CN104821236A - Electrode material improving battery capacity of supercapacitor and preparation method thereof - Google Patents
Electrode material improving battery capacity of supercapacitor and preparation method thereof Download PDFInfo
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- CN104821236A CN104821236A CN201510157805.1A CN201510157805A CN104821236A CN 104821236 A CN104821236 A CN 104821236A CN 201510157805 A CN201510157805 A CN 201510157805A CN 104821236 A CN104821236 A CN 104821236A
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- acetylene black
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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
- H01G11/44—Raw materials therefor, e.g. resins or coal
-
- 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
-
- 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 an electrode material improving the battery capacity of a supercapacitor. The electrode material is characterized in that the electrode material is prepared by the following raw materials in parts by weight: 2 to 3 parts of ethyl orthosilicate, 0.3 to 0.5 parts of sodium borohydride, 2 to 4 parts of lithium carbonate, 2 to 4 parts of ferric fluoride, 1 to 3 parts of cobaltous fluoride, 1 to 2 parts of a silane coupling agent A-171, 1 to 2 parts of water glass, 1000 to 1200 parts of straw, 8 to 12 parts of zinc chloride, 4 to 7 parts of citric acid, 3 to 5 parts of modified acetylene black and 100 to 150 parts of distilled water. According to the invention, the added modified acetylene black has the advantages of enhancing the conductive performance and improving the high-magnification charge and discharge performance and the like, the added conductive materials as the lithium carbonate and the like can enable the capacitor to maintain quite high energy density, the power density and the battery capacitor are also higher, the manufacture process is simple, and the circulating application effect is good.
Description
Technical field
The present invention relates to chemical energy source Material Field, particularly a kind ofly improve electrode material of ultracapacitor battery capacity and preparation method thereof.
Background technology
Ultracapacitor, also known as electrochemical capacitor, is a kind of novel energy-storing device between traditional physical capacitor and secondary cell.Because ultracapacitor has relative to traditional secondary battery, power density is high, the advantage such as have extended cycle life, and its power supply as electronic equipment and electric automobile is with a wide range of applications.Active carbon because having higher specific surface area and porosity, and has with low cost relative to carbon nano-tube, Graphene etc., can large-scale production advantage and become the first-selected electrode material of ultracapacitor.Because active carbon conductivity is low, mesoporous ratio is low, and the super capacitor high rate performance doing electrode with active carbon is poor.To compare with amorphous active carbon through the active carbon of conductive materials doping and there is much higher conductivity.Do the electrode of ultracapacitor with straw base active carbon, the electric conducting materials such as doping vario-property acetylene black, lithium carbonate, the energy density that capacitor can be made to keep higher, also has higher power density and battery capacity.The electrode material of the straw base charcoal therefore adulterated has excellent performance.
Summary of the invention
The object of this invention is to provide and a kind ofly improve electrode material of ultracapacitor battery capacity and preparation method thereof.
In order to realize object of the present invention, the present invention is by following scheme implementation:
Improve an electrode material for ultracapacitor battery capacity, be made up of the raw material of following weight portion: tetraethoxysilane 2-3, sodium borohydride 0.3-0.5, lithium carbonate 2-4, ferric flouride 2-4, cohalt difluoride 1-3, silane coupling A-1711-2, waterglass 1-2, stalk 1000-1200, zinc chloride 8-12, citric acid 4-7, modification acetylene black 3-5, distilled water 100-150;
Described modification acetylene black is made up of the raw material of following weight portion: barium sulfate 3-5, acetylene black 40-60, lignin 1-2, molybdenum bisuphide 4-5, silicon tetrachloride 5-7, polyvinyl alcohol 2-3, distilled water 10-20; Preparation method is: be added in the solution of silicon tetrachloride by barium sulfate, lignin, molybdenum bisuphide, ultrasonic disperse 1-2 hour, again by the material suction filtration post-drying of gained, be added in the aqueous solution of polyvinyl alcohol and form suspension-turbid liquid, again suspension-turbid liquid is coated in the acetylene black after ozone activation, under the condition of 600-700 ° of C, sinter 3-5 hour, after naturally cooling to room temperature, grind to form 200-400 order powder.
A kind of electrode material improving ultracapacitor battery capacity of the present invention, be made up of following concrete step:
(1) powder of straw is broken into fine particle shape, clean up post-drying, moisture controls at about 20-25%, again zinc chloride and citric acid are added in distilled water, add stalk after stirring and soak 4-8 hour, be added to after drying dewaters in retort, first low-temperature carbonization 1-2 hour under 250-350 ° of C, raised temperature, to 450-550 ° of C, continues charing for subsequent use after 1-2 hour;
(2) tetraethoxysilane, silane coupling A-171 and waterglass are added in distilled water, be heated to 60-70 ° of C stir, add the material of lithium carbonate, ferric flouride, cohalt difluoride, sodium borohydride and step (1) again, stirring reaction 1-2 hour, to be added in microwave dryer dry 3-5 hour under 130-150 ° of C after reaction terminates;
(3) by the product of step (2) and the mixing of modification acetylene black, ball milling 2-3 hour under the atmosphere of nitrogen, then be added in calciner and continue to calcine 3-4 hour in 700-750 ° of C under the protection of nitrogen, cooling, pulverizing can obtain.
Advantage of the present invention is: the modification acetylene black that the present invention adds has and enhances electric conductivity and improve the advantages such as high-rate charge-discharge capability, the electric conducting materials such as the lithium carbonate added, the energy density that capacitor keeps higher can be made, also there is higher power density and battery capacity, manufacture craft is simple, recycles effective.
specific embodiments
Below by instantiation, the present invention is described in detail.
Improve an electrode material for ultracapacitor battery capacity, be made up of the raw material of following weight portion (kilogram): tetraethoxysilane 3, sodium borohydride 0.3, lithium carbonate 3, ferric flouride 2, cohalt difluoride 2, silane coupling A-1711, waterglass 1, stalk 1200, zinc chloride 10, citric acid 6, modification acetylene black 5, distilled water 150;
Described modification acetylene black is made up of the raw material of following weight portion (kilogram): barium sulfate 4, acetylene black 55, lignin 1, molybdenum bisuphide 4, silicon tetrachloride 7, polyvinyl alcohol 2, distilled water 17; Preparation method is: be added in the solution of silicon tetrachloride by barium sulfate, lignin, molybdenum bisuphide, ultrasonic disperse 1-2 hour, again by the material suction filtration post-drying of gained, be added in the aqueous solution of polyvinyl alcohol and form suspension-turbid liquid, again suspension-turbid liquid is coated in the acetylene black after ozone activation, under the condition of 600-700 ° of C, sinter 3-5 hour, after naturally cooling to room temperature, grind to form 200-400 order powder.
A kind of electrode material improving ultracapacitor battery capacity of the present invention, be made up of following concrete step:
(1) powder of straw is broken into fine particle shape, clean up post-drying, moisture controls at about 20-25%, again zinc chloride and citric acid are added in distilled water, add stalk after stirring and soak 4-8 hour, be added to after drying dewaters in retort, first low-temperature carbonization 1-2 hour under 250-350 ° of C, raised temperature, to 450-550 ° of C, continues charing for subsequent use after 1-2 hour;
(2) tetraethoxysilane, silane coupling A-171 and waterglass are added in distilled water, be heated to 60-70 ° of C stir, add the material of lithium carbonate, ferric flouride, cohalt difluoride, sodium borohydride and step (1) again, stirring reaction 1-2 hour, to be added in microwave dryer dry 3-5 hour under 130-150 ° of C after reaction terminates;
(3) by the product of step (2) and the mixing of modification acetylene black, ball milling 2-3 hour under the atmosphere of nitrogen, then be added in calciner and continue to calcine 3-4 hour in 700-750 ° of C under the protection of nitrogen, cooling, pulverizing can obtain.
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 saturated calomel electrode, electrolyte is the sodium hydroxide solution of 9mol/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 264F/g, when electric current is 10A/g, ratio capacitance is 188F/g.
Claims (2)
1. one kind is improved the electrode material of ultracapacitor battery capacity, it is characterized in that, be made up of the raw material of following weight portion: tetraethoxysilane 2-3, sodium borohydride 0.3-0.5, lithium carbonate 2-4, ferric flouride 2-4, cohalt difluoride 1-3, silane coupling A-1711-2, waterglass 1-2, stalk 1000-1200, zinc chloride 8-12, citric acid 4-7, modification acetylene black 3-5, distilled water 100-150;
Described modification acetylene black is made up of the raw material of following weight portion: barium sulfate 3-5, acetylene black 40-60, lignin 1-2, molybdenum bisuphide 4-5, silicon tetrachloride 5-7, polyvinyl alcohol 2-3, distilled water 10-20; Preparation method is: be added in the solution of silicon tetrachloride by barium sulfate, lignin, molybdenum bisuphide, ultrasonic disperse 1-2 hour, again by the material suction filtration post-drying of gained, be added in the aqueous solution of polyvinyl alcohol and form suspension-turbid liquid, again suspension-turbid liquid is coated in the acetylene black after ozone activation, under the condition of 600-700 ° of C, sinter 3-5 hour, after naturally cooling to room temperature, grind to form 200-400 order powder.
2. a kind of electrode material improving ultracapacitor battery capacity according to claim 1, is characterized in that, be made up of following concrete step:
(1) powder of straw is broken into fine particle shape, clean up post-drying, moisture controls at about 20-25%, again zinc chloride and citric acid are added in distilled water, add stalk after stirring and soak 4-8 hour, be added to after drying dewaters in retort, first low-temperature carbonization 1-2 hour under 250-350 ° of C, raised temperature, to 450-550 ° of C, continues charing for subsequent use after 1-2 hour;
(2) tetraethoxysilane, silane coupling A-171 and waterglass are added in distilled water, be heated to 60-70 ° of C stir, add the material of lithium carbonate, ferric flouride, cohalt difluoride, sodium borohydride and step (1) again, stirring reaction 1-2 hour, to be added in microwave dryer dry 3-5 hour under 130-150 ° of C after reaction terminates;
(3) by the product of step (2) and the mixing of modification acetylene black, ball milling 2-3 hour under the atmosphere of nitrogen, then be added in calciner and continue to calcine 3-4 hour in 700-750 ° of C under the protection of nitrogen, cooling, pulverizing can obtain.
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| CN201510157805.1A CN104821236A (en) | 2015-04-03 | 2015-04-03 | Electrode material improving battery capacity of supercapacitor and preparation method thereof |
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| CN201510157805.1A CN104821236A (en) | 2015-04-03 | 2015-04-03 | Electrode material improving battery capacity of supercapacitor and preparation method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109384457A (en) * | 2018-09-30 | 2019-02-26 | 镇江华智睿安物联科技有限公司 | A kind of electrode material and preparation method thereof for mass spectrum ionization source |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1195834A2 (en) * | 2000-10-03 | 2002-04-10 | Central Glass Company, Limited | Electrolyte for electrochemical device |
| 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 |
| CN103904328A (en) * | 2014-04-01 | 2014-07-02 | 华南师范大学 | Preparation method of biomass lamella carbon material and application |
-
2015
- 2015-04-03 CN CN201510157805.1A patent/CN104821236A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1195834A2 (en) * | 2000-10-03 | 2002-04-10 | Central Glass Company, Limited | Electrolyte for electrochemical device |
| 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 |
| CN103904328A (en) * | 2014-04-01 | 2014-07-02 | 华南师范大学 | Preparation method of biomass lamella carbon material and application |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109384457A (en) * | 2018-09-30 | 2019-02-26 | 镇江华智睿安物联科技有限公司 | A kind of electrode material and preparation method thereof for mass spectrum ionization source |
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Application publication date: 20150805 |