CN103021673B - Electrode plate of super-capacitor and method for manufacturing electrode plate - Google Patents
Electrode plate of super-capacitor and method for manufacturing electrode plate Download PDFInfo
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- CN103021673B CN103021673B CN201210584873.2A CN201210584873A CN103021673B CN 103021673 B CN103021673 B CN 103021673B CN 201210584873 A CN201210584873 A CN 201210584873A CN 103021673 B CN103021673 B CN 103021673B
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- tinsel
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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 provides an electrode plate of a super-capacitor and a method for manufacturing the electrode plate. The electrode plate of the super-capacitor comprises a metal foil and carbon electrodes arranged on the front surface and the back surface of the metal foil respectively; guide pins are used as outgoing lines and are fixedly connected to the corresponding surfaces of the metal foil; and carbon material layers are arranged on portions, which are fixedly connected with the corresponding surfaces of the metal foil, of the guide pins. The carbon material layers are arranged on the portions, which are connected with the metal foil, of the guide pins of the electrode plate of the super-capacitor, the defect of cracking of a diaphragm due to electric discharge of the guide pins can be effectively suppressed under actions of the carbon material layers when the super-capacitor works, and the service life of the super-capacitor is prolonged.
Description
Technical field
The present invention relates to a kind of electron stored energy device, especially a kind of super capacitor electrode slice and preparation method thereof.
Background technology
Conventional energy storage device, generally include lithium ion battery, lead-acid battery, Ni-MH battery etc., energy density is high, the multiple advantage such as have extended cycle life because having for these energy storage devices, obtains apply comparatively widely in fields such as mobile phone, notebook computer, digital cameras; But due to these energy storage device self performance, to determine its high rate during charging-discharging, security performance relatively poor, therefore also limit its application in fields such as solar energy, wind energy, power vehicle, electric motor cars
Ultracapacitor is the extraordinary energy-storage travelling wave tube between conventional electrostatic container and electrochemical power source that development in recent years is got up; Because it has the advantage that power density is high, service life cycle is long and charging rate is fast, have broad application prospects at multiple fields such as mobile communication, solar energy and wind power generation, information technology, electric automobiles.
In ultracapacitor, super capacitor electrode slice is important composition parts.Fig. 1 and Fig. 2 illustrates the electrode slice of conventional Super capacitor.As depicted in figs. 1 and 2, super capacitor electrode slice comprises: tinsel 1 '; And carbon electrode 2 ', be arranged on positive and negative two surfaces 11 ' of tinsel 1 '; Wherein, guide pin 3 ' is fixedly connected on the respective surfaces 11 ' of tinsel 1 ' as lead-out wire.In super capacitor electrode slice conventional machining process, normally at positive and negative two surface 11 ' carbon coating slurries of the tinsel 1 ' of super capacitor electrode slice to form carbon electrode 2 ' on two surfaces 11 ' of tinsel 1 ', then on tinsel 1 ', determine the position of the guide pin 3 ' in order to fixing ultracapacitor, and scrape off carbon-coating in described position correspondence, and on the tinsel 1 ' scraping off carbon-coating place fixation guide pin 3 '.The super capacitor electrode slice of this version, the part that its guide pin 3 ' is connected with super capacitor electrode slice is generally exposed.Find in actual application, ultracapacitor is at the barrier film cracky near guide pin place, those skilled in the art think that super capacitor electrode slice locates at guide pin 3 ' excessive causing of discharging, and barrier film is damaged use and the life-span affecting ultracapacitor easily.In order in use prevent the membrane ruptures located near guide pin 3 ', usually locate to paste insulating tape at guide pin 3 ', farthest to suppress ultracapacitor to locate electric discharge at guide pin 3 ', thus protection barrier film.But find in practice, this mode is located to destroy insulating tape thus effectively can not protect barrier film when electric discharge is excessive at guide pin 3 ' because of ultracapacitor, capacity of super capacitor can be made to reduce due to the insulating effect of insulating tape simultaneously.Therefore, how to prevent from use effectively preventing super capacitor electrode slice from locating membrane ruptures at guide pin 3 ' and the capacity of ultracapacitor is guaranteed the difficult problem even improving and become those skilled in the art and face.
Summary of the invention
For Problems existing in background technology; the object of the present invention is to provide a kind of super capacitor electrode slice and preparation method thereof, it is being applied in ultracapacitor the electric current that the part place be connected with super capacitor electrode slice at guide pin can be suppressed to discharge thus is protecting barrier film.
Another object of the present invention is to, provide a kind of super capacitor electrode slice and preparation method thereof, it is being applied in ultracapacitor the capacity that can ensure even to improve ultracapacitor.
To achieve these goals, in a first aspect of the present invention, the invention provides a kind of super capacitor electrode slice, it comprises: tinsel; And carbon electrode, be arranged on positive and negative two surfaces of described tinsel; Wherein, guide pin is fixedly connected on the respective surfaces of described tinsel as lead-out wire; The part be fixedly connected with the described respective surfaces of described tinsel at described guide pin is provided with material with carbon element layer.
To achieve these goals, in a second aspect of the present invention, the invention provides a kind of preparation method of super capacitor electrode slice, comprise step: carbon electrode is set in positive and negative two surface coverage of the tinsel of super capacitor electrode slice; Tinsel is determined the position of the guide pin being fixedly connected with ultracapacitor; The carbon-coating arranging carbon electrode that covers being in described position on described tinsel is removed; At described removal carbon-coating place, described guide pin is fixedly connected on the described respective surfaces of described tinsel; And in the part that described guide pin is fixedly connected with the described respective surfaces of described tinsel, material with carbon element is set, to form material with carbon element layer.Preferably, the preparation method of described super capacitor electrode slice also can comprise step: described tinsel being in covering after the carbon-coating arranging carbon electrode is removed and before at described removal carbon-coating place described guide pin being fixedly connected on the described respective surfaces of described tinsel, carrying out clean to the described removal carbon-coating place of described tinsel of described position.
To achieve these goals, in a third aspect of the present invention, the invention provides a kind of preparation method of super capacitor electrode slice, comprise step: the position determining to be fixedly connected with the guide pin of ultracapacitor on the tinsel of super capacitor electrode slice; Positive and negative two surfaces of tinsel arrange carbon electrode, and wherein the relatively described carbon electrode of the part being in described position of the respective surfaces of tinsel exposes; In described position, guide pin is fixedly connected on the described respective surfaces of described tinsel; The part be fixedly connected with the described respective surfaces of described tinsel at described guide pin arranges material with carbon element, to form material with carbon element layer.
In above-mentioned three of the present invention, preferably, described material with carbon element layer is connected with described carbon electrode; Described material with carbon element layer covers the described part that described guide pin is fixedly connected with the described respective surfaces of described tinsel; The composition of described material with carbon element layer is identical with the composition of described carbon electrode.More preferably, the thickness of material with carbon element layer is equal to or less than the thickness of carbon electrode, and further preferably, the thickness of material with carbon element layer equals the thickness of carbon electrode.
Compared with prior art, beneficial effect of the present invention according under.
(1) because the guide pin of super capacitor electrode slice of the present invention is provided with described material with carbon element layer in the part be connected with tinsel; under the effect of described material with carbon element layer; can when ultracapacitor works; make tinsel evenly electric discharge; effective suppression super capacitor electrode slice is excessive and cause the defect of membrane ruptures in the electric discharge of guide pin place; thus protect barrier film, and then improve use and the life-span of ultracapacitor.
(2) because described guide pin place is provided with described material with carbon element layer, described material with carbon element composition of layer is consistent with the described carbon electrode composition of described super capacitor electrode slice, therefore further increase the surface area of described carbon electrode, and then make the further expanded of the capacity of ultracapacitor.
(3) thickness of material with carbon element layer is equal to or less than the thickness of carbon electrode, thus the increase of material with carbon element layer excessively can not increase the volume of ultracapacitor.The thickness of material with carbon element layer equals the thickness of carbon electrode, thus makes increased material with carbon element layer and carbon electrode consistency in performance, improves the performance of ultracapacitor.
Accompanying drawing explanation
Fig. 1 is the plan structure schematic diagram of conventional Super capacitor electrode slice;
Fig. 2 is the sectional structure schematic diagram of conventional Super capacitor electrode slice;
Fig. 3 is the plan structure schematic diagram according to super capacitor electrode slice of the present invention;
Fig. 4 is the sectional structure schematic diagram according to super capacitor electrode slice of the present invention;
Fig. 5 is the partial enlarged drawing of Fig. 4.
Wherein, description of reference numerals is as follows:
Embodiment
Describe in detail with reference to the accompanying drawings according to super capacitor electrode slice of the present invention and preparation method thereof.
First super capacitor electrode slice is according to a first aspect of the present invention described.
As shown in Fig. 3, Fig. 4, Fig. 5, super capacitor electrode slice according to the present invention comprises: tinsel 1; And carbon electrode 2, be arranged on positive and negative two surfaces 11 of tinsel 1; Wherein, guide pin 3 is as lead-out wire and be fixedly connected on the respective surfaces 11 of tinsel 1, and the part be fixedly connected with the respective surfaces 11 of tinsel 1 at guide pin 3 is provided with material with carbon element layer 4.At guide pin 3, place arranges material with carbon element layer 4, when ultracapacitor works, material with carbon element layer 4 can effectively suppress super capacitor electrode slice excessive in the electric discharge of guide pin 3 place, super capacitor electrode slice is discharged evenly change, and then avoid, because ultracapacitor tinsel 1 is excessive and cause membrane ruptures at guide pin 3 place at guide pin 3 place release current, improve the useful life of ultracapacitor.
In super capacitor electrode slice according to a first aspect of the present invention, preferably, material with carbon element layer 4 is connected with carbon electrode 2; Material with carbon element layer 4 covers the part that guide pin 3 is fixedly connected with the respective surfaces 11 of tinsel 1; The composition of material with carbon element layer 4 is identical with the composition of carbon electrode 2.Thus, can further improve the surface area of carbon electrode 2, and then make the further expanded of the capacity of ultracapacitor.More preferably, the thickness of material with carbon element layer 4 is equal to or less than the thickness of carbon electrode 2 in invention.Thus, no matter ultracapacitor adopts takeup type structure or laminated structure, and this size of material with carbon element layer 4 excessively can not increase the volume of ultracapacitor.Further preferably, the thickness of material with carbon element layer 4 equals the thickness of carbon electrode 2, thus makes increased material with carbon element layer 4 and the consistency of carbon electrode 2 in performance.
In super capacitor electrode slice according to a first aspect of the present invention, the mode that carbon electrode 2 is arranged on positive and negative two surfaces 11 of tinsel 1 can be realized by the mode on positive and negative two surfaces 11 oven dry that carbon pastes are coated in tinsel 1 or be realized by the mode carbon electrode prepared separately 2 being bonded in positive and negative two surfaces 11 on tinsel 1.Similarly, the setting of material with carbon element layer 4 by carbon coating material paste and the mode of drying to realize or by mode bonding for the material with carbon element prepared separately layer 4 is realized.
Secondly the preparation method of super capacitor electrode slice is according to a second aspect of the present invention described.
The preparation method of super capacitor electrode slice according to a second aspect of the present invention comprises step: cover on positive and negative two surfaces 11 of the tinsel 1 of super capacitor electrode slice and arrange carbon electrode 2; Tinsel 1 is determined the position of the guide pin 3 being fixedly connected with ultracapacitor; The carbon-coating arranging carbon electrode 2 that covers being in described position on tinsel 1 is removed; At removal carbon-coating place, guide pin 3 is fixedly connected on the respective surfaces 11 of tinsel 1; And in the part that guide pin 3 is fixedly connected with the respective surfaces 11 of tinsel 1, material with carbon element 4 is set, to form material with carbon element layer 4.The part be fixedly connected with the respective surfaces 11 of tinsel 1 at guide pin 3 arranges material with carbon element layer 4, when ultracapacitor works, material with carbon element layer 4 can effectively suppress super capacitor electrode slice excessive in the electric discharge of guide pin 3 place, super capacitor electrode slice is discharged evenly change, and then avoid, because ultracapacitor tinsel 1 is excessive and cause membrane ruptures at guide pin 3 place at guide pin 3 place release current, improve the useful life of ultracapacitor.
In the preparation method of super capacitor electrode slice according to a second aspect of the present invention, preferably, the preparation method of described super capacitor electrode slice also can comprise step: tinsel 1 being in covering after the carbon-coating arranging carbon electrode 2 is removed and before removing carbon-coating place and guide pin 3 being fixedly connected on the respective surfaces 11 of tinsel 1, carrying out clean to the removal carbon-coating place of tinsel 1 of described position.Thus, can contact better when guide pin 3 is fixedly connected with tinsel 1, make super capacitor electrode slice have lower ESR, thus entirety reduce the internal resistance of ultracapacitor.
In the preparation method of super capacitor electrode slice according to a second aspect of the present invention, preferably, material with carbon element layer 4 is connected with carbon electrode 2; Material with carbon element layer 4 covers the part that guide pin 3 is fixedly connected with the respective surfaces 11 of tinsel 1; The composition of material with carbon element layer 4 is identical with the composition of carbon electrode 2.Thus, can further improve the surface area of carbon electrode 2, and then make the further expanded of the capacity of ultracapacitor.More preferably, the thickness of material with carbon element layer 4 is equal to or less than the thickness of carbon electrode 2 in invention.Thus, no matter ultracapacitor adopts takeup type structure or laminated structure, and this size of material with carbon element layer 4 excessively can not increase the volume of ultracapacitor.Further preferably, the thickness of material with carbon element layer 4 equals the thickness of carbon electrode 2, thus makes increased material with carbon element layer 4 and the consistency of carbon electrode 2 in performance.
In the preparation method of super capacitor electrode slice according to a second aspect of the present invention, carbon electrode 2 is covered the mode being arranged on positive and negative two surfaces 11 of tinsel 1 and can be realized by the mode on positive and negative two surfaces 11 oven dry that carbon pastes are coated in tinsel 1 or be realized by the mode carbon electrode prepared separately 2 being bonded in positive and negative two surfaces 11 on tinsel 1.Similarly, the setting of material with carbon element layer 4 by carbon coating material paste and the mode of drying to realize or by mode bonding for the material with carbon element prepared separately layer 4 is realized.
The preparation method of super capacitor electrode slice according to a third aspect of the present invention is finally described.
The preparation method of super capacitor electrode slice according to a third aspect of the present invention comprises step: the position determining the guide pin 3 being fixedly connected with ultracapacitor on the tinsel 1 of super capacitor electrode slice; Positive and negative two surfaces 11 of tinsel 1 arrange carbon electrode 2, and wherein the relative carbon electrode 2 of the part being in position of the respective surfaces 11 of tinsel 1 exposes; In described position, guide pin 3 is fixedly connected on the respective surfaces 11 of tinsel 1; The part be fixedly connected with the respective surfaces 11 of tinsel 1 at guide pin 3 arranges material with carbon element 4, to form material with carbon element layer 4.The part be fixedly connected with the respective surfaces 11 of tinsel 1 at guide pin 3 arranges material with carbon element layer 4, when ultracapacitor works, material with carbon element layer 4 can effectively suppress super capacitor electrode slice excessive in the electric discharge of guide pin 3 place, super capacitor electrode slice is discharged evenly change, and then avoid, because ultracapacitor tinsel 1 is excessive and cause membrane ruptures at guide pin 3 place at guide pin 3 place release current, improve the useful life of ultracapacitor.
In the preparation method of super capacitor electrode slice according to a third aspect of the present invention, preferably, material with carbon element layer 4 is connected with carbon electrode 2; Material with carbon element layer 4 covers the part that guide pin 3 is fixedly connected with the respective surfaces 11 of tinsel 1; The composition of material with carbon element layer 4 is identical with the composition of carbon electrode 2.Thus, can further improve the surface area of carbon electrode 2, and then make the further expanded of the capacity of ultracapacitor.More preferably, the thickness of material with carbon element layer 4 is equal to or less than the thickness of carbon electrode 2 in invention.Thus, no matter ultracapacitor adopts takeup type structure or laminated structure, and this size of material with carbon element layer 4 excessively can not increase the volume of ultracapacitor.Further preferably, the thickness of material with carbon element layer 4 equals the thickness of carbon electrode 2, thus makes increased material with carbon element layer 4 and the consistency of carbon electrode 2 in performance.
In the preparation method of super capacitor electrode slice according to a third aspect of the present invention, the mode that carbon electrode 2 is arranged on positive and negative two surfaces 11 of tinsel 1 can be realized by the mode on positive and negative two surfaces 11 oven dry that carbon pastes are coated in tinsel 1 or be realized by the mode carbon electrode prepared separately 2 being bonded in positive and negative two surfaces 11 on tinsel 1.Similarly, the setting of material with carbon element layer 4 by carbon coating material paste and the mode of drying to realize or by mode bonding for the material with carbon element prepared separately layer 4 is realized.
Claims (10)
1. a super capacitor electrode slice, comprising:
Tinsel (1); And
Carbon electrode (2), is arranged on positive and negative two surfaces (11) of described tinsel (1);
Wherein, guide pin (3) is fixedly connected on the respective surfaces (11) of described tinsel (1) as ultracapacitor lead-out wire;
It is characterized in that, the surface contrary with the described respective surfaces (11) of described tinsel (1) of described guide pin (3) is provided with material with carbon element layer (4).
2. super capacitor electrode slice according to claim 1, is characterized in that,
Described material with carbon element layer (4) is connected with described carbon electrode (2);
Described material with carbon element layer (4) covers the surface contrary with the described respective surfaces (11) of described tinsel (1) of described guide pin (3);
The composition of described material with carbon element layer (4) is identical with the composition of described carbon electrode (2).
3. super capacitor electrode slice according to claim 2, is characterized in that, the thickness of described material with carbon element layer (4) is equal to or less than the thickness of described carbon electrode (2).
4. a preparation method for super capacitor electrode slice, is characterized in that, comprises step:
Positive and negative two surfaces (11) covering of the tinsel (1) of super capacitor electrode slice, carbon electrode (2) is set;
Tinsel (1) is determined the position of the guide pin (3) being fixedly connected with ultracapacitor;
The carbon-coating that the described covering in order to fixation guide pin position arranges carbon electrode (2) that is on described tinsel (1) is removed;
At described removal carbon-coating place, described guide pin (3) is fixedly connected on the described respective surfaces (11) of described tinsel (1); And
Material with carbon element (4) is set on the surface contrary with the described respective surfaces (11) of described tinsel (1) of described guide pin (3), to form material with carbon element layer (4).
5. the preparation method of super capacitor electrode slice according to claim 4, is characterized in that,
Described material with carbon element layer (4) is connected with described carbon electrode (2);
Described material with carbon element layer (4) covers the surface contrary with the described respective surfaces (11) of described tinsel (1) of described guide pin (3);
The composition of described material with carbon element layer (4) is identical with the composition of described carbon electrode (2).
6. the preparation method of super capacitor electrode slice according to claim 5, is characterized in that, the thickness of described material with carbon element layer (4) is equal to or less than the thickness of described carbon electrode (2).
7. the preparation method of super capacitor electrode slice according to claim 4, is characterized in that, also comprises step:
After the carbon-coating covering being in described position on described tinsel (1) being arranged carbon electrode (2) is removed, before at described removal carbon-coating place described guide pin (3) being fixedly connected on the described respective surfaces (11) of described tinsel (1), clean is carried out to the described removal carbon-coating place of described tinsel (1).
8. a preparation method for super capacitor electrode slice, is characterized in that, comprises step:
The tinsel (1) of super capacitor electrode slice is determined the position of the guide pin (3) being fixedly connected with ultracapacitor;
Positive and negative two surfaces (11) of tinsel (1) arrange carbon electrode (2), and wherein the relatively described carbon electrode (2) of the part being in described position of the respective surfaces (11) of tinsel (1) exposes;
In described position, guide pin (3) is fixedly connected on the described respective surfaces (11) of described tinsel (1);
Material with carbon element (4) is set on the surface contrary with the described respective surfaces (11) of described tinsel (1) of described guide pin (3), to form material with carbon element layer (4).
9. the preparation method of super capacitor electrode slice according to claim 8, is characterized in that,
Described material with carbon element layer (4) is connected with described carbon electrode (2);
Described material with carbon element layer (4) covers described guide pin (3) surface contrary with the described respective surfaces (11) of described tinsel (1);
The composition of described material with carbon element layer (4) is identical with the composition of described carbon electrode (2).
10. the preparation method of super capacitor electrode slice according to claim 9, is characterized in that, the thickness of described material with carbon element layer (4) is equal to or less than the thickness of described carbon electrode (2).
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| CN104167291A (en) * | 2014-09-01 | 2014-11-26 | 安徽普和电子有限公司 | Capacitor guide pin |
| CN106298253A (en) * | 2015-06-10 | 2017-01-04 | 辽宁立德电力工程设计有限公司 | A kind of super capacitor electrode sheet and preparation method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1295715A (en) * | 1997-12-18 | 2001-05-16 | 科学生产企业(埃克信) | Capacitor with dual electric layer |
| CN101142643A (en) * | 2005-07-29 | 2008-03-12 | 精工电子微型器件有限公司 | Electrochemical cell |
| CN101454853A (en) * | 2006-05-29 | 2009-06-10 | 松下电器产业株式会社 | Electric double layer capacitor and method for manufacturing the same |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2000277384A (en) * | 1999-03-23 | 2000-10-06 | Hitachi Aic Inc | Electrolytic capacitor |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1295715A (en) * | 1997-12-18 | 2001-05-16 | 科学生产企业(埃克信) | Capacitor with dual electric layer |
| CN101142643A (en) * | 2005-07-29 | 2008-03-12 | 精工电子微型器件有限公司 | Electrochemical cell |
| CN101454853A (en) * | 2006-05-29 | 2009-06-10 | 松下电器产业株式会社 | Electric double layer capacitor and method for manufacturing the same |
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