CN114446675A - Preparation method of flexible electrode of supercapacitor, flexible electrode and application thereof - Google Patents
Preparation method of flexible electrode of supercapacitor, flexible electrode and application thereof Download PDFInfo
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- CN114446675A CN114446675A CN202111584823.XA CN202111584823A CN114446675A CN 114446675 A CN114446675 A CN 114446675A CN 202111584823 A CN202111584823 A CN 202111584823A CN 114446675 A CN114446675 A CN 114446675A
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- 238000002360 preparation method Methods 0.000 title claims abstract description 23
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 60
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 36
- 239000003990 capacitor Substances 0.000 claims abstract description 33
- 239000011230 binding agent Substances 0.000 claims abstract description 32
- 239000011267 electrode slurry Substances 0.000 claims abstract description 17
- 238000003756 stirring Methods 0.000 claims abstract description 17
- 238000004140 cleaning Methods 0.000 claims abstract description 13
- 239000004744 fabric Substances 0.000 claims abstract description 13
- 229920000049 Carbon (fiber) Polymers 0.000 claims abstract description 12
- 239000004917 carbon fiber Substances 0.000 claims abstract description 12
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims abstract description 12
- 238000002156 mixing Methods 0.000 claims abstract description 10
- 239000011248 coating agent Substances 0.000 claims abstract description 8
- 238000000576 coating method Methods 0.000 claims abstract description 8
- 239000002002 slurry Substances 0.000 claims abstract description 7
- 238000007865 diluting Methods 0.000 claims abstract description 5
- 238000000227 grinding Methods 0.000 claims abstract description 5
- 238000001035 drying Methods 0.000 claims abstract description 4
- 239000000243 solution Substances 0.000 claims description 10
- 238000000034 method Methods 0.000 claims description 9
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 claims description 8
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 8
- 238000007580 dry-mixing Methods 0.000 claims description 7
- 238000004519 manufacturing process Methods 0.000 claims description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 7
- 239000004020 conductor Substances 0.000 claims description 6
- 239000008367 deionised water Substances 0.000 claims description 6
- 229910021641 deionized water Inorganic materials 0.000 claims description 6
- 239000011268 mixed slurry Substances 0.000 claims description 6
- 239000000758 substrate Substances 0.000 claims description 6
- 150000001252 acrylic acid derivatives Chemical class 0.000 claims description 5
- 239000007864 aqueous solution Substances 0.000 claims description 4
- 230000008569 process Effects 0.000 claims description 4
- 238000005096 rolling process Methods 0.000 claims description 4
- 239000007787 solid Substances 0.000 claims description 3
- 239000000463 material Substances 0.000 abstract description 13
- 238000005452 bending Methods 0.000 abstract description 6
- 230000002035 prolonged effect Effects 0.000 abstract description 3
- 239000000203 mixture Substances 0.000 abstract 1
- 239000011888 foil Substances 0.000 description 8
- 229910052782 aluminium Inorganic materials 0.000 description 6
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 6
- 238000005260 corrosion Methods 0.000 description 4
- 230000007797 corrosion Effects 0.000 description 4
- 229920002134 Carboxymethyl cellulose Polymers 0.000 description 3
- 235000010948 carboxy methyl cellulose Nutrition 0.000 description 3
- 238000004537 pulping Methods 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 230000008961 swelling Effects 0.000 description 2
- 239000005030 aluminium foil Substances 0.000 description 1
- MTAZNLWOLGHBHU-UHFFFAOYSA-N butadiene-styrene rubber Chemical group C=CC=C.C=CC1=CC=CC=C1 MTAZNLWOLGHBHU-UHFFFAOYSA-N 0.000 description 1
- 239000001768 carboxy methyl cellulose Substances 0.000 description 1
- 239000008112 carboxymethyl-cellulose Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 229920001940 conductive polymer Polymers 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 239000008151 electrolyte solution Substances 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 238000010295 mobile communication Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-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
- H01G11/66—Current collectors
- H01G11/68—Current collectors characterised by their material
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-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
- H01G11/32—Carbon-based
- H01G11/34—Carbon-based characterised by carbonisation or activation of carbon
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-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
- H01G11/86—Processes for the manufacture of hybrid or EDL capacitors, or components thereof specially adapted for electrodes
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Electric Double-Layer Capacitors Or The Like (AREA)
Abstract
The invention relates to the field of super-capacitive electrodes, in particular to a preparation method of a super-capacitor flexible electrode, the super-capacitor flexible electrode and application of the super-capacitor flexible electrode. The technical scheme adopted by the invention is as follows: cleaning and drying the flexible carbon-based carrier; diluting the binder into a binder solution; stirring and mixing the active carbon and the conductive carbon; mixing the mixed material with a binder solution; uniformly dispersing the mixture of the activated carbon and the conductive carbon in a binder solution; grinding the dispersed slurry to obtain electrode slurry; coating the electrode slurry on a flexible carbon-based carrier to form an electrode plate; baking the electrode plate; finally obtaining the baked finished electrode plate. According to the technical scheme, the carbon fiber cloth is used as the current collector and has flexibility, the manufactured electrode pole piece can be bent, the probability of material falling and edge breakage is low during bending, the service life of the super capacitor can be effectively prolonged, and the internal short circuit of the capacitor caused by material falling and edge breakage is avoided.
Description
Technical Field
The invention relates to the field of super-capacitive electrodes, in particular to a preparation method of a super-capacitor flexible electrode, the super-capacitor flexible electrode and application of the super-capacitor flexible electrode.
Background
The super capacitor is a novel energy storage device, and the principle of the super capacitor is based on porous carbon, conductive polymer and the like, and the super capacitor is used for storing energy by performing quick charge and discharge on an electrode surface-electrolyte interface. The appearance of the super capacitor fills the gap between the traditional capacitor and the battery, and the future multifunctional consumer electronics products need novel functions and characteristics of thinness, lightness, flexibility, transparency and the like, so that the super capacitor has wide application prospects in various fields, including the fields of medical treatment and health, electric automobiles, mobile communication, military industry and the like, and is highly valued in various countries in the world.
The electrode is the core device of the super capacitor, and the performance of the super capacitor mainly depends on the material and the structure of the electrode of the capacitor. The super capacitor mainly depends on the reaction of the electrode and the surface of the electrolyte solution to store energy, so the pole piece of the super capacitor plays a key role in the performance of the product. The preparation method of the prior pole piece mainly comprises the following steps:
1) mixing and pulping the conductive carbon, the activated carbon and the binder;
2) uniformly coating the slurry on the surface of the aluminum foil
3) Baking the pole piece at high temperature;
4) winding the pole piece;
the mainstream binder that uses at present is butadiene styrene rubber + carboxymethyl cellulose, and the mass flow body of using is the corruption aluminium foil, and the problem that the material can appear falling and collapse the limit in the process is cut to the pole piece of preparing, can reduce the life-span of product on the one hand, and on the other hand probably causes ultracapacitor system's internal short circuit.
The current collector for preparing the pole piece at present is a corroded aluminum foil, can not be repeatedly folded, can only be applied to a supercapacitor with a rigid structure, and can not be applied to a flexible supercapacitor.
In view of the above, it is necessary to provide a novel flexible pole piece for a super capacitor and a method for preparing the same to overcome the above disadvantages.
Disclosure of Invention
The invention provides a preparation method of a flexible electrode of a super capacitor, the flexible electrode and application of the flexible electrode, which replace the traditional current collector materials such as a corrosion aluminum foil and the like.
In order to achieve the purpose, the invention adopts the technical scheme that: the invention relates to a preparation method of a flexible electrode of a super capacitor, which comprises the following steps:
1) cleaning and drying the flexible carbon-based carrier;
2) diluting the binder into a binder solution according to a required proportion;
3) stirring and mixing the active carbon and the conductive carbon to form a conductive material;
4) mixing the mixed conductive material with a binder solution according to the proportion requirement to obtain primary mixed slurry;
5) stirring the primary mixed slurry mixed in the previous step, and uniformly dispersing the activated carbon and the conductive carbon in a binder solution;
6) grinding the dispersed slurry to obtain electrode slurry;
7) coating the electrode slurry on a flexible carbon-based carrier to form an electrode plate;
8) baking the electrode plate coated with the electrode slurry;
9) and finally, obtaining a baked finished electrode piece, and rolling the finished electrode piece.
According to the preparation method of the flexible electrode of the supercapacitor, the flexible carbon-based carrier is carbon fiber cloth.
According to the preparation method of the flexible electrode of the supercapacitor, in the step 1), the flexible carbon-based carrier is cleaned in an ultrasonic mode, acetone and ethanol are used for cleaning, the cleaning temperature is 10-60 ℃, and the cleaning time is 5-20 min.
According to the preparation method of the flexible electrode of the supercapacitor, in the step 2), the binder is diluted to be 0.5-10% of aqueous solution by mass fraction by using a stirrer.
According to the preparation method of the flexible electrode of the supercapacitor, the activated carbon and the conductive carbon in the step 3) are mixed in a dry mixing mode, and the dry mixing time is 8-16 hours.
According to the preparation method of the flexible electrode of the supercapacitor, in the step 4), the activated carbon accounts for 75-90% by mass, the conductive carbon accounts for 5-20% by mass, and the binder accounts for 4-15% by mass.
According to the preparation method of the flexible electrode of the supercapacitor, the temperature for stirring and dispersing in the step 5) is 20-60 ℃, the stirring and dispersing time is 2-7 hours, and deionized water is added for multiple times in the stirring and dispersing process.
According to the preparation method of the flexible electrode of the supercapacitor, the solid content of the electrode slurry ground in the step 6) is 8-30%.
According to the preparation method of the flexible electrode of the supercapacitor, in the step 8), the electrode baking temperature of the pole piece is 40-110 ℃.
According to another protection content in the same technical scheme, the flexible electrode manufactured by the preparation method of the flexible electrode of the supercapacitor is characterized in that a substrate of the flexible electrode is a flexible carbon-based carrier, and the surface of the substrate is coated with dried electrode slurry.
According to another protection content under the same technical scheme, the invention provides an application of the flexible electrode, wherein the flexible electrode is used as an electrode pole piece of the super capacitor and is wound into a battery cell for use.
According to the technical scheme, the carbon fiber cloth is used as the current collector to replace a traditional corrosion aluminum foil material, compared with a traditional corrosion aluminum foil, the carbon fiber cloth is flexible, the manufactured electrode pole piece can be bent, the probability of material falling and edge breakage is low during bending, the service life of the super capacitor can be effectively prolonged, and the internal short circuit of the capacitor caused by material falling and edge breakage is avoided.
The acrylic acid derivative multipolymer is used as the binder to replace the traditional SBR + CMC binder, the acrylic acid derivative multipolymer aqueous solution has higher molecular weight, low swelling degree and stronger binding power, and the flexibility of the pole piece can be obviously improved.
Drawings
FIG. 1 is a flow chart of a manufacturing method of the present invention.
FIG. 2 is a diagram of a pole piece manufactured by the manufacturing method of the present invention.
Detailed Description
The present invention will be further described with reference to the following specific details,
the invention discloses a method for manufacturing a flexible pole piece of a super capacitor.
The flexible pole piece substrate of the supercapacitor is a flexible carbon-based carrier, the flexible carbon-based carrier is carbon fiber cloth, and the surface of the substrate is coated with dried electrode slurry.
The invention relates to a method for manufacturing a flexible pole piece, which adopts raw materials comprising activated carbon, conductive carbon, a binder, carbon fiber cloth, deionized water, acetone and ethanol.
The manufacturing method of the flexible pole piece comprises the following steps:
1) cleaning and drying the carbon cloth;
2) diluting the binder to a desired ratio;
3) stirring and dry-mixing the active carbon and the conductive carbon;
4) mixing the dry-mixed material and a binder according to a certain proportion;
5) stirring and dispersing the mixed substances in the previous step;
6) grinding the dispersed slurry;
7) coating the slurry on the carbon fiber cloth,
8) baking the coated pole piece;
9) and rolling the baked pole piece.
Embodiments of the invention are further illustrated by the following specific detailed description.
1) Ultrasonically cleaning the carbon fiber cloth by using acetone and ethanol, wherein the cleaning temperature is 10-60 ℃, and the cleaning time is 5-20 min;
2) adding deionized water into the binder according to a required proportion for dilution, and diluting the binder into a binder water solution with the mass fraction of 0.5-10%;
3) stirring and dry-mixing the activated carbon and the conductive carbon, specifically, performing dewatering and dry-mixing at the temperature of 100-200 ℃ for 8-16 h, and mixing to obtain a conductive material;
4) mixing, dispersing and pulping the mixed conductive material and a binder solution, wherein the mass ratio of the activated carbon is 75-90%, the mass ratio of the conductive carbon is 5-20%, and the mass ratio of the binder solution is 4-15%, so as to obtain a primary mixed slurry;
5) stirring the preliminary mixed slurry mixed in the previous step, uniformly dispersing the activated carbon and the conductive carbon in a binder solution, wherein the stirring and dispersing temperature is 20-60 ℃, the stirring and dispersing time is 2-7 hours, and adding deionized water for multiple times in the pulping process.
6) And grinding the dispersed slurry for 4-10 times to obtain the electrode slurry, wherein the solid content of the ground electrode slurry is 8-30%.
7) And coating the electrode slurry on a flexible carbon-based carrier to form an electrode plate, wherein the coating speed needs to be controlled at 0.1-5 m/s.
8) Baking the electrode plate coated with the electrode slurry at the baking temperature of 40-110 ℃;
9) and finally, obtaining a baked finished electrode piece, and rolling the finished electrode piece.
According to the embodiment of the invention, the flexible pole piece is used as the pole piece of the super capacitor, the flexible pole piece is wound into the battery cell, and the battery cell is placed into the super capacitor according to the manufacturing method of the super capacitor, so that the super capacitor with the flexible pole piece is manufactured.
The flexible pole piece manufactured by the invention takes the carbon fiber cloth as a current collector to replace the traditional metal foil piece with corrosion characteristic. Compared with the traditional metal foils such as aluminum foil and the like, the carbon fiber cloth has the flexible characteristic, the manufactured electrode plate can be bent, the probability of material falling and edge breakage during bending can be obviously low, and the service life of the super capacitor is obviously prolonged. And the flexible motor pole piece can avoid the electrode leakage caused by material dropping and edge collapse, and the short circuit in the super capacitor is reduced.
According to the invention, the acrylic acid derivative multipolymer is used as a binder to be dissolved in deionized water to replace the traditional SBR + CMC binder, the acrylic acid derivative multipolymer aqueous solution has higher molecular weight, low swelling degree and stronger and better binding power, and the manufactured flexible pole piece can obviously improve the flexibility degree. Bending is easier when bending the pole pieces of the supercapacitor to be manufactured.
It can be seen from fig. 2 that the flexible motor manufactured by the present invention has good flexibility characteristics, and the whole structure has no obvious material dropping and breaking after bending.
The above example is only one preferred embodiment of the invention and does not limit it in any way, and other variants are possible within the scope of the invention described in the claims. All improvements, modifications and substitutions that come within the spirit and scope of the invention are desired to be protected by the following claims.
Claims (10)
1. A preparation method of a flexible electrode of a super capacitor is characterized by comprising the following steps:
1) cleaning and drying the flexible carbon-based carrier;
2) diluting the binder into a binder solution according to a required proportion;
3) stirring and mixing the active carbon and the conductive carbon to form a conductive material;
4) mixing the mixed conductive material with a binder solution according to the proportion requirement to obtain primary mixed slurry;
5) stirring the preliminary mixed slurry mixed in the previous step, and uniformly dispersing the activated carbon and the conductive carbon in a binder solution;
6) grinding the dispersed slurry to obtain electrode slurry;
7) coating the electrode slurry on a flexible carbon-based carrier to form an electrode plate;
8) baking the electrode plate coated with the electrode slurry;
9) and finally, obtaining a baked finished electrode piece, and rolling the finished electrode piece.
2. The preparation method of the flexible electrode of the supercapacitor according to claim 1, wherein the flexible carbon-based carrier in the step 1) is carbon fiber cloth, the carbon fiber cloth is cleaned in an ultrasonic mode, acetone and ethanol are used for cleaning, the cleaning temperature is 10-60 ℃, and the cleaning time is 5-20 min.
3. The preparation method of the flexible electrode of the supercapacitor according to claim 1, wherein the binder in the step 2) is an acrylic acid derivative multipolymer, and the binder is diluted to an aqueous solution with a mass fraction of 0.5-10% by using a stirrer.
4. The preparation method of the flexible electrode of the supercapacitor according to claim 1, wherein the activated carbon and the conductive carbon in the step 3) are mixed in a dry mixing mode, and the dry mixing time is 8-16 hours.
5. The preparation method of the flexible electrode of the supercapacitor according to claim 1, wherein in the step 4), the activated carbon accounts for 75-90% by mass, the conductive carbon accounts for 5-20% by mass, and the binder accounts for 4-15% by mass.
6. The preparation method of the flexible electrode of the supercapacitor according to claim 1, wherein the temperature for stirring and dispersing in the step 5) is 20-60 ℃, the stirring and dispersing time is 2-7 hours, and deionized water is added in multiple times during the stirring and dispersing process.
7. The preparation method of the flexible electrode of the supercapacitor according to claim 1, wherein the solid content of the electrode slurry ground in the step 6) is 8-30%.
8. The method for preparing the flexible electrode of the supercapacitor according to claim 1, wherein the coating density in the step 7) is 1-10 mg/cm2And 8) baking the electrode of the pole piece at the temperature of 40-110 ℃ for 5-20 min.
9. A flexible electrode manufactured by the method for manufacturing a flexible electrode of a supercapacitor according to claim 1,
the substrate of the flexible electrode is a flexible carbon-based carrier, and the surface of the substrate is coated with dried electrode slurry.
10. The use of the flexible electrode according to claim 9, wherein the flexible electrode is wound into a cell as an electrode sheet of a supercapacitor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111584823.XA CN114446675A (en) | 2021-12-23 | 2021-12-23 | Preparation method of flexible electrode of supercapacitor, flexible electrode and application thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111584823.XA CN114446675A (en) | 2021-12-23 | 2021-12-23 | Preparation method of flexible electrode of supercapacitor, flexible electrode and application thereof |
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| CN114446675A true CN114446675A (en) | 2022-05-06 |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101218174A (en) * | 2005-09-29 | 2008-07-09 | 昭和电工株式会社 | Activated carbon and process of making the same |
| CN104934235A (en) * | 2014-03-23 | 2015-09-23 | 东莞市长安东阳光铝业研发有限公司 | Preparation method of super capacitor electrode |
| CN107230555A (en) * | 2017-07-17 | 2017-10-03 | 深圳中科瑞能实业有限公司 | Lithium-ion mixture super capacitor and preparation method thereof |
| CN107578927A (en) * | 2017-09-07 | 2018-01-12 | 陕西科技大学 | A kind of preparation method of polyaniline MOF nano composite material flexible super capacitors |
| CN107633953A (en) * | 2017-09-08 | 2018-01-26 | 西安科技大学 | A kind of multi-layered electrode and its ultracapacitor of preparation |
| CN110718402A (en) * | 2019-09-24 | 2020-01-21 | 江西理工大学 | Flexible and foldable super capacitor and preparation method thereof |
-
2021
- 2021-12-23 CN CN202111584823.XA patent/CN114446675A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101218174A (en) * | 2005-09-29 | 2008-07-09 | 昭和电工株式会社 | Activated carbon and process of making the same |
| CN104934235A (en) * | 2014-03-23 | 2015-09-23 | 东莞市长安东阳光铝业研发有限公司 | Preparation method of super capacitor electrode |
| CN107230555A (en) * | 2017-07-17 | 2017-10-03 | 深圳中科瑞能实业有限公司 | Lithium-ion mixture super capacitor and preparation method thereof |
| CN107578927A (en) * | 2017-09-07 | 2018-01-12 | 陕西科技大学 | A kind of preparation method of polyaniline MOF nano composite material flexible super capacitors |
| CN107633953A (en) * | 2017-09-08 | 2018-01-26 | 西安科技大学 | A kind of multi-layered electrode and its ultracapacitor of preparation |
| CN110718402A (en) * | 2019-09-24 | 2020-01-21 | 江西理工大学 | Flexible and foldable super capacitor and preparation method thereof |
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