JPH0442912A - Manufacture of solid electrolytic capacitor - Google Patents
Manufacture of solid electrolytic capacitorInfo
- Publication number
- JPH0442912A JPH0442912A JP14903090A JP14903090A JPH0442912A JP H0442912 A JPH0442912 A JP H0442912A JP 14903090 A JP14903090 A JP 14903090A JP 14903090 A JP14903090 A JP 14903090A JP H0442912 A JPH0442912 A JP H0442912A
- Authority
- JP
- Japan
- Prior art keywords
- electrolytic
- chemical
- oxide layer
- capacitor element
- film
- 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.)
- Pending
Links
- 239000003990 capacitor Substances 0.000 title claims abstract description 33
- 239000007787 solid Substances 0.000 title claims description 12
- 238000004519 manufacturing process Methods 0.000 title claims description 8
- 238000006116 polymerization reaction Methods 0.000 claims abstract description 33
- 239000000126 substance Substances 0.000 claims abstract description 17
- 238000000034 method Methods 0.000 claims abstract description 10
- 239000011888 foil Substances 0.000 claims abstract description 6
- 238000004804 winding Methods 0.000 claims abstract description 6
- 239000007788 liquid Substances 0.000 claims abstract description 4
- 230000001590 oxidative effect Effects 0.000 claims description 18
- 229920001940 conductive polymer Polymers 0.000 claims description 14
- 229910052751 metal Inorganic materials 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims description 3
- 150000001875 compounds Chemical class 0.000 claims 1
- 230000003647 oxidation Effects 0.000 abstract description 16
- 238000007254 oxidation reaction Methods 0.000 abstract description 16
- YTPLMLYBLZKORZ-UHFFFAOYSA-N Thiophene Chemical compound C=1C=CSC=1 YTPLMLYBLZKORZ-UHFFFAOYSA-N 0.000 abstract description 6
- ROOXNKNUYICQNP-UHFFFAOYSA-N ammonium persulfate Chemical compound [NH4+].[NH4+].[O-]S(=O)(=O)OOS([O-])(=O)=O ROOXNKNUYICQNP-UHFFFAOYSA-N 0.000 abstract description 6
- YLQBMQCUIZJEEH-UHFFFAOYSA-N Furan Chemical compound C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 abstract description 4
- KAESVJOAVNADME-UHFFFAOYSA-N Pyrrole Chemical compound C=1C=CNC=1 KAESVJOAVNADME-UHFFFAOYSA-N 0.000 abstract description 4
- 230000015572 biosynthetic process Effects 0.000 abstract description 4
- 239000000178 monomer Substances 0.000 abstract description 4
- 239000007784 solid electrolyte Substances 0.000 abstract description 4
- 229910001870 ammonium persulfate Inorganic materials 0.000 abstract description 3
- 239000003792 electrolyte Substances 0.000 abstract description 3
- 229930192474 thiophene Natural products 0.000 abstract description 3
- 238000005530 etching Methods 0.000 abstract description 2
- 229920002521 macromolecule Polymers 0.000 abstract 2
- WEVYAHXRMPXWCK-UHFFFAOYSA-N Acetonitrile Chemical compound CC#N WEVYAHXRMPXWCK-UHFFFAOYSA-N 0.000 description 6
- 239000000243 solution Substances 0.000 description 6
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 4
- 229920006254 polymer film Polymers 0.000 description 4
- 239000003115 supporting electrolyte Substances 0.000 description 4
- 229910052782 aluminium Inorganic materials 0.000 description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 3
- 230000007547 defect Effects 0.000 description 3
- 150000002391 heterocyclic compounds Chemical class 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 2
- 239000007864 aqueous solution Substances 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000008151 electrolyte solution Substances 0.000 description 2
- 230000000704 physical effect Effects 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 229920000128 polypyrrole Polymers 0.000 description 2
- 229920000123 polythiophene Polymers 0.000 description 2
- 229910052709 silver Inorganic materials 0.000 description 2
- 239000004332 silver Substances 0.000 description 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000855 fermentation Methods 0.000 description 1
- 230000004151 fermentation Effects 0.000 description 1
- 125000000623 heterocyclic group Chemical group 0.000 description 1
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 1
- 239000011244 liquid electrolyte Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229920000767 polyaniline Polymers 0.000 description 1
- 229920000414 polyfuran Polymers 0.000 description 1
- HNJBEVLQSNELDL-UHFFFAOYSA-N pyrrolidin-2-one Chemical compound O=C1CCCN1 HNJBEVLQSNELDL-UHFFFAOYSA-N 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 229910052715 tantalum Inorganic materials 0.000 description 1
- GUVRBAGPIYLISA-UHFFFAOYSA-N tantalum atom Chemical compound [Ta] GUVRBAGPIYLISA-UHFFFAOYSA-N 0.000 description 1
- CBXCPBUEXACCNR-UHFFFAOYSA-N tetraethylammonium Chemical compound CC[N+](CC)(CC)CC CBXCPBUEXACCNR-UHFFFAOYSA-N 0.000 description 1
- JOXIMZWYDAKGHI-UHFFFAOYSA-N toluene-4-sulfonic acid Chemical compound CC1=CC=C(S(O)(=O)=O)C=C1 JOXIMZWYDAKGHI-UHFFFAOYSA-N 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Landscapes
- Polyoxymethylene Polymers And Polymers With Carbon-To-Carbon Bonds (AREA)
Abstract
Description
【発明の詳細な説明】
し発明の目的］
（産業上の利用分野）
本発明は、ポリピロール。ポリチオフェンなどの導電性
高分子を固体電解質とする固体電解コンデンサの製造方
法に関するものである。[Detailed Description of the Invention] Object of the Invention] (Industrial Application Field) The present invention relates to polypyrrole. The present invention relates to a method for manufacturing a solid electrolytic capacitor using a conductive polymer such as polythiophene as a solid electrolyte.
（従来の技術）
表面に誘電体酸化皮膜を形成したアルミニウムやタンタ
ルなどの弁作用金属からなる陽極体に導電性６分子、例
えばポリピロール、ポリチオフェン、ポリアニリン、ポ
リフランなどを電解質とした固体電解：コンデンサが知
られている。(Prior technology) A solid electrolytic capacitor is made of a solid electrolytic capacitor with an anode body made of a valve metal such as aluminum or tantalum with a dielectric oxide film formed on the surface and an electrolyte of six conductive molecules, such as polypyrrole, polythiophene, polyaniline, polyfuran, etc. Are known.
これらのｓ定性高分子を使用した電解つンデンザは、従
来の液体電解質や有機半導体を使用した電解コンデンサ
に比べ、温度特性や周波数及び＾温負荷特性（寿命）な
どが優れており、そのため、これらの導電性高分子膜が
誘電体酸化皮膜上に、均一に必要な厚さだけ形成される
必要がある。Electrolytic capacitors using these qualitative polymers have superior temperature characteristics, frequency, and temperature load characteristics (life) compared to conventional electrolytic capacitors using liquid electrolytes or organic semiconductors. It is necessary to uniformly form a conductive polymer film of the required thickness on the dielectric oxide film.
誘電体酸化皮膜上に導電性高分子膜を形成する手段とし
ては、化学酸化重合によって誘電体酸化皮膜上に化学重
合膜からなる薄い導電性膜を形成し、この化学重合膜を
電極として電解酸化重合により厚いＩＪ電電膜膜形成す
る方法が知られている。As a means of forming a conductive polymer film on a dielectric oxide film, a thin conductive film made of a chemical polymer film is formed on the dielectric oxide film by chemical oxidation polymerization, and this chemical polymer film is used as an electrode for electrolytic oxidation. A method of forming a thick IJ electrical film by polymerization is known.
しかして、これら導電性高分子を使用した電解コンデン
サにおいて、体積効率をよくするために、箔状の陽極を
使用し、誘電体酸化皮膜を形成し、化学酸化重合を行っ
てスペーサ紙とともに巻回し、電解酸化重合を行う方法
が行われている。しかし、この電解酸化重合を巻回が行
われた後に行うと、コンデンサ素子内部と外部の電解液
の交換が少なくなり、内部の導電性高分子を形成するた
めの七ツマ−が不足し、均一で厚い導電性高分子膜の形
成ができない問題があった。In order to improve the volumetric efficiency of electrolytic capacitors using these conductive polymers, a foil-shaped anode is used, a dielectric oxide film is formed, chemical oxidation polymerization is performed, and the film is wound together with a spacer paper. , a method of electrolytic oxidative polymerization has been used. However, if this electrolytic oxidation polymerization is performed after winding, the exchange of the electrolyte between the inside and outside of the capacitor element will be reduced, resulting in a lack of seven polymers to form the internal conductive polymer, resulting in a uniform However, there was a problem in that it was not possible to form a thick conductive polymer film.
（発明が解決しようとする課題）
本発明は、以上のような従来技術の欠点を解消するため
に提案されたものであり、その目的は、誘電体酸化皮膜
を形成し化学酸化重合により導電性高分子膜を形成後、
巻回したコンデンサ素子の諺電体酸化皮膜上に均一・で
厚い導電性高分子膜を形成することによって、固体電解
質不足によって起こる静電容量減少、耐電圧低下。(Problems to be Solved by the Invention) The present invention has been proposed in order to eliminate the drawbacks of the prior art as described above, and its purpose is to form a dielectric oxide film and make it conductive by chemical oxidative polymerization. After forming the polymer film,
By forming a uniform and thick conductive polymer film on the electrical oxide film of the wound capacitor element, a decrease in capacitance and withstand voltage is caused by a lack of solid electrolyte.
ｔａｎδ増大などを改善することを目的とするものであ
る。The purpose is to improve tan δ increase and the like.
以上のように、従来−殻内に行われている導電性高分子
膜形成手段では、巻回素子に必要厚さの導電性高分子膜
を形成することは困難で、所望の特性を有する固体電解
コンデンサを得ることができなかった。As mentioned above, it is difficult to form a conductive polymer film of the necessary thickness on a wound element using the conventional method of forming a conductive polymer film inside a shell, and it is difficult to form a conductive polymer film with the required thickness on a wound element. I couldn't get an electrolytic capacitor.
本発明は、上記の点に鑑みてなされたもので、巻回素子
を構成する誘電体酸化皮膜上に均一に厚い導電性高分子
膜を形成することによって、諸特性改善に大きく寄与す
る固体電解コンデンサの製造方法を提供することを目的
とするものである。The present invention has been made in view of the above points, and by forming a uniformly thick conductive polymer film on the dielectric oxide film constituting the wound element, the present invention provides a solid electrolyte that greatly contributes to improving various characteristics. The object of the present invention is to provide a method for manufacturing a capacitor.
［発明の構成］
（課題を解決するための手段）
本発明による固体電解コンデンサの製造方法は、陽極酸
化皮膜上に化学酸化重合により導電性高分子からなる化
学重合膜を形成した弁作用金属箔とセパレータ紙とを重
ね合せ巻回しコンデンサ素子を形成し、このコンデンサ
素子を複素五員環化合物からなる電解酸化重合液中で電
解酸化重合を行う固体電解コンデンサの製造方法におい
て、前記電解酸化重合を少なくとも２回に分割して行う
ことを特徴とするものである。[Structure of the Invention] (Means for Solving the Problems) A method for manufacturing a solid electrolytic capacitor according to the present invention includes a valve metal foil in which a chemically polymerized film made of a conductive polymer is formed on an anodized film by chemical oxidative polymerization. and a separator paper to form a capacitor element, and this capacitor element is subjected to electrolytic oxidative polymerization in an electrolytic oxidative polymerization solution comprising a five-membered heterocyclic compound, wherein the electrolytic oxidative polymerization is carried out. It is characterized by being divided into at least two times.
（作用）
このように構成された固体電解コンデンサの製造方法に
よれば、巻回後コンデンサ素子中にある供給される電解
酸化重合液を拡散にたよるだけでなく、強制的に置換す
ることができ、化学重合股上に形成する電解重合膜を形
成するに十分な複素五員環化合物をコンデンサ素子内部
に供給することができるため、このことによって、電解
重合膜が均一に、また必要とする厚さまで成長させるこ
とができる。(Function) According to the method for manufacturing a solid electrolytic capacitor configured as described above, it is possible to not only rely on diffusion but also forcibly replace the supplied electrolytic oxidation polymerization liquid in the capacitor element after winding. This makes it possible to supply the five-membered heterocyclic compound to the inside of the capacitor element, which is sufficient to form the electropolymerized film formed on top of the chemical polymerization. It can be grown up to 100%.
（実施例） 以下、本発明の一実施例につき説明する。(Example) An embodiment of the present invention will be described below.
エツチングによって表面積を拡大し、化成工程を経て表
面に酸化皮膜を形成した、例えば高純度アルミニウムか
らなる陽極に陽極リード線を取着し、次に、この陽極箔
をビロール又はチオフェンあるいは７ラン／エタノール
水溶液に浸漬した優、更に過硫廐アンモニウム水溶液に
浸漬して化学酸化重合を施し、酸化皮膜上に導電性高分
子からなる化学重合膜を形成する。An anode lead wire is attached to an anode made of, for example, high-purity aluminum, whose surface area has been expanded by etching and an oxide film has been formed on the surface through a chemical conversion process, and then this anode foil is coated with virol, thiophene, or 7 run/ethanol. The material immersed in an aqueous solution is further immersed in an aqueous ammonium persulfate solution to undergo chemical oxidative polymerization to form a chemically polymerized film made of a conductive polymer on the oxide film.
しかして、この化学重合膜を形成した陽極箔とセパレー
タ紙と重ね合せ巻回し得たコンデンサ素子を再化成し、
酸化皮膜の修復を行う。しかるのち、前記コンデンサ素
子を支持電解質及びピＤ−ル、チオフェン、フランなど
の複素五員環モノマーを含む電解酸化重合液中に浸漬し
、１ｍＡ３０分電解酸化重合を行う。しかるのち、５０
℃３０分乾燥を行い、電解酸化重合液中に浸漬し、１７
７ＬＡ３０分電解酸化重合を行って、前記化学重合股上
にＪｌ電性＾分子からなる電解重合膜を生成する。The capacitor element was then re-formed by overlapping and winding the anode foil on which this chemically polymerized film was formed and the separator paper.
Repairs oxide film. Thereafter, the capacitor element is immersed in an electrolytic oxidative polymerization solution containing a supporting electrolyte and a five-membered heterocyclic monomer such as pyrrolidone, thiophene, and furan, and electrolytic oxidative polymerization is performed at 1 mA for 30 minutes. After that, 50
℃ 30 minutes, immersed in electrolytic oxidation polymerization solution,
Electrolytic oxidative polymerization is performed for 7LA 30 minutes to produce an electrolytically polymerized film consisting of Jl-electrified molecules on the chemically polymerized crotch.
次に、洗浄を行い乾燥後、コロイダルカーボンに浸漬−
銀ペースト塗布にて隙極層を設け、この＠極層に陰極リ
ードを取着し、最後に外装を施してなるものである。Next, after washing and drying, immerse in colloidal carbon.
A gap electrode layer is provided by applying silver paste, a cathode lead is attached to this @ electrode layer, and finally an exterior is applied.
以上の構成になる固体電解コンデンサの製造方法によれ
ば、電解酸化重合を分割することによってコンデンサ素
子内部に必要はの複素五員環化合物を供給することがで
き、均一で厚い電解重合膜を形成することができる。し
たがって、ｊａｎδ及び漏れ電流特性、並びにシ１−ト
不良の改善をはじめ、寄諸物竹向上に大ぎく寄与する。According to the manufacturing method of a solid electrolytic capacitor having the above structure, by dividing the electrolytic oxidative polymerization, it is possible to supply the necessary five-membered heterocyclic compound inside the capacitor element, and form a uniform and thick electrolytic polymer film. can do. Therefore, it greatly contributes to improvements in Jan δ, leakage current characteristics, and seat defects, as well as improvement in the number of defects.
次に、本発明によって得られた固体電解コンデンサと、
従来例によって得られた固体電解コンデンサの緒特性比
較について述べる。Next, a solid electrolytic capacitor obtained by the present invention,
A comparison of the characteristics of solid electrolytic capacitors obtained using conventional examples will be described.
表及び第１図〜第３図は、以下に記した実施例（Ａ）と
、従来例（Ｂ）による定格１０■３μＦの固体電解コン
デンサの特性比較を示１もので、第１図−第３図は１０
５℃下における時間に対する寿命特性を示すものである
。The table and Figures 1 to 3 show a comparison of the characteristics of solid electrolytic capacitors with a rating of 10 x 3 μF according to the example (A) and the conventional example (B) described below. Figure 3 is 10
This shows the life characteristics versus time at 5°C.
なお、表中の数値でショー１−不良を除いたものは試料
１００個の平均値である。Note that the values in the table excluding Show 1-defective are the average values of 100 samples.
実施例＜Ａ）
（１）化学酸化重合条件
ビロール／エタノール溶液に化成処理したアルミニウム
陽極箔を５分間浸漬後、支持電解質と」ノて１−ルエン
スルボン酸テトラエチルアン［ニウム ０．０５ｍｏ
Ｉ／１を含む０．１ｍｏｌ／Ｊ過硫酸アンモニウム水溶
液に５分間浸漬。Example <A) (1) Chemical oxidative polymerization conditions After immersing a chemically treated aluminum anode foil in a pyrrole/ethanol solution for 5 minutes, a supporting electrolyte and 0.05 mo of tetraethylaminium 1-ruenesulfonate were added.
Immersed in 0.1 mol/J ammonium persulfate aqueous solution containing I/1 for 5 minutes.
（２）コンデンサ素子構造
巻回形状
（３）電解酸化重合条件
ビロールモノマ−１ｒｎｏｌ／、１１及び支持電解質と
してパラトルエンスルホン酸テｌ−ラエチルアンモニウ
ム Ｉｍｏｌ／ｊｌを含むアセトニトリルからなる電解
液中に浸漬し、１ｍＡ３０分電解酸化重合を行う。(2) Capacitor element structure and winding shape (3) Electrolytic oxidation polymerization conditions The capacitor was immersed in an electrolytic solution consisting of acetonitrile containing virol monomer 1rnol/11 and para-toluenesulfonic acid tel-raethylammonium Imol/jl as a supporting electrolyte. , perform electrolytic oxidation polymerization at 1 mA for 30 minutes.
しかるのち、５０℃３０分乾燥を行い、電解酸化重合液
中に浸漬し、１ｍ、Ａ３０分電解酸化重合を行う。Thereafter, it is dried at 50° C. for 30 minutes, immersed in an electrolytic oxidative polymerization solution, and subjected to electrolytic oxidative polymerization for 1 m and A for 30 minutes.
（４）陰極形成
次に洗浄を行い、乾燥後］ロイダルカーボンに浸漬、銀
ペースト塗布にて陰極層を設け、この陰極層に陰極リー
ドを取着し、最後に外装を行う。(4) Formation of cathode: After cleaning and drying] A cathode layer is provided by dipping in rhoidal carbon and coating with silver paste, a cathode lead is attached to this cathode layer, and finally, an exterior is applied.
従来例（Ｂ）
（１）化学醇化重合条件
実施例＜Ａ）と同じ
（２）コンデンサ素′ｌｆ構造
実施例（Ａ）と同じ
（３）電解酸化Φ合条件
ビロールモノマー １ｍｏｌ／Ｊ）及び支持電解質とし
てバラミールエンスルホン酸デトノエチルアンモニウム
１ｍ０１／Ｊを含むアセトニトリルからなる電解液中
に浸潤し、１ｍＡ６０分電解酸化重合を行う。Conventional example (B) (1) Chemical fermentation polymerization conditions Example < Same as A) (2) Capacitor element 'lf structure Same as Example (A) (3) Electrolytic oxidation Φ conditions (Virrol monomer 1 mol/J) and It is immersed in an electrolytic solution consisting of acetonitrile containing 1 m01/J of detonoethyl ammonium varamylenesulfonate as a supporting electrolyte, and electrolytic oxidation polymerization is carried out at 1 mA for 60 minutes.
（４）陰極形成
実施例（Ａ）と同じ
表
上表から明らかなように、実施例（Ａ）は従来例＜８）
と比較して静電容５％、ｔａｎδ、ＩＩれ電流特性のい
ずれも著しく改善されるとともに、シ」−１−不良の大
幅な改善効果がみられる。(4) As is clear from the same table as cathode formation example (A), example (A) is conventional example <8)
Compared to the above, the capacitance of 5%, tan δ, and II leakage current characteristics are all significantly improved, and the effect of significantly improving the Si-1 defect is observed.
また、第１図〜第３図力目う明らかなように、容量変化
率及びｔａｎδの寿命特性の改善に貢献−４−ると同時
に、Ｒ諸物性におけるＩｎ電流の大幅な改善に貢献する
ことがわかる。In addition, as is clear from Figures 1 to 3, it contributes to improving the capacitance change rate and tan δ life characteristics, and at the same time contributes to a significant improvement in the In current in the R physical properties. I understand.
［発明の効果１
本発明によれば、ｉｔ’ｉｉ上に均一で、」−分な厚さ
の電解重合膜の形成が可能となり、初期の諸物性改善に
大きく貢献すると同時に、寿命特性の改善に貢献できる
固体電解コンデンサの製造方法を得ることができる。[Effect of the invention 1] According to the present invention, it is possible to form an electropolymerized film that is uniform and has a thickness of 1000 yen on it'ii, which greatly contributes to the improvement of various initial physical properties and at the same time improves the life characteristics. It is possible to obtain a method for manufacturing a solid electrolytic capacitor that can contribute to
第１図は時間−容量変化率特性曲線図、第２図は時間−
ｔａｎδ特性曲縮図、第３図は時間−漏れ電流特性曲線
図である。
特 許 出 願 人
マルコン電子株式会社
時
間
（ｈ）
第
図
時
間
（ｈ）
時
間
（ｈ）
第
図Figure 1 is a time-capacity change rate characteristic curve, and Figure 2 is a time-capacity change rate characteristic curve.
FIG. 3 is a time-leakage current characteristic curve diagram. Patent application Marcon Electronics Co., Ltd. Time (h) Figure Time (h) Time (h) Figure
Claims (1)
子からなる化学重合膜を形成した弁作用金属箔とセパレ
ータ紙とを重ね合せ巻回しコンデンサ素子を形成し、し
かるのち、この素子を複素五員環化合物からなる電解酸
化重合液で電解酸化重合を行う固体電解コンデンサの製
造方法において、前記電解酸化重合を少なくとも２回に
分割して行うことを特徴とする固体電解コンデンサの製
造方法。(1) A capacitor element is formed by overlapping and winding a separator paper with a valve metal foil on which a chemically polymerized film made of conductive polymer is formed by chemical oxidative polymerization on an anodized film, and then this element is assembled into a complex A method for manufacturing a solid electrolytic capacitor in which electrolytic oxidative polymerization is carried out using an electrolytic oxidative polymerization liquid comprising a five-membered ring compound, wherein the electrolytic oxidative polymerization is carried out in at least two divided steps.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14903090A JPH0442912A (en) | 1990-06-06 | 1990-06-06 | Manufacture of solid electrolytic capacitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14903090A JPH0442912A (en) | 1990-06-06 | 1990-06-06 | Manufacture of solid electrolytic capacitor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0442912A true JPH0442912A (en) | 1992-02-13 |
Family
ID=15466136
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14903090A Pending JPH0442912A (en) | 1990-06-06 | 1990-06-06 | Manufacture of solid electrolytic capacitor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0442912A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10321471A (en) * | 1997-05-22 | 1998-12-04 | Nichicon Corp | Solid electrolytic capacitor and its manufacture |
| JPH10321472A (en) * | 1997-05-22 | 1998-12-04 | Nichicon Corp | Solid electrolytic capacitor and its manufacture |
| JP2000269070A (en) * | 1999-03-19 | 2000-09-29 | Matsushita Electric Ind Co Ltd | Manufacturing method of capacitor |
| JP2008235645A (en) * | 2007-03-22 | 2008-10-02 | Sanyo Electric Co Ltd | Solid-state electrolytic capacitor and manufacturing method therefor |
| US11270847B1 (en) | 2019-05-17 | 2022-03-08 | KYOCERA AVX Components Corporation | Solid electrolytic capacitor with improved leakage current |
-
1990
- 1990-06-06 JP JP14903090A patent/JPH0442912A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10321471A (en) * | 1997-05-22 | 1998-12-04 | Nichicon Corp | Solid electrolytic capacitor and its manufacture |
| JPH10321472A (en) * | 1997-05-22 | 1998-12-04 | Nichicon Corp | Solid electrolytic capacitor and its manufacture |
| JP2000269070A (en) * | 1999-03-19 | 2000-09-29 | Matsushita Electric Ind Co Ltd | Manufacturing method of capacitor |
| JP2008235645A (en) * | 2007-03-22 | 2008-10-02 | Sanyo Electric Co Ltd | Solid-state electrolytic capacitor and manufacturing method therefor |
| US11270847B1 (en) | 2019-05-17 | 2022-03-08 | KYOCERA AVX Components Corporation | Solid electrolytic capacitor with improved leakage current |
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