CN203746670U - Graphite alkene film based super capacitor with carbon nano-tube array combined electrode - Google Patents
Graphite alkene film based super capacitor with carbon nano-tube array combined electrode Download PDFInfo
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- CN203746670U CN203746670U CN201420172222.7U CN201420172222U CN203746670U CN 203746670 U CN203746670 U CN 203746670U CN 201420172222 U CN201420172222 U CN 201420172222U CN 203746670 U CN203746670 U CN 203746670U
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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
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Abstract
The utility model discloses a graphite alkene film based super capacitor with carbon nano-tube array combined electrode, which relates to a super capacitor. The utility model is designed with the object of solving the problems seen in current super capacitors that when carbon nano-tubes grow, they do so in a poor direction and array, thus making the storage capacity of the super capacitors low. The super capacitor of the utility model comprises a first electrode guiding wire, a second electrode guiding wire, a first collector electrode, a second collector electrode, a graphite alkene film, a carbon nano-tube array, a separating film and an outer housing of the capacitor. The super capacitor effectively increases the specific surface area between the combined electrode and the electrolyte, so does its adsorption capability for charges from the combined electrode; at the same time, the ohmic exposure of nano-tubes to the collector electrode is reduced. The capacitor finds applications in the field of capacitors.
Description
Technical field
The utility model relates to a kind of ultracapacitor.
Background technology
Along with the propelling of China 12 strategic new industry innovation and development engineering, the design of ultracapacitor and research and development become one of focus of New Energy Industry concern.Because ultracapacitor performance is between traditional capacitor and battery, compare at instantaneous large-current with traditional capacitor discharge and recharge, operating temperature range is wide and the aspect such as pollution-free is with the obvious advantage, therefore, be widely used in the various fields such as Aero-Space, new-energy automobile and biosensor technique.
In ultracapacitor, electrode material is crucial.Research shows, when electrode material has higher specific area, can obviously improve ultracapacitor stored charge ability, and can reduce the charging interval of ultracapacitor.Carbon nano-tube is the body of seamless, the hollow that is rolled into of the graphene sheet layer that formed by carbon atom, has that specific area is large, mechanism stable, quality is light and the feature such as good conductivity, can be used as the electrode of ultracapacitor.
In existing ultracapacitor during carbon nano tube growth directivity and arrangement property poor, make the mobility of electrolyte poor, can reduce ultracapacitor storage capacity.
Utility model content
The utility model be in the time of will solving in existing ultracapacitor carbon nano tube growth directivity and arrangement property poor, cause the problem that ultracapacitor storage capacity is low, a kind of ultracapacitor based on graphene film-carbon nano pipe array combination electrode is provided.
The ultracapacitor of the utility model based on graphene film-carbon nano pipe array combination electrode comprises the first contact conductor, the second contact conductor, the first collector electrode, the second collector electrode, graphene film, carbon nano pipe array, barrier film and capacitor case, the first collector electrode and the second collector electrode are symmetricly set in two ends inside capacitor case, between the first collector electrode and the second collector electrode, be provided with barrier film, barrier film is separated into two chambers by capacitor, in each chamber, electrolyte is housed, the first collector electrode and the second collector electrode surface coverage graphene film, graphene film surface vertical-growth has carbon nano pipe array, the first contact conductor is connected with the first collector electrode, the second contact conductor is connected with the second collector electrode.
The thickness of described the first collector electrode and the second collector electrode is equal 4～5mm.
The height of described carbon nano pipe array is 200～600 μ m.
Basic principle of the present utility model: theoretical based on ultracapacitor electric double layer, utilize the separation of charge on graphene film-carbon nano pipe array combination electrode and electrolyte interface.During charging, additional power source is accessed to wire, electrolyte provides electric charge, electronics passes to negative pole by external power from positive pole, because the negative ions in electrostatic interaction electrolyte also aligns formation electric double layer thereon to negative, positive electrode migration respectively, the energy storage of capacitor is at electrode and electrolyte interface stored charge; During electric discharge, electronics moves to positive pole by load from negative pole, and negative ions discharges and returns to electrolyte body from electrode surface, returns to original disordered state.
The beneficial effects of the utility model:
The utility model first at collector electrode superficial growth one deck graphene film as electrode substrate, and perpendicular to graphene film surface direction, mode by tight growth obtains directivity and the good carbon nano pipe array of arrangement property, combination electrode and electrolyte specific area can have effectively been improved, improve the electric charge adsorption capacity of combination electrode, reduced the ohmic contact of carbon nano-tube and inter-collector simultaneously.Because carbon nano pipe array of the present utility model is more regular, therefore can increase the mobility of electrolyte, further increase the probability that between electrode and electrolyte, electric charge contacts, can improve the storage capacity of electric charge.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model ultracapacitor.
Embodiment
Technical solutions of the utility model are not limited to following cited embodiment, also comprise the combination in any between each embodiment.
Embodiment one: present embodiment is described in conjunction with Fig. 1, the ultracapacitor of present embodiment based on graphene film-carbon nano pipe array combination electrode comprises the first contact conductor 1, the second contact conductor 2, the first collector electrode 3, the second collector electrode 4, graphene film 5, carbon nano pipe array 6, barrier film 7 and capacitor case 8, the first collector electrode 3 and the second collector electrode 4 are symmetricly set in capacitor case 8 two ends, inner side, between the first collector electrode 3 and the second collector electrode 4, be provided with barrier film 7, barrier film 7 is separated into two chambers by capacitor, in each chamber, electrolyte is housed, the first collector electrode 3 and the second collector electrode 4 surface coverage graphene films 5, the surperficial vertical-growth of graphene film 5 has carbon nano pipe array 6, the first contact conductor 1 is connected with the first collector electrode 3, the second contact conductor 2 is connected with the second collector electrode 4.
The preparation method of present embodiment ultracapacitor is as follows:
One,, by after the first collector electrode 3 and the second collector electrode 4 cleaning, dryings, in the superficial growth of the first collector electrode 3 and the second collector electrode 4, go out graphene film 5, and at the surperficial vertical-growth carbon nano pipe array 6 of graphene film 5, obtain combination electrode;
Two, combination electrode is put into electrolyte (Na
2sO
4solution) in, soak 24 hours;
Three, then combination electrode is put into capacitor case 8, and put into barrier film 7; Described barrier film 7 is polypropylene film;
Four, utilize tablet press machine encapsulation ultracapacitor.
Described in step 1, at collector electrode superficial growth graphene film and in the method for graphene film surface vertical-growth carbon nano pipe array, be existing conventional method.
Embodiment two: present embodiment is different from embodiment one: the thickness of described the first collector electrode 3 and the second collector electrode 4 is equal 4～5mm.Other is identical with embodiment one.
Embodiment three: present embodiment is different from embodiment one or two: the height of described carbon nano pipe array 6 is 200～600 μ m.Other is identical with embodiment one or two.
Claims (3)
1. the ultracapacitor based on graphene film-carbon nano pipe array combination electrode, it is characterized in that this ultracapacitor comprises the first contact conductor (1), the second contact conductor (2), the first collector electrode (3), the second collector electrode (4), graphene film (5), carbon nano pipe array (6), barrier film (7) and capacitor case (8), the first collector electrode (3) is symmetricly set in two ends, capacitor case (8) inner side with the second collector electrode (4), between the first collector electrode (3) and the second collector electrode (4), be provided with barrier film (7), barrier film (7) is separated into two chambers by capacitor, in each chamber, electrolyte is housed, the first collector electrode (3) and the second collector electrode (4) surface coverage graphene film (5), the surperficial vertical-growth of graphene film (5) has carbon nano pipe array (6), the first contact conductor (1) is connected with the first collector electrode (3), the second contact conductor (2) is connected with the second collector electrode (4).
2. the ultracapacitor based on graphene film-carbon nano pipe array combination electrode according to claim 1, is characterized in that the thickness of described the first collector electrode (3) and the second collector electrode (4) is equal 4～5mm.
3. the ultracapacitor based on graphene film-carbon nano pipe array combination electrode according to claim 1, the height that it is characterized in that described carbon nano pipe array (6) is 200～600 μ m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420172222.7U CN203746670U (en) | 2014-04-08 | 2014-04-08 | Graphite alkene film based super capacitor with carbon nano-tube array combined electrode |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201420172222.7U CN203746670U (en) | 2014-04-08 | 2014-04-08 | Graphite alkene film based super capacitor with carbon nano-tube array combined electrode |
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| CN203746670U true CN203746670U (en) | 2014-07-30 |
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| CN201420172222.7U Expired - Fee Related CN203746670U (en) | 2014-04-08 | 2014-04-08 | Graphite alkene film based super capacitor with carbon nano-tube array combined electrode |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106548876A (en) * | 2015-09-22 | 2017-03-29 | 南京绿索电子科技有限公司 | The carbon nano pipe array of superficial oxidation/graphene/manganese dioxide composite material electrode and its preparation method and application |
| WO2018133429A1 (en) * | 2017-01-23 | 2018-07-26 | 华为技术有限公司 | Method for modifying current collector, current collector, and energy storage device |
| CN112117462A (en) * | 2015-04-23 | 2020-12-22 | 威廉马歇莱思大学 | Vertically aligned carbon nanotube arrays as electrodes |
-
2014
- 2014-04-08 CN CN201420172222.7U patent/CN203746670U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112117462A (en) * | 2015-04-23 | 2020-12-22 | 威廉马歇莱思大学 | Vertically aligned carbon nanotube arrays as electrodes |
| CN106548876A (en) * | 2015-09-22 | 2017-03-29 | 南京绿索电子科技有限公司 | The carbon nano pipe array of superficial oxidation/graphene/manganese dioxide composite material electrode and its preparation method and application |
| CN106548876B (en) * | 2015-09-22 | 2018-07-17 | 南京绿索电子科技有限公司 | Carbon nano pipe array/graphene/manganese dioxide composite electrode of superficial oxidation |
| WO2018133429A1 (en) * | 2017-01-23 | 2018-07-26 | 华为技术有限公司 | Method for modifying current collector, current collector, and energy storage device |
| CN108346802A (en) * | 2017-01-23 | 2018-07-31 | 华为技术有限公司 | A kind of method that collector is modified, collector and energy storage device |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140730 Termination date: 20150408 |
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| EXPY | Termination of patent right or utility model |