WO2009113285A1 - 固体電解コンデンサとその製造方法 - Google Patents
固体電解コンデンサとその製造方法 Download PDFInfo
- Publication number
- WO2009113285A1 WO2009113285A1 PCT/JP2009/001024 JP2009001024W WO2009113285A1 WO 2009113285 A1 WO2009113285 A1 WO 2009113285A1 JP 2009001024 W JP2009001024 W JP 2009001024W WO 2009113285 A1 WO2009113285 A1 WO 2009113285A1
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- WIPO (PCT)
- Prior art keywords
- anode foil
- electrolytic capacitor
- solid electrolytic
- oxide film
- dielectric oxide
- Prior art date
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- 239000003990 capacitor Substances 0.000 title claims abstract description 82
- 239000007787 solid Substances 0.000 title claims abstract description 42
- 238000004519 manufacturing process Methods 0.000 title claims description 10
- 238000000034 method Methods 0.000 title description 6
- 239000011888 foil Substances 0.000 claims abstract description 77
- 229910019142 PO4 Inorganic materials 0.000 claims abstract description 21
- 239000010452 phosphate Substances 0.000 claims abstract description 21
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 claims abstract description 20
- 239000007784 solid electrolyte Substances 0.000 claims abstract description 18
- 229920001940 conductive polymer Polymers 0.000 claims abstract description 13
- 239000000126 substance Substances 0.000 claims description 23
- 238000006243 chemical reaction Methods 0.000 claims description 20
- 239000003792 electrolyte Substances 0.000 claims description 15
- LFVGISIMTYGQHF-UHFFFAOYSA-N ammonium dihydrogen phosphate Chemical group [NH4+].OP(O)([O-])=O LFVGISIMTYGQHF-UHFFFAOYSA-N 0.000 claims description 12
- 229910000387 ammonium dihydrogen phosphate Inorganic materials 0.000 claims description 12
- 235000019837 monoammonium phosphate Nutrition 0.000 claims description 12
- YTPLMLYBLZKORZ-UHFFFAOYSA-N Thiophene Chemical compound C=1C=CSC=1 YTPLMLYBLZKORZ-UHFFFAOYSA-N 0.000 claims description 6
- 229910052751 metal Inorganic materials 0.000 claims description 5
- 239000002184 metal Substances 0.000 claims description 5
- 238000004804 winding Methods 0.000 claims description 5
- 239000007800 oxidant agent Substances 0.000 claims description 3
- 230000000379 polymerizing effect Effects 0.000 claims description 3
- 229930192474 thiophene Natural products 0.000 claims description 3
- 229910052723 transition metal Inorganic materials 0.000 claims description 3
- -1 transition metal salt Chemical class 0.000 claims description 3
- 238000001035 drying Methods 0.000 claims 3
- 238000010030 laminating Methods 0.000 claims 2
- 239000011247 coating layer Substances 0.000 abstract 3
- 239000010410 layer Substances 0.000 abstract 2
- 239000000243 solution Substances 0.000 description 19
- 229910052782 aluminium Inorganic materials 0.000 description 8
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 8
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 8
- 239000007864 aqueous solution Substances 0.000 description 6
- 238000007789 sealing Methods 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- LRHPLDYGYMQRHN-UHFFFAOYSA-N N-Butanol Chemical compound CCCCO LRHPLDYGYMQRHN-UHFFFAOYSA-N 0.000 description 4
- YMMGRPLNZPTZBS-UHFFFAOYSA-N 2,3-dihydrothieno[2,3-b][1,4]dioxine Chemical compound O1CCOC2=C1C=CS2 YMMGRPLNZPTZBS-UHFFFAOYSA-N 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 3
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 230000032683 aging Effects 0.000 description 2
- 229920005549 butyl rubber Polymers 0.000 description 2
- 238000011088 calibration curve Methods 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 238000005336 cracking Methods 0.000 description 2
- 238000005530 etching Methods 0.000 description 2
- 238000011156 evaluation Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 238000006116 polymerization reaction Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000003811 curling process Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 125000002467 phosphate group Chemical group [H]OP(=O)(O[H])O[*] 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 230000035882 stress Effects 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- JOXIMZWYDAKGHI-UHFFFAOYSA-M toluene-4-sulfonate Chemical compound CC1=CC=C(S([O-])(=O)=O)C=C1 JOXIMZWYDAKGHI-UHFFFAOYSA-M 0.000 description 1
- 230000001052 transient effect Effects 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G9/00—Electrolytic capacitors, rectifiers, detectors, switching devices, light-sensitive or temperature-sensitive devices; Processes of their manufacture
- H01G9/004—Details
- H01G9/022—Electrolytes; Absorbents
- H01G9/025—Solid electrolytes
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G9/00—Electrolytic capacitors, rectifiers, detectors, switching devices, light-sensitive or temperature-sensitive devices; Processes of their manufacture
- H01G9/004—Details
- H01G9/022—Electrolytes; Absorbents
- H01G9/025—Solid electrolytes
- H01G9/028—Organic semiconducting electrolytes, e.g. TCNQ
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G9/00—Electrolytic capacitors, rectifiers, detectors, switching devices, light-sensitive or temperature-sensitive devices; Processes of their manufacture
- H01G9/15—Solid electrolytic capacitors
Definitions
- the present invention relates to a solid electrolytic capacitor used in various electronic devices and a method of manufacturing the same.
- electrolytic capacitors used in power supply lines of CPUs are required to be excellent in wide-band noise removal and transient response ranging from a low frequency range to a high frequency range from 1 MHz to around 1 GHz. It is desirable to have a large capacity and low impedance.
- a wound solid electrolytic capacitor has been commercialized that can obtain a large capacity more easily than a capacitor having a plurality of stacked electrode foils.
- a wound solid electrolytic capacitor is produced by winding an anode foil and a cathode foil laminated via a separator.
- Such a solid electrolytic capacitor has a particularly excellent high frequency characteristic in addition to the life and temperature characteristics, and thus is widely adopted in a power supply circuit of a personal computer.
- FIG. 4 is a partially cutaway perspective view of a conventional solid electrolytic capacitor 501 described in Patent Documents 1 and 2.
- the anode foil 101 made of aluminum foil has a surface roughened by etching, and a dielectric oxide film layer is formed on the surface by chemical conversion.
- the cathode foil 102 is made of aluminum foil.
- a capacitor element 105 is formed by overlapping and winding the anode foil 101 and the cathode foil 102 through the insulating separator 103.
- the solid electrolyte layer 104 is made of a conductive polymer impregnated in the separator 103.
- the anode lead wire 106 and the cathode lead wire 107 are respectively joined to the anode foil 101 and the cathode foil 102 and drawn out.
- the case 108 accommodates the capacitor element 105.
- the case 108 is made of aluminum and has a cylindrical shape having a bottom.
- the sealing member 109 is made of resin-cured butyl rubber, has holes 109A and 109B through which the anode lead wire 106 and the cathode lead wire 107 are respectively inserted, and seals the opening of the case 108.
- the solid electrolytic capacitor is a solid comprising an anode foil, a dielectric oxide film layer provided on the surface of the anode foil, a separator provided on the dielectric oxide film layer, and a conductive polymer impregnated in the separator. It comprises an electrolyte layer, a cathode foil facing the dielectric oxide film layer through the solid electrolyte layer, and a phosphate provided on the surface of the anode foil.
- Leakage current can be reduced in this solid electrolytic capacitor.
- FIG. 1 is a partially cutaway perspective view of a solid electrolytic capacitor according to an embodiment of the present invention.
- FIG. 2 is a cross-sectional view of the solid electrolytic capacitor in the embodiment.
- FIG. 3A shows the evaluation results of the solid electrolytic capacitor in the embodiment.
- FIG. 3B shows the evaluation results of the solid electrolytic capacitor in the embodiment.
- FIG. 4 is a partially cutaway perspective view of a conventional solid electrolytic capacitor.
- the anode foil 1 made of a metal such as aluminum has a surface 1A roughened by etching.
- the dielectric oxide film layer 1B is provided on the surface 1A.
- An insulating separator 3 is provided on the dielectric oxide film layer 1 B, and a cathode foil 2 made of a metal such as aluminum is provided on the separator 3. That is, the cathode foil 2 is opposed to the dielectric oxide film layer 1 B via the separator 3.
- the anode foil 1, the dielectric oxide film layer 1 B, the separator 3 and the cathode foil 2 thus laminated are wound to constitute a capacitor element 5.
- the conductive polymer 4 ⁇ / b> A impregnated in the separator 3 constitutes a solid electrolyte layer 4. That is, the cathode foil 2 is opposed to the dielectric oxide film layer 1 B via the solid electrolyte layer 4.
- a phosphate electrolyte 1C is provided on the dielectric oxide film layer 1B.
- the anode lead wire 6 and the cathode lead wire 7 are respectively bonded to the anode foil 1 and the cathode foil 2.
- the case 8 made of aluminum has a bottom 8A and a cylindrical shape having an opening 8B.
- the case 8 accommodates the capacitor element 5 such that the lead wires 6 and 7 are released from the opening 8B.
- the sealing member 9 made of resin-cured butyl rubber has holes 9A and 9B through which the lead wires 6 and 7 are respectively inserted, and seals the opening 8B of the case 8.
- the surface 1A of the anode foil 1 is subjected to a chemical conversion treatment to form a dielectric oxide film layer 1B on the surface 1A.
- the anode lead wire 6 is joined to the anode foil 1.
- the cathode lead wire 7 is joined to the cathode foil 2.
- the anode foil 1, the separator 3 and the cathode foil 2 are laminated such that the dielectric oxide film layer 1 B faces the cathode foil 2 through the separator 3, and the capacitor element 5 is manufactured by winding using a winding machine.
- the laminated anode foil 1, separator 3 and cathode foil 2 are wound, cracking or damage may occur in the dielectric oxide film layer 1B.
- the capacitor element 5 is immersed in a chemical conversion solution and a voltage is applied between the lead wires 6 and 7 to form a dielectric oxide film layer on the end face of the anode foil 1 to crack or damage the dielectric oxide film layer 1B.
- a chemical conversion treatment is performed on the exposed portion of the surface 1A to form a dielectric oxide film, thereby repairing the dielectric oxide film layer 1B.
- the chemical conversion solution contains a phosphate as an electrolyte, and in this embodiment, contains ammonium dihydrogen phosphate as an electrolyte.
- the capacitor element 5 is heated and dried.
- the capacitor element 5 is impregnated with the polymerization liquid, and the separator 3 is impregnated with the conductive polymer 4A to form the solid electrolyte layer 4.
- capacitor element 5 is housed in case 8
- sealing member 9 is housed in opening 8 B
- opening 8 B is drawn and sealed
- solid electrolytic capacitor 1001 is completed.
- capacitor element 5 is immersed in a chemical conversion solution to repair cracks and damage in dielectric oxide film layer 1B, and then washed with water or a cleaning solution to remove the chemical solution from capacitor element 5 After that, the capacitor element 5 is dried.
- capacitor element 5 is dipped in a chemical conversion solution to repair cracks and damage in dielectric oxide film layer 1B, and thereafter capacitor element 5 is dried without being cleaned. Thereby, the electrolyte 1C (phosphate) of the chemical conversion solution is left on the dielectric oxide film layer 1B.
- capacitor element 5 includes wound anode foil 1, cathode foil 2 and separator 3.
- the solid electrolytic capacitor according to the embodiment may include a capacitor element in which the anode foil 1 and the cathode foil 2 are opposed to each other with the separator 3 interposed therebetween, and the anode foil 1, the cathode foil 2 and the separator 3 are not wound. .
- the anode foil 1 and the cathode foil 2 of the solid electrolytic capacitor 1001 are both made of aluminum.
- the cathode foil 2 of the capacitor element 5 according to the embodiment may be made of a conductor such as nickel, titanium, carbon or the like, and the same effect can be obtained.
- the electrolyte of the chemical conversion solution in the embodiment is a phosphate, particularly ammonium dihydrogen phosphate. Since this chemical conversion solution has high water resistance and is also used when forming the oxide film layer 1B on the surface 1A of the anode foil 1, the solid electrolyte layer 4 is not adversely affected in the completed solid electrolytic capacitor 1001.
- the phosphate be present by 0.5 ⁇ g to 50 ⁇ g per 1 cm 2 of the anode foil 1.
- the amount of residual phosphate is less than 0.5 ⁇ g, the surface 1A of the anode foil 1 can not be sufficiently chemically treated, and the dielectric oxide film layer 1B can not be sufficiently repaired.
- the amount of the remaining phosphate is more than 50 ⁇ g, the polymerization of the conductive polymer 4A of the solid electrolyte layer 4 may be hindered, and it may be difficult to form a good solid electrolyte layer 4.
- the amount of phosphate remaining in the capacitor element 5 is measured by the following method. First, the relationship between the concentration of the aqueous solution of the chemical conversion solution and the conductivity is measured in advance, and a calibration curve showing the relationship between the conductivity of the aqueous solution and the concentration of the chemical solution in the aqueous solution is created.
- the dried capacitor element 5 is disassembled, and the anode foil 1 is put in a predetermined amount of water, and the chemical solution adhering to the anode foil 1 is dissolved in water to prepare an extract.
- the conductivity of the extract is measured, and the concentration of the chemical conversion solution of the extract is determined from the calibration curve. Furthermore, the amount of phosphate in the chemical conversion solution is calculated from the concentration of phosphate in the chemical conversion solution and the volume of the extract.
- the amount of phosphate per unit area of the anode foil 1 is calculated from the calculated amount of phosphate and the area of the anode foil 1.
- Example 1 which is a solid electrolytic capacitor according to the embodiment was produced.
- the surface 1A of the anode foil 1 was subjected to a chemical conversion treatment at a formation voltage of 12 V to form a dielectric oxide film layer 1B.
- capacitor element 1 was produced by the above method.
- capacitor element 1 is immersed in an aqueous solution of 1.0% by weight of ammonium dihydrogenphosphate at a liquid temperature of 70 ° C.
- a dielectric oxide film was formed by applying a voltage (for example, 11 V) within a range not exceeding the formation voltage (12 V) at which the dielectric oxide film layer 1B was formed at 6 and 7.
- the capacitor element 1 was taken out of the aqueous solution of ammonium dihydrogen phosphate and heated at a temperature of 100 to 180 ° C. for about 30 minutes to be dried. Subsequently, the capacitor element 1 was impregnated with ethylenedioxythiophene (EDOT) or an EDOT solution. Then, it was impregnated with a butanol solution of ferric paratoluenesulfonate. Thereafter, the capacitor element 1 was taken out of the butanol solution and heated at a temperature of 20 to 180 ° C. for 30 minutes or more to form a conductive polymer on the separator 3.
- EDOT ethylenedioxythiophene
- EDOT ethylenedioxythiophene
- ferric paratoluenesulfonate ferric paratoluenesulfonate
- capacitor element 1 was housed in the case 8, and the sealing member 9 was placed in the opening 8B of the case. Thereafter, the opening 8B of the case 8 was sealed by a curling process. Thereafter, capacitor element 1 is subjected to aging by continuously applying a DC voltage of 6.3 V to lead wires 6 and 7 at an ambient temperature of 105 ° C. for 1 hour to implement solid electrolytic capacitor 1 of 10 mm in diameter ⁇ 10 mm in height.
- the sample of Example 1 was made.
- the rated voltage of the sample of Example 1 is 6.3V.
- Example 2 of the rated voltage 25V of the solid electrolytic capacitor 1 was produced by the method similar to the above.
- the formation voltage for forming the dielectric oxide film layer 1B was set to 50V.
- the voltage for repairing the dielectric oxide film layer 1B was set to 48V.
- the aging voltage after sealing the case 8 was set to 25V.
- the capacitor element is washed with water only for 10 minutes to remove the ammonium dihydrogen phosphate aqueous solution, and the samples of Comparative Examples 1 and 2 having rated voltages of 6.3 V and 25 V, respectively. Was produced. Further, samples of Comparative Examples 3 and 4 having the rated voltages of 6.3 V and 25 V not repairing the dielectric oxide film layer, respectively, were produced.
- FIGS. 3A and 3B show the measurement results by enlarging the horizontal axis of FIG. 3A. As shown in FIG.
- the conductive polymer forming the solid electrolyte layer 4 is formed by polymerizing thiophene and its derivative with an oxidizing agent composed of a transition metal salt, thereby effectively suppressing the leakage current. it can.
- the solid electrolytic capacitor 1001 is provided with the case 8 made of aluminum for housing the capacitor element 5, but instead of the case 8, an exterior resin may be provided to cover the capacitor element 5.
- the solid electrolytic capacitor according to the present invention can reduce leakage current, has high reliability, and is useful for various electronic devices.
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Fixed Capacitors And Capacitor Manufacturing Machines (AREA)
Abstract
Description
1A 表面
1B 誘電体酸化皮膜層
1C 電解質
2 陰極箔
3 セパレータ
4 固体電解質層
4A 導電性高分子
Claims (9)
- 表面を有する金属からなる陽極箔と、
前記陽極箔の前記表面上に設けられた誘電体酸化皮膜層と、
前記誘電体酸化皮膜層上に設けられた絶縁性を有するセパレータと、
前記セパレータに含浸された導電性高分子からなる固体電解質層と、
前記固体電解質層を介して前記誘電体酸化皮膜層に対向する陰極箔と、
前記誘電体酸化皮膜層上に設けられたリン酸塩と、
を備えた固体電解コンデンサ。 - 前記リン酸塩はリン酸二水素アンモニウムである、請求項1に記載の固体電解コンデンサ。
- 前記リン酸塩は前記陽極箔の1cm2あたり0.5μg~50μgだけ存在する、請求項1に記載の固体電解コンデンサ。
- 前記固体電解質層は、チオフェンおよびその誘導体を遷移金属塩からなる酸化剤で重合させた導電性高分子である、請求項1に記載の固体電解コンデンサ。
- 金属からなる陽極箔の表面を化成処理して誘電体酸化皮膜層を形成するステップと、
金属からなる陰極箔が絶縁性のセパレータを介して前記誘電体酸化皮膜層と対向するように、前記陽極箔と前記セパレータと前記陰極箔とを積層するステップと、
前記陽極箔と前記セパレータと前記陰極箔とを積層するステップの後で、前記陽極箔と前記セパレータと前記陰極箔とを巻回してコンデンサ素子を形成するステップと、
前記陽極箔を化成処理できる電解質を含有する化成液に前記コンデンサ素子を浸して前記誘電体酸化皮膜層を修復するステップと、
前記誘電体酸化皮膜層を修復するステップの後で、前記陽極箔上に前記電解質が残留するように前記コンデンサ素子を乾燥させるステップと、
前記セパレータに導電性高分子を含浸させて固体電解質層を形成するステップと、
を含む、固体電解コンデンサの製造方法。 - 前記電解質はリン酸塩である、請求項5に記載の固体電解コンデンサの製造方法。
- 前記電解質はリン酸二水素アンモニウムである、請求項6に記載の固体電解コンデンサの製造方法。
- 前記陽極箔上に前記電解質が残留するように前記コンデンサ素子を乾燥させるステップは、前記陽極箔の前記表面の1cm2あたり0.5μg~50μgだけ前記陽極箔の前記表面上に前記電解質が残留するように前記コンデンサ素子を乾燥させるステップを含む、請求項5に記載の固体電解コンデンサの製造方法。
- 前記固体電解質層を形成するステップは、チオフェンおよびその誘導体を遷移金属塩からなる酸化剤で重合させた導電性高分子を前記セパレータに含浸させるステップを含む、請求項5に記載の固体電解コンデンサの製造方法。
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CN200980000295XA CN101681725B (zh) | 2008-03-10 | 2009-03-06 | 固体电解电容器和其制造方法 |
JP2009530728A JP4947150B2 (ja) | 2008-03-10 | 2009-03-06 | 固体電解コンデンサの製造方法 |
US12/596,513 US8154854B2 (en) | 2008-03-10 | 2009-03-06 | Solid electrolytic capacitor and method of manufacturing the same |
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JP2008-058938 | 2008-03-10 | ||
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JP2008-162908 | 2008-06-23 | ||
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EP2309523A1 (en) * | 2009-10-06 | 2011-04-13 | Shin-Etsu Polymer Co. Ltd. | Solid conductive polymer electrolytic capacitor and method for producing same comprising a drying step |
WO2016088300A1 (ja) * | 2014-12-01 | 2016-06-09 | パナソニックIpマネジメント株式会社 | 電解コンデンサおよびその製造方法 |
JP2018152483A (ja) * | 2017-03-14 | 2018-09-27 | 日本ケミコン株式会社 | コンデンサおよびその製造方法 |
JP2019067958A (ja) * | 2017-10-02 | 2019-04-25 | 日本ケミコン株式会社 | 巻回形固体電解コンデンサ及び製造方法 |
JP2022169767A (ja) * | 2013-09-09 | 2022-11-09 | パナソニックIpマネジメント株式会社 | 蓄電デバイス |
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- 2009-03-06 US US12/596,513 patent/US8154854B2/en active Active
- 2009-03-06 CN CN200980000295XA patent/CN101681725B/zh active Active
- 2009-03-06 WO PCT/JP2009/001024 patent/WO2009113285A1/ja active Application Filing
- 2009-03-06 JP JP2009530728A patent/JP4947150B2/ja active Active
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
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JP2003297684A (ja) * | 2002-03-28 | 2003-10-17 | Nippon Chemicon Corp | 固体電解コンデンサの製造方法 |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2309523A1 (en) * | 2009-10-06 | 2011-04-13 | Shin-Etsu Polymer Co. Ltd. | Solid conductive polymer electrolytic capacitor and method for producing same comprising a drying step |
JP2022169767A (ja) * | 2013-09-09 | 2022-11-09 | パナソニックIpマネジメント株式会社 | 蓄電デバイス |
JP7390601B2 (ja) | 2013-09-09 | 2023-12-04 | パナソニックIpマネジメント株式会社 | 蓄電デバイス |
WO2016088300A1 (ja) * | 2014-12-01 | 2016-06-09 | パナソニックIpマネジメント株式会社 | 電解コンデンサおよびその製造方法 |
JPWO2016088300A1 (ja) * | 2014-12-01 | 2017-09-21 | パナソニックIpマネジメント株式会社 | 電解コンデンサおよびその製造方法 |
JP2018152483A (ja) * | 2017-03-14 | 2018-09-27 | 日本ケミコン株式会社 | コンデンサおよびその製造方法 |
JP7039848B2 (ja) | 2017-03-14 | 2022-03-23 | 日本ケミコン株式会社 | コンデンサおよびその製造方法 |
JP2019067958A (ja) * | 2017-10-02 | 2019-04-25 | 日本ケミコン株式会社 | 巻回形固体電解コンデンサ及び製造方法 |
JP7221588B2 (ja) | 2017-10-02 | 2023-02-14 | 日本ケミコン株式会社 | 巻回形固体電解コンデンサ及び製造方法 |
Also Published As
Publication number | Publication date |
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JPWO2009113285A1 (ja) | 2011-07-21 |
JP4947150B2 (ja) | 2012-06-06 |
US20100118470A1 (en) | 2010-05-13 |
CN101681725B (zh) | 2011-12-14 |
US8154854B2 (en) | 2012-04-10 |
CN101681725A (zh) | 2010-03-24 |
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