CN108428567A - A kind of preparation method of graphene-based series connection linear supercapacitor - Google Patents
A kind of preparation method of graphene-based series connection linear supercapacitor Download PDFInfo
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- 229910021389 graphene Inorganic materials 0.000 title claims abstract description 47
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 45
- 238000002360 preparation method Methods 0.000 title claims abstract description 25
- 238000009413 insulation Methods 0.000 claims abstract description 17
- 239000003792 electrolyte Substances 0.000 claims abstract description 8
- 239000002131 composite material Substances 0.000 claims abstract description 5
- 238000000034 method Methods 0.000 claims description 17
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 claims description 8
- 239000000835 fiber Substances 0.000 claims description 8
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 6
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 claims description 6
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 6
- 238000013019 agitation Methods 0.000 claims description 5
- 239000000126 substance Substances 0.000 claims description 5
- NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonia chloride Chemical compound [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 claims description 4
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 4
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 claims description 4
- WCUXLLCKKVVCTQ-UHFFFAOYSA-M Potassium chloride Chemical compound [Cl-].[K+] WCUXLLCKKVVCTQ-UHFFFAOYSA-M 0.000 claims description 4
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 claims description 4
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 claims description 4
- 229960000583 acetic acid Drugs 0.000 claims description 4
- 239000002253 acid Substances 0.000 claims description 4
- 239000008367 deionised water Substances 0.000 claims description 4
- 229910021641 deionized water Inorganic materials 0.000 claims description 4
- 239000006185 dispersion Substances 0.000 claims description 4
- 238000001035 drying Methods 0.000 claims description 4
- 239000012362 glacial acetic acid Substances 0.000 claims description 4
- FGIUAXJPYTZDNR-UHFFFAOYSA-N potassium nitrate Chemical compound [K+].[O-][N+]([O-])=O FGIUAXJPYTZDNR-UHFFFAOYSA-N 0.000 claims description 4
- VWDWKYIASSYTQR-UHFFFAOYSA-N sodium nitrate Chemical compound [Na+].[O-][N+]([O-])=O VWDWKYIASSYTQR-UHFFFAOYSA-N 0.000 claims description 4
- 239000012209 synthetic fiber Substances 0.000 claims description 4
- 229920002994 synthetic fiber Polymers 0.000 claims description 4
- 238000005406 washing Methods 0.000 claims description 4
- 238000001816 cooling Methods 0.000 claims description 3
- 238000002484 cyclic voltammetry Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 claims description 3
- 238000010291 electrical method Methods 0.000 claims description 3
- 235000019441 ethanol Nutrition 0.000 claims description 3
- 238000011946 reduction process Methods 0.000 claims description 3
- NWZSZGALRFJKBT-KNIFDHDWSA-N (2s)-2,6-diaminohexanoic acid;(2s)-2-hydroxybutanedioic acid Chemical compound OC(=O)[C@@H](O)CC(O)=O.NCCCC[C@H](N)C(O)=O NWZSZGALRFJKBT-KNIFDHDWSA-N 0.000 claims description 2
- DIIIISSCIXVANO-UHFFFAOYSA-N 1,2-Dimethylhydrazine Chemical compound CNNC DIIIISSCIXVANO-UHFFFAOYSA-N 0.000 claims description 2
- 229920002972 Acrylic fiber Polymers 0.000 claims description 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 claims description 2
- 229920000742 Cotton Polymers 0.000 claims description 2
- 239000004952 Polyamide Substances 0.000 claims description 2
- 239000004372 Polyvinyl alcohol Substances 0.000 claims description 2
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims description 2
- 229920004933 Terylene® Polymers 0.000 claims description 2
- 229910000147 aluminium phosphate Inorganic materials 0.000 claims description 2
- 235000019270 ammonium chloride Nutrition 0.000 claims description 2
- 239000003638 chemical reducing agent Substances 0.000 claims description 2
- 238000000840 electrochemical analysis Methods 0.000 claims description 2
- IKDUDTNKRLTJSI-UHFFFAOYSA-N hydrazine monohydrate Substances O.NN IKDUDTNKRLTJSI-UHFFFAOYSA-N 0.000 claims description 2
- XQHAGELNRSUUGU-UHFFFAOYSA-M lithium chlorate Chemical compound [Li+].[O-]Cl(=O)=O XQHAGELNRSUUGU-UHFFFAOYSA-M 0.000 claims description 2
- 150000002989 phenols Chemical class 0.000 claims description 2
- 229920002647 polyamide Polymers 0.000 claims description 2
- 239000005020 polyethylene terephthalate Substances 0.000 claims description 2
- 229920002451 polyvinyl alcohol Polymers 0.000 claims description 2
- 239000001103 potassium chloride Substances 0.000 claims description 2
- 235000011164 potassium chloride Nutrition 0.000 claims description 2
- 235000011118 potassium hydroxide Nutrition 0.000 claims description 2
- 239000004323 potassium nitrate Substances 0.000 claims description 2
- 235000010333 potassium nitrate Nutrition 0.000 claims description 2
- OTYBMLCTZGSZBG-UHFFFAOYSA-L potassium sulfate Chemical compound [K+].[K+].[O-]S([O-])(=O)=O OTYBMLCTZGSZBG-UHFFFAOYSA-L 0.000 claims description 2
- 229910052939 potassium sulfate Inorganic materials 0.000 claims description 2
- 235000011151 potassium sulphates Nutrition 0.000 claims description 2
- 239000003755 preservative agent Substances 0.000 claims description 2
- 230000002335 preservative effect Effects 0.000 claims description 2
- 239000011780 sodium chloride Substances 0.000 claims description 2
- 235000002639 sodium chloride Nutrition 0.000 claims description 2
- 239000004317 sodium nitrate Substances 0.000 claims description 2
- 235000010344 sodium nitrate Nutrition 0.000 claims description 2
- 229910052938 sodium sulfate Inorganic materials 0.000 claims description 2
- 235000011152 sodium sulphate Nutrition 0.000 claims description 2
- 229910052717 sulfur Inorganic materials 0.000 claims description 2
- 239000011593 sulfur Substances 0.000 claims description 2
- 210000002268 wool Anatomy 0.000 claims description 2
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 claims 1
- BFNBIHQBYMNNAN-UHFFFAOYSA-N ammonium sulfate Chemical compound N.N.OS(O)(=O)=O BFNBIHQBYMNNAN-UHFFFAOYSA-N 0.000 claims 1
- 229910052921 ammonium sulfate Inorganic materials 0.000 claims 1
- 235000011130 ammonium sulphate Nutrition 0.000 claims 1
- 150000001875 compounds Chemical class 0.000 claims 1
- 238000005538 encapsulation Methods 0.000 claims 1
- 229910017604 nitric acid Inorganic materials 0.000 claims 1
- 239000011149 active material Substances 0.000 abstract description 2
- 229920001940 conductive polymer Polymers 0.000 description 5
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 3
- 239000003990 capacitor Substances 0.000 description 3
- 239000002322 conducting polymer Substances 0.000 description 3
- 230000005611 electricity Effects 0.000 description 3
- 239000011245 gel electrolyte Substances 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 229920000297 Rayon Polymers 0.000 description 2
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 description 2
- HSFWRNGVRCDJHI-UHFFFAOYSA-N alpha-acetylene Natural products C#C HSFWRNGVRCDJHI-UHFFFAOYSA-N 0.000 description 2
- 239000000084 colloidal system Substances 0.000 description 2
- 239000007772 electrode material Substances 0.000 description 2
- 238000005868 electrolysis reaction Methods 0.000 description 2
- -1 polyparaphenylene Polymers 0.000 description 2
- 238000001338 self-assembly Methods 0.000 description 2
- PAWQVTBBRAZDMG-UHFFFAOYSA-N 2-(3-bromo-2-fluorophenyl)acetic acid Chemical compound OC(=O)CC1=CC=CC(Br)=C1F PAWQVTBBRAZDMG-UHFFFAOYSA-N 0.000 description 1
- 229920000265 Polyparaphenylene Polymers 0.000 description 1
- 150000001336 alkenes Chemical class 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000009954 braiding Methods 0.000 description 1
- 239000003575 carbonaceous material Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 125000002534 ethynyl group Chemical group [H]C#C* 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 239000011259 mixed solution Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229920001197 polyacetylene Polymers 0.000 description 1
- 229920000767 polyaniline Polymers 0.000 description 1
- 229920000123 polythiophene Polymers 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 238000004832 voltammetry Methods 0.000 description 1
- 238000009941 weaving Methods 0.000 description 1
- 238000002166 wet spinning Methods 0.000 description 1
Classifications
-
- 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
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Electric Double-Layer Capacitors Or The Like (AREA)
Abstract
The invention discloses a kind of preparation methods of graphene-based series connection linear supercapacitor, it is characterized in that, make yarn part conductive using interruption composite conducting active material, to form the yarn of continuous insulation and conducting interval arrangement, coated at insulative yarn colloidal electrolyte can direct-assembling at multiple ultracapacitor Tandem devices.The device volume is small, and output voltage is high, and flexible, and preparation process is simple, easily operated.
Description
Technical field
The present invention relates to a kind of preparation methods of graphene-based series connection linear supercapacitor, and in particular to one kind is continuously led
The preparation method of electricity-insulation interruption yarn and superelevation output voltage threadiness ultracapacitor, belongs to weaving and electrochemical techniques neck
Domain.
Background technology
In recent years, wearable device rapid development, and intelligent skin, health supervision, can the fields exhibition such as drawing-off circuit
Reveal wide application prospect, therefore the energy source supplied power for is particularly important.Rechargeable battery is as energy storage device
Part, the energy density of Yin Qigao and find broad application, but low power density and poor stable circulation performance are limiting
Its development, and it is flexible poor, uses in wearable electronic device and is restricted above.Linear supercapacitor is as a kind of soft
Property energy source, it is light, power density is high, have extended cycle life, is small, it is soft knit, however with battery or plate condenser phase
Than the low energy density of linear supercapacitor limits it and further applies.
For ultracapacitor, energy density depends primarily on specific capacitance and potential window range, in order to improve its electricity
Gesture window can integrate multiple devices in series.There is scholar by the way that the conductive polymer fibers of single-length are spirally wound on elasticity
On yarn, a portion coats interior electrode of the gel electrolyte as first ultracapacitor, remainder as conducting wire,
A conductive polymer fibers part for one double length is wrapped in outside the interior electrode of first ultracapacitor and is used as external electrode,
Remainder is spirally wound on the elastomeric yarn.Equally a part of surface coating of the conducting polymer remainder of the double length
Interior electrode of the gel electrolyte as second ultracapacitor, remainder connect two adjacent super capacitors as conducting wire
Device.This step is repeated, then elastic gel electrolyte is coated on every section lead surface, you can it is concatenated to obtain multiple ultracapacitors
Linear supercapacitor group integration device (CN106592009).
So far, conductive and insulated part is formed directly on an one thread, then is coated electrolyte in insulation position and be made
Ultracapacitor, the series connection integrated device of formation is flexible, can knit and method that output voltage is high has not yet to see report, the preparation side
Method is easy to operate, at low cost, therefore can be widely applied to linear supercapacitor field.
Invention content
The technical problem to be solved by the present invention is to：Existing ultracapacitor preparation process is complicated, it is flexible it is poor, can not knit,
The disadvantages such as volume is big, output voltage is low.
To solve the above-mentioned problems, the technical solution adopted by the present invention is：A kind of linear super capacitor of graphene-based series connection
The preparation method of device, which is characterized in that make yarn part conductive using interruption composite conducting active material, it is continuous to be formed
The arrangement of insulation and conducting interval yarn, coated at insulative yarn colloidal electrolyte can direct-assembling at multiple super electricity
Container Tandem devices.
Preferably, above-mentioned preparation method includes the following steps：
Step 1)：Graphene oxide is prepared using Hummers methods, graphene oxide dispersion magnetic agitation obtained is dense
It is reduced to gel, is transferred to spare in culture dish；
Step 2)：Insulative yarn S-shaped is wound on hollow, rectangular holder, graphene oxide is immersed into the lower end of holder
In, it is taken out after 30-60 minutes, the graphene oxide that removal floats on surface is washed with deionized, is put into 30-50 DEG C of baking oven and dries
It is dry；It repeats 2-10 times, make graphene oxide fully and is equably attached to insulative yarn surface；
Step 3)：Graphene oxide long filament obtained is subjected to local reduction, continuous insulation is made and is arranged with conducting interval
The yarn of cloth；
Step 4)：Colloidal electrolyte is coated into continuous insulation and the insulation position of the yarn of conducting interval arrangement, stand 12-
After 24 hours dry, graphene-based series connection linear supercapacitor is made.
It is highly preferred that the temperature of magnetic agitation is 40 DEG C in the step 1), and it is excessively high, graphene oxide can be caused to be carbonized,
Too low then moisture evaporation speed is slow.
It is highly preferred that the material of holder is wire in the step 2), insulation is wound again after the package preservative film of surface
Yarn avoids wire surface oxide contaminant yarn；The material of insulative yarn is natural fiber or synthetic fibers.
It is highly preferred that the natural fiber is cotton, wool or silk；Synthetic fibers are terylene, polyamide fibre or acrylic fibers.
It is highly preferred that the wide 3-5mm of holder in the step 2), the tip lengths immersed in electrical conductive activities substance are 1-
2mm.Using superfine and have the wire of certain strength that holder is made so that yarn is reduced with holder contact portion, reduces holder
Influence to graphene oxide self assembly, and interruption length of yarn can be reduced, shorten ion transportation range, reduce inefficient length,
Improve output voltage density.
It is highly preferred that using laser, direct-reduction process or other method redox graphenes in the step 3).May be used also
To use other restoring method, but it should be noted the structure that yarn cannot be destroyed while redox graphene, i.e., yarn is whole
Property and partial insulating properties need to be protected.
It is highly preferred that the reducing agent that the direct-reduction process uses is hydrazine hydrate, phenols, dimethylhydrazine or sulfur-bearing chemical combination
Object.
It is highly preferred that the reduction method is specially：Insulative yarn is suspended in HI acid and glacial acetic acid, and is sealed place
Reason；Beaker, which is put into 40 DEG C of oil bath pan, to react 24-48 hours, is taken out after cooling, is with deionized water and ethyl alcohol washing and drying
It can.Using the mixed solution of high-temperature heating HI acid and glacial acetic acid, using steam reduction graphene oxide, graphene obtained/viscous
Glue yarn impedance is smaller, and electric conductivity improves.
It is highly preferred that the colloidal electrolyte in the step 4) is potassium hydroxide, sodium chloride, potassium chloride, ammonium chloride, sulfuric acid
Any one or a few in ammonium, sodium sulphate, potassium sulfate, ammonium nitrate, sodium nitrate, potassium nitrate, sulfuric acid, phosphoric acid, hydrochloric acid and lithium chlorate
Polyvinyl alcohol water solution；Graphene-based series connection linear supercapacitor obtained is through electro-chemical test, specially cyclic voltammetric
Method (CV) or crossing current charge and discharge electrical method (GCD)；Wherein, sweep speed is 0.005~100V/s in cyclic voltammetry, charge and discharge of flowing over
Current density is 0.1~1000mA/cm in method2。
Graphene in the present invention can also use other electrical conductive activities substances, such as conducting polymer composite, metal material
Material or carbon-based material, polyacetylene can be selected in conducting polymer composite, polyaniline, poly- give a tongue-lashing are coughed up, polythiophene, polyparaphenylene's acetylene or gather
To benzene.
Compared with prior art, the beneficial effects of the present invention are：
1, preparation method is quick and easy, easy to spread；
2, prepare continuous conduction-insulation gap yarn it is high, flexible as electrode material output voltage, can directly into
Row braiding；
3, thus yarn is excellent as ultracapacitor chemical property made of electrode material, it is contemplated that in wearable field
It is with a wide range of applications.
Description of the drawings
Fig. 1 is that (current density is for the comparison diagram of unit piece and the charge and discharge time of four Tandem devices in embodiment 1
0.1mA/cm2)。
Specific implementation mode
In order to make the present invention more obvious and understandable, it is hereby described in detail below with preferred embodiment.
Embodiment 1
A kind of preparation method of superelevation output voltage threadiness ultracapacitor, includes the following steps：
Prepare gel：Graphene oxide is prepared using Hummers methods, mass fraction obtained is aoxidized for 1~5mg/mL
Graphene dispersing solution magnetic agitation at 40 DEG C, is concentrated into gel, is transferred to spare in 60mm culture dishes.
Self assembly：Viscose yarn S-shaped is wound on homemade hollow, rectangular holder, the wide 5mm of holder, concentration is immersed in lower end
Graphene oxide in 2mm, taken out after 30 minutes, be put into 40 DEG C of baking ovens and dry after deionized water washing.It is repeated 4 times, makes oxygen
Graphite alkene is abundant and is equably attached to viscose yarn surface.
Reduction：Yarn obtained is suspended in the 300mL beakers of 2mLHI acid and 5mL glacial acetic acid, and is sealed place
Reason.Beaker, which is put into 40 DEG C of oil bath pans, to react 24 hours, takes out after cooling, with deionized water and ethyl alcohol washing and drying, thus makes
At continuous insulation-conducting interval yarn.
Ultracapacitor assembling test：Colloid electrolysis is coated in the insulation position of continuous insulation-conducting interval yarn of preparation
Liquid is made superelevation output voltage threadiness ultracapacitor and is tested after standing is dried for 12-24 hours, test result such as Fig. 1
It is shown.
As shown in Figure 1, as ultracapacitor serial number increases, assembly device overall output voltage increases, says therewith
The serial connected super capacitor globality that bright this method is obtained is good, can reach output HIGH voltage by increasing serial number
Purpose.
Embodiment 2
A kind of preparation method of superelevation output voltage threadiness ultracapacitor, includes the following steps：
It prepares：Graphene oxide is prepared using Hummers methods, by the graphene oxide that mass fraction obtained is 2mg/ml
Dispersion liquid is transferred to spare in 60mm culture dishes.Long filament is made by wet spinning process in graphene oxide dispersion, by letter
The dry drying of (40~60 DEG C) of single low temperature, obtains continuous pure zirconia graphene long filament.
Reduction：Graphene oxide long filament obtained is restored with local laser, continuous conduction-insulation gap stone is thus made
Black alkene yarn.
Ultracapacitor assembling test：Colloid electrolysis is coated in the insulation position of continuous conduction-insulation gap yarn of preparation
Liquid is made superelevation output voltage threadiness ultracapacitor and is tested after standing is dried for 12-24 hours.
Test result is same as Example 1, as concatenated supercapacitors increase, assembly device overall output electricity
Pressure increases therewith.
Claims (10)
1. a kind of preparation method of graphene-based series connection linear supercapacitor, which is characterized in that lived using interruption composite conducting
Property material and keep yarn part conductive, to form the yarn of continuous insulation and conducting interval arrangement, applied at insulative yarn
Upper colloidal electrolyte can direct-assembling at multiple ultracapacitor Tandem devices.
2. the preparation method of graphene-based series connection linear supercapacitor as described in claim 1, which is characterized in that including with
Lower step：
Step 1)：Graphene oxide is prepared using Hummers methods, graphene oxide dispersion magnetic agitation obtained is concentrated into
Gel is transferred to spare in culture dish；
Step 2)：Insulative yarn S-shaped is wound on hollow, rectangular holder, the lower end of holder is immersed in graphene oxide, 30-
It takes out after sixty minutes, the graphene oxide that removal floats on surface is washed with deionized, is put into 30-50 DEG C of baking oven and dries；Weight
It is 2-10 times multiple, make graphene oxide fully and is equably attached to insulative yarn surface；
Step 3)：Graphene oxide long filament obtained is subjected to local reduction, continuous insulation and conducting interval arrangement is made
Yarn；
Step 4)：Colloidal electrolyte is coated into continuous insulation and the insulation position of the yarn of conducting interval arrangement, it is small to stand 12-24
When dry after, graphene-based series connection linear supercapacitor is made.
3. the preparation method of graphene-based series connection linear supercapacitor as claimed in claim 2, which is characterized in that the step
It is rapid 1) in magnetic agitation temperature be 40 DEG C.
4. the preparation method of graphene-based series connection linear supercapacitor as claimed in claim 2, which is characterized in that the step
It is rapid 2) in holder material be wire, surface package preservative film after wind insulative yarn again；The material of insulative yarn is day
Right fiber or synthetic fibers.
5. the preparation method of graphene-based series connection linear supercapacitor as claimed in claim 4, which is characterized in that the day
Right fiber is cotton, wool or silk；Synthetic fibers are terylene, polyamide fibre or acrylic fibers.
6. the preparation method of graphene-based series connection linear supercapacitor as claimed in claim 2, which is characterized in that the step
It is rapid 2) in the wide 3-5mm of holder, immerse electrical conductive activities substance in tip lengths be 1-2mm.
7. the preparation method of graphene-based series connection linear supercapacitor as claimed in claim 2, which is characterized in that the step
It is rapid 3) middle using laser, direct-reduction process or other method redox graphenes.
8. the preparation method of graphene-based series connection linear supercapacitor as claimed in claim 7, which is characterized in that described straight
The reducing agent that reduction method uses is connect as hydrazine hydrate, phenols, dimethylhydrazine or sulfur-containing compound.
9. the preparation method of graphene-based series connection linear supercapacitor as claimed in claim 7, which is characterized in that described to go back
Former method is specially：Insulative yarn is suspended in HI acid and glacial acetic acid, and carries out encapsulation process；Beaker is put into 40 DEG C of oil bath pan
Middle reaction 24-48 hours is taken out after cooling, with deionized water and ethyl alcohol washing and drying.
10. the preparation method of graphene-based series connection linear supercapacitor as claimed in claim 2, which is characterized in that described
Colloidal electrolyte in step 4) is potassium hydroxide, sodium chloride, potassium chloride, ammonium chloride, ammonium sulfate, sodium sulphate, potassium sulfate, nitric acid
The polyvinyl alcohol water solution of any one or a few in ammonium, sodium nitrate, potassium nitrate, sulfuric acid, phosphoric acid, hydrochloric acid and lithium chlorate；It is made
Graphene-based series connection linear supercapacitor through electro-chemical test, specially cyclic voltammetry or crossing current charge and discharge electrical method；Wherein,
Sweep speed is 0.005~100V/s in cyclic voltammetry, and current density is 0.1~1000mA/cm in the charge and discharge electrical method that flows over2。
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103594251A (en) * | 2013-11-10 | 2014-02-19 | 浙江大学 | Graphene fiber super capacitor preparing method |
| CN104916453A (en) * | 2015-04-17 | 2015-09-16 | 浙江大学 | Coaxial graphene fiber supercapacitor and manufacturing method thereof |
| CN105428090A (en) * | 2015-12-13 | 2016-03-23 | 复旦大学 | Fibrous super capacitor possessing high output voltage and manufacturing method thereof |
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2018
- 2018-03-13 CN CN201810204410.6A patent/CN108428567B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103594251A (en) * | 2013-11-10 | 2014-02-19 | 浙江大学 | Graphene fiber super capacitor preparing method |
| CN104916453A (en) * | 2015-04-17 | 2015-09-16 | 浙江大学 | Coaxial graphene fiber supercapacitor and manufacturing method thereof |
| CN105428090A (en) * | 2015-12-13 | 2016-03-23 | 复旦大学 | Fibrous super capacitor possessing high output voltage and manufacturing method thereof |
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| YUAN LIANG,ET AL.: ""Series of in-fiber graphene supercapacitors for flexible wearable devices"", 《J. MATER. CHEM. A》 * |
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