JP3202040B2 - Solid electrolytic capacitors - Google Patents

Solid electrolytic capacitors

Info

Publication number
JP3202040B2
JP3202040B2 JP18922391A JP18922391A JP3202040B2 JP 3202040 B2 JP3202040 B2 JP 3202040B2 JP 18922391 A JP18922391 A JP 18922391A JP 18922391 A JP18922391 A JP 18922391A JP 3202040 B2 JP3202040 B2 JP 3202040B2
Authority
JP
Japan
Prior art keywords
foil
separator
anode foil
cathode foil
anode
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Fee Related
Application number
JP18922391A
Other languages
Japanese (ja)
Other versions
JPH0513286A (en
Inventor
昭彦 小松
雅良 伊藤
努 宮下
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Rubycon Corp
Original Assignee
Rubycon Corp
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 Rubycon Corp filed Critical Rubycon Corp
Priority to JP18922391A priority Critical patent/JP3202040B2/en
Publication of JPH0513286A publication Critical patent/JPH0513286A/en
Application granted granted Critical
Publication of JP3202040B2 publication Critical patent/JP3202040B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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  • Fixed Capacitors And Capacitor Manufacturing Machines (AREA)
  • Polyoxymethylene Polymers And Polymers With Carbon-To-Carbon Bonds (AREA)

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【0001】[0001]

【産業上の利用分野】本発明は、製造工程が簡単で特性
の安定した固体電解コンデンサに関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a solid electrolytic capacitor having a simple manufacturing process and stable characteristics.

【0002】[0002]

【従来の技術】近年、電子機器のデジタル化に伴って、
高周波特性の良好なコンデンサへの要求が高まってい
る。しかし、一般の電解液を用いた電解コンデンサの場
合、イオン伝導によるため高周波での容量減少が極めて
大きく、また比抵抗も極端に低くすることはできないの
で、高周波でのインピーダンスが大きいという問題点が
ある。一方、二酸化マンガン等を用いた従来の固体電解
コンデンサでは、前述のような問題点はないが、二酸化
マンガンの比抵抗が十分には低くないので、高周波での
インピーダンスにまだ問題がある。そこで、最近では有
機半導体を用いた固体電解コンデンサが広く研究されて
きている。
2. Description of the Related Art In recent years, with the digitization of electronic devices ,
There is an increasing demand for capacitors having good high-frequency characteristics. However, in the case of an electrolytic capacitor using a general electrolytic solution, there is a problem that the capacitance at a high frequency is extremely reduced due to ion conduction, and the specific resistance cannot be extremely reduced. is there. On the other hand, the conventional solid electrolytic capacitor using manganese dioxide or the like does not have the above-described problems, but has a problem in high-frequency impedance because the specific resistance of manganese dioxide is not sufficiently low. Therefore, recently, solid electrolytic capacitors using organic semiconductors have been widely studied.

【0003】[0003]

【発明が解決しようとする課題】有機半導体を固体電解
質として用いた固体電解コンデンサのうち、ピロール系
の導電性高分子を用いたものとしては、電極箔を板状と
した技術が種々開示されているが、体積効率が悪く形状
が大形化してしまうという問題があり、また、陰極とし
て銀ペーストを使用するので、コストが高くなるという
問題点もあった。
Among the solid electrolytic capacitors using an organic semiconductor as a solid electrolyte, various techniques using a pyrrole-based conductive polymer as a plate-like electrode foil have been disclosed. However, there is a problem that the volume efficiency is poor and the shape is enlarged, and there is also a problem that the cost is increased because a silver paste is used as the cathode.

【0004】また、陽極箔と陰極箔とを巻回したコンデ
ンサ素子を用いた技術もいくつか開示されている。例え
ば、特開昭64−24410号公報では捲回型アルミニ
ウム電解コンデンサ素子を導電性高分子化合物のモノマ
ー溶液に浸漬した後、有機酸またはその塩を共存させた
酸化剤溶液に浸漬して重合させる方法が開示されてい
る。しかし、この方法では温度が高いと重合が早く進む
ため素子の表面近くが優先的に重合して固化してしま
い、素子内部まで均一に重合させることが難しい。ま
た、低温にすれば重合に長時間を要するという問題点が
ある。
Some techniques using a capacitor element in which an anode foil and a cathode foil are wound are also disclosed. For example, in JP-A-64-24410, a wound type aluminum electrolytic capacitor element is immersed in a monomer solution of a conductive polymer compound, and then immersed in an oxidizing agent solution coexisting with an organic acid or a salt thereof to be polymerized. A method is disclosed. However, in this method, when the temperature is high, polymerization proceeds rapidly, so that the vicinity of the surface of the element is preferentially polymerized and solidified, and it is difficult to uniformly polymerize the inside of the element. Further, when the temperature is lowered, there is a problem that a long time is required for polymerization.

【0005】特開平2−186616号公報では、陽極
箔と陰極箔との間に多孔質セパレータを介在させて巻回
した素子を用い、含浸用ピロール溶液を含浸し、酸化剤
溶液に浸漬してピロールの化学重合を行った後、さらに
電解重合を行う方法が開示されている。しかし、この方
法は工程が複雑であり、また、電解重合の際にモノマー
が素子内部まで十分に供給され難いという問題点を有す
る。
In Japanese Patent Application Laid-Open No. 2-186616, an element wound with a porous separator interposed between an anode foil and a cathode foil is used, impregnated with a pyrrole solution for impregnation, and immersed in an oxidizing agent solution. A method is disclosed in which, after performing chemical polymerization of pyrrole, electrolytic polymerization is further performed. However, this method has a problem that the steps are complicated and that it is difficult for the monomer to be sufficiently supplied to the inside of the device during the electrolytic polymerization.

【0006】また、特開平2−62028号公報には、
やはり捲回型コンデンサ素子を電解重合溶液中に浸漬し
て陰極箔を正極とし陽極箔を負極として電解重合する方
法が開示されている。しかし、電解重合の装置及び条件
が複雑であるばかりか、電解重合時に陽極箔を損傷する
恐れがあり。また、導電性高分子は正極側から形成され
るので、負極の陽極箔のエッチング構造の中まで均一に
形成することは難しい。本発明は上述の点に鑑みてなさ
れたものであり、その目的とするところは製造工程が簡
単で特性の良好な固体電解コンデンサを提供することで
ある。
Further, Japanese Patent Application Laid-Open No. 2-62028 discloses that
Also disclosed is a method of immersing a wound capacitor element in an electrolytic polymerization solution to perform electrolytic polymerization using a cathode foil as a positive electrode and an anode foil as a negative electrode. However, not only is the apparatus and conditions for electrolytic polymerization complicated, but also the anode foil may be damaged during the electrolytic polymerization. Further, since the conductive polymer is formed from the positive electrode side, it is difficult to uniformly form the etching structure of the anode foil of the negative electrode. The present invention has been made in view of the above points, and an object of the present invention is to provide a solid electrolytic capacitor having a simple manufacturing process and excellent characteristics.

【0007】[0007]

【課題を解決するための手段】上記目的による本発明で
は、陰極箔と、陽極酸化により酸化皮膜を形成した陽極
箔とを巻回したコンデンサ素子に導電性高分子よりなる
固体電解質を形成した固体電解コンデンサにおいて、
記陰極箔と陽極箔との幅方向中央部に、これら両箔より
も幅の狭い絶縁性支持部材が配設されることにより、該
絶縁性支持部材の両側に陰極箔と陽極箔とが10μm以
上の間隔をもって直接対向する空隙部が形成され、この
空隙部内に、前記導電性高分子からなる固体電解質が充
填されていることを特徴としている。 また本発明では、
陰極箔と、陽極酸化により酸化皮膜を形成した陽極箔と
を巻回したコンデンサ素子に導電性高分子よりなる固体
電解質を形成した固体電解コンデンサにおいて、前記陰
極箔と陽極箔との間に、これら箔の長さ方向に所定間隔
をおいて多数の絶縁性支持部材が配設されることによ
り、これら絶縁性支持部材間に、前記陰極箔と陽極箔と
が10μm以上の間隔をもって直接対向する空隙部が形
成され、この空隙部内に、前記導電性高分子からなる固
体電解質が充填されていることを特徴としている。 さら
に本発明では、 陰極箔と、陽極酸化により酸化皮膜を
形成した陽極箔とをセパレータを介して巻回したコンデ
ンサ素子に導電性高分子よりなる固体電解質を形成した
固体電解コンデンサにおいて、前記陰極箔とセパレータ
との間、および前記陽極箔とセパレータとの間に各々厚
さが10μm以上の空隙部が形成され、この空隙部内に
前記導電性高分子よりなる固体電解質が充填されたこと
を特徴としている。また、前記セパレータがエンボス加
工されることにより、前記陰極箔とセパレータとの間、
および前記陽極箔とセパレータとの間に各々厚さが10
μm以上の空隙部が形成され、この空隙部内に前記導電
性高分子よりなる固体電解質が充填されたことを特徴と
する。 さらに、前記陰極箔および陽極箔がエンボス加工
されることにより、前記陰極箔とセパレータとの間、お
よび前記陽極箔とセパレータとの間に各々厚さが10μ
m以上の空隙部が形成され、この空隙部内に前記導電性
高分子よりなる固体電 解質が充填されたことを特徴とす
る。
According to the present invention for the above objects, a solid electrolyte comprising a conductive polymer is formed on a capacitor element in which a cathode foil and an anode foil having an oxide film formed by anodic oxidation are wound. in the electrolytic capacitor, before
At the center in the width direction of the cathode foil and anode foil,
By providing a narrow insulating support member,
Cathode foil and anode foil on both sides of insulating support
A gap is formed that directly opposes with an upper space.
The voids are filled with a solid electrolyte made of the conductive polymer.
It is characterized by being packed. In the present invention,
Cathode foil and anode foil with oxide film formed by anodic oxidation
Solid made of conductive polymer
In a solid electrolytic capacitor formed with an electrolyte,
A certain distance between the electrode foil and the anode foil in the length direction of these foils
And a large number of insulating support members
Between the insulating support members, the cathode foil and the anode foil.
The gaps directly facing each other with an interval of 10 μm or more
And a solid made of the conductive polymer is formed in the space.
It is characterized by being filled with a body electrolyte. Further
In the present invention, the cathode foil, the solid electrolytic capacitor in which a solid electrolyte made of a conductive polymer is formed on a capacitor element wound with a separator and an anode foil having an oxide film formed by anodic oxidation, wherein the cathode foil And separator
And between the anode foil and the separator, respectively.
Is formed at a gap of 10 μm or more.
It is characterized by being filled with a solid electrolyte made of the conductive polymer . Also, the separator is embossed.
By being worked, between the cathode foil and the separator,
And a thickness of 10 between the anode foil and the separator.
μm or more is formed, and the conductive
Characterized by being filled with a solid electrolyte made of a conductive polymer
I do. Further, the cathode foil and the anode foil are embossed.
As a result, between the cathode foil and the separator,
And a thickness of 10 μm between the anode foil and the separator.
m is formed, and the conductive material is formed in the space.
It is characterized in that the solid electrolytic membrane made of polymer is filled
You.

【0008】[0008]

【作用】本発明によれば、10μm以上の空隙部を、導
電性高分子材料の導入の妨げとなるようないかなる障害
物もその内部に存在しないように形成することにより、
固体電解質形成時にこの空隙部内に多量の導電性高分子
材料を送り込むことができるので、特性の安定した固体
電解コンデンサを得ることができる。 空隙部は10μm
より小さいと導電性高分子の充填がうまくいかないので
10μm以上が望ましく、とりわけ50μm〜200μ
m程度が特に望ましい。
According to the present invention, a gap of 10 μm or more is introduced.
Any obstacles that hinder the introduction of conductive polymer materials
By forming things so that they do not exist inside,
When forming a solid electrolyte, a large amount of conductive polymer
Solid material with stable properties as material can be sent
An electrolytic capacitor can be obtained. The gap is 10 μm
If the particle size is smaller than 10 μm, the filling of the conductive polymer is not successful.
m is particularly desirable.

【0009】[0009]

【実施例】以下、添付図面に基づいて本発明の好適な実
施例を詳細に説明する。 実施例1 引出しリード線10を接続した陰極箔12の両面中央部
に厚さ50μmのポリエステル製粘着テープ14(絶縁
性支持部材)を貼りつけた後(第1図参照)、陽極箔
(図示せず)とともに巻回して25V47μF(5φ×
11l)用の巻回型コンデンサ素子を作成した。粘着テ
ープ14によって、陰極箔と陽極箔との間に50μmの
空隙部が確保される。
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the present invention will be described below in detail with reference to the accompanying drawings. Example 1 After affixing a 50 μm-thick polyester adhesive tape 14 (insulating support member) to the center of both surfaces of a cathode foil 12 to which a lead wire 10 was connected (see FIG. 1), an anode foil (not shown) was used. And 25V47μF (5φ ×
11l) was prepared as a wound type capacitor element. By the adhesive tape 14, 50 μm between the cathode foil and the anode foil
A void is secured.

【0010】実施例2 引出しリード線10を接続した陰極箔12の両面に、幅
方向にかつ長さ方向に所定間隔をおいて厚さ200μm
程の紫外線硬化樹脂16(絶縁性支持部材)を塗布した
後、紫外線を照射して樹脂を硬化させた(第2図参
照)。次に、この陰極箔12を陽極箔(図示せず)とと
もに巻回して25V47μF(5φ×11l)用の巻回
型コンデンサ素子を作製した。紫外線硬化樹脂16によ
って陰極箔12と陽極箔との間に厚さ200μmの空隙
部が形成される。
EXAMPLE 2 A thickness of 200 μm is formed on both surfaces of a cathode foil 12 to which a lead wire 10 is connected, at predetermined intervals in the width and length directions.
After applying the ultraviolet curable resin 16 (insulating support member), the resin was cured by irradiating ultraviolet rays (see FIG. 2). Next, this cathode foil 12 was wound together with an anode foil (not shown) to produce a wound capacitor element for 25 V 47 μF (5 × 11 l). A gap of 200 μm in thickness between the cathode foil 12 and the anode foil due to the ultraviolet curing resin 16
A part is formed.

【0011】実施例3 陽極箔と陰極箔を、エンボス加工をして厚さを10μm
アップさせた50μm厚のセパレータを介して巻回し2
5V47μF(5φ×11l)の巻回型コンデンサ素子
を作製した。エンボス加工によって陰極箔、陽極箔とセ
パレータとの間に各々空隙部が確保される。
Example 3 An anode foil and a cathode foil were embossed to a thickness of 10 μm.
Wound through the 50 μm thick separator
A winding type capacitor element of 5V47μF (5φ × 11l) was manufactured. Embossing secures voids between the cathode foil, the anode foil and the separator .

【0012】実施例4 陽極箔用エッチド箔18を長さ方向に垂直に蛇腹状に折
りたたんでから引きのばしエンボス加工を行って、厚さ
を約100μm増加させた後(第3図参照)化成を行っ
て酸化皮膜を形成した。次に陰極箔(図示せず)も同様
にエンボス加工を行ってから、陽極箔及び陰極箔をセパ
レータを介して巻回し25V47μF(5φ×11l)
の巻回型コンデンサ素子を作製した(図示せず)。折り
たたみ、引きのばしとエンボス加工によって空隙部が確
保される。
Example 4 After the etched foil 18 for an anode foil is folded in a bellows shape perpendicularly to the longitudinal direction, the film is stretched and embossed to increase the thickness by about 100 μm (see FIG. 3). To form an oxide film. Next, the cathode foil (not shown) is also embossed in the same manner, and then the anode foil and the cathode foil are wound with a separator interposed therebetween, and 25 V 47 μF (5 × 11 l)
Was manufactured (not shown). A gap is secured by folding, stretching and embossing.

【0013】以上の様にして、作製したコンデンサ素子
をリン酸アンモニウム水溶液等の化成液中に浸漬し、陽
極箔裁断面や陽極リード引出し部などの再化成修復処理
をした。続いて、ドデシルベンゼンスルホン酸鉄(III
)25wt%と該ドデシルベンゼンスルホン酸鉄(III
)のモル数に対して3倍量のモル数のピロールを添加
した−50℃のメタノール溶液中に前記素子を浸漬し、
含浸させた後、25℃雰囲気中に20分間放置して導電
性高分子膜の重合を行った。その後、メタノールで洗浄
し90℃10分の乾燥を行ってから金属ケースに封入し
コンデンサとした。次に、85℃中で10V印加し3時
間のエージングを行った後、定格電圧を10Vとして諸
特性を測定した。
As described above, the produced capacitor element was immersed in a chemical conversion solution such as an aqueous solution of ammonium phosphate or the like, and a re-chemical conversion treatment was performed on the cut surface of the anode foil or the lead portion of the anode lead. Subsequently, iron dodecylbenzenesulfonate (III
) 25 wt% and the iron (III) dodecylbenzenesulfonate
), The element was immersed in a methanol solution at −50 ° C. to which 3 times the number of moles of pyrrole was added,
After the impregnation, the conductive polymer film was left standing in an atmosphere at 25 ° C. for 20 minutes to polymerize the conductive polymer film. Thereafter, the resultant was washed with methanol, dried at 90 ° C. for 10 minutes, and sealed in a metal case to obtain a capacitor. Next, after applying 10 V at 85 ° C. and performing aging for 3 hours, various characteristics were measured at a rated voltage of 10 V.

【0014】比較例 陽極箔と陰極箔とをセパレータを介して巻回し、通常の
25V47μF(5φ×11l)電解コンデンサ素子を
作製した。この素子をリン酸アンモニウム水溶液等の化
成液中に浸漬し、陽極箔裁断面や陽極リード引出し部な
どの再化成修復処理をした。続いて、ピロール4: パ
ラトルエンスルホン酸テトラエチルアンモニウム6:
メタノール2の溶液を含浸させた後、過硫酸アンモニウ
ム20wt%、パラトルエンスルホン酸テトラエチルア
ンモニウム10wt%を含む水溶液に1時間浸漬して重
合した。重合終了後メタノールで洗浄し、90℃10分
の乾燥を行ってから金属ケースに封入しコンデンサとし
た。次に、85℃中で10V印加し3時間のエージング
を行った後、定格電圧を10Vとして諸特性を測定し
た。実施例及び比較例として試作したコンデンサ特性を
表1に示した。
Comparative Example An anode foil and a cathode foil were wound with a separator interposed therebetween to produce a normal 25 V 47 μF (5 × 11 l) electrolytic capacitor element. The device was immersed in a chemical conversion solution such as an aqueous solution of ammonium phosphate or the like, and a rechemical conversion treatment was performed on the cut surface of the anode foil and the lead portion of the anode lead. Subsequently, pyrrole 4: tetraethylammonium paratoluenesulfonate 6:
After impregnation with a solution of methanol 2, the polymer was immersed in an aqueous solution containing 20% by weight of ammonium persulfate and 10% by weight of tetraethylammonium paratoluenesulfonate for 1 hour to polymerize. After completion of the polymerization, the resultant was washed with methanol, dried at 90 ° C. for 10 minutes, and then sealed in a metal case to obtain a capacitor. Next, after applying 10 V at 85 ° C. and performing aging for 3 hours, various characteristics were measured at a rated voltage of 10 V. Table 1 shows the characteristics of the prototype capacitors produced as examples and comparative examples.

【0015】[0015]

【表1】 [Table 1]

【0016】表1から明らかなように本発明による実施
例は陽極箔のエッチングピット内部にまで効果的に導電
性高分子が充填できるため、容量出現率が極めて高い。
そして、陽極箔と陰極箔の間に十分な量の導電性高分子
を存在させることができるので高周波での容量変化率や
ESRを低く抑えることができる。
As is clear from Table 1, in the embodiment according to the present invention, since the conductive polymer can be effectively filled into the etching pits of the anode foil, the capacity appearance rate is extremely high.
In addition, since a sufficient amount of the conductive polymer can be present between the anode foil and the cathode foil, the rate of change in capacitance at high frequency and the ESR can be suppressed.

【0017】以上、本発明につき好適な実施例を挙げて
種々説明したが、本発明はこの実施例に限定されるもの
ではなく、発明の精神を逸脱しない範囲において多くの
改変を施し得るのはもちろんのことである。例えば、陽
極箔は実施例では交流エッチングによる海綿状エッチン
グ構造のものを用いたが直流エッチングによるトンネル
型構造のものも利用できる。陰極箔としては、固体電解
コンデンサでは陰極容量が必要ないのでエッチングして
あってもしてなくても良い。また、重合方法について
も、実施例にあげた方法に限定されるものではなく、他
の方法を利用することもできる。
Although the present invention has been described in detail with reference to the preferred embodiments, the present invention is not limited to these embodiments, and it is noted that many modifications can be made without departing from the spirit of the invention. Of course. For example, the anode foil has a spongy etching structure by AC etching in the embodiment, but a tunnel type structure by DC etching can also be used. The cathode foil may or may not be etched since a solid electrolytic capacitor does not require a cathode capacity. Also, the polymerization method is not limited to the methods described in the examples, and other methods can be used.

【0018】[0018]

【発明の効果】本発明によれば、10μm以上の空隙部
を、導電性高分子材料の導入の妨げとなるようないかな
る障害物もその内部に存在しないように形成することに
より、固体電解質形成時にこの空隙部内に多量の導電性
高分子材料を送り込むことができるので、特性の安定し
た固体電解コンデンサを得ることができる。
According to the present invention, a gap of 10 μm or more is provided.
Must be used to prevent the introduction of conductive polymer materials.
To avoid obstacles inside
When the solid electrolyte is formed, a large amount of conductive
Since polymer material can be sent in, characteristics are stable.
A solid electrolytic capacitor can be obtained.

【図面の簡単な説明】[Brief description of the drawings]

【図1】絶縁性支持部材を取り付けた陰極箔の斜視図で
ある。
FIG. 1 is a perspective view of a cathode foil to which an insulating support member is attached.

【図2】絶縁性支持部材を取り付けた陰極箔の他の実施
例の斜視図である。
FIG. 2 is a perspective view of another embodiment of a cathode foil to which an insulating support member is attached.

【図3】折りたたみ、引きのばした状態の陽極箔の説明
図である。
FIG. 3 is an explanatory view of an anode foil in a folded and stretched state.

【符号の説明】[Explanation of symbols]

10 引出しリード線 12 陰極箔 14 粘着テープ 16 紫外線硬化樹脂 18 陽極箔 DESCRIPTION OF SYMBOLS 10 Lead wire 12 Cathode foil 14 Adhesive tape 16 UV curable resin 18 Anode foil

───────────────────────────────────────────────────── フロントページの続き (56)参考文献 特開 平2−62028(JP,A) 特開 昭53−142652(JP,A) (58)調査した分野(Int.Cl.7,DB名) H01G 9/04 H01G 9/02 301 H01G 9/028 ────────────────────────────────────────────────── ─── Continuation of the front page (56) References JP-A-2-62028 (JP, A) JP-A-53-142652 (JP, A) (58) Fields investigated (Int. Cl. 7 , DB name) H01G 9/04 H01G 9/02 301 H01G 9/028

Claims (5)

(57)【特許請求の範囲】(57) [Claims] 【請求項1】 陰極箔と、陽極酸化により酸化皮膜を形
成した陽極箔とを巻回したコンデンサ素子に導電性高分
子よりなる固体電解質を形成した固体電解コンデンサに
おいて、前記陰極箔と陽極箔との幅方向中央部に、これら両箔よ
りも幅の狭い絶縁性支持部材が配設されることにより、
該絶縁性支持部材の両側に陰極箔と陽極箔とが10μm
以上の間隔をもって直接対向する空隙部が形成され、 この空隙部内に、前記導電性高分子からなる固体電解質
が充填されていることを特徴とする固体電解コンデン
サ。
1. A solid electrolytic capacitor in which a solid electrolyte made of a conductive polymer is formed on a capacitor element formed by winding a cathode foil and an anode foil having an oxide film formed by anodic oxidation, wherein the cathode foil and the anode foil are At the center in the width direction, these two foils
By providing an insulating support member with a narrow width,
Cathode foil and anode foil on both sides of the insulating support member are 10 μm
A void portion directly facing with the above-described interval is formed, and a solid electrolyte made of the conductive polymer is formed in the void portion.
Solid electrolytic condenser characterized by being filled with
Sa.
【請求項2】 陰極箔と、陽極酸化により酸化皮膜を形
成した陽極箔とを巻回したコンデンサ素子に導電性高分
子よりなる固体電解質を形成した固体電解コンデンサに
おいて、 前記陰極箔と陽極箔との間に、これら箔の長さ方向に所
定間隔をおいて多数の絶縁性支持部材が配設されること
により、これら絶縁性支持部材間に、前記陰極箔と陽極
箔とが10μm以上の間隔をもって直接対向する空隙部
が形成され、 この空隙部内に、前記導電性高分子からなる固体電解質
が充填されていることを特徴とする固体電解コンデン
サ。
2. A cathode foil and an oxide film formed by anodic oxidation.
The conductive element is applied to the capacitor element wound with the formed anode foil.
Solid electrolytic capacitor with solid electrolyte
Between the cathode foil and the anode foil in the longitudinal direction of these foils.
Numerous insulating support members are arranged at regular intervals
Thus, between these insulating support members, the cathode foil and the anode
A gap directly facing the foil with an interval of 10 μm or more
Is formed, and a solid electrolyte made of the conductive polymer is formed in the space.
Solid electrolytic condenser characterized by being filled with
Sa.
【請求項3】 陰極箔と、陽極酸化により酸化皮膜を形
成した陽極箔とをセパレータを介して巻回したコンデン
サ素子に導電性高分子よりなる固体電解質を形成した固
体電解コンデンサにおいて、前記陰極箔とセパレータとの間、および前記陽極箔とセ
パレータとの間に各々厚さが10μm以上の空隙部が形
成され、この空隙部内に前記導電性高分子よりなる固体
電解質が充填された ことを特徴とする固体電解コンデン
サ。
3. A cathode foil, in the solid electrolytic capacitor to form a solid electrolyte made of a conductive polymer in the capacitor element by winding via a separator and an anode foil to form an oxide film by anodic oxidation, said cathode foil Between the anode foil and the separator, and between the anode foil and the separator.
A gap with a thickness of 10 μm or more is formed between the
And a solid made of the conductive polymer in the space.
A solid electrolytic capacitor characterized by being filled with an electrolyte.
【請求項4】 前記セパレータがエンボス加工されるこ
とにより、前記陰極箔とセパレータとの間、および前記
陽極箔とセパレータとの間に各々厚さが10μm以上の
空隙部が形成され、この空隙部内に前記導電性高分子よ
りなる固体電解質が充填されたことを特徴とする請求項
3記載の固体電解コンデンサ。
4. The method according to claim 1, wherein the separator is embossed.
Between the cathode foil and the separator, and
A thickness of at least 10 μm between the anode foil and the separator
A void is formed, and the conductive polymer is formed in the void.
Wherein the solid electrolyte is filled with
3. The solid electrolytic capacitor according to 3.
【請求項5】 前記陰極箔および陽極箔がエンボス加工
されることにより、前記陰極箔とセパレータとの間、お
よび前記陽極箔とセパレータとの間に各々厚 さが10μ
m以上の空隙部が形成され、この空隙部内に前記導電性
高分子よりなる固体電解質が充填されたことを特徴とす
る請求項3記載の固体電解コンデンサ。
5. The method according to claim 1, wherein the cathode foil and the anode foil are embossed.
As a result, between the cathode foil and the separator,
And a thickness of 10 μm between the anode foil and the separator.
m is formed, and the conductive material is formed in the space.
Characterized by being filled with a polymer solid electrolyte
The solid electrolytic capacitor according to claim 3.
JP18922391A 1991-07-02 1991-07-02 Solid electrolytic capacitors Expired - Fee Related JP3202040B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP18922391A JP3202040B2 (en) 1991-07-02 1991-07-02 Solid electrolytic capacitors

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP18922391A JP3202040B2 (en) 1991-07-02 1991-07-02 Solid electrolytic capacitors

Publications (2)

Publication Number Publication Date
JPH0513286A JPH0513286A (en) 1993-01-22
JP3202040B2 true JP3202040B2 (en) 2001-08-27

Family

ID=16237638

Family Applications (1)

Application Number Title Priority Date Filing Date
JP18922391A Expired - Fee Related JP3202040B2 (en) 1991-07-02 1991-07-02 Solid electrolytic capacitors

Country Status (1)

Country Link
JP (1) JP3202040B2 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0886288B1 (en) 1997-06-20 2006-01-11 Matsushita Electric Industrial Co., Ltd. Electrolytic capacitor and method for manufacturing the same
JPH11283874A (en) 1998-01-28 1999-10-15 Matsushita Electric Ind Co Ltd Electrolytic capacitor
JP2003017369A (en) * 2001-06-29 2003-01-17 Nippon Chemicon Corp Method for manufacturing solid electrolytic capacitor
JP5688192B2 (en) * 2012-09-29 2015-03-25 ルビコン株式会社 Solid electrolytic capacitor and manufacturing method thereof

Also Published As

Publication number Publication date
JPH0513286A (en) 1993-01-22

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