CN1117185C - Four-stage process for preparing electrode foil of middle-and high-voltage aluminium-electrolytic capacitor - Google Patents
Four-stage process for preparing electrode foil of middle-and high-voltage aluminium-electrolytic capacitor Download PDFInfo
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- CN1117185C CN1117185C CN 01108062 CN01108062A CN1117185C CN 1117185 C CN1117185 C CN 1117185C CN 01108062 CN01108062 CN 01108062 CN 01108062 A CN01108062 A CN 01108062A CN 1117185 C CN1117185 C CN 1117185C
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Abstract
The present invention relates to a four-stage manufacturing method of electrode foil for middle and high voltage aluminum-electrolytic capacitors, which comprises the following steps: the aluminum foil is soaked in water at 95 DEG C for 10 minutes, the aluminum foil is put into the water solution of 0.1 to 8% of citric acid and 0.1 to 5% of citric acid after the aluminum foil is taken out, the aluminum foil is atomized for 10 minutes under the conditions of 70 to 95 DEG C, 20 mA/(cm)<2> and 150 V, and the aluminum foil is washed by water after the aluminum foil is taken out; the aluminum foil is put into the water solution of 0.1 to 5% of azelaic acid and 0.1 to 5% of azelaic acid salt and is atomized for 10 minutes under the conditions of 85 DEG C, 20 mA/(cm)<2> and 300 V, the aluminum foil is put into the water solution equivalent to one-stage atomizing water solution and is atomized for 10 minutes under the conditions of 85 DEG C, 20 mA/(cm)<2> and 430 V, the aluminum foil is put into the water solution equivalent to two-stage atomizing water solution and is atomized for 10 minutes under the conditions of 85 DEG C, 20 mA/(cm)<2> and 530 V, the aluminum foil is taken out and stays in air for 5 minutes, the aluminum foil is put into the water solution equivalent to the two-stage atomizing water solution and is atomized for 10 minutes under the conditions of 85 DEG C, 20mA/(cm)<2> and 530 V, and then the aluminum foil is taken out and dried. The present invention has the advantages of high production efficiency and good storage performance.
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 99.99% aluminium foil through corrosive, purity, dipping is 10 minutes in 95-100 ℃ pure water, taking-up is placed in the fumaric aqueous solution of 5% boric acid and 0.1%, is 20mA/ (cm) at 85 ℃, current density
2, voltage is under the condition of 200V, one-level changed into 18 minutes; Placing 5% boric acid and 0.1% anti-butylene aqueous acid again, is 20mA/ (cm) at 85 ℃, current density
2, voltage is under the condition of 430V, secondary changed into 18 minutes; Placing 5% the boric acid and 0.1 the fumaric aqueous solution again, is 20mA/ (cm) at 85 ℃, current density
2, voltage is that the condition of 530V changed into 30 minutes for following three grades; Carry out 500 ℃ high-temperature heat treatment 3-4 minute after the taking-up; And then place the aqueous solution of the ammonium pentaborate of 5% boric acid and 0.1%, be 20mA/ (cm) at 85 ℃, current density
2, voltage is under the condition of 530V, changed into 11 minutes; Took out high-temperature heat treatment 3-40 minute that afterwards repeats at 500 ℃; Placing the aqueous solution of the ammonium pentaborate of 5% boric acid and 0.1% again, is 20mA/ (cm) at 85 ℃, current density
2, voltage is under the condition of 530V, changes into 10-12 minute, takes out oven dry at last.The manufacture method of kind electrode paper tinsel, production efficiency is low, poor storage performance.
The four-stage manufacturing method that the objective of the invention is to overcome above-mentioned weak point and provide medium-high voltage aluminum electrolytic capacitor to use electrode foil, the production efficiency height, shelf characteric is good.
Of the present invention theing contents are as follows, medium-high voltage aluminum electrolytic capacitor is with the four-stage manufacturing method of electrode foil: the excessive erosion of learning from else's experience, purity is 99.99% aluminium foil, dipping is 1-15 minute in 90-100 ℃ pure water, taking-up is placed in the aqueous solution of Citrate trianion of the citric acid of 0.1-8% and 0.1-5%, is 20mA/ (cm) at 70-95 ℃, current density
2, voltage is under the condition of 150V, one-level changed into 8-15 minute; Take out back water flushing; Placing the aqueous solution of the azelate of the nonane diacid of 0.1-5% and 0.1-5% again, is 20mA/ (cm) at 70-95 ℃, current density
2, voltage is under the condition of 300V, secondary changed into 8-15 minute; Placing the aqueous solution of the azelate of the nonane diacid of 0.1-5% and 0.1-5% again, is 20mA/ (cm) at 70-95 ℃, current density
2, voltage is under the condition of 430V, three grades changed into 8-15 minute; Placing the aqueous solution of the azelate of the nonane diacid of 0.1-5% and 0.1-5% again, is 20mA/ (cm) at 70-95 ℃, current density
2, voltage is under the condition of 530V, level Four changed into 8-15 minute; Take out electrolytic bath, in air, be detained 3-6 minute; Placing the aqueous solution of the azelate of 0.1-5% nonane diacid and 0.1-5% again, is 20mA/ (cm) at 70-95 ℃, current density
2, voltage is under the condition of 530V, changed into 8-15 minute; Take out oven dry at last.
Azelate is nonane diacid potassium, nonane diacid sodium, ammonium azelate; Citrate trianion is Tripotassium Citrate, Trisodium Citrate, ammonium citrate.
Advantage of the present invention: the medium-high voltage aluminum electrolytic capacitor electrode foil of making in this way, the production efficiency height, shelf characteric is good.
The electrode foil performance comparison table that the technology of the present invention and prior art are made
| Production efficiency | Storage property (with storage under the condition 60 days) | ||
| Volume change C After/C Former | Change T pressure rising time After/T Former | ||
| Prior art | 1 | 89％ | 163％ |
| The technology of the present invention | 1.7-3 doubly | 100％ | 102％ |
Embodiment 1, medium-high voltage aluminum electrolytic capacitor is with the four-stage manufacturing method of electrode foil: the excessive erosion of learning from else's experience, purity is 99.99% aluminium foil, dipping is 1 minute in 90 ℃ pure water, taking-up is placed in the 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 150V, one-level changed into 8 minutes; Take out back water flushing; Placing the 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 300V, secondary changed into 8 minutes; Placing the 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 430V, three grades changed into 8 minutes; Placing the 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 530V, level Four changed into 8 minutes; Take out electrolytic bath, in air, be detained 3 minutes; Placing the 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 530V, changed into 8 minutes; Take out oven dry at last.
Embodiment 2, medium-high voltage aluminum electrolytic capacitor is with the four-stage manufacturing method of electrode foil: the excessive erosion of learning from else's experience, purity is 99.99% aluminium foil, dipping is 15 minutes in 100 ℃ pure water, taking-up is placed in the aqueous solution of Citrate trianion of 8% citric acid and 5%, is 20mA/ (cm) at 95 ℃, current density
2, voltage is under the condition of 150V, one-level changed into 15 minutes; Take out back water flushing; Placing the aqueous solution of the azelate of 5% nonane diacid and 5% again, is 20mA/ (cm) at 95 ℃, current density
2, voltage is under the condition of 300V, secondary changed into 15 minutes; Placing the aqueous solution of the azelate of 5% nonane diacid and 5% again, is 20mA/ (cm) at 95 ℃, current density
2, voltage is under the condition of 430V, three grades changed into 15 minutes; Placing the aqueous solution of the azelate of 5% nonane diacid and 5% again, is 20mA/ (cm) at 95 ℃, current density
2, voltage is under the condition of 530V, level Four changed into 15 minutes; Take out electrolytic bath, in air, be detained 6 minutes; Placing the aqueous solution of the azelate of 5% nonane diacid and 5% again, is 20mA/ (cm) at 95 ℃, current density
2, voltage is under the condition of 530V, changed into 15 minutes; Take out oven dry at last.
Embodiment 3, medium-high voltage aluminum electrolytic capacitor is with the four-stage manufacturing method of electrode foil: the excessive erosion of learning from else's experience, purity is 99.99% aluminium foil, dipping is 7 minutes in 95 ℃ pure water, taking-up is placed in the aqueous solution of Citrate trianion of 4% citric acid and 3%, is 20mA/ (cm) at 80 ℃, current density
2, voltage is under the condition of 150V, one-level changed into 7 minutes; Take out back water flushing; Placing the aqueous solution of the azelate of 3% nonane diacid and 3% again, is 20mA/ (cm) at 80 ℃, current density
2, voltage is under the condition of 300V, secondary changed into 7 minutes; Placing the aqueous solution of the azelate of 3% nonane diacid and 3% again, is 20mA/ (cm) at 80 ℃, current density
2, voltage is under the condition of 430V, three grades changed into 7 minutes; Placing the aqueous solution of the azelate of 3% nonane diacid and 3% again, is 20mA/ (cm) at 80 ℃, current density
2, voltage is under the condition of 530V, level Four changed into 7 minutes; Take out electrolytic bath, in air, be detained 5 minutes; Placing the aqueous solution of the azelate of 3% nonane diacid and 3% again, is 20mA/ (cm) at 80 ℃, current density
2, voltage is under the condition of 530V, changed into 7 minutes; Take out oven dry at last.
Embodiment 4, medium-high voltage aluminum electrolytic capacitor is with the four-stage manufacturing method of electrode foil: the excessive erosion of learning from else's experience, purity is 99.99% aluminium foil, dipping is 8 minutes in 95 ℃ pure water, taking-up is placed in the aqueous solution of Citrate trianion of 1% citric acid and 4.5%, is 20mA/ (cm) at 75 ℃, current density
2, voltage is under the condition of 150V, one-level changed into 9 minutes; Take out back water flushing; Placing the aqueous solution of the azelate of 2% nonane diacid and 3.5% again, is 20mA/ (cm) at 80 ℃, current density
2, voltage is under the condition of 300V, secondary changed into 11 minutes; Placing the aqueous solution of the azelate of 3% nonane diacid and 2.5% again, is 20mA/ (cm) at 85 ℃, current density
2, voltage is under the condition of 430V, three grades changed into 13 minutes; Placing the aqueous solution of the azelate of 3.5% nonane diacid and 2% again, is 20mA/ (cm) at 83 ℃, current density
2, voltage is under the condition of 530V, level Four changed into 14 minutes; Take out electrolytic bath, in air, be detained 4 minutes; Placing the aqueous solution of the azelate of 4% nonane diacid and 1.5% again, is 20mA/ (cm) at 90 ℃, current density
2, voltage is under the condition of 530V, changed into 14 minutes; Take out oven dry at last.
Embodiment 5, medium-high voltage aluminum electrolytic capacitor is with the four-stage manufacturing method of electrode foil: the excessive erosion of learning from else's experience, purity is 99.99% aluminium foil, dipping is 5 minutes in 94 ℃ pure water, taking-up is placed in the aqueous solution of Citrate trianion of 7% citric acid and 2%, is 20mA/ (cm) at 90 ℃, current density
2, voltage is under the condition of 150V, one-level changed into 14 minutes; Take out back water flushing; Placing the aqueous solution of the azelate of 4.5% nonane diacid and 1% again, is 20mA/ (cm) at 85 ℃, current density
2, voltage is under the condition of 300V, secondary changed into 13 minutes; Placing the aqueous solution of the azelate of 3% nonane diacid and 2% again, is 20mA/ (cm) at 85 ℃, current density
2, voltage is under the condition of 430V, three grades changed into 11 minutes; Placing the aqueous solution of the azelate of 2.5% nonane diacid and 2.6% again, is 20mA/ (cm) at 83 ℃, current density
2, voltage is under the condition of 530V, level Four changed into 9 minutes; Take out electrolytic bath, in air, be detained 5 minutes; Placing the aqueous solution of the azelate of 2% nonane diacid and 4% again, is 20mA/ (cm) at 75 ℃, current density
2, voltage is under the condition of 530V, changed into 10 minutes; Take out oven dry at last.
Claims (2)
1, the medium-high voltage aluminum electrolytic capacitor four-stage manufacturing method of electrode foil, it is characterized in that: the excessive erosion of learning from else's experience, purity is 99.99% aluminium foil, dipping is 1-5 minute in 90-100 ℃ pure water, taking-up is placed in the aqueous solution of Citrate trianion of the citric acid of 0.1-8% and 0.1-5%, is 20mA/cm at 70-95 ℃, current density
2, voltage is under the condition of 150V, one-level changed into 8-15 minute; Take out back water flushing; Placing the aqueous solution of the azelate of the nonane diacid of 0.1-5% and 0.1-5% again, is 20mA/cm at 70-95 ℃, current density
2, voltage is under the condition of 300V, secondary changed into 8-15 minute; Placing the aqueous solution of the azelate of the nonane diacid of 0.1-5% and 0.1-5% again, is 20mA/cm at 70-95 ℃, current density
2, voltage is under the condition of 430V, three grades changed into 8-15 minute; Placing the aqueous solution of the azelate of the nonane diacid of 0.1-5% and 0.1-5% again, is 20mA/cm at 70-95 ℃, current density
2, voltage is under the condition of 530V, level Four changed into 8-15 minute; Take out electrolytic bath, in air, be detained 3-6 minute; Placing the aqueous solution of the azelate of 0.1-5% nonane diacid and 0.1-5% again, is 20mA/cm at 70-95 ℃, current density
2, voltage is under the condition of 530V, changed into 8-15 minute; Take out oven dry at last.
2, the medium-high voltage aluminum electrolytic capacitor according to claim 1 four-stage manufacturing method of electrode foil, it is characterized in that: azelate is nonane diacid potassium, nonane diacid sodium, ammonium azelate; Citrate trianion is Tripotassium Citrate, Trisodium Citrate, ammonium citrate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01108062 CN1117185C (en) | 2001-01-19 | 2001-01-19 | Four-stage process for preparing electrode foil of middle-and high-voltage aluminium-electrolytic capacitor |
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| Application Number | Priority Date | Filing Date | Title |
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| CN 01108062 CN1117185C (en) | 2001-01-19 | 2001-01-19 | Four-stage process for preparing electrode foil of middle-and high-voltage aluminium-electrolytic capacitor |
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| CN1366097A CN1366097A (en) | 2002-08-28 |
| CN1117185C true CN1117185C (en) | 2003-08-06 |
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| CN 01108062 Expired - Fee Related CN1117185C (en) | 2001-01-19 | 2001-01-19 | Four-stage process for preparing electrode foil of middle-and high-voltage aluminium-electrolytic capacitor |
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Cited By (2)
| 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 |
| CN105369320A (en) * | 2014-08-13 | 2016-03-02 | 东莞市东阳光电容器有限公司 | Electrode foil forming agent and manufacturing method for high-pressure formed foil |
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| CN101154508B (en) * | 2006-09-26 | 2010-06-16 | 横店集团东磁有限公司 | Four-stage manufacturing method for electrode foil of high-pressure aluminum electrolytic capacitor |
| CN101748462A (en) * | 2010-03-20 | 2010-06-23 | 宜都东阳光化成箔有限公司 | Formation method of anode aluminum foil for high-voltage aluminum electrolytic capacitor |
| CN101819886B (en) * | 2010-04-27 | 2011-09-07 | 四川中雅科技有限公司 | Method for manufacturing electrode foil capable of preventing current jump during formation |
| CN101826397B (en) * | 2010-04-27 | 2011-09-07 | 四川中雅科技有限公司 | Five-stage manufacturing method of electrode foil for medium-high voltage aluminium electrolytic capacitor |
| 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 |
| CN103741187B (en) * | 2014-01-06 | 2016-08-24 | 广西贺州市桂东电子科技有限责任公司 | A kind of mesohigh electric aluminum foil chemical conversion produces power supply solution and using method thereof |
| CN107502937B (en) * | 2017-08-10 | 2019-05-14 | 佛山科学技术学院 | Reduce the chemical synthesizing method of low-pressure chemical synthesis foil leakage current |
| CN108511195A (en) * | 2018-03-19 | 2018-09-07 | 南通海星电子股份有限公司 | A kind of post-processing approach improving middle-high voltage electrode foil coating mass |
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2001
- 2001-01-19 CN CN 01108062 patent/CN1117185C/en not_active Expired - Fee Related
Cited By (2)
| 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 |
| CN105369320A (en) * | 2014-08-13 | 2016-03-02 | 东莞市东阳光电容器有限公司 | Electrode foil forming agent and manufacturing method for high-pressure formed foil |
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| CN1366097A (en) | 2002-08-28 |
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