CN1862726A - Internal voltage balance super-capacitor - Google Patents
Internal voltage balance super-capacitor Download PDFInfo
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- CN1862726A CN1862726A CNA2006100143176A CN200610014317A CN1862726A CN 1862726 A CN1862726 A CN 1862726A CN A2006100143176 A CNA2006100143176 A CN A2006100143176A CN 200610014317 A CN200610014317 A CN 200610014317A CN 1862726 A CN1862726 A CN 1862726A
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- capacitor
- electric pole
- internal voltage
- voltage balance
- film resistance
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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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- Electric Double-Layer Capacitors Or The Like (AREA)
Abstract
This invention relates to super capacitor. The capacitor is inner stack up series mode, interlayer film resistance is brought to conquer inner uniform voltage problem in multi monomer inner series high voltage super capacitor. The structure of the super capacitor is simple, and it is easy to make high voltage, large capacity and high performance capacitor.
Description
Technical field
The present invention relates to a kind of ultracapacitor, belong to electrochemical double layer ultracapacitor field.
Technical background
Adopt the ultracapacitor of lamination technology making at present, main charcoal charcoal polar electric pole and charcoal, the metal oxide polar electric pole of adopting is as nickel oxide etc., no matter adopt which kind of polar electric pole, generally all be to process by dusty material, and electrolyte also mostly is potassium hydroxide aqueous solution, this technology at home and abroad comparative maturity, price lower, be used on the industrial products.Problem is that this electrolytical operating voltage is generally worked under one volt of voltage than low, because this electrolyte electrochemical decomposition voltage theoretical boundary is 1.4 volts, has surpassed this voltage, and whole capacitor device work system will be destroyed.In order to obtain higher operating voltage, just low capacitor internal series-connection of these monomer voltages must be formed high voltage.This is domestic and international common way.300 or 400 volts operating voltage when we generally wish operating voltage, so just must be with hundreds of units in series, each capacitor all has two collector electrodes, two electrodes, two barrier films thousands of different materials of adding up to assemble, difficulty is very big, and electrode material is a pasty state, and collector electrode is the metal shape, barrier film is the paper shape, just can finish product through all multiple operation such as excess pressure assembling, high temperature ageing, high strength sealings.Here the consistency of material, processing mold consistency of getting consistency, assembling process or the like all can produce small difference, has objectively formed the problem latency.In case even more serious is will cause positive feedback effect after having formed inconsistency, constantly strengthen this inconsistency, at last may certain capacitor or certain group capacitor surpass its maximum operating voltage and electrolyte gasification in the capacitor is decomposed, explosion, electrolyte such as overflow at many problems.
The electrochemical double layer ultracapacitor, when high voltage environment uses, adopt the interior series system of monomer can save volume and weight, increase specific capacity, but because above-mentioned, series connection realizes the ultracapacitor of high voltage-rated in adopting, can there be the capacity consistency problem in its capacitor monomer in manufacture process, and often need high current charge-discharge in using, when each monomer capacity tolerance in the capacitor is big, the capacitor of capacity minimum will at first reach rated voltage when charging.Therefore, if do not take necessary all pressures measure, can cause on the inner monomer of some capacitor that voltage is big and overvoltage destroys, therefore, all pressures measure between inner each monomer of capacitor is most important.
Being seen in the relevant ultracapacitor technology of pressure equalization of report at present, mainly is that the mode of adjunct circuit outside capacitor unit is carried out.Such as, fairly simple is at each capacitor unit next door resistance in parallel, controls the leakage current of whole monomer.This method has reduced the variation of corresponding parallel resistance between each monomer effectively.But, adopt this method at monomer loong shunt grading resistor, can increase the ultracapacitor volume, and bring certain difficulty for the manufacturing and the encapsulation of device.Another kind method is a capacitor unit active circuit balancing method, adopts this method, when change in voltage, promptly carries out mutual balance.This method can reduce any extra load on the monomer, increases work efficiency.But this makes the ultracapacitor manufacturing cost too high, and combined capacitor is bulky, and popularization and use are restricted.
Summary of the invention
Technical problem to be solved by this invention is that all pressures measure that overcomes available technology adopting increases the ultracapacitor volume, bring the weak point of certain difficulty for encapsulation and manufacturing process, provide a kind of simple in structure, be easy to make ultracapacitor with high-performance, high power capacity characteristics.The present invention adopts following technical scheme:
A kind of internal voltage balance super-capacitor, constitute by at least two monomer series-connected laminations of capacitor, each capacitor monomer comprises a pair of polar electric pole, is arranged on barrier film and electrolyte solution between the polar electric pole, described barrier film is provided with at least one hole, be provided with film resistance in the hole, the two sides of film resistance contacts with polar electric pole respectively.
Polar electric pole can be the carbonaceous polar electric pole.Film resistance is preferably the plastics resistor disc, and its resistance can be between 20 Ω-800 Ω, and thickness is between 0.05-1mm.
Ultracapacitor after the assembling, the monomer number can be between 2-1000.
Internal voltage balance super-capacitor of the present invention, introduce the interlayer film resistance, all press problem with the inside that effectively overcomes series connection high voltage ultracapacitor in many monomers, technology of pressure equalization does not increase the volume and weight of capacitor before all pressing basically in this kind, and have simple in structurely, be easy to manufacture the characteristics of high-performance, high capacity capacitor.Can be formed in the ultracapacitor that uses on the power uninterrupted power supply.
Description of drawings
The electric insulation diaphragm shape schematic diagram that Fig. 1 the present invention adopts.
The film resistance shape schematic diagram that Fig. 2 the present invention adopts.
The equivalent electric circuit of Fig. 3 ultracapacitor of the present invention.
The internal structure schematic diagram of Fig. 4 ultracapacitor of the present invention.Number in the figure: collector electrode 1, carbonaceous active material electrode (carbonaceous polar electric pole) 2, porous septum 3, film resistance 4.
Embodiment
Internal voltage balance super-capacitor proposed by the invention is a kind of double electric layer capacitor, and each monomer of internal series-connection has two overlapping electrode layers 2, and these two electrode layers are separated by two-layer electric insulation barrier film 3.In the middle of two barrier films 3, beat a certain size hole (seeing accompanying drawing 1), inlay the film resistance 4 (see accompanying drawing 2) of resistance between 20 Ω-800 Ω at the hole place.Hole can have different sizes, shape, and the quantity of hole also can be for two or more, and the position of hole is preferably in barrier film central authorities, but also can be to be positioned at other positions.
Film resistance of the present invention should be a kind of as plastics resistor disc and so on can strong acid-base resistance the film resistance of corrosion, stay in the middle of the electrochemical liquid, need add ambient pressure more than 10 tons during assembling, therefore resist die mould, the material self-deformation all has very high requirement, because the raw material of wood-charcoal material is to be in grume, under pressure, forms naturally and fill up the space that barrier film is inscribed simultaneously.
The advantage of capacitor of the present invention is by at monomer internal diaphragm place one resistance being set, and the big voltage super capacitor inside of connecting in many monomers forms a capacitance-resistance equalizer circuit, and accompanying drawing 3 is seen in its equivalent electric circuit signal.
Owing to adopt film resistance to be embedded in the hole place, this interior technology of pressure equalization does not increase capacitor basically and all presses preceding volume and weight.
The internal structure of internal voltage balance super-capacitor of the present invention is seen shown in the accompanying drawing 4.Adopt the present invention, can make the ultracapacitor that rated voltage is 2V-1000V.
The present invention adopts charcoal charcoal polar electric pole and charcoal, metal oxide polar electric pole as nickel oxide, ruthenium-oxide etc.
With the nickel foil is collector electrode 1, is positive and negative electrode with the carbonaceous active material, and promptly carbonaceous polar electric pole 2,100 Ω film resistances 4 are embedded in the central authorities of porous septum 3, are assembled into rated voltage 220V, the ultracapacitor of faraday's capacity 3.5F.
Prepare collector electrode 1 and carbonaceous polar electric pole 2 and porous septum 3 and film resistance 4 etc. with the method identical with embodiment 1.Difference is that used film resistance 4 is 200 Ω, is assembled into rated voltage 400V, and faraday's capacity is 1.5F.
Prepare collector electrode 1 and carbonaceous polar electric pole 2 and porous septum 3 and film resistance 4 etc. with the method identical with embodiment 1.Difference is that used film resistance 4 is 400 Ω, is assembled into rated voltage 500V, and faraday's capacity is 1.0F.
Embodiment 4
Prepare collector electrode 1 and carbonaceous polar electric pole 2 and porous septum 3 and film resistance 4 etc. with the method identical with embodiment 1.Difference is that used film resistance 4 is 300 Ω, is assembled into 600V rated, and faraday's capacity is 0.7F.
Embodiment 5
Prepare collector electrode 1 and carbonaceous polar electric pole 2 and porous septum 3 and film resistance 4 etc. with the method identical with embodiment 1.Difference is that used film resistance 4 is 300 Ω, is assembled into rated voltage 1000V, and faraday's capacity is 0.5F.
Embodiment 6
Prepare collector electrode 1 and carbonaceous polar electric pole 2 and porous septum 3 and film resistance 4 etc. with the method identical with embodiment 1.Difference is that used film resistance 4 is 700 Ω, is assembled into rated voltage 100V, and faraday's capacity is 5.0F.
Claims (6)
1. internal voltage balance super-capacitor, constitute by at least two monomer series-connected laminations of capacitor, each capacitor monomer comprises a pair of polar electric pole, is arranged on barrier film and electrolyte solution between the polar electric pole, it is characterized in that, described barrier film is provided with at least one hole, be provided with film resistance in the hole, the two sides of film resistance contacts with polar electric pole respectively.
2. internal voltage balance super-capacitor according to claim 1 is characterized in that, described polar electric pole is the carbonaceous polar electric pole.
3. internal voltage balance super-capacitor according to claim 1 is characterized in that, described film resistance is the plastics resistor disc.
4. internal voltage balance super-capacitor according to claim 1 is characterized in that, described film resistance resistance is between 20 Ω-800 Ω.
5. internal voltage balance super-capacitor according to claim 1 is characterized in that the thickness of described film resistance is between 0.05-1mm.
6. internal voltage balance super-capacitor according to claim 1 is characterized in that, described monomer number is between 2-1000.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100143176A CN100570775C (en) | 2006-06-13 | 2006-06-13 | Internal voltage balance super-capacitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100143176A CN100570775C (en) | 2006-06-13 | 2006-06-13 | Internal voltage balance super-capacitor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1862726A true CN1862726A (en) | 2006-11-15 |
| CN100570775C CN100570775C (en) | 2009-12-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB2006100143176A Expired - Fee Related CN100570775C (en) | 2006-06-13 | 2006-06-13 | Internal voltage balance super-capacitor |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101853738A (en) * | 2010-04-06 | 2010-10-06 | 珠海清华科技园创业投资有限公司 | Super capacitor for instruments |
-
2006
- 2006-06-13 CN CNB2006100143176A patent/CN100570775C/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101853738A (en) * | 2010-04-06 | 2010-10-06 | 珠海清华科技园创业投资有限公司 | Super capacitor for instruments |
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| CN100570775C (en) | 2009-12-16 |
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Granted publication date: 20091216 Termination date: 20170613 |
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| CF01 | Termination of patent right due to non-payment of annual fee |