CN110473714A - A kind of fast preparation method of high-performance super capacitor film - Google Patents
A kind of fast preparation method of high-performance super capacitor film Download PDFInfo
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- CN110473714A CN110473714A CN201910761338.1A CN201910761338A CN110473714A CN 110473714 A CN110473714 A CN 110473714A CN 201910761338 A CN201910761338 A CN 201910761338A CN 110473714 A CN110473714 A CN 110473714A
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- film
- super capacitor
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- mixed slurry
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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
- H01G11/22—Electrodes
- H01G11/26—Electrodes characterised by their structure, e.g. multi-layered, porosity or surface features
-
- 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
- H01G11/84—Processes for the manufacture of hybrid or EDL capacitors, or components thereof
- H01G11/86—Processes for the manufacture of hybrid or EDL capacitors, or components thereof specially adapted for electrodes
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/13—Energy storage using capacitors
Abstract
The invention discloses a kind of fast preparation methods of high-performance super capacitor film, including prepare mixed slurry: active material, Kynoar solution and conductive carbon black being mixed and stirred in proportion, obtain mixed slurry；Extractant pore-creating film forming: mixed slurry being evenly coated in and ties net glass sheet surface, scrapes certain thickness film with scraper, and film distilled water flushing or immersion are extracted, and forms film.The present invention meets the characteristic of MJPZ using extraction rate difference Kynoar solution of the N-Methyl pyrrolidone in different solvents, quickly prepare a kind of high-performance porous membrane that can be used for supercapacitor, this method does not limit active material strictly, and preparation process is simple and quick, energy large area preparation, the problem of being a kind of preparation method with widely applied supercapacitor high performance thin film, can solve complicated current traditional capacitor thin film preparation process and limited performance.
Description
Technical field
The present invention relates to the technology of preparing of capacitor film, specifically a kind of high-performance super capacitor film it is quick
Preparation method.
Background technique
Supercapacitor method for manufacturing thin film common at present mostly uses polytetrafluoroethylene (PTFE) lotion and conductive black
It is mixed in a certain ratio grinding preparation with active material, this method complex procedures take a long time, and most active materials are by PTFE
Package, can not play a role, seriously limit the chemical property of the electrode obtained.Thin-film electrode material three-dimensional architecture has
Active material is avoided to reunite, the active site of abundant exposed material promotes the mass transfer of reaction process, or even introduces new structure
The effects of effect relationship, is of great significance to the performance for improving electrode material, therefore in supercapacitor, lithium battery, electro-catalysis
Equal energy storages are achieved in conversion field to be widely applied.
Although the method that researcher has developed many electrode material three-dimensional architectures, such as electrochemical deposition, hydro-thermal method
Growth activity material, in the methods of direct drop coating active material slurry of three-dimensional template.However, these methods are mixed compared to common
Grinding method is closed, generally existing performance promotion is unobvious, and three-dimensional architecture is unstable, and active material load capacity is low, three-dimensional template choosing
Difficulty is selected, material universality is not high, and preparation method is complicated, at high cost, the problems such as time length, therefore develops a kind of general
, the time is short, at low cost, the preparation method of the simple three-dimensional architecture polarizing electrode of process, equal to scientific research or even actual production
It is of great significance.
Summary of the invention
The purpose of the present invention is to provide a kind of fast preparation methods of high-performance super capacitor film, on solving
State the problem of proposing in background technique.
To achieve the above object, the invention provides the following technical scheme:
A kind of fast preparation method of high-performance super capacitor film, comprising the following steps:
1, it prepares mixed slurry: active material, Kynoar solution and conductive carbon black being mixed and stirred in proportion, obtained
Mixed slurry；
2, extractant pore-creating forms a film: taking the mixed slurry prepared in step 1 to be evenly coated in and ties net glass sheet surface, is scraped with scraper
Certain thickness film out extracts film distilled water flushing or be soaked in distilled water, forms film.
As a further solution of the present invention: in the step 1, active material, Kynoar solution and conductive carbon black
The mixing of 8:1:1 in mass ratio.
As a further solution of the present invention: the active material is two-dimensional material Ti3C2Tx。
As a further solution of the present invention: the Kynoar solution is using N-Methyl pyrrolidone as solvent.
As a further solution of the present invention: the Kynoar solution concentration is 0.04-0.07g/ml.
As a further solution of the present invention: the mixed slurry mixing time is 20-30h, temperature 20-30
℃。
Compared with prior art, the beneficial effects of the present invention are: the quick preparation supercapacitor that present example proposes
The method of film, it is not only easy to operate, it is time-consuming short, and the film prepared with traditional preparation methods compared with more excellent
Chemical property, and can large area preparation, can quickly prepare high performance supercapacitor film to be industrial think of is provided
Road.
Detailed description of the invention
Fig. 1 is that the Ti of extraction pore-creating preparation is utilized in the present invention3C2TxThe SEM shape appearance figure of film.
Fig. 2 is the Ti in the present invention in embodiment one3C2TxLoop test knot of film when as electrode of super capacitor
Fruit figure.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Embodiment one,
A kind of fast preparation method of high-performance super capacitor film, comprising the following steps:
1, the preparation of mixed slurry: by Ti3C2TxPowder and Kynoar (PVDF, 0.05g/ml, with N-Methyl pyrrolidone
(NMP) be solvent), conductive carbon black according to the ratio of mass ratio 8:1:1 be placed in a beaker stirring for 24 hours, 26 DEG C of whipping temp, formed
Uniformly mixed slurry；
2, extractant pore-creating forms a film: taking appropriate mixed slurry to be evenly coated in and ties net glass sheet surface, scrapes one with scraper
Determine the film (thickness is adjustable) of thickness, select distilled water as extractant, film is soaked in distilled water, or with distilled water into
Row rinses, and completes extraction process, and form film, can use directly as electrode of super capacitor.
In above-mentioned steps, by distilled water as extractant, Rapid Extraction goes out in the mixed slurry containing active material
Moisture forms cellular structure abundant, meanwhile, the characteristic of MJPZ is met using PVDF, quickly forms one during extraction
Zhang Kongdao film abundant, when as electrode of super capacitor, electrolyte quickly can sufficiently infiltrate electrode material and occur anti-
It answers, substantially increases the exchange rate of ion, to show excellent chemical property.
The film of above-mentioned preparation is subjected to electron microscope scanning, obtains scanning electron microscope (SEM) photograph as shown in Figure 1, and to super electricity
Container electrode uses three electrode test methods, and using the film of preparation as working electrode, carbon-point is used as to electrode, and mercury/sulfuric acid is sub-
Mercury is tested under conditions of the sulfuric acid of 1 mol/L is as electrolyte as reference electrode, and test method includes cyclic voltammetric
Method, constant current charge-discharge, cycle performance test etc., test result such as Fig. 2, it is seen that after multiple loop test, above-mentioned preparation
Electrode capacity retention rate still can reach 94% or so, it is seen that its electrochemical performance.
Embodiment two, in the embodiment of the present invention the following steps are included:
1, the preparation of mixed slurry: by commercial active carbon and Kynoar (PVDF, 0.05g/ml, with N-Methyl pyrrolidone
(NMP) be solvent), conductive carbon black according to the ratio of mass ratio 8:1:1 be placed in a beaker stirring 24 h, form uniformly mixed slurry
Material；Similarly, it selects distilled water as extractant, slurry is applied to glass sheet surface, is soaked in distilled water and is extracted, is made
Hole film forming, forms three dimensional apertured film electrode.
It is obvious to a person skilled in the art that invention is not limited to the details of the above exemplary embodiments, Er Qie
In the case where without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matter
From the point of view of which point, the present embodiments are to be considered as illustrative and not restrictive, and the scope of the present invention is by appended power
Benefit requires rather than above description limits, it is intended that all by what is fallen within the meaning and scope of the equivalent elements of the claims
Variation is included within the present invention.Any reference signs in the claims should not be construed as limiting the involved claims.
In addition, it should be understood that although this specification is described in terms of embodiments, but not each embodiment is only wrapped
Containing an independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should
It considers the specification as a whole, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
The other embodiments being understood that.
Claims (6)
1. a kind of fast preparation method of high-performance super capacitor film, it is characterised in that: the following steps are included:
(1), it prepares mixed slurry: active material, Kynoar solution and conductive carbon black being mixed and stirred in proportion, obtained
To mixed slurry；
(2), extractant pore-creating forms a film: taking the mixed slurry prepared in step 1 to be evenly coated in and ties net glass sheet surface, uses scraper
Certain thickness film is scraped, film distilled water flushing or be soaked in distilled water is extracted, forms film.
2. a kind of fast preparation method of high-performance super capacitor film according to claim 1, it is characterised in that:
In the step 1, active material, Kynoar solution are mixed with conductive carbon black 8:1:1 in mass ratio.
3. a kind of fast preparation method of high-performance super capacitor film according to claim 2, it is characterised in that:
The active material is two-dimensional material Ti3C2Tx。
4. a kind of fast preparation method of high-performance super capacitor film according to claim 2, it is characterised in that:
The Kynoar solution is using N-Methyl pyrrolidone as solvent.
5. a kind of fast preparation method of high-performance super capacitor film according to claim 4, it is characterised in that:
The Kynoar solution concentration is 0.04-0.07g/ml.
6. a kind of fast preparation method of high-performance super capacitor film according to claim 5, it is characterised in that:
The mixed slurry mixing time is 20-30h, and temperature is 20-30 DEG C.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111146019A (en) * | 2019-12-02 | 2020-05-12 | 上海交通大学 | Preparation method of porous hydrogel film electrode |
| CN111320242A (en) * | 2020-03-12 | 2020-06-23 | 江苏美淼环保科技有限公司 | Hydrophilic self-supporting multi-level pore passage electro-adsorption electrode, preparation method and membrane casting solution |
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| CN106532104A (en) * | 2015-09-09 | 2017-03-22 | 中国科学院大连化学物理研究所 | Gel electrolyte porous electrode for lithium-sulfur battery and preparation and application of gel electrolyte porous electrode |
| CN106847542A (en) * | 2013-12-02 | 2017-06-13 | 天津大学 | Preparation method with excellent high rate performance combination electrode material |
| CN107845774A (en) * | 2016-09-21 | 2018-03-27 | 中国科学院大连化学物理研究所 | Self-supporting porous electrode preparation method and its electrode and application |
| CN108123104A (en) * | 2016-11-26 | 2018-06-05 | 中国科学院大连化学物理研究所 | A kind of three continuous Si/C porous electrodes and its application |
| CN108122687A (en) * | 2016-11-28 | 2018-06-05 | 中国科学院大连化学物理研究所 | A kind of flexible self-supporting porous electrode and its preparation and application |
| CN109449003A (en) * | 2018-08-30 | 2019-03-08 | 广西大学 | A kind of height ratio capacity Ti based on XRD3C2TxElectrode material feature prejudges method for distinguishing |
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| CN101339848A (en) * | 2007-07-06 | 2009-01-07 | 中国科学院金属研究所 | Lithium ion super capacitor and assembling method thereof |
| CN106847542A (en) * | 2013-12-02 | 2017-06-13 | 天津大学 | Preparation method with excellent high rate performance combination electrode material |
| CN106532104A (en) * | 2015-09-09 | 2017-03-22 | 中国科学院大连化学物理研究所 | Gel electrolyte porous electrode for lithium-sulfur battery and preparation and application of gel electrolyte porous electrode |
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| CN111146019A (en) * | 2019-12-02 | 2020-05-12 | 上海交通大学 | Preparation method of porous hydrogel film electrode |
| CN111146019B (en) * | 2019-12-02 | 2022-03-01 | 上海交通大学 | Preparation method of porous hydrogel film electrode |
| CN111320242A (en) * | 2020-03-12 | 2020-06-23 | 江苏美淼环保科技有限公司 | Hydrophilic self-supporting multi-level pore passage electro-adsorption electrode, preparation method and membrane casting solution |
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Application publication date: 20191119 |