CN104821234A - High-aluminum powder/modified straw composite electrode material and preparation method thereof - Google Patents
High-aluminum powder/modified straw composite electrode material and preparation method thereof Download PDFInfo
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- CN104821234A CN104821234A CN201510157828.2A CN201510157828A CN104821234A CN 104821234 A CN104821234 A CN 104821234A CN 201510157828 A CN201510157828 A CN 201510157828A CN 104821234 A CN104821234 A CN 104821234A
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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
- H01G11/84—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 high-aluminum powder/modified straw composite electrode material and a preparation method thereof. The high-aluminum powder/modified straw composite electrode material is prepared by the following raw materials in parts by weight: 130 to 140 parts of a modified straw composite material, 1 to 2 parts of polyvinylpyrrolidone, 2 to 4 parts of polyacetylene, 1 to 2 parts of carboxymethyl cellulose, 1 to 2 parts of zinc gluconate, 2 to 4 parts of high-aluminum powder, 1 to 2 parts of teflon, 2 to 3 parts of lead dioxide, 3 to 4 parts of tungsten oxide and a proper amount of deionized water. The preparation method of a supercapacotor electrode is simple, the operation is convenient, the cost is low, and the application prospect is quite good.
Description
Technical field
The present invention relates to chemical energy source Material Field, particularly a kind of high-alumina fly/modified straw combination electrode material and preparation method thereof.
Background technology
Along with socioeconomic development, people more and more pay close attention to green energy resource and biological environment.Ultracapacitor, also known as electrochemical capacitor, is a kind of novel energy-storing device between traditional capacitor and battery.Compared with traditional storage battery, ultracapacitor has higher energy density, power density and long circulation life etc., clean as one, efficient novel energy-storing device, receive the concern of more and more researcher, the development core of supercapacitor technologies is electrode material.According to internal authority professor B.E.Conway of ultracapacitor research field to the definition of ultracapacitor, can be divided into two classes: a class is double electric layer capacitor, representing material is porous carbon material (active carbon, Carbon fibe, carbon nanotube etc.); Another kind of is pseudocapacitors, and representing material is metal oxide (RuO
2, IrO
2deng) and conducting polymer (polyaniline, polypyrrole, polythiophene and derivative thereof).
China is large agricultural country, more than 700,000,000 ton is reached especially along with stalk output after various crop maturity, remove used as outside fuel, construction material, feed and fertilizer and generating, still have 60% effectively cannot utilize and meet with discarded, not only cause a large amount of biomass energy wastes, also environment is exerted a certain influence.So the steps such as the present invention utilizes agricultural crop straw to carry out carbonizing, activation make active carbon, as the material of electrode, and with the addition of high-alumina fly and solve battery charging slowly, can not heavy-current discharge and the low problem of specific capacity.
Summary of the invention
The object of this invention is to provide a kind of high-alumina fly/modified straw combination electrode material and preparation method thereof.
In order to realize object of the present invention, the present invention is by following scheme implementation:
A kind of high-alumina fly/modified straw combination electrode material, is made up of the raw material of following weight portion: modified straw composite material 130-140, polyvinylpyrrolidone 1-2, polyacetylene 2-4, carboxymethyl cellulose 1-2, zinc gluconate 1-2, high-alumina fly 2-4, polytetrafluoroethylene 1-2, brown lead oxide 2-3, tungsten oxide 3-4, deionized water are appropriate;
Described modified straw composite material is made up of the raw material of following weight portion: stalk 100-120, dilute hydrochloric acid solution 30-50, zinc chloride 30-50, methyl triethoxysilane 1-2, manganese titanate 1-2, conductive black 2-4, Graphene 2-4, calcined kaolin 15-25, potassium peroxydisulfate 0.5-0.8, ultra-fine fibre glass 0.5-1; Preparation method is that powder of straw is broken into 8-20 order by (1), under 100-120 ° C is dried to constant weight after cleaning up with water; (2) by stalk with 60% zinc chloride mix according to the proportioning of 1:2-3, stir, flood and put into Muffle furnace after 24 hours, at 600-700 ° of C temperature, activate 1 hour, then through washing, filter, that drying obtains active carbon is for subsequent use; (3) be added in dilute hydrochloric acid solution by calcined kaolin and active carbon, under room temperature, soak 8-12 hour, filter, solid is washed with distilled water to neutrality, and filtrate detects without chloride ion, grinds 200-300 mesh sieve after vacuumize; (4) product of step (3) and distilled water are mixed according to the ratio of powder weight: 0.1:30-50, be heated to 40-50 ° of C, add potassium peroxydisulfate, methyl triethoxysilane, stir, add all the other surplus materials again and stir 3-5 hour, through suction filtration, dry obtained modified straw composite material after reaction terminates.
A kind of high-alumina fly/modified straw combination electrode material of the present invention, be made up of following concrete step: by polyvinylpyrrolidone, carboxymethyl cellulose is added in deionized water, high-speed stirred forms the liquid of thickness, add load weighted polyacetylene again, tungsten oxide, zinc gluconate, high-alumina fly, polytetrafluoroethylene, brown lead oxide fully stirs 0.5-1 hour, add the first high-speed stirred 1-2 hour of modified straw composite material again, transfer to low speed grinding in rubber mill again and obtain 200-400 object slurry, again slurry is coated with on a current collector uniformly, vacuumize 8-12 hour under temperature 100-110 ° of C, under the pressure of 10MPa, compressing tablet is carried out after taking-up, dry to constant weight under again putting into vacuum drying chamber 90-100 ° of C temperature after cutting.
Advantage of the present invention is: the present invention, by crop material charing, activation and doping vario-property, prepares the charcoal of high activity, high-specific surface area, with the addition of high-alumina fly and solves battery charging slowly, can not heavy-current discharge and the low problem of specific capacity.Electrode of super capacitor preparation method of the present invention is simple, and easy to operate, cost is low, has good application prospect.
specific embodiments
Below by instantiation, the present invention is described in detail.
A kind of high-alumina fly/modified straw combination electrode material, is made up of the raw material of following weight portion (kilogram): modified straw composite material 130, polyvinylpyrrolidone 1, polyacetylene 3, carboxymethyl cellulose 1, zinc gluconate 2, high-alumina fly 3, polytetrafluoroethylene 1, brown lead oxide 3, tungsten oxide 4, deionized water are appropriate;
Described modified straw composite material is made up of the raw material of following weight portion (kilogram): stalk 100, dilute hydrochloric acid solution 39, zinc chloride 35, methyl triethoxysilane 1, manganese titanate 2, conductive black 4, Graphene 3, calcined kaolin 20, potassium peroxydisulfate 0.7, ultra-fine fibre glass 0.8; Preparation method is that powder of straw is broken into 8-20 order by (1), under 100-120 ° C is dried to constant weight after cleaning up with water; (2) by stalk with 60% zinc chloride mix according to the proportioning of 1:2-3, stir, flood and put into Muffle furnace after 24 hours, at 600-700 ° of C temperature, activate 1 hour, then through washing, filter, that drying obtains active carbon is for subsequent use; (3) be added in dilute hydrochloric acid solution by calcined kaolin and active carbon, under room temperature, soak 8-12 hour, filter, solid is washed with distilled water to neutrality, and filtrate detects without chloride ion, grinds 200-300 mesh sieve after vacuumize; (4) product of step (3) and distilled water are mixed according to the ratio of powder weight: 0.1:30-50, be heated to 40-50 ° of C, add potassium peroxydisulfate, methyl triethoxysilane, stir, add all the other surplus materials again and stir 3-5 hour, through suction filtration, dry obtained modified straw composite material after reaction terminates.
A kind of high-alumina fly/modified straw combination electrode material of the present invention, be made up of following concrete step: by polyvinylpyrrolidone, carboxymethyl cellulose is added in deionized water, high-speed stirred forms the liquid of thickness, add load weighted polyacetylene again, tungsten oxide, zinc gluconate, high-alumina fly, polytetrafluoroethylene, brown lead oxide fully stirs 0.5-1 hour, add the first high-speed stirred 1-2 hour of modified straw composite material again, transfer to low speed grinding in rubber mill again and obtain 200-400 object slurry, again slurry is coated with on a current collector uniformly, vacuumize 8-12 hour under temperature 100-110 ° of C, under the pressure of 10MPa, compressing tablet is carried out after taking-up, dry to constant weight under again putting into vacuum drying chamber 90-100 ° of C temperature after cutting.
With the electrode prepared in described embodiment for work electrode, aluminium foil is collector electrode, polytetrafluoroethylene is barrier film, the acetonitrile solution of 1.0M triethyl methyl ammonium tetrafluoroborate is electrolyte, in the scope of 1.2-2.5V, under constant current (5mA), carry out loop test, capacity: 1.60F, internal resistance: 1.4 Ω m, circulation volume conservation rate (%): 97.9.
Claims (2)
1. high-alumina fly/modified straw combination electrode material, it is characterized in that, be made up of the raw material of following weight portion: modified straw composite material 130-140, polyvinylpyrrolidone 1-2, polyacetylene 2-4, carboxymethyl cellulose 1-2, zinc gluconate 1-2, high-alumina fly 2-4, polytetrafluoroethylene 1-2, brown lead oxide 2-3, tungsten oxide 3-4, deionized water are appropriate;
Described modified straw composite material is made up of the raw material of following weight portion: stalk 100-120, dilute hydrochloric acid solution 30-50, zinc chloride 30-50, methyl triethoxysilane 1-2, manganese titanate 1-2, conductive black 2-4, Graphene 2-4, calcined kaolin 15-25, potassium peroxydisulfate 0.5-0.8, ultra-fine fibre glass 0.5-1; Preparation method is that powder of straw is broken into 8-20 order by (1), under 100-120 ° C is dried to constant weight after cleaning up with water; (2) by stalk with 60% zinc chloride mix according to the proportioning of 1:2-3, stir, flood and put into Muffle furnace after 24 hours, at 600-700 ° of C temperature, activate 1 hour, then through washing, filter, that drying obtains active carbon is for subsequent use; (3) be added in dilute hydrochloric acid solution by calcined kaolin and active carbon, under room temperature, soak 8-12 hour, filter, solid is washed with distilled water to neutrality, and filtrate detects without chloride ion, grinds 200-300 mesh sieve after vacuumize; (4) product of step (3) and distilled water are mixed according to the ratio of powder weight: 0.1:30-50, be heated to 40-50 ° of C, add potassium peroxydisulfate, methyl triethoxysilane, stir, add all the other surplus materials again and stir 3-5 hour, through suction filtration, dry obtained modified straw composite material after reaction terminates.
2. a kind of high-alumina fly/modified straw combination electrode material according to claim 1, it is characterized in that, be made up of following concrete step: by polyvinylpyrrolidone, carboxymethyl cellulose is added in deionized water, high-speed stirred forms the liquid of thickness, add load weighted polyacetylene again, tungsten oxide, zinc gluconate, high-alumina fly, polytetrafluoroethylene, brown lead oxide fully stirs 0.5-1 hour, add the first high-speed stirred 1-2 hour of modified straw composite material again, transfer to low speed grinding in rubber mill again and obtain 200-400 object slurry, again slurry is coated with on a current collector uniformly, vacuumize 8-12 hour under temperature 100-110 ° of C, under the pressure of 10MPa, compressing tablet is carried out after taking-up, dry to constant weight under again putting into vacuum drying chamber 90-100 ° of C temperature after cutting.
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105977044A (en) * | 2016-04-07 | 2016-09-28 | 铜陵泰力电子有限公司 | Polyacrylonitrile enhanced composite electrode material with small self-discharge voltage attenuation and preparation method thereof |
| CN105977041A (en) * | 2016-04-07 | 2016-09-28 | 铜陵泰力电子有限公司 | Cerium-manganese doping supercapacitor electrode material capable of prolonging cycle life and preparation method thereof |
| CN105977043A (en) * | 2016-04-07 | 2016-09-28 | 铜陵泰力电子有限公司 | Supercapacitor electrode material added with modified lignite and preparation method thereof |
| CN105977037A (en) * | 2016-04-07 | 2016-09-28 | 铜陵泰力电子有限公司 | Green and environmental protection low-resistance plant-based porous carbon electrode material and preparation method thereof |
| CN115624955A (en) * | 2022-10-25 | 2023-01-20 | 广州怀特远科技有限公司 | Biochar soil heavy metal restoration agent and preparation method thereof |
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| CN102786052A (en) * | 2012-07-16 | 2012-11-21 | 太仓市联林活性炭厂 | Method for preparation of activated carbon through rice hull desilication |
| CN103117175A (en) * | 2013-02-25 | 2013-05-22 | 中国科学院过程工程研究所 | Multi-element composite nano-material, preparation method thereof and application thereof |
| US20140301020A1 (en) * | 2009-01-09 | 2014-10-09 | The Regents Of The University Of California | Mesoporous nanocrystalline film architecture for capacitive storage devices |
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| US20140301020A1 (en) * | 2009-01-09 | 2014-10-09 | The Regents Of The University Of California | Mesoporous nanocrystalline film architecture for capacitive storage devices |
| CN102651484A (en) * | 2012-05-10 | 2012-08-29 | 中国第一汽车股份有限公司 | Energy storage device combining with characteristics of lithium ion battery and super-capacitor |
| CN102786052A (en) * | 2012-07-16 | 2012-11-21 | 太仓市联林活性炭厂 | Method for preparation of activated carbon through rice hull desilication |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105977044A (en) * | 2016-04-07 | 2016-09-28 | 铜陵泰力电子有限公司 | Polyacrylonitrile enhanced composite electrode material with small self-discharge voltage attenuation and preparation method thereof |
| CN105977041A (en) * | 2016-04-07 | 2016-09-28 | 铜陵泰力电子有限公司 | Cerium-manganese doping supercapacitor electrode material capable of prolonging cycle life and preparation method thereof |
| CN105977043A (en) * | 2016-04-07 | 2016-09-28 | 铜陵泰力电子有限公司 | Supercapacitor electrode material added with modified lignite and preparation method thereof |
| CN105977037A (en) * | 2016-04-07 | 2016-09-28 | 铜陵泰力电子有限公司 | Green and environmental protection low-resistance plant-based porous carbon electrode material and preparation method thereof |
| CN115624955A (en) * | 2022-10-25 | 2023-01-20 | 广州怀特远科技有限公司 | Biochar soil heavy metal restoration agent and preparation method thereof |
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Application publication date: 20150805 |