CN103526237A - Production method of electrolytic copper foil applied to high-end super capacitor - Google Patents
Production method of electrolytic copper foil applied to high-end super capacitor Download PDFInfo
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- CN103526237A CN103526237A CN201310468717.4A CN201310468717A CN103526237A CN 103526237 A CN103526237 A CN 103526237A CN 201310468717 A CN201310468717 A CN 201310468717A CN 103526237 A CN103526237 A CN 103526237A
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Abstract
The invention discloses a production method of an electrolytic copper foil applied to a high-end super capacitor. The method includes that a mechanical grinding method and an organic brightening additive method cooperate to produce the electrolytic copper foil applied to the high-end super capacitor. The two side brightness of the produced electrolytic copper foil applied to the high-end super capacitor reaches 11 level Ra 0.1 [mu]m, crystallization organization of a copper atomic crystal is tight and uniform, the distribution is neat, the thickness uniformity deviation is less than 0.12 [mu]m, the surface high-brightness Ra is less than 0.1 [mu]m, the tensile strength is in the range of 380-460 N/mm<2>, and the elongation rate is greater than 5.0%.
Description
Technical field
The present invention relates to a kind of production method that is applied to high-end ultracapacitor electrolysis Copper Foil, relate in particular to a kind of production method of producing the highlighted electrolytic copper foil of alternative rolled copper foil.
Background technology
Ultracapacitor is maximized favourable factors and minimized unfavourable ones with its excellent characteristic, can partly or entirely substitute traditional chemical cell for the traction power source of vehicle and start the energy, and having than traditional chemical cell purposes more widely.In China, promote the use of ultracapacitor, can reduce consumption of petroleum, alleviate the dependence to petroleum import, be conducive to national Oil Safety; Effectively solve city tail gas pollution and lead-acid cell pollution problem; Be conducive to solve the problem of the cold-starting of automobile.
All the time, high-end ultracapacitor is produced required Copper Foil and is mainly rolled copper foil, electrolytic copper foil is not used always, because the alligatoring face of rolled copper foil is low, two sides high brightness is high, tensile strength, the physicalies such as unit elongation are all higher than electrolytic copper foil, my company's independent research a kind of novel highlighted electrolytic copper foil that is applied to high-end ultracapacitor, this electrolytic copper foil two sides high brightness is much larger than rolled copper foil, by being used in conjunction with organic additive, make its tensile strength, unit elongation has all reached the use standard of ultracapacitor, solved the problem that high-end ultracapacitor producer is only applicable to rolled copper foil, this highlighted electrolytic copper foil processing price is far below rolled copper foil price, fill up rolled copper foil simultaneously and can not make thickness lower than the market vacancy of 35um Copper Foil.
Summary of the invention
The object of this invention is to provide a kind of method of mechanical grinding method and organic brightener of utilizing and coordinate a kind of production method that is applied to high-end ultracapacitor electrolysis Copper Foil of production.
The object of the invention is to be achieved through the following technical solutions:
(1) adopt import Novel hot hardening resin grinding miller, from 240 order to 3000 orders, titanium roller is carried out to rubbing down and cause 11 grades of Ra0.1um of light, to improve the compact crystallization of copper atom in electrolytic process, improve the light face luminance brightness of electrolytic copper foil simultaneously.
(2) electrolytic solution adopts 99.9% bright copper cash, carries out aerobic reaction make pure copper-bath with analytical pure sulfuric acid, and solution adopts RO reverse osmosis membrane plasma water to dilute.
(3) in electrolytic solution, copper content is that 70-90g/L, sulfuric acid content are 110-120g/L;
(4) electrolytic solution is heated to 55-60 degree, the organic bright mixed additive that electrolytic solution adds comprises: PN (50-80ppm), SP (30-40ppm), AEO (10-20ppm), MISS (10-15ppm), PEG10000 (30-70ppm) and low molecular peptide glue, this organic bright mixed additive flow is 300～600mL/min, after mixing thoroughly, electrolytic solution enters anode slot;
(5) electrolytic solution is under electric field action, and current density is 75-85A/dm2, and positively charged ion is shifted to negative electrode, and negatively charged ion is shifted to anode, carries out electrochemical reaction, makes the novel highlighted electrolytic copper foil that is applied to super capacitor.
The described ultra-fine 3000 object thermosetting resin grinding miller polishing titanium burnishing-in brightness of employing import in step (1), glossiness reaches 11 grades of Ra0.1um.
The low molecular peptide glue that the described molecular weight that adds 10 mass parts in step (4) in the electrolytic solution of 1000 parts by volume is 1000-10000.
In production practice, find, in the situation that other working condition is identical, use import thermosetting resin grinding miller to grind titanium roller, the titanium roll surface of light, compact crystallization, thereby make to contact titanium roll surface electrolytic copper foil light face luminance brightness and reach Ra0.1um, add organic bright mixture PN, SP, AEO, MISS, PEG, adopting organic brightening agent cooperation that hair side crest is flattened with brightening agent coordinates, become the electrolytic copper foil of high brightness, with low molecular polypeptide glue (molecular weight 1000～10000), replace particulate state gelatin, by peptide chain, the amino acid whose high protein polymkeric substance (molecular weight is 60000～70000) that CO-NH is cross-linked is as additive, be proved, can significantly improve the tension of bright electrolytic copper foil, unit elongation physicals.
Object of the present invention is used ultra-fine thermosetting resin grinding miller to grind titanium roller top layer exactly, and use brightening agent PN, SP, AEO, MISS, PEG to be mixed with the low molecular peptide glue that organic additive adds molecular weight 1000-10000, to produce the highlighted electrolytic copper foil of physicals optimum, particularly preferably resolve the contradiction of highlighted cleanliness factor, tensile strength and the unit elongation on two sides.
Beneficial effect of the present invention: produce a kind of novel highlighted electrolytic copper foil two sides sidelight brightness that is applied to high-end ultracapacitor by the present invention and reach 11 grades of Ra0.1um, copper atom crystal structure tissue tight is even, distribute neat, even thickness sexual deviation is less than 0.12um, table is less than 0.1um at high brightness degree Ra, tensile strength 380-460N/mm2, unit elongation is greater than 5.0%.
Embodiment
Electrolytic titanium roller grinding plant is to adopt grinding machine reconstruction, assurance grinding miller is synchronizeed and is carried out rubbing down with titanium roller, smooth to reach rubbing down uniformity coefficient and cleanliness factor, rubbing down process adopts the deionized water wet grinding of RO reverse osmosis membrane processing, and adopt import thermosetting resin grinding miller to grind one by one from 240 order to 3000 order modes, reach roll surface light cleanliness factor degree even, be polished to luminance brightness and reach 11 grades of Ra0.1um.
Electrolytic solution preparation is exactly to adopt 99.9% bright copper cash, analytical pure sulfuric acid and RO reverse osmosis deionized water to add in copper dissolving tank, in temperature, be under the constant temperature of 55 degree, in copper dissolving tank, pass into continuously oxygen, through oxidation reaction process, finally obtain copper sulfate solution.In Copper Foil production process, electrolytic solution all recycles, and constantly from cathode titanium roller, separates out electrolytic copper, thereby constantly consumes the copper in electrolytic solution, and supplement by the continuous molten copper of copper dissolving tank the copper consuming in electrolytic solution, make the copper content in electrolytic solution remain balance.In electrolytic solution preparation process, not only to guarantee that electrolytic solution continuously circulates, also want the timely speed of adjusting molten copper according to electrolytic copper turnout to stablize and control bath composition with this, the composition of electrolytic solution: copper content is 80g/L, sulfuric acid content is 115g/L, electrolyte temperature is 58 degree, highlighted electrolytic copper foil adopts organic blending additive to comprise: PN, SP, AEO, MISS, PEG and low molecular peptide glue, wherein in the electrolytic solution of 1000 parts by volume, add organic bright mixture PN, SP, AEO, MISS, PEG and 10 mass molecular weight are that 1000-10000 low molecular peptide glue mixes and dilutes, stir and be heated to after 50 degree by heating tube, with cell liquor pump, evenly add to note and enter anode slot with electrolytic solution, this organic blending additive flow is 300～600mL/min, electrolytic solution is under electric field action, current density is 80A/dm2, positively charged ion is shifted to negative electrode, negatively charged ion is shifted to anode, carry out electrochemical reaction, and by organic additive, change the structure of copper atom crystallization, make a kind of novel highlighted, the high tensile of high-end high-grade ultracapacitor, electrolytic copper foil of high-elongation of being applied to.
Produce thus, through senior electrical condenser experimental data, detect: be applied to the novel highlighted electrolytic copper foil of high-end ultracapacitor, surface roughness Ra is 0.1um, even thickness sexual deviation 0.12um, tensile strength 460N/mm2, unit elongation 7.5%.Especially highlighted cleanliness factor degree, filled up the technical bottleneck that electrolytic copper foil cannot be used at high end capacitor, the brightness of pleasing both parties of highlighted electrolytic copper foil is high, light face is clean and tidy, avoided super capacitor short circuit, discharge and recharge the problems such as unstable, wherein two indexs of tensile strength and unit elongation have all reached the use standard of high-grade ultracapacitor, this highlighted cleanliness factor degree, high tensile, the electrolytic copper foil of high-elongation preferably resolves the technical bottleneck that high-end ultracapacitor cannot be used electrolytic copper foil to exist aborning, fill up rolled copper foil and can not make thickness lower than the market vacancy of 35um Copper Foil, reduced the production cost of high-end ultracapacitor, what assurance had been produced carries out smoothly, increased the competitiveness in the international market of high-end super capacitor simultaneously, reduced production cost.
Claims (3)
1. a production method that is applied to high-end ultracapacitor electrolysis Copper Foil, is characterized in that comprising the following steps:
(1) adopt import Novel hot hardening resin grinding miller, from 240 order to 3000 orders, titanium roller is carried out to rubbing down and cause 11 grades of Ra0.1um of light, to improve the compact crystallization of copper atom in electrolytic process, improve the light face luminance brightness of electrolytic copper foil simultaneously.
(2) electrolytic solution adopts 99.9% bright copper cash, carries out aerobic reaction make pure copper-bath with analytical pure sulfuric acid, and solution adopts RO reverse osmosis membrane plasma water to dilute.
(3) in electrolytic solution, copper content is that 70-90g/L, sulfuric acid content are 110 1 120g/L;
(4) electrolytic solution is heated to 55-60 degree, the organic bright mixed additive that electrolytic solution adds comprises: PN (50-80ppm), SP (30-40ppm), AEO (10-20ppm), MISS (10-15ppm), PEG10000 (30-70ppm) and low molecular peptide glue, this organic bright mixed additive flow is 300～600mL/min, after mixing thoroughly, electrolytic solution enters anode slot;
(5) electrolytic solution is under electric field action, and current density is 75-85A/dm2, and positively charged ion is shifted to negative electrode, and negatively charged ion is shifted to anode, carries out electrochemical reaction, makes the novel highlighted electrolytic copper foil that is applied to super capacitor.
2. a kind of production method that is applied to high-end ultracapacitor electrolysis Copper Foil according to claim 1, it is characterized in that the described ultra-fine 3000 object thermosetting resin grinding miller polishing titanium burnishing-in brightness of import that adopt in step (1), glossiness reaches 11 grades of Ra0.1um.
3. be applied to a production method for high-end ultracapacitor electrolysis Copper Foil, the low molecular peptide glue that the molecular weight that adds 10 mass parts described in it is characterized in that in step (4) in the electrolytic solution of 1000 parts by volume is 1000-10000.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310468717.4A CN103526237A (en) | 2013-09-25 | 2013-09-25 | Production method of electrolytic copper foil applied to high-end super capacitor |
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| CN201310468717.4A CN103526237A (en) | 2013-09-25 | 2013-09-25 | Production method of electrolytic copper foil applied to high-end super capacitor |
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| CN103526237A true CN103526237A (en) | 2014-01-22 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106939432A (en) * | 2017-04-25 | 2017-07-11 | 东强（连州）铜箔有限公司 | A kind of compound additive and its process for producing of think gauge Copper Foil |
| CN107099823A (en) * | 2017-04-25 | 2017-08-29 | 佛冈建滔实业有限公司 | Compound additive and its depositing operation for electrolytic copper foil |
| CN109750329A (en) * | 2018-08-06 | 2019-05-14 | 新疆中亚新材料科技有限公司 | A kind of production method of ventilative cellular electrolytic copper foil |
-
2013
- 2013-09-25 CN CN201310468717.4A patent/CN103526237A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106939432A (en) * | 2017-04-25 | 2017-07-11 | 东强（连州）铜箔有限公司 | A kind of compound additive and its process for producing of think gauge Copper Foil |
| CN107099823A (en) * | 2017-04-25 | 2017-08-29 | 佛冈建滔实业有限公司 | Compound additive and its depositing operation for electrolytic copper foil |
| CN107099823B (en) * | 2017-04-25 | 2018-03-23 | 佛冈建滔实业有限公司 | Compound additive and its depositing operation for electrolytic copper foil |
| CN106939432B (en) * | 2017-04-25 | 2018-05-08 | 东强（连州）铜箔有限公司 | A kind of compound additive and its process for producing of think gauge copper foil |
| CN109750329A (en) * | 2018-08-06 | 2019-05-14 | 新疆中亚新材料科技有限公司 | A kind of production method of ventilative cellular electrolytic copper foil |
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| C06 | Publication | ||
| PB01 | Publication | ||
| CB02 | Change of applicant information |
Address after: 276300 Shandong Province Economic Development Zone Linyi city Yinan County Shandong sourcekey Copper Co. Ltd. Applicant after: Shandong Jinshengyuan Electronic Materials Co., Ltd. Address before: 276300 Shandong Province Economic Development Zone Linyi city Yinan County Shandong sourcekey Copper Co. Ltd. Applicant before: Jinshengyuan Copper Co., Ltd. |
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| COR | Change of bibliographic data | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140122 |
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| WD01 | Invention patent application deemed withdrawn after publication |