CN1308348A - Carbon-doped nanometer tube capacity with very high capacitance - Google Patents
Carbon-doped nanometer tube capacity with very high capacitance Download PDFInfo
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- CN1308348A CN1308348A CN00136008A CN00136008A CN1308348A CN 1308348 A CN1308348 A CN 1308348A CN 00136008 A CN00136008 A CN 00136008A CN 00136008 A CN00136008 A CN 00136008A CN 1308348 A CN1308348 A CN 1308348A
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- carbon
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- polarizing electrode
- nanometer tube
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Abstract
A supper electrical capacity condenser with carbon-doping nanometer tube includes the collector, the polarized electrode and the diaphragm and the polarized electrode consists of activated charcol or activated charcol fibre, carbon nanometer tube and adhesive in certain ratio. Since the effective contact area of the polariized electrode is enlarged, the utilization coefficient is increased greatly, the electrical capacity of double electric charge layer condenser is greatly increased to several hundred or even to a thousand farads.
Description
The invention belongs to a kind of carbon-doped nanometer tube capacity with very high capacitance.
At present, polarizing electrode adopts active carbon or activated carbon fiber to make mostly in the double charge layer capacitor, because of its specific area limited, make capacitance less, capacity is unstable again, and conductivity is relatively poor, leakage phenomenon is more serious, and it is big to make capacity, the capacitor that volume is little.
The objective of the invention is for addressing the above problem, a kind of doped carbon nanometer pipe capacitor with super capacity is provided.
The present invention be achieved in that comprise collector electrode, polarizing electrode, every utmost point film, it is characterized in that polarizing electrode comprises polarizing electrode one and polarizing electrode two, polarizing electrode adopts doping techniques, polarizing electrode percentage composition is by weight prepared with following ratio:
Active carbon or activated carbon fiber 0～99.8%;
Carbon nano-tube 99.5～0.1%;
Binding agent 0.1～0.5%.
The manufacture process of polarizing electrode is: at first active carbon (Powdered or graininess) or activated carbon fiber and carbon nano-tube are fully dried; Secondly, with active carbon or activated carbon fiber and carbon nano-tube and binding agent, put into mixer according to a certain percentage, along clockwise or counterclockwise, all the time along same direction, after fully stirring, present gelatinous bead until mixture, and can be combined in one, form an organic whole; At last, place it under the press and be pressed into sheet, promptly can be made into polarizing electrode.
Advantage of the present invention is that carbon nano-tube fully is diffused in the space of carbon atom add carbon nano-tube in polarizing electrode after.On the one hand,, enlarged the effective contact area with electrolyte, promptly increased the capacitance of double charge layer capacitor, its capacity is more tended towards stability attached to the surface of carbon atom; On the other hand, and the slit, inside between carbon atom forms conducting bridge, increased the conductivity of polarizing electrode, further reduced leakage current and equivalent series resistance, makes its charge-discharge characteristic better.And carbon nano-tube is a kind of anticorrosive, can improve the good electronic material of electrical property, if make the double charge layer capacitor of same capability, the polarizing electrode of carbon-doped nanometer tube is compared with active carbon or activated carbon fiber polarizing electrode, and specific characteristic is better, and volume further dwindles.
The drawing explanation:
Fig. 1 is the basic block diagram of capacitor; Wherein, 1, collector electrode, 2, polarizing electrode one, 3, every utmost point film, 4, polarizing electrode two, 5, collector electrode, 6, electrolyte;
The partial enlarged drawing that figure two mixes for polarizing electrode; Wherein, 2.1, active carbon, 2.2, carbon nano-tube;
The weight percentage of table one, each component of polarizing electrode embodiment and every performance index of made capacitor
| Polarizing electrode kind and performance index | Embodiment 1 (%) | Embodiment 2 (%) | Embodiment 3 (%) | Embodiment 4 (%) | Embodiment 5 (%) | |
| Polarizing electrode | Active carbon or activated carbon fiber | 99.8 | ??80 | ????60 | ????0 | ????80 |
| Carbon nano-tube | 0.1 | ??19.9 | ????39.85 | ????99.5 | ????19.9 | |
| Ptfe emulsion | 0.1 | ??0.1 | ????0.15 | ????0.5 | ????0.1 | |
| Polarizing electrode two | Active carbon or activated carbon fiber | 99.8 | ??80 | ????60 | ????80 | ????0 |
| Carbon nano-tube | 0.1 | ??19.9 | ????39.85 | ????19.9 | ????99.5 | |
| Ptfe emulsion | 0.1 | ??0.1 | ????0.15 | ????0.1 | ????0.5 | |
| Rated operational voltage (V) | 1.8 | ??1.8 | ????1.8 | ????1.8 | ????1.8 | |
| Capacity (F) | 4.7 | ??30 | ????60 | ????100 | ????100 | |
| Leakage current (after 1 hour) (μ A) | 150 | ??120 | ????110 | ????100 | ????100 | |
| Equivalent series resistance ESR (Ω) | 1.2 | ??0.7 | ????0.5 | ????0.2 | ????0.2 | |
The manufacture process of polarizing electrode is: at first will get material by a kind of proportioning in the foregoing description, with active carbon (Powdered or graininess) or activated carbon fiber and carbon nano-tube 100～120 ℃ of fully oven dry; Secondly, active carbon or activated carbon fiber are put into mixer with carbon nano-tube and binding agent, along clockwise or counterclockwise, all the time along same direction, after fully stirring, present gelatinous bead until mixture, and can be combined in one, form an organic whole; At last, place it under the press and be pressed into sheet, promptly can be made into polarizing electrode.Collector electrode adopts the etched foil of puncher punching, will be by the above-mentioned polarizing electrode of making, with roller press with its roll extrusion on collector electrode, cut into required specification with cutter again.As get polarizing electrode one and be of a size of 94 * 20mm, on the etched foil attached to collector electrode one, the negative electrode etched foil of collector electrode one is thus drawn; Polarizing electrode two is of a size of 106 * 20mm, on the etched foil attached to collector electrode two, anode is drawn by the etched foil of collector electrode two, two electrodes of double charge layer capacitor have so just been made, edge along collector electrode, with blade unnecessary polarizing electrode material is wiped off, the planarization that keeps electrode edge, to prevent two inter-electrode short-circuits, length direction 20mm place at collector electrode is welded in extraction pole on the etched foil with the rivet welding machine, and will wipe off apart from the polarizing electrode material in the 2mm of extraction pole both sides, expose etched foil, in case the electrolyte corroding electrode.At last, will put into baking oven, remove residual moisture by the electrode that this method is made.The electrode of smoking is placed on the mandrel of up-coiler that diameter is 3-5mm, rise by mandrel near up-coiler, reel successively negative electrode, every utmost point film, anode, form the long structure of short, the outer anode of inner cathode, and make every utmost point film than the long circle of anode, itself and shell are insulated fully, after coiling finishes, it is pulled up from mandrel, be wrapped with insulating tape, promptly can be made into fuse, immerse 1 molar LiBF
6Behind-the carbonic allyl ester solution, on extraction pole, overlap upper sealing washer, and seal washer is fully contacted with fuse, in the shell of again it being packed into, seal the filling resin, make convoluted double charge layer capacitor.
In the present embodiment, polarizing electrode both can be that same material is made, and the electrode that promptly polarises all adopts the identical carbon nano-tube of doping content, makes nonpolar double charge layer capacitor; Also can be that different materials is made, be that one of polarizing electrode adopts doped carbon nanotubes, another uses full carbon nano-tube, also can be the carbon nano-tube different with previous doping content, or do not contain the active carbon or the carbon fiber of carbon nano-tube, make the polarity double charge layer capacitor.
By above-mentioned data as seen, double charge layer capacitor for equal volume, behind the doped carbon nanometer pipe, its capacity increases to 100 farads by 4.7 farads, its capacity has improved tens times, if its volume is enlarged, then its capacity can reach hundreds of even thousands of farad, and its capacity is more tended towards stability, and rate of finished products improves, and leakage current reduces to 100 microamperes by 150, equivalent series resistance reduces to 0.2 ohm by 1.2, caloric value significantly reduces, and has improved the power output of double charge layer capacitor effectively, and charge-discharge characteristic is greatly improved.Make its specific characteristic better, volume further dwindles.
Claims (1)
1, a kind of carbon-doped nanometer tube capacity with very high capacitance, comprise collector electrode, polarizing electrode, every utmost point film, it is characterized in that polarizing electrode comprises polarizing electrode one and polarizing electrode two, polarizing electrode adopts doping techniques, and polarizing electrode percentage composition is by weight prepared with following ratio:
Active carbon or activated carbon fiber 0～99.8%;
Carbon nano-tube 99.5～0.1%;
Binding agent 0.1～0.5%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN00136008A CN1308348A (en) | 2000-12-21 | 2000-12-21 | Carbon-doped nanometer tube capacity with very high capacitance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN00136008A CN1308348A (en) | 2000-12-21 | 2000-12-21 | Carbon-doped nanometer tube capacity with very high capacitance |
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| CN1308348A true CN1308348A (en) | 2001-08-15 |
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| CN00136008A Pending CN1308348A (en) | 2000-12-21 | 2000-12-21 | Carbon-doped nanometer tube capacity with very high capacitance |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101159192B (en) * | 2007-10-29 | 2011-07-13 | 上海中上汽车科技有限公司 | Drawer type super capacitor |
| CN101438360B (en) * | 2004-11-24 | 2012-09-26 | 加利福尼亚大学董事会 | High power density supercapacitors with carbon nanotube electrodes |
| CN101425380B (en) * | 2007-11-02 | 2013-04-24 | 清华大学 | Super capacitor and preparing method therefor |
| WO2021194653A1 (en) * | 2020-03-24 | 2021-09-30 | Yazaki Corporation | Supercapacitor cell with high-purity binder-free carbonaceous electrode |
-
2000
- 2000-12-21 CN CN00136008A patent/CN1308348A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101438360B (en) * | 2004-11-24 | 2012-09-26 | 加利福尼亚大学董事会 | High power density supercapacitors with carbon nanotube electrodes |
| CN101159192B (en) * | 2007-10-29 | 2011-07-13 | 上海中上汽车科技有限公司 | Drawer type super capacitor |
| CN101425380B (en) * | 2007-11-02 | 2013-04-24 | 清华大学 | Super capacitor and preparing method therefor |
| WO2021194653A1 (en) * | 2020-03-24 | 2021-09-30 | Yazaki Corporation | Supercapacitor cell with high-purity binder-free carbonaceous electrode |
| CN115335939A (en) * | 2020-03-24 | 2022-11-11 | 矢崎总业株式会社 | Supercapacitor cells with high purity binder-free carbonaceous electrodes |
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Owner name: JINZHOU JIN-RONG SUPERCAPACITOR LIMITED LIABILITY Free format text: FORMER OWNER: JINZHOU POWER CAPACITOR CO., LTD. Effective date: 20030530 |
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Effective date of registration: 20030530 Address after: 121000, 29, Yu Jie street, Taihe District, Liaoning, Jinzhou Applicant after: Jinrong Super Capacitor Co., Ltd., Jinzhou Address before: 121000 Jinzhou City, Liaoning province Guta District Jinhua Street No. 49 Applicant before: Jinzhou Power Capacitor Co., Ltd. |
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