CN102969170A - Internal cascade type super capacitor with high working voltage - Google Patents
Internal cascade type super capacitor with high working voltage Download PDFInfo
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- CN102969170A CN102969170A CN2012105101207A CN201210510120A CN102969170A CN 102969170 A CN102969170 A CN 102969170A CN 2012105101207 A CN2012105101207 A CN 2012105101207A CN 201210510120 A CN201210510120 A CN 201210510120A CN 102969170 A CN102969170 A CN 102969170A
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- ultracapacitor
- super capacitor
- capacitor
- working voltage
- high working
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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 internal cascade type super capacitor with high working voltage. The internal cascade type super capacitor consists of an upper end cover plate (1), an insulating ring sheet (2), an electrode sheet (3), a membrane (4) and a shell (5), wherein the insulating ring sheet (2), the electrode sheet (3) and the membrane (4) are located inside the shell (5), and are repeatedly connected in series according to an order of the insulating ring sheet (2), the electrode sheet (3) and the membrane (4) in a circulating way; an inner ring of the insulation ring is the same as the electrode sheet in size; and the outer ring of the insulation ring is slightly greater than the membrane in size. According to the internal cascade type super capacitor provided by the invention, the plurality of electrode sheets are assembled in a columnar capacitor in the internal cascade manner, so that the working voltage of the super capacitor is improved to dozens to hundreds volts from 2.5 V of the traditional super capacitor. Compared with an external cascade type capacitor module, the super capacitor provided by the invention can be used for effectively reducing the weight and the volume of the system, so that the power density and the energy density of the super capacitor system can be further improved. The super capacitor provided by the invention has the special advantages in the high-voltage application field with limited space.
Description
Technical field
The invention belongs to the ultracapacitor field, be specifically related to a kind of ultracapacitor with interior cascaded structure of high working voltage.
Background technology
Ultracapacitor is a kind of novel energy-storing device between conventional electrostatic capacitor and secondary cell, the advantage such as have the power density height, the speed that discharges and recharges is fast, have extended cycle life.All have a wide range of applications in fields such as communication, electric automobile, Aero-Space, military project, stand-by power supplies.Wherein, ultracapacitor is that it uses one of focus in the application aspect the high-tension high-power power supply.Mode by capacitor's seriesu improves global voltage, and the high power density of utilizing simultaneously ultracapacitor itself is one of ideal solution of preparation high-power power supply.
Ultracapacitor is divided into water system and organic system two classes according to the electrolytical difference of adopt.Adopt present assembling mode, the operating voltage of aqueous super capacitor is that 1-2V(is generally 1V), the operating voltage of organic system ultracapacitor is generally 2.5-2.7V at 2-3V() between.Because the brownout of above-mentioned ultracapacitor monomer need to be connected to it, namely adopt the mode of outer series connection that several ultracapacitor monomers are connected together, form the ultracapacitor module with high working voltage, to satisfy the different market demands.For example: Toyota Motor under ten thousand hybrid vehicle more than 8 section 40 used more than 1,000 ten thousand ultracapacitors, adopt 7 2.1V, the 68F ultracapacitor is monomer series-connected, 3 groups compose in parallel 14.7V afterwards, the 29.1F system; Scania group has adopted 4 125V ultracapacitor modules being made by Maxwell company in its 125V ethanol hybrid vehicle, total capacity is 400Wh; The emergency hatch dynamical system of airbus A380 has adopted U.S. Maxwell ultracapacitor module, and its peak current is 60A, gross power 11kW, and stand-by time is 8 hours, can reach 25 years useful life; In super capacitor module, this module can provide the power output of 100kW to the heavy tactics truck of certain model of employing hybrid power, makes simultaneously the fuel consumption of truck reduce by 20% with power storage.But, there are the following problems with the technical scheme that improves the ultracapacitor operating voltage to adopt outer series connection mode to make up the ultracapacitor module: in the ultracapacitor module that makes up by outer series connection mode (or ultracapacitor bag), have a series of extra accessories such as connector, encapsulating housing and module equalizing system.The volume and weight that this can increase ultracapacitor module integral body undoubtedly causes the reduction of system capacity density and power density.Shiue etc. have proposed a kind of manufacture method of high voltage columnar capacitor in the United States Patent (USP) (US6579327B1) of its application: capacitor anode, negative pole and two-layer electrode are separated by barrier film and be wound into one.Adopt the method preparation with Fe
3O
4/ C is that the capacitor of active material can discharge and recharge in the potential region of 0-5V.Amatucci proposes a kind of stacked flexible packed super-capacitor and preparation method thereof in patent (US2002136946A1).But column takeup type structure is merely able to that the lamination number of plies (the capacitor monomer number of namely mutually connecting) is had strict restriction, and the voltage room for promotion of capacitor is very little; The structure of stacked flexible package is because the restriction of flexible package production technology has strict restriction to the lamination number of plies equally.In addition, adopt the structure that proposes in the above-mentioned patent, can occur contacting between barrier film and the barrier film after the fluid injection, thereby cause the generation of capacitor internal short-circuit phenomenon.When capacitor was worked under the high voltage window, this internal short-circuit can cause the decomposition of electrolyte, caused the capacitor spalling or blasted.
In order to address the above problem, the present invention proposes a kind of stacked ultracapacitor of column with interior cascaded structure, namely by in a housing with electrode slice, barrier film and dead ring successively circulating series, form the column ultracapacitor with high working voltage.Dead ring can prevent contacting between barrier film and the barrier film, and then effectively avoids the generation of capacitor internal short-circuit situation.Mode by interior series connection is assembled in multi-layered electrode sheet and barrier film in the columnar capacitor, consist of the single capacitor of a plurality of mutual series connection, can make the operating voltage of capacitor can be from the operating voltage 1V(water system of the monomer that consisted of by two-layer electrode) or the 2.5V(organic system) bring up to tens volts to hundreds of volts.Compare with outer tandem type capacitor module, adopt the ultracapacitor of structure construction high working voltage of the present invention can effectively reduce the weight and volume of system, thereby further improve energy density and the power density of super capacitor system.The present invention seems particularly important for the application scenario that space and weight are subject to strict restriction.Adopt structure of the present invention to be expected to the application extension of ultracapacitor is arrived limited space high-voltage applications field.
Summary of the invention
The interior tandem type ultracapacitor that the purpose of this invention is to provide a kind of high working voltage, this ultracapacitor is assembled in the multi-layered electrode sheet in the columnar capacitor by the mode of interior series connection, the operating voltage of ultracapacitor can be brought up to tens volts to hundreds of volts from the 2.5V of traditional ultracapacitor.
The invention provides a kind of interior tandem type ultracapacitor of high working voltage, this ultracapacitor is by upper end cover plate (1), insulation ring plate (2), and electrode slice (3), barrier film (4), housing (5) forms;
Insulation ring plate (2), electrode slice (3), barrier film (4) is positioned at the inside of housing (5), and according to insulation ring plate (2), electrode slice (3), barrier film (4) reiteration circulating series;
The electrode slice that wherein closes on and barrier film consist of single capacitor, and these single capacitors are connected mutually, thereby improve the operating voltage of whole capacitor.
Ring size and electrode slice are measure-alike in the insulation ring plate, and insulation ring plate outer shroud size is slightly larger than diaphragm size.
The interior tandem type ultracapacitor of high working voltage provided by the invention, described ultracapacitor encapsulate by housing (5) and upper end cover plate (1) and make the column type ultracapacitor.
The interior tandem type ultracapacitor of high working voltage provided by the invention,: described ultracapacitor is assembled in the multi-layered electrode sheet in the columnar capacitor by the mode of interior series connection, and the operating voltage of ultracapacitor is from the 1V(water system of traditional ultracapacitor) or the 2.5V(organic system) bring up to tens volts to hundreds of volts.
The interior tandem type ultracapacitor of high working voltage provided by the invention, described insulation ring plate (2) can prevent contacting between barrier film and the barrier film, thereby effectively avoid the generation of capacitor internal short-circuit situation.
Use liquid, glue or solid electrolyte in the interior tandem type ultracapacitor of high working voltage provided by the invention.
Interior serial connected super capacitor with high working voltage provided by the present invention has the following advantages:
1. the mode by interior series connection is encapsulated in a plurality of ultracapacitor monomers in the shell of a column type, and the operating voltage that can make ultracapacitor is brought up to tens volts of supreme hectovolts from the 2.5V of traditional ultracapacitor.
2. compare with outer tandem type capacitor module, cascaded structure makes up the ultracapacitor of high working voltage in adopting, and can effectively reduce the weight and volume of system, further improves energy density and the power density of capacitor system.
3. the interior series connection high working voltage super capacitor that the present invention provided is applicable to the high working voltage occasion that traditional ultracapacitor can't satisfy the limited space of its demand.
Description of drawings
Series super capacitor bank structural representation in Fig. 1 high working voltage; Wherein, 1 is the upper end cover plate; 2 are the insulation ring plate; 3 is electrode slice; 4 is barrier film; 5 is housing;
The interior serial connected super capacitor discharge voltage of Fig. 2 triple electrode (two single capacitor) and the curve of time;
The interior serial connected super capacitor charging/discharging characteristic curve of Fig. 3 triple electrode (two single capacitor);
1000 charge and discharge cycles stability test results of the interior serial connected super capacitor of Fig. 4 triple electrode (two single capacitor).
Embodiment
The following examples will be further described the present invention, but not thereby limiting the invention.
Embodiment 1:
The assembling of series capacitor in the triple electrode: have the aluminium foil pole piece of activated carbon electrodes to get the circular pole piece of three diameter 9mm, pole piece thickness 200um from double spread with punching apparatus; Getting three internal diameters with punching apparatus from polypropylene film is 9mm, and external diameter is the ring plate of 16m, and the thickness of polypropylene film is 200um; Getting two diameters with punching apparatus is 14mm ultracapacitor dedicated diaphragm.
Get 2032 type button cell drain pans, the ground floor ring plate that insulate is put into shell, then the ground floor electrode is put into the circular hole of ground floor ring plate, then place the ground floor barrier film thereon, drip 1M TEABF with dropper
4-PC electrolyte 6mg; Then place second layer dead ring at the ground floor barrier film, subsequently second layer electrode slice is put into the endoporus of second layer ring plate, next be placed on second layer barrier film top and drip 1M TEABF
4-PC electrolyte 6mg; Then put into three-layer insulated ring and triple electrode sheet and drip 1M TEABF
4-PC electrolyte 6mg; The last a slice of placing in the above covers the button cell top shell and also seals with the button cell sealing machine for increasing stainless steel substrates and the spring leaf of contact.Whole operating process is all carried out in being full of the glove box of argon gas.Encapsulate complete button cell placement and from glove box, take out after 24 hours, be used for electrochemical property test.
Fig. 1 is the structural representation of serial connected super capacitor in the high working voltage.
The discharge voltage of serial connected super capacitor and the test of time relationship in the triple electrode sheet: with packaged button cell, place 24 hours after electrode impregnation fully, adopt new Weir charging-discharge tester system, at constant current 1A/g(with respect to single-layer electrodes) it is carried out charging and discharging under the condition, charge cutoff voltage is set as respectively 2.5V, 3V, 3.5V, 3.7V, 4V, 4.5V 4.7V and 5V are with capacitor terminal voltage and the relation of time in the computer recording discharge process.
Fig. 2 is voltage and the time graph of the discharge process of serial connected super capacitor in the triple electrode sheet.Can find out from the result of Fig. 2, rising along with cut-ff voltage, the discharge curve of ultracapacitor keeps good linear rule always, be 64.3mF by discharge time of 0-5V calculating its electric capacity, and the electric capacity (0-2.5V) of the symmetric figure ultracapacitor that is made of two-layer electrode slice with equal in quality is 2.3 times of interior series capacitor for 150mF().This result verification adopt consisting of interior serial connected super capacitor by the triple electrode sheet and having the effect that two symmetry ultracapacitors are in series of structure of the present invention.
Embodiment 2:
The assembling of series capacitor in the triple electrode sheet: with embodiment 1.
Serial connected super capacitor discharge voltage and time relationship test in the triple electrode sheet: to serial connected super capacitor in the coin shape of encapsulation and fully impregnation with new Weir charging-discharge tester system at constant current 1A/g(with respect to single-layer electrodes) under the condition, between 0-5V, carry out charge-discharge performance and test.Relation with capacitor terminal voltage and time in the computer recording discharge process.
Fig. 3 is the charge-discharge characteristic curve of serial connected super capacitor in the triple electrode sheet.Can find out that from the result of Fig. 3 the serial connected super capacitor all shows typical electric double layer capacitance behavior discharging and recharging of 0-5V in the triple electrode sheet of assembling in the interval.Simultaneously, the spalling phenomenon does not appear in the serial connected super capacitor in the coin shape of assembling in the charge and discharge process of 0-5V, and this explanation dead ring can play the effect of separating diaphragm, thereby effectively avoids the generation of capacitor internal short-circuit.
Embodiment 3:
The assembling of series capacitor in the triple electrode sheet: with embodiment 1.
1000 charge and discharge cycles stability tests of serial connected super capacitor in the triple electrode sheet: to serial connected super capacitor in encapsulation and the sufficient coin shape of impregnation with new prestige charging-discharge tester system, at constant current 1A/g(with respect to single-layer electrodes) under the condition, between 0-5V, carry out the charge and discharge cycles stability test.1000 circulations are with the relation between discharge time and the cycle-index in the computer recording discharge process.
Fig. 4 is 1000 charge and discharge cycles stability curves of serial connected super capacitor in the triple electrode sheet.Can find out from the result of Fig. 4: 1000 charge and discharge cycles, the serial connected super capacitor is in the stability that has kept good in the interval that discharges and recharges of 0-5V in the triple electrode sheet.This result has further confirmed to adopt insulation ring plate isolation diaphragm can avoid the generation of capacitor internal short-circuit phenomenon.
Above embodiment explanation adopts structure of the present invention can prepare the interior tandem type ultracapacitor of high working voltage.Compare with outer tandem type ultracapacitor module, the tandem type ultracapacitor can reduce the weight and volume of system effectively in adopting, and improves energy density and the power density of capacitor.In addition, interior tandem type ultracapacitor provided by the present invention has reliable cyclical stability.
Claims (4)
1. the interior tandem type ultracapacitor of a high working voltage is characterized in that: this ultracapacitor is by upper end cover plate (1), insulation ring plate (2), and electrode slice (3), barrier film (4), housing (5) forms;
Insulation ring plate (2), electrode slice (3), barrier film (4) is positioned at the inside of housing (5), and according to insulation ring plate (2), electrode slice (3), barrier film (4) reiteration circulating series;
Ring size and electrode slice are measure-alike in the insulation ring plate, and insulation ring plate outer shroud size is slightly larger than diaphragm size.
2. according to the interior tandem type ultracapacitor of high working voltage claimed in claim 1, it is characterized in that: described ultracapacitor encapsulates by housing (5) and upper end cover plate (1) and makes the column type ultracapacitor.
3. according to the interior tandem type ultracapacitor of high working voltage claimed in claim 1, it is characterized in that: described ultracapacitor is assembled in the multi-layered electrode sheet in the columnar capacitor by the mode of interior series connection, and the operating voltage of ultracapacitor is brought up to tens volts to hundreds of volts from the 1V of traditional aqueous super capacitor or the 2.5V of organic system ultracapacitor.
4. according to the interior tandem type ultracapacitor of high working voltage claimed in claim 1, it is characterized in that: described insulation ring plate (2) can prevent contacting between barrier film and the barrier film, thereby effectively avoids the generation of capacitor internal short-circuit situation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012105101207A CN102969170A (en) | 2012-12-03 | 2012-12-03 | Internal cascade type super capacitor with high working voltage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012105101207A CN102969170A (en) | 2012-12-03 | 2012-12-03 | Internal cascade type super capacitor with high working voltage |
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| CN102969170A true CN102969170A (en) | 2013-03-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2012105101207A Pending CN102969170A (en) | 2012-12-03 | 2012-12-03 | Internal cascade type super capacitor with high working voltage |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111742384A (en) * | 2018-02-22 | 2020-10-02 | 阿维科斯公司 | Packaged supercapacitor module with high voltage and low equivalent series resistance |
| US11721494B2 (en) | 2017-02-20 | 2023-08-08 | The Research Foundation For The State University Of New York | Multi-cell multi-layer high voltage supercapacitor apparatus including graphene electrodes |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4616290A (en) * | 1983-04-19 | 1986-10-07 | Murata Manufacturing Co., Ltd. | Electric double layer capacitor |
| US20030095372A1 (en) * | 2001-11-01 | 2003-05-22 | Nec Tokin Corporation | Electric double-layer capacitor, and process for producing the same |
| JP2003217985A (en) * | 2002-01-23 | 2003-07-31 | Meidensha Corp | Laminated electric double-layer capacitor |
| KR20090118325A (en) * | 2008-05-13 | 2009-11-18 | 비나텍주식회사 | Module type edlc and method |
| CN101802947A (en) * | 2007-09-14 | 2010-08-11 | 株式会社明电舍 | Bipolar layered type electric double layer capacitor |
-
2012
- 2012-12-03 CN CN2012105101207A patent/CN102969170A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4616290A (en) * | 1983-04-19 | 1986-10-07 | Murata Manufacturing Co., Ltd. | Electric double layer capacitor |
| US20030095372A1 (en) * | 2001-11-01 | 2003-05-22 | Nec Tokin Corporation | Electric double-layer capacitor, and process for producing the same |
| JP2003217985A (en) * | 2002-01-23 | 2003-07-31 | Meidensha Corp | Laminated electric double-layer capacitor |
| CN101802947A (en) * | 2007-09-14 | 2010-08-11 | 株式会社明电舍 | Bipolar layered type electric double layer capacitor |
| KR20090118325A (en) * | 2008-05-13 | 2009-11-18 | 비나텍주식회사 | Module type edlc and method |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11721494B2 (en) | 2017-02-20 | 2023-08-08 | The Research Foundation For The State University Of New York | Multi-cell multi-layer high voltage supercapacitor apparatus including graphene electrodes |
| CN111742384A (en) * | 2018-02-22 | 2020-10-02 | 阿维科斯公司 | Packaged supercapacitor module with high voltage and low equivalent series resistance |
| US11875942B2 (en) | 2018-02-22 | 2024-01-16 | KYOCERA AVX Components Corporation | Encapsulated supercapacitor module having a high voltage and low equivalent series resistance |
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Application publication date: 20130313 |