【発明の詳細な説明】〔産業上の利用分野〕本発明は固体電解コンデンサ素子の製造方法に関し、さ
らに詳しく言えば、導電性高分子からなる固体電解質を
有する固体電解コンデンサ素子の製造方法およびそれに
用いられる治具に関するものである。[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a method for manufacturing a solid electrolytic capacitor element, and more specifically, a method for manufacturing a solid electrolytic capacitor element having a solid electrolyte made of a conductive polymer, and a method for manufacturing the solid electrolytic capacitor element. This relates to the jig used.
アルミニウムなどの弁作用金属箔に導電性高分子、例え
ばポリピロールからなる固体電解質を形成する場合、ま
ず化学重合によりプレコート層を形成し、その上に電解
重合にて電解重合膜を積層するようにしている。第３図
および第４図を参照してその製造過程を説明すると、ま
ずエツチング処理および化成処理済みのアルミニウムか
らなる電極箔１に陽極端子２を取付ける。この場合、陽
極端子２はアルミニウムからなる丸棒の一部分をプレス
などにて偏平に押し潰した平板部２ａと、残された丸棒
の端部に取付けられたリード線部２ｂとを有し、平板部
２ａがかしめなどにて電極箔１に取付けられる。この端
子取付は後、好ましくは電極箔ｌは再化成処理される。When forming a solid electrolyte made of a conductive polymer such as polypyrrole on a valve metal foil such as aluminum, first a precoat layer is formed by chemical polymerization, and then an electrolytic polymer film is laminated on top of it by electrolytic polymerization. There is. The manufacturing process will be explained with reference to FIGS. 3 and 4. First, an anode terminal 2 is attached to an electrode foil 1 made of etched and chemically treated aluminum. In this case, the anode terminal 2 has a flat plate part 2a made by flattening a part of a round bar made of aluminum using a press or the like, and a lead wire part 2b attached to the end of the remaining round bar. The flat plate portion 2a is attached to the electrode foil 1 by caulking or the like. After this terminal attachment, the electrode foil 1 is preferably subjected to a reconversion treatment.
次に、コンデンサ素子Ｃとなるこの電極箔１をその陽極
端子２を介して適当なフープ材３に所定の間隔をもって
複数個担持させ、ビロールモノマー溶液中に浸漬し、化
学重合にて各電極箔１の周りにプレコート層４を形成す
る。このとき、プレコート層４は電極箔１から引出され
た端子の丸棒部分の周りにも這い上がるようにして形成
される。Next, a plurality of electrode foils 1, which will become capacitor elements C, are supported on a suitable hoop material 3 at predetermined intervals via their anode terminals 2, and immersed in a virol monomer solution, each electrode is chemically polymerized. A precoat layer 4 is formed around the foil 1. At this time, the precoat layer 4 is formed so as to creep up around the round bar portion of the terminal drawn out from the electrode foil 1.
説明の都合上、同丸棒部分の周りに形成されたプレコー
ト層４の部位を首部４ａとする。For convenience of explanation, the portion of the precoat layer 4 formed around the round bar portion will be referred to as the neck portion 4a.
しかる後、電解重合によりプレコート層４上に電解重合
膜を形成する。この電解重合に際しては、重合用外部端
子５が用いられる。この重合用外部端子５は、各コンデ
ンサ素子Ｃの首部４ａに接触するように延ばされ、その
両端がＬ字状に折り曲げてフープ材６に取付けられた例
えばステンレスワイヤーからなる端子本体５ａと、同端
子本体５ａを機械的に補強する梁部材５ｂとからなる。Thereafter, an electrolytic polymer film is formed on the precoat layer 4 by electrolytic polymerization. During this electrolytic polymerization, an external polymerization terminal 5 is used. This external terminal for superposition 5 has a terminal main body 5a made of, for example, stainless steel wire, which is extended so as to come into contact with the neck portion 4a of each capacitor element C, and whose both ends are bent into an L shape and attached to the hoop material 6. It consists of a beam member 5b that mechanically reinforces the terminal body 5a.
第４図に示されているように、端子本体５ａを各プレコ
ート層４の首部４ａに接触させた状態で、ビロールモノ
マーを含む電解液中に浸漬し、プレコート層４側を陽極
、同電解液のステンレス製容器側を陰極として電解重合
を行なうことによって、プレコート層４に電解重合膜を
形成する。As shown in FIG. 4, the terminal body 5a is immersed in an electrolytic solution containing virol monomer with the terminal body 5a in contact with the neck 4a of each precoat layer 4, and the precoat layer 4 side is used as an anode and the same electrolyte solution is used. By performing electrolytic polymerization using the stainless steel container side of the liquid as a cathode, an electrolytically polymerized film is formed on the precoat layer 4.
しかしながら、上記従来例によると電解重合の際、その
コンデンサ素子Ｃ全部のプレコート層４に対して重合用
外部端子５が接触せず、その結果電解重合膜が未形成の
不良品が発生するという欠点があった。すなわち、複数
のコンデンサ素子Ｃがその陽極端子２を介してフープ材
３に取付けられるのであるが、その際その全部が均一に
取付けられるとは限らない、ある程度のバラツキは仕方
ないにしても、特に第４図において、左右方向の傾きの
バラツキが大きくなると、端子本体５ａをそれらの首部
４ａに押し当てる際、同図左側に傾いているものについ
ては、接触し得ないことになる。However, according to the above-mentioned conventional example, during electrolytic polymerization, the polymerization external terminal 5 does not come into contact with the precoat layer 4 of the entire capacitor element C, resulting in defective products in which the electrolytic polymer film is not formed. was there. That is, a plurality of capacitor elements C are attached to the hoop material 3 via their anode terminals 2, but at that time, not all of them are attached uniformly, and although some variation is unavoidable, In FIG. 4, if the variation in the inclination in the left-right direction increases, when pressing the terminal body 5a against the neck portions 4a, it will not be possible to make contact with those that are inclined to the left in the figure.
本発明は、上記従来の欠点を解決するためになされたも
ので、その構成上の特徴は、陽極端子を有する複数の弁
作用金属箔をその陽極端子を介してフープ材に所定の間
隔をもって担持させ、同各弁作用金属箔に化学重合によ
り導電性高分子のプレコート層を形成したのち、同プレ
コート層に重合用外部端子を接触させて電解重合により
上記プレコート層上に導電性高分子からなる電解重合膜
を形成する固体電解コンデンサ素子の製造方法において
、上記電解重合に際し、バネ弾性を有する押圧部材にて
上記重合用外部端子を上記プレコート層に接触させるこ
とにある。The present invention has been made to solve the above-mentioned conventional drawbacks, and its structural feature is that a plurality of valve metal foils each having an anode terminal are carried on a hoop material at a predetermined interval via the anode terminal. After forming a precoat layer of a conductive polymer on each valve metal foil by chemical polymerization, an external terminal for polymerization is brought into contact with the precoat layer, and a conductive polymer is formed on the precoat layer by electrolytic polymerization. In the method for manufacturing a solid electrolytic capacitor element in which an electrolytically polymerized film is formed, the external terminal for polymerization is brought into contact with the precoat layer using a pressing member having spring elasticity during the electrolytically polymerized film.
この場合、押圧部材は陽極端子と重合用外部端子を挟む
少なくとも一対の挟持片を有するクリップ状に形成され
たものであることが好ましい。In this case, the pressing member is preferably formed in the shape of a clip having at least a pair of clamping pieces that sandwich the anode terminal and the external terminal for polymerization.
上記構成によれば、重合用外部端子は抑圧部材にてプレ
コート層に対して押し付けられるように接触するため、
はぼ全部のコンデンサ素子のプレコート層上に電解重合
膜が形成される。According to the above configuration, since the external terminal for polymerization comes into contact with the precoat layer so as to be pressed by the suppressing member,
An electrolytic polymer film is formed on almost all the precoat layers of the capacitor element.
以下、本発明の実施例を第１図および第２図を参照しな
がら詳細に説明する。なお、コンデンサ素子Ｃ自体の構
成については先に説明の従来例と同じであると理解され
たい。Hereinafter, embodiments of the present invention will be described in detail with reference to FIGS. 1 and 2. Note that it should be understood that the configuration of the capacitor element C itself is the same as the conventional example described above.
この製造方法においては、電解重合するにあたって、重
合用外部端子５を所定のバネ弾性をもってプレコート層
４の例えば首部４ａに押圧する押圧部材１０を備えてい
る。この実施例によると、押圧部材１０は陽極端子２と
、重合用外部端子５とをその両側から挟む一対の挟持片
１１．１２を含むクリップ状に形成されている。すなわ
ち、この押圧部材１０によると、一対の挟持片１１．１
２はフープ材３゜６と同方向に延びるバネ弾性を有する
帯板状の基板１３の両側縁に連設され、かつ互いに接近
するように角度付けされている。なお、第２図に例示さ
れているように、一方の挟持片】１はフープ材３に取付
けられた陽極端子２と同じ間隔をもって設けられ、また
、他方の挟持片１２は端子本体５ａを補強する梁部材５
ｂに対応するように形成されている。This manufacturing method includes a pressing member 10 that presses the polymerization external terminal 5 against, for example, the neck portion 4a of the precoat layer 4 with a predetermined spring elasticity during electrolytic polymerization. According to this embodiment, the pressing member 10 is formed into a clip shape including a pair of clamping pieces 11 and 12 that clamp the anode terminal 2 and the external terminal for superposition 5 from both sides thereof. That is, according to this pressing member 10, the pair of clamping pieces 11.1
2 are connected to both side edges of a band-like substrate 13 having spring elasticity extending in the same direction as the hoop material 3.degree. 6, and are angled so as to approach each other. As illustrated in FIG. 2, one clamping piece 1 is provided with the same spacing as the anode terminal 2 attached to the hoop material 3, and the other clamping piece 12 is provided to reinforce the terminal body 5a. Beam member 5
It is formed to correspond to b.
このクリップ状の押圧部材１０を第１図に示されている
ように被せることにより、一方の挟持片１１にて陽極端
子２側の逃げが防止されるとともに、他方の挟持片１２
により重合用外部端子５の端子本体５ａが各プレコート
層４の首部４ａに確実に接触することになる。By covering this clip-shaped pressing member 10 as shown in FIG. 1, one clamping piece 11 prevents the anode terminal 2 side from escaping, and the other clamping piece
This ensures that the terminal main body 5a of the external terminal for polymerization 5 comes into contact with the neck portion 4a of each precoat layer 4.
したがって、この重合用外部端子５を介してプレコート
層４を陽極とし、ビロールモノマーを含む電解液の容器
側を陰極として電解重合を行なうことにより、同プレコ
ート層４上に電解重合膜が形成される。Therefore, an electrolytic polymerization film is formed on the precoat layer 4 by performing electrolytic polymerization using the precoat layer 4 as an anode and the container side of the electrolytic solution containing virol monomer as a cathode via this external terminal 5 for polymerization. Ru.
なお上記実施例とは異なり、場合によっては陽極端子２
側の挟持片１１を省略してもよい、もっとも、その場合
には他方の挟持片１２のみとなるため、同挟持片１２は
押圧片と呼ばれることになる。Note that, unlike the above embodiment, in some cases, the anode terminal 2
The side clamping piece 11 may be omitted; however, in that case, only the other clamping piece 12 is left, so the clamping piece 12 will be called a pressing piece.
以上説明したように、本発明によれば、電解重合に際し
、バネ弾性を有する押圧部材にて重合用外部端子をプレ
コート層に接触させるようにしたことにより、はぼ全部
のコンデンサ素子のプレコート層上に電解重合膜を形成
することができ、不良率を大幅に低減することができる
。As explained above, according to the present invention, the external terminal for polymerization is brought into contact with the precoat layer using a pressing member having spring elasticity during electrolytic polymerization, so that almost all of the precoat layer of the capacitor element is It is possible to form an electrolytically polymerized film, and the defective rate can be significantly reduced.
第１図は本発明の一実施例を示した正面図、第２図は第
１図中に示されている押圧部材の斜視図、第３図は従来
例を説明するための斜視図、第４図は同従来例の電解重
合時の組み合わせ状態を示した正面図である。図中、１は電極箔、２は陽極端子、３，６はフープ材、
４はプレコート層、５は重合用外部端子、１Ｇは押圧部
材、１１．１２は挟持片、１３は基板、Ｃはコンデンサ
素子である。FIG. 1 is a front view showing an embodiment of the present invention, FIG. 2 is a perspective view of the pressing member shown in FIG. 1, FIG. 3 is a perspective view for explaining a conventional example, and FIG. FIG. 4 is a front view showing the combination state during electrolytic polymerization of the conventional example. In the figure, 1 is an electrode foil, 2 is an anode terminal, 3 and 6 are hoop materials,
4 is a precoat layer, 5 is an external terminal for polymerization, 1G is a pressing member, 11.12 is a holding piece, 13 is a substrate, and C is a capacitor element.
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2153420AJPH0444305A (en) | 1990-06-12 | 1990-06-12 | Method and tool for manufacturing solid electrolytic capacitor element |
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2153420AJPH0444305A (en) | 1990-06-12 | 1990-06-12 | Method and tool for manufacturing solid electrolytic capacitor element |
| Publication Number | Publication Date |
|---|---|
| JPH0444305Atrue JPH0444305A (en) | 1992-02-14 |
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2153420APendingJPH0444305A (en) | 1990-06-12 | 1990-06-12 | Method and tool for manufacturing solid electrolytic capacitor element |
| Country | Link |
|---|---|
| JP (1) | JPH0444305A (en) |
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5584890A (en)* | 1995-01-24 | 1996-12-17 | Macfarlane; Douglas R. | Methods of making multiple anode capacitors |
| US8347418B2 (en) | 2007-11-28 | 2013-01-08 | Ohki Murata | Shorts |
| USD848111S1 (en) | 2018-03-30 | 2019-05-14 | Covr Medical, Llc | Reversible half-short medical garment |
| US11270847B1 (en) | 2019-05-17 | 2022-03-08 | KYOCERA AVX Components Corporation | Solid electrolytic capacitor with improved leakage current |
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5584890A (en)* | 1995-01-24 | 1996-12-17 | Macfarlane; Douglas R. | Methods of making multiple anode capacitors |
| US8347418B2 (en) | 2007-11-28 | 2013-01-08 | Ohki Murata | Shorts |
| USD848111S1 (en) | 2018-03-30 | 2019-05-14 | Covr Medical, Llc | Reversible half-short medical garment |
| US11270847B1 (en) | 2019-05-17 | 2022-03-08 | KYOCERA AVX Components Corporation | Solid electrolytic capacitor with improved leakage current |
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