CN103151184A - Method for manufacturing electrode slice of electrochemical capacitor - Google Patents
Method for manufacturing electrode slice of electrochemical capacitor Download PDFInfo
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- CN103151184A CN103151184A CN2013101128760A CN201310112876A CN103151184A CN 103151184 A CN103151184 A CN 103151184A CN 2013101128760 A CN2013101128760 A CN 2013101128760A CN 201310112876 A CN201310112876 A CN 201310112876A CN 103151184 A CN103151184 A CN 103151184A
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Abstract
The embodiment of the invention discloses a method for manufacturing an electrode slice of an electrochemical capacitor. The method comprises the steps of: dissolving 3,4-ethylenedioxythiophene monomer and a carbon nano tube in a first solvent to obtain first solution; dissolving an oxidizing agent and graphene in a second solvent to obtain second solution; mixing the first solution and the second solution and reacting to generate a poly(3,4-ethylenedioxythiophene)-graphene-carbon nano tube three-phase mixture; and then mixing the three-phase mixture powder with acetylene black and an adhesive to prepare polymer slurry, and pressing the polymer slurry into the electrode slice. The method disclosed by the embodiment of the invention is simple and convenient to operate; and the prepared electrode slice comprises the poly(3,4-ethylenedioxythiophene)-graphene-carbon nano tube three-phase mixture and is high in specific capacity.
Description
Technical field
The present invention relates to the electrochemical capacitor field, especially relate to a kind of method of making the electrochemical capacitor electrode sheet.
Background technology
Electrochemical capacitor also is ultracapacitor, is a kind of novel energy-storing device between battery and traditional capacitor, has high-energy-density, high power density, discharges and recharges the characteristics such as rapid, that the life-span is long, has been subject to extensive concern both domestic and external.Electrochemical capacitor has been applied to the electrical source of power of electric automobile at present; Stand-by power supply in the fields such as communication, industry; The aspects such as the high impulse current feedback circuit in Aeronautics and Astronautics, national defence.
Electrochemical capacitor mainly is divided into double electric layer electrochemical capacitors and the large kind of Faraday pseudo-capacitance two, and wherein Faraday pseudo-capacitance has the specific capacity than high 10 ~ 100 times of double electric layer capacitor.And Faraday pseudo-capacitance refers to that energy is stored with release, mainly dependence is the two dimension of redox reaction, electrode material or the electric capacity relevant to the electrode charge current potential that accurate two-dimensional space generation electrochemical redox reaction produces in electrochemical capacitor.Research for fake capacitance mainly concentrates on transition metal oxide and the large class of conducting polymer two.Compare with transition metal oxide, conducting polymer had both had the electrical properties of metal and inorganic semiconductor, have again the pliable and tough mechanical performance of organic polymer and machinability, also have the characteristics such as electrochemical redox activity, simultaneously conducting polymer cheap, do not have a problem such as heavy metal pollution, therefore, conducting polymer becomes the electrochemical capacitor electrode optimal selection.
Poly-3,4 ethylenedioxy thiophenes (PEDOT) are that a class of finding at present both can have been carried out the P doping, can adulterate by n again, and electric conductivity, thermal stability be conducting polymer materials preferably, conductance after its doping can reach 1 ~ 500s/cm, have more stable conductance at 150 ℃ of temperature, therefore can be used as the electrode material of function admirable electrochemical capacitor.PEDOT rete by various electrochemical method preparations has higher specific capacity at present, more than can reaching 200F/g, and even can be up to 650F/g.But the PEDOT layer of electrochemical method preparation is only several micron thickness, although specific capacity is larger, actual capacity less (capacity=specific volume * electrode quality) can not be applied to electrochemical capacitor electrode production, only exists only in laboratory research.And the electrode specific capacity that can be used in the PEDOT chemical polymerization method of actual electrochemical capacitor electrode preparation only is 40-80F/g.
Summary of the invention
One of purpose of the present invention is to provide a kind of method of electrode slice of the manufacturing electrochemical capacitor that can make the electrochemical electrode sheet with height ratio capacity.
Technical scheme disclosed by the invention comprises:
A kind of method of making the electrode slice of electrochemical capacitor is provided, has it is characterized in that, having comprised: 3,4 ethylenedioxy thiophene monomers and carbon nano-tube have been dissolved in the first solvent, obtain the first solution; Oxidant and Graphene are dissolved in the second solvent, obtain the second solution; Described the first solution and described the second solution are mixed the acquisition mixed solution, and make described mixed solution stirring reaction under vacuum environment, generate poly-3,4 ethylenedioxy thiophenes-graphene-carbon nano tube three-phase mixture; Extract described three-phase mixture from described mixed solution; Described three-phase mixture is ground into powder, obtains Powdered electrochemical electrode material; Described Powdered electrochemical electrode material is mixed with carbon materials, adhesive, obtain mixed emulsion; With described mixed emulsion heating demulsification type under vacuum environment, obtain polymer paste; Described polymer paste is pressed into electrode slice.
Further, described the first solvent is n-butanol, acetone and isopropyl alcohol.
Further, described the second solvent is n-butanol, acetone and isopropyl alcohol.
Further, described oxidant is to pyrovinic acid iron and ferric trichloride.
Further, described in described the first solution, the weight ratio of 3,4 ethylenedioxy thiophene monomers is 99% to 99.9%, and the weight ratio of described carbon nano-tube is 0.1% to 1%.
Further, described in described the second solution, the weight ratio of oxidant is 99% to 99.9%, and the weight ratio of described Graphene is 0.1 ~ 1%.
Further, when mixing described the first solution and described the second solution, the weight ratio of described the first solution and described the second solution is 1:1 to 1:10.
Further, in described mixed emulsion, the weight ratio of described Powdered electrochemical electrode material, described carbon materials and described adhesive is (60 ~ 95): (4 ~ 30): (1 ~ 10).
Further, described adhesive is ptfe emulsion, Kynoar emulsion or LA133 aqueous binder.
Further, described carbon materials is for being acetylene black, carbon black or graphite.
Method in embodiments of the invention, simple and convenient, and the electrode slice of making comprises poly-3,4 ethylenedioxy thiophenes-graphene-carbon nano tube three-phase mixture, specific capacity is high.
Description of drawings
Fig. 1 is the schematic flow sheet of method of electrode slice of the manufacturing electrochemical capacitor of one embodiment of the invention.
Embodiment
Describe the concrete steps of method of electrode slice of the manufacturing electrochemical capacitor of embodiments of the invention in detail below in conjunction with accompanying drawing.
As shown in Figure 1, in embodiments of the invention, a kind of method of making the electrode slice of electrochemical capacitor comprises step 10, step 12, step 14, step 16, step 18, step 20 and step 22.Describe each step in detail below in conjunction with specific embodiment.
Step 10: preparation the first solution.
In embodiments of the invention, can prepare the first solution with 3,4 ethylenedioxy thiophene monomers and carbon nano-tube (CNTS).For example, 3,4 ethylenedioxy thiophene monomers and carbon nano-tube are dissolved in the first solvent, and 3,4 ethylenedioxy thiophene monomers and carbon nano-tube are fully disperseed in the first solvent, thereby obtain the first solvent.
In embodiments of the invention, the first solvent can be any suitable solvent, and for example, in an embodiment, the first solvent can be n-butanol, acetone and isopropyl alcohol etc. or any other solvent that is fit to.
In embodiments of the invention, can use any suitable method that 3,4 ethylenedioxy thiophene monomers and carbon nano-tube are fully disperseed in the first solvent, for example, use ultrasonic method, ultrasonic more than 2 hours.
In embodiments of the invention, in this first solution, the content of 3,4 ethylenedioxy thiophene monomers and carbon nano-tube can be according to the actual conditions flexible choice.For example, in an embodiment, in the first solution, the weight ratio of 3,4 ethylenedioxy thiophene monomers can be 99% to 99.9%, and the weight ratio of carbon nano-tube can be 0.1% to 1%.
Step 12: preparation the second solution.
In embodiments of the invention, can prepare the second solution with oxidant and Graphene (GN).For example, oxidant and Graphene are dissolved in the second solvent, and oxidant and Graphene are fully disperseed in the second solvent, thereby obtain the second solution.
In embodiments of the invention, oxidant can be any oxidant that is suitable for making 3,4 ethylenedioxy thiophene monomer polymerization reaction take places.For example, in an embodiment, oxidant can be to pyrovinic acid iron and ferric trichloride.
In embodiments of the invention, the second solvent can be any suitable solvent, and for example, in an embodiment, the second solvent can be n-butanol, acetone and isopropyl alcohol etc. or any other solvent that is fit to.
In embodiments of the invention, in this second solution, the content of oxidant and Graphene can be according to the actual conditions flexible choice.For example, in an embodiment, in the second solution, the weight ratio of oxidant can be 99% to 99.9%, and the weight ratio of Graphene can be 0.1% to 1%.
In embodiments of the invention, can use any suitable method that oxidant and Graphene are fully disperseed in the first solvent, for example, use ultrasonic method, ultrasonic more than 2 hours.
In embodiments of the invention, the execution sequence of step 10 and step 12 is restriction not.
Step 14: form mixed solution and stirring reaction and generate three-phase mixture.
after obtaining the first solution and the second solution, in step 14, the first solution and the second solution are mixed, obtain mixed solution, and make this mixed solution stir under vacuum environment and react, at this moment, in this mixed solution, under the effect of oxidant, 3, 4 ethylenedioxy thiophene monomer polymerization reaction take places generate poly-3, 4 ethylenedioxy thiophenes, and the fully dispersion in mixed solution due to Graphene and carbon nano-tube, therefore Graphene and carbon nano-tube will be evenly step by step poly-3, on the skeleton of 4 ethylenedioxy thiophenes, thereby generate poly-3, 4 ethylenedioxy thiophenes-graphene-carbon nano tube three-phase mixture.
In embodiments of the invention, when mixing the first solution and the second solution, can mix in accordance with the appropriate ratio the first solution and the second solution, here, the ratio of the first solution and the second solution can be selected according to actual conditions.For example, in an embodiment, when mixing the first solution and the second solution, the weight ratio of the first solution and the second solution can be 1:1 to 1:10.
In embodiments of the invention, aforesaid vacuum environment can be the vacuum environment that is fit to, and for example, can be that vacuum degree is less than the vacuum environment of 10 handkerchiefs (Pa).
In embodiments of the invention, in order to impel the generation of the reaction in mixed solution, can use any suitable method to mix the solution regular hour.For example, in an embodiment, can use the method for magnetic agitation to mix solution more than 4 hours.
Step 16: extract three-phase mixture.
After reaction in step 14 is completed, in step 16, extract the three-phase mixture that generates from mixed solution.Here, can use any suitable method to extract the three-phase mixture that generates from mixed liquor.For example, in an embodiment, use the vacuum filtration device three-phase mixture that suction filtration goes out to generate from mixed solution.
In embodiments of the invention, after extracting three-phase mixture, can also comprise and cleaning and dry this three-phase mixture.
For example, in an embodiment, can be by the vacuum filtration device with the three-phase mixture suction filtration out, the three-phase mixture that suction filtration goes out is generally filter cake shape; Then clean the three-phase mixture filter cake with acetone or absolute ethyl alcohol etc., until colourless and pH value is faintly acid; Then the three-phase mixture filter cake after cleaning was under the vacuum lower than 10Pa, under 50-80 ℃ dry 2 hours.
Step 18: preparation mixed emulsion.
After obtaining three-phase mixture, in step 18, can prepare mixed emulsion with this three-phase mixture.For example, in an embodiment, can at first the three-phase mixture that obtains be ground into powder, obtain Powdered electrochemical electrode material; Then should mix with carbon materials, adhesive by Powdered electrochemical electrode material, obtain mixed emulsion.
In embodiments of the invention, can use any suitable method that the three-phase mixture that obtains is ground into powder.For example, in an embodiment, can use the agate grinding pot that the three-phase mixture that obtains is ground into powder.
In embodiments of the invention, adhesive can be any can be so that easy shaped electrode and can not affect the adhesive that is fit to of its conductivity.For example, in an embodiment, this adhesive can be ptfe emulsion, Kynoar emulsion or LA133 aqueous binder etc.
In embodiments of the invention, in this mixed emulsion, the ratio of this Powdered electrochemical electrode material, carbon materials and adhesive can be selected according to the needs of actual conditions.For example, in an embodiment, the weight ratio of Powdered electrochemical electrode material, carbon materials and adhesive can be (60 ~ 95): (4 ~ 30): (1 ~ 10).
In embodiments of the invention, carbon materials can be any suitable material, for example, can be acetylene black, carbon black or graphite.
Step 20: prepare polymer paste with mixed emulsion.
After having obtained mixed emulsion, namely available this mixed emulsion prepares polymer paste.For example, in an embodiment, can be with this mixed emulsion heating demulsification type under vacuum environment, thus obtain polymer paste.
In embodiments of the invention, the vacuum degree of the vacuum environment in step 20 and the temperature of heating demulsification type can be selected according to actual conditions.For example, in an embodiment, mixed emulsion can be placed on lower than under the 10Pa vacuum, after 50 ℃ of heating demulsification types, obtain polymer paste.
Step 22: polymer paste is pressed into electrode slice.
After having obtained polymer paste, according to actual conditions, this polymer paste is pressed into electrode slice in position, can obtains the electrode slice of needed electrochemical capacitor.Pressure parameter when thickness of electrode slice, size, compacting etc. all can be selected according to the needs of actual conditions.
In embodiments of the invention, after polymer paste is pressed into electrode slice, can also comprise the subsequent treatment that this electrode slice is carried out, for example dry processing etc.
In the method for embodiments of the invention, before poly-3,4 ethylenedioxy thiophenes of preparation, to be difficult to be scattered in poly-3, carbon nanotube dispersed in 4 ethylenedioxy thiophenes is dispersed in water-soluble relatively poor Graphene in oxidant organic solution in 3,4 ethylenedioxy thiophene monomer organic solutions; Two solution are mixed according to a certain percentage be incorporated in to stir under vacuum again and react fully, thereby obtain poly-3,4 ethylenedioxy thiophenes-graphene-carbon nano tube three-phase mixture, the graphene uniform that has the chip two-dimensional mechanism this moment is distributed on poly-3,4 ethylenedioxy thiophene skeletons, increased the specific surface of conducting polymer, make simultaneously poly-3,4 ethylenedioxy thiophenes be difficult for reuniting, allow the ion in electrolyte more easily enter poly-3, in 4 ethylenedioxy thiophene skeletons, accelerate redox reaction; And the tubular structure of the uniqueness of carbon nano-tube more easily passes through electronics, has increased the conductivity of poly-3,4 ethylenedioxy thiophenes.
According to poly-3 of the method for embodiments of the invention preparation, the height ratio capacity of 4 ethylenedioxy thiophenes-graphene-carbon nano tube three-phase electricity chemical electrode can reach 115.5F/g, with this electrochemical capacitor electrode through 2432 button capacitor assembling tests, present stage is the highest can reach the 2.7V1F specification, energy density can reach 12.66Wh/Kg, and power density can reach 1035.5W/Kg.
The below describes the embodiment of several methods of method of the present invention in detail, and in contrast, has also described the example of two existing methods.
The example one of existing method:
(a) 10gEDOT is dissolved in the 20ml isopropyl alcohol the ultrasonic dispersion of room temperature 0.5h; 100g is in pyrovinic acid iron 200ml n-butanol, the ultrasonic dispersion of room temperature 0.5h;
(b) according to EDPT: to the ratio (weight ratio) of pyrovinic acid iron=1:10, above-mentioned two kinds of liquid are mixed, and under the vacuum degree of 10Pa, magnetic agitation reaction 4h makes the abundant polymerization reaction of solution, obtains PEDOT solution;
(c) by the vacuum filtration device, with PEDOT solution suction filtration out; And clean to colourless with acetone, recording pH value is 6.2; And the filter cake after cleaning is under the vacuum lower than 10Pa, 50 times dry 2h;
(d) utilize the agate grinding pot with the filter cake electrochemical electrode material that is ground into powder; According to electrode material: the ratio of acetylene black: ptfe emulsion=85:10:5 (weight ratio) fully after mix and blend 4h, is positioned over lower than under the 10Pa vacuum, after 50 ℃ of heating demulsification types, obtains polymer paste;
(e) the 1g slurry is compressed on nickel foam, pressing pressure is controlled at 15MPa, regulates compacting tool set and makes thickness of electrode be controlled at 0.2mm.
Like this, obtain sample 1.
The example two of existing method:
(a) 10gEDOT is dissolved in the 20ml isopropyl alcohol the ultrasonic dispersion of room temperature 0.5h; 60g is in pyrovinic acid iron 200ml n-butanol, the ultrasonic dispersion of room temperature 0.5h;
(b) according to EDPT: to the ratio (weight ratio) of pyrovinic acid iron=1:6, above-mentioned two kinds of liquid are mixed, and under the vacuum degree of 10Pa, magnetic agitation reaction 4h makes the abundant polymerization reaction of solution, obtains PEDOT solution;
(c) by the vacuum filtration device, with PEDOT solution suction filtration out; And clean to colourless with acetone, recording pH value is 6.2; And the filter cake after cleaning is under the vacuum lower than 10Pa, 50 times dry 2h;
(d) utilize the agate grinding pot with the three-phase solution filter cake electrochemical electrode material that is ground into powder; According to electrode material: the ratio of acetylene black: ptfe emulsion=85:10:5 (weight ratio) fully after mix and blend 4h, is positioned over lower than under the 10Pa vacuum, after 50 ℃ of heating demulsification types, obtains polymer paste;
(e) the 1g slurry is compressed on nickel foam, pressing pressure is controlled at 15MPa, regulates compacting tool set and makes thickness of electrode be controlled at 0.2mm.
Like this, obtain sample 2.
Embodiments of the invention one:
(a) CNTS with 10gEDOT and 10mg is dissolved in the 20ml isopropyl alcohol, the ultrasonic dispersion of room temperature 3h; 100g is dissolved in the 200ml n-butanol the ultrasonic dispersion of room temperature 3h to pyrovinic acid iron and 100gGN;
(b) according to EDPT: to the ratio (weight ratio) of pyrovinic acid iron=1:10, above-mentioned two kinds of liquid are mixed, and under the vacuum degree of 10Pa, magnetic agitation reaction 4h makes the abundant polymerization reaction of solution, obtains PEDOT-GN-CNTS three-phase mixed solution;
(c) by the vacuum filtration device, with three-phase mixed solution suction filtration out; And clean to colourless with acetone, recording pH value is 5.8; And the filter cake after cleaning is under the vacuum lower than 10Pa, 50 times dry 2h;
(d) utilize the agate grinding pot with the three-phase solution filter cake electrochemical electrode material that is ground into powder; According to electrode material: the ratio of acetylene black: ptfe emulsion=85:10:5 (weight ratio) fully after mix and blend 4h, is positioned over lower than under the 10Pa vacuum, after 50 ℃ of heating demulsification types, obtains polymer paste;
(e) the 1g slurry is compressed on nickel foam, pressing pressure is controlled at 15MPa, regulates compacting tool set and makes thickness of electrode be controlled at 0.2mm.
Like this, obtain sample 3.
Embodiments of the invention two:
(a) CNTS with 10gEDOT and 100mg is dissolved in the 20ml isopropyl alcohol, the ultrasonic dispersion of room temperature 3h; 100g is dissolved in the 200ml n-butanol the ultrasonic dispersion of room temperature 3h to pyrovinic acid iron and 1gGN;
(b) according to EDPT: to the ratio (weight ratio) of pyrovinic acid iron=1:10, above-mentioned two kinds of liquid are mixed, and under the vacuum degree of 10Pa, magnetic agitation reaction 4h makes the abundant polymerization reaction of solution, obtains PEDOT-GN-CNTS three-phase mixed solution;
(c) by the vacuum filtration device, with three-phase mixed solution suction filtration out; And clean to colourless with acetone, recording pH value is 5.8; And the filter cake after cleaning is under the vacuum lower than 10Pa, 50 times dry 2h;
(d) utilize the agate grinding pot with the three-phase solution filter cake electrochemical electrode material that is ground into powder; According to electrode material: the ratio of acetylene black: ptfe emulsion=85:10:5 (weight ratio) fully after mix and blend 4h, is positioned over lower than under the 10Pa vacuum, after 50 ℃ of heating demulsification types, obtains polymer paste;
(e) the 1g slurry is compressed on nickel foam, pressing pressure is controlled at 15MPa, regulates compacting tool set and makes thickness of electrode be controlled at 0.2mm.
Like this, obtain sample 4.
Embodiments of the invention three:
(a) CNTS with 10gEDOT and 10mg is dissolved in the 20ml isopropyl alcohol, the ultrasonic dispersion of room temperature 3h; 60g is dissolved in the 200ml n-butanol the ultrasonic dispersion of room temperature 3h to pyrovinic acid iron and 60mgGN;
(b) according to EDPT: to the ratio (weight ratio) of pyrovinic acid iron=1:6, above-mentioned two kinds of liquid are mixed, and under the vacuum degree of 10Pa, magnetic agitation reaction 4h makes the abundant polymerization reaction of solution, obtains PEDOT-GN-CNTS three-phase mixed solution;
(c) by the vacuum filtration device, with three-phase mixed solution suction filtration out; And clean to colourless with acetone, recording pH value is 5.8; And the filter cake after cleaning is under the vacuum lower than 10Pa, 50 times dry 2h;
(d) utilize the agate grinding pot with the three-phase solution filter cake electrochemical electrode material that is ground into powder; According to electrode material: the ratio of acetylene black: ptfe emulsion=85:10:5 (weight ratio) fully after mix and blend 4h, is positioned over lower than under the 10Pa vacuum, after 50 ℃ of heating demulsification types, obtains polymer paste;
(e) the 1g slurry is compressed on nickel foam, pressing pressure is controlled at 15MPa, regulates compacting tool set and makes thickness of electrode be controlled at 0.2mm.
Like this, obtain sample 5.
Embodiments of the invention four:
(a) CNTS with 10gEDOT and 100mg is dissolved in the 20ml isopropyl alcohol, the ultrasonic dispersion of room temperature 3h; 60g is dissolved in the 200ml n-butanol the ultrasonic dispersion of room temperature 3h to pyrovinic acid iron and 600mgGN;
(b) according to EDPT: to the ratio (weight ratio) of pyrovinic acid iron=1:6, above-mentioned two kinds of liquid are mixed, and under the vacuum degree of 10Pa, magnetic agitation reaction 4h makes the abundant polymerization reaction of solution, obtains PEDOT-GN-CNTS three-phase mixed solution;
(c) by the vacuum filtration device, with three-phase mixed solution suction filtration out; And clean to colourless with acetone, recording pH value is 5.8; And the filter cake after cleaning is under the vacuum lower than 10Pa, 50 times dry 2h;
(d) utilize the agate grinding pot with the three-phase solution filter cake electrochemical electrode material that is ground into powder; According to electrode material: the ratio of acetylene black: ptfe emulsion=85:10:5 (weight ratio) fully after mix and blend 4h, is positioned over lower than under the 10Pa vacuum, after 50 ℃ of heating demulsification types, obtains polymer paste;
(e) the 1g slurry is compressed on nickel foam, pressing pressure is controlled at 15MPa, regulates compacting tool set and makes thickness of electrode be controlled at 0.2mm.
Like this, obtain sample 6.
With above six kinds of samples, the condition test constant current charge-discharge characteristic at 1A/g calculates specific capacity shown in table 1:
Table 1: the specific capacity of different samples
| Sample | Sample 1 | Sample 2 | Sample 3 | Sample 4 | Sample 5 | Sample 6 |
| Specific capacity (F/g) | 37.8 | 9.3 | 57.1 | 70.4 | 95.2 | 115.5 |
From table 1, can find out, pure PEDOT electrode specific capacity is 37.8 and 49.3F/g, and three-phase doped electrode of the present invention has higher specific capacity than pure PEDOT, and along with the increase of GN and CNTS amount, the electrode specific capacity also increases thereupon; When the ratio of EDOT and oxidant is 1:6, GN and CNTS account for respectively oxidant and EDOT 1% the time, the specific capacity of electrochemical capacitor electrode can reach 115.5F/g.
Abovely describe the present invention by specific embodiment, but the present invention is not limited to these specific embodiments.It will be understood by those skilled in the art that and can also make various modifications to the present invention, be equal to replacement, change etc., these conversion all should be within protection scope of the present invention as long as do not deviate from spirit of the present invention.In addition, the different embodiment of above many places described " embodiment " expression can certainly be with its all or part of combination in one embodiment.
Claims (10)
1. a method of making the electrode slice of electrochemical capacitor, is characterized in that, comprising:
3,4 ethylenedioxy thiophene monomers and carbon nano-tube are dissolved in the first solvent, obtain the first solution;
Oxidant and Graphene are dissolved in the second solvent, obtain the second solution;
Described the first solution and described the second solution are mixed the acquisition mixed solution, and make described mixed solution stirring reaction under vacuum environment, generate poly-3,4 ethylenedioxy thiophenes-graphene-carbon nano tube three-phase mixture;
Extract described three-phase mixture from described mixed solution;
Described three-phase mixture is ground into powder, obtains Powdered electrochemical electrode material;
Described Powdered electrochemical electrode material is mixed with carbon materials, adhesive, obtain mixed emulsion;
With described mixed emulsion heating demulsification type under vacuum environment, obtain polymer paste;
Described polymer paste is pressed into electrode slice.
2. the method for claim 1, it is characterized in that: described the first solvent is n-butanol, acetone and isopropyl alcohol.
3. the method for claim 1, it is characterized in that: described the second solvent is n-butanol, acetone and isopropyl alcohol.
4. the method for claim 1 is characterized in that: described oxidant is for to pyrovinic acid iron and ferric trichloride.
5. the method for claim 1, it is characterized in that: described in described the first solution, the weight ratio of 3,4 ethylenedioxy thiophene monomers is 99% to 99.9%, the weight ratio of described carbon nano-tube is 0.1% to 1%.
6. the method for claim 1, it is characterized in that: described in described the second solution, the weight ratio of oxidant is 99% to 99.9%, the weight ratio of described Graphene is 0.1 ~ 1%.
7. the method for claim 1, it is characterized in that: when mixing described the first solution and described the second solution, the weight ratio of described the first solution and described the second solution is 1:1 to 1:10.
8. the method for claim 1, it is characterized in that: in described mixed emulsion, the weight ratio of described Powdered electrochemical electrode material, described carbon materials and described adhesive is (60 ~ 95): (4 ~ 30): (1 ~ 10).
9. the method for claim 1, it is characterized in that: described adhesive is ptfe emulsion, Kynoar emulsion or LA133 aqueous binder.
10. the method for claim 1 is characterized in that: described carbon materials is for being acetylene black, carbon black or graphite.
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| CN106847548A (en) * | 2015-12-02 | 2017-06-13 | 罗伯特·博世有限公司 | For the mixed electrode of hybrid super capacitor |
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Cited By (4)
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| CN104072767A (en) * | 2014-06-20 | 2014-10-01 | 贵州中航聚电科技有限公司 | Method for preparing high specific capacity and low leakage current carbon nanofiber nitrided conductive macromolecule composite material |
| CN104072767B (en) * | 2014-06-20 | 2016-08-03 | 贵州中航聚电科技有限公司 | A kind of preparation method of the carbon nano-fiber nitride type conductive polymer composite of the high and low leakage current of specific capacity |
| CN106847548A (en) * | 2015-12-02 | 2017-06-13 | 罗伯特·博世有限公司 | For the mixed electrode of hybrid super capacitor |
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