CN104867692A - Copper-tin-alloy-coated straw based active carbon electrode material and preparation method thereof - Google Patents
Copper-tin-alloy-coated straw based active carbon electrode material and preparation method thereof Download PDFInfo
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- CN104867692A CN104867692A CN201510157800.9A CN201510157800A CN104867692A CN 104867692 A CN104867692 A CN 104867692A CN 201510157800 A CN201510157800 A CN 201510157800A CN 104867692 A CN104867692 A CN 104867692A
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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
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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
-
- 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
- H01G11/38—Carbon pastes or blends; Binders or additives therein
-
- 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
- H01G11/48—Conductive polymers
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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 copper-tin-alloy-coated straw based active carbon electrode material which is characterized in that the material is prepared by the following parts of raw materials by weight: nickel oxide 2-3, iron carbonate 1-2, p-aminophenol 1-2, iron lithium manganate 2-3, ammonium tetrathiomolybdate 2-3, copper-tin alloy 4-6, polyaniline composite material 3-5, straw 1000-1200, anhydrous potassium hydroxide 3-5 and deionized water 5-10. The polyaniline composite material has advantages of low price and high charge density and is added in the electrode material for enhancing conductivity and electrical storage property. The copper alloy has characteristics of excellent conductivity, thermal conductivity and corrosion resistance and is added in the electrode material for enhancing cycle index, conductivity and performance of a super-capacitor.
Description
Technical field
The present invention relates to chemical energy source Material Field, straw base active carbon electrode material that particularly a kind of signal bronze is coated and preparation method thereof.
Background technology
In ultracapacitor field, electrode material is the core component of ultracapacitor, and its composition, the performance of structures and characteristics on capacitor play conclusive impact.Research shows, the matched well of rational pore-size distribution and aperture and electrolyte ion, adds higher specific area, can obtain higher capacitance.Rational pore-size distribution is to be conducive to transporting of electrolyte ion, and the matched well of aperture and electrolyte ion is adsorbed to obtain good electric double layer, and higher specific area is the prerequisite obtaining higher capacitance value.In addition, dopant impurity atoms is carried out to porous carbon materials, a certain amount of fake capacitance can be obtained, improve the capacitance of porous carbon materials further.
The present invention carries out charing process by physical method to biomass carbon, without the need to high-temperature service, economize on resources, adopting the activation of potassium hydroxide of mixed vapour and melting, improve the specific surface area and porosity of active carbon, improve the electric conductivity of capacitor, and the conductive materials adulterated on this basis and material surface adopt copper alloy carry out coated, copper alloy has the excellent characteristic such as conductivity, thermal conductivity, corrosion resistance, the cycle-index of capacitor can be extended and strengthen conductivity, improving the performance of ultracapacitor.
Summary of the invention
The object of this invention is to provide coated straw base active carbon electrode material of a kind of signal bronze and preparation method thereof.
In order to realize object of the present invention, the present invention is by following scheme implementation:
The straw base active carbon electrode material that signal bronze is coated, is made up of the raw material of following weight portion: nickel oxide 2-3, ferric carbonate 1-2, para-aminophenol 1-2, iron LiMn2O4 2-3, four thio ammonium molybdate 2-3, signal bronze 4-6, polyaniline composite material 3-5, stalk 1000-1200, anhydrous potassium hydroxide 3-5, deionized water 5-10;
Described polyaniline composite material is made up of the raw material of following weight portion: p-methyl benzenesulfonic acid 4-6, hydrochloric acid 6-8, nano silicon 3-5, imvite 2-4, aniline 8-12, ammonium persulfate 0.4-0.7, deionized water 30-50, p-methyl benzenesulfonic acid is added in the hydrochloric acid solution of 4-6mol/l by preparation method, stir formation mixed solution, again by nano silicon, imvite is added to ultrasonic disperse 30-50 minute in mixed solution, add p-methyl benzenesulfonic acid quality 0.5-2 aniline monomer doubly again, stir under ice-water bath and form homogeneous latex emulsion in 1-2 hour, again ammonium persulfate is slowly added drop-wise in emulsion, continue stirring reaction 3-4 hour, decompress filter, solids of sedimentation washs into neutrality with deionized water and p-methyl benzenesulfonic acid successively, vacuumize 8-12 hour under 80-90 ° of C, polyaniline composite material can be obtained.
The straw base active carbon electrode material that a kind of signal bronze of the present invention is coated, be made up of following concrete step:
(1) stalk is cleaned up post-drying, moisture controls at about 20-25%, isolated air obtains biomass carbon through normal temperature physics charing accumulation in 6-8 hour, again this biomass carbon is ground into particle, be added in fluidized bed furnace, pass into the steam and carbon dioxide gas mixture that are preheated to 300-400 ° of C in advance, under 800-1000 ° of C, carry out oxidation reaction 1-2 hour, be added to after taking-up in the anhydrous potassium hydroxide of melting, obtain active carbon with high specific surface area for subsequent use;
(2) four thio ammonium molybdate, para-aminophenol are added in the aqueous solution of ethanol, the product of step (1) and other residual componentss except signal bronze are added after stirring and dissolving, thermal agitation is added under 80-100 ° of C, pure ammonia is passed into after drying, under 500-600 ° of C, be incubated 50-100 minute, be crushed to 200-400 order powder after being then cooled to rapidly room temperature for subsequent use;
(3) signal bronze is heated to molten condition mix with the product of step (2).
Advantage of the present invention is: polyaniline composite material of the present invention has the high advantage of low price, charge density, adds in electrode material and can improve conductivity and accumulate performance; Copper alloy has the excellent characteristic such as conductivity, thermal conductivity, corrosion resistance, adds in electrode material and can improve cycle-index, strengthens conductivity, improve the performance of ultracapacitor.
specific embodiments
Below by instantiation, the present invention is described in detail.
The straw base active carbon electrode material that signal bronze is coated, is made up of the raw material of following weight portion (kilogram): nickel oxide 2, ferric carbonate 1, para-aminophenol 1, iron LiMn2O4 2, four thio ammonium molybdate 3, signal bronze 5, polyaniline composite material 4, stalk 1200, anhydrous potassium hydroxide 4, deionized water 10;
Described polyaniline composite material is made up of the raw material of following weight portion (kilogram): p-methyl benzenesulfonic acid 5, hydrochloric acid 7, nano silicon 5, imvite 3, aniline 10, ammonium persulfate 0.4, deionized water 35, p-methyl benzenesulfonic acid is added in the hydrochloric acid solution of 4-6mol/l by preparation method, stir formation mixed solution, again by nano silicon, imvite is added to ultrasonic disperse 30-50 minute in mixed solution, add p-methyl benzenesulfonic acid quality 0.5-2 aniline monomer doubly again, stir under ice-water bath and form homogeneous latex emulsion in 1-2 hour, again ammonium persulfate is slowly added drop-wise in emulsion, continue stirring reaction 3-4 hour, decompress filter, solids of sedimentation washs into neutrality with deionized water and p-methyl benzenesulfonic acid successively, vacuumize 8-12 hour under 80-90 ° of C, polyaniline composite material can be obtained.
The straw base active carbon electrode material that a kind of signal bronze of the present invention is coated, be made up of following concrete step:
(1) stalk is cleaned up post-drying, moisture controls at about 20-25%, isolated air obtains biomass carbon through normal temperature physics charing accumulation in 6-8 hour, again this biomass carbon is ground into particle, be added in fluidized bed furnace, pass into the steam and carbon dioxide gas mixture that are preheated to 300-400 ° of C in advance, under 800-1000 ° of C, carry out oxidation reaction 1-2 hour, be added to after taking-up in the anhydrous potassium hydroxide of melting, obtain active carbon with high specific surface area for subsequent use;
(2) four thio ammonium molybdate, para-aminophenol are added in the aqueous solution of ethanol, the product of step (1) and other residual componentss except signal bronze are added after stirring and dissolving, thermal agitation is added under 80-100 ° of C, pure ammonia is passed into after drying, under 500-600 ° of C, be incubated 50-100 minute, be crushed to 200-400 order powder after being then cooled to rapidly room temperature for subsequent use;
(3) signal bronze is heated to molten condition mix with the product of step (2).
Electrode material and conductive agent, binding agent are proportionally mixed, laminated by roller machine, be pressed in after drying on stainless (steel) wire collector, make ultracapacitor, its reference electrode is Ag/AgCl electrode, electrolyte is the sulfuric acid solution of 1mol/l, in the voltage range of-0.2V to 0.8V, carry out constant current charge-discharge test, when electric current is 0.2A/g, ratio capacitance is 256F/g, when electric current is 10A/g, ratio capacitance is 183F/g.
Claims (2)
1. the straw base active carbon electrode material that a signal bronze is coated, it is characterized in that, be made up of the raw material of following weight portion: nickel oxide 2-3, ferric carbonate 1-2, para-aminophenol 1-2, iron LiMn2O4 2-3, four thio ammonium molybdate 2-3, signal bronze 4-6, polyaniline composite material 3-5, stalk 1000-1200, anhydrous potassium hydroxide 3-5, deionized water 5-10;
Described polyaniline composite material is made up of the raw material of following weight portion: p-methyl benzenesulfonic acid 4-6, hydrochloric acid 6-8, nano silicon 3-5, imvite 2-4, aniline 8-12, ammonium persulfate 0.4-0.7, deionized water 30-50, p-methyl benzenesulfonic acid is added in the hydrochloric acid solution of 4-6mol/l by preparation method, stir formation mixed solution, again by nano silicon, imvite is added to ultrasonic disperse 30-50 minute in mixed solution, add p-methyl benzenesulfonic acid quality 0.5-2 aniline monomer doubly again, stir under ice-water bath and form homogeneous latex emulsion in 1-2 hour, again ammonium persulfate is slowly added drop-wise in emulsion, continue stirring reaction 3-4 hour, decompress filter, solids of sedimentation washs into neutrality with deionized water and p-methyl benzenesulfonic acid successively, vacuumize 8-12 hour under 80-90 ° of C, polyaniline composite material can be obtained.
2. the straw base active carbon electrode material that a kind of signal bronze is coated according to claim 1, is characterized in that, is made up of following concrete step:
(1) stalk is cleaned up post-drying, moisture controls at about 20-25%, isolated air obtains biomass carbon through normal temperature physics charing accumulation in 6-8 hour, again this biomass carbon is ground into particle, be added in fluidized bed furnace, pass into the steam and carbon dioxide gas mixture that are preheated to 300-400 ° of C in advance, under 800-1000 ° of C, carry out oxidation reaction 1-2 hour, be added to after taking-up in the anhydrous potassium hydroxide of melting, obtain active carbon with high specific surface area for subsequent use;
(2) four thio ammonium molybdate, para-aminophenol are added in the aqueous solution of ethanol, the product of step (1) and other residual componentss except signal bronze are added after stirring and dissolving, thermal agitation is added under 80-100 ° of C, pure ammonia is passed into after drying, under 500-600 ° of C, be incubated 50-100 minute, be crushed to 200-400 order powder after being then cooled to rapidly room temperature for subsequent use;
(3) signal bronze is heated to molten condition mix with the product of step (2).
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| CN201510157800.9A CN104867692A (en) | 2015-04-03 | 2015-04-03 | Copper-tin-alloy-coated straw based active carbon electrode material and preparation method thereof |
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| CN201510157800.9A CN104867692A (en) | 2015-04-03 | 2015-04-03 | Copper-tin-alloy-coated straw based active carbon electrode material and preparation method thereof |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001093783A (en) * | 1999-09-22 | 2001-04-06 | Junji Ito | Binder for porous electrode and porous electrode using the same |
| CN1381530A (en) * | 2002-03-25 | 2002-11-27 | 浙江大学 | Polyphenylamine composition with clay ore as carrier and its preparing process |
| CN101037200A (en) * | 2007-03-19 | 2007-09-19 | 合肥工业大学 | Method for preparing active carbon material for organic super capacitor by using straw |
| KR20100035870A (en) * | 2008-09-29 | 2010-04-07 | 엘지이노텍 주식회사 | Gel-type electrolyte composition for electric double layer capacitors, method of preparing the same, and electric double layer capacitors comprising electrolyte layer |
| CN101800131A (en) * | 2010-03-11 | 2010-08-11 | 湘潭大学 | Active carbon-based material and preparation method thereof |
-
2015
- 2015-04-03 CN CN201510157800.9A patent/CN104867692A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001093783A (en) * | 1999-09-22 | 2001-04-06 | Junji Ito | Binder for porous electrode and porous electrode using the same |
| CN1381530A (en) * | 2002-03-25 | 2002-11-27 | 浙江大学 | Polyphenylamine composition with clay ore as carrier and its preparing process |
| CN101037200A (en) * | 2007-03-19 | 2007-09-19 | 合肥工业大学 | Method for preparing active carbon material for organic super capacitor by using straw |
| KR20100035870A (en) * | 2008-09-29 | 2010-04-07 | 엘지이노텍 주식회사 | Gel-type electrolyte composition for electric double layer capacitors, method of preparing the same, and electric double layer capacitors comprising electrolyte layer |
| CN101800131A (en) * | 2010-03-11 | 2010-08-11 | 湘潭大学 | Active carbon-based material and preparation method thereof |
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Application publication date: 20150826 |