CN102592849A - Manufacturing method for solid electrolyte aluminum electrolytic capacitor - Google Patents
Manufacturing method for solid electrolyte aluminum electrolytic capacitor Download PDFInfo
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- CN102592849A CN102592849A CN2012100871107A CN201210087110A CN102592849A CN 102592849 A CN102592849 A CN 102592849A CN 2012100871107 A CN2012100871107 A CN 2012100871107A CN 201210087110 A CN201210087110 A CN 201210087110A CN 102592849 A CN102592849 A CN 102592849A
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Abstract
The invention discloses a manufacturing method for a solid electrolyte aluminum electrolytic capacitor, which includes the following steps: 1 electrolytic paper is placed between an anode formation aluminum foil and a cathode formation aluminum foil to be wound into a core bag, the cathode foil faces outwards and wraps up the electrolytic paper, and high-temperature adhesive tape is then used for surrounding and fastening in adhesive mode; 2 an adhesive cover used for sealing is installed on the core bag; 3 the core bag is immersed into formation liquid for formation repair treatment; 4 the formation repair treated core bag is carbonated; 5 step 3 and step 4 are repeated two to ten times; 6 the core bag is immersed into the formation liquid again for the formation repair treatment; and the core bag is respectively placed in a monomer and an oxidizing agent to be impregnated, and then heated, polymerized, filled in an aluminum shell, sealed and produced to be a product after aging treatment. A polymer solid capacitor produced by using the manufacturing method has the advantages of being good in characteristics in terms of capacity, loss, leakage current and series equivalence resistance and being long in service life. Therefore, the product has the advantages of being small in performance dispersion ratio and high in acceptability.
Description
Technical field
The present invention relates to the manufacturing approach of electrolytic capacitor, specifically, relate to a kind of manufacturing approach of solid electrolyte aluminium electrolytic capacitor.
Background technology
The liquid electrolytic capacitor that solid electrolytic capacitor is compared common, its electrical property is very outstanding, has low ESR (ESR), high anti-ripple current, long service life, steady performance.Along with the continuous upgrading of electronic product, improving constantly of its function and performance, also increasingly high to the high frequency characteristics requirement of capacitor, people are through the ESR of various different approaches reduction solid electrolytic capacitors, to satisfy the high frequency characteristics of capacitor.
And solid electrolytic capacitor industry ubiquity homogeneity of product is relatively poor now, the problem that qualification rate is lower.
Summary of the invention
The present invention has overcome shortcoming of the prior art, and a kind of manufacturing approach of solid electrolyte aluminium electrolytic capacitor is provided, and this kind manufacturing approach can obtain the better products consistency, and is prone to obtain high product qualification rate, better quality.
In order to solve the problems of the technologies described above, the present invention realizes through following technical scheme:
A kind of manufacturing approach of solid electrolyte aluminium electrolytic capacitor may further comprise the steps,
1) get involved electrolytic paper and be wound into the core bag being anodizing between aluminium foil and the Cathode Foil, and Cathode Foil is outwardly and encase electrolytic paper, fixing with high temperature gummed tape again around clinging;
The Jiao Gai that 2) will seal usefulness is installed on core and wraps;
3) the core bag immerses to change into and carries out repair process in the liquid;
4) the core bag after the repair process is carried out carbonization treatment;
5) 3 and 4 step is repeated 2-10 time;
6) the core bag immerses once more to change into and carries out repair process in the liquid;
7) the core bag is put into monomer respectively, oxidant carries out impregnation, heated polymerizable, and the aluminum hull of packing into seals, and burin-in process is processed product.
Further; The core bag of said step 3 immerses to change into and carries out repair process in the liquid and comprise: the positive pole of power supply is inserted a pallet, and pallet links to each other with an iron bar, and the positive pole of core bag links to each other with iron bar; Power cathode with change into liquid phase and connect, power up the back cathode foil and in changing into liquid, repair.
Further, the positive pole of the said core bag mode that adopts that links to each other with iron bar is: the core bag anode guide pin that Jiao Gai will be housed is welded on the iron bar.
Further, said high temperature gummed tape is polyimide adhesive tape or polyphenylene sulfide adhesive tape, and viscose glue is siliceous high temperature resistant adhesive tape, and high temperature gummed tape prevents to get loose at course of processing SMIS bag.
Further, said Jiao Gai is butyl rubber high-temperature plastic lid.
Further, said carbonization treatment is: put into baking oven or place the enterprising capable heat treatment of heating panel.
Further, the said liquid that changes into is that phosphoric acid system changes into liquid, boric acid system changes into liquid or ammonium adipate system changes into liquid, most preferably is boric acid system and changes into liquid.
Further, said monomer is the thiophene-based material, and said oxidant is p-methyl benzenesulfonic acid and salt thereof.
Preferably, said monomer is the basic dioxygen thiophene of 3,4 two supports, and said oxidant is a p-methyl benzenesulfonic acid iron.
Preferably, the step number of repetition 5 times of 3 and 4 in the said step 5.
Compared with prior art, the invention has the beneficial effects as follows:
Through explained hereafter solid capacitor of the present invention, the core winding is got the back negative electrode outwardly, reduces the consumption of electrolytic paper; Thereby having reduced after the electrolytic paper carbonization material back core bag that sheds fluffs; Core bag external beam after having rolled up simultaneously has polyphenylene sulfide or polyimide adhesive tape, and this adhesive tape temperature tolerance is fine, and the coefficient of expansion of temperature is also little; Guaranteed to get loose and loose excessively phenomenon after the core bag is handled, guaranteed consistency of product.In addition the core bag is welded on the iron bar; Can precisely control the height and their consistency that change into the liquid liquid level when changing into; Thereby guarantee the consistency of repairing effect, the liquid level when also guaranteeing monomer and oxidant impregnation simultaneously can be controlled accurately, improves core and comprises the consistency of soaking.Have the consistent extraordinary characteristic of capacity, loss, leakage current, series equivalent resistance and life of product with the polymer solid capacitor of this explained hereafter, thus product to have a performance dispersion ratio little, the characteristic that qualification rate is high.
Description of drawings
Accompanying drawing is used to provide further understanding of the present invention, is used to explain the present invention with embodiments of the invention, be not construed as limiting the invention, in the accompanying drawings:
Fig. 1 is that core bag of the present invention is welded in the sketch map on the iron bar.
Wherein, 1---the core bag;
2---iron bar.
Embodiment
Below in conjunction with accompanying drawing the preferred embodiments of the present invention are described, should be appreciated that preferred embodiment described herein only is used for explanation and explains the present invention, and be not used in qualification the present invention.
Embodiment 1:
A kind of copolymer solid electrolyte aluminium electrolytic capacitor, specification are 6.3V680 μ F, and production quantity is 5000, and the step of its making is following:
1, through core bag up-coiler the VF value is wound into core bag 1 for 12V is anodizing to aluminium foil, Cathode Foil, electrolytic paper, electrolytic paper is between being anodizing between aluminium foil and the cathode aluminum foil, and the back Cathode Foil of reeling encases core bag 1;
2, Jiao Gai is installed on the core bag 1, and the anode guide pin of core bag 1 is welded on the iron bar 2 with the mode like Fig. 1, guarantee the consistency of welding and assembling height; The positive pole of power supply is inserted a pallet, and pallet links to each other with iron bar 2, and power cathode links to each other with core bag 1 negative pole; The material of pallet is the material of conduction; Can be stainless steel, irony, or copper etc.;
3, the core bag 1 of winding is put into changed into liquid dipping 10 minutes, formation voltage is 6.3V, and changing into liquid is that ammonium adipate changes into liquid, and it is that oxidation film layer to aluminium foil surface is repaired that core bag 1 changes into;
4, core bag 1 being placed temperature is that 280 ℃ high temperature oven carries out carbonization treatment, and the time of carbonization treatment is 10 minutes, and carbonization treatment is that the electrolytic paper in the core bag 1 is carried out carbonization treatment;
5, repeat the step gather 3 with step 4, core bag 1 is changed into and carbonization treatment after repeating 5 times;
6, core bag 1 is put into oxidant respectively and monomer carries out impregnation, carry out polymerization reaction after the impregnation, in capacitor core bag 1, generate conducting polymer, monomer is the basic dioxygen thiophene of 3,4 two supports, and oxidant is a p-methyl benzenesulfonic acid iron;
7, the core bag 1 after the polymerization reaction is packed in the aluminum hull, seal behind the crimping, isolated with external environment, prevent product moisture absorption or contaminated back performance depreciation;
8, packaged product is carried out burin-in process with 6.3V, worn out and replied 2 little back tests.
Table 1 is the foregoing description in the capacitance under the 120Hz frequency, loss, the measured value of ESR under the 100KHz frequency, applies 6.3V voltage measurement leakage current.
Test result is following:
| Sequence number | Capacity (uf) | Loss (100%) | ESR(mΩ) | Leakage current (uA/1 minute) |
| Specification | -15％--18％ | 6.0 | 8.0 | 856.8 |
| 1 | 736.0 | 1.45 | 4.5 | 20 |
| 2 | 750.3 | 1.27 | 4.6 | 23 |
| 3 | 737.0 | 1.31 | 4.3 | 30 |
| 4 | 740.5 | 1.30 | 4.4 | 45 |
| 5 | 740.6 | 1.23 | 4.3 | 34 |
| 6 | 737.3 | 1.43 | 4.5 | 35 |
| 7 | 725.6 | 1.37 | 4.5 | 27 |
| 8 | 735.0 | 1.25 | 4.6 | 28 |
| 9 | 740.1 | 1.28 | 4.7 | 32 |
| 10 | 736.5 | 1.26 | 4.6 | 35 |
| Maximum | 750.3 | 1.45 | 4.7 | 45 |
| Minimum value | 725.6 | 1.23 | 4.3 | 20 |
| Mean value | 737.89 | 1.315 | 4.5 | 30.9 |
Optional 10 measured value of table 1 6.3V680 μ F copolymer solid electrolyte aluminium electrolytic capacitor.
The number that wherein manufactures a finished product is that the yields after 5001 sortings is 99.48%.
Embodiment 2:
A kind of polymer solid aluminum electrolytic capacitor, specification are 2.5V820 μ F, and production quantity is 5000, and the step of its making is following:
1, through core bag up-coiler the VF value is wound into core bag 1 for 8V is anodizing to aluminium foil, Cathode Foil, electrolytic paper, electrolytic paper is between being anodizing between aluminium foil and the negative electrode formed aluminum foil, and the back Cathode Foil of reeling encases core bag 1;
2, Jiao Gai is installed on the core bag 1, and the mode of core bag 1 like Fig. 1 is welded on the iron bar 2, guarantee the consistency of welding and assembling height, the positive pole of power supply is inserted a pallet, pallet links to each other with iron bar 2, and power cathode links to each other with core bag 1 negative pole;
3, the core bag 1 of winding is put into changed into liquid dipping 10 minutes, formation voltage is 6V, and changing into liquid is that ammonium adipate changes into liquid, and it is that oxidation film layer to aluminium foil surface is repaired that core bag 1 changes into:
4, core bag 1 being placed temperature is that 280 ℃ high temperature oven carries out carbonization treatment, and the time of carbonization treatment is 10 minutes, and carbonization treatment is that the electrolytic paper in the core bag 1 is carried out carbonization treatment;
5, repeat the step gather 3 with step 4, core bag 1 is changed into and carbonization treatment after repeating 6 times;
6, core bag 1 is put into oxidant respectively and monomer carries out impregnation, carry out polymerization reaction after the impregnation, in capacitor core bag 1, generate conducting polymer;
7, core bag 1 after the polymerization reaction is packed in the aluminum hull, seal behind the crimping, isolated with external environment, prevent product moisture absorption or contaminated back performance depreciation;
8, packaged product is carried out burin-in process with 2.5V, worn out and replied test after 2 hours.
Table 2 is the foregoing description in the capacitance under the 120Hz frequency, loss, measured value and the leakage current measuring value of ESR under the 100KHz frequency.
Test result is following:
| Sequence number | Capacity (uf) | Loss (100%) | ESR(mΩ) | Leakage current (uA/1 minute) |
| Standard | -15％--18％ | ?6.0 | 8.0 | 410 |
| 1 | 921.5 | ?1.40 | 4.2 | 12 |
| 2 | 915.8 | ?1.47 | 4.2 | 9 |
| 3 | 905.8 | ?1.33 | 4.3 | 5 |
| 4 | 908.3 | ?1.31 | 4.2 | 9 |
| 5 | 914.3 | ?1.46 | 4.3 | 7 |
| 6 | 911.5 | ?1.47 | 4.8 | 18 |
| 7 | 909.7 | ?1.27 | 4.4 | 6 |
| 8 | 918.4 | ?1.34 | 4.5 | 4 |
| 9 | 917.0 | ?1.33 | 4.2 | 10 |
| 10 | 907.9 | ?1.33 | 4.5 | 11 |
| Maximum | 921.5 | ?1.47 | 4.8 | 18 |
| Minimum value | 905.8 | ?1.27 | 4.2 | 4 |
| Mean value | 913.02 | ?1.371 | 4.36 | 9.1 |
Optional 10 measured value of table 2 2.5V820 μ F copolymer solid electrolyte aluminium electrolytic capacitor.
The number that wherein manufactures a finished product is that the yields after 4995 sortings is 99.59%.
What should explain at last is: more than be merely the preferred embodiments of the present invention; Be not limited to the present invention; Although with reference to embodiment the present invention has been carried out detailed explanation, for a person skilled in the art, it still can be made amendment to the technical scheme that aforementioned each embodiment put down in writing; Perhaps part technical characterictic wherein is equal to replacement; But all within spirit of the present invention and principle, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. the manufacturing approach of a solid electrolyte aluminium electrolytic capacitor is characterized in that: may further comprise the steps,
1) get involved electrolytic paper and be wound into the core bag being anodizing between aluminium foil and the Cathode Foil, and Cathode Foil is outwardly and encase electrolytic paper, fixing with high temperature gummed tape again around clinging;
The Jiao Gai that 2) will seal usefulness is installed on core and wraps;
3) the core bag immerses to change into and changes into repair process in the liquid;
4) will change into core bag carbonization treatment after the repair process;
5) 3 and 4 step is repeated 2-10 time;
6) the core bag immerses once more to change into and changes into repair process in the liquid;
7) the core bag is put into monomer respectively, oxidant carries out impregnation, heated polymerizable, and the aluminum hull of packing into seals, and burin-in process is processed product.
2. the manufacturing approach of solid electrolyte aluminium electrolytic capacitor according to claim 1; It is characterized in that: the core bag of said step 3 immerses to change into and changes into repair process in the liquid and comprise: the positive pole of power supply is inserted a pallet; Pallet links to each other with an iron bar; The positive pole of core bag links to each other with iron bar, power cathode with change into liquid phase and connect, power up the back positive pole and change into paper tinsel and in changing into liquid, repair.
3. the manufacturing approach of solid electrolyte aluminium electrolytic capacitor according to claim 2 is characterized in that: the positive pole of the said core bag mode that adopts that links to each other with iron bar is: the core bag anode guide pin that Jiao Gai will be housed is welded on the iron bar.
4. the manufacturing approach of solid electrolyte aluminium electrolytic capacitor according to claim 1 is characterized in that: said high temperature gummed tape is polyimide adhesive tape or polyphenylene sulfide adhesive tape.
5. the manufacturing approach of solid electrolyte aluminium electrolytic capacitor according to claim 1 is characterized in that: said Jiao Gai is butyl rubber high-temperature plastic lid.
6. the manufacturing approach of solid electrolyte aluminium electrolytic capacitor according to claim 1 is characterized in that: said carbonization treatment is: put into baking oven or place the enterprising capable heat treatment of heating panel.
7. the manufacturing approach of solid electrolyte aluminium electrolytic capacitor according to claim 1 is characterized in that: the said liquid that changes into is that phosphoric acid system changes into liquid, boric acid system changes into liquid or ammonium adipate system changes into liquid.
8. the manufacturing approach of solid electrolyte aluminium electrolytic capacitor according to claim 1 is characterized in that: said monomer is the thiophene-based material, and said oxidant is p-methyl benzenesulfonic acid and salt thereof.
9. the manufacturing approach of solid electrolyte aluminium electrolytic capacitor according to claim 8 is characterized in that: said monomer is the basic dioxygen thiophene of 3,4 two supports, and said oxidant is a p-methyl benzenesulfonic acid iron.
10. the manufacturing approach of solid electrolyte aluminium electrolytic capacitor according to claim 1 is characterized in that: the step number of repetition of 3 and 4 in the said step 55 times.
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102779654A (en) * | 2012-07-25 | 2012-11-14 | 肇庆绿宝石电子有限公司 | Manufacture method of solid electrolyte aluminum electrolytic capacitor |
| CN102856077A (en) * | 2012-09-21 | 2013-01-02 | 深圳市柏瑞凯电子科技有限公司 | Manufacture method of solid electrolytic capacitor |
| CN103268821A (en) * | 2013-05-08 | 2013-08-28 | 佛山市三水日明电子有限公司 | Solid electrolyte aluminum electrolytic capacitor and manufacturing method thereof |
| CN104966619A (en) * | 2015-07-22 | 2015-10-07 | 湖南艾华集团股份有限公司 | Solid electrolytic capacitor of high-ripple-resistant winding type, and production method |
| CN109786137A (en) * | 2019-01-31 | 2019-05-21 | 深圳新宙邦科技股份有限公司 | A kind of solid-state capacitor preparation method |
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| CN101510469A (en) * | 2009-01-13 | 2009-08-19 | 珠海华冠电容器有限公司 | Method for preparing solid aluminum electrolytic capacitor |
| CN201402747Y (en) * | 2009-04-22 | 2010-02-10 | 珠海华冠电容器有限公司 | Carbonization device for solid aluminum electrolytic capacitor |
| TW201007790A (en) * | 2008-06-18 | 2010-02-16 | Sanyo Electric Co | Electrolytic condenser |
| CN101916671A (en) * | 2010-07-01 | 2010-12-15 | 南通江海电容器股份有限公司 | Preparation method of solid electrolytic capacitor capable of reducing ESR and enhancing electrostatic capacitance |
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2012
- 2012-03-28 CN CN2012100871107A patent/CN102592849A/en active Pending
Patent Citations (4)
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| TW201007790A (en) * | 2008-06-18 | 2010-02-16 | Sanyo Electric Co | Electrolytic condenser |
| CN101510469A (en) * | 2009-01-13 | 2009-08-19 | 珠海华冠电容器有限公司 | Method for preparing solid aluminum electrolytic capacitor |
| CN201402747Y (en) * | 2009-04-22 | 2010-02-10 | 珠海华冠电容器有限公司 | Carbonization device for solid aluminum electrolytic capacitor |
| CN101916671A (en) * | 2010-07-01 | 2010-12-15 | 南通江海电容器股份有限公司 | Preparation method of solid electrolytic capacitor capable of reducing ESR and enhancing electrostatic capacitance |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102779654A (en) * | 2012-07-25 | 2012-11-14 | 肇庆绿宝石电子有限公司 | Manufacture method of solid electrolyte aluminum electrolytic capacitor |
| CN102779654B (en) * | 2012-07-25 | 2014-04-02 | 肇庆绿宝石电子有限公司 | Manufacture method of solid electrolyte aluminum electrolytic capacitor |
| CN102856077A (en) * | 2012-09-21 | 2013-01-02 | 深圳市柏瑞凯电子科技有限公司 | Manufacture method of solid electrolytic capacitor |
| CN102856077B (en) * | 2012-09-21 | 2016-05-25 | 深圳市柏瑞凯电子科技有限公司 | Solid electrolyte capacitor manufacture method |
| CN103268821A (en) * | 2013-05-08 | 2013-08-28 | 佛山市三水日明电子有限公司 | Solid electrolyte aluminum electrolytic capacitor and manufacturing method thereof |
| CN103268821B (en) * | 2013-05-08 | 2016-06-22 | 佛山市三水日明电子有限公司 | A kind of manufacture method of solid electrolyte/aluminum electrolytic capacitor |
| CN104966619A (en) * | 2015-07-22 | 2015-10-07 | 湖南艾华集团股份有限公司 | Solid electrolytic capacitor of high-ripple-resistant winding type, and production method |
| CN109786137A (en) * | 2019-01-31 | 2019-05-21 | 深圳新宙邦科技股份有限公司 | A kind of solid-state capacitor preparation method |
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Application publication date: 20120718 |