowire is about 120 nm.
  • the peak open circuit voltage and the peak current under 5.1M ⁇ are 33.97V and 4 ⁇ A, respectively.
  • the peak compressive force is 1500N respectively.
  • the invention adopts polydimethylsiloxane (PDMS)/nano-graphite (Polydimethylsiloxane/Nano-graphite) composite fiber to prepare a friction generator.
  • PDMS polydimethylsiloxane
  • Nano-graphite Polydimethylsiloxane/Nano-graphite composite fiber
  • the mass percentage of the graphite nano particles in the polydimethylsiloxane (PDMS)/graphite nanometer composite fiber is 3.0 wt%.
  • the experiment found that the ratio of graphite nanoparticles in the polydimethylsiloxane/graphite nanocomposite fiber is 3.0wt%, which is the best ratio.
  • the ratio of graphite nanoparticles is greater than 3.0wt%, a local area conductive network will be formed. Deteriorate device performance.
  • the Bi 0.5 Na 0.5 TiO 3 particles and nano graphite are dispersed in the polydimethylsiloxane, and the Bi 0.5 Na 0.5 TiO 3 particles are prepared by electrospinning.
  • Polydimethylsiloxane (PDMS)/Nanographite composite fiber are used as polydimethylsiloxane (PDMS)/Nanographite composite fiber.
  • the piezoelectric generator and the friction generator play two roles: generating piezoelectricity and triboelectricity.
  • the hybrid generator can generate peak open circuit voltage and peak current, resulting in a lower resistive load.
  • the flexible hybrid generator is prepared by compounding the polyvinylidene fluoride nanofiber/silver nanowire composite fiber and the polydimethylsiloxane/nanographite composite fiber, specifically Including: using polyvinylidene fluoride nanofiber/silver nanowire composite fiber as piezoelectric power generation fiber; using polydimethylsiloxane/nanographite composite fiber as friction power generation fiber.
  • the two ends of the polyvinylidene fluoride nanofiber/silver nanowire composite fiber and the polydimethylsiloxane/nanographite composite fiber are respectively fixed in the upper electrode layer 1 and the lower electrode layer 3 to prepare a flexible hybrid generator,
  • the fixing method may be adhesive fixing.
  • the polyvinylidene fluoride nanofiber/silver nanowire composite fiber and the polydimethylsiloxane/nanographite composite fiber are further woven into a textile film through a weaving process, and then combined with the upper electrode layer 1 and the lower electrode layer.
  • the material of the electrode layer can be conductive fiber cloth, but it is not limited to this.
  • the material of the power generation fiber 2 may be the interphase material of the polyvinylidene fluoride nanofiber/silver nanowire, the polydimethylsiloxane/nanographite, and the electrode layer material.
  • Coated composite wire is a fiber with a multi-layer structure, wherein the materials of each adjacent layer are different, and the materials of each layer are selected from polyvinylidene fluoride nanofibers/silver nanowires, the polydimethylsiloxane /Nano graphite, one of the electrode layer materials, and the relative movement between the layers can be carried out to a certain extent.
  • the various layers in the composite wire can perform relative activities, for example, during the stretching and recovery process, displacement and friction between the different layers will be generated, thereby converting mechanical energy into electrical energy, that is, the composite wire is a kind of power generation Ability of fiber.
  • the preparation method of the composite wire may be prepared by a coating method. For example, by sequentially coating polyvinylidene fluoride nanofibers/silver nanowires, the polydimethylsiloxane/nanographite, and electrode layer materials on the core material fibers.
  • the core material fiber may be a highly elastic fiber material or one of the above-mentioned materials.
  • the preparation method of the composite wire can also be achieved by separately making tubular fibers covered with polyvinylidene fluoride nanofibers/silver nanowires, the polydimethylsiloxane/nanographite, and electrode layer materials.
  • the inner diameters of the fibers are not the same. By nesting tubular fibers with different inner diameters, a composite yarn with a multilayer structure is formed.
  • a plurality of the power generation fibers 2 are arranged in a staggered manner.
  • multiple rows of power generation fibers 2 are formed, and the power generation fibers 2 in adjacent rows are inclined in different directions.
  • one row of power generation fibers 2 is inclined from left to right, and is opposite to that.
  • the power-generating fibers 2 in adjacent rows are inclined from right to left, thereby forming a staggered arrangement of multiple power-generating fibers 2.
  • the piezoelectric power generation fiber and the friction power generation fiber are entangled with each other.
  • the piezoelectric power generation fiber and the friction power generation fiber are entangled and woven into a fiber bundle, and then the two ends of the fiber bundle are fixed to the upper electrode layer 1 and the lower electrode layer 3, respectively. middle.
  • the number of the piezoelectric power generation fibers and the friction power generation fibers are the same, and one of the piezoelectric power generation fibers and one of the friction power generation fibers are helically wound and woven into a fiber bundle.
  • the fiber bundle may be formed by spirally winding the piezoelectric power generation fiber and the friction power generation fiber with each other to improve the rebound effect and the friction effect.
  • the composite fiber of the present invention has high output power and good flexibility, and can avoid the damage of the nano generator device structure caused by the stretching, twisting, bending and other deformations caused by the human body during the movement process, and shortening its service life. problem.
  • the invention prepares flexible composite materials with high-voltage electrical effects and flexible piezoelectric composite materials with stretchable electrodes. Specifically, the present invention prepares polyvinylidene fluoride nanofibers with conductive fabric electrodes, polyvinylidene fluoride-iron trioxide nanocomposite fiber materials, polydimethylsiloxane/lead-free piezoelectric ceramic composite fiber materials . In addition, the present invention improves the energy conversion efficiency and energy density by mixing conductive nanomaterials (such as silver nanowires, graphite nanoparticles or silver nanoparticles) with piezoelectric materials.
  • conductive nanomaterials such as silver nanowires, graphite nanoparticles or silver nanoparticles
  • the present invention uses the piezoelectric effect and the triboelectric effect to realize a hybrid nano-generator, and integrates the principle of the nano-generator with textile technology. While realizing the self-powered sensing and monitoring function, it greatly improves the user experience, and Improve the conversion efficiency of flexible friction nanogenerators, store energy, and lay the foundation for self-powered sensing systems.
  • the present invention also provides a flexible self-charging device, which includes: the flexible hybrid generator as described above.
  • the present invention constructs an ultra-light flexible self-charging system, which includes a friction piezoelectric nano generator (flexible hybrid generator) based on electrospinning fibers as an energy collector; Supercapacitors (EP-SC) of silk fiber mesh film are used as energy storage devices.
  • the energy generated by the pulse output of the friction piezoelectric hybrid generator will be charged in the capacitor formed by the textile layer as the power source of the wearable electronic device.
  • the extraction circuit adopts commercial integrated circuits (LTC3588-1 and LTC 4071) for design, research and optimization to increase power output.
  • the flexible hybrid generator of the present invention has very good flexibility and can be applied to clothes for collecting mechanical energy generated by human activities. Specifically, the flexible hybrid generator of the present invention can closely adhere to human skin under continuous external forces in the form of twisting, stretching, bending and shearing, and stable and high-precision measurements can be obtained.
  • the flexible hybrid generator of the present invention has the performance of light weight, small size, high sensitivity and durability, so that it can be used in the technology of measuring physiological signals of the elderly.
  • the present invention enables soft sensing electronic devices to perform various active sensing and interactive tasks, thereby establishing a self-driving wearable human body signal sensor system.
  • the invention obtains a textile fabric flexible sensing system through a friction-piezoelectric hybrid nano power generation device based on a spiral structure spacer fabric, and realizes fabric sensing.
  • the fit to the uneven surface of the body makes it easier for the sensor to measure the relevant parameters of the body, and improves the fit and accuracy of the sensing system.
  • the joint sensor constitutes an ultra-light self-driving wearable sensor system.
  • the self-driving wearable sensing system of the present invention has both the comfort of fabrics and the functionality of absorbing biological signals, and is simple, convenient, safe, low-cost, low-energy-consuming, soft, lightweight, easily deformed and resistant to bending. .
  • the present invention uses polyvinylidene fluoride nanofibers/silver nanowires as piezoelectric materials and polydimethylsiloxane/nanographite as triboelectric materials, and effectively improves the energy conversion output power by optimizing the respective ratios.
  • the optimized composite material to the textile-based design of the spiral spacer structure to further improve the energy conversion efficiency, combined with the design and optimization of the integrated circuit, to build an ultra-light flexible self-driving wearable sensing system.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Textile Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Nonwoven Fabrics (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Abstract

La présente invention concerne un générateur hybride flexible, son procédé de préparation et son utilisation, ainsi qu'un dispositif autochargeable flexible. Le générateur hybride flexible comprend une couche d'électrode supérieure, une couche d'électrode inférieure, et de multiples fibres de génération d'énergie dont une extrémité est connectée à la couche d'électrode supérieure et l'autre extrémité est connectée à la couche d'électrode inférieure, les fibres de génération d'énergie comprenant des fibres de génération d'énergie piézoélectrique et des fibres de génération d'énergie par frottement, les fibres de génération d'énergie piézoélectrique étant des fibres composites de nanofibres de fluorure de polyvinylidène/nanofils d'argent, et les fibres de génération d'énergie par frottement étant des fibres composites de polydiméthylsiloxane/nanographite. Les nanofibres de fluorure de polyvinylidène/nanofils d'argent de la présente invention sont utilisés pour fabriquer un générateur piézoélectrique, et le polydiméthylsiloxane/nanographite est utilisé pour fabriquer un générateur de frottement, de manière à obtenir un générateur hybride piézoélectrique à frottement, qui peut considérablement améliorer la puissance de sortie.
PCT/CN2020/103926 2020-05-28 2020-07-24 Générateur hybride flexible, son procédé de préparation et son utilisation, et dispositif autochargeable flexible WO2021237908A1 (fr)

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CN114770571A (zh) * 2022-04-01 2022-07-22 苏州大学 气动反馈机械手
CN115919276A (zh) * 2022-06-23 2023-04-07 长三角(嘉兴)纳米应用技术研究院 一种基于摩擦纳米发电的心率监测设备及其方法
WO2023111603A1 (fr) * 2021-12-14 2023-06-22 Elias Siores Convertisseur pour alimentation de dispositifs médicaux

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CN113791124A (zh) * 2021-05-20 2021-12-14 中国石油大学(华东) 一种风力摩擦纳米发电机驱动的no2气体监测系统及其制备方法及应用
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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103490005A (zh) * 2013-08-27 2014-01-01 中北大学 基于压电-摩擦效应的高电学性能纳米发电机的制备方法
KR20160024643A (ko) * 2014-08-26 2016-03-07 연세대학교 산학협력단 마찰전기에너지 수확 증대구조를 포함하는 직물형 마찰전력 자가발전장치 및 이를 구비하는 직물 제품
CN106787945A (zh) * 2017-02-27 2017-05-31 重庆大学 一种压电‑摩擦电复合式宽频带微型能量收集器
CN206323310U (zh) * 2016-11-11 2017-07-11 纳智源科技（唐山）有限责任公司 压电和摩擦电混合发电机
CN107994803A (zh) * 2017-12-25 2018-05-04 内蒙古科技大学 一种压电摩擦电混合可穿戴纳米发电机及制备方法
CN110078976A (zh) * 2019-05-08 2019-08-02 齐鲁工业大学 一种压电传感材料的制备方法及制备的材料

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103490005A (zh) * 2013-08-27 2014-01-01 中北大学 基于压电-摩擦效应的高电学性能纳米发电机的制备方法
KR20160024643A (ko) * 2014-08-26 2016-03-07 연세대학교 산학협력단 마찰전기에너지 수확 증대구조를 포함하는 직물형 마찰전력 자가발전장치 및 이를 구비하는 직물 제품
CN206323310U (zh) * 2016-11-11 2017-07-11 纳智源科技（唐山）有限责任公司 压电和摩擦电混合发电机
CN106787945A (zh) * 2017-02-27 2017-05-31 重庆大学 一种压电‑摩擦电复合式宽频带微型能量收集器
CN107994803A (zh) * 2017-12-25 2018-05-04 内蒙古科技大学 一种压电摩擦电混合可穿戴纳米发电机及制备方法
CN110078976A (zh) * 2019-05-08 2019-08-02 齐鲁工业大学 一种压电传感材料的制备方法及制备的材料

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CN114738166B (zh) * 2022-04-11 2024-04-02 大连海事大学 一种基于摩擦纳米发电的循环水余压发电系统
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