WO2021193329A1 - 電解コンデンサ - Google Patents

電解コンデンサ Download PDF

Info

Publication number
WO2021193329A1
WO2021193329A1 PCT/JP2021/010996 JP2021010996W WO2021193329A1 WO 2021193329 A1 WO2021193329 A1 WO 2021193329A1 JP 2021010996 W JP2021010996 W JP 2021010996W WO 2021193329 A1 WO2021193329 A1 WO 2021193329A1
Authority
WO
WIPO (PCT)
Prior art keywords
anode
cathode
lead terminal
electrolytic capacitor
corrugated
Prior art date
Application number
PCT/JP2021/010996
Other languages
English (en)
French (fr)
Japanese (ja)
Inventor
祐治 宮地
Original Assignee
パナソニックＩｐマネジメント株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by パナソニックＩｐマネジメント株式会社 filed Critical パナソニックＩｐマネジメント株式会社
Priority to JP2022510025A priority Critical patent/JPWO2021193329A1/ja
Publication of WO2021193329A1 publication Critical patent/WO2021193329A1/ja

Links

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
    • H01G9/008—Terminals
    • H01G9/012—Terminals specially adapted for solid capacitors

Definitions

  • This disclosure relates to electrolytic capacitors.
  • Electrolytic capacitors are installed in various electronic devices.
  • the electrolytic capacitor usually includes a capacitor element including an anode portion and a cathode portion, an anode lead terminal, a cathode lead terminal, and an exterior resin covering the capacitor element.
  • the anode lead terminal is electrically connected to the anode portion
  • the cathode lead terminal is electrically connected to the cathode portion.
  • Patent Document 1 describes a solid electrolytic capacitor in which a recess formed by a plurality of grooves or recesses is provided on a surface of the cathode lead frame in contact with the conductive adhesive and a surface in contact with the exterior resin. Is disclosed.
  • a part of the cathode lead terminal is connected to the cathode part of the capacitor element with a conductive adhesive or the like.
  • a part of the material is in contact with the exterior resin. Since the cathode lead terminal is made of a metal sheet, it has a coefficient of thermal expansion different from that of a conductive adhesive or an exterior resin. Therefore, due to the thermal expansion of the cathode lead terminal, the adhesion between the cathode lead terminal and the conductive adhesive and the adhesion between the cathode lead terminal and the exterior resin may decrease, and the characteristics of the electrolytic capacitor may deteriorate.
  • one of the purposes of the present disclosure is to provide an electrolytic capacitor capable of suppressing deterioration of characteristics due to thermal expansion of the cathode lead terminal.
  • the electrolytic capacitor is an electrolytic capacitor including a capacitor element, an anode lead terminal and a cathode lead terminal electrically connected to the capacitor element, and an exterior resin arranged around the capacitor element, and the capacitor.
  • the element includes an anode portion and a cathode portion, the anode portion includes an anode body and an anode wire which are porous sintered bodies, and the cathode lead terminal has a plurality of ridge portions and a plurality of valley portions.
  • One surface of the corrugated portion is connected to the cathode portion by a conductive member, and the other surface of the corrugated portion is in contact with the exterior resin.
  • an electrolytic capacitor capable of suppressing deterioration of characteristics due to thermal expansion of the cathode lead terminal can be obtained.
  • FIG. 1 It is sectional drawing which shows typically an example of the electrolytic capacitor of this disclosure. It is a perspective view which shows typically the corrugated part of the cathode lead terminal of the electrolytic capacitor shown in FIG. 1. It is sectional drawing which shows typically the corrugated part of the cathode lead terminal of the electrolytic capacitor shown in FIG. 1. It is a perspective view which shows another example of the corrugated part of a cathode lead terminal schematically. It is a perspective view which shows another example of the corrugated part of a cathode lead terminal schematically. It is sectional drawing which shows typically another example of the corrugated part of an anode body and a cathode lead terminal.
  • the electrolytic capacitor of the present disclosure includes a capacitor element, an anode lead terminal and a cathode lead terminal electrically connected to the capacitor element, and an exterior resin arranged around the capacitor element.
  • the capacitor element includes an anode portion and a cathode portion.
  • the anode portion includes an anode body which is a porous sintered body and an anode wire.
  • the cathode lead terminal includes a corrugated portion including a plurality of ridges and a plurality of valleys.
  • One surface of the corrugated portion is connected to the cathode portion by a conductive member.
  • the other surface of the corrugated portion is in contact with the exterior resin.
  • the shape of the corrugated plate is not particularly limited, and may include a plurality of ridges and a plurality of valleys.
  • the wave shape of the corrugated portion may be a wave composed of smooth curves (sine wave) or a straight line. It may be a wave composed of (for example, a triangular wave) or a wave composed of a curved line and a straight line.
  • the tops of the ridges and / or valleys may be flat.
  • the plurality of ridges and the plurality of valleys of the corrugated plate may be alternately arranged along the direction D2 orthogonal to the direction D1 in which the anode wire extends. According to this configuration, the adhesion between the conductive member or the exterior resin and the corrugated portion is unlikely to decrease even under the influence of thermal expansion. Further, the corrugated plate-like portion exerts a high anchoring effect at the contact portion with the exterior resin. In particular, when a groove extending along the D1 direction is formed on the surface of the anode body, the adhesion to the corrugated plate-like portion becomes higher.
  • the plurality of ridges and the plurality of valleys of the corrugated plate may be alternately arranged along the direction D1 in which the anode wire extends. According to this configuration, the adhesion between the conductive member or the exterior resin and the corrugated portion is unlikely to decrease even under the influence of thermal expansion. Further, the corrugated plate-like portion exerts a high anchoring effect at the contact portion with the exterior resin. In particular, when the anode is rectangular parallelepiped and the length in the D1 direction is longer than the length in the D2 direction, the number of roofs and valleys increases, making the anchor more resistant to thermal expansion and higher. It works.
  • the surface facing the corrugated portion may be flat.
  • the conductive member may have different thicknesses at the ridge portion and the valley portion of the corrugated plate-like portion. According to these configurations, the adhesion between the conductive member or the exterior resin and the corrugated portion is unlikely to decrease even under the influence of thermal expansion. Further, the corrugated plate-like portion exerts a high anchoring effect at the contact portion with the exterior resin. In particular, even when a large amount of conductive members are used to increase the adhesive strength, it becomes easy to keep the distance between the plurality of valleys of the corrugated plate-shaped portion and the cathode portion of the capacitor element at a constant distance. ..
  • anode body is formed by pressure molding the particles of the material using a mold having a flat surface when forming the porous sintered body.
  • the anode body may be columnar.
  • the anode body may be columnar or rectangular parallelepiped.
  • a plurality of grooves arranged in a stripe shape may be formed on the surface of the anode body. According to this configuration, the adhesion between the conductive member or the exterior resin and the corrugated portion is unlikely to decrease even under the influence of thermal expansion. Further, the corrugated plate-like portion exerts a high anchoring effect at the contact portion with the exterior resin.
  • the capacitor The accuracy of the facing arrangement between the cathode portion of the element and the corrugated plate-shaped portion of the cathode lead terminal is improved, and the thickness of the conductive member interposed between the two can be made thin and uniform.
  • the direction in which the plurality of grooves of the anode body extends and the direction in which the plurality of valley portions of the corrugated plate-like portion extend may be parallel, and further, the plurality of grooves of the anode body and the plurality of corrugated plate-like portions.
  • the corrugated portion may be arranged so as to face the valley portion of the.
  • the anode may have a rectangular parallelepiped shape in which a plurality of stripe-arranged grooves are formed on the surface. Further, in these cases, each of the grooves arranged in a stripe shape may extend along the direction in which the anode wire extends.
  • the corrugated portion may be formed by pressing a metal sheet. Further, the height of the plurality of ridges may be larger than twice the thickness of the metal sheet. According to this configuration, deterioration of the characteristics of the electrolytic capacitor due to thermal expansion of the corrugated plate-shaped portion can be particularly suppressed.
  • the electrolytic capacitors of the present disclosure include capacitor elements, anode lead terminals, cathode lead terminals, exterior resins, and conductive members. Examples of these will be described below.
  • the anode lead terminal includes an anode terminal portion exposed on the bottom surface of the electrolytic capacitor and a wire connection portion connected to the anode terminal portion.
  • the wire connection is connected to the anode wire.
  • the material of the anode lead terminal may be any material that can be used as the material of the anode lead terminal of the electrolytic capacitor.
  • a known material for the anode lead terminal used in the electrolytic capacitor may be used.
  • the anode lead terminal may be formed by processing a metal sheet (including a metal plate and a metal foil) made of a metal (copper, copper alloy, etc.).
  • the cathode lead terminal is not particularly limited, and a known cathode lead terminal may be used.
  • the cathode lead terminal may be formed by processing one metal sheet by a known metal processing method.
  • the cathode lead terminal may be formed of the metal sheet exemplified as the material of the anode lead terminal.
  • the capacitor element includes an anode portion and a cathode portion.
  • the capacitor element is not particularly limited, and a capacitor element used in a known solid electrolytic capacitor or a capacitor element having a similar configuration may be used.
  • the anode portion includes an anode body having a dielectric layer formed on its surface and an anode wire.
  • the anode is a porous sintered body.
  • the cathode portion includes an electrolyte layer and a cathode layer.
  • the electrolyte layer is arranged between the dielectric layer and the cathode layer formed on the surface of the anode body.
  • the anode body is formed by sintering the particles as a material.
  • the above-mentioned particles include particles of a valve-acting metal, particles of an alloy containing a valve-acting metal, and particles of a compound containing a valve-acting metal. Only one kind of these particles may be used, or two or more kinds of these particles may be mixed and used.
  • the valve acting metal titanium (Ti), tantalum (Ta), niobium (Nb) and the like are used.
  • the anode body may be produced by the following method. First, a part of the anode wire is embedded in the metal powder which is the material of the anode body, and the metal powder is pressure-molded into a columnar shape (for example, a rectangular parallelepiped shape). Then, the anode body is formed by sintering the powder of the metal. In this way, an anode body in which a part of the anode wire is embedded can be produced.
  • the dielectric layer formed on the surface of the anode is not particularly limited, and may be formed by a known method.
  • the dielectric layer may be formed by immersing the anode body in the chemical conversion liquid and anodizing the surface of the anode body.
  • the dielectric layer may be formed by heating the anode body in an atmosphere containing oxygen to oxidize the surface of the anode body.
  • the anode wire may be a wire made of metal (anode wire).
  • materials for the anode wire include the above-mentioned valve acting metals, copper, aluminum, aluminum alloys and the like.
  • a part of the anode wire is embedded in the anode body, and the rest protrudes from the anode body.
  • the anode wire has a rod-like shape.
  • the tip of the anode wire protruding from the anode body may have a cross-sectional shape different from that of other portions.
  • the electrolyte layer is not particularly limited, and the electrolyte layer used in a known solid electrolytic capacitor may be applied.
  • the electrolyte layer may be read as a solid electrolyte layer, and the electrolytic capacitor may be read as a solid electrolytic capacitor.
  • the electrolyte layer may be a laminate of two or more different electrolyte layers.
  • the electrolyte layer is arranged so as to cover at least a part of the dielectric layer.
  • the electrolyte layer may be formed by using a manganese compound or a conductive polymer.
  • conductive polymers include polypyrrole, polythiophene, polyaniline, and derivatives thereof. These may be used alone or in combination of a plurality of types. Further, the conductive polymer may be a copolymer of two or more kinds of monomers.
  • the derivative of the conductive polymer means a polymer having a conductive polymer as a basic skeleton.
  • examples of derivatives of polythiophene include poly (3,4-ethylenedioxythiophene) and the like.
  • Dopants may be added to the conductive polymer.
  • the dopant can be selected according to the conductive polymer, and a known dopant may be used.
  • Examples of dopants include naphthalene sulfonic acid, p-toluenesulfonic acid, polystyrene sulfonic acid, and salts thereof.
  • An example electrolyte layer is formed using polystyrene sulfonic acid (PSS) -doped poly (3,4-ethylenedioxythiophene) (PEDOT).
  • the electrolyte layer containing the conductive polymer may be formed by polymerizing the raw material monomer on the dielectric layer. Alternatively, it may be formed by applying a liquid containing a conductive polymer (and a dopant if necessary) to the dielectric layer and then drying it.
  • the cathode layer may be a conductive layer formed on the electrolyte layer, or may be, for example, a conductive layer formed so as to cover the electrolyte layer.
  • the cathode layer may include a carbon layer formed on the electrolyte layer and a metal paste layer formed on the carbon layer.
  • the carbon layer may be formed of a conductive carbon material such as graphite and a resin.
  • the metal paste layer may be formed of metal particles (for example, silver particles) and a resin, or may be formed of, for example, a known silver paste.
  • the cathode layer is connected to the corrugated portion of the cathode lead terminal by a conductive member. That is, the cathode layer is electrically connected to the cathode lead terminal.
  • the conductive member may be formed of metal particles (for example, silver particles) and a resin, or may be formed of, for example, a known silver paste.
  • the exterior resin is arranged around the capacitor element so that the capacitor element is not exposed on the surface of the electrolytic capacitor. Further, the exterior resin insulates the anode lead terminal and the cathode lead terminal.
  • a known exterior resin used for an electrolytic capacitor may be applied to the exterior resin.
  • the exterior resin may be formed by using an insulating resin material used for sealing the capacitor element. Examples of exterior resins include epoxy resins, phenolic resins, silicone resins, melamine resins, urea resins, alkyd resins, polyurethanes, polyimides, unsaturated polyesters and the like.
  • the exterior resin may contain a substance other than the resin (such as an inorganic filler).
  • FIG. 1 A cross-sectional view of the electrolytic capacitor 100 of the first embodiment is schematically shown in FIG. Further, a perspective view of the corrugated plate-shaped portion 132 is schematically shown in FIG.
  • the electrolytic capacitor 100 includes a capacitor element 110, an anode lead terminal 120, a cathode lead terminal 130, an exterior resin 101, and a conductive member 141.
  • the capacitor element 110 includes an anode portion 111 and a cathode portion 115.
  • the anode portion 111 includes an anode body 113 having a dielectric layer 114 formed on its surface, and an anode wire 112.
  • the anode body 113 is a rectangular parallelepiped porous sintered body. A part of the anode wire 112 on one end side is embedded in the anode body 113, and the other part of the anode wire 112 protrudes from the anode body 113.
  • the cathode portion 115 includes an electrolyte layer 116 arranged so as to cover the dielectric layer 114, and a cathode layer 117.
  • the cathode layer 117 includes, for example, a carbon layer formed on the electrolyte layer 116 and a metal particle layer formed on the carbon layer.
  • the metal particle layer is, for example, a layer formed by using a metal paste.
  • the anode lead terminal 120 includes an anode terminal portion 121 and a wire connecting portion 122.
  • the anode terminal portion 121 is exposed on the bottom surface 100b of the electrolytic capacitor 100.
  • the wire connecting portion 122 is connected to the anode terminal portion 121.
  • the wire connecting portion 122 is connected to the anode wire 112. That is, the anode lead terminal 120 is electrically connected to the anode portion 111 of the capacitor element 110.
  • the anode lead terminal 120 shown in FIG. 1 is an example, and may have another shape as long as it functions as the anode lead terminal 120.
  • the cathode lead terminal 130 includes a cathode terminal portion 131, a corrugated plate-shaped portion 132, and a connecting portion 133.
  • the cathode terminal portion 131 is exposed on the bottom surface 100b of the electrolytic capacitor 100.
  • the connecting portion 133 connects the cathode terminal portion 131 and the corrugated plate-shaped portion 132.
  • Each of the anode lead terminal 120 and the cathode lead terminal 130 can be formed by processing one metal sheet by a known metal processing method.
  • the surface of the electrolytic capacitor 100 opposite to the bottom surface 100b may be referred to as the top surface 100t of the electrolytic capacitor 100.
  • the bottom surface 100b is a surface on which the anode terminal portion 121 and the cathode terminal portion 131 are exposed.
  • the corrugated plate-shaped portion 132 is embedded in the exterior resin 101.
  • One surface of the corrugated portion 132 is electrically connected to the cathode portion 115 (cathode layer 117) by the conductive member 141.
  • the other surface of the corrugated portion 132 is in contact with the exterior resin 101.
  • the conductive member 141 is a layer formed by using, for example, a metal paste.
  • the corrugated portion 132 includes a plurality of ridge portions 132r and a plurality of valley portions 132v.
  • the portion of the electrolytic capacitor 100 having a convex shape toward the outside is referred to as a ridge portion 132r
  • the portion having a convex shape toward the capacitor element 110 is referred to as a valley portion 132v.
  • the plurality of ridge portions 132r and the plurality of valley portions 132v are alternately arranged along the direction D1 in which the anode wire 112 extends.
  • each of the plurality of ridge portions 132r arranged in a stripe shape extends along the direction D2 orthogonal to the direction D1 in which the anode wire 112 extends.
  • each of the plurality of valley portions 132v arranged in a striped pattern extends along the direction D2 orthogonal to the extending direction D1 of the anode wire 112.
  • the direction D2 shown in this embodiment is parallel to the bottom surface 100b.
  • the conductive member 141 is arranged so as to fill the space between the cathode layer 117 and the corrugated plate-shaped portion 132. Therefore, the thickness of the conductive member 141 varies depending on the location according to the shape of the corrugated plate-shaped portion 132. More specifically, the conductive member 141 is thick at the ridge portion 132r of the corrugated plate-shaped portion 132 and thin at the valley portion 132v.
  • the conductive member 141 may be arranged in other portions in addition to the corrugated plate-shaped portion 132 and the cathode layer 117. For example, as shown in FIG. 1, the conductive member 141 may also be arranged between the cathode layer 117 and a part of the connecting portion 133.
  • FIG. 3 shows a cross-sectional view of the corrugated plate-shaped portion 132 along the direction D1.
  • the distance from the lowermost portion of the valley portion 132v of the corrugated plate-shaped portion 132 to the uppermost portion of the ridge portion 132r is defined as the height H of the ridge portion 132r.
  • the height H of the ridge portion 132r is preferably larger than twice the thickness T of the metal sheet constituting the corrugated plate-shaped portion 132. According to this configuration, it is possible to shorten the length in which the metal sheets constituting the corrugated plate-shaped portion 132 are continuously present along the direction D1. Therefore, the influence of thermal expansion of the corrugated plate-shaped portion 132 can be particularly suppressed.
  • the shape and arrangement of the cathode lead terminal 130 is not limited to the shape and arrangement shown in FIG. 1, and may be other shapes and arrangements.
  • FIG. 1 shows an example in which the corrugated plate-shaped portion 132 is arranged so as to face the upper surface (the surface on the upper surface 100t side) of the capacitor element 110.
  • the corrugated plate-shaped portion 132 may be arranged so as to face the lower surface (the surface on the bottom surface 100b side) of the capacitor element 110.
  • the electrolytic capacitor 100 includes a cathode lead terminal 130 including a corrugated plate-shaped portion 132. Therefore, deterioration of the characteristics of the electrolytic capacitor 100 due to thermal expansion of the cathode lead terminal 130 can be suppressed.
  • the corrugated plate-shaped portion 132 shown in FIGS. 1 and 2 has a curved shape (sinusoidal shape) having a smooth cross section perpendicular to the direction D2.
  • the corrugated portion may have other shapes.
  • a perspective view of another example of the corrugated portion is schematically shown in FIGS. 4 and 5.
  • the corrugated plate-shaped portion 132a shown in FIG. 4 has a triangular corrugated cross section perpendicular to the direction D2.
  • the plurality of ridge portions 132r and the plurality of valley portions 132v of the corrugated plate-shaped portion 132a are alternately arranged along the direction D1 in which the anode wire 112 extends.
  • the plurality of ridge portions 132r and the plurality of valley portions 132v of the corrugated plate-shaped portion 132b shown in FIG. 5 are alternately arranged along the direction D2 perpendicular to the direction D1 in which the anode wire 112 extends.
  • FIG. 5 shows an example in which the corrugated plate-shaped portion 132b has a triangular corrugated cross-sectional shape
  • the corrugated plate-shaped portion 132b may have a sinusoidal cross-sectional shape.
  • the height H of the ridge portion 132r becomes smaller as it approaches the connecting portion 133.
  • the height H of the ridge portion 132r of the portion connected to the cathode layer 117 by the conductive member 141 may be constant.
  • a plurality of grooves arranged in a stripe shape may be formed on the surface of the anode body 113.
  • a cross-sectional view of such an anode 113 and an anode wire 112 is shown in FIG.
  • the cross-sectional view of FIG. 6 is a cross-sectional view perpendicular to the direction D1 in which the anode wire 112 extends. Further, FIG. 6 also shows the arrangement of an example of the corrugated plate-shaped portion 132b.
  • Grooves 113v are formed in stripes on the lower surface (the surface on the bottom surface 100b side) and the upper surface (the surface on the upper surface 100t side) of the anode body 113 in FIG.
  • the corrugated plate-shaped portion 132b of FIG. 6 is arranged so that the valley portion 132v of the corrugated plate-shaped portion 132b faces the groove 113v of the anode body 113.
  • the groove 113v and the valley 132v each extend along the direction D1 in which the anode wire 112 extends.
  • illustrations other than the anode wire 112, the anode body 113, and the corrugated plate-shaped portion 132b are omitted for ease of understanding.
  • the dielectric layer 114, the electrolyte layer 116, the cathode layer 117, and the conductive member 141 are present between the anode body 113 and the corrugated plate-shaped portion 132b.
  • the capacitor element 110, the anode lead terminal 120, and the cathode lead terminal 130 are prepared.
  • the method for manufacturing the capacitor element 110 is not particularly limited, and the capacitor element 110 can be manufactured by a known method.
  • the anode lead terminal 120 and the cathode lead terminal 130 can be formed by a known metal processing method.
  • the anode wire 112 and the anode lead terminal 120 are connected, and the cathode layer 117 and the cathode lead terminal 130 are connected.
  • the anode wire 112 and the anode lead terminal 120 may be connected, for example, by welding the tip end portion of the anode lead terminal 120 and the wire connecting portion 122.
  • the connection between the cathode layer 117 and the cathode lead terminal 130 can be performed by, for example, the following method. First, a metal paste is applied to the corrugated plate-shaped portion 132 of the cathode lead terminal 130 and / or the surface of the cathode layer 117 of the capacitor element 110. Next, after adhering the two via the metal paste, the metal paste is converted into the conductive member 141 by heating. In this way, the cathode layer 117 and the cathode lead terminal 130 can be connected.
  • the capacitor element is sealed with the exterior resin 101.
  • the sealing step can be carried out by a known method.
  • the electrolytic capacitor 100 can be manufactured.
  • the other electrolytic capacitors disclosed in the present disclosure can also be manufactured by the same manufacturing method.
  • This disclosure can be used for electrolytic capacitors.
  • Electrolytic capacitor 101 Exterior resin 110: Capacitor element 111: Anode portion 112: Anode wire 113: Anode body 113v: Groove 115: Cathode portion 120: Anode lead terminal 130: Cathode lead terminals 132, 132a, 132b: Corrugated plate Part 132r: Ridge part 132v: Valley part 141: Conductive members D1, D2: Direction H: Height T: Thickness

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Fixed Capacitors And Capacitor Manufacturing Machines (AREA)
PCT/JP2021/010996 2020-03-25 2021-03-18 電解コンデンサ WO2021193329A1 (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2022510025A JPWO2021193329A1 (enrdf_load_stackoverflow) 2020-03-25 2021-03-18

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2020-054813 2020-03-25
JP2020054813 2020-03-25

Publications (1)

Publication Number Publication Date
WO2021193329A1 true WO2021193329A1 (ja) 2021-09-30

Family

ID=77890256

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2021/010996 WO2021193329A1 (ja) 2020-03-25 2021-03-18 電解コンデンサ

Country Status (2)

Country Link
JP (1) JPWO2021193329A1 (enrdf_load_stackoverflow)
WO (1) WO2021193329A1 (enrdf_load_stackoverflow)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0276832U (enrdf_load_stackoverflow) * 1988-11-30 1990-06-13
JPH0428424U (enrdf_load_stackoverflow) * 1990-06-28 1992-03-06
JP2006237195A (ja) * 2005-02-24 2006-09-07 Sanyo Electric Co Ltd 固体電解コンデンサ
JP2013110343A (ja) * 2011-11-24 2013-06-06 Sanyo Electric Co Ltd 固体電解コンデンサ及びその製造方法
WO2018061535A1 (ja) * 2016-09-29 2018-04-05 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

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0276832U (enrdf_load_stackoverflow) * 1988-11-30 1990-06-13
JPH0428424U (enrdf_load_stackoverflow) * 1990-06-28 1992-03-06
JP2006237195A (ja) * 2005-02-24 2006-09-07 Sanyo Electric Co Ltd 固体電解コンデンサ
JP2013110343A (ja) * 2011-11-24 2013-06-06 Sanyo Electric Co Ltd 固体電解コンデンサ及びその製造方法
WO2018061535A1 (ja) * 2016-09-29 2018-04-05 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

Also Published As

Publication number Publication date
JPWO2021193329A1 (enrdf_load_stackoverflow) 2021-09-30

Similar Documents

Publication Publication Date Title
CN111724994B (zh) 固体电解电容器
WO2018123492A1 (ja) 固体電解コンデンサおよびその製造方法
US20250046526A1 (en) Electrolytic capacitor
JP7029666B2 (ja) 固体電解コンデンサ
WO2021193329A1 (ja) 電解コンデンサ
JP5340092B2 (ja) 固体電解コンデンサ
JP7576742B2 (ja) 電解コンデンサおよびその製造方法
JP7706065B2 (ja) 電解コンデンサ
JPWO2019065077A1 (ja) 電解コンデンサ
JP6796756B2 (ja) 固体電解コンデンサ
JP2011176232A (ja) 固体電解コンデンサ及びその製造方法
JP7029670B2 (ja) 電解コンデンサ
US12027322B2 (en) Electrolytic capacitor
US12148576B2 (en) Electrolytic capacitor
US12255027B2 (en) Electrolytic capacitor
WO2023189222A1 (ja) 電極箔、コンデンサ素子、および、固体電解コンデンサ
US20250104931A1 (en) Electrolytic capacitor
CN115132496B (zh) 电解电容器
CN112466667B (zh) 固体电解电容器以及固体电解电容器的制造方法
CN120418908A (zh) 固体电解电容器
WO2024142768A1 (ja) 固体電解コンデンサ、および固体電解コンデンサの製造方法
JP2024136855A (ja) 固体電解コンデンサ
WO2025023161A1 (ja) 固体電解コンデンサおよび固体電解コンデンサの製造方法
WO2024143218A1 (ja) 電解コンデンサ
JP2025039520A (ja) コンデンサ素子、固体電解コンデンサ、および固体電解コンデンサの製造方法

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 21776655

Country of ref document: EP

Kind code of ref document: A1

ENP Entry into the national phase

Ref document number: 2022510025

Country of ref document: JP

Kind code of ref document: A

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 21776655

Country of ref document: EP

Kind code of ref document: A1