CN107154313A - A kind of method for preparing ultracapacitor based on coating transfer techniques - Google Patents
A kind of method for preparing ultracapacitor based on coating transfer techniques Download PDFInfo
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- CN107154313A CN107154313A CN201610836864.6A CN201610836864A CN107154313A CN 107154313 A CN107154313 A CN 107154313A CN 201610836864 A CN201610836864 A CN 201610836864A CN 107154313 A CN107154313 A CN 107154313A
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- 238000000034 method Methods 0.000 title claims abstract description 60
- 239000011248 coating agent Substances 0.000 title claims abstract description 44
- 238000000576 coating method Methods 0.000 title claims abstract description 44
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims abstract description 52
- 229910052759 nickel Inorganic materials 0.000 claims abstract description 26
- 239000011149 active material Substances 0.000 claims abstract description 17
- 230000004888 barrier function Effects 0.000 claims abstract description 15
- 239000011230 binding agent Substances 0.000 claims abstract description 11
- 238000002360 preparation method Methods 0.000 claims abstract description 9
- 239000003792 electrolyte Substances 0.000 claims abstract description 6
- 239000002608 ionic liquid Substances 0.000 claims abstract description 6
- 239000002033 PVDF binder Substances 0.000 claims description 22
- 229920002981 polyvinylidene fluoride Polymers 0.000 claims description 22
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 19
- 239000006260 foam Substances 0.000 claims description 12
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 claims description 10
- 239000002002 slurry Substances 0.000 claims description 10
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 claims description 8
- 238000013019 agitation Methods 0.000 claims description 8
- 239000011888 foil Substances 0.000 claims description 8
- 229910052751 metal Inorganic materials 0.000 claims description 8
- 239000002184 metal Substances 0.000 claims description 8
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 7
- SECXISVLQFMRJM-UHFFFAOYSA-N N-Methylpyrrolidone Chemical compound CN1CCCC1=O SECXISVLQFMRJM-UHFFFAOYSA-N 0.000 claims description 7
- 239000004698 Polyethylene Substances 0.000 claims description 7
- 229920000573 polyethylene Polymers 0.000 claims description 7
- -1 polyethylene terephthalate Polymers 0.000 claims description 7
- 239000005020 polyethylene terephthalate Substances 0.000 claims description 7
- 229920000139 polyethylene terephthalate Polymers 0.000 claims description 7
- 238000007789 sealing Methods 0.000 claims description 7
- 239000000243 solution Substances 0.000 claims description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 7
- 239000004642 Polyimide Substances 0.000 claims description 6
- 238000005516 engineering process Methods 0.000 claims description 6
- 229920001903 high density polyethylene Polymers 0.000 claims description 6
- 239000004700 high-density polyethylene Substances 0.000 claims description 6
- 229920001721 polyimide Polymers 0.000 claims description 6
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims description 5
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 5
- 239000003990 capacitor Substances 0.000 claims description 5
- 239000008367 deionised water Substances 0.000 claims description 5
- 229910021641 deionized water Inorganic materials 0.000 claims description 5
- 238000001035 drying Methods 0.000 claims description 5
- 229910021389 graphene Inorganic materials 0.000 claims description 5
- 229910052744 lithium Inorganic materials 0.000 claims description 5
- 239000000843 powder Substances 0.000 claims description 5
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 4
- 239000004743 Polypropylene Substances 0.000 claims description 4
- 229910052782 aluminium Inorganic materials 0.000 claims description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 4
- 239000011889 copper foil Substances 0.000 claims description 4
- 229920001155 polypropylene Polymers 0.000 claims description 4
- 229910052938 sodium sulfate Inorganic materials 0.000 claims description 4
- 235000011152 sodium sulphate Nutrition 0.000 claims description 4
- 239000000758 substrate Substances 0.000 claims description 4
- LLYXJBROWQDVMI-UHFFFAOYSA-N 2-chloro-4-nitrotoluene Chemical compound CC1=CC=C([N+]([O-])=O)C=C1Cl LLYXJBROWQDVMI-UHFFFAOYSA-N 0.000 claims description 2
- 230000015572 biosynthetic process Effects 0.000 claims description 2
- 238000007606 doctor blade method Methods 0.000 claims description 2
- 239000011259 mixed solution Substances 0.000 claims description 2
- 229920003207 poly(ethylene-2,6-naphthalate) Polymers 0.000 claims description 2
- 239000011112 polyethylene naphthalate Substances 0.000 claims description 2
- 238000004804 winding Methods 0.000 claims description 2
- 239000004705 High-molecular-weight polyethylene Substances 0.000 claims 1
- 230000001070 adhesive effect Effects 0.000 claims 1
- 239000010408 film Substances 0.000 abstract 1
- 239000011268 mixed slurry Substances 0.000 abstract 1
- 238000001291 vacuum drying Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 4
- 239000005030 aluminium foil Substances 0.000 description 3
- 238000007599 discharging Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000000643 oven drying Methods 0.000 description 3
- 238000004080 punching Methods 0.000 description 3
- 238000004146 energy storage Methods 0.000 description 2
- 238000002513 implantation Methods 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 238000010345 tape casting Methods 0.000 description 2
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 229920010741 Ultra High Molecular Weight Polyethylene (UHMWPE) Polymers 0.000 description 1
- 150000001336 alkenes Chemical class 0.000 description 1
- 239000003610 charcoal Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000002484 cyclic voltammetry Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000011031 large-scale manufacturing process Methods 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000010295 mobile communication Methods 0.000 description 1
- KYTZHLUVELPASH-UHFFFAOYSA-N naphthalene-1,2-dicarboxylic acid Chemical compound C1=CC=CC2=C(C(O)=O)C(C(=O)O)=CC=C21 KYTZHLUVELPASH-UHFFFAOYSA-N 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G11/00—Hybrid capacitors, i.e. capacitors having different positive and negative electrodes; Electric double-layer [EDL] capacitors; Processes for the manufacture thereof or of parts thereof
- H01G11/84—Processes for the manufacture of hybrid or EDL capacitors, or components thereof
- H01G11/86—Processes for the manufacture of hybrid or EDL capacitors, or components thereof specially adapted for electrodes
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Electric Double-Layer Capacitors Or The Like (AREA)
- Battery Electrode And Active Subsutance (AREA)
- Manufacturing & Machinery (AREA)
- Microelectronics & Electronic Packaging (AREA)
Abstract
The invention discloses a kind of method for preparing ultracapacitor based on coating transfer techniques；By the binding agent and active material mixed slurry of preparation, electrode plates are prepared into based on coating arts techniques, then foamed nickel current collector are transferred to by pressure transfer techniques, with reference to barrier film and electrolyte or ionic liquid, ultracapacitor are assembled into；The coating transfer techniques preparation method of the ultracapacitor rapidly and efficiently, excellent performance, reproducible, cost it is low, be with a wide range of applications.
Description
Technical field
The present invention relates to a kind of method prepared by ultracapacitor, belong to ultracapacitor manufacturing technology field.
Background technology
Ultracapacitor is a kind of a kind of novel green energy storage device between plate condenser and battery, with tradition
Capacitor compared with battery, ultracapacitor has that power density and energy density are high, had extended cycle life, operational temperature model
Enclose wide, safe and reliable, low cost and other advantages.Particularly ultracapacitor can carry out the fast charging and discharging of high current density, such as
Identical energy is stored, several hours may be needed for battery, and ultracapacitor only needs to the time of several seconds.
Thus ultracapacitor is widely used in energy storage, electric automobile, mobile communication equipment, health care, military equipment, industry life
Produce equipment etc..
In the existing technology for preparing ultracapacitor, knife coating is a kind of common methods for preparing electrode of super capacitor.
It is general in knife coating that collector, then the mixture paste that active material and binding agent are formed by a certain percentage are done using metal foil
Scratch in metal foil, preformed electrode is formed after drying.But the electrode that this method is prepared has active material distribution
The uneven, quality of active material is difficult to control to and has the shortcomings that certain contaminative, limits carrying for performance of the supercapacitor
It is high.In addition, if by metal foil directly as collector, the specific capacity of undressed metal foil meeting restricted activity material is led
Sending a telegraph pole can not be infiltrated by electrolyte well, and effective rate of utilization is low.Based on this, the present invention for the problems of above-mentioned,
A kind of method that coating transfer techniques prepare ultracapacitor is proposed, above-mentioned problem is not only solved well, and
And also adapt to serialization, large-scale production process process.
The content of the invention
The method of the present invention for preparing ultracapacitor based on coating transfer techniques, based on binding agent and active material
The slurry of preparation, electrode plates are prepared into by coating arts techniques, then cut into the pole piece to be transferred of suitable dimension, and are led to
Excess pressure is transferred in the foamed nickel current collector of identical size, is assembled into ultracapacitor.
The method of the present invention for preparing ultracapacitor based on coating transfer techniques, the binding agent is polyvinylidene fluoride
Claim after first PVDF powder is dried 4 hours to 6 hours in 80 degree to 100 degree of baking oven in alkene (PVDF), technology of preparing
Amount, is then dissolved in forming the PVDF solution that mass concentration is 2% to 5% in 1-METHYLPYRROLIDONE (NMP), under air-proof condition
Magnetic agitation 8 hours to 10 hours, makes its fully dispersed.
The method of the present invention for preparing ultracapacitor based on coating transfer techniques, the active material is activity
Charcoal, lithium titanate, graphene, CNT, specific surface area are 1500m2/ g to 3000m2Between/g, active material is put using preceding
Processing is dried in 80 degree to 100 degree of baking oven, it is to avoid binding agent PVDF, which is met, forms floccule after water, influence caking property
Energy.
It is of the present invention based on the coating transfer techniques method for preparing ultracapacitor, the slurry of the preparation is by activity
Material adds PVDF solution, and is 5 with PVDF formation mass ratioes:1 to 12:1 mixed solution, then magnetic agitation 2 under normal temperature
Hour was by 5 hours.
The method of the present invention for preparing ultracapacitor based on coating transfer techniques, the coating is using blade coating skill
Art or slot coating technique, in metal aluminum foil or copper foil or polyethylene terephthalate (PET) or poly- naphthalenedicarboxylic acid second two
On alcohol ester (PEN) or polyimides (PI) substrate, it is coated, can be formed with the speed between 1 m/min to 120 ms/min
The active layer thickness of thickness between 1 micron to 15 microns, is then placed into drying process in 80 degree to 100 degree baking ovens.
It is of the present invention based on the coating transfer techniques method for preparing ultracapacitor, the identical size bubbles nickel is
Refer to nickel foam identical with pole piece size to be transferred, and nickel foam is ultrasonic with isopropanol, ethanol, deionized water respectively before
Dried in cleaning, the drying box for being subsequently placed in 80 degree to 100 degree stand-by.
The method of the present invention for preparing ultracapacitor based on coating transfer techniques, the pressure transfer is will first to apply
The electrode plates of cloth are combined with foamed nickel current collector, then apply the pressure between 2MPa to 20MPa using hydraulic press, by activity
Material is completely transferred in foamed nickel current collector from metal aluminum foil or copper foil or PET or PEN or PI substrates.
The method of the present invention for preparing ultracapacitor based on coating transfer techniques, the assembling ultracapacitor
During add barrier film polyethylene (PE) or polypropylene (PP) or high density polyethylene (HDPE) (HDPE) or ultra-high molecular weight polyethylene
(UHMWPE) and concentration for 0.5 mol/L to 1.5 mol/Ls sodium sulphate electrolyte or BF4 ionic liquids or PF6 ionic liquids
Body, is assembled into button-shaped ultracapacitor or winding type super capacitor symmetrically or non-symmetrically.
Brief description of the drawings
【Fig. 1】It is coated with transfer techniques schematic diagram.
【Fig. 2】SEM shape appearance figure of the activated carbon of coating on aluminium foil before transfer.
【Fig. 3】The quality of activated carbon of coating and the linear relationship of wet-film thickness.
【Fig. 4】SEM shape appearance figure of the activated carbon in nickel foam after transfer.
【Fig. 5】The ultracapacitor chemical property prepared based on coating transfer techniques：A figures are charging and discharging curve, and b figures are
Cyclic voltammetry curve under different scanning speed, c figures are AC impedance curve, and d figures are the specific capacity after 5000 times circulate
Retention rate.
【Fig. 6】Charging and discharging curve of 4 ultracapacitors based on coating transfer techniques preparation under 1A/g.
Embodiment and embodiment
Implementation below and embodiment are the further instructions to present invention, rather than limitation guarantor of the invention
Protect scope.
Embodiment 1
Detailed technology of preparing such as Fig. 1 of this embodiment.
Selected active material is to use relatively broad activated carbon in this embodiment, and specific surface area is 2000m2/ g,
1 hour of processing is dried using preceding activated carbon is placed in 90 degree of baking oven；
Binder making：PVDF powder is weighed after 6 hours in 80 degree of oven dryings, is dissolved in NMP and is configured to 2%
Magnetic agitation 10 hours, make its fully dispersed after PVDF solution, sealing；
Slurry preparation：Activated carbon and PVDF mass ratio are 9:1 is mixed, after sealing bottleneck, at normal temperatures magnetic force
Stir 2 hours；
Coating technique：The slurry prepared is scratched onto aluminium foil with blade coating equipment, edge of a knife spacing is 150 microns, coating
Speed is set to 15 ms/min, and coated pole piece is placed in 80 degree of vacuum drying chambers and dried, and forms 10 microns of thick porous actives
Film, as shown in Figure 2；And during doctor blade technique, it can set up between active layer quality and the wet-film thickness of coating
Relation, active layer film quality (milligram)=0.04 × wet-film thickness (micron)+7.49, as shown in Figure 3；
Cut pole piece and barrier film：Dried pole piece is cut into the pole piece to be transferred of circle using sheet-punching machine, cut simultaneously
Barrier film, and the diameter of barrier film is bigger than pole piece, occurs short circuit to prevent the ultracapacitor of assembling；
Cut nickel foam：By nickel foam cut into pole piece identical size to be transferred, respectively with isopropanol, anhydrous second
Alcohol, deionized water are cleaned by ultrasonic 30 minutes, are subsequently placed in stand-by after being dried in 90 degree of vacuum drying chambers；
Active layer is shifted：The electrode plates cut and foamed nickel current collector are combined, with hydraulic press with 5MPa pressure
Pressure, foamed nickel current collector is completely transferred to by active material, and the active layer film morphology after transfer is substantially with shifting previous
Sample, keeps loose structure, as shown in Figure 4；
Ultracapacitor is assembled：Two panels symmetry electrode pole piece is tried one's best alignment, barrier film PE is added, implantation concentration is 1.0 to rub
You/liter sodium sulphate electrolyte, symmetrical button-shaped ultracapacitor is assembled into, using CHI660e electrochemical workstations to group
The symmetrical button-shaped ultracapacitor of dress is tested and characterized, and detailed results are as shown in figure 5, the performance detail parameters of statistics
With reference to table 1, and the performance of the supercapacitor prepared by this method is stable, favorable repeatability, 4 super electricity as shown in Figure 6
The performance parameter of container.
Embodiment 2
Selected active material is lithium titanate in this embodiment, and specific surface area is 1800m2/ g, using preceding by lithium titanate
1 hour of processing is dried in the baking oven for being placed in 90 degree；
Binder making：PVDF powder is weighed after 6 hours in 80 degree of oven dryings, is dissolved in NMP and is configured to 2%
Magnetic agitation 10 hours, make its fully dispersed after PVDF solution, sealing；
Slurry preparation：The mass ratio of lithium titanate, conductive black and PVDF is 8:1:1 is mixed, after sealing bottleneck,
2 hours of magnetic agitation under normal temperature；
Coating technique：The slurry prepared is scratched onto aluminium foil with blade coating equipment, edge of a knife spacing is 180 microns, coating
Speed is set to 10 ms/min, and coated pole piece is placed in 80 degree of vacuum drying chambers and dried, and forms 10 microns of thick active layers；
Cut pole piece and barrier film：Dried pole piece is cut into the pole piece to be transferred of circle using sheet-punching machine, cut simultaneously
Barrier film, and the diameter of barrier film is bigger than pole piece, occurs short circuit to prevent the ultracapacitor of assembling；
Cut nickel foam：By nickel foam cut into pole piece identical size to be transferred, respectively with isopropanol, anhydrous second
Alcohol, deionized water are cleaned by ultrasonic 30 minutes, are subsequently placed in stand-by after being dried in 90 degree of vacuum drying chambers；
Active layer is shifted：The electrode plates cut and foamed nickel current collector are combined, with hydraulic press with 5MPa pressure
Pressure, active material is completely transferred in foamed nickel current collector；
Ultracapacitor is assembled：Two panels symmetry electrode pole piece is tried one's best alignment, barrier film PE is added, implantation concentration is 1.0 to rub
You/liter sodium sulphate electrolyte, symmetrical button-shaped ultracapacitor is assembled into, using CHI660e electrochemical workstations to group
The symmetrical button-shaped ultracapacitor of dress is tested and characterized, and under 1A/g current density, obtains 56F/g specific volume
Amount.
The ultracapacitor detail parameters that table 1 is prepared based on coating transfer techniques
Embodiment 3
Selected active material is graphene in this embodiment, and specific surface area is 2600m2/ g, using preceding by graphene
1 hour of processing is dried in the baking oven for being placed in 90 degree；
Binder making：PVDF powder is weighed after 6 hours in 80 degree of oven dryings, is dissolved in NMP and is configured to 2%
Magnetic agitation 10 hours, make its fully dispersed after PVDF solution, sealing；
Slurry preparation：Graphene and PVDF mass ratio are 8:1 is mixed, after sealing bottleneck, at normal temperatures magnetic force
Stir 2 hours；
Coating technique：The slurry prepared is applied in PET base with slot coated equipment, spacer thickness is 20 micro-
Rice, coating speed is set to 15 ms/min, and coated pole piece is placed in 80 degree of vacuum drying chambers and dried, and forms 12 microns thick
Active layer；
Cut pole piece and barrier film：Dried pole piece is cut into the pole piece to be transferred of circle using sheet-punching machine, cut simultaneously
Barrier film, and the diameter of barrier film is bigger than pole piece, occurs short circuit to prevent the ultracapacitor of assembling；
Cut nickel foam：By nickel foam cut into pole piece identical size to be transferred, respectively with isopropanol, anhydrous second
Alcohol, deionized water are cleaned by ultrasonic 30 minutes, are subsequently placed in stand-by after being dried in 90 degree of vacuum drying chambers；
Active layer is shifted：The electrode plates cut and foamed nickel current collector are combined, with hydraulic press with 10MPa pressure
Pressure, active material is completely transferred in foamed nickel current collector；
Ultracapacitor is assembled：Two panels symmetry electrode pole piece is tried one's best alignment, barrier film PE is added, BF4 ionic liquids are injected,
Symmetrical button-shaped ultracapacitor is assembled into, using CHI660e electrochemical workstations to the symmetrical button-shaped super of assembling
Capacitor is tested and characterized, under 1A/g current density, obtains 230F/g specific capacity.
Claims (8)
1. a kind of method for preparing ultracapacitor based on coating transfer techniques, its feature is as follows, based on binding agent and active matter
The slurry that matter is prepared, is prepared into electrode plates by coating arts techniques, then cuts into the pole piece to be transferred of suitable dimension, and
In the foamed nickel current collector that identical size is transferred to by pressure, ultracapacitor is then assembled into.
2. a kind of method for preparing ultracapacitor based on coating transfer techniques as claimed in claim 1, it is characterised in that described
Binding agent is first dried PVDF powder 6 hours in 80 degree to 100 degree of baking oven in Kynoar (PVDF), technology of preparing
After weigh, be then dissolved in forming the PVDF solution that mass concentration is 2% to 5% in 1-METHYLPYRROLIDONE (NMP), in sealing strip
Magnetic agitation 8 hours to 10 hours, make its fully dispersed under part.
3. a kind of method for preparing ultracapacitor based on coating transfer techniques as claimed in claim 1, it is characterised in that described
Active material is activated carbon, lithium titanate, graphene, CNT, and specific surface area is 1500m2/ g to 3000m2Between/g, use
Processing is dried in preceding active material is placed in 80 degree to 100 degree of baking oven, it is to avoid binding agent PVDF forms cotton-shaped after meeting water
Thing, influences adhesive property.
4. a kind of method for preparing ultracapacitor based on coating transfer techniques as claimed in claim 1, it is characterised in that described
Active material is added PVDF solution by the slurry of preparation, and is 5 with PVDF formation mass ratioes:1 to 12:1 mixed solution, then
Magnetic agitation 2 hours to 5 hours under normal temperature.
5. a kind of method for preparing ultracapacitor based on coating transfer techniques as claimed in claim 1, it is characterised in that described
Coating is to use doctor blade technique or slot coating technique, in metal aluminum foil or copper foil or polyethylene terephthalate (PET)
Or in PEN (PEN) or polyimides (PI) substrate, with the speed between 1 m/min to 120 ms/min
Degree is coated, and can form the active layer thickness of thickness between 1 micron to 15 microns, is then placed into 80 degree to 100 degree baking ovens
Drying process.
6. a kind of method for preparing ultracapacitor based on coating transfer techniques as claimed in claim 1, it is characterised in that described
Identical size bubbles nickel refers to that nickel foam is identical with pole piece size to be transferred, and nickel foam using it is preceding use respectively isopropanol,
Ethanol, deionized water are cleaned by ultrasonic, and are dried in the drying box for being subsequently placed in 80 degree to 100 degree stand-by.
7. a kind of method for preparing ultracapacitor based on coating transfer techniques as claimed in claim 1, it is characterised in that described
Pressure transfer is first to be combined the electrode plates of coating and foamed nickel current collector, then applies 2MPa to 20MPa using hydraulic press
Between pressure, active material is completely transferred to nickel foam afflux from metal aluminum foil or copper foil or PET or PEN or PI substrates
On body.
8. a kind of method for preparing ultracapacitor based on coating transfer techniques as claimed in claim 1, it is characterised in that described
Barrier film polyethylene (PE) or polypropylene (PP) or high density polyethylene (HDPE) (HDPE) or super are added during assembling ultracapacitor
High molecular weight polyethylene (UHMWPE) and sodium sulphate electrolyte or BF that concentration is 0.5 mol/L to 1.5 mol/Ls4Ionic liquid
Body or PF6Ionic liquid, is assembled into button-shaped ultracapacitor or winding type super capacitor symmetrically or non-symmetrically.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114103348A (en) * | 2021-11-22 | 2022-03-01 | 四川大学 | Multilayer composite BOPE capacitor film and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114103348A (en) * | 2021-11-22 | 2022-03-01 | 四川大学 | Multilayer composite BOPE capacitor film and preparation method thereof |
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| CN107154313B (en) | 2018-11-06 |
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