WO2012017618A1 - 固体電解コンデンサ - Google Patents
固体電解コンデンサ Download PDFInfo
- Publication number
- WO2012017618A1 WO2012017618A1 PCT/JP2011/004231 JP2011004231W WO2012017618A1 WO 2012017618 A1 WO2012017618 A1 WO 2012017618A1 JP 2011004231 W JP2011004231 W JP 2011004231W WO 2012017618 A1 WO2012017618 A1 WO 2012017618A1
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- Prior art keywords
- silver
- particles
- layer
- silver particles
- paste layer
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES OR LIGHT-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
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES OR LIGHT-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
- H01G9/008—Terminals
- H01G9/012—Terminals specially adapted for solid capacitors
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES OR LIGHT-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
- H01G9/04—Electrodes or formation of dielectric layers thereon
- H01G9/042—Electrodes or formation of dielectric layers thereon characterised by the material
- H01G9/0425—Electrodes or formation of dielectric layers thereon characterised by the material specially adapted for cathode
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES OR LIGHT-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, and more particularly to a silver paste layer constituting a current collector layer formed on a solid electrolyte layer.
- Such a solid electrolytic capacitor has a capacitor element and a pair of external terminals.
- the capacitor element includes a base material made of a conductive material, a dielectric film formed on the base material, a solid electrolyte layer formed on the dielectric film, and a current collector formed on the solid electrolyte layer. And having a layer.
- Each of the pair of external terminals is electrically connected to the base material and the current collector layer.
- the current collector layer has a carbon layer formed on the solid electrolyte layer and a silver paste layer formed on the carbon layer.
- the silver paste layer is formed by kneading silver particles having a peak particle diameter of about 1 ⁇ m, an epoxy resin, a curing agent, and the like.
- ESR equivalent series resistance
- studies have been made to improve the adhesion to the carbon layer by mixing small silver particles having a peak particle size of 1 to 100 nm in the silver paste layer (for example, Patent Document 1).
- the contact resistance with the carbon layer is reduced. Therefore, the thickness of the silver paste layer can be reduced for the same amount of silver.
- the silver paste layer is thin, the oxygen transmission path is shortened. Therefore, oxidative deterioration or thermal oxidation with time of the solid electrolyte layer increases. As a result, ESR is increased.
- the present invention is a solid electrolytic capacitor in which ESR is further reduced.
- the solid electrolytic capacitor of the present invention has a capacitor element, a first external terminal, and a second external terminal.
- the capacitor element includes a base material made of a conductive material, a dielectric film formed on the base material, a solid electrolyte layer formed on the dielectric film, and a silver paste layer formed on the solid electrolyte layer. And a current collector layer.
- the first external terminal is electrically connected to the base material, and the second external terminal is electrically connected to the current collector layer.
- the silver paste layer includes first silver particles having a peak particle diameter of 150 nm or less, second silver particles having a peak particle diameter of 500 nm or more, inorganic particles made of a material different from silver, and a resin material.
- the volume ratio of the inorganic particles is 15% or more and 50% or less with respect to the total of the first silver particles and the second silver particles.
- the present invention it is possible to suppress the oxidation of the solid electrolyte layer and further reduce the ESR of the solid electrolytic capacitor while reducing the contact resistance between the silver paste layer and the carbon layer using small first silver particles. It can.
- FIG. 1 is a perspective view of a solid electrolytic capacitor according to an embodiment of the present invention.
- FIG. 2A is a plan view of a capacitor element used in the solid electrolytic capacitor shown in FIG. 2B is a cross-sectional view of the capacitor element shown in FIG. 2A.
- FIG. 3 is a graph showing the relationship between the amount of deposited silver and the ESR characteristic in the solid electrolytic capacitor according to the embodiment of the present invention.
- FIG. 4 is a cross-sectional view of another solid electrolytic capacitor according to an embodiment of the present invention.
- FIG. 1 is a perspective view of a solid electrolytic capacitor 100 according to an embodiment of the present invention in which capacitor elements 1 are laminated.
- 2A and 2B are a plan view and a cross-sectional view of the flat capacitor element 1.
- a solid electrolytic capacitor 100 using a conductive polymer material as an electrolyte will be described as an example.
- the solid electrolytic capacitor 100 includes a capacitor element 1, an anode terminal 10 that is a first external terminal, and a cathode terminal 11 that is a second external terminal.
- the capacitor element 1 includes a base material 2 made of a conductive material, a dielectric film 3, a solid electrolyte layer 6, and a current collector layer 7.
- the dielectric film 3 is formed on the substrate 2
- the solid electrolyte layer 6 is formed on the dielectric film 3
- the current collector layer 7 is formed on the solid electrolyte layer 6.
- the current collector layer 7 includes at least a silver paste layer 9.
- the anode terminal 10 is electrically connected to the substrate 2, and the cathode terminal 11 is electrically connected to the current collector layer 7.
- the base material 2 and the dielectric film 3 form an anode foil.
- an insulating portion 5 made of an insulating resin, an insulating tape, or the like that is separated into an anode portion 4 and a cathode forming portion (not shown) is formed so as to crush the dielectric film 3.
- a solid electrolyte layer 6 made of a conductive polymer and a current collector layer 7 are formed on the dielectric film 3 in the cathode forming portion.
- the current collector layer 7 includes a lower carbon layer 8 and a silver paste layer 9 formed on the carbon layer 8.
- the solid electrolyte layer 6 and the current collector layer 7 constitute a cathode of the capacitor element 1.
- each anode portion 4 is connected to the anode terminal 10 by welding such as laser welding or resistance welding.
- the current collector layer 7 is connected to the cathode terminal 11 by a conductive adhesive.
- the anode terminal 10 and the cathode terminal 11 are integrally covered with an exterior body 12 made of an insulating resin together with the plurality of capacitor elements 1 in a state where a part thereof is exposed on the outer surface.
- anode terminal 10 and the cathode terminal 11 exposed from the exterior body 12 is bent to the bottom surface along the exterior body 12, the anode terminal 10 and the cathode terminal 11 are formed on the bottom surface. In this way, the surface mount type solid electrolytic capacitor 100 is formed.
- the base material 2 is, for example, an aluminum foil whose surface is roughened by etching and a large number of holes are formed on the surface.
- the surface of the substrate 2 may be flat, but the capacity can be increased by roughening the surface.
- the surface of the substrate 2 can be roughened by laminating the valve metal fine particles on the substrate 2 by, for example, vapor deposition or aerosol.
- the dielectric film 3 is formed, for example, by anodizing the base material 2.
- the dielectric film 3 is made of aluminum oxide. In addition to anodic oxidation, it may be formed by vapor deposition or plating.
- the dielectric film 3 may be made of oxide or nitride such as titanium nitride or titanium oxide in addition to aluminum oxide.
- valve metal materials such as titanium and tantalum and alloy materials thereof may be used.
- the silver paste layer 9 includes first silver particles, second silver particles, inorganic particles made of a material different from silver, and a resin material.
- the peak particle diameter (diameter) of the first silver particles is 150 nm or less, and the peak particle diameter of the second silver particles is 500 nm or more.
- the resin material is composed of, for example, an epoxy resin and a curing agent.
- the silver component combining the first silver particles and the second silver particles is the main component of the silver paste layer 9.
- the inorganic particles silica, glass, alumina, graphite or the like can be used.
- Such a silver paste material is diluted with a diluent such as terpineol to such an extent that it can be applied, applied to the solid electrolyte layer 6, and cured at about 200 ° C. for 10 minutes to form the silver paste layer 9.
- a diluent such as terpineol
- the carbon layer 8 disposed under the silver paste layer 9 may be omitted.
- the silver paste layer 9 contains inorganic particles.
- the thickness of the silver paste layer 9 can be maintained at a low cost, and the oxygen permeation path can be lengthened. As a result, the ESR of the solid electrolytic capacitor 100 can be further reduced.
- the volume ratio of the inorganic particles needs to be 15% or more and 50% or less with respect to the total of the first silver particles and the second silver particles.
- the above-mentioned effect is hardly exhibited.
- it exceeds 50% the conductive network of the silver component is affected, the resistivity of the silver paste layer 9 itself is increased, and the ESR is increased.
- the inorganic particles may be made of a material that can withstand the reflow temperature, and may be insulating or conductive.
- an organic material may be used as long as the above conditions are satisfied, but in reality, inorganic materials are easier to obtain.
- the linear expansion coefficient of organic substance is generally larger than that of inorganic substance, silver particles may be peeled off inside the silver paste layer 9 during heating.
- the surface mount type solid electrolytic capacitor 100 When mounting the surface mount type solid electrolytic capacitor 100 on a circuit board (not shown), it is exposed to a high temperature of about 260 ° C. in a reflow process. At this time, since the inorganic particles generally have a melting point higher than that of a resin that is an organic material, the shape can be maintained in the silver paste layer 9. Accordingly, the silver paste layer 9 is not easily deformed even during reflow, oxygen transmission can be suppressed, and oxidation of the solid electrolyte layer 6 due to heat can be suppressed. As a result, the reliability in terms of ESR is improved.
- the inorganic particles are preferably a conductive material, particularly graphite constituting the carbon layer 8.
- the peak particle diameter (diameter) of the first silver particles is 150 nm or less, and the peak particle diameter of the second silver particles is 500 nm or more.
- ESR of the solid electrolytic capacitor 100 can be reduced and the cost can be reduced. That is, the contact resistance with the carbon layer 8 can be reduced with fine first silver particles, and the specific resistance of the silver paste layer 9 can be reduced by using large second silver particles.
- the peak particle size of the first silver particles is preferably 10 nm or more.
- a physical production method in which bulk metal is pulverized and a chemical production method in which metal atoms are formed and aggregated from ions or complexes as precursors.
- the chemical manufacturing method is more suitable for making finer silver particles.
- the peak particle diameter of the first silver particles is preferably 10 nm or more.
- the peak particle size of the second silver particles is preferably 5 ⁇ m or less. If it exceeds 5 ⁇ m, the gap between the particles becomes large, and a large amount of the first silver particles for filling the gap and connecting the second fine particles is required, which increases the cost.
- the peak particle diameter of the inorganic particles is, for example, about 50 nm or more and 500 nm or less.
- the peak particle diameter of the inorganic particles is preferably smaller than the peak particle diameter of the second silver particles. This is because the specific resistance of the silver paste layer 9 is kept small.
- the weight ratio of the total silver component of the first silver particles and the second silver particles to the epoxy resin is, for example, 90:10. That is, the weight ratio of the silver component to the total of the silver component and the resin component is 90 wt%.
- the weight ratio of the silver component to the total of the silver component and the resin component is preferably 70 wt% or more and 95 wt% or less. This is because the specific resistance of the silver paste layer 9 is kept small.
- the blending ratio of the first silver particles is preferably 10 wt% or more and 60 wt% or less. This is because the contact resistance with the carbon layer 8 is kept small and the specific resistance of the silver paste layer 9 is kept small.
- first silver particles having a peak particle diameter of 100 nm and second silver particles having a peak particle diameter of 3000 nm are used, and the mixing ratio of the first silver particles in the entire silver component is 50 wt%. That is, the compounding ratio of the second silver particles in the entire silver component is 50 wt%.
- graphite having a peak particle diameter of 500 nm is used as the inorganic particles.
- the weight ratio of the silver component with respect to the sum total of the silver component and the epoxy resin which is a resin component is 90 wt%.
- FIG. 3 is a graph showing the relationship between the silver adhesion amount and the ESR characteristic in one capacitor element 1 using the silver paste layer 9.
- ESR was measured at 100 kHz with an Agilent 4294A Precision Impedance Analyzer. As shown in FIG.
- the capacitor element 1 whose ESR was measured was rectangular, and the silver paste layer 9 had a width d 1 in the major axis direction of the capacitor element 1 of 4 mm and a width d 2 in the minor axis direction of 3 mm. It is.
- the anode 4 has a width d 3 major axis direction of the capacitor element is 2 mm.
- the result of the comparative example is shown in FIG. 3 together with the result of the above example.
- a silver paste layer containing no inorganic particles but containing the first silver particles, the second silver particles, and the epoxy resin in the same ratio as in the example is used.
- the initial ESR and the ESR after the heat resistance test are measured. In the heat resistance test, it is left in the air at 125 ° C. for 250 hours.
- the relative value of the ESR characteristic on the vertical axis in FIG. 3 is based on the initial ESR of the sample with the smallest silver adhesion amount (the sample with the thinnest silver paste layer) in the comparative example, and the ESR of each sample is shown as a relative value. Yes.
- the relative value of the amount of silver adhesion on the horizontal axis is based on the silver adhesion amount of the sample with the smallest silver adhesion amount (the sample with the thinnest silver paste layer) in the comparative example, and indicates the silver adhesion amount of each sample as a relative value. ing.
- the specific resistance is calculated by measuring the surface resistance by pressing the probe against the surface of the silver paste using a low resistivity meter (Lorestar GP MCP-T600 manufactured by Mitsubishi Chemical).
- contact resistance is measured by applying a resistance measurement terminal to a silver paste layer formed with a predetermined gap therebetween.
- the point where the gap is zero can be estimated as the contact resistance.
- Total resistance was measured with a digital multimeter (manufactured by Agilent, 34401A).
- the gap distance is measured using a digital microscope (KH-3000, manufactured by HIROX).
- the specific resistance is less than 25 ⁇ ⁇ cm when the volume ratio of the inorganic particles to the total of the first silver particles and the second silver particles is between 15% and 40%, The bulk resistance of the silver paste layer 9 is kept low.
- the specific resistance is 35.1 ⁇ ⁇ cm, which is slightly higher.
- the contact resistance is kept low, with the volume ratio of the inorganic particles to the total of the first silver particles and the second silver particles being around 0.2 between 15% and 50%.
- the ESR characteristic of the capacitor element 1 is more susceptible to the resistance at the interface with the solid electrolyte layer 6 and the carbon layer 8 than to the bulk resistance of the silver paste layer 9. Therefore, the volume ratio of the inorganic particles to the total of the first silver particles and the second silver particles is preferably 15% or more and 50% or less, and the thickness of the silver paste layer 9 is preferably increased. By doing in this way, it is thought that the ESR characteristic fall of the capacitor
- the solid electrolytic capacitor 100 shown in FIGS. 1 to 2B aluminum is used as the base material 2, and the solid electrolyte layer 6 is made of a conductive polymer.
- the silver paste layer 9 can be applied to a tantalum solid electrolytic capacitor 200 as shown in FIG. FIG. 4 is a cross-sectional view of another solid electrolytic capacitor 200 according to the embodiment of the present invention.
- the anode 13 of the solid electrolytic capacitor 200 is composed of a tantalum sintered body, a dielectric film 14 is formed on the anode 13, and a solid electrolyte layer 15 made of manganese dioxide or a conductive polymer is formed thereon, and a current collector.
- the body layer 16 is sequentially laminated.
- the silver paste layer 9 in FIG. 2B can be used for the current collector layer 16.
- the inorganic particles may be the core of the first silver particles. That is, a nano-order inorganic particle may be used as a core, and silver may be deposited or laminated around the core to form a silver layer and used as the first silver particle.
- the silver paste layer has the above-described configuration, the first silver particles having a particle peak particle diameter of 10 nm or more and 150 nm or less, the second silver particles having a peak particle diameter of 500 nm or more and 5 ⁇ m or less, and a resin material. including.
- the first silver particles and the second silver particles are the main components that occupy 70 wt% or more of the silver paste layer.
- ESR characteristics can be realized.
- the content of the inorganic particles is more than 20% in volume ratio with respect to the total volume of the first silver particles and the second silver particles. Can achieve low ESR characteristics.
- the silver paste layer according to the present invention is useful for a solid electrolytic capacitor having a low ESR characteristic.
Abstract
Description
2 基材
3 誘電膜
4 陽極部
5 絶縁部
6 固体電解質層
7 集電体層
8 カーボン層
9 銀ペースト層
10 陽極端子(第1外部端子)
11 陰極端子(第2外部端子)
12 外装体
13 陽極
14 誘電膜
15 固体電解質層
16 集電体層
100,200 固体電解コンデンサ
Claims (4)
- 導電性材料からなる基材と、前記基材上に形成された誘電膜と、前記誘電膜上に形成された固体電解質層と、前記固体電解質層上に形成され、少なくとも銀ペースト層を含む集電体層とを有するコンデンサ素子と、
前記基材に電気的に接続された第1外部端子と、
前記集電体層に電気的に接続された第2外部端子と、を備え、
前記銀ペースト層は、
ピーク粒子径が150nm以下の第一銀粒子と、
ピーク粒子径が500nm以上の第二銀粒子と、
銀とは異なる材料からなる無機粒子と、
樹脂材料と、を含み、
前記無機粒子の体積比率は、前記第一銀粒子と第二銀粒子との合計に対し、15%以上、50%以下である、
固体電解コンデンサ。 - 前記無機粒子はグラファイトであり、
前記無機粒子の体積比率は、前記第一銀粒子と第二銀粒子との合計に対し、15%以上、40%以下である、
請求項1記載の固体電解コンデンサ。 - 前記無機粒子の粒子径分布のピーク値は、前記第二銀粒子の粒子径分布のピーク値よりも小さい、
請求項1記載の固体電解コンデンサ。 - 導電性材料からなる基材と、前記基材上に形成された誘電膜と、前記誘電膜上に形成された固体電解質層と、前記固体電解質層上に形成され、少なくとも銀ペースト層を含む集電体層とを有するコンデンサ素子と、
前記基材に電気的に接続された第1外部端子と、
前記集電体層に電気的に接続された第1外部端子と、を備え、
前記銀ペースト層は、
ピーク粒子径が150nm以下の第一銀粒子と、
ピーク粒子径が500nm以上の第二銀粒子と、
樹脂材料と、を含み、
前記第一銀粒子は、核である無機粒子の周りに銀の層が形成された粒子である、
固体電解コンデンサ。
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
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CN201180035189.2A CN103003901B (zh) | 2010-08-02 | 2011-07-27 | 固体电解电容器 |
JP2012527580A JP5333674B2 (ja) | 2010-08-02 | 2011-07-27 | 固体電解コンデンサ |
US13/809,446 US8559164B2 (en) | 2010-08-02 | 2011-07-27 | Solid electrolytic capacitor |
US14/019,540 US9218911B2 (en) | 2010-08-02 | 2013-09-06 | Solid electrolytic capacitor |
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JP2010173366 | 2010-08-02 | ||
JP2010-173366 | 2010-08-02 |
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US13/809,446 A-371-Of-International US8559164B2 (en) | 2010-08-02 | 2011-07-27 | Solid electrolytic capacitor |
US14/019,540 Continuation US9218911B2 (en) | 2010-08-02 | 2013-09-06 | Solid electrolytic capacitor |
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WO2012017618A1 true WO2012017618A1 (ja) | 2012-02-09 |
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US (2) | US8559164B2 (ja) |
JP (1) | JP5333674B2 (ja) |
CN (1) | CN103003901B (ja) |
WO (1) | WO2012017618A1 (ja) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US11456121B2 (en) | 2018-02-28 | 2022-09-27 | Panasonic Intellectual Property Management Co., Ltd. | Electrolytic capacitor and method for production thereof |
WO2024070142A1 (ja) * | 2022-09-30 | 2024-04-04 | パナソニックIpマネジメント株式会社 | 固体電解コンデンサ素子および固体電解コンデンサ |
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Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP6428339B2 (ja) * | 2015-02-13 | 2018-11-28 | 三菱マテリアル株式会社 | 銀粉及びペースト状組成物並びに銀粉の製造方法 |
JP6865352B2 (ja) * | 2015-10-28 | 2021-04-28 | パナソニックIpマネジメント株式会社 | 固体電解コンデンサ及び固体電解コンデンサの製造方法 |
US10475591B2 (en) * | 2016-11-15 | 2019-11-12 | Avx Corporation | Solid electrolytic capacitor for use in a humid atmosphere |
JPWO2020153451A1 (ja) * | 2019-01-24 | 2021-12-02 | パナソニックIpマネジメント株式会社 | 固体電解コンデンサおよびその製造方法 |
TWI695396B (zh) * | 2020-03-16 | 2020-06-01 | 鈺邦科技股份有限公司 | 電容器單元及其製造方法 |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH02265233A (ja) * | 1989-04-05 | 1990-10-30 | Matsushita Electric Ind Co Ltd | 固体電解コンデンサ |
JPH06151261A (ja) * | 1992-11-10 | 1994-05-31 | Toshiba Chem Corp | 固体電解コンデンサ |
JP2003203828A (ja) * | 2001-10-30 | 2003-07-18 | Matsushita Electric Ind Co Ltd | 固体電解コンデンサおよびその製造方法 |
JP2004363575A (ja) * | 2003-05-14 | 2004-12-24 | Sanyo Electric Co Ltd | 固体電解コンデンサ |
JP2006253169A (ja) * | 2005-03-08 | 2006-09-21 | Matsushita Electric Ind Co Ltd | 固体電解コンデンサおよびその製造方法 |
JP2006269570A (ja) * | 2005-03-23 | 2006-10-05 | Sanyo Electric Co Ltd | 固体電解コンデンサ及び固体電解コンデンサ用陰極材料の製造方法 |
Family Cites Families (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5005107A (en) | 1988-12-07 | 1991-04-02 | Matsushita Electric Industrial Co., Ltd. | Solid electrolytic capacitor |
JPH09296158A (ja) | 1996-05-01 | 1997-11-18 | Nippon Handa Kk | 導電性接着剤 |
JP2003082194A (ja) | 2001-09-07 | 2003-03-19 | Kyocera Chemical Corp | 導電性ペースト及び固体電解コンデンサ |
US7154743B2 (en) | 2002-12-13 | 2006-12-26 | Sanyo Electric Co., Ltd. | Solid electrolytic capacitor and method for manufacturing same |
CN100501889C (zh) * | 2002-12-13 | 2009-06-17 | 三洋电机株式会社 | 固体电解电容器及其制造方法 |
JP4944359B2 (ja) | 2003-09-18 | 2012-05-30 | 日本ケミコン株式会社 | 固体電解コンデンサ及びその製造方法 |
CN1697103B (zh) | 2004-05-13 | 2012-09-05 | 三洋电机株式会社 | 固体电解电容器 |
JP3974645B2 (ja) * | 2005-03-30 | 2007-09-12 | 昭和電工株式会社 | 固体電解コンデンサ素子、その製造方法、及び固体電解コンデンサ |
WO2007077914A1 (ja) | 2005-12-28 | 2007-07-12 | Showa Denko K.K. | 固体電解コンデンサおよびその製造方法 |
WO2007123752A2 (en) * | 2006-03-31 | 2007-11-01 | Aculon, Inc. | Solid electrolytic capacitors |
JP2008098394A (ja) * | 2006-10-12 | 2008-04-24 | Nec Tokin Corp | 固体電解コンデンサ |
JP4812118B2 (ja) * | 2007-03-23 | 2011-11-09 | Necトーキン株式会社 | 固体電解コンデンサ及びその製造方法 |
JP4914769B2 (ja) | 2007-05-31 | 2012-04-11 | イー・アイ・デュポン・ドウ・ヌムール・アンド・カンパニー | 固体電解コンデンサ電極用導体ペーストおよび該導体ペーストを使用した固体電解コンデンサの電極の製造方法 |
JP2008311583A (ja) * | 2007-06-18 | 2008-12-25 | Nec Tokin Corp | 固体電解コンデンサおよびその製造方法 |
JP4964102B2 (ja) * | 2007-11-26 | 2012-06-27 | 三洋電機株式会社 | 固体電解コンデンサ |
JP2009170897A (ja) * | 2007-12-21 | 2009-07-30 | Sanyo Electric Co Ltd | 固体電解コンデンサ |
JP2010034398A (ja) * | 2008-07-30 | 2010-02-12 | Sanyo Electric Co Ltd | 固体電解コンデンサ |
JP5284728B2 (ja) * | 2008-08-29 | 2013-09-11 | 三菱マテリアル株式会社 | 銀被覆アルミニウム粉末とその製造方法 |
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Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH02265233A (ja) * | 1989-04-05 | 1990-10-30 | Matsushita Electric Ind Co Ltd | 固体電解コンデンサ |
JPH06151261A (ja) * | 1992-11-10 | 1994-05-31 | Toshiba Chem Corp | 固体電解コンデンサ |
JP2003203828A (ja) * | 2001-10-30 | 2003-07-18 | Matsushita Electric Ind Co Ltd | 固体電解コンデンサおよびその製造方法 |
JP2004363575A (ja) * | 2003-05-14 | 2004-12-24 | Sanyo Electric Co Ltd | 固体電解コンデンサ |
JP2006253169A (ja) * | 2005-03-08 | 2006-09-21 | Matsushita Electric Ind Co Ltd | 固体電解コンデンサおよびその製造方法 |
JP2006269570A (ja) * | 2005-03-23 | 2006-10-05 | Sanyo Electric Co Ltd | 固体電解コンデンサ及び固体電解コンデンサ用陰極材料の製造方法 |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US11456121B2 (en) | 2018-02-28 | 2022-09-27 | Panasonic Intellectual Property Management Co., Ltd. | Electrolytic capacitor and method for production thereof |
WO2024070142A1 (ja) * | 2022-09-30 | 2024-04-04 | パナソニックIpマネジメント株式会社 | 固体電解コンデンサ素子および固体電解コンデンサ |
Also Published As
Publication number | Publication date |
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CN103003901A (zh) | 2013-03-27 |
US8559164B2 (en) | 2013-10-15 |
JP5333674B2 (ja) | 2013-11-06 |
CN103003901B (zh) | 2016-03-09 |
US20130114184A1 (en) | 2013-05-09 |
US20140043728A1 (en) | 2014-02-13 |
JPWO2012017618A1 (ja) | 2013-09-19 |
US9218911B2 (en) | 2015-12-22 |
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