CN108766789A - A kind of preparation method of super capacitor electrode pole piece - Google Patents
A kind of preparation method of super capacitor electrode pole piece Download PDFInfo
- Publication number
- CN108766789A CN108766789A CN201810425705.6A CN201810425705A CN108766789A CN 108766789 A CN108766789 A CN 108766789A CN 201810425705 A CN201810425705 A CN 201810425705A CN 108766789 A CN108766789 A CN 108766789A
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- China
- Prior art keywords
- super capacitor
- pole piece
- preparation
- capacitor electrode
- carbon
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES OR LIGHT-SENSITIVE DEVICES, OF THE ELECTROLYTIC TYPE
- H01G11/00—Hybrid capacitors, i.e. capacitors having different positive and negative electrodes; Electric double-layer [EDL] capacitors; Processes for the manufacture thereof or of parts thereof
- H01G11/84—Processes for the manufacture of hybrid or EDL capacitors, or components thereof
- H01G11/86—Processes for the manufacture of hybrid or EDL capacitors, or components thereof specially adapted for electrodes
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES OR LIGHT-SENSITIVE DEVICES, OF THE ELECTROLYTIC TYPE
- H01G11/00—Hybrid capacitors, i.e. capacitors having different positive and negative electrodes; Electric double-layer [EDL] capacitors; Processes for the manufacture thereof or of parts thereof
- H01G11/22—Electrodes
- H01G11/24—Electrodes characterised by structural features of the materials making up or comprised in the electrodes, e.g. form, surface area or porosity; characterised by the structural features of powders or particles used therefor
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES OR LIGHT-SENSITIVE DEVICES, OF THE ELECTROLYTIC TYPE
- H01G11/00—Hybrid capacitors, i.e. capacitors having different positive and negative electrodes; Electric double-layer [EDL] capacitors; Processes for the manufacture thereof or of parts thereof
- H01G11/22—Electrodes
- H01G11/30—Electrodes characterised by their material
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES OR LIGHT-SENSITIVE DEVICES, OF THE ELECTROLYTIC TYPE
- H01G11/00—Hybrid capacitors, i.e. capacitors having different positive and negative electrodes; Electric double-layer [EDL] capacitors; Processes for the manufacture thereof or of parts thereof
- H01G11/22—Electrodes
- H01G11/30—Electrodes characterised by their material
- H01G11/32—Carbon-based
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/13—Energy storage using capacitors
Abstract
The invention discloses a kind of preparation methods of super capacitor electrode pole piece, it is that polyoxometallic acid lithium salts, conductive agent and porous carbon materials are prepared into resulting mixture, mixture is coated to using plasma spraying on collector again, form electrode slices for super capacitor, this method will not reduce the electric conductivity of electrode plates, and directly can be prepared into electrode slice by plasma spraying, without stirring complicated processes such as coating, activity time is reduced, production efficiency is improved.
Description
Technical field
The present invention relates to supercapacitor technologies field more particularly to a kind of preparation methods of super capacitor electrode pole piece.
Background technology
Ultracapacitor is also known as farad capacitor, and fake capacitance is the electronic device of high speed development in recent years.It is close with its high power
Degree, long-life are famous.The customary preparation methods of super capacitor are similar with lithium battery, and slurry is prepared for stirring, coating, slice etc.,
Production procedure is complicated, and production efficiency is not high.Currently, be intended to use bonding agent in the electrode plates preparation method of ultracapacitor,
It is well known that bonding agent is to play bonding effect between active particles and between active matter and collector, amount is very little, does not have
Bonding effect；Amount is too many, and can reduce electric conductivity.
Such as Chinese patent notification number CN106252099A, disclose a kind of ultracapacitor, including electrode slice, isolation film,
Pole and shell, electrode slice include collector, are set to the primer coating of collection liquid surface and are set to primer coating surface
Top coat, primer coating and top coat include active material, conductive agent and bonding agent, and the bonding agent of primer coating
Content is less than the content of the bonding agent of top coat；The active material of primer coating and top coat includes carbon material and conduction
Polymer；It includes graphene fiber and carbon nanotube that carbon material, which has nucleocapsid, stratum nucleare, and shell is manganese dioxide function
Layer；Conducting polymer is at least one of polyaniline, polythiophene and polypyrrole.It is equally used in the preparation of above-mentioned capacitor
Bonding agent, also can amount it is very little, do not have bonding effect；The phenomenon that measuring too much, and electric conductivity can be reduced.
Invention content
In order to overcome the deficiencies of existing technologies, the present invention provides a kind of preparation methods of super capacitor electrode pole piece, should
Mixture is coated to using plasma spraying technology on collector by preparation method, and the dosage for overcoming bonding agent not easy to control is asked
Topic.
In order to solve the above-mentioned technical problem, the technical solution adopted by the present invention is：
A kind of preparation method of super capacitor electrode pole piece, it is characterised in that：By polyoxometallic acid lithium salts, conductive agent and porous carbon
Material prepares resulting mixture, then mixture is coated to using plasma spraying on collector, forms electrode of super capacitor pole
Piece.
A kind of preparation method of super capacitor electrode pole piece, which is characterized in that include the following steps：
(1) example takes the polyoxometallic acid lithium salts, the conductive agent of 5-10% and the porous carbon materials of 70-80% of 10-20% in mass ratio
It is uniformly mixed resulting mixture；
(2) it and then adds mixture in powder feeder；
(3) mixture is coated to using plasma spraying on collector with the speed of 1-20m/min again, the thickness of coating is
20-100 microns, form super capacitor electrode slice.
The polyoxometallic acid lithium salts is Li3XY12O40、Li4XY12O40One or more of mixture（X refer to P,
Any one in two kinds of elements of Si；Y refers to any one in two kinds of elements of Mo, W.
The porous carbon materials are activated carbon, mesoporous carbon, carbon aerogels, carbon fiber, carbon nanotube, carbon black, hard charcoal, graphite
The mixture of one or more of alkene.
The conductive agent is conductive black, electrically conductive graphite KS-6 or conductive fiber VGCF.
The collector is copper foil, aluminium foil, graphite paper or nickel foam.
The present invention has the following advantages：
In the preparation method of the present invention（1）There is no bonding agent, and electrode slice is prepared using plasma spray shooting method, due to being high speed
On injection to collector, it can be also bonded without bonding agent securely, avoid the few technical deficiency of bonding agent usage amount volume（Measure
Very little, bonding effect is not had；Amount is too many, and can reduce electric conductivity）, therefore the electric conductivity of electrode plates will not be reduced.（2）This
Electrode slice directly can be prepared by plasma spraying in method, without complicated processes such as stirring coatings, reduce activity time,
Improve production efficiency.（3）The lithium ion in polyoxometallic acid lithium salts in active matter can transmit in its three-dimensional framework, cooperation
Lithium ion in lithium battery electrolytes cooperates with the Hole bottom cavity blast of porous carbon, can greatly improve the performance of ultracapacitor.This method
The capacitor electrode material of preparation will greatly promote the performance of ultracapacitor.
Specific implementation mode
With reference to embodiment, the present invention is further elaborated, but the present invention is not limited to following embodiment, the sides
Method is conventional method unless otherwise instructed, and the material can obtain unless otherwise instructed from open commercial sources.
Embodiment 1
A kind of preparation method of super capacitor electrode pole piece, polyoxometallic acid lithium salts, conductive agent and porous carbon materials are configured to
Mixture, then mixture is coated to using plasma spraying on collector, form electrode slices for super capacitor.
Specifically：Include the following steps：
(1) example takes the polyoxometallic acid lithium salts Li of raw material 20% in mass ratio3PMo12O40, 5% conductive agent and 75% activated carbon it is mixed
Close uniform resulting mixture；
(2) it and then adds mixture in powder feeder；
(3) mixture is coated to using plasma spraying on collector with the speed of 1-20m/min, the thickness of coating is 20-
100um forms electrode slices for super capacitor.
(4) coated electrode slices for super capacitor is assembled into super capacitor by the preparation process of super capacitor
Device, electrolyte used are the conventional electrolysis liquid of lithium ion battery, and wherein electrolyte is LiPF6.
(5) test capacity divided by active matter quality are obtained into electrode by the progress volume test of assembled ultracapacitor
The specific capacity of material（F/g）.
Embodiment 2
Preparation method and test method only change polyoxometallic acid lithium salts into Li with embodiment 14PW12O40, ratio changes 30% into
Polyoxometallic acid lithium salts Li4PW12O40, 5% conductive agent and 65% carbon nanotube.
Embodiment 3
Preparation method and test method only change activated carbon into carbon aerogels, mass ratio is the same as embodiment 1 with embodiment 1.
Embodiment 4
Preparation method and test method only change polyoxometallic acid lithium salts into Li with embodiment 14SiW12O40, activated carbon changes
At carbon fiber, ratio is the same as embodiment 1.
Comparative example 1
Do not add polyoxometallic acid lithium salts, the conductive agent of raw material 5% and 95% activated carbon taken to be uniformly mixed resulting mixture, carry out etc. from
Son injection forms pole piece and is prepared into electrode material for super capacitor progress assembling test.
Comparative example 2
Plasma spray shooting method is not used, and super capacitor electrode slice is prepared using convention stir coating method（Stir slurry
Ratio is 5% conductive agent, 92% activated carbon, 3%PTFE.Wherein PTFE full name polytetrafluoroethylene (PTFE), act as bonding agent）And it is prepared into
Electrode material for super capacitor carries out assembling test.
By above-described embodiment 1-4 and comparative example, gained capacitance does volume test, and calculates specific capacity the results detailed under
Table：
As can be seen from the above table, using polyoxometallic acid lithium salts and using the electrode plates of plasma spray shooting method preparation in capacitance
In device test, specific capacity is much larger than comparative example.
Claims (6)
1. a kind of preparation method of super capacitor electrode pole piece, it is characterised in that：By polyoxometallic acid lithium salts, conductive agent and porous
Carbon material prepares resulting mixture, then mixture is coated to using plasma spraying on collector, forms electrode of super capacitor
Pole piece.
2. a kind of preparation method of super capacitor electrode pole piece according to claim 1, which is characterized in that including walking as follows
Suddenly：
(1) example takes the polyoxometallic acid lithium salts, the conductive agent of 5-10% and the porous carbon materials of 70-80% of 10-20% in mass ratio
It is uniformly mixed resulting mixture；
(2) it and then adds mixture in powder feeder；
(3) mixture is coated to using plasma spraying on collector with the speed of 1-20m/min again, the thickness of coating is
20-100 microns, form super capacitor electrode slice.
3. a kind of preparation method of super capacitor electrode pole piece according to claim 1 or 2, it is characterised in that：It is described more
Oxometallic acid lithium salts is Li3XY12O40、Li4XY12O40One or more of mixture（X, which refers in two kinds of elements of P, Si, to be appointed
Meaning is a kind of；Y refers to any one in two kinds of elements of Mo, W.
4. a kind of preparation method of super capacitor electrode pole piece according to claim 1 or 2, it is characterised in that：It is described more
Hole carbon material be activated carbon, mesoporous carbon, carbon aerogels, carbon fiber, carbon nanotube, carbon black, hard charcoal, one kind in graphene or
A variety of mixtures.
5. a kind of preparation method of super capacitor electrode pole piece according to claim 1 or 2, it is characterised in that：It is described to lead
Electric agent is conductive black, electrically conductive graphite KS-6 or conductive fiber VGCF.
6. a kind of preparation method of super capacitor electrode pole piece according to claim 1 or 2, it is characterised in that：The collection
Fluid is copper foil, aluminium foil, graphite paper or nickel foam.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810425705.6A CN108766789A (en) | 2018-05-07 | 2018-05-07 | A kind of preparation method of super capacitor electrode pole piece |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810425705.6A CN108766789A (en) | 2018-05-07 | 2018-05-07 | A kind of preparation method of super capacitor electrode pole piece |
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| CN201810425705.6A Pending CN108766789A (en) | 2018-05-07 | 2018-05-07 | A kind of preparation method of super capacitor electrode pole piece |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104051734A (en) * | 2014-06-16 | 2014-09-17 | 中国东方电气集团有限公司 | Electrode material for polyoxometallate carbon nanotube lithium ion battery and preparation method of electrode material |
| CN104795542A (en) * | 2015-01-06 | 2015-07-22 | 宁波南车新能源科技有限公司 | A plasma injection preparing method of a nanometer lithium ion composite anode |
| CN105977495A (en) * | 2016-05-11 | 2016-09-28 | 中国东方电气集团有限公司 | Preparation method of graphite paper for current collector of lithium-ion battery |
-
2018
- 2018-05-07 CN CN201810425705.6A patent/CN108766789A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104051734A (en) * | 2014-06-16 | 2014-09-17 | 中国东方电气集团有限公司 | Electrode material for polyoxometallate carbon nanotube lithium ion battery and preparation method of electrode material |
| CN104795542A (en) * | 2015-01-06 | 2015-07-22 | 宁波南车新能源科技有限公司 | A plasma injection preparing method of a nanometer lithium ion composite anode |
| CN105977495A (en) * | 2016-05-11 | 2016-09-28 | 中国东方电气集团有限公司 | Preparation method of graphite paper for current collector of lithium-ion battery |
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Application publication date: 20181106 |