CN102983008A - Ultrahigh voltage anode foil corrosion method for aluminum electrolytic capacitor - Google Patents
Ultrahigh voltage anode foil corrosion method for aluminum electrolytic capacitor Download PDFInfo
- Publication number
- CN102983008A CN102983008A CN2012104932133A CN201210493213A CN102983008A CN 102983008 A CN102983008 A CN 102983008A CN 2012104932133 A CN2012104932133 A CN 2012104932133A CN 201210493213 A CN201210493213 A CN 201210493213A CN 102983008 A CN102983008 A CN 102983008A
- Authority
- CN
- China
- Prior art keywords
- anodic etching
- concentration
- etching method
- aluminium foil
- temperature
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- ing And Chemical Polishing (AREA)
Abstract
Disclosed is an ultrahigh voltage anode foil corrosion method for an aluminum electrolytic capacitor. The method comprises steps of conducting pretreatment, conducting first direct current electrochemical corrosion, conducting first middle treatment, conducting second direct current electrochemical corrosion, conducting second middle treatment, conducting third direct current electrochemical corrosion, and conducting post treatment. By the aid of the method, produced anode foil can meet ultrahigh voltage requirements of 800 V to 1000 V, and produced products have the advantages of being low in drain current, quick in boost time and good in mechanical performance.
Description
Technical field
The present invention relates to a kind of aluminum electrolysis capacitor anode foil and make field, especially a kind of aluminium electrolytic capacitor extra-high voltage anode foil caustic solution.
Background technology
The ultra-high voltage aluminum electrolytic capacitor is because its voltage is high, energy storage is high, discharge and recharge in the field such as fast and generate heat low extensive use Aero-Space, vehicle frequency transformer and industrial frequency conversion and the industry.The report that extra-high voltage anode foil corrosion or chemical synthesizing method were also arranged in the present at home industry, but its voltage mostly is in 700V, superhigh pressure also rarely has report or patent application greater than the anode foil corrosion technology of 800V, electronic material ultra-high voltage aluminum electrolytic capacitor anode aluminum foil production technology also is in blank basically at home, and researching and developing and be applied to the production of ultra-high voltage aluminum electrolytic capacitor anode aluminum foil has larger facilitation to filling the domestic gaps with industry development.
Summary of the invention
Little in order to solve the anode foils hole that has corrosion technology production now, change into rear easy obstruction, specific volume is low, can only be used in the mesohigh anode foils and produce, and can not carry out the defective that superhigh pressure is produced with anode foils, the invention provides a kind of aluminium electrolytic capacitor extra-high voltage anode foil caustic solution.
The present invention is achieved through the following technical solutions above-mentioned purpose: a kind of aluminium electrolytic capacitor extra-high voltage anode foil caustic solution comprises the steps: light paper tinsel → pre-treatment → one-level the anodic etching method → middle processing 1 → secondary the anodic etching method → 2 → three grades of the anodic etching method → reprocessings of middle processing.
Extra-high voltage anode foil of the present invention is Vt 〉=800V.
A, pre-treatment: aluminium foil is placed on 50～70 ℃, and concentration is to soak in 2.0～6.0wt% hydrochloric acid solution 60～150 seconds,
B, one-level the anodic etching method: it is 65～85 ℃ that above-mentioned aluminium foil through pre-treatment is put into temperature, concentration is to carry out the anodic etching method in 3～10wt% hydrochloric acid, 20～35wt% sulfuric acid and the 0.1～0.5wt% phosphoric acid mixed liquor, and current density is 0.25～0.50A/cm
2, electric weight is 20～30C/cm
2,
C, middle processing 1: it is 65～85 ℃ that above-mentioned aluminium foil through the one-level the anodic etching method is put into temperature, and concentration is dc electrolysis corrosion in 2～6wt% hydrochloric acid and the 0.02～0.25wt% ethanedioic acid mixed liquor, and current density is 0.02～0.10A/cm
2, electric weight is 3～6C/cm
2,
D, secondary the anodic etching method: it is 65～80 ℃ that the aluminium foil of processing in the above-mentioned process is put into temperature, concentration is the anodic etching method in the mixed liquor of 3～15wt% nitric acid and 0.005～0.05wt% polyacrylamide, and current density is 0.06～0.15A/cm
2, electric weight is 18～45C/cm
2,
E, middle processing 2: it is 65～85 ℃ that above-mentioned aluminium foil through the secondary the anodic etching method is put into temperature, and concentration is dc electrolysis corrosion in 2～6wt% hydrochloric acid and the 0.02～0.25wt% ethanedioic acid mixed liquor, and current density is 0.02～0.10A/cm
2, electric weight is 3～6C/cm
2,
F, three grades of the anodic etching methods: it is 65～80 ℃ that the aluminium foil of processing in the above-mentioned process is put into temperature, concentration is secondary the anodic etching method in the mixed liquor of 3～15wt% nitric acid and 0.005～0.05wt% polyacrylamide, and current density is 0.04～0.12A/cm
2, electric weight is 12～36C/cm
2
G, reprocessing: to put into temperature through the aluminium foil behind three grades of the anodic etching methods be 60～80 ℃ with above-mentioned, and concentration is to soak in 5～12wt% salpeter solution 30～90 seconds.
The pre-treatment pure hydrochloric acid aqueous solution of the present invention effect is impurity, the greasy dirt of removing aluminium foil surface, uses the surface to be in the state of activation, is conducive to the one-level the anodic etching method to the hole of sending out of aluminium foil surface, is conducive to form equally distributed initial erosion point.
One-level the anodic etching method main purpose of the present invention is to cause the erosion point at aluminium foil surface, and the pit that uses the erosion point to form size reasonable, be evenly distributed.Adopt hydrochloric acid, sulfuric acid to add the homogenizing that the phosphoric acid corrosion system more is conducive to aluminium foil surface erosion point homogenizing and pit size.
Middle processing intent of the present invention is further pit to be enlarged after pit forms, and reduces the oxide-film that the hole inwall forms, and is conducive to the expansion of follow-up pit.
Secondary of the present invention, three grades of the anodic etching methods, its objective is the further reaming after higher level's operation is finished, final purpose is to use the aperture of etch pit to satisfy superhigh pressure (Vt 〉=800V) requirement of formation energy-endowing, and higher specific volume and the mechanical performance of maintenance.
Reprocessing purpose of the present invention is to remove the metal impurities on the inner residual chloride ion of aluminium foil, surface, through aluminium foil surface residual chlorine ion≤1mg/m after the reprocessing
2
Outstanding advantages of the present invention is: through after the improvement to pre-treatment, one-level the anodic etching method, middle processing, secondary the anodic etching method technique, the anode foils of producing can not only satisfy the demand that still changes into to 1000V superhigh pressure greater than 800V, and the product of output has the mechanical performance that leakage current is low, pressure rising time is fast and good.
Embodiment
Below by embodiment technical scheme of the present invention is further described in detail.
Adopt aluminium electrolytic capacitor of the present invention extra-high voltage anode foil caustic solution, unified clear and paper tinsel corrodes and it is changed into processing to 116 μ m Japan.
Embodiment 1
Aluminium electrolytic capacitor of the present invention extra-high voltage anode foil caustic solution comprises the steps:
1, pre-treatment:
Aluminium foil is placed on 70 ℃, and concentration is to soak 150 seconds in the 2.0wt% hydrochloric acid solution, takes out.
2, one-level the anodic etching method:
It is 85 ℃ that above-mentioned aluminium foil through pre-treatment is put into temperature, and concentration is to carry out the anodic etching method in 3wt% hydrochloric acid, 20wt% sulfuric acid and the 0.1wt% phosphoric acid mixed liquor, and current density is 0.5A/cm
2, electric weight is 30C/cm
2
3, middle processing 1:
It is 65 ℃ that above-mentioned aluminium foil through the one-level the anodic etching method is put into temperature, and concentration is dc electrolysis corrosion in 3.5wt% hydrochloric acid and the 0.08wt% ethanedioic acid mixed liquor, and current density is 0.02A/cm
2, electric weight is 3C/cm
2
4, secondary the anodic etching method:
It is 65 ℃ that the aluminium foil of processing in the above-mentioned process is put into temperature, and concentration is the anodic etching method in the mixed liquor of 3wt% nitric acid and 0.005wt% polyacrylamide, and current density is 0.10A/cm
2, electric weight is 30C/cm
2
5, middle processing 2:
It is 85 ℃ that above-mentioned aluminium foil through the one-level the anodic etching method is put into temperature, and concentration is dc electrolysis corrosion in the 4wt% hydrochloric acid 0.08wt% ethanedioic acid mixed liquor, and current density is 0.02A/cm
2, electric weight is 3.0C/cm
2
6, three grades of the anodic etching methods:
It is 65 ℃ that the aluminium foil of processing in the above-mentioned process is put into temperature, and concentration is the anodic etching method in the mixed liquor of 6wt% nitric acid and 0.005wt% polyacrylamide, and current density is 0.04A/cm
2, electric weight is 12C/cm
2
7, reprocessing
To put into temperature through the aluminium foil behind three grades of the anodic etching methods be 80 ℃ with above-mentioned, and concentration is to soak 30 seconds in the 12wt% salpeter solution.
Embodiment 2
Aluminium electrolytic capacitor of the present invention comprises the steps: with another embodiment of extra-high voltage anode foil caustic solution
1, pre-treatment:
Aluminium foil is placed on 65 ℃, and concentration is to soak 120 seconds in the 3.5wt% hydrochloric acid solution, takes out.
2, one-level the anodic etching method:
It is 80 ℃ that above-mentioned aluminium foil through pre-treatment is put into temperature, and concentration is to carry out the anodic etching method in 5wt% hydrochloric acid, 15wt% sulfuric acid and the 0.25wt% phosphoric acid mixed liquor, and current density is 0.4A/cm
2, electric weight is 30C/cm
2
3, middle processing 1:
It is 70 ℃ that above-mentioned aluminium foil through the one-level the anodic etching method is put into temperature, and concentration is dc electrolysis corrosion in 2wt% hydrochloric acid and the 0.02wt% ethanedioic acid mixed liquor, and current density is 0.05A/cm
2, electric weight is 6C/cm
2
4, secondary the anodic etching method:
It is 65 ℃ that the aluminium foil of processing in the above-mentioned process is put into temperature, and concentration is the anodic etching method in the mixed liquor of 6wt% nitric acid and 0.015wt% polyacrylamide, and current density is 0.12A/cm
2, electric weight is 36C/cm
2
5, middle processing 2:
It is 70 ℃ that above-mentioned aluminium foil through the one-level the anodic etching method is put into temperature, and concentration is dc electrolysis corrosion in 2wt% hydrochloric acid and the 0.02wt% ethanedioic acid mixed liquor, and current density is 0.05A/cm
2, electric weight is 6C/cm
2
6, three grades of the anodic etching methods:
It is 70 ℃ that the aluminium foil of processing in the above-mentioned process is put into temperature, and concentration is the anodic etching method in the mixed liquor of 3wt% nitric acid and 0.015wt% polyacrylamide, and current density is 0.08A/cm
2, electric weight is 24C/cm
2
7, reprocessing
To put into temperature through the aluminium foil behind three grades of the anodic etching methods be 70 ℃ with above-mentioned, and concentration is to soak 60 seconds in the 10wt% salpeter solution.
Embodiment 3
Aluminium electrolytic capacitor of the present invention comprises the steps: with the another embodiment of extra-high voltage anode foil caustic solution
1, pre-treatment:
Aluminium foil is placed on 60 ℃, and concentration is to soak 120 seconds in the 5wt% hydrochloric acid solution, takes out.
2, one-level the anodic etching method:
It is 75 ℃ that above-mentioned aluminium foil through pre-treatment is put into temperature, and concentration is to carry out the anodic etching method in 7.5wt% hydrochloric acid, 35wt% sulfuric acid and the 0.35wt% phosphoric acid mixed liquor, and current density is 0.35A/cm
2, electric weight is 25C/cm
2
3, middle processing 1:
It is 78 ℃ that above-mentioned aluminium foil through the one-level the anodic etching method is put into temperature, and concentration is dc electrolysis corrosion in 2wt% hydrochloric acid and the 0.14wt% ethanedioic acid mixed liquor, and current density is 0.075A/cm
2, electric weight is 5C/cm
2
4, secondary the anodic etching method:
It is 75 ℃ that the aluminium foil of processing in the above-mentioned process is put into temperature, and concentration is the anodic etching method in the mixed liquor of 10wt% nitric acid and 0.03wt% polyacrylamide, and current density is 0.15A/cm
2, electric weight is 45C/cm
2
5, middle processing 2:
It is 78 ℃ that above-mentioned aluminium foil through the one-level the anodic etching method is put into temperature, and concentration is dc electrolysis corrosion in 2wt% hydrochloric acid and the 0.14wt% ethanedioic acid mixed liquor, and current density is 0.075A/cm
2, electric weight is 5C/cm
2
6, three grades of the anodic etching methods:
It is 75 ℃ that the aluminium foil of processing in the above-mentioned process is put into temperature, and concentration is the anodic etching method in the mixed liquor of 10wt% nitric acid and 0.03wt% polyacrylamide, and current density is 0.12A/cm
2, electric weight is 36C/cm
2
7, reprocessing
To put into temperature through the aluminium foil behind three grades of the anodic etching methods be 75 ℃ with above-mentioned, and concentration is to soak 75 seconds in the 7.5wt% salpeter solution.
Embodiment 4
Aluminium electrolytic capacitor of the present invention comprises the steps: with another embodiment of extra-high voltage anode foil caustic solution
1, pre-treatment:
Aluminium foil is placed on 50 ℃, and concentration is to soak 60 seconds in the 6wt% hydrochloric acid solution, takes out.
2, one-level the anodic etching method:
It is 65 ℃ that above-mentioned aluminium foil through pre-treatment is put into temperature, and concentration is to carry out the anodic etching method in 10wt% hydrochloric acid, 20wt% sulfuric acid and the 0.5wt% phosphoric acid mixed liquor, and current density is 0.25A/cm
2, electric weight is 20C/cm
2
3, middle processing 1:
It is 85 ℃ that above-mentioned aluminium foil through the one-level the anodic etching method is put into temperature, and concentration is dc electrolysis corrosion in 6wt% hydrochloric acid and the 0.25wt% ethanedioic acid mixed liquor, and current density is 0.10A/cm
2, electric weight is 6C/cm
2
4, secondary the anodic etching method:
It is 80 ℃ that the aluminium foil of processing in the above-mentioned process is put into temperature, and concentration is the anodic etching method in the mixed liquor of 15wt% nitric acid and 0.05wt% polyacrylamide, and current density is 0.06A/cm
2, electric weight is 18C/cm
2
5, middle processing 2:
It is 85 ℃ that above-mentioned aluminium foil through the one-level the anodic etching method is put into temperature, and concentration is dc electrolysis corrosion in 6wt% hydrochloric acid and the 0.25wt% ethanedioic acid mixed liquor, and current density is 0.10A/cm
2, electric weight is 6C/cm
2
6, three grades of the anodic etching methods:
It is 80 ℃ that the aluminium foil of processing in the above-mentioned process is put into temperature, and concentration is the anodic etching method in the mixed liquor of 15wt% nitric acid and 0.05wt% polyacrylamide, and current density is 0.08A/cm
2, electric weight is 24C/cm
2
7, reprocessing
To put into temperature through the aluminium foil behind three grades of the anodic etching methods be 60 ℃ with above-mentioned, and concentration is to soak 90 seconds in the 5wt% salpeter solution.
Wherein embodiment 1～4 aluminium foil changes into condition and is: 90 ℃ of 0.05A/ ㎝ of 10% boric acid
2Vfe is 820V or 900V.
Change into rear aluminium foil properties such as table 1
Can find out according to upper table performance feature: use technique of the present invention to stablize to make the Vt value to reach the above anode etched foil of 850V, wherein the extra-high voltage anode foil electrical property among embodiment 1 and the embodiment 3 etc. has all reached higher level.
Specific embodiment of the present invention is only to the theory for example of the present invention's spirit; under the R﹠D personnel of technical field various modifications that described specific embodiment is done or replenish or adopt similar mode to substitute; but the improvement not departing from spirit of the present invention and doing all belongs to protection scope of the present invention.
Claims (1)
1. aluminium electrolytic capacitor extra-high voltage anode foil caustic solution is characterized in that the method may further comprise the steps:
A, pre-treatment: aluminium foil is placed on 50～70 ℃, and concentration is to soak in 2.0～6.0wt% hydrochloric acid solution 60～150 seconds,
B, one-level the anodic etching method: it is 65～85 ℃ that above-mentioned aluminium foil through pre-treatment is put into temperature, concentration is to carry out the anodic etching method in 3～10wt% hydrochloric acid, 20～35wt% sulfuric acid and the 0.1～0.5wt% phosphoric acid mixed liquor, and current density is 0.25～0.50A/cm
2, electric weight is 20～30C/cm
2,
C, middle processing 1: it is 65～85 ℃ that above-mentioned aluminium foil through the one-level the anodic etching method is put into temperature, and concentration is dc electrolysis corrosion in 2～6wt% hydrochloric acid and the 0.02～0.25wt% ethanedioic acid mixed liquor, and current density is 0.02～0.10A/cm
2, electric weight is 3～6C/cm
2,
D, secondary the anodic etching method: it is 65～80 ℃ that the aluminium foil of processing in the above-mentioned process is put into temperature, concentration is the anodic etching method in the mixed liquor of 3～15wt% nitric acid and 0.005～0.05wt% polyacrylamide, and current density is 0.06～0.15A/cm
2, electric weight is 18～45C/cm
2,
E, middle processing 2: it is 65～85 ℃ that above-mentioned aluminium foil through the secondary the anodic etching method is put into temperature, and concentration is dc electrolysis corrosion in 2～6wt% hydrochloric acid and the 0.02～0.25wt% ethanedioic acid mixed liquor, and current density is 0.02～0.10A/cm
2, electric weight is 3～6C/cm
2,
F, three grades of the anodic etching methods: it is 65～80 ℃ that the aluminium foil of processing in the above-mentioned process is put into temperature, concentration is secondary the anodic etching method in the mixed liquor of 3～15wt% nitric acid and 0.005～0.05wt% polyacrylamide, and current density is 0.04～0.12A/cm
2, electric weight is 12～36C/cm
2,
G, reprocessing: to put into temperature through the aluminium foil behind three grades of the anodic etching methods be 60～80 ℃ with above-mentioned, and concentration is to soak in 5～12wt% salpeter solution 30～90 seconds.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104932133A CN102983008A (en) | 2012-11-28 | 2012-11-28 | Ultrahigh voltage anode foil corrosion method for aluminum electrolytic capacitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104932133A CN102983008A (en) | 2012-11-28 | 2012-11-28 | Ultrahigh voltage anode foil corrosion method for aluminum electrolytic capacitor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102983008A true CN102983008A (en) | 2013-03-20 |
Family
ID=47856901
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012104932133A Pending CN102983008A (en) | 2012-11-28 | 2012-11-28 | Ultrahigh voltage anode foil corrosion method for aluminum electrolytic capacitor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102983008A (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103280321A (en) * | 2013-05-16 | 2013-09-04 | 陶荣燕 | Preparation method of electrode foil |
| CN103280329A (en) * | 2013-05-25 | 2013-09-04 | 广西贺州市桂东电子科技有限责任公司 | Method for reaming and corroding high-medium-voltage electronic aluminum foil in two levels |
| CN104711663A (en) * | 2013-12-15 | 2015-06-17 | 江苏荣生电子有限公司 | Manufacturing method of medium and high voltage electrode foil employing seven-grade different pore-forming conditions |
| CN105097286A (en) * | 2015-09-01 | 2015-11-25 | 广西贺州市桂东电子科技有限责任公司 | Etching method of ultra-high-pressure energy storage material |
| CN105200509A (en) * | 2015-09-01 | 2015-12-30 | 广西贺州市桂东电子科技有限责任公司 | Cleaning method of electronic energy storage materials |
| CN105887177A (en) * | 2014-12-05 | 2016-08-24 | 江苏荣生电子有限公司 | Middle-high voltage electrode foil manufacturing method combining electrochemical corrosion with chemical corrosion |
| CN106098380A (en) * | 2016-05-26 | 2016-11-09 | 乳源县立东电子科技有限公司 | The hole shape control method of high-voltage anode foil secondary chambering |
| CN108376611A (en) * | 2017-12-29 | 2018-08-07 | 广西贺州市桂东电子科技有限责任公司 | A kind of production method of no foil ash medium-high pressure chemical foil |
| CN108754594A (en) * | 2018-05-10 | 2018-11-06 | 广西贺州市桂东电子科技有限责任公司 | A kind of method that mesohigh electric aluminum foil hair engaging aperture corrodes later half V cathodes power-up protection |
| CN112863879A (en) * | 2021-01-22 | 2021-05-28 | 广西贺州市桂东电子科技有限责任公司 | Process method for processing and thinning in medium-high voltage anode aluminum foil |
| CN113026087A (en) * | 2021-04-29 | 2021-06-25 | 南通海星电子股份有限公司 | Preparation method of nano-microporous structure aluminum electrode foil for automobile electronics |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101029413A (en) * | 2006-12-19 | 2007-09-05 | 东莞市东阳光电容器有限公司 | Production of medium-high voltage anode corrosive foil |
| CN101206956A (en) * | 2007-03-28 | 2008-06-25 | 横店集团东磁有限公司 | High-voltage high-specific-volume anode foil corrosion method |
| CN101275269A (en) * | 2008-04-22 | 2008-10-01 | 日丰（清远）电子有限公司 | Etching process for aluminum foil for electrolytic capacitor |
| CN102122576A (en) * | 2009-12-24 | 2011-07-13 | 松下电器产业株式会社 | Aluminum foil for aluminum electrolytic capacitor electrode and method for manufacturing the same |
| CN102723205A (en) * | 2012-06-30 | 2012-10-10 | 佛山科学技术学院 | Corrosion method of middle-high-voltage anode foil of aluminum electrolytic capacitor |
-
2012
- 2012-11-28 CN CN2012104932133A patent/CN102983008A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101029413A (en) * | 2006-12-19 | 2007-09-05 | 东莞市东阳光电容器有限公司 | Production of medium-high voltage anode corrosive foil |
| CN101206956A (en) * | 2007-03-28 | 2008-06-25 | 横店集团东磁有限公司 | High-voltage high-specific-volume anode foil corrosion method |
| CN101275269A (en) * | 2008-04-22 | 2008-10-01 | 日丰（清远）电子有限公司 | Etching process for aluminum foil for electrolytic capacitor |
| CN102122576A (en) * | 2009-12-24 | 2011-07-13 | 松下电器产业株式会社 | Aluminum foil for aluminum electrolytic capacitor electrode and method for manufacturing the same |
| CN102723205A (en) * | 2012-06-30 | 2012-10-10 | 佛山科学技术学院 | Corrosion method of middle-high-voltage anode foil of aluminum electrolytic capacitor |
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103280321A (en) * | 2013-05-16 | 2013-09-04 | 陶荣燕 | Preparation method of electrode foil |
| CN103280329A (en) * | 2013-05-25 | 2013-09-04 | 广西贺州市桂东电子科技有限责任公司 | Method for reaming and corroding high-medium-voltage electronic aluminum foil in two levels |
| CN103280329B (en) * | 2013-05-25 | 2015-11-18 | 广西贺州市桂东电子科技有限责任公司 | The method of mesohigh electric aluminum foil two-stage reaming corrosion |
| CN104711663A (en) * | 2013-12-15 | 2015-06-17 | 江苏荣生电子有限公司 | Manufacturing method of medium and high voltage electrode foil employing seven-grade different pore-forming conditions |
| CN105887177A (en) * | 2014-12-05 | 2016-08-24 | 江苏荣生电子有限公司 | Middle-high voltage electrode foil manufacturing method combining electrochemical corrosion with chemical corrosion |
| CN105097286B (en) * | 2015-09-01 | 2017-10-31 | 广西贺州市桂东电子科技有限责任公司 | A kind of caustic solution of super-pressure energy storage material |
| CN105200509A (en) * | 2015-09-01 | 2015-12-30 | 广西贺州市桂东电子科技有限责任公司 | Cleaning method of electronic energy storage materials |
| CN105097286A (en) * | 2015-09-01 | 2015-11-25 | 广西贺州市桂东电子科技有限责任公司 | Etching method of ultra-high-pressure energy storage material |
| CN105200509B (en) * | 2015-09-01 | 2018-04-10 | 广西贺州市桂东电子科技有限责任公司 | A kind of cleaning method of electron stored energy material |
| CN106098380A (en) * | 2016-05-26 | 2016-11-09 | 乳源县立东电子科技有限公司 | The hole shape control method of high-voltage anode foil secondary chambering |
| CN108376611A (en) * | 2017-12-29 | 2018-08-07 | 广西贺州市桂东电子科技有限责任公司 | A kind of production method of no foil ash medium-high pressure chemical foil |
| CN108754594A (en) * | 2018-05-10 | 2018-11-06 | 广西贺州市桂东电子科技有限责任公司 | A kind of method that mesohigh electric aluminum foil hair engaging aperture corrodes later half V cathodes power-up protection |
| CN112863879A (en) * | 2021-01-22 | 2021-05-28 | 广西贺州市桂东电子科技有限责任公司 | Process method for processing and thinning in medium-high voltage anode aluminum foil |
| CN112863879B (en) * | 2021-01-22 | 2022-09-30 | 广西贺州市桂东电子科技有限责任公司 | Process method for processing and thinning in medium-high voltage anode aluminum foil |
| CN113026087A (en) * | 2021-04-29 | 2021-06-25 | 南通海星电子股份有限公司 | Preparation method of nano-microporous structure aluminum electrode foil for automobile electronics |
| CN113026087B (en) * | 2021-04-29 | 2021-08-10 | 南通海星电子股份有限公司 | Preparation method of nano-microporous structure aluminum electrode foil for automobile electronics |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102983008A (en) | Ultrahigh voltage anode foil corrosion method for aluminum electrolytic capacitor | |
| CN101483103B (en) | Corrosion method for aluminum electrolysis capacitor anode foil | |
| CN100559527C (en) | High-voltage high-specific-volume anode foil corrosion method | |
| CN105097286B (en) | A kind of caustic solution of super-pressure energy storage material | |
| CN101425390B (en) | Medium high voltage anode aluminum foil corrosion method | |
| CN108486645B (en) | Corrosion method of low-voltage electrode foil of surface mount type aluminum electrolytic capacitor | |
| CN100587126C (en) | Method for erosion of supervoltage high specific volume anode foil | |
| CN101950688A (en) | Method for manufacturing medium and high-voltage anode aluminum foil for aluminum electrolytic capacitor | |
| CN102723205A (en) | Corrosion method of middle-high-voltage anode foil of aluminum electrolytic capacitor | |
| CN103243369A (en) | Formation technique of medium/high-voltage anode aluminum foil for enhancing aluminum electrolytic capacitance | |
| JP2014229891A (en) | Surface coating method of high purity collector for high output secondary battery having unetched part and electric double layer | |
| CN102426930A (en) | Corrosion method of high-voltage low-specific-volume anode foil | |
| CN102094231A (en) | Process for corroding anode foil for intermediate and high voltage aluminum electrolytic capacitor | |
| CN105200509A (en) | Cleaning method of electronic energy storage materials | |
| CN101964256A (en) | Method for manufacturing medium and high-voltage anodic aluminum foil | |
| CN104630871B (en) | A kind of etching process method of low pressure hard Fabrication of High Specific Capacitance aluminum electric pole foil | |
| CN103774205A (en) | Secondary pure-chemical erosion reaming method for medium-high-voltage anode aluminum-foil | |
| KR20140136220A (en) | A method of a secondary battery and collector by electric etching | |
| CN104480520A (en) | Manufacturing method of producing high-purity cathode foil by virtue of electrochemical corrosion | |
| CN100442406C (en) | Etching technique of hard foil | |
| CN101029411A (en) | Electrochemical corrosive process of anode aluminum foil | |
| KR20110000236A (en) | A method of a secondary battery and collector by electric etching | |
| KR100889488B1 (en) | Manufacturing method of etchant based on alcl3 and hydrochloric acid electrolyte using ac electrolytic etching | |
| CN106409514A (en) | Corrosion method for ultra-high-voltage and high-specific-capacity positive electrode corrosion foil | |
| WO2016192648A1 (en) | Method for preparing metal magnesium |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130320 |