CN107235490A - A kind of preparation method of electrode material for super capacitor - Google Patents
A kind of preparation method of electrode material for super capacitor Download PDFInfo
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- CN107235490A CN107235490A CN201710307294.6A CN201710307294A CN107235490A CN 107235490 A CN107235490 A CN 107235490A CN 201710307294 A CN201710307294 A CN 201710307294A CN 107235490 A CN107235490 A CN 107235490A
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- China
- Prior art keywords
- electrode material
- activated carbon
- super capacitor
- fenton reagent
- preparation
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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
- H01G11/30—Electrodes characterised by their material
- H01G11/32—Carbon-based
- H01G11/34—Carbon-based characterised by carbonisation or activation of carbon
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2006/00—Physical properties of inorganic compounds
- C01P2006/40—Electric properties
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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
- 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 method of electrode material for super capacitor, comprise the following steps：A. will activated carbon add Fenton reagent in be stirred, mixing time be 10 24 hours, after cleaned and dried with deionized water；B. the activated carbon powder after Fenton reagent is handled is put into ultrasound 5 10 hours in multi-metal oxygen aqueous acid, then is cleaned and dried with deionized water, obtain the electrode material for super capacitor.The present invention increases the specific capacity of ultracapacitor in the case where not changing activated carbon specific surface area.
Description
Technical field
The present invention relates to capacitor electrode material field, more particularly to a kind of preparation side of electrode material for super capacitor
Method.
Background technology
Ultracapacitor, with lithium ion battery, being a kind of electrochemical energy storage element.Lithium ion battery energy density
Height, but power density is low, ultracapacitor long lifespan (up to more than 100,000 times), although energy density is smaller, but power density
Greatly, it is used for making up the deficiency of performance of lithium ion battery as power-type element.It is former that traditional ultracapacitor is generally electric double layer
Reason, using activated carbon as active material, activated carbon is the common electrode material of ultracapacitor, the advantage is that surface area
Greatly, originate wide, cost is low, and shortcoming is that available surface area is not high, and specific capacity is relatively low.
It is another to there is China Patent No. to be 201510490434.9, a kind of polysaccharide-modified activated carbon is disclosed as super capacitor electrode
The preparation method of pole material, including：Carbon ball is made in polysaccharide hydro-thermal reaction first, then carbon ball is soaked with potassium hydroxide mixing
Bubble, allows potassium hydroxide fully to diffuse into carbon material, final high temperature calcining mixt so that activation of potassium hydroxide carbon ball, makes
Obtain active carbon material；The polysaccharide-modified active carbon material prepared using this method has abundant grade pore structure, larger ratio
Surface area.The preparation process of foregoing invention mainly passes through hydrothermal synthesis method,（1）This method utilizes reactor HTHP
Closed environment synthesizes required material, reactor is the common small sized reactor of chemical laboratory, at present reactor on the market
Volume specification is concentrated mainly on ml ranks, and maximum is no more than 10L, available for low dose of synthetic reaction, for large batch of life
Production can not also be realized；（2）Due to the environment of reactor internal high temperature high pressure, may cause in material preparation process exist compared with
Big potential safety hazard.
The content of the invention
In order to overcome the defect of prior art, the invention provides a kind of preparation method of electrode material for super capacitor,
This method increases the specific capacity of ultracapacitor in the case where not changing activated carbon specific surface area.
In order to solve the above-mentioned technical problem, the technical solution adopted by the present invention is：
A kind of preparation method of electrode material for super capacitor, it is characterised in that：Comprise the following steps：
A. will activated carbon add Fenton reagent in be stirred, mixing time be 10-24 hours, after cleaned and dried with deionized water
It is dry；
B. the activated carbon powder after Fenton reagent is handled is put into ultrasound 5-10 hours in multi-metal oxygen aqueous acid, then spend from
Sub- water is cleaned and dried, and obtains the electrode material for super capacitor.
The polyoxometallic acid includes H3XY12O40, H4XY12O40, wherein：X refers to any one in two kinds of elements of P, Si；Y refers to
Any one in two kinds of elements of Mo, W.
The concentration of the multi-metal oxygen aqueous acid is 2-5mol/L.
The present invention has advantages below：
The present invention is modified using Fenton reagent to activated carbon, greatly increases the quantity of activated carbon surface functional group, is improved
The wetability and chemism of activated carbon, surpass being placed in through activated carbon of the Fenton reagent after treated in multi-metal oxygen aqueous acid
Sound 5-10 hours, makes the functional group of multi-metal oxygen acid anion and activated carbon surface combine closely, so as to not change activated carbon
Increase the specific capacity of ultracapacitor in the case of specific surface area.
Embodiment
Embodiment 1
A kind of preparation method of electrode material for super capacitor, comprises the following steps：
A. the processing of Fenton reagent：Activated carbon is added and is stirred in Fenton reagent, mixing time is 10-24 hours, rear to use
Deionized water is cleaned up and dried.
B. the combination of multi-metal oxygen acid anion：Activated carbon powder after Fenton reagent is treated is placed in concentration for 2-
5mol/L H3PMo12O40Ultrasound 5-10 hours in the aqueous solution, then cleaned up and dried with deionized water, super capacitor is made
The electrode material of device.
Double layer capacitor is made in prepared electrode material, and calculates the specific capacity of electrode material（F/g）
Embodiment 2
Comprise the following steps：
A. the processing of Fenton reagent：Will activated carbon add Fenton reagent in be stirred, mixing time be 16 hours, after spend from
Sub- water is cleaned up and dried.
B. the combination of multi-metal oxygen acid anion：Activated carbon powder after Fenton reagent is treated is placed in into concentration is
3mol/L H3PW12O40Ultrasound 8 hours in the aqueous solution, then cleaned up and dried with deionized water, ultracapacitor is made
Electrode material.
Double layer capacitor is made in prepared electrode material, and calculates the specific capacity of electrode material（F/g）
Embodiment 3
Comprise the following steps：
A. the processing of Fenton reagent：Will activated carbon add Fenton reagent in be stirred, mixing time be 24 hours, after spend from
Sub- water is cleaned up and dried.
B. the combination of multi-metal oxygen acid anion：Activated carbon powder after Fenton reagent is treated is placed in into concentration is
2mol/L H4SiW12O40Ultrasound 10 hours in the aqueous solution, then cleaned up and dried with deionized water, ultracapacitor is made
Electrode material.
Double layer capacitor is made in prepared electrode material, and calculates the specific capacity of electrode material（F/g）
Embodiment 4
Comprise the following steps：
A. the processing of Fenton reagent：Will activated carbon add Fenton reagent in be stirred, mixing time be 24 hours, after spend from
Sub- water is cleaned up and dried.
B. the combination of multi-metal oxygen acid anion：Activated carbon powder after Fenton reagent is treated is placed in into concentration is
5mol/L H4SiW12O40Ultrasound 5 hours in the aqueous solution, then cleaned up and dried with deionized water, ultracapacitor is made
Electrode material.
Double layer capacitor is made in prepared electrode material, and calculates the specific capacity of electrode material（F/g）
Comparative example 1
Handled without Fenton reagent, activated carbon is directly placed in H3PMo12O40Ultrasound 8 hours in the aqueous solution, then use deionized water
Clean up and dry, be used as the electrode material of ultracapacitor.
Comparative example 2
Without multi-metal oxygen acid treatment, activated carbon is only handled with Fenton reagent, and is cleaned up and is dried with deionized water, is made
For the electrode material of ultracapacitor.
Table 1 is each embodiment and the specific capacity Comparative result of the ultracapacitor prepared by comparative example the electrode obtained material
| Group | Embodiment 1 | Embodiment 2 | Embodiment 3 | Embodiment 4 | Comparative example 1 | Comparative example 2 |
| Specific capacity（F/g） | 120.5 | 137.9 | 119.7 | 145.6 | 97.1 | 88.2 |
From the point of view of testing result, using Fenton reagent and the electrode material specific capacity ratio of multi-metal oxygen acid treatment without Fenton reagent
Processing and the electrode material specific capacity height without multi-metal oxygen acid treatment, embody both coefficient results.
Claims (3)
1. a kind of preparation method of electrode material for super capacitor, it is characterised in that：Comprise the following steps：
A. will activated carbon add Fenton reagent in be stirred, mixing time be 10-24 hours, after cleaned and dried with deionized water
It is dry；
B. the activated carbon powder after Fenton reagent is handled is put into ultrasound 5-10 hours in multi-metal oxygen aqueous acid, then spend from
Sub- water is cleaned and dried, and obtains the electrode material for super capacitor.
2. a kind of preparation method of electrode material for super capacitor according to claim 1, it is characterised in that：It is described more golden
Belonging to oxygen acid includes H3XY12O40, H4XY12O40, wherein：X refers to any one in two kinds of elements of P, Si；Y, which refers in two kinds of elements of Mo, W, to be appointed
Meaning is a kind of.
3. a kind of preparation method of electrode material for super capacitor according to claim 1, it is characterised in that：It is described more golden
The concentration for belonging to oxygen aqueous acid is 2-5mol/L.
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| CN201710307294.6A CN107235490B (en) | 2017-05-03 | 2017-05-03 | A kind of preparation method of electrode material for super capacitor |
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|---|---|---|---|
| CN201710307294.6A CN107235490B (en) | 2017-05-03 | 2017-05-03 | A kind of preparation method of electrode material for super capacitor |
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| Publication Number | Publication Date |
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| CN107235490A true CN107235490A (en) | 2017-10-10 |
| CN107235490B CN107235490B (en) | 2019-05-03 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101575096A (en) * | 2009-06-02 | 2009-11-11 | 桂林电子科技大学 | Method for preparing carbon nanotube grafted with vinyl macromolecular chain on the surface |
| 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 |
| CN104051717A (en) * | 2014-06-16 | 2014-09-17 | 中国东方电气集团有限公司 | Electrode material for lithium polyoxometalate polymer lithium ion battery and preparation method of material |
| CN104124069A (en) * | 2014-06-20 | 2014-10-29 | 四川能宝电源制造有限公司 | High-specific surface area functional active carbon material and electrode slurry preparation method |
| CN105236406A (en) * | 2015-09-14 | 2016-01-13 | 中国东方电气集团有限公司 | Supercapacitor spherical active carbon preparation method |
-
2017
- 2017-05-03 CN CN201710307294.6A patent/CN107235490B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101575096A (en) * | 2009-06-02 | 2009-11-11 | 桂林电子科技大学 | Method for preparing carbon nanotube grafted with vinyl macromolecular chain on the surface |
| 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 |
| CN104051717A (en) * | 2014-06-16 | 2014-09-17 | 中国东方电气集团有限公司 | Electrode material for lithium polyoxometalate polymer lithium ion battery and preparation method of material |
| CN104124069A (en) * | 2014-06-20 | 2014-10-29 | 四川能宝电源制造有限公司 | High-specific surface area functional active carbon material and electrode slurry preparation method |
| CN105236406A (en) * | 2015-09-14 | 2016-01-13 | 中国东方电气集团有限公司 | Supercapacitor spherical active carbon preparation method |
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