CN114006549A - Graphene electrode nano generator preparation method and generator - Google Patents
Graphene electrode nano generator preparation method and generator Download PDFInfo
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- CN114006549A CN114006549A CN202111422155.0A CN202111422155A CN114006549A CN 114006549 A CN114006549 A CN 114006549A CN 202111422155 A CN202111422155 A CN 202111422155A CN 114006549 A CN114006549 A CN 114006549A
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- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 57
- 229910021389 graphene Inorganic materials 0.000 title claims abstract description 57
- 238000002360 preparation method Methods 0.000 title claims abstract description 19
- 238000000034 method Methods 0.000 claims abstract description 21
- 239000010410 layer Substances 0.000 claims description 47
- 239000012791 sliding layer Substances 0.000 claims description 28
- 229920001721 polyimide Polymers 0.000 claims description 20
- 239000002783 friction material Substances 0.000 claims description 10
- 238000000605 extraction Methods 0.000 claims description 8
- 230000001681 protective effect Effects 0.000 claims description 8
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims description 7
- 238000003698 laser cutting Methods 0.000 claims description 7
- 229910052709 silver Inorganic materials 0.000 claims description 7
- 239000004332 silver Substances 0.000 claims description 7
- 230000001678 irradiating effect Effects 0.000 claims description 6
- 238000007788 roughening Methods 0.000 claims description 6
- 239000004677 Nylon Substances 0.000 claims description 4
- 229920001778 nylon Polymers 0.000 claims description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- 229910052782 aluminium Inorganic materials 0.000 claims description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 claims description 3
- 239000010949 copper Substances 0.000 claims description 3
- 150000002825 nitriles Chemical class 0.000 claims description 3
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims 1
- 229910002091 carbon monoxide Inorganic materials 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 8
- 229910052751 metal Inorganic materials 0.000 abstract description 3
- 239000002184 metal Substances 0.000 abstract description 3
- 239000002689 soil Substances 0.000 abstract description 3
- 239000004642 Polyimide Substances 0.000 description 19
- 238000001755 magnetron sputter deposition Methods 0.000 description 4
- 229920006284 nylon film Polymers 0.000 description 3
- 238000001771 vacuum deposition Methods 0.000 description 3
- 244000137852 Petrea volubilis Species 0.000 description 2
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 239000003575 carbonaceous material Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000006698 induction Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000004377 microelectronic Methods 0.000 description 2
- 239000002390 adhesive tape Substances 0.000 description 1
- 238000005229 chemical vapour deposition Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 125000000524 functional group Chemical group 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- -1 graphite alkene Chemical class 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
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- 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
- H02N1/00—Electrostatic generators or motors using a solid moving electrostatic charge carrier
- H02N1/06—Influence generators
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Abstract
The application discloses a graphene electrode nano generator preparation method and a generator, the graphene electrode is induced by laser, the preparation flow of the nano generator is simplified, the production cost is reduced, the damage of a metal electrode to soil and environment is avoided, and the large-scale application and development of the graphene electrode nano generator are facilitated. In addition, the graphene electrode nano generator prepared by the method has good output performance and has great application potential in the aspect of realizing self-energy supply of the sensor.
Description
Technical Field
The application relates to the technical field of friction nanometer power generation, in particular to a graphene electrode nanometer power generator and a preparation method thereof.
Background
A triboelectric nanogenerator (TENG) is an emerging energy collection device, and mechanical energy in the environment is converted into electric energy through triboelectric and electrostatic induction coupling. After TENGs and energy storage equipment are integrated, a sustainable power supply can be provided for microelectronic equipment in the Internet of things and smart homes, and therefore self-power supply of the microelectronic equipment is achieved.
The principle of generating energy by the friction nano generator is as follows: due to the triboelectric effect, charge transfer occurs between the two friction thin layers with different frictions, so that a potential difference is formed between the two friction thin layers, and the two friction thin layers are respectively stuck on the back surfaces of the two friction thin layers to transmit to form current.
However, the existing friction nano-generator still has problems, for example, as an electrode of the main structure of the friction nano-generator, the currently common preparation method includes vacuum deposition or magnetron sputtering, both the two methods for preparing the electrode require special equipment, the preparation process is complex, the performance of the prepared electrode needs to be improved, and in addition, the metal material used in preparing the electrode is expensive and not easy to recycle, so that the problems of high manufacturing cost and low performance of the friction nano-generator are caused, and the wide popularization and use are not facilitated.
Disclosure of Invention
The application provides a graphene electrode nano generator and a preparation method thereof, and aims to solve the problems that in the existing friction nano generator, the electrode prepared by a vacuum deposition or magnetron sputtering method is poor in performance, and the preparation process is complex, so that the friction nano generator is high in manufacturing cost and poor in performance, and the wide popularization and use of the friction nano generator are affected.
The application provides a preparation method of a graphene electrode nano generator, which uses CO in a laser cutting machine2Irradiating the back of the PI film by laser to obtain two LIG electrodes in preset shapes; and (3) taking the PI film with two LIG electrodes as a friction layer, and selecting an electropositive friction material with positive charges after contact as a sliding layer to prepare the graphene electrode nano generator.
In some implementations, the LIG electrodes are shaped with an aspect ratio of 2: 1, and the interelectrode distance is half of the width of the electrode of the LIG electrode.
In some implementations, the LIG electrodes and external leads are connected by silver paste to form a pair of lead-out electrodes.
In some implementations, a protective backing layer is attached to the back of both the friction layer and the sliding layer to provide support.
In some implementations, preparing the LIG electrode further comprises: and performing surface roughening treatment on the PI film and the friction layer to ensure that the surfaces of the PI film and the friction layer have large friction.
The application also provides a graphene electrode nano generator, including frictional layer and sliding layer, the frictional layer is the PI film that has two LIG electrodes, and wherein, two LIG electrodes are for using the CO in the laser cutting machine2The sliding layer is formed by irradiating the back of the PI film with laser, and the sliding layer is an electropositive friction material with positive charges after contact.
In some implementations, the LIG electrodes are shaped with an aspect ratio of 2: 1, and the interelectrode distance is half of the width of the electrode of the LIG electrode.
In some implementations, the graphene electrode nanogenerator further includes a protective support layer for supporting and protecting the friction layer and the sliding.
In some implementations, the sliding layer uses an electropositive friction material including nylon, nitrile film, copper film, and aluminum film.
In some implementations, the graphene electrode nano-generator further includes an extraction electrode connected with the LIG electrode through a silver paste, and the extraction electrode is used for externally connecting an electric lead.
The application provides a graphene electrode nano generator preparation method and a generator, the graphene electrode is induced by laser, the preparation flow of the nano generator is simplified, the production cost is reduced, the damage of a metal electrode to soil and environment is avoided, and the large-scale application and development of the graphene electrode nano generator are facilitated. In addition, the graphene electrode nano generator prepared by the method has good output performance and has great application potential in the aspect of realizing self-energy supply of the sensor.
Drawings
In order to more clearly explain the technical solution of the present application, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious to those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a front view of a graphene electrode nanogenerator;
fig. 2 is a side view of a graphene electrode nanogenerator;
fig. 3 is an assembly view of a graphene electrode nanogenerator;
fig. 4 is a graph of open-circuit voltage data for a laser-induced graphene electrode nano-generator according to the present application;
fig. 5 is a graph of charge transfer data for a laser-induced graphene electrode nanogenerator according to the present application.
The reference numerals in fig. 1-3 refer to: 1-friction layer, 2-sliding layer and 3-LIG electrode.
Detailed Description
In order to solve the problems that the friction nano-generator is high in manufacturing cost and poor in performance due to the fact that the electrode manufactured by a vacuum deposition or magnetron sputtering method is poor in performance and the manufacturing process is complex in the existing friction nano-generator, and therefore the friction nano-generator is widely popularized and used, the application provides a graphene electrode nano-generator manufacturing method, and the specific implementation process comprises the following steps.
Step S100, using CO in laser cutting machine2And irradiating the back of the PI film by laser to obtain two LIG electrodes in preset shapes.
In this example, a laser cutter model E5030 was chosen which produced CO at a wavelength of 1060mm, a scan rate of 50mm/s and a maximum power of 75kW2And (4) laser.
In the present application, Polyimide (PI) is used as a material for preparing the LIG electrode, and is generally selected as an electronegative friction material for rubbing the nanogenerator due to the high electronegativity of the functional group.
In the application, an electrode is prepared by using Laser Induced Graphene (LIG), that is, porous graphene is generated by irradiating a carbon-based material with Laser, and when the surface of the carbon-based material is rapidly carbonized under the irradiation of the Laser, a porous structure is obtained. Compared with the method for preparing the graphene electrode by chemical vapor deposition or magnetron sputtering and the like, the laser induction method is simple to operate and low in cost, and can be operated in an air environment, and meanwhile, the prepared LIG electrode has good conductivity and high stability.
In the present application, the shape of the LIG electrode is aspect ratio 2: 1, and the interelectrode distance is half of the width of the electrode of the LIG electrode.
In order to increase the effective contact area between the friction layer and the sliding layer, the method for preparing the graphene electrode nanogenerator further comprises a step S001, wherein the step S further comprises the following steps before preparing the LIG electrode: and performing surface roughening treatment on the PI film and the friction layer to ensure that the surfaces of the PI film and the friction layer have large friction. In the prior art, there are various methods for surface roughening treatment, for example, using sand paper to rub the surface to achieve the purpose of surface roughening, and of course, those skilled in the art can select a suitable roughening method according to actual needs, which all fall within the scope of the present application.
And S200, taking the PI film with two LIG electrodes as a friction layer, and selecting an electropositive friction material with positive charges after contact as a sliding layer to prepare the graphene electrode nano generator.
In order to increase the structural stability of the friction layer and the sliding layer, the graphene electrode nano-generator preparation method further comprises the following step of attaching a protective supporting layer capable of playing a supporting role to the back surfaces of the friction layer and the sliding layer.
In this application, the acrylic plate is selected for use to the protection supporting layer, and of course, the panel that the field technician can select other materials as the protection supporting layer according to actual need, and it all belongs to the protection scope of this application.
In addition, as for the method for attaching the friction layer, the sliding layer and the protective supporting layer, the method for bonding is selected in the present application, and there are many adhesives that can be used in the prior art so as to achieve bonding without damaging the friction layer and the sliding layer, and the specific process of bonding and the type of the adhesive will not be specifically limited herein.
In the application, the preparation method of the graphene electrode nano generator further comprises the following step of connecting the LIG electrode with an external lead through silver paste to form a pair of extraction electrodes.
In order to facilitate a better understanding of the technical solution by those skilled in the art, a specific implementation process of the graphene electrode nano-generator preparation method of the present application is further described below with reference to an example.
Selecting a nylon film to prepare a sliding layer, selecting a PI film to prepare a friction layer, and polishing the surfaces of the nylon film and the PI film by using sand paper so as to increase the effective contact area of the friction layer and the sliding layer;
setting a laser cutting machine to be 11% of the maximum power, and irradiating the back of the PI film to obtain two rectangular LIG electrodes, wherein the length and the width of each LIG electrode are 2cm and 1cm respectively, and the distance between the two LIG electrodes is 0.5 cm;
the PI film with two LIG electrodes is used as a friction layer, the nylon film is used as a sliding layer, the acrylic plate is used as a protective supporting layer of the friction layer and the sliding layer of the nano generator, and the protective supporting layer is adhered to the back surfaces of nylon and PI by double faced adhesive tape;
the LIG electrode is connected with an external lead through silver paste to form a pair of lead-out electrodes;
the graphene electrode nano generator is connected with external equipment through a wire, and an electric signal generated by the graphene electrode nano generator is tested.
The present application further provides a graphene electrode nano-generator, fig. 1 is a front view of the graphene electrode nano-generator, fig. 2 is a side view of the graphene electrode nano-generator, fig. 3 is an assembly view of the graphene electrode nano-generator, and is shown in fig. 1-3, the graphene electrode nano-generator includes a friction layer 1 and a sliding layer 2, the friction layer is a PI film with two LIG electrodes 3, wherein the two LIG electrodes are CO films used in a laser cutting machine2The sliding layer is formed by irradiating the back of the PI film with laser, and the sliding layer is an electropositive friction material with positive charges after contact.
In this example, the shape of the LIG electrode is aspect ratio 2: 1, and the interelectrode distance is half of the width of the electrode of the LIG electrode.
In order to increase the structural stability of the friction layer and the sliding layer, the graphene electrode nano generator further comprises a first protection supporting layer attached and fixed to the friction layer and a second protection supporting layer attached and fixed to the sliding layer.
In the present application, the skilled person can select the electropositive friction material according to the actual requirement, including nylon, nitrile film, copper film and aluminum film, which all fall within the scope of protection of the present application.
In this application, graphite alkene electrode nano-generator still includes a pair of extraction electrode through silver thick liquid and LIG electrode connection, extraction electrode is used for external power utilization wire.
To illustrate the good performance of the graphene electrode nanogenerator of the present application, the following description will be made in detail through experimental data. The experimental preparation process comprises: the graphene electrode nano-generator is driven by simulating mechanical energy through a linear motor, and the open-circuit voltage and the transfer charge of the graphene electrode nano-generator are tested through a digital source meter, wherein the sampling frequency of the digital source meter is 10 kHz. In addition, in order to control the influence of the environment on the test result, a dehumidifier is used to control the ambient humidity within the range of 30-50%, and a person skilled in the art can select a suitable ambient humidity according to the actual requirement, such as 40%.
Fig. 4 is a data diagram of open-circuit voltage of the laser-induced graphene electrode nano-generator, fig. 5 is a data diagram of transfer charge of the laser-induced graphene electrode nano-generator, and it can be seen from fig. 4 and 5 that the open-circuit voltage and the transfer charge of the graphene electrode nano-generator are respectively 80V and 0.5nC, and the output performance is good.
The application provides a graphene electrode nano generator preparation method and a generator, the graphene electrode is induced by laser, the preparation flow of the nano generator is simplified, the production cost is reduced, the damage of a metal electrode to soil and environment is avoided, and the large-scale application and development of the graphene electrode nano generator are facilitated. In addition, the graphene electrode nano generator prepared by the method has good output performance and has great application potential in the aspect of realizing self-energy supply of the sensor.
The foregoing is illustrative of the best mode contemplated for carrying out the present application and all those parts not specifically mentioned are within the common general knowledge of a person of ordinary skill in the art. The protection scope of the present application is subject to the content of the claims, and any equivalent transformation based on the technical teaching of the present application is also within the protection scope of the present application.
Claims (10)
1. The preparation method of the graphene electrode nano generator is characterized in that CO in a laser cutting machine is used2Irradiating the back of the PI film by laser to obtain two LIG electrodes in preset shapes; and (3) taking the PI film with two LIG electrodes as a friction layer, and selecting an electropositive friction material with positive charges after contact as a sliding layer to prepare the graphene electrode nano generator.
2. The method of preparing a graphene electrode nanogenerator according to claim 1, wherein the shape of the LIG electrode is an aspect ratio of 2: 1, and the interelectrode distance is half of the width of the electrode of the LIG electrode.
3. The method for preparing the graphene electrode nano-generator according to claim 1, wherein the LIG electrode is connected with an external lead through silver paste to form a pair of extraction electrodes.
4. The method for preparing a graphene electrode nanogenerator according to claim 1, wherein protective support layers capable of supporting are attached to the back surfaces of the friction layer and the sliding layer.
5. The method for preparing the graphene electrode nanogenerator according to claim 1, wherein before preparing the LIG electrode, the method further comprises: and performing surface roughening treatment on the PI film and the friction layer to ensure that the surfaces of the PI film and the friction layer have large friction.
6. The graphene electrode nano generator is characterized by comprising a friction layer and a sliding layer, wherein the friction layer is a PI (polyimide) film with two LIG (laser induced generator) electrodes, and the two LIG electrodes are CO (carbon monoxide) in a laser cutting machine2The sliding layer is formed by irradiating the back of the PI film with laser, and the sliding layer is an electropositive friction material with positive charges after contact.
7. The graphene-electrode nanogenerator of claim 6, wherein the shape of the LIG electrode is aspect ratio 2: 1, and the interelectrode distance is half of the width of the electrode of the LIG electrode.
8. The graphene-electrode nanogenerator of claim 6, further comprising a protective support layer for supporting and protecting the friction layer and the sliding.
9. The graphene-electrode nanogenerator of claim 6, wherein the sliding layer uses an electropositive friction material comprising nylon, nitrile film, copper film and aluminum film.
10. The graphene electrode nano-generator according to claim 6, further comprising an extraction electrode connected with the LIG electrode through silver paste, wherein the extraction electrode is used for externally connecting an electric lead.
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| CN202111422155.0A CN114006549A (en) | 2021-11-26 | 2021-11-26 | Graphene electrode nano generator preparation method and generator |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20190288613A1 (en) * | 2018-03-13 | 2019-09-19 | Industry-University Cooperation Foundation Hanyang University | Paper-based triboelectric nanogenerator and method of manufacturing the same |
| CN110739879A (en) * | 2019-09-18 | 2020-01-31 | 浙江大学 | -body type flexible self-charging power supply for collecting agricultural environment energy and preparation method thereof |
| CN111879341A (en) * | 2020-07-31 | 2020-11-03 | 北京大学 | Self-powered sensing micro-system based on laser-induced graphene process |
| CN112398363A (en) * | 2019-08-16 | 2021-02-23 | 北京纳米能源与系统研究所 | Display device and display method |
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- 2021-11-26 CN CN202111422155.0A patent/CN114006549A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20190288613A1 (en) * | 2018-03-13 | 2019-09-19 | Industry-University Cooperation Foundation Hanyang University | Paper-based triboelectric nanogenerator and method of manufacturing the same |
| CN112398363A (en) * | 2019-08-16 | 2021-02-23 | 北京纳米能源与系统研究所 | Display device and display method |
| CN110739879A (en) * | 2019-09-18 | 2020-01-31 | 浙江大学 | -body type flexible self-charging power supply for collecting agricultural environment energy and preparation method thereof |
| CN111879341A (en) * | 2020-07-31 | 2020-11-03 | 北京大学 | Self-powered sensing micro-system based on laser-induced graphene process |
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