CN102832052A - Production line device and manufacture method of wound type supercapacitor - Google Patents
Production line device and manufacture method of wound type supercapacitor Download PDFInfo
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- CN102832052A CN102832052A CN2012102936784A CN201210293678A CN102832052A CN 102832052 A CN102832052 A CN 102832052A CN 2012102936784 A CN2012102936784 A CN 2012102936784A CN 201210293678 A CN201210293678 A CN 201210293678A CN 102832052 A CN102832052 A CN 102832052A
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- 238000000034 method Methods 0.000 title claims abstract description 16
- 238000000576 coating method Methods 0.000 claims abstract description 58
- 239000011248 coating agent Substances 0.000 claims abstract description 57
- 239000003990 capacitor Substances 0.000 claims abstract description 41
- 238000004804 winding Methods 0.000 claims abstract description 30
- 239000011149 active material Substances 0.000 claims abstract description 29
- 239000012528 membrane Substances 0.000 claims abstract description 23
- 239000011230 binding agent Substances 0.000 claims abstract description 15
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 12
- 239000006258 conductive agent Substances 0.000 claims abstract description 8
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 6
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- 238000012545 processing Methods 0.000 claims description 6
- 229910052782 aluminium Inorganic materials 0.000 claims description 5
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 5
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- 239000002033 PVDF binder Substances 0.000 claims description 3
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- MTAZNLWOLGHBHU-UHFFFAOYSA-N butadiene-styrene rubber Chemical group C=CC=C.C=CC1=CC=CC=C1 MTAZNLWOLGHBHU-UHFFFAOYSA-N 0.000 claims description 3
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- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 4
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G13/00—Apparatus specially adapted for manufacturing capacitors; Processes specially adapted for manufacturing capacitors not provided for in groups H01G4/00 - H01G11/00
- H01G13/02—Machines for winding capacitors
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Electric Double-Layer Capacitors Or The Like (AREA)
Abstract
The invention discloses a production line device and a manufacture method of a wound type supercapacitor. The manufacture method is carried in a production line device and comprises the following steps of: a, coating an electric conduction base membrane A, to be specific, uniformly coating a uniformly mixed conductive paste on a current collector subjected to surface treatment by using a coating machine or coating mould; b, coating an active material layer B membrane, to be specific, mixing, stirring and dispersing a carbon base active material, a conductive agent and a binding agent according to a certain proportion to prepare a uniform paste with a certain viscosity, density and solid content, coating on a current collector attached with the electric conduction base membrane A or current collector which is not attached with the electric conduction base membrane A by using the coating machine or coating mould; c, rolling and slitting a super capacitor pole piece; d, splitting a porous isolation membrane; e, winding a cell; and f, packaging a super capacitor. The invention has the advantage of enabling the wound type supercapacitor to have enhanced stability, good quality and stable performance.
Description
Technical field
The present invention relates to a kind of production line device and manufacturing approach thereof of winding type super capacitor.
Background technology
It is a kind of novel energy-storing device that ultracapacitor is double electric layer capacitor again, and it has characteristics such as charging interval weak point, long service life, good temp characteristic, energy savings and environmental protection.
Ultracapacitor is a kind of novel energy-storing device between traditional capacitor and secondary cell that occurs in recent years; Have the dual-use function of battery and capacitor concurrently; Have high-energy-density, high-specific-power, the speed that discharges and recharges is fast, have extended cycle life, the wide series of advantages such as (40～+ 85 ℃) of working temperature; Along with energy-conservation and rise new energy technology; Super capacitor is with a wide range of applications in a plurality of fields such as the energy, communication, electronics, military affairs, has obtained fast development on the market at home and abroad.
A complete ultracapacitor device comprises several main parts such as electrode, electric capacity pole piece, electrolyte, barrier film, encapsulating housing and forms, and wherein the selection of the preparation technology of electrode and electrolyte is the step of most critical in the ultracapacitor production.Current research to electrolytic solution for super capacitor is comparative maturity, organic electrolyte commonly used at home and abroad producer obtained generally using.But the technology of preparing of electrode of super capacitor is domestic still immature, and producer that can volume production is very few.The quality of electrode fabrication, about directly super capacitor performance of products quality.
Current both at home and abroad about the technology for preparing electrode aspect of ultracapacitor, the methods such as coating, roll-in that mainly contain prepare the super capacitor condenser plate.Common button ultracapacitor generally adopts the roll-in mode to prepare pole piece, and convoluted product adopts the painting method preparation more.The general scale of producer is less, the equipment insufficient investment.Coating process is the effective mode of production that in lithium ion battery is produced, has extensively adopted; Because ultracapacitor pole piece preparation technology and lithium ion battery preparation technology have many similarities, domestic super capacitor electrode fabrication is over-borrowing mirror lithium ion battery preparation technology also, also therefore has problems.Typical problem is; Ultracapacitor is because carbon based material has high specific area and good adsorption effect; Adopt that lithium ion battery preparation technology often exists that the charcoal based active material is not firm in the collection liquid surface bonding, organic solvent is difficult to eradicate, the electrode surface film is prone to broken, the thick slightly easy dry linting of coating thickness and the binding material that adopted to many shortcomings such as the stability of organic solvent still are weak; Directly cause the product stability ability not fully up to expectations, scale of mass production is difficulty comparatively.
Summary of the invention
The production line device and the manufacturing approach thereof of a kind of winding type super capacitor of the present invention, solution charcoal based active material is not firm in the collection liquid surface bonding, organic solvent is difficult to eradicate, the electrode surface film is prone to fragmentation, the thick slightly easy dry linting of coating thickness directly causes product stability ability problem not fully up to expectations.
This manufacturing approach is to carry out at the production line device; Processing step is following: a, coating conduction basement membrane A film: said coating conduction basement membrane A film is to be uniformly coated on the electrocondution slurry that mixes on the collector of surface treated capacitor electrode slice with coating machine or coating die; The coating thickness of wherein said coating conduction basement membrane A film is 5～15um; Double spread keeps surface density at 0.2～5mg/cm2, said coating conduction basement membrane A film resistance rate≤100m Ω/cm;
B, coating active material layer B film: said coating active material layer B film is that charcoal based active material, conductive agent, binding agent are mixed according to a certain percentage, stir, disperse; Process have certain viscosity, the uniform sizing material of density and solid content, be coated on the collector of conduction basement membrane A film or with on the collector of said conduction basement membrane A film through coating machine or coating die; The coating thickness of said coating active material layer B film is 50～500um, double spread, and surface density remains on 0.5～50mg/cm2;
C, the roll-in of super capacitor pole piece are cut: with the super capacitor electrode slice of above-mentioned steps preparation on the roll squeezer through after the roll-in repeatedly; According to winding type super capacitor electrode slice is cut in the requirement of coiling size, obtain preparing needed anode pole piece of ultracapacitor product and cathode pole piece respectively;
D, cut porous isolating membrane: porous isolating membrane is cut in the requirement according to the coiling size;
E, the electric core of reeling: with prepared ultracapacitor anode pole piece, cathode pole piece and porous isolating membrane, after dry, on electricity core winding machine, reel, process electric core;
The encapsulation of f, ultracapacitor: the electric core that will process is packed into behind the electrochemical capacitor housing, injects electrolyte, encapsulated moulding.
Be as further improvement of the present invention: said collector can be selected metal aluminum foil or Copper Foil manufacturing for use.
Be as further improvement of the present invention: said conductive agent, charcoal based active material, binding agent mix, stir, disperse according to mass ratio 5%:80%-89%:5%-12%.
Be as further improvement of the present invention: used charcoal based active material is an active carbon in the said manufacture method; Carbonaceous materials such as class graphite charcoal, amorphous charcoal; The active material specific area is at 300～3000m2/g, and electric conducting material is batteries such as conductive black, acetylene black, conductive carbon fibre, electrically conductive graphite conductive agents commonly used;
The used binding agent of said conduction basement membrane A film is the heat molten type adhesive, and said hot-melt adhesive is butadiene-styrene rubber (SBR), acrylic resin modified, polyurethane, polyacrylonitrile etc.;
The used binding agent of wherein said coating active material layer B film is to have in the fluorinated polymeric binder of good filming ability one or more, like Kynoar (PVDF), polytetrafluoroethylene (PTFE), ethylene-tetrafluoroethylene copolymer (EPTFE), fluorinated ethylene propylene copolymer (FEP), tetrafluoroethene-perfluorinated alkoxy vinyl ether copolymer (PFA) etc.
Be as further improvement of the present invention: said porous isolating membrane can be selected polyethylene film, polypropylene screen or their polymer-modified and poly tetrafluoroethylene, the manufacturing of paper barrier film for use.
A kind of production line device of winding type super capacitor comprises electrode plates production line, electricity core winding machine.
Said this electrode plates production line comprises frame, controller, and said controller is installed in said frame wherein on the side; On said frame, from left to right set gradually unreeling machine, applicator roll, moulding tunnel, winder are installed; A wherein said applicator roll wherein side and coating machine is connected, and the top in said moulding tunnel is installed and induced draft fan is set and inner the installation is provided with drying machine and roll squeezer.
Wherein the electrode plates material through unreeling machine, cross applicator roll, pass from the moulding tunnel after, at last by the winder rolling; Drying machine and roll squeezer are installed in the moulding tunnel.
Be as further improvement of the present invention: said electricity core winding machine comprises make-up machine, Wire guide roller, fixing successively four Wire guide rollers on the said make-up machine.
The invention has the beneficial effects as follows: processing step of the present invention is to carry out at the production line device, and production efficiency height and charcoal based active material bond firmly, remove organic solvent etc. at collection liquid surface, makes the stability of product strengthen good product quality.
Description of drawings
Fig. 1, this figure are the structural representations of electrode plates production line;
Fig. 2, this figure are the structural representations of electricity core winding machine;
Fig. 3, this figure are the assembling sketch mapes of ultracapacitor;
Wherein: 1-unreeling machine, 2-coating machine, 3-applicator roll, 4-moulding tunnel, 5-induced draft fan, 6-winder, 7-frame, 8-make-up machine, 9-controller, 10-Wire guide roller, 11-porous isolating membrane, 12-electric capacity cathode pole piece, 13-capacitance cathode pole piece, 14-electricity core, 15-negative pole, anodal, the 17-encapsulating housing of 16-.
Embodiment
Below in conjunction with accompanying drawing the present invention is made further detailed description:
The manufacturing approach of a kind of winding type super capacitor of present embodiment; This manufacturing approach is in the production line device, to carry out; Processing step is following: a, coating conduction basement membrane A film: said coating conduction basement membrane A film is that the electrocondution slurry that mixes is uniformly coated on the surface treated collector with coating machine or coating die; The coating thickness of wherein said coating conduction basement membrane A film is 5um; Double spread keeps surface density at 0.2mg/cm2, said coating conduction basement membrane A film resistance rate≤100m Ω/cm;
B, coating active material layer B film: said coating active material layer B film is that charcoal based active material, conductive agent, binding agent are mixed, stir, disperse according to mass ratio 87%:5%:8%; Process have certain viscosity, the uniform sizing material of density and solid content, be coated on the collector of conduction basement membrane A film or with on the collector of said conduction basement membrane A film through coating machine or coating die; The coating thickness of said coating active material layer B film is 50um, double spread, and surface density remains on 0.5mg/cm2;
Wherein wherein said collector is selected the metal aluminum foil manufacturing for use; Used charcoal based active material is an active carbon in the said manufacture method, and the active material specific area is at 300～3000m2/g, and electric conducting material is a conductive black;
The used binding agent of said conduction basement membrane A film is the heat molten type adhesive, like butadiene-styrene rubber, acrylic resin modified, polyurethane, polyacrylonitrile etc.;
The used binding agent of wherein said coating active material layer B film is to have multiple in the fluorinated polymeric binder of good filming ability, Kynoar (PVDF), polytetrafluoroethylene (PTFE), ethylene-tetrafluoroethylene copolymer (EPTFE).
C, the roll-in of super capacitor pole piece are cut: with the super capacitor electrode slice of above-mentioned steps preparation on the roll squeezer through after the roll-in repeatedly, make it have certain thickness, surface density, film forming and collector had good cohesive force.According to winding type super capacitor electrode slice is cut in the requirement of coiling size, obtain preparing needed anode pole piece of ultracapacitor product and cathode pole piece respectively;
D, cut porous isolating membrane: porous isolating membrane is cut in the requirement according to the coiling size; Said porous isolating membrane is selected the polyethylene film manufacturing for use.
E, the electric core of reeling: the said porous isolating membrane of cutting is that the electric core of said coiling is, with prepared ultracapacitor anode pole piece, cathode pole piece and porous isolating membrane, after dry, on electricity core winding machine, reels, and processes electric core;
The encapsulation of f, ultracapacitor: said ultracapacitor encapsulation is, the electric core of processing is packed into behind the electrochemical capacitor housing, injects electrolyte, encapsulated moulding.
The production line device of a kind of winding type super capacitor of present embodiment comprises electrode plates production line, electricity core winding machine.
Like Fig. 1, said this electrode plates production line comprises frame 7, controller 9, and said controller 9 is installed in said frame 7 wherein on the side; On said frame 7, from left to right set gradually unreeling machine 1, applicator roll 3, moulding tunnel 4, winder 6 are installed; Wherein said applicator roll 3 a wherein side and coating machine 2 is connected, and the top in said moulding tunnel 4 is installed and induced draft fan 5 is set and inner the installation is provided with drying machine and roll squeezer.
Wherein the electrode plates material through unreeling machine 1, cross applicator roll 3, pass from moulding tunnel 4 after, at last by winder 6 rollings.
Like Fig. 2; Said electricity core winding machine comprises make-up machine 8, Wire guide roller 10; Fixing successively four Wire guide rollers 10 on the said make-up machine 8, wherein porous isolating membrane 11, electric capacity cathode pole piece 12, capacitance cathode pole piece 13 threes are imported make-up machine 8 by Wire guide roller 10 and process electric core 14.
Like Fig. 3 is the scheme of erection of ultracapacitor, comprises negative pole 15, positive pole 16, porous isolating membrane 11, electric capacity cathode pole piece 12, capacitance cathode pole piece 13, encapsulating housing 17; Negative pole 15 communicates with electric capacity cathode pole piece 12, and anodal 16 communicate with capacitance cathode pole piece 13, and porous isolating membrane 11 is between electric capacity cathode pole piece 12 and capacitance cathode pole piece 13; The three is rolled into electric core 14 together; Put among the encapsulating housing 17, inject electrolyte, encapsulated moulding; Used collector is a metal aluminum foil, and negative pole 15 and anodal 16 utilizes silver-plated, and encapsulating housing 17 is that metallic aluminium is processed, and encapsulating material is the heatproof insulating cement, and porous isolating membrane 11 usefulness polyethylene film punchings are processed.
The beneficial effect of present embodiment is: production efficiency height and charcoal based active material bond firmly, remove organic solvent etc. at collection liquid surface, make the stability of product strengthen good product quality.
Claims (10)
1. the manufacturing approach of a winding type super capacitor; It is characterized in that: this manufacturing approach is in the production line device, to carry out; Processing step is following: a, coating conduction basement membrane A film: said coating conduction basement membrane A film is to be uniformly coated on the electrocondution slurry that mixes on the collector of surface treated capacitor electrode slice with coating machine or coating die; The coating thickness of wherein said coating conduction basement membrane A film is 5～15um; Double spread keeps surface density at 0.2～5mg/cm2, said coating conduction basement membrane A film resistance rate≤100m Ω/cm;
B, coating active material layer B film: said coating active material layer B film is that charcoal based active material, conductive agent, binding agent are mixed according to a certain percentage, stir, disperse; Process have certain viscosity, the uniform sizing material of density and solid content, be coated on the collector of conduction basement membrane A film or with on the collector of said conduction basement membrane A film through coating machine or coating die; The coating thickness of said coating active material layer B film is 50～500um, double spread, and surface density remains on 0.5～50mg/cm2;
C, the roll-in of super capacitor pole piece are cut: with the super capacitor electrode slice of above-mentioned steps preparation on the roll squeezer through after the roll-in repeatedly; According to winding type super capacitor electrode slice is cut in the requirement of coiling size, obtain preparing needed anode pole piece of ultracapacitor product and cathode pole piece respectively;
D, cut porous isolating membrane: porous isolating membrane is cut in the requirement according to the coiling size;
E, the electric core of reeling: with prepared ultracapacitor anode pole piece, cathode pole piece and porous isolating membrane, after dry, on electricity core winding machine, reel, process electric core;
The encapsulation of f, ultracapacitor: the electric core of processing is packed into behind the electrochemical capacitor housing, injects electrolyte, encapsulated moulding.
2. the manufacturing approach of a kind of winding type super capacitor according to claim 1, it is characterized in that: said collector can be selected metal aluminum foil or Copper Foil manufacturing for use.
3. the manufacturing approach of a kind of winding type super capacitor according to claim 1 is characterized in that: said conductive agent, charcoal based active material, binding agent mix, stir, disperse according to mass ratio 5%:80%-89%:5%-12%.
4. the manufacturing approach of a kind of winding type super capacitor according to claim 1, it is characterized in that: said porous isolating membrane can be selected polyethylene film, polypropylene screen or their polymer-modified and poly tetrafluoroethylene, the manufacturing of paper barrier film for use.
5. the manufacturing approach of a kind of winding type super capacitor according to claim 1; It is characterized in that: used charcoal based active material is an active carbon in the said manufacture method; Carbonaceous materials such as class graphite charcoal, amorphous charcoal; The active material specific area is at 300～3000m2/g, and electric conducting material is batteries such as conductive black, acetylene black, conductive carbon fibre, electrically conductive graphite conductive agents commonly used.
6. the manufacturing approach of a kind of winding type super capacitor according to claim 1, it is characterized in that: the used binding agent of said conduction basement membrane A film is the heat molten type adhesive.
7. the manufacturing approach of a kind of winding type super capacitor according to claim 6 is characterized in that: said heat molten type adhesive is butadiene-styrene rubber (SBR), acrylic resin modified, polyurethane or polyacrylonitrile.
8. the manufacturing approach of a kind of winding type super capacitor according to claim 1; It is characterized in that: the used binding agent of wherein said coating active material layer B film is to have in the fluorinated polymeric binder of good filming ability one or more, like Kynoar (PVDF), polytetrafluoroethylene (PTFE), ethylene-tetrafluoroethylene copolymer (EPTFE), fluorinated ethylene propylene copolymer (FEP), tetrafluoroethene-perfluorinated alkoxy vinyl ether copolymer (PFA) etc.
9. the production line device of a winding type super capacitor; It is characterized in that: comprise electrode plates production line, electricity core winding machine; Said this electrode plates production line; Comprise frame (7), controller (9), said controller (9) is installed in said frame (7) wherein on the side; On said frame (7), from left to right set gradually unreeling machine (1), applicator roll (3), moulding tunnel (4), winder (6) are installed; Wherein said applicator roll (a 3) wherein side and coating machine (2) is connected, and the top in said moulding tunnel (4) is installed and induced draft fan (5) is set and inner the installation is provided with drying machine and roll squeezer.
10. the production line device of a kind of winding type super capacitor according to claim 9, it is characterized in that: said electricity core winding machine comprises make-up machine (8), Wire guide roller (10), fixing successively four Wire guide rollers (10) on the said make-up machine (8).
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| CN2012102936784A CN102832052A (en) | 2012-08-17 | 2012-08-17 | Production line device and manufacture method of wound type supercapacitor |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103295801A (en) * | 2013-04-28 | 2013-09-11 | 宁波南车新能源科技有限公司 | Method for manufacturing super capacitor |
| CN105390299A (en) * | 2015-12-16 | 2016-03-09 | 湖南耐普恩科技有限公司 | Preparation method for supercapacitor pole piece |
| CN105489832A (en) * | 2015-11-25 | 2016-04-13 | 百顺松涛（天津）动力电池科技发展有限公司 | Method for solving serious roll sticking problem of aqueous cathode slurry in rolling process |
| CN108140485A (en) * | 2015-10-13 | 2018-06-08 | 纳米技术仪器公司 | For producing the continuation method for the electrode for being used for the ultracapacitor with high-energy density |
| CN114424371A (en) * | 2019-09-24 | 2022-04-29 | U&S能源公司 | Collector for positive electrode |
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| CN103295801A (en) * | 2013-04-28 | 2013-09-11 | 宁波南车新能源科技有限公司 | Method for manufacturing super capacitor |
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| CN108140485A (en) * | 2015-10-13 | 2018-06-08 | 纳米技术仪器公司 | For producing the continuation method for the electrode for being used for the ultracapacitor with high-energy density |
| CN108140485B (en) * | 2015-10-13 | 2022-04-01 | 纳米技术仪器公司 | Continuous process for producing electrodes for supercapacitors having a high energy density |
| CN105489832A (en) * | 2015-11-25 | 2016-04-13 | 百顺松涛（天津）动力电池科技发展有限公司 | Method for solving serious roll sticking problem of aqueous cathode slurry in rolling process |
| CN105390299A (en) * | 2015-12-16 | 2016-03-09 | 湖南耐普恩科技有限公司 | Preparation method for supercapacitor pole piece |
| CN114424371A (en) * | 2019-09-24 | 2022-04-29 | U&S能源公司 | Collector for positive electrode |
| CN114424371B (en) * | 2019-09-24 | 2024-03-01 | U&S能源公司 | Collector for positive electrode |
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