CN105448534B - A kind of combination electrode and preparation method thereof and the application in ultracapacitor - Google Patents
A kind of combination electrode and preparation method thereof and the application in ultracapacitor Download PDFInfo
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- CN105448534B CN105448534B CN201410791552.9A CN201410791552A CN105448534B CN 105448534 B CN105448534 B CN 105448534B CN 201410791552 A CN201410791552 A CN 201410791552A CN 105448534 B CN105448534 B CN 105448534B
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- 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
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- 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
Abstract
Application the invention discloses a kind of combination electrode and preparation method thereof and in ultracapacitor, composite electrode active material is set in collection liquid surface, the composite electrode active material is simultaneously comprising pseudocapacitors electrode active material and electrical double layer capacitor electrodes active material；The pseudocapacitors electrode active material is at least one of conducting polymer or metal oxide, and the electrical double layer capacitor electrodes active material is carbon activity material.Using the combination electrode comprising pseudocapacitors electrode active material and electrical double layer capacitor electrodes active material as the electrode of ultracapacitor, not only there is high-energy density and power density, and it is simple for process, performance is controllable, the application field of ultracapacitor can be widened.
Description
Technical field
The invention belongs to the preparation fields of ultracapacitor, and in particular to a kind of combination electrode and preparation method thereof and super
Application in grade capacitor.
Background technology
With the aggravation of global resource shortage and the craving to green technology and high performance-price ratio alternative energy source, countries in the world
All researching and developing the new environmental type energy.The novel energy-storing product that ultracapacitor is given priority to as this century, is low-carbon
One of economic core product, just by countries in the world institute extensive concern, also for more and more countries and enterprises fall over each other to develop and
Production.
Ultracapacitor is the green energy storage device between battery and traditional capacitor, is had than traditional capacitor more
High energy density, power density more higher than battery；Not only there is the energy storage characteristic of battery, but also quickly filled with traditional capacitor
The characteristic of electric discharge, and the material used in it is commonly environmentally protective.Ultracapacitor is in new-energy automobile, the renewable sources of energy, boat
The various fields such as air force's thing, communication, industry, consumer electronics have huge application value and market potential.Ultracapacitor
Electrode active material is divided into electrical double layer capacitor electrodes active material and pseudocapacitors electrode active material, wherein electric double layer capacitance
Device electrode active material be for example commercialized activated carbon of carbon activity material, its bigger serface and fast charging and discharging characteristic, therefore
There is high power density, but the specific capacitance of activated carbon is relatively low, therefore super using its ultracapacitor as electrode active material
The energy density of capacitor is far below lithium ion battery.Pseudocapacitors electrode active material is metal oxide or conducting polymer
Object, they have the higher specific capacitance of specific activity charcoal and voltage window, according to E=1/2CV2It is found that super capacitor can be improved
The energy density of device.
Invention content
The present invention has made improvements in view of the above-mentioned problems of the prior art, and the object of the present invention is to provide a kind of compound electrics
Pole and preparation method thereof and the application in ultracapacitor will include pseudocapacitors electrode active material and double layer capacitor
Electrode of the combination electrode of electrode active material as ultracapacitor, not only with high-energy density and power density, but also
It is simple for process, performance is controllable, the application field of ultracapacitor can be widened.
To achieve the above object, the present invention adopts the following technical scheme that：
A kind of combination electrode sets composite electrode active material, the composite electrode active material in collection liquid surface
Simultaneously comprising pseudocapacitors electrode active material and electrical double layer capacitor electrodes active material；The pseudocapacitors electrode activity
Material is at least one of conducting polymer or metal oxide, and the electrical double layer capacitor electrodes active material is lived for carbon
Property material.
Electrical double layer capacitor electrodes active material is first set in collection liquid surface, then pseudocapacitors electrode activity material is set
Material；Or pseudocapacitors electrode active material is first set in collection liquid surface, then electrical double layer capacitor electrodes active material is set；
Wherein 20 ~ 100% setting electrical double layer capacitor electrodes active materials of collection liquid surface.
The thickness ratio of electrical double layer capacitor electrodes active material and pseudocapacitors electrode active material is 80:1~1:80, more
Excellent ground thickness ratio is 40:1~1:40.
Conducting polymer is polypyrrole and its derivative, polythiophene and its derivative, Polyaniline and its derivative, polyphenyl second
Alkene and its derivative, gathers at least one of benzene and its derivative, poly quinoline and its derivative polypyridine and its derivative
Metal oxide is at least one of oxide of manganese, ruthenium, cobalt, nickel, vanadium.
Carbon activity material is activated carbon, graphene, carbon nanotubes, carbon gel, carbon fiber, soft carbon, hard carbon, in graphite extremely
Few one kind.
The current collector material is aluminium, copper, nickel, tantalum, titanium, lead, stainless steel, carbon, graphite, conducting polymer or graphene
At least one of.
Electrical double layer capacitor electrodes active material includes coating, spraying, dipping, print in the setting method of collection liquid surface
Brush, printing, electro-deposition；Pseudocapacitors electrode active material collection liquid surface setting method include coating, spraying, dipping,
Printing, printing, chemical deposition, electrochemical deposition.
Electrode of the combination electrode as ultracapacitor.At least one of positive or negative pole in ultracapacitor
Electrode is the combination electrode；The assembling of ultracapacitor：Diaphragm between positive electrode and negative electrode is set, adds electrolyte, is folded
Piece or winding are assembled into ultracapacitor.
The remarkable advantage of the present invention is：Pseudocapacitors electrode active material and electrical double layer capacitor electrodes activity will be included
Electrode of the combination electrode of material as ultracapacitor, not only with high-energy density and power density, but also simple for process,
Performance is controllable, can widen the application field of ultracapacitor.
Specific embodiment
A kind of combination electrode sets composite electrode active material, the electrode as ultracapacitor in collection liquid surface.It should
Combination electrode is simultaneously comprising pseudocapacitors electrode active material and electrical double layer capacitor electrodes active material, pseudocapacitors electrode active
Property material be at least one of conducting polymer or metal oxide, electrical double layer capacitor electrodes active material be carbon activity material
Material.
In the present invention, electrical double layer capacitor electrodes active material is first set, then sets in the collection liquid surface of combination electrode
Pseudocapacitors electrode active material；Or pseudocapacitors electrode active material is first set in collection liquid surface, then electric double layer is set
Electrode for capacitors active material.More preferably 80 ~ 100% collection liquid surfaces setting double layer capacitor electricity of the 20 ~ 100% of combination electrode
Pole active material, remaining collection liquid surface set pseudocapacitors electrode active material.
In the present invention, the thickness ratio of electrical double layer capacitor electrodes active material and pseudocapacitors electrode active material is 80:1
~1:80, more preferably thickness ratio is 40:1~1:40, more preferably thickness is 10:1~1:10.
In the present invention, conducting polymer is polypyrrole and its derivative, polythiophene and its derivative, polyaniline and its derivative
Object, polystyrene and its derivative, polypyridine and its derivative gather in benzene and its derivative, poly quinoline and its derivative
It is at least one；Metal oxide is at least one of oxide of manganese, ruthenium, cobalt, nickel, vanadium；Carbon activity material is activated carbon, stone
At least one of black alkene, carbon nanotubes, carbon gel, carbon fiber, soft carbon, hard carbon, graphite.
Technical solution in the present invention second is that：A kind of ultracapacitor is by anode, cathode, between positive electrode and negative electrode
Diaphragm and electrolyte composition, wherein at least one of positive or negative pole electrode are the combination electrode.Ultracapacitor
Making step：
（1）The preparation of combination electrode：Being coated with, spraying, impregnating, printing, printing, electro-deposition the methods of by activated carbon, stone
The carbon activities material such as black alkene, carbon nanotube is set to collection liquid surface；Being coated with, spraying, impregnating, printing, printing, chemical deposition
Or the fake capacitances active material such as conducting polymer, metal oxide is set to collector and carbon activity by the methods of electrochemical deposition
Combination electrode is made in material surface.Or being coated with, spraying, impregnating, printing, printing, the side such as chemical deposition or electrochemical deposition
The fake capacitances active material such as conducting polymer, metal oxide is set to collection liquid surface by method, being coated with, spraying, impregnating, printing
The carbon activities material such as activated carbon, graphene, carbon nanotube is set to collector and fake capacitance by the methods of brush, printing, electro-deposition
The surface of active material, is made combination electrode.
（2）The assembling of ultracapacitor：Diaphragm between positive electrode and negative electrode is set, adds electrolyte, lamination or winding group
Dress up ultracapacitor.
Ultracapacitor preparation process of the present invention（1）Collector is materials of aluminum, copper, nickel, tantalum, titanium, lead, stainless steel, carbon, stone
At least one of ink, conducting polymer or graphene.
Step of the present invention（2）In, the diaphragm can prevent positive plate and negative plate to be in direct contact and short-circuit, but permission ion
Conduction.The diaphragm is polyethene microporous membrane, microporous polypropylene membrane, polyvinylidene fluoride microporous film, polypropylene-polyethylene are compound
At least one of film, inorganic ceramic membrane, paper diaphragm, nonwoven cloth diaphragm.
In the present invention, the electrode of the ultracapacitor assembled in a manner of lamination, winding etc. slabbing, rectangular, button,
Any one of cylindrical shell can also be assembled into irregular external form.
Embodiment 1：By activated carbon, acetylene black, butadiene-styrene rubber（SBR）, carboxymethyl cellulose（CMC）In mass ratio 80:10:
7:3 are mixed into slurry, are coated on aluminium foil surface, and dried at a temperature of 110 DEG C.By polyaniline, acetylene black, butadiene-styrene rubber
（SBR）, carboxymethyl cellulose（CMC）In mass ratio 80:10:7:3 are mixed into slurry, are coated in aluminium foil and activated carbon surface,
And dried at a temperature of 110 DEG C, combination electrode is made.Again according to a conventional method roll-in, cut into predetermined size, be dried in vacuo,
Diaphragm between anode composite and composite negative pole is set, adds electrolyte, winding is assembled into column ultracapacitor.Combination electrode
The thickness ratio of 100% collection liquid surface setting activated carbon, activated carbon surface setting polyaniline, activated carbon and polyaniline is 80:1.
Embodiment 2：By graphene, butadiene-styrene rubber（SBR）, carboxymethyl cellulose（CMC）In mass ratio 40:7:3 are mixed into
Slurry is sprayed at aluminium foil surface, and is dried at a temperature of 110 DEG C.By polypyrrole, acetylene black, butadiene-styrene rubber（SBR）, carboxymethyl
Cellulose（CMC）In mass ratio 80:10:7:3 are mixed into slurry, then are sprayed at aluminium foil and graphene surface, and in 110 DEG C of temperature
Lower drying, is made combination electrode.By activated carbon, acetylene black, butadiene-styrene rubber（SBR）, carboxymethyl cellulose（CMC）In mass ratio
80:10:7:3 are mixed into slurry, are coated on aluminium foil surface, and dried at a temperature of 110 DEG C, activated carbon electrodes are made.Again by normal
Rule method by electrode roll-in, cut into predetermined size, be dried in vacuo, diaphragm is set between anode composite and activated carbon negative electrode,
Electrolyte is added, winding is assembled into column ultracapacitor.The 95% collection liquid surface setting graphene of combination electrode, residue 5%
The thickness ratio of collection liquid surface and graphene surface setting polypyrrole, graphene and polypyrrole is 50:1.
Embodiment 3：By carbon nanotubes, butadiene-styrene rubber（SBR）, carboxymethyl cellulose（CMC）In mass ratio 40:7:3 mixing
Into slurry, aluminum foil current collector surface is sprayed at, and dried at a temperature of 110 DEG C.By poly- 3,4 ethene dioxythiophene, manganese dioxide,
Conductive black, butadiene-styrene rubber（SBR）, carboxymethyl cellulose（CMC）In mass ratio 70:10:10:7:3 are mixed into slurry, then spray
It in carbon nanotubes surface, and is dried at a temperature of 110 DEG C, combination electrode is made.Electrode roll-in is cut into according to a conventional method again
Predetermined size, vacuum drying set diaphragm between anode composite and composite negative pole, add electrolyte, and winding is assembled into column
Ultracapacitor.The 90% collection liquid surface setting carbon nanotubes of combination electrode, remaining 10% collection liquid surface and carbon nanotubes table
Face sets poly- 3,4 ethene dioxythiophene, and carbon nanotubes and poly- 3, the thickness ratio of 4 ethene dioxythiophenes is 20:1.
Embodiment 4：By activated carbon, Ketjen black, butadiene-styrene rubber（SBR）, carboxymethyl cellulose（CMC）In mass ratio 80:10:
7:3 are uniformly mixed, and are tuned into slurry with water, are printed in aluminum foil current collector surface, and dried at a temperature of 110 DEG C.By polyaniline, second
Acetylene black, butadiene-styrene rubber（SBR）, carboxymethyl cellulose（CMC）In mass ratio 80:10:7:3 are uniformly mixed, and slurry is tuned into water, then
Activated carbon surface is printed in, and is dried at a temperature of 110 DEG C, combination electrode is made.Electrode roll-in is cut according to a conventional method again
Into predetermined size, vacuum drying sets diaphragm between anode composite and composite negative pole, adds electrolyte, and winding is assembled into column
Shape ultracapacitor.The 85% collection liquid surface setting activated carbon of combination electrode, remaining 15% collection liquid surface and activated carbon surface
The thickness ratio of setting polyaniline, activated carbon and polyaniline is 10:1.
Embodiment 5：By polyaniline, acetylene black, butadiene-styrene rubber（SBR）, carboxymethyl cellulose（CMC）In mass ratio 80:10:
7:3 are uniformly mixed, and are tuned into slurry, then be sprayed at aluminium foil surface with water, and dried at a temperature of 110 DEG C.By graphene, acetylene
Black, butadiene-styrene rubber（SBR）, carboxymethyl cellulose（CMC）In mass ratio 40:10:7:3 are uniformly mixed, and slurry is tuned into water, spray
It in polyaniline surface, and is dried at a temperature of 110 DEG C, combination electrode is made.Electrode roll-in is cut into established practice according to a conventional method again
It is sized, is dried in vacuo, diaphragm is set between anode composite and composite negative pole, add electrolyte, winding is assembled into column and surpasses
Grade capacitor.The 20% collection liquid surface setting polyaniline of combination electrode, remaining 80% collection liquid surface are set with polyaniline surface
The thickness ratio of graphene, graphene and polyaniline is 5:1.
Embodiment 6：By activated carbon, acetylene black, butadiene-styrene rubber（SBR）, carboxymethyl cellulose（CMC）In mass ratio 80:10:
7:3 are uniformly mixed, and are tuned into slurry with water, are coated on aluminum foil current collector surface, and dried at a temperature of 110 DEG C.With chemical polymerization
Method prepares polyaniline in activated carbon surface, and is dried at a temperature of 80 DEG C, and combination electrode is made.Roll-in according to a conventional method again,
Predetermined size is cut into, is dried in vacuo, diaphragm is set between anode composite and composite negative pole, adds electrolyte, winding assembling
Into column ultracapacitor.The 70% collection liquid surface setting activated carbon of combination electrode, remaining 30% collection liquid surface and activated carbon
The thickness ratio of surface setting polyaniline, activated carbon and polyaniline is 1:1.
Embodiment 7：By activated carbon, acetylene black, butadiene-styrene rubber（SBR）, carboxymethyl cellulose（CMC）In mass ratio 80:10:
7:3 are uniformly mixed, and are tuned into slurry with water, are coated on aluminum foil current collector surface, and dried at a temperature of 110 DEG C.With chemical polymerization
Method prepares Polyglycolic acid fibre in activated carbon surface, and is dried at a temperature of 80 DEG C, and combination electrode is made.By activated carbon,
Acetylene black, butadiene-styrene rubber（SBR）, carboxymethyl cellulose（CMC）In mass ratio 80:10:7:3 are uniformly mixed, and slurry is tuned into water,
Aluminum foil current collector surface is sprayed at, and is dried at a temperature of 110 DEG C, prepares conventional electrodes.Again according to a conventional method by electrode roll-in,
Predetermined size is cut into, is dried in vacuo, diaphragm is set between anode composite and activated carbon negative electrode, adds electrolyte, stack of laminations
Dress up button ultracapacitor.The 60% collection liquid surface setting activated carbon of combination electrode, remaining 40% collection liquid surface and activity
The thickness ratio of carbon surface setting Polyglycolic acid fibre, activated carbon and Polyglycolic acid fibre is 1:5.
Embodiment 8：By activated carbon, Ketjen black, butadiene-styrene rubber（SBR）, carboxymethyl cellulose（CMC）In mass ratio 80:10:
7:3 are uniformly mixed, and are tuned into slurry with water, are coated on aluminum foil current collector surface, and dried at a temperature of 110 DEG C.Gathered with electrochemistry
Conjunction method prepares polypyrrole in activated carbon surface, and is dried at a temperature of 80 DEG C, and combination electrode is made.It again according to a conventional method will be electric
Pole roll-in cuts into predetermined size, and vacuum drying sets diaphragm between anode composite and composite negative pole, adds electrolyte, folds
Piece or winding are assembled into Soft Roll ultracapacitor.The 50% collection liquid surface setting activated carbon of combination electrode, remaining 50% collector
The thickness ratio of surface and activated carbon surface setting polypyrrole, activated carbon and polypyrrole is 1:10.
Embodiment 9：By graphene, acetylene black, butadiene-styrene rubber（SBR）, carboxymethyl cellulose（CMC）In mass ratio 40:10:
7:3 are uniformly mixed, and are tuned into slurry with water, are coated on aluminum foil current collector surface, and dried at a temperature of 110 DEG C.By polyaniline, second
Acetylene black, butadiene-styrene rubber（SBR）, carboxymethyl cellulose（CMC）In mass ratio 80:10:7:3 are uniformly mixed, and slurry is tuned into water, then
Graphene surface is sprayed at, and is dried at a temperature of 110 DEG C, combination electrode is made.Electrode roll-in is cut according to a conventional method again
Into predetermined size, vacuum drying sets diaphragm between anode composite and composite negative pole, adds electrolyte, lamination or winding group
Dress up ultracapacitor.The 40% collection liquid surface setting graphene of combination electrode, remaining 60% collection liquid surface and graphene table
The thickness ratio of face setting polyaniline, graphene and polyaniline is 1:20.
Embodiment 10：By carbon nanotube, acetylene black, butadiene-styrene rubber（SBR）, carboxymethyl cellulose（CMC）In mass ratio 40:
10:7:3 are uniformly mixed, and are tuned into slurry with water, are coated on aluminum foil current collector surface, and dried at a temperature of 110 DEG C.By polyphenyl
Amine, acetylene black, butadiene-styrene rubber（SBR）, carboxymethyl cellulose（CMC）In mass ratio 80:10:7:3 are uniformly mixed, and are slurred with water
Material, then carbon nano tube surface is sprayed at, and dried at a temperature of 110 DEG C, combination electrode is made.Roll-in according to a conventional method again is cut out
Predetermined size is cut into, is dried in vacuo, diaphragm is set between anode composite and composite negative pole, adds electrolyte, lamination or winding
It is assembled into ultracapacitor.The 30% collection liquid surface setting carbon nanotube of combination electrode, remaining 70% collection liquid surface are received with carbon
The thickness ratio of nanotube surface setting polyaniline, carbon nanotube and polyaniline is 1:50.
Embodiment 11：By activated carbon, Ketjen black, butadiene-styrene rubber（SBR）, carboxymethyl cellulose（CMC）In mass ratio 80:
10:7:3 are uniformly mixed, and are tuned into slurry with water, are coated on aluminum foil current collector surface, and dried at a temperature of 110 DEG C.With electrochemistry
Polymerization prepares polypyrrole in activated carbon surface, and is dried at a temperature of 80 DEG C, and combination electrode is made.According to a conventional method will again
Electrode roll-in cuts into predetermined size, and vacuum drying sets diaphragm between anode composite and composite negative pole, adds electrolyte,
Lamination or winding are assembled into Soft Roll ultracapacitor.The 20% collection liquid surface setting activated carbon of combination electrode, remaining 80% afflux
The thickness ratio of body surface face and activated carbon surface setting polypyrrole, activated carbon and polypyrrole is 1:80.
Comparative example 1：By activated carbon, acetylene black, butadiene-styrene rubber（SBR）, carboxymethyl cellulose（CMC）In mass ratio 80:10:
7:3 are uniformly mixed, and are tuned into slurry with water, are coated in aluminum foil current collector surface, and dried at a temperature of 110 DEG C, prepare conventional
Electrode.Electrode roll-in is cut into predetermined size according to a conventional method again, is dried in vacuo, in activated carbon anode and activated carbon negative electrode
Between diaphragm is set, add electrolyte, lamination or winding are assembled into ultracapacitor.
1 performance parameter table of table
In 1-11 of the embodiment of the present invention, at least one electrode is combination electrode in positive or negative pole in ultracapacitor, multiple
Activated carbon electrodes of the specific capacitance of composite electrode compared with comparative example 1 are significantly high, particularly embodiment 4-8 double layer electrodes activity material
The thickness proportion of material and pseudocapacitors electrode active material is 10:1~1:10, the specific capacitance highest of combination electrode, it is seen then that will wrap
Electricity of the combination electrode of electrode active material containing pseudocapacitors and electrical double layer capacitor electrodes active material as ultracapacitor
Pole can significantly improve the energy density of ultracapacitor.
In the present invention, column ultracapacitor is not limited only to, electrode assembles slabbing, side in a manner of lamination, winding etc.
Any one of shape, button, column external form, can also be assembled into irregular external form.The foregoing is merely the preferable realities of the present invention
Example is applied, all equivalent changes and modifications done according to scope of the present invention patent should all belong to covering scope of the invention.
Claims (2)
1. a kind of combination electrode sets composite electrode active material layer in collection liquid surface, it is characterised in that：The compound electric
Pole active material layer is simultaneously comprising pseudocapacitors electrode active material layers and electrical double layer capacitor electrodes active material layer；Described
Pseudocapacitors electrode active material is conducting polymer, and the electrical double layer capacitor electrodes active material is carbon activity material；
The conducting polymer is at least one of polypyrrole, poly- 3,4 ethene dioxythiophene, polyaniline；The carbon activity
Material is activated carbon；
Electrical double layer capacitor electrodes active material layer is first set in collection liquid surface, then pseudocapacitors electrode active material is set
Layer；Or pseudocapacitors electrode active material layers are first set in collection liquid surface, then electrical double layer capacitor electrodes activity material is set
The bed of material；
The wherein 50% collection liquid surface setting electrical double layer capacitor electrodes active material layer of combination electrode, remaining 50% collector
Surface sets pseudocapacitors electrode active material layers, double layer capacitor electricity with electrical double layer capacitor electrodes active material layer surface
The thickness ratio of pole active material layer and pseudocapacitors electrode active material layers is 1:10；
Or the 60% collection liquid surface setting electrical double layer capacitor electrodes active material layer of combination electrode, remaining 40% afflux body surface
Face sets pseudocapacitors electrode active material layers, electrical double layer capacitor electrodes with electrical double layer capacitor electrodes active material layer surface
The thickness ratio of active material layer and pseudocapacitors electrode active material layers is 1:5；
Or the 70% collection liquid surface setting electrical double layer capacitor electrodes active material layer of combination electrode, remaining 30% afflux body surface
Face sets pseudocapacitors electrode active material layers, activated carbon and pseudocapacitors with electrical double layer capacitor electrodes active material layer surface
The thickness ratio of electrode active material layers is 1:1；
Or the 20% collection liquid surface setting pseudocapacitors electrode active material layers of combination electrode, remaining 80% collection liquid surface with
Pseudocapacitors electrode active material layers surface sets electrical double layer capacitor electrodes active material layer, electrical double layer capacitor electrodes activity
The thickness ratio of material layer and pseudocapacitors electrode active material layers is 5:1；
Or the 85% collection liquid surface setting electrical double layer capacitor electrodes active material layer of combination electrode, remaining 15% afflux body surface
Face sets pseudocapacitors electrode active material layers, activated carbon and pseudocapacitors with electrical double layer capacitor electrodes active material layer surface
The thickness ratio of electrode active material layers is 10:1.
A kind of 2. method for preparing combination electrode as described in claim 1, it is characterised in that：Electrical double layer capacitor electrodes activity
Material includes coating, spraying, dipping, printing, printing, electro-deposition in the setting method of collection liquid surface；
Pseudocapacitors electrode active material collection liquid surface setting method include coating, spraying, dipping, printing, printing, change
Learn deposition, electrochemical deposition；
The pseudocapacitors electrode active material is conducting polymer, and the conducting polymer is polypyrrole, poly- 3,4 ethylene
At least one of dioxy thiophene, polyaniline；
The electrical double layer capacitor electrodes active material is carbon activity material;The carbon activity material is activated carbon；
Activated carbon, acetylene black, styrene butadiene rubber sbr, carboxyl methyl cellulose are uniformly mixed in mass ratio, slurry is tuned into water,
Collection liquid surface is coated on, and is dried；Again in chemical polymerization process or electrochemical polymerization a kind of method therein in activity
Carbon surface prepares conductive polymer electrodes, and dries, and combination electrode is made；
By combination electrode roll-in, predetermined size is cut into, is dried in vacuo, diaphragm is set between anode composite and composite negative pole,
Electrolyte is added, lamination or winding are assembled into ultracapacitor.
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