CN105977054A - Mixed doping electrode material capable of being applied to supercapacitor and preparation method thereof - Google Patents
Mixed doping electrode material capable of being applied to supercapacitor and preparation method thereof Download PDFInfo
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- CN105977054A CN105977054A CN201610213890.3A CN201610213890A CN105977054A CN 105977054 A CN105977054 A CN 105977054A CN 201610213890 A CN201610213890 A CN 201610213890A CN 105977054 A CN105977054 A CN 105977054A
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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 mixed doping electrode material capable of being applied to a supercapacitor. The mixed doping electrode material is characterized by being prepared from the following raw materials in parts by weight: 60-63 parts of loofah, 37-40 parts of scaphium scaphigerum, an appropriate amount of distilled water, 39.5-40 parts of zinc chloride, 8-8.5 parts of lithium chloride, 5-6 parts of acetylene black, 3-4 parts of nickel cobalt oxide powder, 13-15 parts of sodium hypophosphite, 6-7 parts of polyaniline, 7-9 parts of polyvinyl alcohol, 3-4 parts of urea and 1.5-2 parts of sodium p-toluenesulfonate. According to the invention, the nickel cobalt oxide, the sodium hypophosphite and the polyaniline are mutually doped with a plant-based porous carbon material through a series of processes, and the energy density of the composite material is greatly improved through a synergistic effect and a special stacking mode. A manufactured supercapacitor shows the excellent characteristics of high capacity, high rate, long circulation and the like.
Description
Technical field
The present invention relates to electrode material technical field, particularly relate to a kind of electrode material of mixing and doping that can be used for ultracapacitor and preparation method thereof.
Background technology
The transition of fossil energy is relied on and consumes and causes serious environmental problem and energy crisis by the mankind, and for realizing the development and utilization of the energy of sustainable development, new forms of energy and the research of novel energy device cause extensive concern.Ultracapacitor is class novel energy-storing device between traditional capacitor and battery, and compared with tradition energy storage device, it has higher energy density and power density, longer service life cycle, advantages of environment protection simultaneously.Along with the development of science and technology in recent years, ultracapacitor is gradually increased in the application trend of the aspects such as crane, fork truck, new-energy automobile, common electronic facility and factory's stand-by power supply.But, the electric conductivity of super capacitor material is poor, be related to ultracapacitor key property as the uneven problem common with electrolyte contacts face unstable properties etc. of Topical Dispersion.Electrode is to determine ultracapacitor performance most critical factor, therefore the research of electrode material always this field academia and the focus of industrial quarters.
Summary of the invention
The object of the invention is contemplated to make up the defect of prior art, it is provided that a kind of electrode material of mixing and doping that can be used for ultracapacitor and preparation method thereof.
The present invention is achieved by the following technical solutions:
The electrode material of a kind of mixing and doping that can be used for ultracapacitor, is prepared by the raw materials in: Retinervus Luffae Fructus 60-63, Semen Sterculiae Lychnophorae 37-40, distilled water are appropriate, zinc chloride 39.5-40, lithium chloride 8-8.5, acetylene black 5-6, cobalt acid nickel by powder 3-4, sodium hypophosphite 13-15, polyaniline 6-7, polyvinyl alcohol 7-9, carbamide 3-4, p-methyl benzenesulfonic acid sodium 1.5-2.
The electrode material of a kind of mixing and doping that can be used for ultracapacitor of the present invention, is prepared from by following concrete grammar:
(1) by Retinervus Luffae Fructus under being passed through nitrogen protection, being warming up to 800 DEG C with the heating rate of 5 DEG C/min, insulation carbonization naturally cooled to room temperature after 1 hour, pulverized, and crossed 200 mesh sieves stand-by；Remove shell after Semen Sterculiae Lychnophorae is soaked in the distilled water of 5 times amount expansion and obtain Semen Sterculiae Lychnophorae suspension with crust, above-mentioned 200 mesh powder are added thereto, after stirring, add zinc chloride, lithium chloride, be spray-dried after ultrasonic 2 hours, obtain mixed-powder；
(2) mixed-powder is put in horizontal pipe furnace; under the protection being passed through nitrogen; it is incubated 2 hours at a temperature of 1000 DEG C; after being cooled to room temperature, product is put in the distilled water of 2 times amount and filter after ultrasonic 1.5 hours; the filter cake obtained is put in vacuum drying oven and dry, obtain plant base porous carbon material；
(3) by cobalt acid nickel by powder, sodium hypophosphite mixing, it is placed in tube furnace, under nitrogen protection, is warmed up to 400 DEG C of roastings 2 hours; the coldest going mixes with polyaniline afterwards, adds melted carbamide, and mixed grinding, after 90 minutes, adds acetylene black; continue to grind 40 minutes, dry, obtain the material that adulterates；
(4) polyvinyl alcohol will add the distilled water of 10 times amount, stir and add, after being completely dissolved, the plant base porous carbon material that step (2) obtains, doping material that step (3) obtains and remaining residual components, after stirring 1.5 hours with the speed of 1000 revs/min, material is transferred in rubber mill, the slurry obtaining 400 mesh is ground with the speed of 200 revs/min, then slurry is coated with on a current collector uniformly, it is vacuum dried 6 hours under conditions of temperature 110-120 DEG C, on desktop electric tablet machine, under the pressure of 10MPa, tabletting is carried out after taking-up, dry to constant weight at a temperature of 80 DEG C and get final product in being placed again into vacuum drying oven after cutting.
The invention have the advantage that the present invention uses the plant component such as Retinervus Luffae Fructus, Semen Sterculiae Lychnophorae as carbon source, resource natural reproducible, reduce the dependence to fossil energy, and utilize zinc chloride and lithium chloride salt-mixture as activator, not only solve and utilize the shortcoming of perishable reaction vessel in activation of potassium hydroxide technique, and the plant base porous carbon material prepared has the distribution of optimized pore structure and hole dimension, has good chemical property, technique is simple simultaneously, and feasibility is high.
Cobalt acid nickel, sodium hypophosphite are also mutually adulterated with plant base porous carbon material by a series of technique by the present invention with polyaniline, synergism and special accumulation mode, drastically increasing the energy density of composite, the ultracapacitor made shows the good characteristics such as high power capacity, big multiplying power, long circulating.
Detailed description of the invention
The electrode material of a kind of mixing and doping that can be used for ultracapacitor, is made up of the raw material of following weight portion (kilogram): Retinervus Luffae Fructus 60, Semen Sterculiae Lychnophorae 37, distilled water are appropriate, zinc chloride 39.5, lithium chloride 8, acetylene black 5, cobalt acid nickel by powder 3, sodium hypophosphite 13, polyaniline 6, polyvinyl alcohol 7, carbamide 3, p-methyl benzenesulfonic acid sodium 1.5.
The electrode material of a kind of mixing and doping that can be used for ultracapacitor of the present invention, is prepared from by following concrete grammar:
(1) by Retinervus Luffae Fructus under being passed through nitrogen protection, being warming up to 800 DEG C with the heating rate of 5 DEG C/min, insulation carbonization naturally cooled to room temperature after 1 hour, pulverized, and crossed 200 mesh sieves stand-by；Remove shell after Semen Sterculiae Lychnophorae is soaked in the distilled water of 5 times amount expansion and obtain Semen Sterculiae Lychnophorae suspension with crust, above-mentioned 200 mesh powder are added thereto, after stirring, add zinc chloride, lithium chloride, be spray-dried after ultrasonic 2 hours, obtain mixed-powder；
(2) mixed-powder is put in horizontal pipe furnace; under the protection being passed through nitrogen; it is incubated 2 hours at a temperature of 1000 DEG C; after being cooled to room temperature, product is put in the distilled water of 2 times amount and filter after ultrasonic 1.5 hours; the filter cake obtained is put in vacuum drying oven and dry, obtain plant base porous carbon material；
(3) by cobalt acid nickel by powder, sodium hypophosphite mixing, it is placed in tube furnace, under nitrogen protection, is warmed up to 400 DEG C of roastings 2 hours; the coldest going mixes with polyaniline afterwards, adds melted carbamide, and mixed grinding, after 90 minutes, adds acetylene black; continue to grind 40 minutes, dry, obtain the material that adulterates；
(4) polyvinyl alcohol will add the distilled water of 10 times amount, stir and add, after being completely dissolved, the plant base porous carbon material that step (2) obtains, doping material that step (3) obtains and remaining residual components, after stirring 1.5 hours with the speed of 1000 revs/min, material is transferred in rubber mill, the slurry obtaining 400 mesh is ground with the speed of 200 revs/min, then slurry is coated with on a current collector uniformly, it is vacuum dried 6 hours under conditions of temperature 120 DEG C, on desktop electric tablet machine, under the pressure of 10MPa, tabletting is carried out after taking-up, dry to constant weight at a temperature of 80 DEG C and get final product in being placed again into vacuum drying oven after cutting.
In described embodiment, the electrode of preparation is as working electrode, metallic nickel is colelctor electrode, politef is barrier film, with 2mol/L potassium hydroxide as electrolyte, in the range of 1.2-2.5V, under constant current (5mA), it is circulated test, at room temperature determines that its capacity is 1.70F by charging and discharging curve, internal resistance is 1.48m Ω, and circulation volume conservation rate is 97.9%.
Claims (2)
1. the electrode material of the mixing and doping that can be used for ultracapacitor, it is characterized in that, be prepared by the raw materials in: Retinervus Luffae Fructus 60-63, Semen Sterculiae Lychnophorae 37-40, distilled water are appropriate, zinc chloride 39.5-40, lithium chloride 8-8.5, acetylene black 5-6, cobalt acid nickel by powder 3-4, sodium hypophosphite 13-15, polyaniline 6-7, polyvinyl alcohol 7-9, carbamide 3-4, p-methyl benzenesulfonic acid sodium 1.5-2.
2. according to the electrode material of the mixing and doping that can be used for ultracapacitor a kind of described in claims 1, it is characterised in that be prepared from by following concrete grammar:
(1) by Retinervus Luffae Fructus under being passed through nitrogen protection, being warming up to 800 DEG C with the heating rate of 5 DEG C/min, insulation carbonization naturally cooled to room temperature after 1 hour, pulverized, and crossed 200 mesh sieves stand-by；Remove shell after Semen Sterculiae Lychnophorae is soaked in the distilled water of 5 times amount expansion and obtain Semen Sterculiae Lychnophorae suspension with crust, above-mentioned 200 mesh powder are added thereto, after stirring, add zinc chloride, lithium chloride, be spray-dried after ultrasonic 2 hours, obtain mixed-powder；
(2) mixed-powder is put in horizontal pipe furnace; under the protection being passed through nitrogen; it is incubated 2 hours at a temperature of 1000 DEG C; after being cooled to room temperature, product is put in the distilled water of 2 times amount and filter after ultrasonic 1.5 hours; the filter cake obtained is put in vacuum drying oven and dry, obtain plant base porous carbon material；
(3) by cobalt acid nickel by powder, sodium hypophosphite mixing, it is placed in tube furnace, under nitrogen protection, is warmed up to 400 DEG C of roastings 2 hours; the coldest going mixes with polyaniline afterwards, adds melted carbamide, and mixed grinding, after 90 minutes, adds acetylene black; continue to grind 40 minutes, dry, obtain the material that adulterates；
(4) polyvinyl alcohol will add the distilled water of 10 times amount, stir and add, after being completely dissolved, the plant base porous carbon material that step (2) obtains, doping material that step (3) obtains and remaining residual components, after stirring 1.5 hours with the speed of 1000 revs/min, material is transferred in rubber mill, the slurry obtaining 400 mesh is ground with the speed of 200 revs/min, then slurry is coated with on a current collector uniformly, it is vacuum dried 6 hours under conditions of temperature 110-120 DEG C, on desktop electric tablet machine, under the pressure of 10MPa, tabletting is carried out after taking-up, dry to constant weight at a temperature of 80 DEG C and get final product in being placed again into vacuum drying oven after cutting.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108423675A (en) * | 2018-03-02 | 2018-08-21 | 河南工程学院 | The preparation method of high adsorption rate activated carbon |
| CN114843119A (en) * | 2022-04-30 | 2022-08-02 | 上海应用技术大学 | Preparation method of black Ti-P-O nanotube array electrode material for super capacitor |
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| CN108423675A (en) * | 2018-03-02 | 2018-08-21 | 河南工程学院 | The preparation method of high adsorption rate activated carbon |
| CN114843119A (en) * | 2022-04-30 | 2022-08-02 | 上海应用技术大学 | Preparation method of black Ti-P-O nanotube array electrode material for super capacitor |
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