CN201886904U - Laminated high-voltage mixing electrochemical capacitor - Google Patents
Laminated high-voltage mixing electrochemical capacitor Download PDFInfo
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- CN201886904U CN201886904U CN2010206328483U CN201020632848U CN201886904U CN 201886904 U CN201886904 U CN 201886904U CN 2010206328483 U CN2010206328483 U CN 2010206328483U CN 201020632848 U CN201020632848 U CN 201020632848U CN 201886904 U CN201886904 U CN 201886904U
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- plate
- electrochemical capacitor
- high voltage
- lead
- stacked high
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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 utility model discloses a laminated high-voltage mixing electrochemical capacitor, which comprises a casing, an anode leading-out end, a plurality of bipolar pole plates and a cathode leading-out end. The bipolar pole plates are located between the anode leading-out end and the cathode leading-out end, partition plates are arranged among the adjacent bipolar pole plates, and the bipolar pole plates are located in electrolyte. The laminated high-voltage mixing electrochemical capacitor is characterized in that the bipolar pole plates are lead plates or lead alloy plates, a smooth surface of each lead plate or lead alloy plate is coated with carbon powder so as to be utilized as a cathode, a rough surface of each lead plate or lead alloy plate is provided with a lead dioxide layer to be utilized as an anode, and the lead plates or lead alloy plates form an isolator of two adjacent capacitors. The pole plates reduces series connection resistance between the capacitors to the utmost extent due to bipolar design, power density is high, and simultaneously energy density is also increased obviously. As the anodes adopt forming type electrodes, cycle lives of the anodes and the cathodes are matched excellently. The capacitor is long in service life and accordingly has excellent application prospect.
Description
Technical field
The utility model relates to a kind of electrochemical energy storing device, especially a kind of stacked high voltage hybrid electrochemical capacitor.
Background technology
Along with constant development of economy, the energy, resource and environment etc. becomes the focal issue of society, seeks cleaning, the energy renewable and resource-conserving and be the very urgent and unusual difficult task of human society.
At present, mainly contain three types energy storage device at energy field: battery, physical capacitor and electrochemical capacitor (also claiming ultracapacitor).Electrochemical capacitor is a kind of novel green energy storage device between traditional physical capacitor and battery behavior that grew up in the last few years, has the fast charging and discharging characteristic, power density big (being more than tens times of common batteries), have extended cycle life (cycle-index can reach more than 100,000 times) serviceability temperature wide ranges (between-40 ℃～75 ℃).Based on these special performances, electrochemical capacitor has extraordinary application prospect.
According to the difference of energy storage mechanism, electrochemical capacitor can be divided into double electric layer capacitor and pseudo capacitance device two big classes.Double electric layer capacitor is to utilize the interfacial electric double layer electric capacity that forms between electrode and the electrolyte to come stored energy, and its electrode adopts the porous carbon material with high-specific surface area usually.The pseudo capacitance capacitor is meant on electrode surface or the body two dimension or accurate two-dimensional space in mutually, electrode active material carries out underpotential deposition, make it that quick, reversible chemisorbed/desorption or oxidation/reduction reaction take place, thereby produce the specific capacity higher than double electric layer capacitor, its electrode material mainly is metal oxide and conducting polymer.
In order to obtain high energy density and power density simultaneously, the development in recent years a kind of novel asymmetric electrochemical capacitor (also claiming hybrid electrochemical capacitor) that gets up, promptly a utmost point of capacitor is a double layer electrodes, another is the pseudo capacitance electrode very.Asymmetric electric chemical super capacitor combines the advantage of two class electrochemical capacitors, can satisfy in the practical application load better to the whole requirement of the energy density and the power density of power-supply system.
In the asymmetric electrochemical capacitor of each quasi-metal oxides/carbon, PbO
2
/ C system is because material price is low and PbO
2
Electrode manufacturing technology maturation is fit to make the large capacity version energy storage device very much; Owing to adopt aqueous sulfuric acid, have the highest conductivity, so the capacitor internal resistance is very low simultaneously as electrolyte; The electrochemical window of this system is 2.20 ~ 0.80V in addition, is only second to organic system, is fit to very much make the high power type energy storage device.
In actual use,, monolithic capacitor must be carried out connection in series-parallel, reach suitable capacitance and operating voltage, adopt outer connected mode usually as accessory power supply.Because existing P bO
2
The asymmetric electrochemical capacitor of/C, the power density height, have extended cycle life, but its energy density is lower, therefore behind the capacitor bank, volume is bigger, and energy density is lower, do not reach the requirement of electric motor car and power battery for hybrid electric vehicle accessory power supply, the requirement that does not reach solar energy and wind energy power plant energy-storage battery accessory power supply, limited the range of application of this capacitor widely.
Summary of the invention
The utility model purpose is: provide a kind of not only volume little, the energy density height, have extended cycle life, and the stacked high voltage hybrid electrochemical capacitor assembly that also significantly improves of power density, so that satisfy the accessory power supply requirement of electric motor car and power battery for hybrid electric vehicle and solar energy and wind energy power plant energy storage device.
The technical solution of the utility model is: a kind of stacked high voltage hybrid electrochemical capacitor, comprise housing, anodal exit, polylith double polarity plate and negative pole exit, described polylith double polarity plate is between described anodal exit and described negative pole exit, between the adjacent plate of described polylith double polarity plate dividing plate is arranged, described polylith double polarity plate is arranged in electrolyte, it is characterized in that, described double polarity plate is stereotype or lead alloy plate, the one side that described stereotype or lead alloy plate are smooth is coated with carbon dust as negative electrode, the titanium dioxide lead layer is arranged as positive electrode on the coarse one side of described stereotype or lead alloy plate, described stereotype or lead alloy plate self constitute the slider of adjacent two capacitors.
Preferably, described double polarity plate is 3-6.
Preferably, described electrolyte is colloidal electrolyte.
Preferably, described electrolyte is dilute sulfuric acid.
Preferably, described anodal exit, polylith double polarity plate and negative pole exit all adopt molded plastic frame to fix, and cohere mode or hot melting way assembling with resin between the frame.
Preferably, described dividing plate is the AGM(glass fibre cotton) dividing plate.
Preferably, described block board thickness 1.0-1.5mm, intensity is 10Kpa.
Preferably, the structure of described stacked high voltage hybrid electrochemical capacitor is pregnant solution type structure or valve-regulated sealed structure.
The utility model has the advantages that:
1. this hybrid electrochemical capacitor provided by the utility model,
Owing to adopt double polarity plate, adjacent two capacitors are connected with the shortest path, minimum connection resistance, so capacitor bank has higher power density and energy density, littler volume.
2. anodal the employing forms the formula electrode described in the utility model, and internal resistance is very little; Form the formula electrode, in case positive material comes off, its surface again can be oxidized, forms new active material layer, therefore has extremely long cycle life, can realize the life-span coupling with negative pole.
3. the utility model is because the aqueous sulfuric acid that adopts high conductivity as electrolyte, has the very high power charge-discharge characteristic.Can satisfy the requirement of electric motor car and power battery for hybrid electric vehicle and the requirement of solar energy and wind energy power plant energy storage device accessory power supply fully.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further described:
Fig. 1 is the stacked high voltage hybrid electrochemical capacitor of the utility model monomer principal section figure;
Fig. 2 is the double polarity plate schematic diagram in the stacked high voltage hybrid electrochemical capacitor of the utility model;
Fig. 3 is the double polarity plate profile in the stacked high voltage hybrid electrochemical capacitor of the utility model;
Fig. 4 is the exit positive plate profile in the stacked high voltage hybrid electrochemical capacitor of the utility model;
Fig. 5 is the exit negative plate profile in the stacked high voltage hybrid electrochemical capacitor of the utility model;
Fig. 6 is five monomer series-connected assembly principal section figure that form of the stacked high voltage hybrid electrochemical capacitor of utility model;
Wherein: 1. anodal exit; 11. anodal plumbous collector; 2. negative pole exit; 21. negative electrode lead collector; 3. dividing plate; 4. double polarity plate; 41. plumbous collector; 42. carbon dust material; 43. brown lead oxide film; 5. shell; 6. pole plate plastic frame.
Embodiment
Embodiment 1: stacked high voltage hybrid electrochemical capacitor as shown in Figure 1, be packaged with the anodal exit of of arranging successively 1, four double polarity plates 4 and negative pole exits 2 in its shell 5, that the dividing plate 3 between the adjacent plate adopts is commercial AGM dividing plate (thickness 1.0mm 10KPa); And the electrolyte of perfusion is dilute sulfuric acid (density 1.28g/cm
3
).Described positive and negative electrode exit is respectively as the both positive and negative polarity of capacitor.
As Fig. 2, shown in Figure 3, the structure of double polarity plate 4 is, stereotype or lead alloy plate are as plumbous collector: stereotype or lead alloy plate embed in the plastics square frame 6, and front is negative pole, is coated with capacitance electrode material 42; Reverse side is anodal, and it forms brown lead oxide film 43 with the anode electrochemical mode of oxidizing through the surface of roughened in the initial charge process; Stereotype or lead alloy plate self are again the sliders of adjacent two capacitor electrode chemical characteristics simultaneously.
As shown in Figure 4, anodal exit is the single electrode of double polarity plate 4, and is promptly anodal, and stereotype or lead alloy plate are drawn from the top, and the cancellation negative pole forms anodal plumbous collector 11.
As shown in Figure 5, the exit of negative pole described in the present embodiment is the single electrode of double polarity plate 4, and promptly negative pole is drawn stereotype or lead alloy plate from the top, and cancellation is anodal, forms negative electrode lead collector 21.
Stereotype or lead alloy plate laminate after adopting the terne metal of tin content 0.6% to roll in the present embodiment, and thickness is about 1.0 ~ 1.5mm, is cut into rectangular-shaped then.The surface roughening processing method can be the direct annular knurl in surface in the process of rolling, and laminates after also can rolling with the polishing of copper wire roller.
The components by weight of capacitance electrode material described in the present embodiment is as follows: active carbon 70%, graphite powder 15%, acetylene black 5%, PVDF10%, wherein active carbon adopts specific area 1500m
2
/ g, middle porosity greater than 40%, the commercialization active carbon of granularity 5-10 μ m.Earlier active carbon, graphite powder and acetylene black are done and mixed 5 minutes, add the solution of the N-methyl pyrrolidone (NMP) of PVDF, use an amount of N-methyl pyrrolidone furnishing thin pulp shape then, stirred 1-2 hour, fully mixing.
Plastics square frame recruitment engineering plastics (ABS) injection molded of anodal exit 1 described in the present embodiment, negative anodal exit 2 and the bipolarity utmost point 4 plates.The plastics square frame adopts epoxy resin to cohere the capacitor case of packing into then during assembling.
Embodiment 2:
Stacked high voltage hybrid electrochemical capacitor as shown in Figure 6 is combined in the capacitor of 5 five unit in the capacitor case with 5 single lattice by series system.Connect by the through-wall welding mode between single lattice, other execution modes are with embodiment 1.
The above only is the utility model preferred embodiment, and the various variations that those skilled in the art carries out in not breaking away from claim limited range of the present utility model all should be in protection range of the present utility model.
Claims (8)
1. stacked high voltage hybrid electrochemical capacitor, comprise housing, anodal exit, polylith double polarity plate and negative pole exit, described polylith double polarity plate is between described anodal exit and described negative pole exit, between the adjacent plate of described polylith double polarity plate dividing plate is arranged, described polylith double polarity plate is arranged in electrolyte, it is characterized in that, described double polarity plate is stereotype or lead alloy plate, the one side that described stereotype or lead alloy plate are smooth is coated with carbon dust as negative electrode, the titanium dioxide lead layer is arranged as positive electrode on the coarse one side of described stereotype or lead alloy plate, described stereotype or lead alloy plate self constitute the slider of adjacent two capacitors.
2. stacked high voltage hybrid electrochemical capacitor according to claim 1 is characterized in that, described double polarity plate is 3-6.
3. stacked high voltage hybrid electrochemical capacitor according to claim 1 is characterized in that described electrolyte is colloidal electrolyte.
4. stacked high voltage hybrid electrochemical capacitor according to claim 1 is characterized in that described electrolyte is dilute sulfuric acid.
5. stacked high voltage hybrid electrochemical capacitor according to claim 1, it is characterized in that, described anodal exit, polylith double polarity plate and negative pole exit all adopt molded plastic frame to fix, and cohere mode or hot melting way assembling with resin between the frame.
6. stacked high voltage hybrid electrochemical capacitor according to claim 1 is characterized in that, the structure of described stacked high voltage hybrid electrochemical capacitor is pregnant solution type structure or valve-regulated sealed structure.
7. stacked high voltage hybrid electrochemical capacitor according to claim 1 is characterized in that described dividing plate is the glass fibre cotton dividing plate.
8. stacked high voltage hybrid electrochemical capacitor according to claim 8 is characterized in that, described block board thickness 1.0-1.5mm, and intensity is 10Kpa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206328483U CN201886904U (en) | 2010-11-30 | 2010-11-30 | Laminated high-voltage mixing electrochemical capacitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206328483U CN201886904U (en) | 2010-11-30 | 2010-11-30 | Laminated high-voltage mixing electrochemical capacitor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201886904U true CN201886904U (en) | 2011-06-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206328483U Expired - Fee Related CN201886904U (en) | 2010-11-30 | 2010-11-30 | Laminated high-voltage mixing electrochemical capacitor |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103268928A (en) * | 2013-03-20 | 2013-08-28 | 钱志刚 | Bipolar battery and bipolar energy storage apparatus |
| CN106450504A (en) * | 2016-10-11 | 2017-02-22 | 超威电源有限公司 | Bipolar lead-acid storage battery |
| CN109637818A (en) * | 2018-12-29 | 2019-04-16 | 苏州大学 | A kind of lead carbon supercapacitor |
-
2010
- 2010-11-30 CN CN2010206328483U patent/CN201886904U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103268928A (en) * | 2013-03-20 | 2013-08-28 | 钱志刚 | Bipolar battery and bipolar energy storage apparatus |
| CN103268928B (en) * | 2013-03-20 | 2015-09-23 | 钱志刚 | Bipolar battery and bipolarity energy storage device |
| CN106450504A (en) * | 2016-10-11 | 2017-02-22 | 超威电源有限公司 | Bipolar lead-acid storage battery |
| CN109637818A (en) * | 2018-12-29 | 2019-04-16 | 苏州大学 | A kind of lead carbon supercapacitor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110629 Termination date: 20131130 |