CN201868253U - Super capacitor current collector - Google Patents
Super capacitor current collector Download PDFInfo
- Publication number
- CN201868253U CN201868253U CN2010206354613U CN201020635461U CN201868253U CN 201868253 U CN201868253 U CN 201868253U CN 2010206354613 U CN2010206354613 U CN 2010206354613U CN 201020635461 U CN201020635461 U CN 201020635461U CN 201868253 U CN201868253 U CN 201868253U
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- China
- Prior art keywords
- super capacitor
- liquid body
- collection liquid
- checker
- body according
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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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 super capacitor current collector, which comprises a grid made of lead or lead alloy and a tap. The super capacitor current collector is characterized in that the grid is provided with no through hole, and blind holes are formed by cells on the grid. The current collector can be made into a large-size carbon electrode with high capacity and low cost, and is especially suitable for aqueous electrolyte mixed electrochemical capacitors.
Description
Technical field
The utility model relates to the electrochemical energy storing device field, especially a kind of super capacitor collection liquid body.
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
2Electrode manufacturing technology maturation, water system electrolyte sulfuric acid conductivity height, PbO
2/ C system electrochemical window is 2.1V, very is fit to make the large capacity version energy storage device of high-energy-density, high power density.
The PbO that mentions in the document in the past
2The asymmetric electrochemical capacitor of/C, negative current collector adopts lead foil or titanium foil.Because collector plays the collected current effect on the one hand, as the skeleton of pole plate, lead foil or titanium foil are because self insufficient strength is not suitable for making the large scale pole plate on the other hand.
Patent 200920047447.9 discloses a kind of lead carbon supercapacitor collector, is plumbous shoestring, and thickness is 0.2 ~ 2mm, and a plurality of through holes or groove are set.When making the large scale pole plate, the insufficient strength of collector self, CURRENT DISTRIBUTION are also unreasonable, the power density that influence discharges and recharges; If increase collector thickness, can reduce the energy density of ultracapacitor.
Existing collector is not suitable for making the large scale pole plate, is not suitable for making energy type PbO
2The asymmetric electrochemical capacitor of/C does not reach the requirement of electric motor car and hybrid vehicle power energy storage device, the requirement that does not reach solar energy and wind energy power plant energy storage device, has limited the range of application of this capacitor widely.
Summary of the invention
The utility model purpose is: a kind of not only power density height is provided, the energy density height, the cost performance height, and the super capacitor collection liquid body that also significantly improves of cycle life, be fit to make jumbo hybrid electrochemical capacitor, so that 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.
The technical solution of the utility model is: a kind of super capacitor collection liquid body, comprise the checker and the lug of lead or lead alloy, described lug is positioned on the described checker, it is characterized in that, described checker is not provided with through hole, and the hole that the grid on the described checker forms is a blind hole.
Preferably, described blind hole is the lead foil sealing.
Preferably, the cross section of the frame of described checker can be rectangle, trapezoidal, circular, oval, triangle or polygon.
Preferably, the cross section of the interior muscle of described checker can be rectangle, trapezoidal, circular, oval, triangle or polygon.
Preferably, the interior muscle of described checker can be arranged to cross type or radiant type.
Preferably, the arrangement of described lug on checker can be middle or side setting type.
Preferably, the thickness of the frame of described checker and interior muscle is 1.0 ~ 5.5mm.
Preferably, the thickness of described lead foil is 0.3 ~ 1.0mm.
Preferably, described lead or lead alloy, for containing a kind of in alloying component antimony, calcium, aluminium, tin, sulphur, copper, the silver or more than one combination, the content of alloy is 0.05～20%.
Adopt collector of the present utility model can make large scale, big capacity, carbon electrode cheaply, be particularly suitable for the electrolytical PbO of water system
2/ C hybrid super capacitor.
The utility model has the advantages that:
Owing to adopt plumbous muscle and the compound form of lead foil, the pole plate intensity height of making can significantly not reduce the quality of collector simultaneously because of flexural deformation causes shedding, improves energy density; The guide functions of plumbous muscle, CURRENT DISTRIBUTION is more reasonable, and resistance is lower in making, and has high power characteristic.The utility model is simple in structure, and is easily manufactured, can adopt the casting method manufacturing, also can adopt the drawing manufactured.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further described:
Fig. 1 is a super capacitor collection liquid body of the present utility model, muscle, middle extreme ear structure schematic diagram in the cross type;
Fig. 2 is a super capacitor collection liquid body of the present utility model, muscle, side setting type extreme ear structure schematic diagram in the cross type;
Fig. 3 is a super capacitor collection liquid body of the present utility model, muscle, middle extreme ear structure schematic diagram in the radiant type;
Fig. 4 is a super capacitor collection liquid body of the present utility model, muscle, side setting type extreme ear structure schematic diagram in the radiant type;
Fig. 5 is a super capacitor collection liquid body of the present utility model, and the cross section of frame is a regular hexagon, and the cross section of interior muscle is the triangular structure schematic diagram;
Fig. 6 is a super capacitor collection liquid body of the present utility model, and the cross section of frame is a regular hexagon, and the cross section of interior muscle is the diamond structure schematic diagram.
Wherein: 1, lug; 2, frame muscle; 21, the frame of regular hexagonal section; 3, interior muscle; The interior muscle of 31 triangular-sections; The interior muscle of 32 diamond-shaped cross-sections; 4, lead foil.
Embodiment
Embodiment: 1:, adopt muscle, middle extreme ear structure in the cross type as Fig. 1, super capacitor collection liquid body shown in Figure 5.Overall dimension is: length x width x thickness, 248 * 152 * 3.0mm * mm * mm; Lead foil thickness is 0.6mm.The cross section of frame is a regular hexagon, and the cross section of interior muscle is a triangle.Collector adopts the lead-antimony alloy casting, and antimony content is 4.8～5%.
Embodiment 2: as Fig. 1, super capacitor collection liquid body shown in Figure 6, the cross section of interior muscle is a rhombus.
Present embodiment all the other with embodiment 1.
Embodiment 3: as Fig. 3, super capacitor collection liquid body shown in Figure 5, adopt muscle, middle extreme ear structure in the radiant type.
Present embodiment all the other with embodiment 1.
Embodiment 4: as Fig. 3, super capacitor collection liquid body shown in Figure 6, adopt muscle, middle extreme ear structure in the radiant type; The cross section of interior muscle is a rhombus.
Present embodiment all the other with embodiment 1.
Embodiment 5: as Fig. 1, super capacitor collection liquid body shown in Figure 5, adopt the lead-calcium-tin alloy casting, calcium content is 0.07～0.08%, and tin content is ..0.5～0.6%.
Present embodiment all the other 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. super capacitor collection liquid body comprises the checker and the lug of lead or lead alloy, and described lug is positioned on the described checker, it is characterized in that, described checker is not provided with through hole, and the hole that the grid on the described checker forms is a blind hole.
2. super capacitor collection liquid body according to claim 1 is characterized in that, described blind hole is the lead foil sealing.
3. super capacitor collection liquid body according to claim 1 is characterized in that, the cross section of the frame of described checker can be rectangle, trapezoidal, circular, oval, triangle or polygon.
4. super capacitor collection liquid body according to claim 1 is characterized in that, the cross section of the interior muscle of described checker can be rectangle, trapezoidal, circular, oval, triangle or polygon.
5. super capacitor collection liquid body according to claim 1 is characterized in that, the interior muscle of described checker can be arranged to cross type or radiant type.
6. super capacitor collection liquid body according to claim 1 is characterized in that, the arrangement of described lug on checker can be middle or side setting type.
7. super capacitor collection liquid body according to claim 2 is characterized in that, the thickness of the frame of described checker and interior muscle is 1.0 ~ 5.5mm.
8. super capacitor collection liquid body according to claim 2 is characterized in that, the thickness of described lead foil is 0.3 ~ 1.0mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206354613U CN201868253U (en) | 2010-11-30 | 2010-11-30 | Super capacitor current collector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206354613U CN201868253U (en) | 2010-11-30 | 2010-11-30 | Super capacitor current collector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201868253U true CN201868253U (en) | 2011-06-15 |
Family
ID=44139402
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206354613U Expired - Fee Related CN201868253U (en) | 2010-11-30 | 2010-11-30 | Super capacitor current collector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201868253U (en) |
-
2010
- 2010-11-30 CN CN2010206354613U patent/CN201868253U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20110615 Termination date: 20151130 |
|
| EXPY | Termination of patent right or utility model |