CN104851601A - Terne metal-clad straw-based active carbon composite electrode material and preparation method thereof - Google Patents
Terne metal-clad straw-based active carbon composite electrode material and preparation method thereof Download PDFInfo
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- CN104851601A CN104851601A CN201510157762.7A CN201510157762A CN104851601A CN 104851601 A CN104851601 A CN 104851601A CN 201510157762 A CN201510157762 A CN 201510157762A CN 104851601 A CN104851601 A CN 104851601A
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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
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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
- H01G11/48—Conductive polymers
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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
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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 terne metal-clad straw-based active carbon composite electrode material, and is characterized by being prepared from the following raw materials in parts by weight: 2 to 3 parts of magnesium oxide, 1 part to 2 parts of nickel oxide, 1 part to 2 parts of lithium cobalt fluorophosphates, 1 part to 2 parts of chloroiridic acid, 2 to 4 parts of ammonium tetrathiotungstate, 1 part to 2 parts of sodium polystyrenesulfonate, 2 to 3 parts of starch, 3 to 4 parts of terne metal, 3 to 5 parts of polyaniline composite materials, 1000 to 1200 parts of straws, 3 to 5 parts of anhydrous potassium hydroxide, and 5 to 10 parts of deionized water. The polyaniline composite materials have the advantages of cheap price, high charge density and the like, and when the polyaniline composite materials are added to an electrode material, conductivity and electricity storage performance of the electrode material can be improved; and the added terne metal has good toughness, thermal conductivity and corrosion resistance, and when the terne metal is coated on a surface of the electrode material, the pore diameter of the electrode material is increased, thereby enhancing conductivity, and prolong the service life of the electrode material.
Description
Technical field
The present invention relates to chemical energy source Material Field, particularly coated straw base activated carbon composite electrode material of a kind of terne metal and preparation method thereof.
Background technology
The features such as ultracapacitor is fast with its discharge and recharge, have extended cycle life, invertibity and good stability, illustrate fine application & development prospect in integrated drive generator, the field such as the large pulse power, computer stand-by power supply of repeating forming electric automobile.The material with carbon element of high-specific surface area is the desirable electrode material of ultracapacitor, as active carbon, carbon aerogels, carbon nano-tube and carbon fiber etc.Although material with carbon element ultracapacitor is commercial applications tentatively, because its specific capacity is less, thus level of application is very limited, and needs to find new Large Copacity, reliable and stable electrode material for super capacitor.
Electrically conductive polyaniline has unique Bronsted acid/cation doping mechanism, and conventional cation acid dopant is the acid of various organic proton and inanimate matter acid.Polyaniline conductivity is good, and having the advantage such as monomer low price, high charge density, is one of the most potential kind in conducting polymer composite.In electrode material for super capacitor, introduce the polyaniline active material of N-shaped doping, in capacitor charging/discharging process, zwitterion in electrolyte can be made full use of, improve the accumulate performance of electrode material.Magnesium oxide has thermal stability and chemical stability, the change of non-structure and composition at very high temperatures, together with it being entrained in carbon based material, can improve carbonaceous, also particulate is stoped to be reunited to a certain extent, improve the electric conductivity of electrode material, improve charging capacity, terne metal has good toughness, thermal conductivity and corrosion resistance, it is coated in the surface of electrode material, add electrode material aperture, thus strengthen conductivity, and extend the useful life of electrode material.
Summary of the invention
The object of this invention is to provide coated straw base activated carbon composite electrode material of a kind of terne metal and preparation method thereof.
In order to realize object of the present invention, the present invention is by following scheme implementation:
The coated straw base activated carbon composite electrode material of a kind of terne metal, is made up of the raw material of following weight portion: magnesium oxide 2-3, nickel oxide 1-2, fluorophosphoric acid cobalt lithium 1-2, chloro-iridic acid 1-2, tetrathio ammonium tungstate 2-4, kayexalate 1-2, starch 2-3, terne metal 3-4, 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 coated straw base activated carbon composite electrode material of a kind of terne metal of the present invention, 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) starch, kayexalate are added in the aqueous solution of ethanol, the product of step (1) and other residual componentss except terne metal 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) terne metal 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; The terne metal added has good toughness, thermal conductivity and corrosion resistance, it is coated in the surface of electrode material, adds electrode material aperture, thus strengthens conductivity, and extends the useful life of electrode material.
specific embodiments
Below by instantiation, the present invention is described in detail.
The coated straw base activated carbon composite electrode material of a kind of terne metal, is made up of the raw material of following weight portion (kilogram): magnesium oxide 3, nickel oxide 1, fluorophosphoric acid cobalt lithium 1, chloro-iridic acid 1, tetrathio ammonium tungstate 3, kayexalate 2, starch 2, terne metal 4, polyaniline composite material 5, 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 coated straw base activated carbon composite electrode material of a kind of terne metal of the present invention, 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) starch, kayexalate are added in the aqueous solution of ethanol, the product of step (1) and other residual componentss except terne metal 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) terne metal 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 254F/g, when electric current is 10A/g, ratio capacitance is 186F/g.
Claims (2)
1. the coated straw base activated carbon composite electrode material of terne metal, it is characterized in that, be made up of the raw material of following weight portion: magnesium oxide 2-3, nickel oxide 1-2, fluorophosphoric acid cobalt lithium 1-2, chloro-iridic acid 1-2, tetrathio ammonium tungstate 2-4, kayexalate 1-2, starch 2-3, terne metal 3-4, 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 coated straw base activated carbon composite electrode material of a kind of terne metal according to claim 1, is characterized in that, 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) starch, kayexalate are added in the aqueous solution of ethanol, the product of step (1) and other residual componentss except terne metal 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) terne metal is heated to molten condition mix with the product of step (2).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510157762.7A CN104851601A (en) | 2015-04-03 | 2015-04-03 | Terne metal-clad straw-based active carbon composite electrode material and preparation method thereof |
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| CN201510157762.7A CN104851601A (en) | 2015-04-03 | 2015-04-03 | Terne metal-clad straw-based active carbon composite electrode material and preparation method thereof |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1317841A (en) * | 2001-06-01 | 2001-10-17 | 中国科学院上海冶金研究所 | Composite C-base alloy electrode material for lithium ion battery and its preparing process |
| CN1381530A (en) * | 2002-03-25 | 2002-11-27 | 浙江大学 | Polyphenylamine composition with clay ore as carrier and its preparing process |
| CN1544702A (en) * | 2003-11-21 | 2004-11-10 | ���Ŵ�ѧ | Process for preparing carbon supported polymer surface nano-alloy electrocatalytic electrode |
| CN1613159A (en) * | 2001-09-26 | 2005-05-04 | 埃罗德·杰安杰 | Current collector structure and methods to improve the performance of a lead-acid battery |
| CN101800131A (en) * | 2010-03-11 | 2010-08-11 | 湘潭大学 | Active carbon-based material and preparation method thereof |
| US7910199B1 (en) * | 2007-07-06 | 2011-03-22 | Hrl Laboratories, Llc | Metal filled porous carbon |
-
2015
- 2015-04-03 CN CN201510157762.7A patent/CN104851601A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1317841A (en) * | 2001-06-01 | 2001-10-17 | 中国科学院上海冶金研究所 | Composite C-base alloy electrode material for lithium ion battery and its preparing process |
| CN1613159A (en) * | 2001-09-26 | 2005-05-04 | 埃罗德·杰安杰 | Current collector structure and methods to improve the performance of a lead-acid battery |
| CN1381530A (en) * | 2002-03-25 | 2002-11-27 | 浙江大学 | Polyphenylamine composition with clay ore as carrier and its preparing process |
| CN1544702A (en) * | 2003-11-21 | 2004-11-10 | ���Ŵ�ѧ | Process for preparing carbon supported polymer surface nano-alloy electrocatalytic electrode |
| US7910199B1 (en) * | 2007-07-06 | 2011-03-22 | Hrl Laboratories, Llc | Metal filled porous carbon |
| 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: 20150819 |