CN101847514B - A kind of activated carbon electrodes and there is the ultracapacitor of this electrode - Google Patents
A kind of activated carbon electrodes and there is the ultracapacitor of this electrode Download PDFInfo
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- CN101847514B CN101847514B CN201010129884.2A CN201010129884A CN101847514B CN 101847514 B CN101847514 B CN 101847514B CN 201010129884 A CN201010129884 A CN 201010129884A CN 101847514 B CN101847514 B CN 101847514B
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Abstract
The invention discloses a kind of activated carbon electrodes, there is the ultracapacitor of this electrode.The invention also discloses the method manufacturing described electrode and described ultracapacitor.Described activated carbon electrodes comprises aluminium foil substrate, conductive layer and active carbon material layer.Described conductive layer comprises graphite and acetylene black, have employed the preparation of airless spraying technique; Described absorbent charcoal material layer comprises absorbent charcoal material, acetylene black and adhesive, adopts slurry coating processes or the preparation of diaphragm rolling mill practice.Aluminium foil substrate, conductive layer and absorbent charcoal material are stacked add after after rolling process process, form activated carbon electrodes, after further perfusion organic electrolyte, be assembled into described ultracapacitor.Prepared activated carbon electrodes has good electrology characteristic, and the ultracapacitor assembled has good energy storage characteristic, in field extensive uses such as industry, traffic, electronics, military affairs.
Description
Technical field
The invention belongs to based on ultracapacitor manufacturing technology field, particularly based on a kind of ultracapacitor and manufacture method thereof of three-decker active carbon electrode.
Background technology
Ultracapacitor is a kind of Novel energy storage apparatus, integrates the characteristics such as high-energy-density, high power density and long-life, and it also has the advantages such as non-maintaining and high reliability in addition, is a kind of new electronic component having both electric capacity and battery behavior.According to the difference of energy storage mechnism, ultracapacitor is mainly divided into " electric double layer type " ultracapacitor be based upon on interfacial electric double layer basis and " pseudo-capacitance type " ultracapacitor be based upon on pseudo capacitance basis.The character (comprising the specific area of material with carbon element, pore-size distribution, electrochemical stability and conductivity etc.) of material with carbon element is the decisive factor determining " electric double layer type " ultracapacitor performance.Find through research, the material with carbon element met the demands has active carbon, Nano carbon fibers peacekeeping CNT (carbon nano-tube) etc., more typical patent relevant therewith such as has the patent of MAXWELL company of the U.S., and (name is called " having the multi-electrode double layer capacitor of hermetic electrolyte seal ", publication number is CA1408121A) and the patent (name is called " active carbon fibre cloth/sprayed aluminium composite polar plate double electric layer capacitor and preparation method thereof ", and the patent No. is ZL03124290.1) of Sino Power Star Co., Ltd. (SPSCAP).The principle of " pseudo-capacitance " is that electrode material utilizes lithium ion or the storage of proton in the three-dimensional or accurate two-dimensional crystal lattice stereochemical structure of material to stay the object reaching storage power, such electrode material comprises metal oxide, nitride and high molecular polymer etc., relevant comparatively typical patent such as has (name is called " composite super capacitor and preparation method thereof based on cobalt oxide and ruthenium-oxide ", and the patent No. is ZL200810111892.7) of Tsing-Hua University therewith.The core component of ultracapacitor is its electrode, the many employings of traditional activated carbon electrode directly apply the method preparation of activated carbon slurry at aluminium foil surface, the method and lithium ion cell electrode preparation method similar, there is technical maturity, the advantage such as simple, but there is the deficiencies such as active carbon material layer easily comes off, such deficiency has had a strong impact on useful life and the reliability of ultracapacitor.
The present invention proposes a kind of preparation method of the ultracapacitor based on three-decker electrode, it is characterized in that, by adopting airless spraying technique or doctor blade process to prepare conductive layer on the surface in aluminium foil substrate, and then prepare active carbon material layer by coating processes and diaphragm rolling mill practice at conductive layer surface.Ultracapacitor based on described novel three-decker electrode has the features such as the large and stable performance of active carbon material layer difficult drop-off, energy storage density, in traffic, the energy, space flight, green novel energy source and military domain etc., have important application.
Summary of the invention
In order to solve the problem, the invention provides a kind of active carbon electrode and using described electrode as the ultracapacitor of positive pole and negative pole.Specifically, the present invention has come by following technical solution.
1. an active carbon electrode, is characterized in that, described active carbon electrode is formed by stacking by aluminium foil substrate, conductive layer and active carbon material layer.
2. the active carbon electrode according to technical scheme 1, is characterized in that, after by stacked to described aluminium foil substrate, conductive layer and active carbon material adding, obtains through rolling process process.
3. the active carbon electrode according to technical scheme 1 or 2, is characterized in that, described conductive layer is obtained by electrically-conducting paint, and described electrically-conducting paint comprises graphite as electric conducting material and acetylene black.
4. the active carbon electrode according to technical scheme 3, is characterized in that, the granularity of described graphite is not higher than 5 microns, and the ratio accounting for described conductive layer is 90 quality % to 98 quality %.
5. the active carbon electrode according to technical scheme 3, is characterized in that, the thickness of described conductive layer is not higher than 30 microns.
6. the active carbon electrode according to technical scheme 3, is characterized in that, the surface that described electrically-conducting paint to be sprayed at described aluminium foil substrate by airless spraying technique by described conductive layer is formed.
Preferably, described electrically-conducting paint is prepared as follows: by described electric conducting material and butanone according to 1: 1 mass ratio mix, then adopt the process of colloid mill grinding technics to form.
In addition preferably, in spraying process, high-pressure pump operating pressure is controlled as 2.5Mpa ~ 4Mpa, and by the control errors of coating thickness at 1mg/cm
2in scope.
7. the active carbon electrode according to technical scheme 1 or 2, is characterized in that, described active carbon material layer comprises active carbon material, acetylene black and adhesive.
Preferably, in the gross mass of described active carbon material layer, the mass ratio of described active carbon material is 70% to 95%, and the mass ratio of described acetylene black is 5% to 30%, and the mass ratio of described adhesive is 5% to 10%.In addition preferably, described active carbon material layer adopts slurry coating processes or the preparation of diaphragm rolling mill practice.
8. the active carbon electrode according to technical scheme 7, is characterized in that, described active carbon material layer adopts the preparation of slurry coating processes.
Preferably, described adhesive is sodium carboxymethylcellulose.
In addition preferably, described slurry is adopted and is prepared with the following method: described active carbon material, acetylene black and the described sodium carboxymethylcellulose as adhesive stirred in water and obtain after colloid mill milled processed;
In addition preferably, described coating processes is the surface adopting blade coating mode described slurry to be coated on described conductive layer, and is 100 microns to 300 microns by the THICKNESS CONTROL of coated active carbon material layer.
9. the active carbon electrode according to technical scheme 7, is characterized in that, described active carbon material layer adopts the preparation of diaphragm rolling mill practice.
Preferably, described adhesive is polytetrafluoroethylene.
In addition preferably, described diaphragm is adopted and is prepared with the following method: described active carbon material, acetylene black and the described polytetrafluoroethylene as adhesive are stirred in benzinum formation after shearing and have flexible " dough " shape solid mixt, adopts rolling mode to make described solid mixt form diaphragm.
In addition preferably, described rolling mill practice is the surface described diaphragm being positioned over described conductive layer, and is 500 microns to 1000 microns by the THICKNESS CONTROL of the active carbon material layer of institute's rolling.
10, a ultracapacitor, is characterized in that, described ultracapacitor comprises positive pole, negative pole and shell; Described positive pole and negative pole are the active carbon electrode described in any one of technical scheme 1 to 9.
Preferably, superposition or winding become electrode cores successively for described positive pole and described negative pole; Described shell is stainless steel casing or aluminum shell, and is sealed with organic electrolyte.
The present invention proposes a kind of there is three-decker active carbon electrode, based on the ultracapacitor of described active carbon electrode and the manufacture method of described active carbon electrode and described ultracapacitor.The structure of described ultracapacitor is that activated carbon positive pole and activated carbon negative pole are superposed to successively or are wound as electrode cores and are sealed in stainless steel or aluminum shell configuration example as cylindrical or square structure, pour into organic electrolyte in the structure shown here, be assembled into hermetically sealed ultracapacitor thus.
The invention has the beneficial effects as follows the active carbon electrode by having three-decker, conductive layer is prepared by proposing airless spraying technique, and make active carbon material layer difficult drop-off, effectively improve electrode conductivity and structural strength, and then improve energy storage density and the reliability of capacitor, the ultracapacitor described in the present invention is at industrial uninterrupted power supply, motor vehicle, wind power generation, and the fields such as high-power military power supply, radio communication are widely used.
Accompanying drawing explanation
Fig. 1 is that airless spraying technique prepares conducting layer craft schematic diagram
Fig. 2 is electrode three-decker schematic diagram
Fig. 3 is supercapacitor structures schematic diagram
Embodiment
The present invention proposes a kind of novel active carbon electrode, based on the ultracapacitor of described active carbon electrode and their preparation method.Described active carbon electrode is by aluminium foil substrate, and conductive layer and the superposition of this three-decker of active carbon material layer are formed.Conductive adhesive layer comprises electrically conductive graphite and acetylene black, adopts the preparation of airless spraying technique.Described active carbon material layer comprises active carbon material, acetylene black and adhesive, and coating processes can be adopted to prepare, and diaphragm rolling mill practice also can be adopted to prepare.After rolling process process, novel active carbon electrode is formed after described three-decker superposition.Described capacitor, by activated carbon positive pole and activated carbon negative pole superposition or after being wound as electrode cores, to be sealed in stainless steel or aluminum shell configuration example as cylindrical structure or square structure, and after further filling electrolyte, to be assembled into ultracapacitor; Described activated carbon positive pole is identical with negative pole structure.Ultracapacitor based on manufacture of the present invention is expected to obtain extensive use at multiple fields such as electronics, automobile, space flight, military affairs.
Specifically, in a first aspect of the present invention, provide a kind of active carbon electrode, described active carbon electrode is formed by stacking by aluminium foil substrate, conductive layer and active carbon material layer.Preferably, after by stacked to described aluminium foil substrate, conductive layer and active carbon material adding, obtain through rolling process process.
Described conductive layer is obtained by electrically-conducting paint, such as, electrically-conducting paint is sprayed at aluminium foil substrate surface and is formed.Described electrically-conducting paint comprises graphite as electric conducting material and acetylene black.The granularity of the present invention to graphite has no particular limits, but preferably, the granularity of described graphite is not higher than 5 microns.In addition, the ratio that preferred described graphite accounts for described conductive layer is 90 quality % to 98 quality %, such as, be 90 quality %, 92 quality %, 94 quality %, 96 quality % or 98 quality %.The content of the present invention to acetylene black has no particular limits, but the ratio preferably accounting for described conductive layer is 2 quality % to 10 quality %, such as, be 2 quality %, 4 quality %, 6 quality %, 8 quality % or 10 quality %.
In addition preferably, described electrically-conducting paint is prepared as follows: by described electric conducting material and butanone according to such as 1: 1 mass ratio mix, then adopt the process of colloid mill grinding technics to form.Acetylene black add the problem that hardens that graphite can be avoided may to occur at aluminium foil surface.
In addition preferably, the thickness of described conductive layer not higher than 30 microns, such as, is 5 microns, 10 microns, 15 microns, 20 microns, 25 microns or 30 microns.
In addition preferably, described conductive layer can be formed by doctor blade process or airless spraying technique.Compared with spraying coating process, doctor blade process is applicable to producing in enormous quantities more, but the conductive layer thickness formed by blade coating is comparatively large, and occurs that the probability of coating shedding phenomenon is relatively large.In the present invention, the surface more preferably described electrically-conducting paint being sprayed at described aluminium foil substrate by airless spraying technique is formed.Compared with other techniques, airless spraying technique is prepared conductive layer and is had the advantages such as coating efficiency is high, film quality good, dope viscosity wide adaptability.Based on the electrically-conducting paint of the materials such as graphite in the moment leaving nozzle, with air high-speed impact, make coating fragmentation become uniform particulate, thus realize the atomization of coating, and firmly stick to the surface of foil substrate.In addition preferably, when adopting spraying coating process to spray, high-pressure pump operating pressure is controlled as 2.5Mpa ~ 4Mpa, and by the control errors of coating thickness at 1mg/cm
2in scope.
Compared with the two-layer structure extensively adopted with electrode of super capacitor, the introducing of described conductive layer can strengthen its adhesion strength while the Contact internal resistance strengthening active carbon material and aluminium foil, and then effectively improves the reliability of electrode.
In active carbon electrode of the present invention, active carbon material layer is prepared on the surface of described conductive layer further.Preferably, described active carbon material layer comprises active carbon material, acetylene black and adhesive; More preferably, in the gross mass of described active carbon material layer, the mass ratio of described active carbon material is 70% to 95%, such as, be 70%, 75%, 80%, 85%, 90% or 95%, the mass ratio of described acetylene black is 5% to 30%, and the mass ratio of described adhesive is 5% to 10%.
In addition preferably, described active carbon material layer adopts slurry coating processes or the preparation of diaphragm rolling mill practice.
When adopting slurry coating processes to prepare active carbon material layer, can be soluble in water and stir using the preferred sodium carboxymethylcellulose as adhesive in the present invention, then active carbon material and acetylene black is added, abundant stirring forms uniform sizing material, and then slurry is adopted the thorough refinement of colloid mill Ginding process and homogenizing.Such as blade coating mode is adopted by the slurry handled well to be coated in conductive layer surface uniformly.Part bulky grain each component in slurry is well-mixed can be pulverized grinding by colloid mill Ginding process simultaneously.Colloid mill Ginding process effectively can also drive away the bubble of slurry inside.In addition preferably, being 100 microns to 300 microns by the THICKNESS CONTROL of coated active carbon material layer, such as, is 100 microns, 150 microns, 200 microns, 250 microns or 300 microns.
When described active carbon material layer adopts diaphragm rolling mill practice to prepare, described adhesive is preferably polytetrafluoroethylene; In addition preferably, described diaphragm is adopted and is prepared with the following method: described active carbon material, acetylene black and the polytetrafluoroethylene as adhesive are stirred in benzinum formation after shearing and have flexible " dough " shape solid mixt, adopts rolling mode to make described solid mixt form diaphragm (being preferably formed flexible membrane).Compare slurry coating processes, diaphragm rolling mill practice effectively can improve electrode activity material with carbon element layer thickness, and then improves capacitor energy storage density.In addition preferably, described rolling mill practice is the surface described diaphragm being positioned over described conductive layer, and be 500 microns to 1000 microns by the THICKNESS CONTROL of the active carbon material layer of institute's rolling, be such as 500 microns, 600 microns, 700 microns, 800 microns, 900 microns or 300 microns.
After such as twin rollers roller process, active carbon electrode of the present invention is formed after aluminium foil substrate, conductive layer and this three-decker of active carbon material layer being superposed.
In a second aspect of the present invention, provide a kind of ultracapacitor, described ultracapacitor comprises positive pole, negative pole and shell; Described positive pole and negative pole are active carbon electrode of the present invention.Preferably, superposition or winding become electrode cores successively for described positive pole and described negative pole; In addition preferably, described shell is stainless steel casing or aluminum shell, and is sealed with organic electrolyte.It is further preferred that described ultracapacitor adopts identical described activated carbon positive pole and activated carbon negative pole.
Described electrode can adopt method such as thorn riveting or welding etc. to connect drainage strip, then after the techniques such as superposition, winding, electrode cores is formed, put into after drainage strip is connected with electrode terminal after stainless steel or aluminum shell connect top cover with calendering or welding manner and complete dry state encapsulation, by vacuum drying etc., processed is carried out to dry state packaging semi-finished product, at utmost to remove the moisture of capacitor internal, finally pour into nonaqueous electrolyte and after shutting liquid injection port, complete capacitor assembling.
The electrode structure of ultracapacitor, conductive layer airless spraying preparation technology and capacitor arrangement be as shown in the figure:
Fig. 1 conductive layer airless spraying preparation technology schematic diagram, wherein 1 is foil substrate, and 2 is electrically-conducting paint tank, and 3 is high-pressure pump, and 4 is paint delivery tube, and 5 is spray gun
Fig. 2 is electrode structure schematic diagram, and wherein 1 is aluminium foil substrate, and 6 is conductive layer, and 7 is active carbon material layer
Fig. 3 is supercapacitor structures schematic diagram, and wherein 8 is electrode cores, 9 drainage strips, and 10 is top cover, and 11 is electrode terminal, and 12 is shell, and 13 is liquid injection port
Embodiment
Be further detailed the preferred embodiment of the present invention by the following examples, but embodiment only for the purpose of illustration, can not be interpreted as the restriction to scope of the present invention, in other words, scope of the present invention is not limited to these embodiments.
Embodiment 1
Electrically-conducting paint preparing process process.Be fully to mix at 9: 1 in mass ratio by graphite and acetylene black, by gained mixture and butanone according to 1: 1 mass ratio fully mix formation electrically-conducting paint, adopt the mode of colloid mill grinding by abundant for described coating refinement and homogenizing.
Conductive layer preparation process.Adopt airless spraying technique to be uniformly sprayed by electrically-conducting paint and form conductive layer in the surface of aluminium foil, spraying coating process as shown in Figure 1, the coating (conductive layer) of spraying as shown in 6 in Fig. 2.In spraying process, pump pressure is 3Mpa, and conductive layer thickness prepared by spraying coating process is 20 microns, and spraying control errors is at 1mg/cm
2within scope.
Active carbon material layer coating preparation process.Sodium carboxymethylcellulose is soluble in water and stir, then add active carbon material and acetylene black, and fully stir and form uniform sizing material, and then slurry is adopted the thorough refinement of colloid mill Ginding process and homogenizing.Blade coating mode is adopted by the slurry handled well to be coated in conductive layer surface (as shown in Fig. 2 7) uniformly.Active carbon material, acetylene black and sodium carboxymethylcellulose mass ratio are respectively 85%, 7% and 8%, and the thickness of electrode material layer is 200 microns.
Active carbon electrode preparation process.Electrode is formed after above-mentioned three-decker is adopted twin rollers roller process.
Capacitor assembling technical process.As shown in Figure 3, prepared electrode is connected drainage strip 9 by thorn rivetting method, then with barrier film 7 through superposing and forming electrode cores 8 after the technique such as winding, put into after drainage strip is connected with electrode terminal 11 and complete dry state after stainless steel casing 12 connects top cover 10 in calendering mode and encapsulate, dry state packaging semi-finished product is carried out to the processed such as vacuum drying at utmost to remove the moisture of capacitor internal, finally pour into nonaqueous electrolyte and after shutting liquid injection port 13, complete capacitor assembling.
Embodiment 2 and 3
Adopt the mode similar to embodiment 1 to prepare electrode, difference is the parameter listed by table 1.
Embodiment 4
Electrically-conducting paint preparing process process.Be fully to mix graphite and acetylene black at 9: 1 by the two mass ratio, by the mixture of gained and butanone according to 1: 1 mass ratio fully mix formation electrically-conducting paint, adopt the mode of colloid mill grinding by abundant for coating refinement and homogenizing.
Conductive layer preparation process.Adopt airless spraying technique that electrically-conducting paint is coated on foil substrate surface uniformly, conductive layer thickness is 30 microns.
Active carbon material tunic sheet rolling process.Polytetrafluoroethylene is placed in benzinum and stirs, then add active carbon material and acetylene black and fully stir shear after formed there is certain flexible solid mixt, and then adopt milling method that solid mixt preparation is become flexible membrane.The diaphragm prepared is positioned over conductive layer surface, as shown in 7 in Fig. 2.Active carbon material, acetylene black and polytetrafluoroethylene mass ratio are respectively 85%, 5% and 10%, and thickness of electrode is 800 microns.
Active carbon electrode preparation process, forms electrode after above-mentioned three-decker is adopted twin rollers roller process.
Capacitor assembling technical process.As shown in Figure 3, prepared electrode is connected drainage strip 9 by welding manner, then with barrier film 7 through superposing and forming electrode cores 8 after the technique such as winding, put into after drainage strip is connected with electrode terminal 11 and complete dry state after aluminum shell 12 connects top cover 10 with welding manner and encapsulate, dry state packaging semi-finished product is carried out to the processed such as vacuum drying at utmost to remove the moisture of capacitor internal, finally pour into nonaqueous electrolyte and after shutting liquid injection port 13, complete capacitor assembling.
Embodiment 5 and 6
Adopt the mode similar to embodiment 2 to prepare the electrode of embodiment 2 and 3, difference is the parameter listed by table 1.
The parameter adopted in each embodiment of table 1
Measure the energy storage density of the adhesion strength of the active carbon material in electrode obtained in each embodiment and foil substrate and obtained ultracapacitor, discharge power and working life, result is as shown in table 2 below.
Electrode obtained in each embodiment of table 2 and the performance index of ultracapacitor
| Embodiment | Adhesion strength (MPa) | Energy storage density (Wh/kg) | Discharge power (kW/kg) | Working life (ten thousand times) |
| Embodiment 1 | 0.10 | 4.6 | 6.0 | 50 |
| Embodiment 2 | 0.11 | 4.3 | 6.7 | 50 |
| Embodiment 3 | 0.11 | 4.8 | 6.2 | 50 |
| Embodiment 4 | 0.13 | 5.3 | 6.5 | 50 |
| Embodiment 5 | 0.13 | 5.0 | 6.9 | 50 |
| Embodiment 6 | 0.12 | 5.6 | 6.4 | 50 |
Note: adhesion strength is the adhesion strength in obtained active carbon electrode between active carbon material and foil substrate; Energy storage density, discharge power and working life are the energy storage density of obtained ultracapacitor, discharge power and working life.
Claims (18)
1. an active carbon electrode, is characterized in that, described active carbon electrode is formed by stacking by aluminium foil substrate, conductive layer and active carbon material layer, and wherein, described active carbon material layer comprises active carbon material, acetylene black and adhesive; In the gross mass of described active carbon material layer, the mass ratio of described active carbon material is 70% to 90%, and the mass ratio of described acetylene black is 5% to 25%, and the mass ratio of described adhesive is 5% to 10%.
2. active carbon electrode according to claim 1, is characterized in that, after by stacked to described aluminium foil substrate, conductive layer and active carbon material adding, obtains through rolling process process.
3. active carbon electrode according to claim 1 and 2, is characterized in that, described conductive layer is obtained by electrically-conducting paint, and described electrically-conducting paint comprises graphite as electric conducting material and acetylene black.
4. active carbon electrode according to claim 3, is characterized in that, the granularity of described graphite is not higher than 5 microns, and the ratio accounting for described conductive layer is 90 quality % to 98 quality %.
5. active carbon electrode according to claim 3, is characterized in that, the thickness of described conductive layer is not higher than 30 microns.
6. active carbon electrode according to claim 3, is characterized in that, the surface that described electrically-conducting paint to be sprayed at described aluminium foil substrate by airless spraying technique by described conductive layer is formed.
7. active carbon electrode according to claim 3, is characterized in that, described electrically-conducting paint is prepared as follows: mixed with the mass ratio of butanone according to 1:1 by described electric conducting material, then adopts the process of colloid mill grinding technics to form.
8. active carbon electrode according to claim 6, is characterized in that, in spraying process, controls high-pressure pump operating pressure for 2.5Mpa ~ 4Mpa, and by the control errors of coating thickness at 1mg/cm
2in scope.
9. active carbon electrode according to claim 1 and 2, is characterized in that, described active carbon material layer adopts slurry coating processes or the preparation of diaphragm rolling mill practice.
10. active carbon electrode according to claim 9, is characterized in that, described active carbon material layer adopts the preparation of slurry coating processes, and described adhesive is sodium carboxymethylcellulose.
11. active carbon electrodes according to claim 10, it is characterized in that, described slurry is adopted and is prepared with the following method: described active carbon material, acetylene black and the described sodium carboxymethylcellulose as adhesive stirred in water and obtain after colloid mill milled processed.
12. active carbon electrodes according to claim 10, is characterized in that, described coating processes is the surface adopting blade coating mode described slurry to be coated on described conductive layer, and is 100 microns to 300 microns by the THICKNESS CONTROL of coated active carbon material layer.
13. active carbon electrodes according to claim 9, is characterized in that, described active carbon material layer adopts the preparation of diaphragm rolling mill practice, and described adhesive is polytetrafluoroethylene.
14. active carbon electrodes according to claim 13, it is characterized in that, described diaphragm is adopted and is prepared with the following method: described active carbon material, acetylene black and the described polytetrafluoroethylene as adhesive are stirred in benzinum formation after shearing and have flexible " dough " shape solid mixt, adopts rolling mode to make described solid mixt form diaphragm.
15. active carbon electrodes according to claim 13, is characterized in that, described rolling mill practice is the surface described diaphragm being positioned over described conductive layer, and are 500 microns to 1000 microns by the THICKNESS CONTROL of the active carbon material layer of institute's rolling.
16. 1 kinds of ultracapacitors, is characterized in that, described ultracapacitor comprises positive pole, negative pole and shell; Described positive pole and negative pole are the active carbon electrode described in any one of claim 1 to 15.
17. ultracapacitors according to claim 16, is characterized in that, described positive pole and described negative pole successively superposition or winding become electrode cores.
18. ultracapacitors according to claim 16, is characterized in that, described shell is stainless steel casing or aluminum shell, and is sealed with organic electrolyte.
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| CN102881909B (en) * | 2011-07-13 | 2015-02-04 | 北京林业大学 | Defluorination carbon electrode and its preparation method |
| CN103137334B (en) * | 2011-12-01 | 2016-06-08 | 上海奥威科技开发有限公司 | For the making method of electrode slice and the ultracapacitor of ultracapacitor |
| TWI466153B (en) | 2011-12-15 | 2014-12-21 | Ind Tech Res Inst | Capacitor and manufacturing method thereof |
| TWI460238B (en) | 2011-12-15 | 2014-11-11 | Ind Tech Res Inst | Self-assembly coating material, heat dissipation plate and manufacturing method thereof |
| CN103378308A (en) * | 2012-04-28 | 2013-10-30 | 海洋王照明科技股份有限公司 | Organic light-emitting device and manufacturing method thereof |
| CN105390299A (en) * | 2015-12-16 | 2016-03-09 | 湖南耐普恩科技有限公司 | Preparation method for supercapacitor pole piece |
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