CN107134943B - A kind of stretchable self-contained electric system, preparation method and wearable device - Google Patents
A kind of stretchable self-contained electric system, preparation method and wearable device Download PDFInfo
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- CN107134943B CN107134943B CN201710405510.0A CN201710405510A CN107134943B CN 107134943 B CN107134943 B CN 107134943B CN 201710405510 A CN201710405510 A CN 201710405510A CN 107134943 B CN107134943 B CN 107134943B
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- stretchable
- carbon paper
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/13—Energy storage using capacitors
Abstract
The present invention provides a kind of stretchable self-contained electric systems based on foldable carbon paper, comprising: stretchable friction nanometer power generator comprising silicon rubber and the first carbon paper electrode, first carbon paper electrode are arranged to be sealed in the silicon rubber；Stretchable supercapacitor, it is arranged to be sealed in the silicon rubber, and it is spaced apart setting with first carbon paper, it is configured to deform under extraneous drawing force, folding force and/or torsion, and substantially restore to the original state when the drawing force, folding force and/or torsion disappear；And rectifier bridge, for converting DC signal for the ac signal of the stretchable friction nanometer power generator output, and the DC signal is exported to the stretchable solid-state super capacitor.Friction nanometer power generator and supercapacitor are packaged into an entirety, can not only greatly reduce the size of device, additionally it is possible to can and collect the performance for the electric energy that friction nanometer power generator issues with extraordinary tensility.
Description
Technical field
The present invention relates to flexible electronic device field, more particularly to a kind of stretchable self-contained electric system, preparation method and
Wearable device.
Background technique
With the progress of society and the improvement of people's living standards, flexible electronic device and the wearable product of intelligence receive
More and more concerns.Artificial electron's skin, flexible touch display screen, smartwatch, health and motion monitoring product etc. occur
In the work and life of people.These flexible electronic devices need matched battery and can work normally, and current
Battery does not have self-charging function not only, but also cruise duration is short, and which greatly limits the practical application of flexible electronic device effects
Fruit.
Widest application is to combine photovoltaic solar cell module and supercapacitor or lithium ion battery etc. at present,
So that the storage equipment of energy collecting device and high-energy is directly integrated and is applied in wearable electronic system.However, solar energy
The operating condition of battery depends on the weather situation and the extraneous factors such as day alternates with night, therefore, solar battery long lasting for
Power supply aspect has significant limitation.
The birth of friction nanometer power generator provides effective solution approach for these problems.It is not advised by collecting human body
It then moves the mechanical energy of generation and is translated into electric energy, may be implemented to energize whenever and wherever possible for flexible electronic device.It is existing
Flexible friction nano generator for powering for flexible electronic device for example may include following several: with flexible aluminium foil and
PDMS film constructs arcuate contact separate type friction nanometer power generator；Use the PET film for being coated with ITO electrode as substrate, fep film is placed on
Top layer contacts as friction material with exterior object；A kind of ultra-thin rollable paper of contact separation formula is constituted with blank sheet of paper and PTFE
Base friction nanometer power generator etc..But these devices can only meet the flexibility in two-dimensional surface, be difficult suitable for wearable system.
Most frequent position is arthrogryposis, the rotation of flexible and waist etc. in physical activity, therefore, probes into out a kind of drawing
The stretchable friction nanometer power generator of the better performances such as stretching, bend, distorting has very important significance.However, physical activity
In the movement at most frequent position be irregular, so the output for being converted into friction nanometer power generator is also unstable peak value
The output of exchange can not directly be powered for flexible electronic device, rub therefore, it is also desirable to can convert and store in conjunction with one kind
The energy storage device of the electric energy of nano generator is wiped, the system for forming power generation and energy storage integrated.
Summary of the invention
It was found by the inventors of the present invention that flexible electronic device such as wearable electronic may be in the state of water
And the state being bent, and in existing flexible automatic power system, it is that can not be in have water before not being packaged
State.And in automatic power system, even if there are supercapacitor flexible, be also can not waterproof, and
Deformability is poor.
The purpose of the present invention is meet the power demands now for portable wearable electronic.In order to meet now
The demand of society, such as the portable of flexible integration as wearable display, electronic skin and distributing sensor are worn
Wear equipment fast development.So the power supply of these equipment also needs to meet flexible, wearable, light etc. require.
A further object of the invention is to provide for a kind of washable, deformable self-contained electric system, to realize
The popularization and application of flexible electronic device.
The present invention provides a kind of stretchable self-contained electric systems based on foldable carbon paper, comprising:
Stretchable friction nanometer power generator comprising silicon rubber and the first carbon paper electrode, the first carbon paper electrode setting
At being sealed in the silicon rubber；
Stretchable supercapacitor is arranged to be sealed in the silicon rubber, and is spaced apart with first carbon paper
Setting is configured to deform under extraneous drawing force, folding force and/or torsion, and in the drawing force, bending
Power and/or torsion substantially restore to the original state when disappearing；With
Rectifier bridge, for converting direct current telecommunications for the ac signal of the stretchable friction nanometer power generator output
Number, and the DC signal is exported to the stretchable solid-state super capacitor.
Further, first carbon paper electrode is configured to folding, so that first carbon paper electrode is second
Preset direction has tensility.
Further, first carbon paper electrode is folding is configured to sawtooth pattern, city wall type or sinusoidal.
Further, the quantity of the stretchable supercapacitor is multiple, the multiple stretchable supercapacitor string
Connection connection.
Further, each stretchable supercapacitor is configured to folding, so that the stretchable super capacitor
Device has tensility in the first preset direction；
Wherein, the stretchable supercapacitor of multiple series connections is configured to sawtooth pattern, city wall type or sinusoidal.
Further, the stretchable supercapacitor includes:
Two layers of second carbon paper electrodes, second carbon paper electrode are constructed to be permeable to be folded along a fold line；
Solid electrolyte is applied separately at the surface of two layers of second carbon paper electrodes；With
Diaphragm is arranged between two layers of second carbon paper electrodes for being applied with the solid electrolyte, the diaphragm construction
At can be folded along the fold line.
Further, the number that the stretchable supercapacitor is adjusted according to extraneous motion frequency, so that described
The electric signal size that the equivalent capacity of stretchable supercapacitor is exported with stretchable friction nanometer power generator matches.
Particularly, the present invention also provides a kind of preparation method of stretchable self-contained electric system based on foldable carbon paper,
Include the following steps:
The preparation step of first carbon paper electrode: the first carbon paper electrode is folded according to predetermined pattern；
The preparation step of stretchable supercapacitor: two layers of second carbon paper electrodes are provided, respectively in two layers of second carbon
Apply solid electrolyte at the surface of paper electrode, one layer of diaphragm is arranged in two layers of second carbon for being applied with the solid electrolyte
Between paper electrode, the diaphragm is pressed and is dried with two layers of second carbon paper electrodes for being applied with the solid electrolyte,
Stretchable supercapacitor is prepared；
Sealing step: the first carbon paper electrode folded and the stretchable supercapacitor are sealed in silicon rubber,
Wherein, first carbon paper electrode and the silicon rubber constitute stretchable friction nanometer power generator；
Electrical connecting step: the stretchable friction nanometer power generator and the stretchable supercapacitor are passed through into rectifier bridge
It is attached, converts DC signal for the ac signal of the stretchable friction nanometer power generator output, and by institute
DC signal is stated to export to the stretchable solid-state super capacitor.
Further, first carbon paper electrode is configured to folding, so that first carbon paper electrode is second
Preset direction has tensility；
Wherein, the stretchable supercapacitor is configured to folding, so that the stretchable supercapacitor exists
First preset direction has tensility.
Particularly, the present invention also provides a kind of wearable electronic, the wearable electronic can from above-mentioned
It stretches self-contained electric system and obtains electricity.
The solution of the present invention, inventor overcome technology habit, and supercapacitor is not used as an individual device
The outside of friction nanometer power generator is set, but is sealed in the inside of friction nanometer power generator.Also, present invention
People has found to be packaged the first carbon paper electrode and supercapacitor using silicon rubber in a creative way, while solving the prior art
Most problem existing for middle self-charging system.Friction nanometer power generator and supercapacitor are packaged into an entirety,
The size of device can not only greatly be reduced, additionally it is possible to which there is extraordinary tensility can and collect friction nanometer power generator hair
The performance of electric energy out.
Further, silicon rubber serves not only as the frictional layer of friction nanometer power generator, also as friction nanometer power generator and
The sealing element of supercapacitor, enable the self-charging system with tensility while have waterproof performance.In addition, silicon rubber
Glue, the first carbon paper electrode and supercapacitor all have certain deformability, so that the self-charging system has centainly on the whole
Deformability is able to bear extraneous stretching, bending, distortion and crimp force.
Further, according to the solution of the present invention, due to being sent out using silicon rubber, carbon paper electrode etc. as composition friction nanometer
The components of motor and supercapacitor, these raw materials are cheap and easily-available, so that cost is relatively low for the self-charging system.
According to the following detailed description of specific embodiments of the present invention in conjunction with the accompanying drawings, those skilled in the art will be brighter
The above and other objects, advantages and features of the present invention.
Detailed description of the invention
Some specific embodiments of the present invention is described in detail by way of example and not limitation with reference to the accompanying drawings hereinafter.
Identical appended drawing reference denotes same or similar part or part in attached drawing.It should be appreciated by those skilled in the art that these
What attached drawing was not necessarily drawn to scale.In attached drawing:
Fig. 1 is the schematic of the stretchable self-contained electric system according to an embodiment of the invention based on foldable carbon paper
View；
Fig. 2 is the preparation method of the stretchable self-contained electric system according to an embodiment of the invention based on foldable carbon paper
Schematic flow chart；
Fig. 3 is the open-circuit voltage of stretchable self-contained electric system according to an embodiment of the invention at different frequencies
(Voc), the output of short circuit current (Isc) and short-circuit electricity (Qsc)；
Fig. 4 is the average output power of stretchable self-contained electric system according to an embodiment of the invention at different frequencies
Density (σ tr)；
Fig. 5 is stretchable self-contained electric system according to an embodiment of the invention in stretching, bending, distortion and curly
Open-circuit voltage (Voc) under state, short circuit current (Isc) and transfer charge amount (Qsc)；
Fig. 6 is open-circuit voltage (Voc) of the stretchable self-contained electric system according to an embodiment of the invention before and after washing,
Short circuit current (Isc) and transfer charge amount (Qsc)；
Fig. 7 is stretchable supercapacitor according to an embodiment of the invention in different scanning rates (20~100mV/
S) the cyclic voltammetry scan performance diagram under；
Fig. 8 is stretchable supercapacitor according to an embodiment of the invention at different electric currents (50~200 μ A)
Constant current charge-discharge curve graph；
Fig. 9 is the mechanical energy under stretchable self-contained electric system collection 5Hz frequency according to an embodiment of the invention and storage
The charge graph deposited, and the discharge curve using the system drive electronic watch；
Figure 10 is the working circuit diagram of stretchable self-contained electric system according to an embodiment of the invention.
Specific embodiment
Fig. 1 shows the stretchable self-contained electric system 100 according to an embodiment of the invention based on foldable carbon paper
Perspective schematic view.As shown in Figure 1, the stretchable self-contained electric system 100 may include stretchable friction nanometer power generator 110,
130 (not shown) of stretchable supercapacitor 120 and rectifier bridge.The stretchable friction nanometer power generator 110 is used for will be outer
Portion's mechanical energy is converted into electric energy, and the stretchable supercapacitor 120 is for issuing the stretchable friction nanometer power generator 110
Electric energy stored, the rectifier bridge 130 is for converting the ac signal that stretchable friction nanometer power generator 110 exports to
DC signal, and the DC signal is exported to stretchable solid-state super capacitor.
As shown in Figure 1, the stretchable friction nanometer power generator 110 may include silicon rubber 20 and the first carbon paper electrode 10.
Wherein, the first carbon paper electrode 10 is sealed in the silicon rubber 20, such as be can be and be cast in the silicon rubber 20.This first
Carbon paper electrode 10, which can be, to be coated on A4 paper 1 and is obtained using pencil, is also possible to directly buy, therefore, first carbon paper
Electrode 10 is cheap and easily-available.The stretchable supercapacitor 120 is arranged to be sealed in the silicon rubber 20, and with first carbon paper
2 are spaced apart setting, are configured to deform under extraneous drawing force, folding force and/or torsion, and in the stretching
Power, folding force and/or torsion substantially restore to the original state when disappearing.
The working principle of the stretchable friction nanometer power generator 110 is: when external object is received with friction during the motion
Rice generator rubs, since silicon rubber 20 has the ability of stronger attraction electronics, so a part of electrons are from the external world
The surface of object is transferred to the surface of silicon rubber 20.And when external object is separated with friction nanometer power generator, this part electronics
It is left in the surface of silicon rubber 20, and due to the coupling of electrostatic induction, then can have been generated in the first carbon paper electrode 10
The positive charge of amount balances the electronics on 20 surface of silicon rubber.In the operating mode of single electrode, the first carbon paper electrode 10 is ground connection
, a potential difference can be so generated between the first carbon paper electrode 10 and the earth, drive free electron from the first carbon paper electrode
10 shift to the earth, while will provide the output signal of an instantaneous voltage and current.When the enrichment electronics on silicon rubber 20
When by induced positive complete neutralization in the first carbon paper electrode 10, there would not be electricity again between the first carbon paper electrode 10 and the earth
Lotus transfer, will not generate the output signal of voltage or electric current again at this time.When external object is again adjacent to friction nanometer power generator,
The electronics on 20 surface of silicon rubber gradually decreases, and the induced positive in the first carbon paper electrode 10 is also reduced accordingly, in order to balance
The change of potential difference, electronics are shifted from the earth to the first carbon paper electrode 10 again, provide a contrary instantaneous output signal.
It is so repeated continuously the movement of contact separation, friction nanometer power generator can then convert the mechanical energy that external object moves to
Electric energy.
In the embodiment shown in fig. 1, which is folding.It is with multiple along first carbon paper
The fold line that the length direction of electrode 10 is formed, the distance between two neighboring fold line are substantially equal, first carbon
Paper electrode 10 can be folded along multiple fold line so that its can have on the second preset direction it is certain can
Tensile property.The section of first carbon paper electrode 10 can be sawtooth pattern.In other embodiments, first carbon paper electrode 10
Section can be city wall type or sinusoidal.
The quantity of the stretchable supercapacitor 120 be it is multiple, can connect between multiple stretchable supercapacitors 120
Connection.It is, of course, understood that the quantity of the stretchable supercapacitor 120 can be according to the motion frequency of external object
It adjusts, so that the telecommunications of the equivalent capacity of stretchable supercapacitor 120 and the output of stretchable friction nanometer power generator 110
Number size matches.Each stretchable supercapacitor 120 be it is folding, have a fold line, this is stretchable super
Capacitor 120 can be folded along a foldable line, so that the stretchable supercapacitor 120 is default first
Direction has tensility.In other embodiments, which may include multiple fold lines, can
To be folded along multiple fold line.The stretchable supercapacitor 120 of multiple series connections can be configured to sawtooth pattern,
City wall type or sinusoidal.
The stretchable supercapacitor 120 may include two layers of second carbon paper electrodes 30, solid electrolyte and diaphragm 40.It should
Solid electrolyte can be PVA/KOH solid electrolyte, be applied separately at the surface of two layers of second carbon paper electrodes 30.It should
Diaphragm 40 can be conducting polypropylene diaphragm 40, be arranged in be applied with the solid electrolyte two layers of second carbon paper electrodes 30 it
Between.Two layers of second carbon paper electrodes 30, solid electrolyte and the diaphragm 40 are compacted and dry to form the stretchable supercapacitor
120.The stretchable supercapacitor 120 is configured to folding, i.e. second carbon paper electrode 30, solid electrolyte and diaphragm 40
It can be folded.
Fig. 2 shows the stretchable self-contained electric systems 100 according to an embodiment of the invention based on foldable carbon paper
The schematic flow chart of preparation method.As shown in Fig. 2, the preparation method may include steps of:
The preparation step of S100, the first carbon paper electrode 10: the first carbon paper electrode 10 is folded according to predetermined pattern；
The preparation step of S200, stretchable supercapacitor 120: provide two layers of second carbon paper electrodes 30, respectively this two
Apply solid electrolyte at the surface of the second carbon paper electrode 30 of layer, one layer of diaphragm 40 is arranged in and is applied with the solid electrolyte
Between two layers of second carbon paper electrodes 30, the diaphragm 40 and two layers of second carbon paper electrodes 30 for being applied with the solid electrolyte are carried out
It presses and dries, stretchable supercapacitor 120 is prepared；
S300, sealing step: the first carbon paper electrode 10 folded and the stretchable supercapacitor 120 are sealed in silicon
In rubber 20, wherein first carbon paper electrode 10 and the silicon rubber 20 constitute stretchable friction nanometer power generator 110；
S400, electrical connecting step: the stretchable friction nanometer power generator 110 and the stretchable supercapacitor 120 are led to
Over commutation bridge 130 is attached, and converts direct current for the ac signal that the stretchable friction nanometer power generator 110 exports
Signal, and the DC signal is exported and gives the stretchable solid-state super capacitor.
In the preparation step of the first carbon paper electrode 10, can with common picture pencil the two sides of an A4 paper 1 into
Row is equably smeared, and to obtain a carbon paper 2, is cut further according to the size of required carbon paper 2.It is folded on carbon paper 2
The spacing of multiple folding lines out, adjacent two fold lines in the multiple folding lines is equal.By carbon paper 2 along the multiple folding lines
It is folded, so that it be made to have stretchable performance in a certain direction, so obtains the first carbon paper electrode 10.
In the preparation step of stretchable supercapacitor 120, it can specifically include following steps:
S210, multiple carbon papers 2 are provided, which can be the carbon paper 2 acquired according to above-mentioned steps, and carbon paper 2 is cut
It is cut into the size of 15mm × 6mm, using as the second carbon paper electrode 30；
S220, PVA/KOH solid electrolyte is uniformly smeared in two the second carbon paper electrodes 30 sheared；
S230, a conducting polypropylene diaphragm 40 is provided, the size of the conducting polypropylene diaphragm 40 is 15mm × 6mm, and will
The diaphragm 40 is placed between two the second carbon paper electrodes 30 in step S220；
S240, it the obtained sample of step S230 is placed in special clamping plate is clamped, so that being applied with solid
Two the second carbon paper electrodes 30 and conducting polypropylene diaphragm 40 of electrolyte come into full contact with；
S250, the sample that step S240 is obtained is spontaneously dried to remove extra moisture, is obtained after a period of time wait set
The supercapacitor 50 of meter；
S260, the supercapacitor that step S250 is obtained is folded along a fold line, it is stretchable super to obtain
Capacitor 120.
In sealing step, the first carbon paper electrode 10 folded and the stretchable supercapacitor 120 are sealed in silicon
In rubber 20 specifically includes the following steps:
S310, mixing will be stirred according to the silicon rubber 20 and curing agent of 20:1 proportional arrangement；
S320, the mixture mixed using step S310 are to the first carbon paper electrode 10 and at least one stretchable super electricity
Container 120 is poured；
S330, etc. it is to be solidified, the first carbon paper electrode 10 and at least one stretchable supercapacitor 120 are sealed in this
In silicon rubber 20.
Wherein, in step s310, the ratio of silicon rubber 20 and curing agent can also for 10:1,40:1,60:1,80:1 or
100:1 etc., or any value in 10-100:1.In step s 320, the quantity of stretchable supercapacitor 120 can be with
It is configured, is connected in series between multiple stretchable supercapacitors 120 according to actual needs.
The present invention also provides a kind of wearable device, which obtains from above-mentioned stretchable self-contained electric system 100
Obtain electricity.It is understood that the present invention can also provide other flexible electronics such as smartwatch, health and motion monitoring product
Device, and electricity is obtained from above-mentioned stretchable self-contained electric system 100.
Fig. 3 shows the open-circuit voltage of the stretchable self-contained electric system 100 of one embodiment of the invention at different frequencies
(Voc), the output of short circuit current (Isc) and short-circuit electricity (Qsc).As shown in figure 3, external object motion frequency by
When 0.5Hz increases to 2.5Hz, the open-circuit voltage of stretchable self-contained electric system 100 is maintained at 330V or so, and transfer charge amount is kept
In 119nC, numerical value at different frequencies is almost the same.And short circuit current is in the trend incrementally increased with the increase of frequency,
Up to 18.57 μ A when maximum.
Fig. 4 shows stretchable self-contained electric system 100 according to an embodiment of the invention being averaged at different frequencies
Output power density (σ tr).As shown in figure 4, all there is 140 resistance value of load to match under each fixed frequency,
So that the average output power density (σ tr) for loading friction nanometer power generator under 140 resistance herein reaches maximum value.And this
Reduce with resistance value with the increase of friction nanometer power generator working frequency.When working frequency is 2.5Hz, the build-out resistor
Value is 1G Ω.
Fig. 5 show stretchable self-contained electric system 100 according to an embodiment of the invention stretching, bending, distortion with
And the open-circuit voltage (Voc) under rolled state, short circuit current (Isc) and transfer charge amount (Qsc).As can be known from Fig. 5, this hair
Bright stretchable self-contained electric system 100 has certain output in different deformation, this demonstrates of the invention draw
Stretch self-contained electric system 100 can in Various Complex collecting mechanical energy.
Fig. 6 shows open circuit electricity of the stretchable self-contained electric system 100 according to an embodiment of the invention before and after washing
It presses (Voc), short circuit current (Isc) and transfer charge amount (Qsc).As can be seen from Figure 6, stretchable self-contained electric system of the invention
100 output there is no variation before and after washing, and it is good washable to illustrate that the stretchable self-contained electric system 100 has
Property.
It is had good conductive property and higher capacitive character in order to illustrate the stretchable supercapacitor 120 in the present invention
Energy.Charge-discharge test also has been carried out to stretchable supercapacitor 120 in the present invention.Fig. 7 shows a reality according to the present invention
Apply cyclic voltammetry scan characteristic of the single stretchable supercapacitor 120 of example at different scanning rates (20~100mV/s)
Curve graph.As can be seen from Figure 7, for single stretchable supercapacitor 120, cyclic voltammetry curve is in the condition for sweeping speed more slowly
Under, cyclic voltammetry curve shows good capacitance characteristic close to rectangle.With the increase for sweeping speed, cyclic voltammetry curve is gradually
Deviate rectangle, shows biggish resistance characteristic.
Fig. 8 is stretchable supercapacitor 120 according to an embodiment of the invention at different electric currents (50~200 μ A)
Constant current charge-discharge curve graph.Wherein, the quantity of the stretchable supercapacitor 120 when test is one, and is carrying out perseverance
The size of current used when current charging and discharging is respectively 50 μ A, 80 μ A, 100 μ A and 200 μ A, voltage range 0-0.8V.From Fig. 8
It is found that thus it is outstanding to demonstrate the stretchable supercapacitor 120 without there is apparent resistance drop for charging and discharging curve
Capacitive property and excellent electric conductivity.
In order to match the output of friction nanometer power generator, serial connected super capacitor can reduce whole capacity and can be with
Increase controllable voltage, so that stretchable self-charging system is applicable to more electronic equipments.Fig. 9 is shown according to the present invention
The charge graph that the stretchable self-contained electric system 100 of one embodiment is collected the mechanical energy under 5Hz frequency and stored, Yi Jili
With the discharge curve of system drive load 140.Figure 10 shows stretchable self-powered according to an embodiment of the invention
System 100 is to load 140 working circuit diagrams being powered.The first switch 150 and second of control on-off is shown in Figure 10
Switch 160, and show connected load 140.The load 140 can be wearable electronic, such as electronic watch.
The solution of the present invention, inventor overcome technology habit, and supercapacitor is not used as an individual device
The outside of friction nanometer power generator is set, but is sealed in the inside of friction nanometer power generator.Also, present invention
People has found to be packaged the first carbon paper electrode 10 and supercapacitor using silicon rubber 20 in a creative way, while solving existing
Problem most existing for self-charging system in technology.By friction nanometer power generator and supercapacitor be packaged into one it is whole
Body can not only greatly reduce the size of device, additionally it is possible to which there is extraordinary tensility can and collect friction nanometer generating
The performance for the electric energy that machine issues.
In addition, silicon rubber 20 serves not only as the frictional layer of friction nanometer power generator, also it is used as friction nanometer power generator and surpasses
The sealing element of grade capacitor, enable the self-charging system with tensility while with waterproof performance.In addition, silicon rubber
20, the first carbon paper electrode 10 and supercapacitor all have certain deformability, so that the self-charging system has one on the whole
Determine deformability, is able to bear extraneous stretching, bending, distortion and crimp force.
In addition, according to the solution of the present invention, due to being sent out using silicon rubber 20,2 electrode of carbon paper etc. as composition friction nanometer
The components of motor and supercapacitor, these raw materials are cheap and easily-available, so that cost is relatively low for the self-charging system.
So far, although those skilled in the art will appreciate that present invention has been shown and described in detail herein multiple shows
Example property embodiment still without departing from the spirit and scope of the present invention, still can according to the present disclosure directly
Determine or deduce out many other variations or modifications consistent with the principles of the invention.Therefore, the scope of the present invention is understood that and recognizes
It is set to and covers all such other variations or modifications.
Claims (8)
1. a kind of stretchable self-contained electric system based on foldable carbon paper, comprising:
Stretchable friction nanometer power generator comprising silicon rubber and the first carbon paper electrode, first carbon paper electrode be arranged to by
It is sealed in the silicon rubber；
Stretchable supercapacitor is arranged to be sealed in the silicon rubber, and is spaced apart setting with first carbon paper,
It is configured to deform under extraneous drawing force, folding force and/or torsion, and the drawing force, folding force and/
Or it substantially restores to the original state when torsion disappearance；With
Rectifier bridge, for converting DC signal for the ac signal of the stretchable friction nanometer power generator output, and
The DC signal is exported to the stretchable supercapacitor；
The quantity of the stretchable supercapacitor is multiple, the multiple stretchable supercapacitor series connection；
Each stretchable supercapacitor be configured to it is folding so that the stretchable supercapacitor is in the first default side
To with tensility；Wherein, the stretchable supercapacitor of multiple series connections is configured to sawtooth pattern, city wall type or sinusoidal bent
Line style.
2. stretchable self-contained electric system according to claim 1, wherein first carbon paper electrode is configured to foldable
, so that first carbon paper electrode has tensility in the second preset direction.
3. stretchable self-contained electric system according to claim 2, wherein first carbon paper electrode is folding to be configured to
Sawtooth pattern, city wall type or sinusoidal.
4. stretchable self-contained electric system according to any one of claim 1-3, wherein the stretchable supercapacitor
Include:
Two layers of second carbon paper electrodes, second carbon paper electrode are constructed to be permeable to be folded along a fold line；
Solid electrolyte is applied separately at the surface of two layers of second carbon paper electrodes；With
Diaphragm is arranged between two layers of second carbon paper electrodes for being applied with the solid electrolyte, and the diaphragm is constructed to be permeable to
It is enough to be folded along the fold line.
5. stretchable self-contained electric system according to claim 4, wherein can be drawn described in being adjusted according to extraneous motion frequency
The number of supercapacitor is stretched, so that the equivalent capacity of the stretchable supercapacitor and stretchable friction nanometer power generator
The electric signal size of output matches.
6. a kind of preparation method of the stretchable self-contained electric system based on foldable carbon paper, includes the following steps:
The preparation step of first carbon paper electrode: the first carbon paper electrode is folded according to predetermined pattern；
The preparation step of stretchable supercapacitor: providing two layers of second carbon paper electrodes, respectively in two layers of second carbon papers electricity
Apply solid electrolyte at the surface of pole, one layer of diaphragm is arranged in two layers of the second carbon papers electricity for being applied with the solid electrolyte
Between pole, the diaphragm is pressed and dried with two layers of second carbon paper electrodes for being applied with the solid electrolyte, is prepared
Obtain stretchable supercapacitor；
Sealing step: the first carbon paper electrode folded and the stretchable supercapacitor are sealed in silicon rubber, wherein
First carbon paper electrode and the silicon rubber constitute stretchable friction nanometer power generator；
Electrical connecting step: the stretchable friction nanometer power generator and the stretchable supercapacitor are carried out by rectifier bridge
The ac signal of the stretchable friction nanometer power generator output is converted DC signal by connection, and will be described straight
Galvanic electricity signal is exported to the stretchable supercapacitor；
The quantity of the stretchable supercapacitor is multiple, the multiple stretchable supercapacitor series connection；
Each stretchable supercapacitor be configured to it is folding so that the stretchable supercapacitor is in the first default side
To with tensility；Wherein, the stretchable supercapacitor of multiple series connections is configured to sawtooth pattern, city wall type or sinusoidal bent
Line style.
7. preparation method according to claim 6, wherein first carbon paper electrode be configured to it is folding so that
First carbon paper electrode has tensility in the second preset direction.
8. a kind of wearable electronic, the wearable electronic is from of any of claims 1-5 stretchable
Self-contained electric system obtains electricity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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| CN108364799A (en) * | 2018-01-08 | 2018-08-03 | 南京邮电大学 | A kind of flexible super capacitor and preparation method thereof |
| CN108828156A (en) * | 2018-07-03 | 2018-11-16 | 佛山市影腾科技有限公司 | A kind of self-contained electric system of the smell sensor for vehicle |
| CN109916427B (en) * | 2019-04-09 | 2021-01-12 | 苏州大学 | Step counting system based on triboelectric pressure sensor |
| CN112713638A (en) * | 2021-01-11 | 2021-04-27 | 中北大学 | Self-powered flexible energy storage device and self-powered sensing device |
| CN114400921B (en) * | 2022-01-20 | 2023-05-23 | 苏州大学 | Stretchable energy collecting device and electronic device |
| CN114923967B (en) * | 2022-04-22 | 2023-04-28 | 江南大学 | Laminated electrochemical sensing device based on carbon paper electrode and application of laminated electrochemical sensing device in heavy metal detection |
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