CN109616329A - A kind of flexible fiber shape self-powered supercapacitor and preparation method thereof - Google Patents
A kind of flexible fiber shape self-powered supercapacitor and preparation method thereof Download PDFInfo
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- CN109616329A CN109616329A CN201811407432.9A CN201811407432A CN109616329A CN 109616329 A CN109616329 A CN 109616329A CN 201811407432 A CN201811407432 A CN 201811407432A CN 109616329 A CN109616329 A CN 109616329A
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES OR LIGHT-SENSITIVE DEVICES, OF THE ELECTROLYTIC TYPE
- H01G11/00—Hybrid capacitors, i.e. capacitors having different positive and negative electrodes; Electric double-layer [EDL] capacitors; Processes for the manufacture thereof or of parts thereof
- H01G11/08—Structural combinations, e.g. assembly or connection, of hybrid or EDL capacitors with other electric components, at least one hybrid or EDL capacitor being the main component
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES OR LIGHT-SENSITIVE DEVICES, OF THE ELECTROLYTIC TYPE
- H01G11/00—Hybrid capacitors, i.e. capacitors having different positive and negative electrodes; Electric double-layer [EDL] capacitors; Processes for the manufacture thereof or of parts thereof
- H01G11/22—Electrodes
- H01G11/30—Electrodes characterised by their material
- H01G11/48—Conductive polymers
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES OR LIGHT-SENSITIVE DEVICES, OF THE ELECTROLYTIC TYPE
- H01G11/00—Hybrid capacitors, i.e. capacitors having different positive and negative electrodes; Electric double-layer [EDL] capacitors; Processes for the manufacture thereof or of parts thereof
- H01G11/84—Processes for the manufacture of hybrid or EDL capacitors, or components thereof
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES OR LIGHT-SENSITIVE DEVICES, OF THE ELECTROLYTIC TYPE
- H01G9/00—Electrolytic capacitors, rectifiers, detectors, switching devices, light-sensitive or temperature-sensitive devices; Processes of their manufacture
- H01G9/20—Light-sensitive devices
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES OR LIGHT-SENSITIVE DEVICES, OF THE ELECTROLYTIC TYPE
- H01G9/00—Electrolytic capacitors, rectifiers, detectors, switching devices, light-sensitive or temperature-sensitive devices; Processes of their manufacture
- H01G9/20—Light-sensitive devices
- H01G9/2022—Light-sensitive devices characterized by he counter electrode
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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
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
- Y02E10/542—Dye sensitized solar cells
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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 invention discloses a kind of flexible self-powered supercapacitors and preparation method thereof, preparation method includes the following steps: (1) using anode oxidation method in the orderly Nano tube array of titanium dioxide of titanium silk table face growing height, as the light anode of dye-sensitized solar cells, using conductive polymer fibers as dye-sensitized solar cells to electrode, it is encapsulated in FEP transparent tube and forms dye-sensitized solar cells, electrolyte I‑/I3 ‑Electrolyte；(2) using the conductive polymer fibers of dye-sensitized solar cells in step (1) as supercapacitor positive electrode and other conductive polymer fibers composition supercapacitor arranged in parallel, electrolyte is water system gel electrolyte.The cyclical stability of gross energy transformation efficiency and integrated device is not only increased using capacitor prepared by this method and reduces the loss of integrated device, preparation process is simplified, improves the integrated level of system.
Description
Technical field
The present invention relates to the conversions of fibrous energy and memory device technical field, and in particular to a kind of flexibility self-powered is super
Capacitor and preparation method thereof is applied in terms of wearable electronic device.
Background technique
The flexible energy device that the wearable fast development with intelligent electronic device makes it possible to power whenever and wherever possible is more next
More it is concerned by people.Solar energy have environmental protection, it is renewable, it is unrestricted and throughout it is extensive the features such as, all the time by the phase
It hopes and replaces traditional energy.But influenced by climate and weather, the output of solar energy be it is unstable and uncertain, will too
It is an available strategy that positive energy battery and energy storage device, which integrate, is capable of providing a stable sustainable energy
The power output fluctuation generated due to solar irradiation is reduced in source.Dye-sensitized solar cells is then considered as third generation light
Most promising candidate in solar battery is lied prostrate, cheap because it is light, preparation is simple and flexible fine.For energy
Stocking system is measured, battery and supercapacitor are two relatively popular energy, because they stablize and environmental protection.Wherein, surpass
Grade capacitor is due to high power density, overlength cycle life, long-time stability, light and cheap and more welcome by everybody.
Therefore, using solar battery as energy collection and capacitor as the integrated confession electric energy device of energy storage
Part is widely studied in the past few years.However the photovoltaic solar cell of traditional two-dimensional structure is not able to satisfy and can wear
The flexibility of wearing electronic device and the demand of deformation, and cannot breathe freely lead it is wet, these problems seriously limit in wearable device and
The development of other related fieldss, therefore, one-dimensional flexible, deformable and the fibrous energy collection and stocking system that can weave
More paid close attention to.But up to the present, total transformation efficiency of integrated fibrous self-powered energy device is also all special
Transformation efficiency that is low or being solar battery is low or is that the energy density of energy storage device is low.In addition to this, it connects
Connecting line between solar battery and energy storage device also will increase the loss of incident photon-to-electron conversion efficiency and reduce total energy
Transformation efficiency.Importantly, the cycle life and long-time stability of integrated confession electrical part carry out wearable electronic
Say it is also critically important, so far, the cycle life of most of integrated device not higher than 100 circles, so, need to study a kind of fiber
The electrode material of shape, which serves not only as energy collection device and energy storage device and can also be used as conducting wire, connects two
Independent device further increases the transformation efficiency and system stability of solar energy, reduces the loss of incident photon-to-electron conversion efficiency.
Summary of the invention
In order to overcome the above technical defects, the present invention provides a kind of flexible self-powered supercapacitor and its preparation sides
Method not only increases the cyclical stability and drop of gross energy transformation efficiency and integrated device using capacitor prepared by this method
The low loss of integrated device, simplifies preparation process, improves the integrated level of system.
In order to reach above-mentioned technical effect, the present invention takes following technical scheme: a kind of flexibility self-powered supercapacitor
Preparation method, which comprises the following steps: (1) using anode oxidation method it is orderly in titanium silk table face growing height
Nano tube array of titanium dioxide, as the light anode of dye-sensitized solar cells, using conductive polymer fibers as dye
Expect that sensitization solar battery to electrode, forms dye sensitization too in FEP transparent tube by the light anode and to electrode package
Positive energy battery, electrolyte I-/I3 -Electrolyte；(2) by the conductive polymer fibers of dye-sensitized solar cells in step (1)
As supercapacitor positive electrode and other conductive polymer fibers composition supercapacitor arranged in parallel, electrolyte is water system
Gel electrolyte.
Further technical solution is that the length of conductive polymer fibers is that the titanium dioxide is received in the step (1)
Two times of mitron array length.
Further technical solution is that the conducting polymer of conductive polymer fibers is selected from polypyrrole in the step (1)
And its derivative, Polyaniline and its derivative, polythiophene and its derivative, poly- Furan and its derivatives and polyacetylene and its derivative
Any one in object.
Further technical solution is the preparation method of conductive polymer fibers in the step (1) specifically:
Polymer fiber flexible is prepared using conducting polymer by wet spinning technology, the polymer fiber that will be obtained
0.01~10h is handled in inorganic solution, is cleaned with distilled water, and dry 0.01~1h in 50~150 DEG C of baking oven obtains the
First product is handled 0.01~10h by one product in inorganic solution.
Further technical solution is that the operating voltage window of the conductive polymer fibers is not less than 1V, energy conversion
Efficiency is not less than 7%, and conductivity is not less than 1000S/cm.
Further technical solution is that the electrolyte in the step (2) in water system gel electrolyte is selected from lithium chloride, chlorine
Change sodium, potassium chloride, lithium sulfate, sodium sulphate, potassium sulfate, lithium perchlorate, sodium perchlorate, potassium hyperchlorate, carboxymethyl cellulose lithium, carboxylic
Any one in sodium carboxymethylcellulose pyce and potassium carboxymethylcellulose.
It is described super the present invention also provides a kind of flexible self-powered supercapacitor prepared by the preparation method
The gross energy transformation efficiency of grade capacitor is not less than 3%, and cycle life is not less than 1000 circles.
Multi-functional conductive polymer fibers in the present invention act not only as dye-sensitized solar cells to electricity
Pole, and can be used as the electrode of supercapacitor, while there is the polymer of high conductivity to be also used as conducting wire connection dye
Expect sensitization solar battery and supercapacitor, the conductive polymer fibers and supercapacitor of dye-sensitized solar cells are just
Pole is connected directly, and the electron-transport for generating illumination is in the cathode of supercapacitor.The device be integrated with energy conversion, storage and
Conducting wire etc. is multi-functional in one；Total energy conversion efficiency and device integration are not only increased, instead of expensive platinum filament, is reduced
Cost, and improve the cyclical stability of system.The gross energy for the flexible fiber shape confession electrical part that the present invention integrates turns
Change efficiency is not less than 3%, and circulating ring number is to integrate total transformation efficiency in self-powered energy device at present and follow not less than 1000 circles
Ring number is highest.Meanwhile threadiness integrated device tool flexility is good, the strong feature of ability can be woven, in wearable electricity
It is had a good application prospect in sub- device.
Compared with the prior art, the invention has the following beneficial effects: flexibility self-powered threadiness prepared by the present invention is super
Capacitor, it is multi-functional in one which is integrated with energy conversion, storage and conducting wire etc.；Improve total energy conversion efficiency and
Device integration reduces costs.Meanwhile the threadiness supercapacitor flexility is good, it is strong to weave ability, wearable
It is had a good application prospect in electronic device.
Detailed description of the invention
Fig. 1 is TiO of the present invention2The SEM of nano-tube array schemes；
Fig. 2 is the SEM figure of the high conductive polymer composite fibre of the present invention；
Fig. 3 is the mechanism schematic diagram of the fibrous self-powered supercapacitor of the present invention；
Fig. 4 is the CV curve of the fibrous self-powered supercapacitor of the present invention；
Fig. 5 is the J-V curve of the high conductive polymer fiber dyes sensitization solar battery of the present invention；
Fig. 6 is light charging-constant-current discharge curve of the fibrous self-powered supercapacitor of the present invention；
Fig. 7 is the concatenated light charging-constant-current discharge curve of the fibrous self-powered supercapacitor of the present invention.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, right below in conjunction with drawings and examples
The present invention is further elaborated, it should be understood that described herein specific examples are only used to explain the present invention, not
For limiting the present invention.
Fig. 1 is TiO of the present invention2The SEM of nano-tube array schemes, as can be seen from the figure TiO2Nanotube vertical-growth is in Ti
Silk table face, TiO2The diameter of nanotube is 60nm.
Fig. 2 is the SEM figure of the high conductive polymer composite fibre of the present invention, and the diameter of highly conductive fiber is about 90 μm,
And it can work out only one China knot with good flexibility.
Fig. 3 is the mechanism schematic diagram of the fibrous self-powered supercapacitor of the present invention, after sunlight irradiates, N719 dyestuff
Molecule (D) transfer is excitation state (D*), and the exciton of generation dissociates and injects an electronics to TiO2It is same with this in nanotube conduction band
When, the dyestuff in excitation state becomes the dye molecule (D of oxidation state+).It is stored in after the electronics that light anode light generates
The anode of energy storage device irradiates by continuous light, is continuously available electronics in light anode and is stored in the anode of supercapacitor
In, this process can quickly charge to supercapacitor, when the voltage of capacitor positive and negative polarities is close to solar battery
After open-circuit voltage, charging stops.In electric discharge, electron stream reaches the cathode of supercapacitor by external circuit and is transferred to dyestuff
Sensitization solar battery to electrode, at this point, the I in electrolyte3 -Ion is diffused to electrode surface, and is reduced to I-From
Son, and dye molecule (D+) it is returned as ground state (D) again.By this process, confess that electric energy fiber converts solar energy
It is stored in supercapacitor for electric energy, the electrochemical energy of storage can be released by constant-current discharge
Fig. 4 is the CV curve of the fibrous self-powered supercapacitor of the present invention, it can be seen that the voltage window of supercapacitor
Mouth is 1.5V, and with the increase for sweeping speed, CV curve still can keep rectangle, shows the capacitor assembled by conductive polymer electrodes
Device has good chemical property and high rate performance.
Fig. 5 is the J-V curve of the high conductive polymer fiber dyes sensitization solar battery of the present invention, and open-circuit voltage is
0.71V, short circuit current are 15.6mA cm-2, fill factor 63.7%, incident photon-to-electron conversion efficiency 7.3%, with platinum filament efficiency phase
When (7.2%).
Fig. 6 is light charging-constant-current discharge curve of the fibrous self-powered supercapacitor of the present invention, a solar battery
It charges to a supercapacitor, supercapacitor quickly can be charged to 0.68V in illumination 8.5s, it is permanent by 200 μ A electric currents
Electricity is banished, calculating total incident photon-to-electron conversion efficiency is 4.6%
Fig. 7 is the concatenated light charging-constant-current discharge curve of the fibrous self-powered supercapacitor of the present invention, five sun electricity
It charges to two supercapacitors in pond, it can be seen that the voltage of supercapacitor can achieve 3.2V, can satisfy two completely
The voltage requirements of supercapacitor.
Embodiment 1
The titanium silk of the orderly Nano tube array of titanium dioxide of surface growing height and the poly- furans fiber of two double-lengths are encapsulated in FEP
Dye-sensitized solar cells, electrolyte I are formed in transparent tube-/I3 -Electrolyte；Simultaneously by dye-sensitized solar cells
Poly- furans fiber form super capacitor as supercapacitor positive electrode and an other poly- furans with the spacing of 1mm is arranged in parallel
Device, both ends are fixed in PET film using conductive tape and conductive silver glue, and surface coats lithium chloride-PVA gel electrolyte, i.e.,
Flexible fiber shape self-powered supercapacitor integration device is made, gross energy transformation efficiency is 3.5%, and circulating ring number is 1000
Circle.
Embodiment 2
The titanium silk of the orderly Nano tube array of titanium dioxide of surface growing height and the polythiophene fiber of two double-lengths are encapsulated in FEP
Dye-sensitized solar cells, electrolyte I are formed in transparent tube-/I3 -Electrolyte；Simultaneously by dye-sensitized solar cells
Polythiophene fiber form super capacitor as supercapacitor positive electrode and an other polythiophene with the spacing of 1mm is arranged in parallel
Device, both ends are fixed in PET film using conductive tape and conductive silver glue, and surface coats potassium sulfate-PVA gel electrolyte, i.e.,
Flexible fiber shape self-powered supercapacitor integration device is made, gross energy transformation efficiency is 5.0%, and circulating ring number is 2000
Circle.
Embodiment 3
The titanium silk of the orderly Nano tube array of titanium dioxide of surface growing height and the polyaniline fiber of two double-lengths are encapsulated in FEP
Dye-sensitized solar cells, electrolyte I are formed in transparent tube-/I3 -Electrolyte；Simultaneously by dye-sensitized solar cells
Polyaniline fiber form super capacitor as supercapacitor positive electrode and an other polyaniline with the spacing of 1mm is arranged in parallel
Device, both ends are fixed in PET film using conductive tape and conductive silver glue, and surface coats carboxymethyl cellulose lithium-PVA gel electricity
Liquid is solved, flexible fiber shape self-powered supercapacitor integration device is obtained, gross energy transformation efficiency is 4.5%, circulating ring
Number is 1500 circles.
Embodiment 4
The titanium silk of the orderly Nano tube array of titanium dioxide of surface growing height and the polypyrrole fiber of two double-lengths are encapsulated in FEP
Dye-sensitized solar cells, electrolyte I are formed in transparent tube-/I3 -Electrolyte；Simultaneously by dye-sensitized solar cells
Polypyrrole fiber form super capacitor as supercapacitor positive electrode and an other polypyrrole with the spacing of 1mm is arranged in parallel
Device, both ends are fixed in PET film using conductive tape and conductive silver glue, and surface coats sodium perchlorate-PVA gel electrolyte,
Flexible fiber shape self-powered supercapacitor integration device is obtained, gross energy transformation efficiency is 4.0%, and circulating ring number is
1300 circles.
Embodiment 5
The titanium silk of the orderly Nano tube array of titanium dioxide of surface growing height and the poly- furans fiber of two double-lengths are encapsulated in FEP
Dye-sensitized solar cells, electrolyte I are formed in transparent tube-/I3 -Electrolyte；Simultaneously by dye-sensitized solar cells
Poly- furans fiber form super capacitor as supercapacitor positive electrode and an other poly- furans with the spacing of 1mm is arranged in parallel
Device, both ends are fixed in PET film using conductive tape and conductive silver glue, and surface coats sodium chloride-PVA gel electrolyte, i.e.,
Flexible fiber shape self-powered supercapacitor integration device is made, gross energy transformation efficiency is 3.8%, and circulating ring number is 1500
Circle.
Embodiment 6
The titanium silk of the orderly Nano tube array of titanium dioxide of surface growing height and the polythiophene fiber of two double-lengths are encapsulated in FEP
Dye-sensitized solar cells, electrolyte I are formed in transparent tube-/I3 -Electrolyte；Simultaneously by dye-sensitized solar cells
Polythiophene fiber form super capacitor as supercapacitor positive electrode and an other polythiophene with the spacing of 1mm is arranged in parallel
Device, both ends are fixed in PET film using conductive tape and conductive silver glue, and surface coats lithium sulfate-PVA gel electrolyte, i.e.,
Flexible fiber shape self-powered supercapacitor integration device is made, gross energy transformation efficiency is 5.5%, and circulating ring number is 2000
Circle.
Embodiment 7
The titanium silk of the orderly Nano tube array of titanium dioxide of surface growing height and the polyaniline fiber of two double-lengths are encapsulated in FEP
Dye-sensitized solar cells, electrolyte I are formed in transparent tube-/I3 -Electrolyte；Simultaneously by dye-sensitized solar cells
Polyaniline fiber form super capacitor as supercapacitor positive electrode and an other polyaniline with the spacing of 1mm is arranged in parallel
Device, both ends are fixed in PET film using conductive tape and conductive silver glue, and surface coats potassium chloride-PVA gel electrolyte, i.e.,
Flexible fiber shape self-powered supercapacitor integration device is made, gross energy transformation efficiency is 6.0%, and circulating ring number is 1500
Circle.
Embodiment 8
The titanium silk of the orderly Nano tube array of titanium dioxide of surface growing height and the polypyrrole fiber of two double-lengths are encapsulated in FEP
Dye-sensitized solar cells, electrolyte I are formed in transparent tube-/I3 -Electrolyte；Simultaneously by dye-sensitized solar cells
Polypyrrole fiber form super capacitor as supercapacitor positive electrode and an other polypyrrole with the spacing of 1mm is arranged in parallel
Device, both ends are fixed in PET film using conductive tape and conductive silver glue, and surface coats potassium carboxymethylcellulose-PVA gel electricity
Liquid is solved, flexible fiber shape self-powered supercapacitor integration device is obtained, gross energy transformation efficiency is 4.0%, circulating ring
Number is 1000 circles.
Although reference be made herein to invention has been described for explanatory embodiment of the invention, it should be appreciated that, ability
Field technique personnel can be designed that a lot of other modification and implementations, these modifications and implementations will fall in the application public affairs
Within the scope and spirit opened.
Claims (7)
1. a kind of preparation method of flexibility self-powered supercapacitor, which comprises the following steps: (1) use anode
Method for oxidation is in the orderly Nano tube array of titanium dioxide of titanium silk table face growing height, as dye-sensitized solar cells
Light anode, using conductive polymer fibers as dye-sensitized solar cells to electrode, by the light anode and to electrode package
Dye-sensitized solar cells, electrolyte I are formed in FEP transparent tube-/I3 -Electrolyte；(2) by dyestuff in step (1)
The conductive polymer fibers of sensitization solar battery are parallel with an other conductive polymer fibers as supercapacitor positive electrode
Supercapacitor is rearranged, electrolyte is water system gel electrolyte.
2. the preparation method of flexibility self-powered supercapacitor according to claim 1, which is characterized in that the step
(1) length of conductive polymer fibers is two times of the Nano tube array of titanium dioxide length in.
3. the preparation method of flexibility self-powered supercapacitor according to claim 1, which is characterized in that the step
(1) in the conducting polymer of conductive polymer fibers be selected from polypyrrole and its derivative, Polyaniline and its derivative, polythiophene and
Any one in its derivative, poly- Furan and its derivatives and polyacetylene and its derivative.
4. the preparation method of flexibility self-powered supercapacitor according to claim 1, which is characterized in that the step
(1) preparation method of conductive polymer fibers in specifically: utilize conducting polymer to prepare by wet spinning technology flexible
Obtained polymer fiber is handled 0.01~10h by polymer fiber in inorganic solution, is cleaned with distilled water, 50~150
DEG C baking oven in dry 0.01~1h, obtain the first product, first product handled into 0.01~10h in inorganic solution.
5. the preparation method of flexibility self-powered supercapacitor according to claim 4, which is characterized in that described conductive poly-
The operating voltage window for closing fibres is not less than 1V, and energy conversion efficiency is not less than 7%, and conductivity is not less than 1000S/cm.
6. the preparation method of flexibility self-powered supercapacitor according to claim 1, which is characterized in that the step
(2) electrolyte in water system gel electrolyte is selected from lithium chloride, sodium chloride, potassium chloride, lithium sulfate, sodium sulphate, potassium sulfate, height
Appointing in lithium chlorate, sodium perchlorate, potassium hyperchlorate, carboxymethyl cellulose lithium, sodium carboxymethylcellulose and potassium carboxymethylcellulose
It anticipates one kind.
7. the flexible self-powered supercapacitor that a kind of claim 1~6 any one is prepared, which is characterized in that described
The gross energy transformation efficiency of supercapacitor is not less than 3%, and cycle life is not less than 1000 circles.
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| CN111029170B (en) * | 2019-12-24 | 2021-06-04 | 郑州四维特种材料有限责任公司 | Method for preparing flexible energy storage material |
| CN111354574A (en) * | 2020-03-12 | 2020-06-30 | 东北大学秦皇岛分校 | Preparation method for preparing supercapacitor by taking waste phenolic insulation board as raw material |
| CN115512977A (en) * | 2022-10-14 | 2022-12-23 | 重庆文理学院 | FeP hollow nanorod for supercapacitor and preparation method thereof |
| CN115512977B (en) * | 2022-10-14 | 2023-06-02 | 重庆文理学院 | FeP hollow nanorod for super capacitor and preparation method thereof |
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