CN107818874A - A kind of ultracapacitor and preparation method thereof - Google Patents
A kind of ultracapacitor and preparation method thereof Download PDFInfo
- Publication number
- CN107818874A CN107818874A CN201711220018.2A CN201711220018A CN107818874A CN 107818874 A CN107818874 A CN 107818874A CN 201711220018 A CN201711220018 A CN 201711220018A CN 107818874 A CN107818874 A CN 107818874A
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- Prior art keywords
- plate
- ultracapacitor
- battery lead
- positive
- negative
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES OR LIGHT-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
- H01G11/22—Electrodes
- H01G11/26—Electrodes characterised by their structure, e.g. multi-layered, porosity or surface features
- H01G11/28—Electrodes characterised by their structure, e.g. multi-layered, porosity or surface features arranged or disposed on a current collector; Layers or phases between electrodes and current collectors, e.g. adhesives
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES OR LIGHT-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
- H01G11/66—Current collectors
- H01G11/68—Current collectors characterised by their material
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES OR LIGHT-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
-
- 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 invention discloses a kind of ultracapacitor and preparation method thereof, a kind of ultracapacitor includes housing and the battery lead plate positioned at enclosure interior, battery lead plate includes positive plate and negative plate, paper membrane is provided between positive plate and negative plate, battery lead plate includes collector plate and inorganic active material, inorganic active material is coated in the both sides of collector plate, and collector plate is steel band.Preparation method includes slurrying, pickling, coating, dries, cuts and encapsulate.Inorganic system's ultracapacitor of the present invention, the dispersiveness of active material is higher, greatly reduces the resistance of ultracapacitor, has higher electric capacity total amount；Overcome organic system super capacitor high pressure unbalanced problem in groups；Organic matter, more safety and environmental protection are not contained.The ultracapacitor of the present invention has the advantages that reliable, safety, cost are low, green.
Description
Technical field
The present invention relates to capacitor area, more particularly to a kind of inorganic system's ultracapacitor and preparation method thereof.
Background technology
It is a kind of new that ultracapacitor, which is called double layer capacitor (Electrical Double-Layer Capacitor),
Type energy storage device, it has the characteristics that, and the charging interval is short, service life is long, good temp characteristic, saves the energy and green.It is super
Level capacitor is widely used.Ultracapacitor (supercapacitor, ultracapacitor), is called double layer capacitor
(Electrical Double-Layer Capacitor), electrochemical capacitor (Electrochemcial Capacitor,
EC), gold electric capacity, farad capacitor, by polarized electrolytic matter come energy storage.It is a kind of electrochemical element, but in the mistake of its energy storage
Journey does not chemically react, and this thermal energy storage process is reversible, also just because of this ultracapacitor can be with repeated charge number
100000 times.Ultracapacitor can be considered as the two reactionless active porous electrode plates to suspend in the electrolyte, in pole plate
Upper power-up, positive plate attract the anion in electrolyte, and negative plate attracts cation, actually forms two capacitive accumulation layers,
The cation being separated is near negative plate, and anion is near positive plate.
Mainly produced and studied to be leading around Li+ in organic system both at home and abroad, although the energy density of organic system
Higher than it is inorganic be 4 times or so, but organic system be nearly all monomer manufacture (based on 2.5v-2.7v), then partial volume is full in groups
Sufficient high-voltage applications, battery, the consistency problem of electric capacity are a global problems, and only batch production capacity is more than thousand, ten thousand lists
Just there is the leeway that partial volume is applied in groups in the enterprise of member, is just had a greatly reduced quality more than 48V reliabilities.
Further, since it is leading using Li+, super capacitor will unavoidably use organic solvent, therefore, in security requirement
High field cannot be safe to use.If being packaged with any point leakage, lithium separates out to be let out with water vigorous reaction, organic solvent
Leakage can trigger fire, and if blast may be triggered by blocking tight not good valve control design.For example, automobile application is just very
With caution, vehicle-mounted laser weapon, magnetic artillery etc. need the field of high pressure, high power density just dare not hastily use etc..
The content of the invention
The invention provides a kind of ultracapacitor and preparation method thereof, can solve the problem that one in above-mentioned prior art problem
Kind is several.
According to an aspect of the invention, there is provided a kind of ultracapacitor, including housing and the electricity positioned at enclosure interior
Pole plate, battery lead plate include positive plate and negative plate, and paper membrane is provided between positive plate and negative plate, and battery lead plate includes collector plate and nothing
Machine active material, inorganic active material are coated in the both sides of collector plate, and collector plate is steel band.
The invention has the advantages that inorganic system's ultracapacitor of the present invention, the dispersiveness of active material is higher, significantly
The resistance of ultracapacitor is reduced, there is higher electric capacity total amount；It is unbalanced in groups to overcome organic system super capacitor high pressure
Problem；Organic matter, more safety and environmental protection are not contained.The ultracapacitor of the present invention is low with reliable, safety, cost, green ring
The advantages that guarantor.Inorganic system's ultracapacitor monomer can complete 600v-1F and be applied to army, 320v-2F application wind-driven generators
Become oar power supply, 120v-4F is used for Weak hybrid power car.
In some embodiments, inorganic active material includes lithium sulfate and potassium hydroxide.Its advantage is the electrolysis
Matter electron mobility is higher, and has higher security, the significantly performance for improving ultracapacitor.
In some embodiments, inorganic active material also includes carbon material.Its advantage is that carbon material is particularly more
Hole carbon material has larger specific surface area, and internal resistance is smaller, can greatly improve the specific capacity of ultracapacitor.
In some embodiments, carbon material is activated carbon, carbon fiber or graphene.Its advantage is activated carbon system
Standby abundant raw material, it is cheap, the capacity of double layer capacitor can be improved after activation, improves the combination property of capacitor；Carbon is fine
It is more excellent to tie up performance, has higher active and environmentally friendly, there is wide application prospect；Graphene is by the carbon of sp2 hydridization
Atom solid matter is into cellular two dimensional crystal structure, the chemical property with high-specific surface area, excellent electric property and stabilization,
Dynamic deformation is more excellent, it will greatly improves the combination property of ultracapacitor.
In some embodiments, positive plate and negative plate are multiple that one end bending of the collector plate of positive plate is formed
Positive pole beam, one end bending of the collector plate of negative plate form negative pole beam, and positive pole beam is fixed with positive pole ear by rivet, is born
Pole beam is fixed with negative lug by rivet.Its advantage is that collector plate bending forms positive pole beam and negative pole beam, significantly
Stability, the security of catchment area and capacitor are improved, electric energy is finally drawn by positive pole beam and negative pole beam.
In some embodiments, in addition to negative pole pole and Positive Poles, housing is provided with duct, Positive Poles and negative
Pole pole stretches out housing by duct, and positive pole ear is connected with Positive Poles, and negative lug is connected with negative pole pole.It has
Beneficial effect is that positive pole beam is connected by positive pole ear with Positive Poles, and negative pole beam is connected by negative lug with negative pole pole
Connect, be connected by Positive Poles and negative pole pole with extraneous electrical appliance, the sealing of ultracapacitor built-in electrical insulation, ensure discharge and recharge
Safety.
In some embodiments, in addition to silicagel pad, silicagel pad are embedded in duct, and Positive Poles and negative pole pole pass through
Through hole in silicagel pad stretches out housing.Its advantage is riveting part to be provided with inside ultracapacitor, by silicagel pad and electrode terminal
The energy fixation of manageing it, insulated enclosure is carried out by silicagel pad, ensure that the Electrical Safety of electrode terminal is stable.
According to another aspect of the present invention, there is provided a kind of such as the preparation method of above-mentioned ultracapacitor, including following step
Suddenly：
S001, slurrying, 10-20kg potassium hydroxide is added in 100kg distilled water, it is stirring while adding to carry out potassium hydroxide
Dissolving forms solution A, the addition 80kg grapheme materials stirring while adding into solution A, well mixed to form inorganic active electrolysis
Slurries；
S002, pickling, the sulfuric acid solution for preparing 60-90% corrode to collector plate, then wash away collection using distilled water
The acid solution on flowing plate surface is simultaneously dried；
S003, coating, the inorganic active electrolytic bath in step S001 is coated uniformly on by afflux using unicoater
The two sides of plate；
S004, drying, the collector plate after coating slurries in step S003 is subjected to drying winding in an oven and obtains electrode
Plate, drying temperature are three phases, are followed successively by 60-70 DEG C at 5min, 90-110 DEG C 5min at 10 minutes, 60-70 DEG C..From
And temperature can be adjusted according to the size of capacity, to control the thickness of coating material.
S005, cut, battery lead plate is cut；
S006, encapsulation, the battery lead plate after some cut is taken, is provided with paper membrane between every adjacent two battery lead plate, is compacted,
It is put into housing and is packaged reinforcing, forms ultracapacitor.
Its advantage is, in this method, while carries out battery lead plate dual coating, coating, drying and winding integration,
Coating efficiency is high, ensures ultracapacitor entire normalization；Ultrasonic wave is carried out to collector plate to wash, ensure the coating of sheet material before coating
Quality, improve performance of the supercapacitor.
In some embodiments, entangled before battery lead plate coating and before winding using automatic deviation rectifying device
Partially, and to the battery lead plate after coating it is coated quality testing.Its advantage is to adjust the position and angle of battery lead plate in time
Degree, ensure the uniformity and thickness of active material coating, improve coating quality, reduce substandard products, meet the needs of ultracapacitor.
In some embodiments, in step S006, one end of non-conterminous battery lead plate is carried out from some battery lead plates
Bending is fixed to form positive pole beam, and one end of remaining non-conterminous battery lead plate carries out bending and fixes to form negative pole beam.
Brief description of the drawings
Fig. 1 is the structural representation of the ultracapacitor of an embodiment of the present invention；
Fig. 2 is another angle schematic diagram of ultracapacitor shown in Fig. 1；
Fig. 3 is the schematic diagram of the battery lead plate of ultracapacitor shown in Fig. 1；
Fig. 4 is that the battery lead plate of ultracapacitor of the present invention coats drying unit schematic diagram.
Embodiment
The invention will now be described in further detail with reference to the accompanying drawings.
Fig. 1-3 schematically shows the ultracapacitor according to one embodiment of the present invention.As illustrated, the dress
The battery lead plate 2 including housing 1 and inside housing 1 is put, battery lead plate 2 includes positive plate 21 and negative plate 22, the He of positive plate 21
Paper membrane 3 is provided between negative plate 22, battery lead plate 2 includes collector plate 23 and inorganic active material 24, and inorganic active material 24 coats
In the both sides of collector plate 23, collector plate 23 is steel band.Inorganic active material 24 includes carbon material and potassium hydroxide, inorganic electrolyte
Electron mobility is higher, and has higher security, the significantly performance for improving ultracapacitor.Carbon material is graphite
Alkene, have high-specific surface area, excellent electric property and stable chemical property, dynamic deformation more excellent, it will to carry significantly
The combination property of high ultracapacitor.
Positive plate 21 and negative plate 22 are multiple, and centre is provided with the compacting of paper membrane 3 and formed.The collector plate 23 of positive plate 21
One end be provided with and be left white bending and form positive pole beam 25, the bending that is left white of one end of the collector plate 23 of negative plate 22 forms negative pole beam
26, positive pole beam 25 is fixed with positive pole ear 4 by rivet 10, and negative pole beam 26 is consolidated with negative lug 5 by rivet 10
It is fixed.Positive pole ear 4 is connected with Positive Poles 7, and negative lug 5 is connected with negative pole pole 8, and housing 1 is provided with duct, positive pole
Pole 7 and negative pole pole 8 stretch out housing 1 by duct.So as to which the bending of collector plate 23 forms positive pole beam 25 and negative pole beam 26, greatly
Big stability, the security for improving catchment area and capacitor, electric energy are finally drawn by positive pole beam 25 and negative pole beam 26；Pass through
Positive Poles 7 and negative pole pole 8 are connected with extraneous electrical appliance, the sealing of ultracapacitor built-in electrical insulation, ensure the safety of discharge and recharge.
In order to be further ensured that the firm security of ultracapacitor, silicagel pad 6 is additionally provided with, silicagel pad 6 is embedded in duct
In, be provided with riveting part 9 inside ultracapacitor, silicagel pad 6 and electrode terminal can be manage it into fixation, Positive Poles 7 and negative pole pole 8 lead to
The through hole crossed in silicagel pad 6 stretches out housing 1.So as to carry out insulated enclosure by silicagel pad 6, ensure the electricity consumption peace of electrode terminal
It is complete stable.
Present invention also offers a kind of preparation method of above-mentioned ultracapacitor, comprise the following steps：
S001, slurrying, 10-20kg potassium hydroxide is added in 100kg distilled water, it is stirring while adding to carry out potassium hydroxide
Dissolving forms solution A, the addition 80kg grapheme materials stirring while adding into solution A, well mixed to form inorganic active electrolysis
Slurries；
S002, ultrasonic wave are washed, and the sulfuric acid solution for preparing 60-90% corrodes to collector plate 23, then using ultrasonic wave
Wash away the acid solution on the surface of collector plate 23 and dried；
S003, coating, the inorganic active electrolytic bath in step S001 is coated uniformly on by afflux using unicoater
The two sides of plate 23；
S004, drying, the collector plate 23 after coating slurries in step S003 is subjected to drying winding in baking oven 17 and obtained
Battery lead plate 2, drying temperature are three phases, are followed successively by 60-70 DEG C at 5min, 90-110 DEG C at 10 minutes, 60-70 DEG C
5min。。
S005, cut, battery lead plate 2 is cut；
S006, encapsulation, the battery lead plate 2 after some cut is taken, be provided with paper membrane 3 between every adjacent two battery lead plate 2, pressed
It is real, it is put into housing 1 and is packaged reinforcing, one end of non-conterminous battery lead plate 2 carries out bending and fixes shape from some battery lead plates 2
Into positive pole beam 25, one end of remaining non-conterminous battery lead plate 2 carries out bending and fixes to form negative pole beam 26, passes through connecting tab, pole
Post, encapsulation, form ultracapacitor.
In this method, the coating and drying of battery lead plate 2 are carried out using Fig. 4 shown devices.As illustrated, the afflux after pickling
Plate 23 is placed on unreeling machine 11, and collector plate 23 enters the adjustment position of deviation rectification roller 12 after unreeling, and nothing is carried out subsequently into applicator roll 13
The coating work of machine active electrolytic slurries.Inorganic active electrolytic bath is placed in magazine 14, can carry out the two-sided painting of double rods simultaneously
Cover.At least one end of applicator roll 13 is provided with fastener, and side is stayed to carry out screens to collector plate 23 in coating procedure.Electrode after coating
Plate 2 is guided by guide reel 15, and gradient drying is carried out into baking oven 17, and drying temperature is 70 DEG C -110 DEG C -70 DEG C, preferably
For 60 DEG C -90 DEG C -60 DEG C.This is in into before baking oven 17, is additionally provided with the coating thickness of the detecting electrode plate 2 of detector 16, and
When adjust coating processes, ensure coating quality.Battery lead plate 2 after the drying of baking oven 17 is drawn by guiding rolling, once passes through correction
After sensor 18, deviation rectification roller 12, position and the angle of battery lead plate 2 are adjusted in time, is wound finally by wind-up roll 19.
The preparation method of the ultracapacitor of the present invention, while the dual coating of battery lead plate 2 is carried out, coating, drying and receipts
Volume integration, coating efficiency is high, ensures ultracapacitor entire normalization；Pickling is carried out to collector plate 23 before coating, ensures plate
The coating quality of material, improve performance of the supercapacitor.
Above-described is only some embodiments of the present invention.For the person of ordinary skill of the art, not
On the premise of departing from the invention design, various modifications and improvements can be made, these belong to the protection model of the present invention
Enclose.
Claims (10)
1. a kind of ultracapacitor, it is characterised in that described including housing (1) and positioned at the internal battery lead plate (2) of housing (1)
Battery lead plate (2) includes positive plate (21) and negative plate (22), and paper membrane is provided between the positive plate (21) and negative plate (22)
(3), the battery lead plate (2) includes collector plate (23) and inorganic active material (24), and the inorganic active material (24) is coated in
The both sides of collector plate (23), the collector plate (23) are steel band.
2. ultracapacitor according to claim 1, it is characterised in that the inorganic active material (24) includes lithium sulfate
And potassium hydroxide.
3. ultracapacitor according to claim 2, it is characterised in that the inorganic active material (24) also includes carbon materials
Material.
4. ultracapacitor according to claim 1, it is characterised in that the carbon material is activated carbon, carbon fiber or stone
Black alkene.
5. ultracapacitor according to claim 1, it is characterised in that the positive plate (21) and negative plate (22) are
Multiple, one end bending of the collector plate (23) of the positive plate (21) forms positive pole beam (25), the afflux of the negative plate (22)
One end bending of plate (23) forms negative pole beam (26), and the positive pole beam (25) is consolidated with positive pole ear (4) by rivet (10)
Fixed, the negative pole beam (26) is fixed with negative lug (5) by rivet (10).
6. ultracapacitor according to claim 1, it is characterised in that also including negative pole pole (8) and Positive Poles
(7), the housing (1), which is provided with duct, the Positive Poles (7) and negative pole pole (8) and passes through the duct, stretches out the shell
Body (1), the positive pole ear (4) are connected with Positive Poles (7), and the negative lug (5) is connected with negative pole pole (8).
7. ultracapacitor according to claim 6, it is characterised in that also including silicagel pad (6), the silicagel pad (6)
In the duct, the Positive Poles (7) and negative pole pole (8) stretch out the housing by the through hole in silicagel pad (6)
(1)。
8. a kind of preparation method of the ultracapacitor as described in power 1 to 7, it is characterised in that comprise the following steps：
S001, slurrying, 10-20kg potassium hydroxide is added in 100kg distilled water, it is stirring while adding to be dissolved potassium hydroxide
Solution A is formed, the addition 80kg grapheme materials stirring while adding into solution A are well mixed to form inorganic active electrolytic bath；
S002, ultrasonic wave are washed, and the sulfuric acid solution for preparing 60-90% corrodes to collector plate (23), is then washed using ultrasonic wave
Go the acid solution on collector plate (23) surface and dried；
S003, coating, the inorganic active electrolytic bath in step S001 is coated uniformly on by collector plate using unicoater
(23) two sides；
S004, drying, the collector plate (23) after coating slurries in step S003 is subjected to drying winding in baking oven (17) and obtained
Battery lead plate (2), drying temperature are three phases, are followed successively by 60-70 DEG C at 5min, 90-110 DEG C at 10 minutes, 60-70 DEG C
5min。
S005, cut, battery lead plate (2) is cut；
S006, encapsulation, the battery lead plate (2) after some cut is taken, be provided with paper membrane (3) between every adjacent two battery lead plate (2), carry out
Compacting, is put into housing (1) and is packaged reinforcing, forms ultracapacitor.
9. ultracapacitor according to claim 1, it is characterised in that before battery lead plate (2) coating and wind it
It is preceding to be rectified a deviation using automatic deviation rectifying device, and quality testing is coated to the battery lead plate (2) after coating.
10. ultracapacitor according to claim 1, it is characterised in that in step S006, from some battery lead plates (2)
In one end of non-conterminous battery lead plate (2) carry out bending and fix to form positive pole beam (25), the one of remaining non-conterminous battery lead plate (2)
End carries out bending and fixes to form negative pole beam (26).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711220018.2A CN107818874A (en) | 2017-11-28 | 2017-11-28 | A kind of ultracapacitor and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711220018.2A CN107818874A (en) | 2017-11-28 | 2017-11-28 | A kind of ultracapacitor and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107818874A true CN107818874A (en) | 2018-03-20 |
Family
ID=61604947
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711220018.2A Pending CN107818874A (en) | 2017-11-28 | 2017-11-28 | A kind of ultracapacitor and preparation method thereof |
Country Status (1)
| Country | Link |
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| CN (1) | CN107818874A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113161160A (en) * | 2021-05-24 | 2021-07-23 | 南通江海电容器股份有限公司 | Novel ox horn formula lithium ion ultracapacitor system |
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| CN106128796A (en) * | 2016-06-08 | 2016-11-16 | 湖南耐普恩科技有限公司 | A kind of ultracapacitor, current collector of super capacitor and processing method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0855761A (en) * | 1994-08-16 | 1996-02-27 | Asahi Glass Co Ltd | Electric double layer capacitor and manufacture |
| JP2008027892A (en) * | 2006-07-18 | 2008-02-07 | Lg Chem Ltd | New electrode assembly with electrode lead-electrode tab joining part and electrochemical cell equipped with this |
| CN101159189A (en) * | 2007-09-10 | 2008-04-09 | 浙江大学宁波理工学院 | Super capacitor collection liquid surface treating method |
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|---|---|---|---|---|
| CN113161160A (en) * | 2021-05-24 | 2021-07-23 | 南通江海电容器股份有限公司 | Novel ox horn formula lithium ion ultracapacitor system |
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