CN101174509A - Collecting electrode used in super capacitor and its surface treating method - Google Patents
Collecting electrode used in super capacitor and its surface treating method Download PDFInfo
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/13—Energy storage using capacitors
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Abstract
The invention discloses a collector of super capacitor and the surface processing method, which is characterized in that a collector body film can be an aluminum film, a copper foil, a foam nickel film, a stainless steel film or punching nickel film; the purity of aluminum is over 99.9%; the thickness of the corrosion aluminum foil is 15 to 50 Mum; the roughness is 1.5 to 3.0 Mum; the collector body is spongy under 20000X electronic microscope; the average diameter of the corrosion hole is 0.05 to 0.2 Mum; 5 to 10 billion holes are arranged in the area of 1 cm2; the tensile strength is 1.0 to 3.0 kg/cm. The invention has the advantages that chromic acid mixture is adopted for chemical treatment for the surface of the current collector; dust on the surface of aluminum foil of the current collector during storage and transportation can be removed; anti-septic oil and anti-sticking agent on the aluminum foil during machining process are also effectively removed; active functional groups are added, enabling even and consistent distribution of coated electrode material; the adhesion strength of the electrode film is improved; internal resistance of the electrode is reduced, the specific surface area is increased; the collector is applicable to large scale production.
Description
One, technical field
The present invention relates to a kind of collector electrode and surface treatment method thereof, more particularly relate to a kind of collector electrode and surface treatment method thereof that is used for ultracapacitor
Two, technical background
The research and development novel energy is implemented to save energy and reduce the cost, and improving environmental quality is the important content of global energy development strategy.Ultracapacitor is that occur in recent years a kind of has high power, quick charge, the superpower energy storage device of long circulation life.It has the dual-use function of electric capacity and battery concurrently, and its functional density is far above common batteries, and it is a lot of soon to discharge and recharge speed than common batteries, and energy density is far above the common electrical electrolysis condenser, and its energy storage capacity is greater than ordinary capacitor.Compare with ordinary capacitor and battery, ultracapacitor has that volume is little, and capacity is big, and charging rate is fast, has extended cycle life discharge power height, working temperature wide (40 ℃-85 ℃), good reliability and advantage such as with low cost.Ultracapacitor is developing into a kind of novel, efficient, practical energy storage and fast charging and discharging equipment.Thereby, very application prospects is all arranged in fields such as the energy, communication, number, electronics, medical treatment, health, network, automobiles.
A complete ultracapacitor comprises bipolar electrode, electrolyte, collector, four parts of spacer.At present the electrode material of the ultracapacitor of research is mainly aspect four: carbon electrode material, metal oxide and hydrate electrode material thereof, conductive polymer electrodes material, and combination electrode material.The carbon electrode material specific surface is very big, and raw material is cheap, helps realizing industrialized production, but specific capacity is relatively low.The specific capacity of metal oxide and hydrate electrode material thereof is higher, but its expensive cost and the potential safety hazard that environment exists limited their industrially scalable.The operating voltage height of conductive polymer electrodes material, thus the ability of energy storage can be improved.But this class material expands after soaking in organic bath easily, causes poor stability.Combination electrode material adopts different material systems to form to electrode, can improve the energy density of its storage, but its cycle stability is poor.Collector is then normally selected for use electric conductivity good metal and graphite to wait to serve as.
The electrode material of ultracapacitor is the key factor of decision capacitor performance.The technology of preparing of electrode material directly influences the performance of electrode material.Therefore, research and development specific capacity electrode material big, that resistivity is little is the task of top priority.At present, aspects such as the bonding strength of most of electrode materials, thermal stability, corrosion resistance, electric inertia are all not really desirable, and adopt one-shot forming to make, and its internal resistance reaches littler than electric capacity greatly, and can not satisfy the large-scale production requirement.
For the large-scale production that makes electrode material for super capacitor becomes a reality, the preparation of electrode material and technology should break through and innovate to some extent.The electrode material for super capacitor manufacturing technology should be towards Heat stability is good, bonding strength height, corrosion resistance is strong, technology is simple and the direction that is suitable for large-scale production develops.
People such as Mitchell have introduced the electrode design method of two voltage capacitors in patent United States Patent (USP) 7227737.Electrode is by collector and layers of active electrodes, and promptly active carbon layer is formed.Between two electrodes barrier film is arranged, this structure is immersed in forms ultracapacitor in the electrolyte.The thickness difference of layers of active electrodes, thus cause dissymmetrical structure that different capacitances is arranged.When applied voltage during in this super capacitor, voltage just is distributed on the secondary single capacitor unevenly.Suitably select electrode layers thickness can allow voltage on secondary single capacitor, evenly distribute, thereby improve the limiting voltage of ultracapacitor.People such as zhong have introduced impregnation process porous electrode and preparation method thereof in United States Patent (USP) 7147674.The porous electrode material comprises the sealed liquid impregnation process of active carbon, polymer and conductive carbon, and after the active electrode drying, gasket coating has just been sealed the micropore in active carbon and other porous materials, thereby has stoped hydrone and other impurity molecules to shift out.But the hole that gasket coating blow-by aperture is bigger.This pretreated active electrode material can be used for producing the electrode of super capacitor, and the hydrone that is sealed can not react with electrolyte, therefore can improve the limiting voltage of super capacitor.People such as Mitchell have introduced electrode dipping and bonding method in United States Patent (USP) 7102877.Two sides of porous basement membrane, are combined with collector then and are prepared into electrode by the support membrane double side support by conducting liquid dipping back, and this electrode can be used for store energy equipment.People such as Mitchell have introduced combination electrode and preparation method thereof in United States Patent (USP) 7090946.This combination electrode is made by the pressure compacting, is not in conjunction with preparation with adhesive.Collector is the aluminium foil preparation through surface active or the processing of other surface adhesion.By active carbon as the active electrode material film forming after, plasticate through two rollers, under heating, be pressed on the collector, thereby form electrode material, cut into electrode shape then.This electrode can be used to prepare energy storage devices such as double layer capacitor.People such as Mitchell have introduced a kind of electrode preparation method in United States Patent (USP) 6955684.On collector, be coated with electrically-conducting paint, solidify the ground floor electrically-conducting paint earlier, and then be coated with second layer coating and solidify it, thereby form electrode material.Used electrically-conducting paint is an active carbon, adds PVDF, and is polyamide-based, is dissolved in acetone, butanone, the N-methyl pyrrolidone equal solvent.People such as Bendale have introduced a kind of super capacitor preparation method in the U.S. 6813139.Earlier aluminium shell is swollen through heating, add electrode and two lids up and down.Fasten lid because of contraction when aluminum hull cools off, the aperture on lid adds electrolyte and makes super capacitor to sealing.People such as Nanjundiam are at United States Patent (USP) 6804108; 6643119; 6631074; With 6627252 in introduced electrode preparation method.All be coated with ground floor conductive adhesive (conductive adhesive) coating on the two sides of aluminium foil, after drying, at two-sided active electrode material (the active electrode material) coating of coating, be prepared into electrode material after drying again.Used electrically-conducting paint is water-soluble by active carbon, PVDF, acetone, methylcellulose, own propyl group diene fourth monomer etc.
People such as Zuckerbrod disclose a kind of electrode by utilizing adhesive that active carbon is mixed with powder of stainless steel to prepare in No. the 4448856th, United States Patent (USP).The density of each powder is limited to 25～450 μ m, with these powder coated on nickel wire line or sheet metal as current-collector, thereby make electrode.
The method of above-mentioned manufacturing active carbon or activated fibre electrode has been represented the various technologies that reduce the resistance between active carbon electrode material and the current-collector.Because active carbon can be made into the form of fiber, thereby can consider charcoal treatment is become the whole bag of tricks of electrode.But, can not make fibers form to carbon nano-tube or carbon nano-fiber, this has produced restriction to making carbon nanotube electrode or carbon nano-fiber electrode.Method in common is by the mixture of carbon nano-tube or carbon nano-fiber and adhesive being exerted pressure, making the carbon nanotube electrode or the carbon nano-fiber electrode of dish type.
People such as Niu [" High Power Electrochemical Capacitors Based on CarbonNanotube Electrodes ", Applied Physics Letter, 70, pp.1480-1482 (1997)] preparation of carbon nanotube electrode has been proposed, wherein utilize the oxidation processes of nitric acid and replace the function group (functional group) of about 10% on the carbon nano tube surface.Compare with the electrode that does not have to handle, surface treated electrode shows more performance.Particularly, they do not use adhesive to improve resistance between the carbon nano-tube by exerting pressure simply, and can prepare this electrode simply.
People such as Ma [" Study of Electrochemical Capacitors Utilizing CarbonNanotube Electrodes ", Journal of Power Sources 84, pp.126-129 (1999)] utilize phenolic resins (PF) powder to prepare carbon nanotube electrode as adhesive.They have proposed to make the following technology of carbon nanotube electrode: the molded mixture of carbon nano-tube and PF powder prepares electrode (A); Heat treatment makes this molded mixture carbonization prepare electrode (B); Electrode is immersed in the hot mixt of the concentrated sulfuric acid and nitric acid, then washing and dry preparation electrode (C).According to results of comparative experiment, electrode (A) shows the highest internal resistance, and this is because adhesive makes the performance degradation of electrode.Therefore, must carry out carbonization technique.It is the highest utilizing the performance of the electrode (C) of carbonization and nitric acid treatment, and is second high with the performance of the electrode (B) of carbonization treatment only.
People such as An [" Supercapacitors Using Single-Walled Carbon NanotubeElectrodes; Advanced Materials; 13; pp.479-500 (2001)] are by exerting pressure to carbon nano-tube and the mixture as the poly-inclined to one side fluorine divinyl (PVDF) of adhesive, then carbonization and prepare carbon nanotube electrode.
Disclose the employing polytetrafluoroethylene in Chinese patent CN1905100A number, vinylidene is an adhesive, uses the curtain coating coating process and prepares active carbon electrode material.This method has certain exploration to the preparation of electrode material.People such as Li Yongxi disclose the employing polytetrafluoroethylene in Chinese patent CN1317809A number, vinylidene, and phenolic resins, polyethylene occasion, shuttle methylcellulose are the CNT (carbon nano-tube) electrode of adhesive.Tan Qiang waits the people to disclose in Chinese patent CN1770344A number by force and adopts the electrode material of the composition of polytetrafluoroethylene or vinylidene and N-methyl pyrrolidone as adhesive.Natural minerals and CNT (carbon nano-tube) compound super capacitor electrode material and preparation method have invented and with the preparation method of Ru/C nanometer combined electrode material in Zhejiang University; Chengdu Organic Chemistry Inst., Chinese Academy of Sciences has invented carbon nano-tube and has been used for electrode material for super capacitor; A kind of preparation method of layered cobalt aluminium bihydroxy composite metal oxide electrode material has invented in Beijing University of Chemical Technology; Ultra-capacitor conductivity titania lithium electrode material with carbon and preparation method thereof has been invented by Fudan University.But because the vinylidene bonding strength is not enough, and generally use higher boiling point and toxic solvent.The many companies of the U.S. attempt using this type of adhesive, but the result is all undesirable.Therefore, all can not satisfy the needs of practical application with the electrode material of current method preparation.
Being used for the aluminium foil of collector electrode (collector) or other collector electrode films such as Copper Foil, nickel foam film, stainless steel film, punching nickel film etc. is storing and transportation, because some dusts may be stained with in the surface, so will before coating, remove dust, to guarantee to film cleaning with the ion wind transmission.Secondly, aluminium foil is in the course of processing, and the surface has antiseptic oil or antitack agent.Ooze out like this or be attached to the film surface adhering to or bonding force that influence is filmed.Therefore, surfaces such as aluminium foil or other collector electrode films such as Copper Foil, nickel foam film, stainless steel film, punching nickel film will be handled and be changed surface tension and surface texture with adhering to or bonding force that better raising is filmed.Existing collection liquid surface treating method has hot blast to handle, discharge oxidation, electron bombardment physical method etc.These methods have certain effect to removing the collection liquid surface dust, if but collection liquid surface has antiseptic oil or antitack agent, then can not effectively handle.And aspects such as the bonding strength of the electrode material after most of collector coatings, thermal stability, corrosion resistance, electric inertia are all not really desirable, and adopt one-shot forming to make, and its internal resistance is big and littler than electric capacity, and can not satisfy the large-scale production requirement.
Three, summary of the invention
One of purpose of the present invention provides a kind of collector electrode that is used for ultracapacitor.
Two of purpose of the present invention provides a kind of collector electrode and surface treatment method thereof that is used for ultracapacitor.
These and other objects of the present invention will further embody and set forth by following detailed description and explanation.
The collector electrode that is used for ultracapacitor of the present invention, the collector body film is a kind of in aluminium film, Copper Foil, nickel foam film, stainless steel film and the punching nickel film, the purity of aluminium is more than 99.9%, corrosive aluminum foil thickness is 15-50 μ m (micron), the one-sided thickness of roughness is 1.5-3.0 μ m, observe the surface and become spongy under 20,000 times electron microscope, the etch pit average pore size is 0.05-0.2 μ m, at 1cm
2Area on hundred million holes of 50-100 are arranged, hot strength is 1.0-3.0kg/cm.
Further, the collector electrode that is used for ultracapacitor of the present invention, corrosive aluminum foil thickness are 15-25 μ m, the one-sided thickness of roughness is 1.5-2.5 μ m, observe the surface and become spongy under 20,000 times electron microscope, the etch pit average pore size is 0.07-0.15 μ m, at 1cm
2Area on hundred million holes of 80-100 are arranged, hot strength is 1.5-2.5kg/cm.
What can select is, the collector electrode that is used for ultracapacitor of the present invention, corrosive aluminum foil thickness are 20 μ m, and the one-sided thickness of roughness is 2.0 μ m, observes the surface and become spongy under 20,000 times electron microscope, and the etch pit average pore size is 0.1 μ m, at 1cm
2Area on hundred million holes of 85-90 are arranged, hot strength is 1.6-2.0kg/cm.
In the surface treatment method of the collector electrode that is used for ultracapacitor of the present invention, described collector body film is the aluminium film, and is two-sided corrosion.Collector body film, particularly aluminium foil are handled through surface corrosion in chromic acid mixture.Described chromic acid mixture comprises chromic acid or chromate, the concentrated sulfuric acid and water, and its percentage by weight is: 4～10% chromic acid or chromate (as lithium chromate or bichromate), and 70～90% concentrated sulfuric acids, 5～15% water, total weight is 100.What can select is, described chromic acid mixture comprises chromic acid or chromate, the concentrated sulfuric acid and water, and its percentage by weight is: 4～5% chromic acid or chromate (as lithium chromate or bichromate), and 85～95% concentrated sulfuric acids, 6～9% water, total weight is 100.Collector body film, particularly aluminium foil are carried out surface corrosion through acid storage handle on coating machine, processing time 20-60 second, clean last oven drying, rolling then through rinse bath.
The present invention adopts the chromic acid mixture processing method that collection liquid surface is carried out chemical treatment; this processing method can not only effectively be removed the aluminium foil of collector and be stained with some dusts in the surface in storage and transportation; and can effectively remove the aluminium foil surface exists in the course of processing antiseptic oil or antitack agent; and increase active function groups; make that collector coating electrode material after the processing is evenly distributed, unanimity; improve the bonding strength of electrode film; reduce the internal resistance of electrode; increase specific area, suitability for scale production.
The all raw material of Shi Yonging comprises that additive etc. all is conventional uses, can buy from market in the present invention.
In the present invention, refer in particular to as non-, all amount, percentages are unit of weight.
Below further specify the present invention by specific embodiment, but embodiment only be used for the explanation, can not limit the scope of the invention.
Four, embodiment
Embodiment 1
Prepare chromic acid mixture in following ratio:
4 kilograms of chromic acid (concentration 60%), 90 kilograms of concentrated sulfuric acids (concentration 80%), 6 kg of water stir.
Aluminium foil is carried out surface corrosion through acid storage handle (20 meters/minute, 30 seconds processing times) on coating machine, clean up through rinse bath then, last oven drying, rolling.
The product that obtains is:
Aluminum foil thickness is 20 ± 2 μ m, and width is 500 ± 2mm, and length is 2000～3000m, and the one-sided thickness of roughness is 2.0 μ m, observes the surface and become spongy under 20,000 times electron microscope, and the etch pit average pore size is 0.1 μ m, at 1cm
2Area on hundred million holes of 85-90 are arranged, hot strength 1.9kg/cm.
Embodiment 2
Prepare chromic acid mixture in following ratio:
5 kilograms of chromic acid (concentration 60%), 85 kilograms of concentrated sulfuric acids (concentration 80%), 10 kg of water stir.
Aluminium foil is carried out surface corrosion through acid storage handle (20 meters/minute, 35 seconds processing times) on coating machine, clean up through rinse bath then, last oven drying, rolling.
The product that obtains is:
Aluminum foil thickness is 18 ± 2 μ m, and width is 500 ± 2mm, and length is 2000～3000m, and the one-sided thickness of roughness is 1.8 μ m, observes the surface and become spongy under 20,000 times electron microscope, and the etch pit average pore size is 0.08 μ m, at 1cm
2Area on hundred million holes of 85-100 are arranged, hot strength 1.6kg/cm.
Embodiment 3
Prepare chromic acid mixture in following ratio:
4.4 kilogram lithium chromate (concentration 60%), 88.3 kilograms of concentrated sulfuric acids (concentration 80%), 7.3 kg of water stir.
Aluminium foil is carried out surface corrosion through acid storage handle (20 meters/minute, 30 seconds processing times) on coating machine, clean up through rinse bath then, last oven drying, rolling.
The product that obtains is:
Aluminum foil thickness is 23 ± 2 μ m, and width is 500 ± 2mm, and length is 2000～3000m, corrosive aluminum foil thickness is 1 to 2 micron, and the one-sided thickness of roughness is 2.3 μ m, observes the surface and become spongy under 20,000 times electron microscope, the etch pit average pore size is 0.12 μ m, at 1cm
2Area on hundred million holes of 85-100 are arranged, hot strength 2.4kg/cm.
Embodiment 4
Prepare chromic acid mixture in following ratio:
8 kilogram weight potassium chromates (60%), 78 kilograms of concentrated sulfuric acids (80%), 14 kg of water stir.
The nickel foam film is carried out surface corrosion through acid storage handle (20 meters/minute, 40 seconds processing times) on coating machine, clean up through rinse bath then, last oven drying, rolling.
The product that obtains is:
The nickel foam film thickness is 17 ± 2 μ m, and width is 500 ± 2mm, and length is 2000～3000m, corrosion thickness is 0.5 to 1 micron, and the one-sided thickness of roughness is 1.6 μ m, observes the surface and become spongy under 20,000 times electron microscope, the etch pit average pore size is 0.07 μ m, at 1cm
2Area on hundred million holes of 95-100 are arranged, hot strength 2.5kg/cm.
Embodiment 5
Prepare chromic acid mixture in following ratio:
6 kilograms of chromic acid (60%), 88 kilograms of concentrated sulfuric acids (80%), 8 kg of water stir.
Copper Foil is carried out surface corrosion through acid storage handle (20 meters/minute, 60 seconds processing times) on coating machine, clean up through rinse bath then, last oven drying, rolling.
The product that obtains is:
Copper thickness is 20 ± 2 μ m, and width is 500 ± 2mm, and length is 2000～3000m, corrosion thickness is 1 to 2 micron, and the one-sided thickness of roughness is 2.0 μ m, observes the surface and become spongy under 20,000 times electron microscope, the etch pit average pore size is 0.09 μ m, at 1cm
2Area on hundred million holes of 95-100 are arranged, hot strength 2.0kg/cm.
Embodiment 6
Prepare chromic acid mixture in following ratio:
4.5 kilogram lithium chromate (concentration 60%), 88.2 kilograms of concentrated sulfuric acids (concentration 80%), 7.3 kg of water stir.
Aluminium foil is carried out surface corrosion through acid storage handle (20 meters/minute, 40 seconds processing times) on coating machine, clean up through rinse bath then, last oven drying, rolling.
The product that obtains is:
Aluminum foil thickness is 23 ± 2 μ m, and width is 500 ± 2mm, and length is 2000～3000m, corrosive aluminum foil thickness is 1 to 2 micron, and the one-sided thickness of roughness is 2.3 μ m, observes the surface and become spongy under 20,000 times electron microscope, the etch pit average pore size is 0.12 μ m, at 1cm
2Area on hundred million holes of 85-100 are arranged, hot strength 2.4kg/cm.
Claims (10)
1. collector electrode that is used for ultracapacitor, it is characterized in that the collector body film is a kind of in aluminium film, Copper Foil, nickel foam film, stainless steel film and the punching nickel film, the purity of aluminium is more than 99.9%, corrosive aluminum foil thickness is the 15-50 micron, the one-sided thickness of roughness is the 1.5-3.0 micron, observe the surface and become spongy under 20,000 times electron microscope, the etch pit average pore size is the 0.05-0.2 micron, at 1cm
2Area on hundred million holes of 50-100 are arranged, hot strength is 1.0-3.0kg/cm.
2. the collector electrode that is used for ultracapacitor according to claim 1, it is characterized in that corrosive aluminum foil thickness is the 15-25 micron, the one-sided thickness of roughness is the 1.5-2.5 micron, under 20,000 times electron microscope, observe the surface and become spongy, the etch pit average pore size is the 0.07-0.15 micron, at 1cm
2Area on hundred million holes of 80-100 are arranged, hot strength is 1.5-2.5kg/cm.
3. the collector electrode that is used for ultracapacitor according to claim 1 and 2, it is characterized in that corrosive aluminum foil thickness is 20 microns, the one-sided thickness of roughness is 2.0 microns, observes the surface and become spongy under 20,000 times electron microscope, the etch pit average pore size is 0.1 micron, at 1cm
2Area on hundred million holes of 85-90 are arranged, hot strength 1.6-2.0kg/cm.
4. according to the described collector electrode that is used for ultracapacitor of one of claim 1-3, it is characterized in that described collector body film is the aluminium film, and be two-sided corrosion.
5. according to the described surface treatment method that is used for the collector electrode of ultracapacitor of one of claim 1-4, it is characterized in that the collector body film is handled through surface corrosion in chromic acid mixture.
6. according to the described surface treatment method that is used for the collector electrode of ultracapacitor of one of claim 1-4, it is characterized in that aluminium foil is handled through surface corrosion in chromic acid mixture.
7. according to claim 5 or the 6 described surface treatment methods that are used for the collector electrode of ultracapacitor, it is characterized in that described chromic acid mixture comprises chromic acid or chromate, the concentrated sulfuric acid and water, its percentage by weight is: 4～10% chromic acid or chromate, 70～90% concentrated sulfuric acids, 5～15% water, total weight are 100.
8. according to claim 5 or the 6 described surface treatment methods that are used for the collector electrode of ultracapacitor, it is characterized in that described chromic acid mixture comprises chromic acid or chromate, the concentrated sulfuric acid and water, its percentage by weight is: 4～5% chromic acid or chromate, 85～95% concentrated sulfuric acids, 6～9% water, total weight are 100.
9. according to claim 5 or the 6 described surface treatment methods that are used for the collector electrode of ultracapacitor, it is characterized in that the collector body film is carried out surface corrosion through acid storage on coating machine handle, the processing time is 20-60 second, cleans through rinse bath then, last oven drying, rolling.
10. according to claim 5 or the 6 described surface treatment methods that are used for the collector electrode of ultracapacitor, it is characterized in that aluminium foil is carried out surface corrosion through acid storage on coating machine handle, the processing time is 30-60 second, cleans through rinse bath then, last oven drying, rolling.
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| CN2007101656376A CN101174509B (en) | 2007-10-25 | 2007-10-25 | Surface treating method of collecting electrode used in super capacitor |
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| CN2007101656376A CN101174509B (en) | 2007-10-25 | 2007-10-25 | Surface treating method of collecting electrode used in super capacitor |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101710538B (en) * | 2009-11-27 | 2011-03-30 | 锦州凯美能源有限公司 | Method for manufacturing long-life electrode of super capacitor |
| CN102769122A (en) * | 2012-07-31 | 2012-11-07 | 洛阳月星新能源科技有限公司 | Method for preparing electrode plate of lithium ion battery |
| CN103460322A (en) * | 2011-02-18 | 2013-12-18 | 住友电气工业株式会社 | Three-dimensional porous aluminum mesh for use in collector, electrode using same, nonaqueous-electrolyte battery using said electrode, and nonaqueous-liquid-electrolyte capacitor and lithium-ion capacitor |
| CN107768144A (en) * | 2017-10-09 | 2018-03-06 | 山西沃特海默新材料科技股份有限公司 | A kind of micropore metal material and its preparation method and application |
| CN108091883A (en) * | 2017-12-19 | 2018-05-29 | 桑德集团有限公司 | A kind of collector and preparation method and lithium battery for lithium ion battery |
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| CN111740116A (en) * | 2020-05-14 | 2020-10-02 | 超威电源集团有限公司 | Current collector of carbon-containing material felt electroplating coating and preparation method thereof |
| CN112106159A (en) * | 2018-06-11 | 2020-12-18 | 日本贵弥功株式会社 | Electrode body, electrolytic capacitor provided with electrode body, and method for manufacturing electrode body |
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| CN1034820C (en) * | 1994-12-01 | 1997-05-07 | 西安交通大学 | Etching Technique of anode Al foil of electrolysis capacitor |
| CN100547707C (en) * | 2004-10-25 | 2009-10-07 | 中国科学院电工研究所 | A kind of ultracapacitor and manufacture method thereof |
| CN100530464C (en) * | 2006-08-16 | 2009-08-19 | 锦州凯美能源有限公司 | Method for making electrode of ultra-capacitor |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101710538B (en) * | 2009-11-27 | 2011-03-30 | 锦州凯美能源有限公司 | Method for manufacturing long-life electrode of super capacitor |
| CN103460322A (en) * | 2011-02-18 | 2013-12-18 | 住友电气工业株式会社 | Three-dimensional porous aluminum mesh for use in collector, electrode using same, nonaqueous-electrolyte battery using said electrode, and nonaqueous-liquid-electrolyte capacitor and lithium-ion capacitor |
| CN102769122A (en) * | 2012-07-31 | 2012-11-07 | 洛阳月星新能源科技有限公司 | Method for preparing electrode plate of lithium ion battery |
| CN102769122B (en) * | 2012-07-31 | 2014-10-15 | 洛阳月星新能源科技有限公司 | Method for preparing electrode plate of lithium ion battery |
| CN107768144A (en) * | 2017-10-09 | 2018-03-06 | 山西沃特海默新材料科技股份有限公司 | A kind of micropore metal material and its preparation method and application |
| CN108091883A (en) * | 2017-12-19 | 2018-05-29 | 桑德集团有限公司 | A kind of collector and preparation method and lithium battery for lithium ion battery |
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| CN112106159B (en) * | 2018-06-11 | 2023-02-28 | 日本贵弥功株式会社 | Electrode body, electrolytic capacitor provided with electrode body, and method for manufacturing electrode body |
| CN108807017A (en) * | 2018-06-22 | 2018-11-13 | 宇东箔材科技南通有限公司 | The preparation method of compound dielectric film aluminum electrode foil |
| CN111740116A (en) * | 2020-05-14 | 2020-10-02 | 超威电源集团有限公司 | Current collector of carbon-containing material felt electroplating coating and preparation method thereof |
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