CN113801471A - Superfine glass fiber cotton-based flexible electrode material and preparation method thereof - Google Patents
Superfine glass fiber cotton-based flexible electrode material and preparation method thereof Download PDFInfo
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- CN113801471A CN113801471A CN202111150328.8A CN202111150328A CN113801471A CN 113801471 A CN113801471 A CN 113801471A CN 202111150328 A CN202111150328 A CN 202111150328A CN 113801471 A CN113801471 A CN 113801471A
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- 239000003365 glass fiber Substances 0.000 title claims abstract description 94
- 239000007772 electrode material Substances 0.000 title claims abstract description 67
- 229920000742 Cotton Polymers 0.000 title claims abstract description 53
- 238000002360 preparation method Methods 0.000 title claims abstract description 10
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 66
- 229910021389 graphene Inorganic materials 0.000 claims abstract description 46
- 238000000034 method Methods 0.000 claims abstract description 19
- 239000002086 nanomaterial Substances 0.000 claims abstract description 5
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 27
- 239000004020 conductor Substances 0.000 claims description 23
- 238000011065 in-situ storage Methods 0.000 claims description 16
- 239000007788 liquid Substances 0.000 claims description 15
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 10
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- WQZGKKKJIJFFOK-GASJEMHNSA-N Glucose Natural products OC[C@H]1OC(O)[C@H](O)[C@@H](O)[C@@H]1O WQZGKKKJIJFFOK-GASJEMHNSA-N 0.000 claims description 5
- 239000003990 capacitor Substances 0.000 claims description 5
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- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 4
- 229910000272 alkali metal oxide Inorganic materials 0.000 claims description 4
- 238000004070 electrodeposition Methods 0.000 claims description 4
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- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 claims description 2
- 229910021380 Manganese Chloride Inorganic materials 0.000 claims description 2
- GLFNIEUTAYBVOC-UHFFFAOYSA-L Manganese chloride Chemical compound Cl[Mn]Cl GLFNIEUTAYBVOC-UHFFFAOYSA-L 0.000 claims description 2
- KKCBUQHMOMHUOY-UHFFFAOYSA-N Na2O Inorganic materials [O-2].[Na+].[Na+] KKCBUQHMOMHUOY-UHFFFAOYSA-N 0.000 claims description 2
- MQRWBMAEBQOWAF-UHFFFAOYSA-N acetic acid;nickel Chemical compound [Ni].CC(O)=O.CC(O)=O MQRWBMAEBQOWAF-UHFFFAOYSA-N 0.000 claims description 2
- 230000009471 action Effects 0.000 claims description 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 2
- 238000009388 chemical precipitation Methods 0.000 claims description 2
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- ORTQZVOHEJQUHG-UHFFFAOYSA-L copper(II) chloride Chemical compound Cl[Cu]Cl ORTQZVOHEJQUHG-UHFFFAOYSA-L 0.000 claims description 2
- ARUVKPQLZAKDPS-UHFFFAOYSA-L copper(II) sulfate Chemical compound [Cu+2].[O-][S+2]([O-])([O-])[O-] ARUVKPQLZAKDPS-UHFFFAOYSA-L 0.000 claims description 2
- NWFNSTOSIVLCJA-UHFFFAOYSA-L copper;diacetate;hydrate Chemical compound O.[Cu+2].CC([O-])=O.CC([O-])=O NWFNSTOSIVLCJA-UHFFFAOYSA-L 0.000 claims description 2
- 229910052593 corundum Inorganic materials 0.000 claims description 2
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- 239000010439 graphite Substances 0.000 claims description 2
- 230000000640 hydroxylating effect Effects 0.000 claims description 2
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 claims description 2
- 229910052748 manganese Inorganic materials 0.000 claims description 2
- 229940071125 manganese acetate Drugs 0.000 claims description 2
- 239000011565 manganese chloride Substances 0.000 claims description 2
- 235000002867 manganese chloride Nutrition 0.000 claims description 2
- 229940099607 manganese chloride Drugs 0.000 claims description 2
- 229940099596 manganese sulfate Drugs 0.000 claims description 2
- 239000011702 manganese sulphate Substances 0.000 claims description 2
- 235000007079 manganese sulphate Nutrition 0.000 claims description 2
- UOGMEBQRZBEZQT-UHFFFAOYSA-L manganese(2+);diacetate Chemical compound [Mn+2].CC([O-])=O.CC([O-])=O UOGMEBQRZBEZQT-UHFFFAOYSA-L 0.000 claims description 2
- SQQMAOCOWKFBNP-UHFFFAOYSA-L manganese(II) sulfate Chemical compound [Mn+2].[O-]S([O-])(=O)=O SQQMAOCOWKFBNP-UHFFFAOYSA-L 0.000 claims description 2
- 239000000178 monomer Substances 0.000 claims description 2
- 229910052759 nickel Inorganic materials 0.000 claims description 2
- 229940078494 nickel acetate Drugs 0.000 claims description 2
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- 229910000363 nickel(II) sulfate Inorganic materials 0.000 claims description 2
- KBJMLQFLOWQJNF-UHFFFAOYSA-N nickel(ii) nitrate Chemical compound [Ni+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O KBJMLQFLOWQJNF-UHFFFAOYSA-N 0.000 claims description 2
- 239000000126 substance Substances 0.000 claims description 2
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- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 2
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- 238000007605 air drying Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- NUJOXMJBOLGQSY-UHFFFAOYSA-N manganese dioxide Chemical compound O=[Mn]=O NUJOXMJBOLGQSY-UHFFFAOYSA-N 0.000 description 2
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L79/00—Compositions of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing nitrogen with or without oxygen or carbon only, not provided for in groups C08L61/00 - C08L77/00
- C08L79/02—Polyamines
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- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/02—Elements
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- C08K3/041—Carbon nanotubes
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- C08K7/00—Use of ingredients characterised by shape
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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
- H01G11/22—Electrodes
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Abstract
The invention discloses a superfine glass fiber cotton-based flexible electrode and a preparation method thereof, wherein the superfine glass fiber cotton-based flexible supercapacitor electrode comprises the following components: 4-8% of graphene-based conductive nano material and superfine glass fiber cotton. The preparation method of the electrode comprises the following steps: firstly, the surface of the superfine glass fiber cotton is modified, and then the graphene-based conductive nano material is introduced by different methods to prepare the cuttable superfine glass fiber cotton-based flexible electrode with high toughness and good electrochemical performance. The electrode material prepared by the invention has low cost, light weight and high specific capacitance, and has wide prospect in the aspect of application of flexible large-area energy storage devices.
Description
Technical Field
The invention belongs to the technical field of composite functional materials, and particularly relates to a superfine glass fiber cotton-based flexible electrode material and a preparation method thereof.
Background
The super capacitor is used as a practical, efficient and environment-friendly energy storage device. There are many areas where: electric vehicles, diesel locomotives, consumer electronics, wireless communications, industrial instrumentation, military, solar and wind power, and the like have been widely used. In recent years, it has become a sunrise industry in the field of new energy, and has an unprecedented scene of vigorous development in the domestic and foreign markets. However, the industrial development and market application of the super capacitor are still different from those of the battery at present, mainly because the energy density is low, and especially the energy storage density during high-power and large-current charging and discharging can not meet the market demand. To increase the energy density of electrochemical capacitors, not only depends on the improvement of the manufacturing process and production technology, but also needs to continuously develop new electrode materials with high energy density. The invention aims to develop a simple, low-cost and large-area processing method to change conventional glass fiber into a high-performance electrode material so as to meet more and more market demands at present.
Disclosure of Invention
The performance of flexible electrode materials for the current state of the art is related to specific capacitance, porosity, conductivity, and electrochemical stability. When the superfine glass fiber flexible substrate is selected, the load capacity of the subsequent conductive material is improved by utilizing the graphene seed layer so as to increase the specific capacitance and the energy density of the electrode material, the in-situ growth can fully reduce the agglomeration of the graphene and other conductive materials, the available effective specific surface area is improved, the diffusion channel of electrolyte ions is opened, and the electrochemical performance is further improved.
In order to achieve the purpose, the invention provides the following technical scheme:
a superfine glass fiber cotton-based flexible electrode material comprises the following components: 4-8 wt% of graphene-based nano conductive material, and the balance of superfine glass fiber cotton.
Preferably, the superfine glass fiber cotton comprises the following components: SiO 22：56.5～66.5wt％，Al2O3：2.5～7.5wt％，MgO：4.5～8.5wt％，CaO：1.5～4.5wt％，B2O3：3～6.5wt％，Fe2O3+ ZnO + BaO: 4.5 to 7.5 wt%, alkali metal oxide R2O(Na2O+K2O)：8～10.5wt％；
Preferably, the graphene-based nano conductive material is an A-type graphene seed layer, the B-type graphene seed layer is one or more of polyaniline, a carbon nano tube and a metal organic oxide, and the mass of the graphene-based nano conductive material accounts for 2-4% of the total weight of the superfine glass fiber cotton-based flexible electrode material;
preferably, the preparation method of the in-situ synthesis method of the A-type graphene is as follows: h2Reduction, high-temperature GO reduction, microwave heating or laser reduction;
preferably, the in-situ synthesis method of the B-type conductive material is electrochemical deposition, low-temperature controllable in-situ polymerization, a chemical precipitation method, a chemical vapor deposition method and an electrostatic composite method, and the mass of the B-type conductive material accounts for 2-4% of the total weight of the superfine glass fiber cotton-based flexible electrode material.
The preparation method of the superfine glass fiber cotton-based flexible electrode material is characterized by comprising the following steps of:
step 1, weighing a carbon source, dissolving the carbon source in ultrapure water, and preparing a graphene precursor solution of solution A; preparing precursor solutions of other conducting materials of the solution B; a glass fiber modification solution C;
step 2, selecting superfine glass fiber cotton, modifying the surface of the glass fiber through a modifying solution C, cleaning and drying;
step 3, putting the dried glass fiber into the liquid A to grow a graphene seed layer in situ;
step 4, putting the glass fiber loaded with the graphene seed layer into the liquid B, then treating the glass fiber to grow other conductive nano materials in situ, and drying the glass fiber to obtain the superfine glass fiber cotton-based flexible electrode material; .
Preferably, the carbon source of the graphene precursor solution in the solution a in the step 1 is one or more of glucose, a biomass carbon source and graphite oxide.
Preferably, the polyaniline precursor in the solution B in the step 1 is aniline monomer solution
Preferably, the precursor of the liquid B carbon nanotube in step 1 is a carbon tube solution
Preferably, the liquid B metal organic precursor solution of step 1 includes a manganese source: one or more of manganese acetate, manganese sulfate and manganese chloride
Preferably, the liquid B metal organic precursor solution in step 1 includes nickel source selected from one or more of nickel nitrate, nickel sulfate and nickel acetate
Preferably, the liquid B metal organic precursor solution in step 1 includes one or more of copper acetate monohydrate, copper chloride and copper sulfate as copper source
Preferably, the solution C for modifying the surface of the glass fiber in the step 2 is a sodium hydroxide/urea system with the concentration of 1-10mol/L or a hydrochloric acid solution with the concentration of 1-5 mol/L.
Preferably, the superfine glass fibers with different diameters in the step 3 are loaded with a certain amount of graphene in situ, so that more growth sites are provided for the subsequent compounding of the conductive material while the conductive effect is achieved.
Preferably, the solution C for modifying the surface of the glass fiber in the step 3 is a sodium hydroxide/urea system with the concentration of 1-10mol/L or a hydrochloric acid solution with the concentration of 1-5 mol/L. Aims to solve the problem of interface connection between graphene and glass fibers by hydroxylating the surface of the glass fibers and opening silicon-oxygen bonds through surface modification and increase the adhesion stability of the graphene and other conductive materials
Preferably, the drying treatment in the step 4 is drying for 5 +/-1 min on a drying plate at the temperature of 100-115 ℃.
Preferably, the electrode material is characterized in that the area of the electrode material can be controlled according to specific use conditions, and the electrode material can be cut according to requirements.
Preferably, the electrode material is a flexible electrode material based on glass fiber, which can bear daily mechanical action such as random bending, folding, stretching, twisting and the like, and in addition, the glass fiber also has excellent processability and low cost
The invention has the beneficial effects that:
(1) according to the invention, the surface modification of the glass fiber is firstly carried out, so that the loading capacity and the adhesive force of the conductive material on the glass fiber are improved, the glass fiber plays a role in bearing and transferring stress load when the conductive material bears the tension and the pressure, the fibers play a synergistic effect, and the mechanical property of the electrode material is finally improved.
(2) The graphene-based conductive material is synthesized on the superfine glass fiber through in-situ synthesis growth, and the introduction of the graphene seed layer improves the growth sites and the dispersibility of the subsequent conductive material, so that the electrode material has better electrochemical properties including higher specific capacitance, multiplying power property, impedance and cycling stability.
(3) The glass fiber has the advantages of low cost, good chemical corrosion resistance, excellent flexibility, capability of bearing external force effects of arbitrary bending, folding, stretching, twisting and the like, and the electrode material also has excellent processability and improves the application range of the electrode material, and different functional components can be constructed by the electrode material.
Drawings
FIG. 1 is a schematic diagram of a flexible electrode material based on ultra-fine glass fiber cotton;
FIG. 2 is a diagram of a flexible electrode material based on glass microfiber cotton;
FIG. 3 is a scanning electron microscope image of a flexible electrode material based on ultra-fine glass fiber cotton
Detailed Description
The present invention will be further described in the following examples with reference to the accompanying drawings, but the present invention is not limited to the examples, and all similar methods and similar variations using the present invention shall fall within the scope of the present invention.
Example 1
Preparing a solution A: glucose 4g solvent in 50ml deionized water; and B, liquid B: add 46. mu.L of aniline to 40ml of 1mol/L H2SO4In solution; and preparing 2mol/L sodium hydroxide/urea mixed solution from sodium hydroxide, urea and deionized water according to a certain mass ratio. Then, superfine glass fiber with the diameter of 3.0 μm and the diameter of 1.0 μm is selected and added into the solution C to be soaked for 10min for modification, and then the solution C is washed by a large amount of water and dried at 50 ℃. And (2) putting the glass fiber subjected to surface treatment into the solution A, stirring for 10min to ensure that the material is completely impregnated, heating by microwave to obtain a graphene/glass fiber material, further putting the graphene/superfine glass fiber into the solution B, and introducing polyaniline by an in-situ polymerization method. And finally, placing the sample in an air-blast drying oven to be dried for 6min at 100 ℃, and preparing the polyaniline/graphene/glass fiber electrode material. The prepared electrode material has the conductivity of 0.03S/cm and the current density of 1mA/cm2The time-surface capacitance is as high as 1000.32mF/cm2。
Example 2
Preparing a solution A: glucose 6g solvent in 50ml deionized water; and B, liquid B: adding carbon tube into solution of acetone and ethanol at volume ratio of 1:1, and adding 10mgAl (NO)3)3·9H2O; and preparing 6mol/L sodium hydroxide/urea mixed solution from sodium hydroxide, urea and deionized water according to a certain mass ratio. Then, superfine glass fiber with the diameter of 3.0 microns and the diameter of 1.5 microns is selected and added into the solution C to be soaked for 10min for modification, and the solution C is washed by a large amount of water and dried at 50 ℃. And (2) putting the glass fiber subjected to surface treatment into the solution A, stirring for 10min to ensure that the material is completely impregnated, heating by microwave to obtain a graphene/glass fiber material, further putting the graphene/superfine glass fiber into the solution B, and electrodepositing for 30min by using a direct-current power supply to provide constant 14.5V voltage to introduce the carbon nano tube. And finally, placing the sample in a forced air drying oven to dry for 6min at 100 ℃, and preparing the carbon nanotube/graphene/glass fiber electrode material. The conductivity of the carbon nano tube/graphene/glass fiber electrode material is 0.01S/cm, and the maximum surface capacitance can reach 305.8mF/cm when the scanning speed is 2mV/S2And shows good electrochemical performance. At 5mA/cm2After 1000 times of constant current charge-discharge circulation under the current density, the capacitance retention rate is only slightly changed, and the energy density of the further prepared all-solid-state super capacitor can reach 200 mu Wh/cm3。
Example 3
Preparing a solution A: glucose 6g solvent in 50ml deionized water; and B, liquid B: 20mL of 2M Mn C4H6O4·4H2O and 0.2M Na2SO4The mixed solution of (1); and preparing 8mol/L sodium hydroxide/urea mixed solution from sodium hydroxide, urea and deionized water according to a certain mass ratio. Then, superfine glass fiber with the diameter of 3.5 microns and the diameter of 1.5 microns is selected and added into the solution C to be soaked for 10min for modification, and the solution C is washed by a large amount of water and dried at 50 ℃. Adding the glass fiber with the surface treated into the solution A, stirring for 10min to ensure that the material is completely impregnated, heating by microwave to obtain graphene/glass fiber material, further adding the graphene/superfine glass fiber into the solution B, applying a voltage of 1.0V, maintaining the electrodeposition time of 100s, and introducing MnO by using an anodic electrochemical deposition method2Nanosheets. Finally, the sample is placed in a forced air drying oven to be dried for 6min at 100 ℃, and the manganese dioxide/graphene/glass fiber electrode material is prepared. The electrode material has the conductivity of 0.02S/cm and the current density of 1mA/cm2When the capacitance of the electrode reaches 1.55F/cm2. And when the current density increased to 20mA/cm2The capacitance loss of the electrode is only 18.4%, the specific capacity of the device is hardly attenuated after 100 cycles, and the specific capacity can still be maintained at 80% after 200 cycles, which proves that the electrode has very high specific capacity and excellent rate performance.
Finally, it is noted that the above-mentioned preferred embodiments illustrate rather than limit the invention, and that, although the invention has been described in detail with reference to the above-mentioned preferred embodiments, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the scope of the invention as defined by the appended claims.
Claims (24)
1. The superfine glass fiber cotton-based flexible electrode material is characterized by comprising the following components in parts by weight: 4-8% of graphene-based conductive nano material, and the balance of superfine glass fiber cotton.
2. The microglass fiber cotton-based flexible electrode material as claimed in claim 1, wherein the microglass fiber cotton is composed of: SiO 22：56.5～65.5wt％，Al2O3：3～8wt％，MgO：4.5～8.5wt％，CaO：1.5～4.5wt％，B2O3：3～6wt％，Fe2O3+ ZnO + BaO: 4.5 to 5.5 wt.% of an alkali metal oxide R2O(Na2O+K2O)：8～9.5wt％。
3. The superfine glass fiber cotton-based flexible electrode material as claimed in claim 1, wherein the fiber diameter of the superfine glass fiber cotton is normally distributed between 0.6 and 4 μm, the average fiber diameter is 2.2 μm, the fiber length of the superfine glass fiber cotton is normally distributed between 15 and 30mm, and the average fiber length is 20 mm.
4. The superfine glass fiber cotton-based flexible electrode material as claimed in claim 1, wherein the electrode material main body is superfine glass fiber, and the graphene-based nano conductive material is formed by in-situ growth on the surface of the fiber.
5. The microglass-cotton-based flexible electrode material as claimed in claim 1, wherein the microglass fiber cotton is formed into a three-dimensional net-shaped porous structure, and microglass fibers with different diameters are overlapped in a crossing manner.
6. The superfine glass fiber cotton-based flexible electrode material as claimed in claim 1, wherein the graphene-based nano conductive material is a A-type graphene seed layer, B-type graphene is one or more of polyaniline, carbon nanotube and metal organic oxide, and the mass of the graphene-based nano conductive material accounts for 4-8% of the total weight of the superfine glass fiber cotton-based flexible electrode material.
7. The microglass fiber cotton-based flexible electrode material as claimed in claim 1, wherein the graphene-based nano conductive material is closely and uniformly distributed on the microglass fiber.
8. The microglass fiber cotton-based flexible electrode material as claimed in claim 1, wherein the in-situ synthesis method of the A-type graphene comprises H2The method comprises the following steps of reduction, high-temperature reduction of Graphene Oxide (GO), microwave heating and laser reduction, wherein the mass of A-type graphene accounts for 2-4% of the total weight of the superfine glass fiber cotton-based flexible electrode material.
9. The superfine glass fiber cotton-based flexible electrode material as claimed in claim 1, wherein the in-situ synthesis method of the B-type conductive material is electrochemical deposition, low-temperature controllable in-situ polymerization, chemical precipitation, chemical vapor deposition and electrostatic composite method, and the mass of the B-type conductive material accounts for 2-4% of the total weight of the superfine glass fiber cotton-based flexible electrode material.
10. The superfine glass fiber cotton-based flexible electrode material as claimed in claim 1, wherein the graphene material is loaded without changing the three-dimensional network structure of the superfine glass fiber flexible substrate, has abundant porous structures, and has good fabric thermal stability in a high-temperature environment and good chemical stability in water or other solvents.
11. The preparation method of the superfine glass fiber cotton-based flexible electrode material is characterized by comprising the following steps of:
step 1, weighing a carbon source, dissolving the carbon source in ultrapure water, and preparing a liquid A graphene-based precursor solution; preparing precursor solutions of other conducting materials of the solution B;
step 2, selecting superfine glass fiber cotton, modifying the surface of the glass fiber through a modifying solution C, cleaning and drying;
step 3, putting the dried glass fiber into the liquid A to grow a graphene seed layer in situ;
and 4, putting the glass fiber loaded with the graphene seed layer into the liquid B, treating the glass fiber in the liquid B, growing other conductive nano materials in situ, and drying the glass fiber to obtain the superfine glass fiber cotton-based flexible electrode material.
12. The method for preparing the superfine glass fiber cotton-based flexible electrode material as claimed in claim 11, wherein the carbon source of the solution A in the step 1 is one or more of glucose, biomass carbon source and graphite oxide.
13. The method for preparing the superfine glass fiber cotton-based flexible electrode material as claimed in claim 11, wherein the polyaniline precursor in solution B in step 1 is aniline monomer solution.
14. The method for preparing the superfine glass fiber cotton-based flexible electrode material as claimed in claim 11, wherein the precursor of the liquid B carbon nanotube in step 1 is a carbon tube solution.
15. The method for preparing the superfine glass fiber cotton-based flexible electrode material as claimed in claim 11, wherein the liquid B metal organic precursor solution of step 1 comprises a manganese source: one or more of manganese acetate, manganese sulfate and manganese chloride.
16. The method for preparing the superfine glass fiber cotton-based flexible electrode material as claimed in claim 11, wherein the metal organic precursor solution of the solution B in the step 1 comprises one or more of nickel nitrate, nickel sulfate and nickel acetate as a nickel source.
17. The method for preparing the superfine glass fiber cotton-based flexible electrode material as claimed in claim 11, wherein the metal organic precursor solution of the solution B in the step 1 comprises one or more of copper acetate monohydrate, copper chloride and copper sulfate as a copper source.
18. The method for preparing the superfine glass fiber cotton-based flexible electrode material as claimed in claim 11, wherein the glass fiber surface modification C solution of step 2 is a sodium hydroxide/urea system with a concentration of 1-10mol/L or a hydrochloric acid solution with a concentration of 1-5 mol/L. The purpose is to solve the problem of interface connection between graphene and glass fibers by hydroxylating the surface of the glass fibers and opening silicon-oxygen bonds through surface modification, and to increase the adhesion stability of the graphene and other conductive materials.
19. The method for preparing the superfine glass fiber cotton-based flexible electrode material as claimed in claim 11, wherein the superfine glass fibers with different diameters in the step 3 are loaded with a certain amount of graphene in situ, so as to provide more growth sites for the subsequent compounding of conductive materials while achieving the conductive effect.
20. The method for preparing the superfine glass fiber cotton-based flexible electrode material as claimed in claim 11, wherein the drying treatment in step 4 is drying on a drying plate at 100-115 ℃ for 5 ± 1 min.
21. The microglass cotton-based flexible electrode material as claimed in claim 11, wherein the electrode material can be cut according to the requirements by controlling the area of the electrode material according to specific use conditions.
22. The electrode prepared by the method for preparing the superfine glass fiber cotton-based flexible electrode material as claimed in claim 11, wherein the electrode material has better electrochemical properties including higher specific capacitance, rate property, impedance and cycling stability.
23. The electrode prepared by the preparation method of the superfine glass fiber cotton-based flexible electrode material according to claim 11, wherein the electrode material based on the glass fiber flexible electrode material can bear daily mechanical actions such as arbitrary bending, folding, stretching, twisting and the like, and in addition, the glass fiber has excellent processability and low cost.
24. The electrode prepared by the preparation method of the superfine glass fiber cotton-based flexible electrode material as claimed in claim 11, wherein the electrode material can be used for constructing different functional components, such as super capacitors, sensors, actuators, transistors and the like, and is used in the fields of energy collection and storage, sensing, medical treatment and the like.
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| CN101894679A (en) * | 2009-05-20 | 2010-11-24 | 中国科学院金属研究所 | Method for preparing graphene-based flexible super capacitor and electrode material thereof |
| CN108109854A (en) * | 2017-11-24 | 2018-06-01 | 西安工业大学 | A kind of preparation method of high stability electrode available for ultracapacitor |
| CN113387416A (en) * | 2021-04-20 | 2021-09-14 | 云南华谱量子材料有限公司 | Graphene composite photocatalytic glass fiber electrode material and preparation method thereof |
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| CN101894679A (en) * | 2009-05-20 | 2010-11-24 | 中国科学院金属研究所 | Method for preparing graphene-based flexible super capacitor and electrode material thereof |
| CN108109854A (en) * | 2017-11-24 | 2018-06-01 | 西安工业大学 | A kind of preparation method of high stability electrode available for ultracapacitor |
| CN113387416A (en) * | 2021-04-20 | 2021-09-14 | 云南华谱量子材料有限公司 | Graphene composite photocatalytic glass fiber electrode material and preparation method thereof |
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