CN107959438A - A kind of flexible extensible power generator based on triboelectrification - Google Patents

A kind of flexible extensible power generator based on triboelectrification Download PDF

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Publication number
CN107959438A
CN107959438A CN201711463438.3A CN201711463438A CN107959438A CN 107959438 A CN107959438 A CN 107959438A CN 201711463438 A CN201711463438 A CN 201711463438A CN 107959438 A CN107959438 A CN 107959438A
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layer
assembling
power generator
rubbing surface
electrode
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CN107959438B (en
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李福山
徐中炜
刘洋
郑聪秀
胡海龙
郭太良
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Fuzhou University
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Fuzhou University
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    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02NELECTRIC MACHINES NOT OTHERWISE PROVIDED FOR
    • H02N1/00Electrostatic generators or motors using a solid moving electrostatic charge carrier
    • H02N1/04Friction generators

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  • Battery Electrode And Active Subsutance (AREA)

Abstract

The present invention relates to a kind of flexible extensible power generator based on triboelectrification, frictional layer, first electrode filled layer, second electrode filled layer, the first assembling layer and the second assembling layer;Recess channel is offered on the inside of first assembling layer and the second assembling layer;First electrode filled layer is filled in the corresponding recess channel of the first assembling layer, and forms the first contact rubbing surface;Second electrode filled layer is filled in the corresponding recess channel of the second assembling layer, and forms the second contact rubbing surface;Frictional layer is arranged between the first contact rubbing surface and the second contact rubbing surface.A kind of flexible extensible power generator based on triboelectrification proposed by the invention, by collecting motor message during exercise and producing electric current, charge function and mechanical movement monitoring can be provided for wearable device battery, and there is good translucency, water proofing property and biocompatibility.For electronic skin development and the specific important meaning of wearable device industry.

Description

A kind of flexible extensible power generator based on triboelectrification
Technical field
The present invention relates to a kind of flexible extensible power generator based on triboelectrification.
Background technology
Wearable device is directly worn, or is incorporated into the clothes of user or a kind of portable set of accessory. Wearable device is not only a kind of hardware device, even more strong to realize by software support and data interaction, high in the clouds interaction Big function, life that wearable device will be to us, perceive and bring very big transformation.Wearable device possesses more and human body Behavior is interactive, monitors, assists, the function of enhancing expansion function of human body.Such equipment needs certain calculating transmittability With interaction detection ability, such as Human Physiology can be detected change and analyze and be transmitted in exercisable terminal.Will be so multiple It is highly difficult that miscellaneous component, which makes all satisfactory product of quality, performance, material,.Wherein, very important is exactly to produce The cruising ability of product, the big product of power consumption, the product of carrying big battery are necessarily not suitable for wearable device;Needs with Portability The product of frequent charge, user experience are just difficult to be lifted.Such product usually needs small integrated, functional intellectualization , wireless mobile and self-drivenization.
Machinery can produce multi-signal during exercise, catch these signals carry out processing can allow machinery produce tactile. And most straightforward approach is exactly that the electronic skin of mechanical surface is attached to simple structure.Electronic skin can be processed into various Shape, can adhere to equipment surface again as clothes, and machinery can be allowed to perceive the place, orientation and environmental information of object, with And the size of equipment active force.Same this can apply to human body, sense human motion physiological change, feed back to terminal give it is strong The report of health situation.Such product is necessarily flexible, can stretching, durable, environmental-friendly and adapts to a variety of environment.
Current electric energy used in everyday is typically by electromagnetic generator(EMG)It is produced, passed through by mechanical energy in magnetic field Coil produce displacement current, transformed to by a series of up in our current equipment.Because electromagnetic generator volume is big, It is of high cost, although can not possibly portable use with high availability.
The content of the invention
It is an object of the invention to provide a kind of flexible extensible power generator based on triboelectrification, to overcome existing skill Defect present in art.
To achieve the above object, the technical scheme is that:A kind of flexible extensible power generation dress based on triboelectrification Put, including:Frictional layer, first electrode filled layer, second electrode filled layer, the first assembling layer and the second assembling layer;Described Recess channel is offered on the inside of one assembling layer and the second assembling layer;The first electrode filled layer is filled in described In the corresponding recess channel of one assembling layer, and form the first contact rubbing surface;The second electrode filled layer is filled in described In the corresponding recess channel of two assembling layers, and form the second contact rubbing surface;The frictional layer is arranged at first contact and rubs Between wiping face and the second contact rubbing surface.
In an embodiment of the present invention, the frictional layer is loose structure dimethyl silicone polymer, with below 10um Pore space structure, including the non-conductive impurity of liquid PDMS, inertia and NaCl particles, and thickness is 10um to 1mm.
In an embodiment of the present invention, the non-conductive impurity of the inertia is the polyethylene ball of below radius 10um.
In an embodiment of the present invention, the first electrode filled layer and the second electrode filled layer are nano silver wire AgNWs, thickness are 100nm to 5um.
In an embodiment of the present invention, the first assembling layer and the second assembling layer are dimethyl silicone polymer, Its recess channel depth is more than or equal to 1um.
In an embodiment of the present invention, prepare in accordance with the following steps:
Step S1:Substrate is selected, and cleans substrate surface;
Step S2:Photoresist is selected, photoresist is applied on surface by doctor knife coater sol evenning machine, and by mask plate exposure imaging, Thickness is formed in 10um between 100nm, spacing the interval of 10um to 1mm barrier, barrier width 10um to 1mm it Between;
Step S3:Over the substrate by applying dimethyl silicone polymer, cure at a temperature of 150 °, peeling liner bottom, formed Possess the first assembling layer or the second assembling layer of recess channel;
Step S4:By the described first assembling layer or the second assembling layer, the hydrophilic place of plasma of progress 10min in the environment of oxygen After reason, described first assembling layer or second assembling layer surface apply nano silver wire AgNWs, thickness 100nm to 5um it Between, form the first electrode filled layer or second electrode filled layer;
Step S5:Gather in the corresponding contact rubbing surface coating loose structure of the first electrode filled layer or second electrode filled layer Dimethyl siloxane, thickness, between 1mm, form frictional layer in 10um;
Step S6:It will be spliced through the structure that the step S4 is obtained with the structure obtained through the step S5, and through first Electrode filled layer and second electrode filled layer are encapsulated from extraction electrode.
In an embodiment of the present invention, the substrate uses silicon.
In an embodiment of the present invention, in the step S4, the loose structure dimethyl silicone polymer is by by liquid State PDMS add NaCl particles after, be uniformly mixed with radius less than 10um polyethylene balls, and it is cured after, cleaned by ultra-pure water Obtain.
In an embodiment of the present invention, under the effect of external force, soft stretch power generator, is distorted, deformation, prolongs Exhibition and compression, the electrode filled layer contact rubbing surface through described first respectively with second electrode filled layer and are contacted with second Rubbing surface mutually rubs with the frictional layer, and contacting rubbing surface with second in the described first contact rubbing surface forms opposite electric charge, Charge inducing reaches balance by external electrode and outer load circuit;Sensed electric charge is produced by the outer load circuit Pulse current is collected, and completes power generation.
Compared to the prior art, the invention has the advantages that:One kind proposed by the invention is based on triboelectrification Flexible extensible power generator, by collecting motor message during exercise and producing electric current, can be provided for wearable device battery Charge function and mechanical movement monitoring, and there is good translucency, water proofing property and biocompatibility.It is waterproof and dampproof, have Self-driven property, it can be that equipment is powered to coordinate external circuitry, for electronic skin development and the specific important meaning of wearable device industry Justice.
Brief description of the drawings
Fig. 1 is the structure chart of the flexible extensible power generator based on triboelectrification in the present invention.
Fig. 2 is the structure chart of substrate and barrier in one embodiment of the invention.
Fig. 3 is the structure chart that the polydimethylsiloxane for having irrigation canals and ditches is made in one embodiment of the invention.
Fig. 4 is coated with nano silver wire AgNWs and loose structure dimethyl silicone polymer in one embodiment of the invention Structure chart.
Embodiment
Below in conjunction with the accompanying drawings, technical scheme is specifically described.
Nano generator is sent a telegraph in friction(TENG)Compared than other technologies produced electricl energy, be more prone to collect random energy Amount.Friction sends a telegraph nano generator and is combined with triboelectrification and electrostatic induction technology, it has high efficiency, low weight, low damage The characteristics of consumption, it is important that this technology can collect the energy of nature generation, including energy caused by human motion.It is logical Two kinds of dielectric materials often are used, after physical contact, are shifted in respective surface electronic, produced by partial charge imbalance Charge inducing be balanced by the conductor after dielectric layer in outer current loop, and this process just changes into mechanical energy Electric energy.
For the trend of the development of electronic industry instantly, the present invention proposes a kind of flexible extensible power generation based on frictional electricity Device.Energy produced by the device can realize collection human body friction of motion using above material and mechanism.Adopted by the device The energy integrated can provide electric energy support and data analysis as wearable device.
Further, the flexible extensible power generator based on triboelectrification is somebody's turn to do, including:Frictional layer, first electrode filling Layer, second electrode filled layer, the first assembling layer and the second assembling layer;Opened up on the inside of first assembling layer and the second assembling layer Fluted raceway groove;First electrode filled layer is filled in the corresponding recess channel of the first assembling layer, and forms the first contact friction Face;Second electrode filled layer is filled in the corresponding recess channel of the second assembling layer, and forms the second contact rubbing surface;Frictional layer It is arranged between the first contact rubbing surface and the second contact rubbing surface.
Further, in the present embodiment, frictional layer is loose structure dimethyl silicone polymer, has the hole of below 10um Hole structure, including the non-conductive impurity of liquid PDMS, inertia and NaCl particles, and thickness is 10um to 1mm, preferably, thickness It is to be most suitable for stripping in production.The non-conductive impurity of inertia is the polyethylene ball of below radius 10um.
Further, in the present embodiment, first electrode filled layer and second electrode filled layer are nano silver wire AgNWs, thickness is 100nm to 5um, preferably, AgNWs average thickness is 1um.
Further, in the present embodiment, the first assembling layer and the second assembling layer are dimethyl silicone polymer, and thickness is 1um to 1mm, its recess channel depth are more than or equal to 1um, preferably, thickness is 500um.
Further, in the present embodiment, dimethyl silicone polymer(polydimethylsiloxane-PDMS), it is one Kind the macromolecule organic silicon compound.With optical clear, and under normal circumstances, it is considered to be inertia, it is nontoxic, it is nonflammable.Especially Its hydrophobic waterproof of dimethyl siloxane in the solid state, colourless nontoxic, cost is extremely low, and biocompatibility is good, easily and various material Room temperature engages and because structure high resiliency caused by low Young's modulus.
Further, in the present embodiment, as shown in Figure 1, the first assembling layer or the second assembling layer use stretchable outsourcing The polydimethylsiloxane 101 covered, its inside has broached-tooth design or recess channel, and is used as container.First electrode is filled out Fill layer or second electrode filled layer is used coated in the nano silver wire AgNWs102 on broached-tooth design, be close to PDMS101, have Roughness, rises and falls in more than 1um.Broached-tooth design or recess channel provide stretching for inside stuffing nano silver wire AgNWs102 Ability and the effect of frictional contact surface increase.Frictional layer uses loose structure dimethyl silicone polymer 103.
Further, in the present embodiment, prepare in accordance with the following steps:
Step S1:Appropriately sized substrate 202 is selected, it is preferred that substrate uses silicon, and cleans substrate surface;
Step S2:As shown in Fig. 2, selection photoresist, applies photoresist, and pass through mask plate by doctor knife coater sol evenning machine on surface Exposure imaging, forms thickness in 10um between 100nm, preferably, transfer thickness is 500um;Spacing is in 10um between 1mm Every barrier 201, preferably, spacing is 100um in production;Barrier width in 10um between 1mm, preferably, producing Middle width is 100um;
Step S3:As shown in figure 3, on the substrate 202 by applying dimethyl silicone polymer, cure at a temperature of 150 °, peel off Substrate, forms the PDMS structures 301 for possessing recess channel, to be used as the first assembling layer or the second assembling layer;
Step S4:As shown in figure 3, possesses groove ditch after the plasma hydrophilic treated for 10min being carried out in the environment of oxygen The PDMS structures 403 in road, apply nano silver wire AgNWs402 on its surface, thickness in 100nm between 5um, preferably, in life Thickness is 1um in production, forms first electrode filled layer or second electrode filled layer;
Step S5:In the corresponding contact rubbing surface coating poly- diformazan of loose structure of first electrode filled layer or second electrode filled layer Radical siloxane 401, thickness, between 1mm, form frictional layer, preferably, thickness is 500um in production in 10um;
Step S6:As shown in figure 4, will be spliced through the structure that step S4 is obtained with the structure obtained through step S5, also will The structure that electrode frictional layer is formed after coated nano silver wire AgNWs is rubbed with being formed after coating loose structure dimethyl silicone polymer The structures to form of layer is wiped, and is encapsulated through first electrode filled layer and second electrode filled layer from extraction electrode.
Further, in the present embodiment, in step s 4, loose structure dimethyl silicone polymer is by by liquid PDMS Add NaCl particles after, be uniformly mixed with radius less than 10um polyethylene balls, and it is cured after, pass through ultra-pure water cleaning acquisition.
Further, in the present embodiment, under the effect of external force, soft stretch power generator, is distorted, shape Become, extend and compression, first electrode filled layer, which with second electrode filled layer contacts rubbing surface through first respectively and contacted with second, to rub Wiping face mutually rubs with frictional layer, and contacting rubbing surface with second in the first contact rubbing surface forms opposite electric charge, and charge inducing leads to Cross external electrode and reach balance with outer load circuit;The pulse current for being produced sensed electric charge by outer load circuit is collected, Complete power generation.Say that the current pulse signal of generation certainly exists difference in frequency and intensity under different motion state, can make For self-driven motion detector, situation about being moved for analysis.
Above is presently preferred embodiments of the present invention, all changes made according to technical solution of the present invention, caused function are made During with scope without departing from technical solution of the present invention, protection scope of the present invention is belonged to.

Claims (9)

  1. A kind of 1. flexible extensible power generator based on triboelectrification, it is characterised in that including:Frictional layer, first electrode are filled out Fill layer, second electrode filled layer, the first assembling layer and the second assembling layer;The first assembling layer and the second assembling layer Inner side offer recess channel;The first electrode filled layer is filled in the corresponding recess channel of the first assembling layer, And form the first contact rubbing surface;The second electrode filled layer is filled in the corresponding recess channel of the second assembling layer, And form the second contact rubbing surface;The frictional layer is arranged at the first contact rubbing surface and the second contact rubbing surface Between.
  2. 2. a kind of flexible extensible power generator based on triboelectrification according to claim 1, it is characterised in that described Frictional layer is loose structure dimethyl silicone polymer, and the pore space structure with below 10um, including liquid PDMS, inertia are non-conductive Impurity and NaCl particles, and thickness is 10um to 1mm.
  3. 3. a kind of flexible extensible power generator based on triboelectrification according to claim 2, it is characterised in that described The non-conductive impurity of inertia is the polyethylene ball of below radius 10um.
  4. 4. a kind of flexible extensible power generator based on triboelectrification according to claim 1, it is characterised in that described First electrode filled layer and the second electrode filled layer are nano silver wire AgNWs, and thickness is 100nm to 5um.
  5. 5. a kind of flexible extensible power generator based on triboelectrification according to claim 1, it is characterised in that described First assembling layer and the second assembling layer are dimethyl silicone polymer, its recess channel depth is more than or equal to 1um.
  6. 6. a kind of flexible extensible power generator based on triboelectrification according to claim 1, it is characterised in that it is special Sign is, prepares in accordance with the following steps:
    Step S1:Substrate is selected, and cleans substrate surface;
    Step S2:Photoresist is selected, photoresist is applied on surface by doctor knife coater sol evenning machine, and by mask plate exposure imaging, Thickness is formed in 10um between 100nm, spacing the interval of 10um to 1mm barrier, barrier width 10um to 1mm it Between;
    Step S3:Over the substrate by applying dimethyl silicone polymer, cure at a temperature of 150 °, peeling liner bottom, formed Possess the first assembling layer or the second assembling layer of recess channel;
    Step S4:By the described first assembling layer or the second assembling layer, the hydrophilic place of plasma of progress 10min in the environment of oxygen After reason, described first assembling layer or second assembling layer surface apply nano silver wire AgNWs, thickness 100nm to 5um it Between, form the first electrode filled layer or second electrode filled layer;
    Step S5:Gather in the corresponding contact rubbing surface coating loose structure of the first electrode filled layer or second electrode filled layer Dimethyl siloxane, thickness, between 1mm, form frictional layer in 10um;
    Step S6:It will be spliced through the structure that the step S4 is obtained with the structure obtained through the step S5, and through first Electrode filled layer and second electrode filled layer are encapsulated from extraction electrode.
  7. 7. a kind of flexible extensible power generator based on triboelectrification according to claim 6, it is characterised in that described Substrate uses silicon.
  8. 8. a kind of flexible extensible power generator based on triboelectrification according to claim 6, it is characterised in that in institute State in step S4, after the loose structure dimethyl silicone polymer by liquid PDMS by adding NaCl particles, be less than with radius 10um polyethylene balls are uniformly mixed, and it is cured after, pass through ultra-pure water cleaning obtain.
  9. 9. a kind of flexible extensible power generator based on triboelectrification according to claim 1, it is characterised in that it is special Sign is, under the effect of external force, the soft stretch power generator, be distorted, deformation, extension and compression, the first electricity Pole filled layer contacts rubbing surface through described first respectively with second electrode filled layer and contacts rubbing surface and the frictional layer with second Mutually rub, contacting rubbing surface with second in the described first contact rubbing surface forms opposite electric charge, and charge inducing passes through external electricity Pole reaches balance with outer load circuit;The pulse current for being produced sensed electric charge by the outer load circuit is collected, and is completed Power generation.
CN201711463438.3A 2017-12-28 2017-12-28 Flexible stretchable power generation device based on friction electrification Active CN107959438B (en)

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109039143A (en) * 2018-08-10 2018-12-18 青岛市资源化学与新材料研究中心 Telescopic solid-liquid nano friction generator
CN109167529A (en) * 2018-08-31 2019-01-08 内蒙古科技大学 A kind of nano generator mimetic bio-membrane layer and preparation method thereof
CN111313741A (en) * 2019-01-29 2020-06-19 北京纳米能源与系统研究所 Power generation facility of electricity generation can stretch
CN111510015A (en) * 2020-03-23 2020-08-07 华东师范大学 Friction nano generator with friction layer double-sided microstructure and preparation method thereof
CN111840597A (en) * 2020-06-12 2020-10-30 福州大学 Sterilization method of self-driven deep ultraviolet sterilization material
CN112187093A (en) * 2020-09-28 2021-01-05 北京理工大学重庆创新中心 Power generation facility based on equestrian motion

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CN104340950A (en) * 2013-07-24 2015-02-11 纳米新能源(唐山)有限责任公司 Preparing method of film having micro-nano structure and frictional electric generator adopting the film
CN104348379A (en) * 2013-07-24 2015-02-11 纳米新能源(唐山)有限责任公司 Metal line composite material friction generator and manufacture method thereof
KR20160094647A (en) * 2015-02-02 2016-08-10 한국생산기술연구원 Wearable band using friction electrical energy and friction electrical energy generator
CN106653156A (en) * 2016-07-25 2017-05-10 北京纳米能源与系统研究所 Conductive cloth manufacturing method, friction generator, capacitor and intelligent clothes

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104340950A (en) * 2013-07-24 2015-02-11 纳米新能源(唐山)有限责任公司 Preparing method of film having micro-nano structure and frictional electric generator adopting the film
CN104348379A (en) * 2013-07-24 2015-02-11 纳米新能源(唐山)有限责任公司 Metal line composite material friction generator and manufacture method thereof
KR20160094647A (en) * 2015-02-02 2016-08-10 한국생산기술연구원 Wearable band using friction electrical energy and friction electrical energy generator
CN106653156A (en) * 2016-07-25 2017-05-10 北京纳米能源与系统研究所 Conductive cloth manufacturing method, friction generator, capacitor and intelligent clothes

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109039143A (en) * 2018-08-10 2018-12-18 青岛市资源化学与新材料研究中心 Telescopic solid-liquid nano friction generator
CN109039143B (en) * 2018-08-10 2019-10-29 青岛市资源化学与新材料研究中心 Telescopic solid-liquid nano friction generator
CN109167529A (en) * 2018-08-31 2019-01-08 内蒙古科技大学 A kind of nano generator mimetic bio-membrane layer and preparation method thereof
CN111313741A (en) * 2019-01-29 2020-06-19 北京纳米能源与系统研究所 Power generation facility of electricity generation can stretch
CN111510015A (en) * 2020-03-23 2020-08-07 华东师范大学 Friction nano generator with friction layer double-sided microstructure and preparation method thereof
CN111510015B (en) * 2020-03-23 2023-07-25 华东师范大学 Friction nano generator with friction layer double-sided microstructure and preparation method thereof
CN111840597A (en) * 2020-06-12 2020-10-30 福州大学 Sterilization method of self-driven deep ultraviolet sterilization material
CN112187093A (en) * 2020-09-28 2021-01-05 北京理工大学重庆创新中心 Power generation facility based on equestrian motion

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