CN1366096A - Two-stage manufacturing method of electrode foil for medium-high voltage aluminum electrolytic capacitor - Google Patents
Two-stage manufacturing method of electrode foil for medium-high voltage aluminum electrolytic capacitor Download PDFInfo
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- CN1366096A CN1366096A CN 01108061 CN01108061A CN1366096A CN 1366096 A CN1366096 A CN 1366096A CN 01108061 CN01108061 CN 01108061 CN 01108061 A CN01108061 A CN 01108061A CN 1366096 A CN1366096 A CN 1366096A
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- Prior art keywords
- minutes
- electrolytic capacitor
- condition
- high voltage
- aluminum electrolytic
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- 239000011888 foil Substances 0.000 title claims abstract description 17
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title claims abstract description 15
- 229910052782 aluminium Inorganic materials 0.000 title claims abstract description 15
- 239000003990 capacitor Substances 0.000 title claims abstract description 15
- 238000004519 manufacturing process Methods 0.000 title description 4
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 claims abstract description 21
- BDJRBEYXGGNYIS-UHFFFAOYSA-N nonanedioic acid Chemical compound OC(=O)CCCCCCCC(O)=O BDJRBEYXGGNYIS-UHFFFAOYSA-N 0.000 claims abstract description 18
- 238000000034 method Methods 0.000 claims abstract description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 11
- KRKNYBCHXYNGOX-UHFFFAOYSA-K Citrate Chemical compound [O-]C(=O)CC(O)(CC([O-])=O)C([O-])=O KRKNYBCHXYNGOX-UHFFFAOYSA-K 0.000 claims abstract description 9
- BKIMMITUMNQMOS-UHFFFAOYSA-N nonane Chemical compound CCCCCCCCC BKIMMITUMNQMOS-UHFFFAOYSA-N 0.000 claims description 32
- 239000007864 aqueous solution Substances 0.000 claims description 21
- 229940067597 azelate Drugs 0.000 claims description 16
- 239000005030 aluminium foil Substances 0.000 claims description 7
- 238000007598 dipping method Methods 0.000 claims description 7
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 claims description 2
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 claims description 2
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 claims description 2
- 229910052700 potassium Inorganic materials 0.000 claims description 2
- 239000011591 potassium Substances 0.000 claims description 2
- 239000001508 potassium citrate Substances 0.000 claims description 2
- QEEAPRPFLLJWCF-UHFFFAOYSA-K potassium citrate (anhydrous) Chemical compound [K+].[K+].[K+].[O-]C(=O)CC(O)(CC([O-])=O)C([O-])=O QEEAPRPFLLJWCF-UHFFFAOYSA-K 0.000 claims description 2
- 229910052708 sodium Inorganic materials 0.000 claims description 2
- 239000011734 sodium Substances 0.000 claims description 2
- 239000001509 sodium citrate Substances 0.000 claims description 2
- YWYZEGXAUVWDED-UHFFFAOYSA-N triammonium citrate Chemical compound [NH4+].[NH4+].[NH4+].[O-]C(=O)CC(O)(CC([O-])=O)C([O-])=O YWYZEGXAUVWDED-UHFFFAOYSA-N 0.000 claims description 2
- 235000015870 tripotassium citrate Nutrition 0.000 claims description 2
- HRXKRNGNAMMEHJ-UHFFFAOYSA-K trisodium citrate Chemical compound [Na+].[Na+].[Na+].[O-]C(=O)CC(O)(CC([O-])=O)C([O-])=O HRXKRNGNAMMEHJ-UHFFFAOYSA-K 0.000 claims description 2
- 229940038773 trisodium citrate Drugs 0.000 claims description 2
- 230000015572 biosynthetic process Effects 0.000 abstract 2
- 150000001536 azelaic acids Chemical class 0.000 abstract 1
- 238000001035 drying Methods 0.000 abstract 1
- KGBXLFKZBHKPEV-UHFFFAOYSA-N boric acid Chemical compound OB(O)O KGBXLFKZBHKPEV-UHFFFAOYSA-N 0.000 description 3
- 239000004327 boric acid Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- OTRAYOBSWCVTIN-UHFFFAOYSA-N OB(O)O.OB(O)O.OB(O)O.OB(O)O.OB(O)O.N.N.N.N.N.N.N.N.N.N.N.N.N.N.N Chemical compound OB(O)O.OB(O)O.OB(O)O.OB(O)O.OB(O)O.N.N.N.N.N.N.N.N.N.N.N.N.N.N.N OTRAYOBSWCVTIN-UHFFFAOYSA-N 0.000 description 1
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- Fixed Capacitors And Capacitor Manufacturing Machines (AREA)
Abstract
A two-stage method for preparing electrode foil for middle-high voltage aluminum electrolytic capacitor includes immersing corroded aluminum foil in water at 90-100 deg.C for 1-15 min, taking out, adding into 0.1-10% citric acid and 0.1-5% citrate water solution, and treating at 70-95 deg.C and 20mA/(cm)2280V, first-stage reacting for 20 minutes, taking out, placing in 0.1-6.5% azelaic acid and 0.1-6% azelaic acid salt water solution, at 70-95 deg.C and 20mA/(cm)2Carrying out secondary formation for 25 minutes under the condition of 450V, taking out, standing in the air for 3-6 minutes, carrying out secondary formation for 20 minutes, taking out and drying. The invention has the advantage of higher capacity per unit area.
Description
The present invention relates to the manufacture method of capacitor electric pole foil, be particularly useful for the manufacture method of medium-high voltage aluminum electrolytic capacitor with electrode foil.
Before this, medium-high voltage aluminum electrolytic capacitor is such with the manufacture method of electrode foil: will be through the corrosive aluminium foil, dipping is 10 minutes in 95 ℃-100 ℃ pure water, take out in the aqueous solution be placed on 7% boric acid, 0.9% ammonium pentaborate, and be 20mA/ (cm) at 85 ℃, current density
2, voltage is that the condition next stage of 280V changed into 20 minutes; Use pure water rinsing then; Again in the aqueous solution of 7% boric acid, be 20mA/ (cm) at 85 ℃, current density
2, voltage is that secondary changed into 25 minutes under the condition of 450V; Take out the back and carried out pyroprocessing three minutes at 450 ℃; Again in the aqueous solution of 7% boric acid, be 20mA/ (cm) after the pyroprocessing at 85 ℃, current density
2, voltage is to change under the condition of 450V to handle 20 minutes; Take out oven dry at last.Its weak point is that the capacity of unit surface is lower.
The objective of the invention is to provide the two-stage system making method of a kind of medium-high voltage aluminum electrolytic capacitor with electrode foil in order to overcome above-mentioned weak point, the electrode foil of Zhi Zaoing in this way, the capacity of unit surface is higher.
Description of the present invention is as follows, the medium-high voltage aluminum electrolytic capacitor two-stage system making method of electrode foil: will be through the aluminium foil of corrosive more than 99.99%, dipping is 1-15 minute in 90-100 ℃ pure water, taking-up is placed in the mixed aqueous solution of Citrate trianion of the citric acid of 0.1-10% and 0.1-5%, is 20mA/ (cm) at 70-95 ℃, current density
2, voltage is under the condition of 280V, one-level changed into 15-25 minute; Taking-up is placed in the mixed aqueous solution of azelate of the nonane diacid of 0.1-6.5% and 0.1-6%, is 20mA/ (cm) at 70-95 ℃, current density
2, voltage is under the condition of 450V, secondary changed into 20-30 minute; Taking out the back placed 3-6 minute in air; Placing the mixed aqueous solution of the azelate of the nonane diacid of 0.1-6.5% and 0.1-6% again, is 20mA/ (cm) at 70-95 ℃, current density
2, voltage is under the condition of 450V, changed into 15-25 minute; Take out oven dry at last.
Citrate trianion is Trisodium Citrate, Tripotassium Citrate, ammonium citrate, and azelate is a nonane diacid sodium, nonane diacid potassium, ammonium azelate.
Advantage of the present invention: the medium-high voltage aluminum electrolytic capacitor of the present invention two-stage system making method of electrode foil, the capacity of unit surface is higher.
The technology of the present invention and prior art contrast table
| Electrostatic capacity (%) | |
| Prior art | 100 |
| The technology of the present invention | 118-120 |
Embodiment 1: the medium-high voltage aluminum electrolytic capacitor two-stage system making method of electrode foil: will be through the aluminium foil of corrosive more than 99.99%, dipping is 10 minutes in 95 ℃ pure water, taking-up is placed in the mixed aqueous solution of Citrate trianion of 5% citric acid and 2.5%, is 20mA/ (cm) at 82 ℃, current density
2, voltage is under the condition of 280V, one-level changed into 20 minutes; Taking-up is placed in the mixed aqueous solution of azelate of 3% nonane diacid and 3%, is 20mA/ (cm) at 82 ℃, current density
2, voltage is under the condition of 450V, secondary changed into 25 minutes; Taking out the back placed 5 minutes in air; Placing the mixed aqueous solution of the azelate of 3% nonane diacid and 3% again, is 20mA/ (cm) at 82 ℃, current density
2, voltage is under the condition of 450V, changed into 20 minutes; Take out oven dry at last.
Embodiment 2: the medium-high voltage aluminum electrolytic capacitor two-stage system making method of electrode foil: will be through the aluminium foil of corrosive more than 99.99%, dipping is 1 minute in 90 ℃ pure water, taking-up is placed in the mixed aqueous solution of Citrate trianion of 0.1% citric acid and 0.1%, is 20mA/ (cm) at 70 ℃, current density
2, voltage is under the condition of 280V, one-level changed into 20 minutes; Taking-up is placed in the mixed aqueous solution of azelate of 0.1% nonane diacid and 0.1%, is 20mA/ (cm) at 70 ℃, current density
2, voltage is under the condition of 450V, secondary changed into 25 minutes; Taking out the back placed 5 minutes in air; Placing the mixed aqueous solution of the azelate of 0.1% nonane diacid and 0.1% again, is 20mA/ (cm) at 70 ℃, current density
2, voltage is under the condition of 450V, changed into 20 minutes; Take out oven dry at last.
Embodiment 3: the medium-high voltage aluminum electrolytic capacitor two-stage system making method of electrode foil: will be through the aluminium foil of corrosive more than 99.99%, dipping is 15 minutes in 100 ℃ pure water, taking-up is placed in the mixed aqueous solution of Citrate trianion of 10% citric acid and 5%, is 20mA/ (cm) at 95 ℃, current density
2, voltage is under the condition of 280V, one-level changed into 20 minutes; Taking-up is placed in the mixed aqueous solution of azelate of 6.5% nonane diacid and 6%, is 20mA/ (cm) at 95 ℃, current density
2, voltage is under the condition of 450V, secondary changed into 25 minutes; Taking out the back placed 6 minutes in air; Placing the mixed aqueous solution of the azelate of 6.5% nonane diacid and 6% again, is 20mA/ (cm) at 95 ℃, current density
2, voltage is under the condition of 450V, changed into 20 minutes; Take out oven dry at last.
Embodiment 4: the medium-high voltage aluminum electrolytic capacitor two-stage system making method of electrode foil: will be through the aluminium foil of corrosive more than 99.99%, dipping is 8 minutes in 93 ℃ pure water, taking-up is placed in the mixed aqueous solution of Citrate trianion of 0.2% citric acid and 4%, is 20mA/ (cm) at 75 ℃, current density
2, voltage is under the condition of 280V, one-level changed into 20 minutes; Taking-up is placed in the mixed aqueous solution of azelate of 4% nonane diacid and 2%, is 20mA/ (cm) at 90 ℃, current density
2, voltage is under the condition of 450V, secondary changed into 25 minutes; Taking out the back placed 4 minutes in air; Placing the mixed aqueous solution of the azelate of 6% nonane diacid and 1% again, is 20mA/ (cm) at 73 ℃, current density
2, voltage is under the condition of 450V, changed into 20 minutes; Take out oven dry at last.
Claims (2)
1, the medium-high voltage aluminum electrolytic capacitor two-stage system making method of electrode foil, it is characterized in that: will be through the aluminium foil of corrosive more than 99.99%, dipping is 1-15 minute in 90-100 ℃ pure water, taking-up is placed in the mixed aqueous solution of Citrate trianion of the citric acid of 0.1-10% and 0.1-5%, is 20mA/ (cm) at 70-95 ℃, current density
2, voltage is under the condition of 280V, one-level changed into 15-25 minute; Taking-up is placed in the mixed aqueous solution of azelate of the nonane diacid of 0.1-6.5% and 0.1-6%, is 20mA/ (cm) at 70-95 ℃, current density
2, voltage is under the condition of 450V, secondary changed into 20-30 minute; Taking out the back placed 3-6 minute in air; Placing the mixed aqueous solution of the azelate of the nonane diacid of 0.1-6.5% and 0.1-6% again, is 20mA/ (cm) at 70-95 ℃, current density
2, voltage is under the condition of 450V, changed into 15-25 minute; Take out oven dry at last.
2, the medium-high voltage aluminum electrolytic capacitor according to claim 1 two-stage system making method of electrode foil, it is characterized in that: Citrate trianion is Trisodium Citrate, Tripotassium Citrate, ammonium citrate, azelate is a nonane diacid sodium, nonane diacid potassium, ammonium azelate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01108061 CN1117184C (en) | 2001-01-19 | 2001-01-19 | Two-stage manufacturing method of electrode foil for medium-high voltage aluminum electrolytic capacitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01108061 CN1117184C (en) | 2001-01-19 | 2001-01-19 | Two-stage manufacturing method of electrode foil for medium-high voltage aluminum electrolytic capacitor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1366096A true CN1366096A (en) | 2002-08-28 |
| CN1117184C CN1117184C (en) | 2003-08-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01108061 Expired - Fee Related CN1117184C (en) | 2001-01-19 | 2001-01-19 | Two-stage manufacturing method of electrode foil for medium-high voltage aluminum electrolytic capacitor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1117184C (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1873865B (en) * | 2006-04-05 | 2010-12-22 | 江苏中联科技集团有限公司 | Manufacturing method for raising specific volume of electrode foil in use for aluminium electrolytic capacitor |
| CN103014808A (en) * | 2012-12-14 | 2013-04-03 | 中国计量学院 | Method for preparing aluminum alloy anodic oxidation film by tartaric acid anodic oxidation |
| CN103882506A (en) * | 2012-12-21 | 2014-06-25 | 广西贺州市桂东电子科技有限责任公司 | Additive for ultimate formation liquid of middle and high pressure formed foil and adding method thereof |
| CN107993846A (en) * | 2017-11-07 | 2018-05-04 | 佛山科学技术学院 | A kind of processing method for improving formed foil used for medium-high pressure aluminum electrolytic capacitor water resistance |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1892936B (en) * | 2006-04-05 | 2010-05-12 | 江苏中联科技集团有限公司 | Chemical synthesizing method of reducing electrode foil current-leakage for aluminium electrolysis capacitor |
-
2001
- 2001-01-19 CN CN 01108061 patent/CN1117184C/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1873865B (en) * | 2006-04-05 | 2010-12-22 | 江苏中联科技集团有限公司 | Manufacturing method for raising specific volume of electrode foil in use for aluminium electrolytic capacitor |
| CN103014808A (en) * | 2012-12-14 | 2013-04-03 | 中国计量学院 | Method for preparing aluminum alloy anodic oxidation film by tartaric acid anodic oxidation |
| CN103014808B (en) * | 2012-12-14 | 2015-07-29 | 中国计量学院 | The method of aluminium alloy anode oxide film is prepared with tartrate anodic oxidation |
| CN103882506A (en) * | 2012-12-21 | 2014-06-25 | 广西贺州市桂东电子科技有限责任公司 | Additive for ultimate formation liquid of middle and high pressure formed foil and adding method thereof |
| CN107993846A (en) * | 2017-11-07 | 2018-05-04 | 佛山科学技术学院 | A kind of processing method for improving formed foil used for medium-high pressure aluminum electrolytic capacitor water resistance |
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| Publication number | Publication date |
|---|---|
| CN1117184C (en) | 2003-08-06 |
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Granted publication date: 20030806 Termination date: 20100219 |