CN103295801B - The manufacture method of ultracapacitor - Google Patents
The manufacture method of ultracapacitor Download PDFInfo
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- CN103295801B CN103295801B CN201310157526.6A CN201310157526A CN103295801B CN 103295801 B CN103295801 B CN 103295801B CN 201310157526 A CN201310157526 A CN 201310157526A CN 103295801 B CN103295801 B CN 103295801B
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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
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- Y02E60/13—Energy storage using capacitors
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Abstract
The invention discloses a kind of manufacture method of ultracapacitor, comprise the steps: prepared by electrode slurry: deionized water and polyurethane are put into planetary mixer and stirs, obtain the binding agent of getting along swimmingly with each other; Binding agent is put into kneader, in kneader, drops into acetylene black, stir in kneader; In kneader, drop into active carbon powder, stir 20 to 40 minutes, obtain in doughy electrode slurry preform; Electrode slurry preform is put into the agitator tank of planetary mixer, in agitator tank, add deionized water; Agitator tank vacuumizes as 300pa to 200pa, stirs 20 to 40 minutes, obtains electrode slurry.The ultracapacitor that the present invention has manufacture has high reliability; High power density; High-energy-density; The feature that the production efficiency of production process is high, energy consumption is low.
Description
Technical field
The present invention relates to capacitor fabrication technical field, especially relate to the manufacture method of ultracapacitor of a kind of high reliability, high power density, high-energy-density.
Background technology
The electrode slurry of common ultracapacitor is mixed and made into binding agent with one or more of polytetrafluoroethylene (PTFE), carboxymethyl cellulose (CMC) and butadiene-styrene rubber (SBR), after binding agent and a certain proportion of deionized water carry out dispersion and emulsion, then obtain the slurry of certain solid content and viscosity with acetylene black, the abundant mix and blend of active carbon powder.
No matter adopt any binding agent, its exist subject matter be binding agent viscosity can with place time and temperature change and change rapidly, cause electrode slurry coating thickness be difficult to grasp.
In order to make electrode slurry even spread, usually need devote substantial resources to preserve for the constant temperature and humidity of electrode slurry, but effect is often not bery desirable, thus causes the quality of ultracapacitor product to be difficult to be guaranteed.
Chinese patent mandate publication number: CN102543481A, authorize publication date on July 4th, 2012, disclose a kind of manufacture method of ultracapacitor, comprise the steps: the process of metal collector surface roughening, by active material, electric conducting material, composite caking agent mixes, be pressed into thickness at the pole piece of 30-100 μm, pole piece is bonded in collector electrode surface, form band electrode, be cut into two same size electrodes, after two electrode riveted joint lead-in wires, add 10-50 μm thick in pole film, be wound into fuse, in 100-150 DEG C of vacuumize 8-72 hour, then be immersed in organic electrolyte, in 50 DEG C of additional 2.7V direct voltage energising 10h, finally be packaged in circular aluminum hull, obtain ultracapacitor product.There is compound binding agent and easily solidify in this invention, is difficult to the deficiency ensureing ultracapacitor product quality.
Summary of the invention
The present invention is that the viscosity in order to overcome the binding agent used in prior art changed with the time of placement and the change of temperature, cause electrode slurry coating thickness inconsistent, and cause the deficiency of ultracapacitor poor product quality further, provide the manufacture method of ultracapacitor of a kind of high reliability, high power density, high-energy-density.
To achieve these goals, the present invention is by the following technical solutions:
(1-1) electrode slurry preparation: be the ratio of 18-22: 1 according to deionized water and polyurethane mass ratio, deionized water and polyurethane put into mixer and stirs 30 to 50 minutes, the binding agent that acquisition is got along swimmingly with each other;
Binding agent is put into kneader; According to the ratio of the mass ratio 1: 1 of the polyurethane in acetylene black and binding agent, in kneader, drop into acetylene black, and stir 20 to 40 minutes in kneader;
According to the ratio of mass ratio 12-16: 1 of the polyurethane in active carbon powder and binding agent, in kneader, drop into active carbon powder, stir 20 to 40 minutes, obtain in doughy electrode slurry preform;
Electrode slurry preform is put into the agitator tank of mixer, be the ratio of 60-78: 1 according to the mass ratio of the polyurethane in deionized water and binding agent, in agitator tank, again add deionized water; Agitator tank vacuumizes as 200pa to 300pa, stirs 20 to 40 minutes; Obtain electrode slurry; Now, the mass ratio of the deionized water in electrode slurry and polyurethane, acetylene black, active carbon powder is 78-100: 1: 1: 12-16;
Electrode slurry preparation method of the present invention is through a large amount of tests, the water base thermoset polyurethane binding agent of the one obtained, this binding agent has nontoxic, harmless, without the feature of flash-point, after solidification, not only adhesion strength is high, also have water-fast, oil resistant, acid and alkali-resistance and certain flexible feature, topmost feature is not easy solidification at normal temperatures, need the temperature just rapid solidification of more than 150 DEG C, so the susceptibility of the viscosity temperature of the electrode slurry be mixed with it is not high, very strong to the adaptive capacity of process environments, the viscosity of technical process is facilitated to control, save environmental control equipment resource.
Electrode slurry can ensure coating thickness, thus ensure that the quality of the ultracapacitor product made.
(1-2) be coated with single-side electrode slurry: be arranged on by aluminum foil coil on the unreeling shaft of coating machine, the free end of pull-out aluminium foil makes aluminium foil through the gap the applicator roll of coating machine and scraper; The free end of aluminium foil passes baking oven and is wound on the Scroll of coating machine;
Gap between adjustment scraper and applicator roll, is poured between scraper and two striker plates by electrode slurry, Scroll rotates and drives aluminium foil at the uniform velocity by the gap between applicator roll and scraper, and electrode slurry is coated on a surface of aluminium foil;
Electrode slurry on the aluminium foil of baking oven is dried, and aluminium foil becomes the cated pole piece of one side, and pole piece coiling forms pole piece roll on Scroll;
The slurry prepared due to the present invention is placed viscosity in 24 hours and can not be changed a lot under the environment of 10-30 DEG C, so no matter be place or all do not need the special temperature that controls environment in coating process, can make the thickness uniformity being coated on the electrode slurry on aluminium foil, the capacity of the ultracapacitor product of production and parameter are all than desirable with other binding agent.
(1-3) another side electrode slurry is coated with: taken off from Scroll by pole piece roll, pole piece roll is installed on unreeling shaft, repeat coating and the drying course of step (1-2), the another side of pole piece is coated electrode slurry, and the pole piece be wound on Scroll becomes electrode roll;
(1-4) electric core winding: two electrode roll and two membrane coil are installed on the winder, the free end of the pull-out pole piece of two electrode roll and the barrier film of two membrane coil, pole piece and barrier film are around the arrangement of plug intersecting, and the water conservancy diversion paper tinsel on the pole piece of two electrode roll stretches out along the two ends of plug respectively and stretches out outside diaphragm edge; Start up-coiler, plug, pole piece and membrane winding form super capacitor electric core;
Barrier film is used for positive and negative electrode to separate and has the effect of adion, adopts papery or plastic material; Edge on pole piece does not have the part of coating electrode slurry to be called water conservancy diversion paper tinsel, and the water conservancy diversion paper tinsel on the pole piece of two electrode roll is respectively used to the positive pole and the negative pole that form battery core.
(1-5) battery core shaping and welding: by the water conservancy diversion paper tinsel dense extrusion at battery core two ends, positive terminal and negative terminal Laser Welding are welded on battery core two ends;
(1-6) assemble: the battery core being welded with positive and negative electrode terminal is put into housing, the first boss of negative terminal passes the through hole of housing and stretches out outside housing, forms the negative pole of ultracapacitor; Second boss of positive terminal, through lid, forms the positive pole of ultracapacitor; In the housing of positive terminal, put into an insulated ring, the outer peripheral face book joint setting machine of the housing near housing positive terminal is pressed into the scrobicular ring caved inward; Housing is placed on housing trimmer, the medial surface of scrobicular ring places insulated ring, insulated ring buckles lid, place rubber seal in lid upper periphery position, then use sealing machine, housing is inwardly carried out the sealing of flange compressing rubber sealing ring; Again the seam between housing with negative terminal, seam Laser Welding between lid with positive terminal are welded, form ultracapacitor preform;
(1-7) dewater: ultracapacitor preform to be put in drying chamber and drying chamber is sealed, drying chamber be heated to the temperature of more than 100 DEG C and be incubated 30 to 40 minutes, vacuumizing to drying chamber, making the pressure reaching below 100Pa in drying chamber;
Vacuumize rear insulation and pressurize more than 4 hours; Drying chamber is cooled to 20 degree to 35 degree, nitrogen injection in tank, make the pressure in tank equal with tank external pressure, drying chamber is sealed;
(1-8) electrolyte is noted: note electrolyte: transported to by drying chamber in drying device, take out ultracapacitor preform, ultracapacitor preform is evacuated to 280Pa to 320Pa, and be the tetrafluoro boric acid ammonia salt acetonitrile solvent electrolyte of 1 mol/L from the concentration that the liquid injection port of ultracapacitor preform injects 100g-300g, liquid injection port is used plug jam-pack;
(1-9) sealing process: ultracapacitor preform is transported drying device, and by Laser Welding by liquid injection port seal welding, ultracapacitor completes.
The present invention is based on double electric layer electrochemical ultracapacitor the most ripe in the market, through the improvement of production technology and the improvement of product structure, the energy density of the ultracapacitor produced reaches 7.1Wh/kg, and on domestic market, the energy density of the ultracapacitor of the Maxwell company that current possession share is the highest is 6.0Wh/kg; Power density reaches 13.15kW/kg, and the power density of the ultracapacitor of Maxwell company is 12kW/kg; Raw material of the present invention are the active carbon powder of relative low price, water-based polyurethane binding agent, acetylene black, corrosive aluminum foil, leading-out terminal, housing, lid, aluminium lid, insulated ring and heatproof reach-60-230 DEG C, the rubber seal of high ageing resistance.
The present invention has and shortens the manufacturing cycle, saved cost, and produced product has the feature of higher reliability and desirable technical parameter.
As preferably, the high frequency heating coil that the baking oven described in step (1-2) adopts several axially spaced-aparts to arrange is as thermal source, and the electrode slurry on aluminium foil is comprised the steps: by the process of drying
Pole piece through the hole in the middle of each high frequency heating coil, passes into moving air in baking oven successively, and under the effect of high frequency magnetic field, aluminium foil starts heating, and aluminium foil heating temp is controlled between 150 to 200 DEG C.
The moisture of the slurry near aluminium foil under the effect of heat evaporates rapidly, simultaneously the adhesive cures of internal layer, and As time goes on, moisture is from inside to outside evaporated, and binding agent also from inside to outside solidifies.
Common baking oven is the flowing by hot-air, takes away the moisture of electrode slurry, thus makes adhesive cures, and electrode slurry is dry gradually from the surface to the internal.But, the evaporation of motor slurry internal layer moisture can be hindered owing to being positioned at the outer field cured layer of electrode slurry, cause the drying of electrode slurry internal layer not thorough; Further, if outer dry and solidification is too fast, the easy embrittlement peeling of motor slurry dry linting.
And common baking oven is that most of heat is all taken away by air draft by hot blast to whole baking oven heating, and some scatters and disappears through baking oven skin, and energy consumption is very high.
Because binding agent of the present invention is thermosetting, the baking oven designed by the present invention is also distinguished, and the dry order of electrode slurry of the present invention is from inside to outside dry, and drying is more thorough, and motor slurry is not easy embrittlement peeling and dry linting.
The high-frequency heating mode that the present invention takes makes pole piece itself generate heat, and waste heat is taken away by water vapour evaporation, and therefore, the present invention has the low advantage of energy consumption.
As preferably, the scraper in described step (1-2) and the gap between applicator roll are 0.2 millimeter to 0.3 millimeter.
As preferably, in the agitator tank of the mixer in described step (1-1), be provided with high speed dispersion dish.
As preferably, the heating current in described step (1-2) during baking oven heating is 20A to 30A.
As preferably, the scrobicular ring in described step (1-6) is positioned on the outer peripheral face of the housing of distance housing positive terminal 10 to 15 millimeters.
As preferably, drying device is drying shed or dry glove box.
Therefore, the present invention has following beneficial effect: the ultracapacitor that (1) manufactures has high reliability; (2) high power density; (4) high-energy-density; (5) production efficiency of production process is high, energy consumption is low.
Accompanying drawing explanation
Fig. 1 is a kind of flow chart of embodiments of the invention;
Fig. 2 is a kind of structural representation of battery core of the present invention when being wound;
Fig. 3 is a kind of structural representation of ultracapacitor of the present invention;
Fig. 4 is the enlarged drawing at A place in Fig. 3;
Fig. 5 is the structural representation of a kind of decomposition of ultracapacitor of the present invention;
Fig. 6 is a kind of structural representation of lid of the present invention;
Fig. 7 is a kind of structural representation of positive terminal of the present invention;
Fig. 8 is a kind of structural representation of negative terminal of the present invention.
In figure: pole piece 1, barrier film 2, battery core 3, water conservancy diversion paper tinsel 4, housing 21, plug 22, battery core 23, positive terminal 24, negative terminal 5, first boss 6, through hole 7, lid 8, sealing ring 9, liquid injection hole 10, second boss 11, flange 12, scrobicular ring 13, interior insulated ring 14, external insulation circle 15, rubber stopper 16, aluminium lid 17, delivery hole 18, annular boss 19, explosion-proof groove 20.
Embodiment
Below in conjunction with the drawings and specific embodiments, the present invention will be further described.
Embodiment is as shown in Figure 1 a kind of manufacture method of ultracapacitor, comprises the steps:
Step 100, prepared by electrode slurry:
Be the ratio of 20: 1 according to deionized water and polyurethane mass ratio, deionized water and polyurethane put into mixer and stirs 35 minutes, obtain the binding agent of getting along swimmingly with each other;
According to the ratio of the mass ratio 15: 1 of the polyurethane in active carbon powder and binding agent, in kneader, drop into active carbon powder, stir 30 minutes, obtain in doughy electrode slurry preform;
Electrode slurry preform is put into the agitator tank of mixer, be the ratio of 70: 1 according to the mass ratio of the polyurethane in deionized water and binding agent, in agitator tank, again add deionized water; Agitator tank vacuumizes as 200pa to 300pa, stirs 30 minutes, obtains electrode slurry;
Step 200, is arranged on aluminum foil coil on the unreeling shaft of coating machine, and the free end of pull-out aluminium foil makes aluminium foil through the gap the applicator roll of coating machine and scraper; The free end of aluminium foil passes baking oven and is wound on the Scroll of coating machine;
Gap between adjustment scraper and applicator roll, the gap between applicator roll and scraper is made to be 0.25 millimeter, electrode slurry is poured between scraper and two striker plates, Scroll rotates and drives aluminium foil with the speed of 12 ms/min at the uniform velocity by the gap between applicator roll and scraper, and electrode slurry is coated on a surface of aluminium foil;
Electrode slurry on the aluminium foil of baking oven is dried, and aluminium foil becomes the cated pole piece of one side, and pole piece coiling forms pole piece roll on Scroll;
Baking oven adopts the high frequency heating coil of 15 axially spaced-apart arrangements as thermal source, and heating current during baking oven heating is 25A, and the electrode slurry on aluminium foil is comprised the steps: by the process of drying
Pole piece through the hole in the middle of 15 high frequency heating coils, passes into moving air in baking oven successively, and under the effect of high frequency magnetic field, aluminium foil starts heating, and aluminium foil heating temp is controlled at 180 DEG C.
Step 300, coating another side electrode slurry: taken off from Scroll by pole piece roll, be installed to by pole piece roll on unreeling shaft, repeats coating and the drying course of step 200, the another side of pole piece is coated electrode slurry, and the pole piece be wound on Scroll becomes electrode roll;
Step 400, electric core winding: two electrode roll and two membrane coil are installed on the winder, the free end of the pull-out pole piece of two electrode roll and the barrier film of two membrane coil, as shown in Figure 2, pole piece 1 and barrier film 2 are around the arrangement of plug intersecting, and the water conservancy diversion paper tinsel 4 on the pole piece of two electrode roll stretches out along the two ends of plug respectively and stretches out outside diaphragm edge; Start up-coiler, plug, pole piece and membrane winding form super capacitor electric core 3;
Step 500, battery core shaping and welding: by the water conservancy diversion paper tinsel dense extrusion at battery core two ends, positive terminal and negative terminal Laser Welding are welded on battery core two ends;
Step 600, assembling: the battery core being welded with positive and negative electrode terminal is put into housing, the first boss of negative terminal passes the through hole of housing and stretches out outside housing, forms the negative pole of ultracapacitor; Second boss of positive terminal, through lid, forms the positive pole of ultracapacitor; In the housing of positive terminal, put into an insulated ring, the outer peripheral face book joint setting machine of the housing near housing positive terminal is pressed into the scrobicular ring caved inward; Housing is placed on housing trimmer, the medial surface of scrobicular ring places insulated ring, insulated ring buckles lid, place rubber seal in lid upper periphery position, then use sealing machine, housing is inwardly carried out the sealing of flange compressing rubber sealing ring; Again the seam between housing with negative terminal, seam Laser Welding between lid with positive terminal are welded, form ultracapacitor preform;
Step 700, dewaters: to be put in by ultracapacitor preform in drying chamber and to be sealed by drying chamber, drying chamber be heated to the temperature of more than 100 DEG C and be incubated 40 minutes, vacuumizing to drying chamber, making the pressure reaching below 100Pa in drying chamber;
Vacuumize rear insulation and pressurize 4.5 hours; Drying chamber is cooled to 20 degree, nitrogen injection in tank, make the pressure in tank equal with tank external pressure, drying chamber is sealed;
Step 800, note electrolyte: drying chamber is transported in drying shed, take out ultracapacitor preform, ultracapacitor preform is evacuated to 300Pa, and be the tetrafluoro boric acid ammonia salt acetonitrile solvent electrolyte of 1 mol/L from the concentration that the liquid injection port of ultracapacitor preform injects 200g, liquid injection port is used plug jam-pack;
Step 900, sealing process: ultracapacitor preform is transported drying shed, and by Laser Welding by liquid injection port seal welding, cylindrical supercapacitor completes.
Ultracapacitor made by the present invention is as shown in Fig. 3, Fig. 5, and ultracapacitor comprises the cylindrical shell 21 of one end open, the plug 22 being positioned at housing, the battery core 23 be wrapped on plug; Battery core two ends are fixedly connected with negative terminal 5 with positive terminal 24 respectively, and be provided with the first boss 6 in the middle part of negative terminal outer surface, housing bottom is provided with through hole 7, and the first boss exposes outside through hole, and through-hole wall is fixedly connected with negative terminal; Insulated ring, lid 8 and sealing ring 9 is provided with in housing outside positive terminal, insulated ring, lid and sealing ring are successively away from positive terminal, lid is provided with the liquid injection hole 10 for injecting electrolyte, electrolyte is marked with in housing inside battery core and lid, housing by insulated ring and positive terminal and lid isolated, the second boss 11 be located in the middle part of positive terminal outer surface exposes outside lid, and the second boss is fixedly connected with lid; Sealing ring is between the flange 12 and the outward flange of cover top surface of housing.Housing outer peripheral face is provided with explosion-proof groove 20, and the thickness of shell of explosion-proof groove is 0.3 millimeter.
As shown in Figure 4, the housing outer peripheral face near shell nozzle end is provided with the scrobicular ring 13 caved in enclosure interior; Insulated ring comprises interior insulated ring 14 and external insulation circle 15, and interior insulated ring contacts with scrobicular ring medial surface, and external insulation circle contacts with scrobicular ring lateral surface.
The cross section of interior insulated ring is the L shape bent inwards, and the cross section of external insulation circle is the L shape of outwards bending.Liquid injection hole comprises the external holes and internal holes that are connected, and the diameter of external holes is greater than the diameter of internal holes, and liquid injection hole is provided with rubber stopper 16 and aluminium lid 17 from the inside to the outside successively, and aluminium lid is fixedly connected with lid.
As shown in Figure 8, negative terminal comprises circular metal plate and to the vertically extending extension edge in metallic plate inner surface side, the circular in cross-section of the first boss, metallic plate is provided with 4 and distributes radially and the delivery hole 18 be interconnected.
As shown in Figure 7, positive terminal comprises circular metal plate and to the vertically extending extension edge in metallic plate inner surface side, second boss comprises the cylinder that Open Side Down, the upper annulus be connected with cylinder lower end and the lower annulus be connected with upper annulus lower end, the cross section of upper and lower annulus is all L-shaped, and the external diameter of cylinder, upper annulus and lower annulus increases successively; Metallic plate is provided with 4 and distributes radially and the delivery hole be interconnected.
As shown in Figure 6, lid comprises circular metal plate and to the vertically extending extension edge in metal sheet outer surface side, be provided with annular boss 19 in the middle part of metallic plate, liquid injection hole is positioned on annular boss.
Should be understood that the present embodiment is only not used in for illustration of the present invention to limit the scope of the invention.In addition should be understood that those skilled in the art can make various changes or modifications the present invention, and these equivalent form of values fall within the application's appended claims limited range equally after the content of having read the present invention's instruction.
Claims (7)
1. a manufacture method for ultracapacitor, is characterized in that, comprises the steps:
(1-1) electrode slurry preparation: be the ratio of 18-22: 1 according to deionized water and polyurethane mass ratio, deionized water and polyurethane put into mixer and stirs 30 to 50 minutes, the binding agent that acquisition is got along swimmingly with each other;
Binding agent is put into kneader; According to the ratio of the mass ratio 1: 1 of the polyurethane in acetylene black and binding agent, in kneader, drop into acetylene black, and stir 20 to 40 minutes in kneader;
According to the ratio of mass ratio 12-16: 1 of the polyurethane in active carbon powder and binding agent, in kneader, drop into active carbon powder, stir 20 to 40 minutes, obtain in doughy electrode slurry preform;
Electrode slurry preform is put into the agitator tank of mixer, be the ratio of 60-78: 1 according to the mass ratio of the polyurethane in deionized water and binding agent, in agitator tank, again add deionized water; Agitator tank vacuumizes as 200pa to 300pa, stirs 20 to 40 minutes, obtains electrode slurry;
(1-2) be coated with single-side electrode slurry: be arranged on by aluminum foil coil on the unreeling shaft of coating machine, the free end of pull-out aluminium foil makes aluminium foil through the gap the applicator roll of coating machine and scraper; The free end of aluminium foil passes baking oven and is wound on the Scroll of coating machine;
Gap between adjustment scraper and applicator roll, is poured between scraper and two striker plates by electrode slurry, Scroll rotates and drives aluminium foil at the uniform velocity by the gap between applicator roll and scraper, and electrode slurry is coated on a surface of aluminium foil;
Electrode slurry on the aluminium foil of baking oven is dried, and aluminium foil becomes the cated pole piece of one side, and pole piece coiling forms pole piece roll on Scroll;
(1-3) another side electrode slurry is coated with: taken off from Scroll by pole piece roll, pole piece roll is installed on unreeling shaft, repeat coating and the drying course of step (1-2), the another side of pole piece is coated electrode slurry, and the pole piece be wound on Scroll becomes electrode roll;
(1-4) electric core winding: two electrode roll and two membrane coil are installed on the winder, the free end of the pull-out pole piece of two electrode roll and the barrier film of two membrane coil, pole piece (1) and barrier film (2) are around the arrangement of plug intersecting, and the water conservancy diversion paper tinsel (4) on the pole piece of two electrode roll stretches out along the two ends of plug respectively and stretches out outside diaphragm edge; Start up-coiler, plug, pole piece and membrane winding form super capacitor electric core (3);
(1-5) battery core shaping and welding: by the water conservancy diversion paper tinsel dense extrusion at battery core two ends, positive terminal and negative terminal Laser Welding are welded on battery core two ends;
(1-6) assemble: the battery core being welded with positive and negative electrode terminal is put into housing, the first boss of negative terminal passes the through hole of housing and stretches out outside housing, forms the negative pole of ultracapacitor; Second boss of positive terminal, through lid, forms the positive pole of ultracapacitor; In the housing of positive terminal, put into an insulated ring, the outer peripheral face book joint setting machine of the housing near housing positive terminal is pressed into the scrobicular ring caved inward; Housing is placed on housing trimmer, the medial surface of scrobicular ring places insulated ring, insulated ring buckles lid, place rubber seal in lid upper periphery position, then use sealing machine, housing is inwardly carried out the sealing of flange compressing rubber sealing ring; Again the seam between housing with negative terminal, seam Laser Welding between lid with positive terminal are welded, form ultracapacitor preform;
(1-7) dewater: ultracapacitor preform to be put in drying chamber and drying chamber is sealed, drying chamber be heated to the temperature of more than 100 DEG C and be incubated 30 to 40 minutes, vacuumizing to drying chamber, making the pressure reaching below 100Pa in drying chamber;
Vacuumize rear insulation and pressurize more than 4 hours; Drying chamber is cooled to 20 degree to 35 degree, nitrogen injection in tank, make the pressure in tank equal with tank external pressure, drying chamber is sealed;
(1-8) electrolyte is noted: transported to by drying chamber in drying device, take out ultracapacitor preform, ultracapacitor preform is evacuated to 280Pa to 320Pa, and be the tetrafluoro boric acid ammonia salt acetonitrile solvent electrolyte of 1 mol/L from the concentration that the liquid injection port of ultracapacitor preform injects 100g-300g, liquid injection port is used plug jam-pack;
(1-9) sealing process: ultracapacitor preform is transported drying device, and by Laser Welding by liquid injection port seal welding, ultracapacitor completes.
2. the manufacture method of ultracapacitor according to claim 1, it is characterized in that, the high frequency heating coil that baking oven described in step (1-2) adopts several axially spaced-aparts to arrange is as thermal source, and the electrode slurry on aluminium foil is comprised the steps: by the process of drying
Pole piece through the hole in the middle of each high frequency heating coil, passes into moving air in baking oven successively, and under the effect of high frequency magnetic field, aluminium foil starts heating, and aluminium foil heating temp is controlled between 150 to 200 DEG C.
3. the manufacture method of ultracapacitor according to claim 1, is characterized in that, the scraper in described step (1-2) and the gap between applicator roll are 0.2 millimeter to 0.3 millimeter.
4. the manufacture method of ultracapacitor according to claim 1, is characterized in that, is provided with high speed dispersion dish in the agitator tank of the mixer in described step (1-1).
5. the manufacture method of ultracapacitor according to claim 1, is characterized in that, the heating current in described step (1-2) during baking oven heating is 20A to 30A.
6. the manufacture method of ultracapacitor according to claim 1, is characterized in that, the scrobicular ring in described step (1-6) is positioned on the outer peripheral face of the housing of distance housing positive terminal 10 to 15 millimeters.
7. the manufacture method of the ultracapacitor according to claim 1 or 2 or 3 or 4 or 5 or 6, it is characterized in that, drying device is drying shed or dry glove box.
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| CN104002049B (en) * | 2013-12-19 | 2016-01-13 | 宁波南车新能源科技有限公司 | Ultracapacitor drainage terminal battery core welder and welding method |
| CN103786033B (en) * | 2014-02-18 | 2016-05-11 | 南通新三能电子有限公司 | A kind of electrolytic capacitor laser soldering device and method of work thereof |
| CN104882296B (en) * | 2015-06-12 | 2018-04-24 | 肇庆绿宝石电子科技股份有限公司 | A kind of manufacture method of ultracapacitor |
| CN110224121B (en) * | 2019-06-10 | 2022-06-24 | 合肥众禾动力新能源科技有限公司 | Preparation method of positive electrode slurry |
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| CN202159583U (en) * | 2011-06-10 | 2012-03-07 | 集盛星泰(北京)科技有限公司 | Structure of double-sealing super capacitor |
| CN102543481A (en) * | 2011-12-29 | 2012-07-04 | 锦州凯美能源有限公司 | Manufacture method of super capacitor |
| CN102832052A (en) * | 2012-08-17 | 2012-12-19 | 常州华威电子有限公司 | Production line device and manufacture method of wound type supercapacitor |
| CN202816683U (en) * | 2012-09-14 | 2013-03-20 | 宁波南车新能源科技有限公司 | Seal structure of cylindrical super capacitor |
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| KR101159652B1 (en) * | 2011-03-28 | 2012-06-26 | 엘에스엠트론 주식회사 | Ultra-capacitor improved in electrolyte impregnation property and internal terminal structure for the same |
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Patent Citations (6)
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|---|---|---|---|---|
| CN101714467A (en) * | 2009-11-18 | 2010-05-26 | 凯迈嘉华（洛阳）新能源有限公司 | Electrochemical super capacitor and manufacturing method thereof |
| CN102254699A (en) * | 2011-05-13 | 2011-11-23 | 湖南耐普恩电能科技有限公司 | Pretreatment technology for super capacitor electrode material and manufacturing method of electrode |
| CN202159583U (en) * | 2011-06-10 | 2012-03-07 | 集盛星泰(北京)科技有限公司 | Structure of double-sealing super capacitor |
| CN102543481A (en) * | 2011-12-29 | 2012-07-04 | 锦州凯美能源有限公司 | Manufacture method of super capacitor |
| CN102832052A (en) * | 2012-08-17 | 2012-12-19 | 常州华威电子有限公司 | Production line device and manufacture method of wound type supercapacitor |
| CN202816683U (en) * | 2012-09-14 | 2013-03-20 | 宁波南车新能源科技有限公司 | Seal structure of cylindrical super capacitor |
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