JPH0464213A - Electrolytic capacitor - Google Patents
Electrolytic capacitorInfo
- Publication number
- JPH0464213A JPH0464213A JP2175257A JP17525790A JPH0464213A JP H0464213 A JPH0464213 A JP H0464213A JP 2175257 A JP2175257 A JP 2175257A JP 17525790 A JP17525790 A JP 17525790A JP H0464213 A JPH0464213 A JP H0464213A
- Authority
- JP
- Japan
- Prior art keywords
- fibers
- heat
- separator
- electrolytic capacitor
- polymer fibers
- 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.)
- Granted
Links
- 239000003990 capacitor Substances 0.000 title claims abstract description 32
- 239000000835 fiber Substances 0.000 claims abstract description 31
- 229920005594 polymer fiber Polymers 0.000 claims abstract description 13
- 229920001169 thermoplastic Polymers 0.000 claims abstract description 12
- 238000002844 melting Methods 0.000 claims abstract description 9
- 230000008018 melting Effects 0.000 claims abstract description 9
- 239000004745 nonwoven fabric Substances 0.000 claims abstract description 7
- 239000004760 aramid Substances 0.000 claims description 8
- 229920003235 aromatic polyamide Polymers 0.000 claims description 8
- -1 polytetrafluoroethylene Polymers 0.000 claims description 8
- 239000004697 Polyetherimide Substances 0.000 claims description 4
- 239000004642 Polyimide Substances 0.000 claims description 4
- 229920001601 polyetherimide Polymers 0.000 claims description 4
- 229920001721 polyimide Polymers 0.000 claims description 4
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 4
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 4
- XQUPVDVFXZDTLT-UHFFFAOYSA-N 1-[4-[[4-(2,5-dioxopyrrol-1-yl)phenyl]methyl]phenyl]pyrrole-2,5-dione Chemical compound O=C1C=CC(=O)N1C(C=C1)=CC=C1CC1=CC=C(N2C(C=CC2=O)=O)C=C1 XQUPVDVFXZDTLT-UHFFFAOYSA-N 0.000 claims description 3
- 229920000840 ethylene tetrafluoroethylene copolymer Polymers 0.000 claims description 3
- 229920003192 poly(bis maleimide) Polymers 0.000 claims description 3
- 239000004677 Nylon Substances 0.000 claims description 2
- 239000002033 PVDF binder Substances 0.000 claims description 2
- 239000004962 Polyamide-imide Substances 0.000 claims description 2
- 229920000297 Rayon Polymers 0.000 claims description 2
- 229920001778 nylon Polymers 0.000 claims description 2
- 229920002312 polyamide-imide Polymers 0.000 claims description 2
- 239000002964 rayon Substances 0.000 claims description 2
- ODPYDILFQYARBK-UHFFFAOYSA-N 7-thiabicyclo[4.1.0]hepta-1,3,5-triene Chemical group C1=CC=C2SC2=C1 ODPYDILFQYARBK-UHFFFAOYSA-N 0.000 claims 1
- 229920002981 polyvinylidene fluoride Polymers 0.000 claims 1
- 239000004416 thermosoftening plastic Substances 0.000 abstract 1
- 239000000123 paper Substances 0.000 description 9
- 239000011888 foil Substances 0.000 description 6
- 239000000463 material Substances 0.000 description 6
- 239000004743 Polypropylene Substances 0.000 description 5
- 239000004734 Polyphenylene sulfide Substances 0.000 description 4
- 229920000069 polyphenylene sulfide Polymers 0.000 description 4
- 239000003792 electrolyte Substances 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 229920005992 thermoplastic resin Polymers 0.000 description 3
- 229920003043 Cellulose fiber Polymers 0.000 description 2
- 229920006015 heat resistant resin Polymers 0.000 description 2
- 239000012210 heat-resistant fiber Substances 0.000 description 2
- 239000002655 kraft paper Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 229920000139 polyethylene terephthalate Polymers 0.000 description 2
- 239000005020 polyethylene terephthalate Substances 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000008151 electrolyte solution Substances 0.000 description 1
- 238000009499 grossing Methods 0.000 description 1
- 239000003779 heat-resistant material Substances 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
Landscapes
- Nonwoven Fabrics (AREA)
Abstract
Description
【発明の詳細な説明】
［産業上の利用分野］
本発明は、独特の構成のセパレータを用いた電解コンデ
ンサに関し、更に詳しくは、異なる性質を有する２種類
の繊維を混抄した素材を電解コンデンサ用セパレータと
して使用することにより、セパレータの強度向上を実現
し得る電解コンデンサに関する。[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to an electrolytic capacitor using a separator with a unique structure, and more specifically, a material made of a mixture of two types of fibers having different properties is used for electrolytic capacitors. The present invention relates to an electrolytic capacitor that can be used as a separator to improve the strength of the separator.
［従来の技術］
電解コンデンサは、小形、大容量、安価で整流出力の平
滑化等に優れた特性を示し、各種電気・電子機器の重要
な構成要素の１つである。[Prior Art] Electrolytic capacitors are small, large in capacity, inexpensive, and exhibit excellent characteristics such as smoothing of rectified output, and are one of the important components of various electrical and electronic devices.
一般に電解液式のアルミニウム電解コンデンサにおいて
は、電解酸化による表面酸化皮膜を有する陽極箔を用い
、この酸化皮膜を誘電体とし、集電陰極箔との間に所定
の電解液を介在させて電解コンデンサが製造される。In general, electrolytic solution-type aluminum electrolytic capacitors use an anode foil with a surface oxide film formed by electrolytic oxidation, this oxide film is used as a dielectric, and a predetermined electrolyte is interposed between the current collector cathode foil and the electrolytic capacitor. is manufactured.
この際、陽極箔と集電陰極箔との間に例えは多孔質のセ
パレータを挾持させることにより、電解液の担持を確実
にし、製品における陽極箔と陰極箔との隔離を確実にす
る手段かしばしば用いられる。At this time, for example, by sandwiching a porous separator between the anode foil and the current collector cathode foil, it is possible to ensure that the electrolyte is supported and to ensure that the anode foil and cathode foil are separated in the product. Often used.
一般に電解コンデンサの製品特性は、電解液式の電解コ
ンデンサの場合、主として陽極と陰極との間に介在させ
る電解液の性質によって規定される。セパレータは、陽
極、陰極、誘電体酸化皮膜、電解液等と異なり、電解コ
ンデンサの基本的な構成要素ではないが、製品の安定性
の向上やライフ特性の向上を図るためにセパレータを使
用すると、結果的に使用したセパレータの性質によって
コンデンサの総合的な性能が影響を受けることとなる。In general, the product characteristics of electrolytic capacitors are mainly determined by the properties of the electrolytic solution interposed between the anode and the cathode in the case of electrolytic capacitors. Unlike the anode, cathode, dielectric oxide film, electrolyte, etc., the separator is not a basic component of an electrolytic capacitor, but if it is used to improve product stability and life characteristics, As a result, the overall performance of the capacitor is affected by the properties of the separator used.
例えば、セパレータの機械的強度は、製品電解コンデン
サの寿命特性等に確実に影響を与え得ると考えられる。For example, it is thought that the mechanical strength of the separator can definitely affect the life characteristics of a product electrolytic capacitor.
電解コンデンサ用セパレータとしては、通常はマニラ紙
、クラフト紙等のセルロース系繊維からなる紙が広く使
用されている。また、耐熱性を高めるなめに、アラミド
等の耐熱性の繊維も用いられる。しかしながら、これら
の素材は機械的強度が弱いため、製品電解コンデンサの
総合的な性能向上の阻害要因となり、また、機械加工を
行う製造工程上の観点からも、強度の高い素材からなる
セパレータが望まれていた。As separators for electrolytic capacitors, papers made of cellulose fibers such as manila paper and kraft paper are commonly used. Furthermore, heat-resistant fibers such as aramid are also used to increase heat resistance. However, these materials have low mechanical strength, which hinders the overall performance improvement of product electrolytic capacitors.Also, from the viewpoint of the manufacturing process, which involves machining, it is desirable to use separators made of materials with high strength. It was rare.
［発明が解決しようとする課題］
本発明は、独特の構成のセパレータを用いた電解コンデ
ンサであって、異なる性質を有する２種類の繊維を混抄
した素材を電解コンデンサ用セパレータとして使用する
ことにより、セパレータの強度向上を実現し得る電解コ
ンデンサを提供することを目的とする。[Problems to be Solved by the Invention] The present invention is an electrolytic capacitor using a separator with a unique configuration, and by using a material made of a mixture of two types of fibers having different properties as the separator for the electrolytic capacitor, An object of the present invention is to provide an electrolytic capacitor that can improve the strength of a separator.
［課題を解決するための手段］
本発明によれば、電解コンデンサ用セパレータとして、
３５０°Ｃ以上の融点を有するかまたは融点を有さない
耐熱高分子繊維と３５０℃未満の融点を有する熱可塑性
高分子繊維とを混抄し、繊維同志を熱融着した紙または
不織布を使用することを特徴とする電解コンデンサが提
供される。[Means for Solving the Problem] According to the present invention, as a separator for an electrolytic capacitor,
Use paper or nonwoven fabric made by mixing heat-resistant polymer fibers with a melting point of 350°C or higher or without a melting point and thermoplastic polymer fibers with a melting point of lower than 350°C, and heat-sealing the fibers together. An electrolytic capacitor characterized by the following is provided.
耐熱高分子繊維が、アラミド、ポリイミド、ポリエーテ
ルイミド、ポリアミドイミド、ＰＴＦＥ （ポリ４フッ
化エチレン）、並びにポリアミノビスマレイミドよりな
る群から選択され、熱可塑性高分子繊維が、ＰＰ（ポリ
プロピレン）、ＰＥＴ（ポリエチレンテレフタレートｌ
ＰＰＳ （ポリフェニレンサルファイド）、ナイロン
、レーヨン、ＥＴＦＥ（エチレン−４フッ化エチレン）
、並びにＰＶＤＦ （ポリフッ化ビニリデン）よりなる
群から選択されれば好適である。The heat-resistant polymer fiber is selected from the group consisting of aramid, polyimide, polyetherimide, polyamideimide, PTFE (polytetrafluoroethylene), and polyamino bismaleimide, and the thermoplastic polymer fiber is PP (polypropylene), PET. (Polyethylene terephthalate l
PPS (polyphenylene sulfide), nylon, rayon, ETFE (ethylene-tetrafluoroethylene)
, and PVDF (polyvinylidene fluoride).
本発明の耐熱高分子繊維と熱可塑性高分子繊維とを混抄
して繊維同志を熱融着した紙まなは不織布は、好ましく
は厚さ２０〜１００μｍ、密度０，２〜１．０ｇ／Ｃ１
１３とし、これを電解コンデンサ用セパレータとして使
用する。The paper core or nonwoven fabric made by mixing heat-resistant polymer fibers and thermoplastic polymer fibers and heat-sealing the fibers of the present invention preferably has a thickness of 20 to 100 μm and a density of 0.2 to 1.0 g/C1.
13, and this is used as a separator for electrolytic capacitors.
本発明の耐熱高分子繊維と熱可塑性高分子繊維とを混抄
して繊維同志を熱融着した紙または不織布は、繊維間の
交錯部において融着しているため、繊維の引張強度が向
上し、低密度化しても所定の強度を維持することができ
る。The paper or nonwoven fabric of the present invention in which heat-resistant polymer fibers and thermoplastic polymer fibers are mixed and the fibers are thermally fused together has improved tensile strength because the fibers are fused at the intersections. , it is possible to maintain a predetermined strength even when the density is reduced.
［作用］
前記したように、電解コンデンサ用セパレータとしては
、通常はマニラ紙、クラフト紙等のセルロース系繊維か
らなる紙が広く使用され、また、耐熱性を高めるために
、アラミド等の耐熱性の繊維も用いられていたが、これ
らの素材は機械的強度が弱いため、製品電解コンデンサ
の総合的な性能向上の阻害要因となっていた。[Function] As mentioned above, as a separator for electrolytic capacitors, papers made of cellulose fibers such as manila paper and kraft paper are usually widely used, and in order to increase heat resistance, heat-resistant materials such as aramid are used. Fibers were also used, but these materials had low mechanical strength, which hindered the overall performance improvement of product electrolytic capacitors.
本発明は、異なる性質を有する２種類の繊維として熱可
塑性樹脂の繊維と耐熱性の高い繊維とをを混抄し、熱融
着させることにより機械的強度を増加させ、これを電解
コンデンサ用セパレータとして使用することにより、セ
パレータの強度向上を実現し得る電解コンデンサを提供
することを意図するものである６本発明によれば、熱可
塑性樹脂として例えばＰＰ、ＰＰＳ等を用い、耐熱性樹
脂として例えばアラミド、ポリイミド、ポリエーテルイ
ミド等を用いることにより、セパ−レータの強度を向上
させることかできる。The present invention involves mixing two types of fibers with different properties, thermoplastic resin fibers and highly heat-resistant fibers, and heat-sealing them to increase mechanical strength, and use this as a separator for electrolytic capacitors. According to the present invention, for example, PP, PPS, etc. are used as the thermoplastic resin, and for example, aramid is used as the heat-resistant resin. By using , polyimide, polyetherimide, etc., the strength of the separator can be improved.
本発明が開示したように、繊維間の交錯部において融着
した繊維をセパレータとして使用すると、繊維の引張強
度が向上し、低密度化しても強度を維持し得るという効
果が得られる。As disclosed in the present invention, when the fibers fused at the intersections between the fibers are used as a separator, the tensile strength of the fibers is improved and the strength can be maintained even when the density is reduced.
［発明の効果コ
本発明によれば、独特の構成のセパレータを用いた電解
コンデンサであって、異なる性質を有する２種類の繊維
として、耐熱高分子繊維と熱可塑性高分子繊維とを混抄
し熱融着した素材を電解コンデンサ用セパレータとして
使用することにより、セパレータの強度向上を実現し得
る電解コンデンサを提供することができる。[Effects of the Invention] According to the present invention, there is provided an electrolytic capacitor using a separator with a unique structure, in which two types of fibers having different properties, a heat-resistant polymer fiber and a thermoplastic polymer fiber, are mixed and heated. By using the fused material as a separator for an electrolytic capacitor, it is possible to provide an electrolytic capacitor that can improve the strength of the separator.
「実施例コ
以下に実施例により本発明を更に詳細に説明するが、本
発明は以下の実施例にのみ限定されるものではない。EXAMPLES The present invention will be explained in more detail with reference to Examples below, but the present invention is not limited to the following Examples.
耐熱性樹脂としてアラミドを用い、熱可塑性樹脂として
ＰＰまたはＰＰＳを用いて、耐熱性高分子繊維と熱可塑
性高分子繊維とを混抄し熱１着させたセパレータを作製
しな。Using aramid as the heat-resistant resin and PP or PPS as the thermoplastic resin, a separator is produced by mixing heat-resistant polymer fibers and thermoplastic polymer fibers and bonding them with heat.
セパレータの厚さは５０μｍ、密度は０．４ｇ／ｃｎ３
とした。Separator thickness is 50μm, density is 0.4g/cn3
And so.
このセパレータの引張り強度試験結果を以下に示す。な
お、数値は、セパレータ１５ｎｕｎ当りの荷重ｋｇ （
ｋｇ／ １５１ｍ）で示す。The tensile strength test results of this separator are shown below. In addition, the numerical value is the load kg per 15nun of separators (
kg/151m).
セパレータの引張 強度
アラミド単独 ＰＰ混抄 ｐｐｓ混抄
０．５ １．３ １．４
この結果から、混抄することによりセパレータの強度が
向上することが分る。Tensile strength of separator Aramid alone PP mixed paper pps mixed paper 0.5 1.3 1.4 From these results, it can be seen that the strength of the separator is improved by mixed papermaking.
Claims (2)
上の融点を有するかまたは融点を有さない耐熱高分子繊
維と３５０℃未満の融点を有する熱可塑性高分子繊維と
を混抄し、繊維同志を熱融着した紙または不織布を使用
することを特徴とする電解コンデンサ。(1) As a separator for electrolytic capacitors, heat-resistant polymer fibers with a melting point of 350°C or higher or no melting point are mixed with thermoplastic polymer fibers with a melting point of lower than 350°C, and the fibers are melted together. An electrolytic capacitor characterized by the use of woven paper or nonwoven fabric.
エーテルイミド、ポリアミドイミド、ポリ４フッ化エチ
レン、並びにポリアミノビスマレイミドよりなる群から
選択され、熱可塑性高分子繊維が、ポリプロピレン、ポ
リエチレンテレフタレート、ポリフエニレンサルファイ
ド、ナイロン、レーヨン、エチレン−４フッ化エチレン
、並びにポリフッ化ビニリデンよりなる群から選択され
る請求項１記載の電解コンデンサ。(2) The heat-resistant polymer fiber is selected from the group consisting of aramid, polyimide, polyetherimide, polyamideimide, polytetrafluoroethylene, and polyamino bismaleimide, and the thermoplastic polymer fiber is selected from the group consisting of aramid, polyimide, polyetherimide, polytetrafluoroethylene, and polyamino bismaleimide; The electrolytic capacitor of claim 1, wherein the electrolytic capacitor is selected from the group consisting of phenylene sulfide, nylon, rayon, ethylene-tetrafluoroethylene, and polyvinylidene fluoride.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2175257A JPH0795501B2 (en) | 1990-07-04 | 1990-07-04 | Electrolytic capacitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2175257A JPH0795501B2 (en) | 1990-07-04 | 1990-07-04 | Electrolytic capacitor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0464213A true JPH0464213A (en) | 1992-02-28 |
| JPH0795501B2 JPH0795501B2 (en) | 1995-10-11 |
Family
ID=15993003
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2175257A Expired - Fee Related JPH0795501B2 (en) | 1990-07-04 | 1990-07-04 | Electrolytic capacitor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0795501B2 (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001196270A (en) * | 1999-11-04 | 2001-07-19 | Matsushita Electric Ind Co Ltd | Solid electrolytic capacitor and method of manufacturing the same |
| JP2002203750A (en) * | 2000-12-28 | 2002-07-19 | Nippon Chemicon Corp | Solid-state electrolytic capacitor |
| JP2002367863A (en) * | 2001-06-07 | 2002-12-20 | Nippon Kodoshi Corp | Electrolytic capacitor |
| JP2003059767A (en) * | 2001-08-10 | 2003-02-28 | Nippon Chemicon Corp | Electrolytic capacitor |
| JP2006176932A (en) * | 2004-12-24 | 2006-07-06 | Japan Vilene Co Ltd | Nonwoven fabric and method for producing nonwoven fabric, and separator for electric double layer capacitor, separator for lithium ion secondary battery, electric double layer capacitor or lithium ion secondary battery using nonwoven fabric |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS50122662A (en) * | 1974-03-15 | 1975-09-26 | ||
| JPS5225175A (en) * | 1975-08-21 | 1977-02-24 | Mitsubishi Rayon Co | Manufacture of unwoven fabrics |
| JPS5338767A (en) * | 1976-09-22 | 1978-04-10 | Japan Vilene Co Ltd | High strength unwoven fabric composed of fine fibers and its manufacture |
-
1990
- 1990-07-04 JP JP2175257A patent/JPH0795501B2/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS50122662A (en) * | 1974-03-15 | 1975-09-26 | ||
| JPS5225175A (en) * | 1975-08-21 | 1977-02-24 | Mitsubishi Rayon Co | Manufacture of unwoven fabrics |
| JPS5338767A (en) * | 1976-09-22 | 1978-04-10 | Japan Vilene Co Ltd | High strength unwoven fabric composed of fine fibers and its manufacture |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001196270A (en) * | 1999-11-04 | 2001-07-19 | Matsushita Electric Ind Co Ltd | Solid electrolytic capacitor and method of manufacturing the same |
| JP2002203750A (en) * | 2000-12-28 | 2002-07-19 | Nippon Chemicon Corp | Solid-state electrolytic capacitor |
| JP2002367863A (en) * | 2001-06-07 | 2002-12-20 | Nippon Kodoshi Corp | Electrolytic capacitor |
| JP2003059767A (en) * | 2001-08-10 | 2003-02-28 | Nippon Chemicon Corp | Electrolytic capacitor |
| JP2006176932A (en) * | 2004-12-24 | 2006-07-06 | Japan Vilene Co Ltd | Nonwoven fabric and method for producing nonwoven fabric, and separator for electric double layer capacitor, separator for lithium ion secondary battery, electric double layer capacitor or lithium ion secondary battery using nonwoven fabric |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0795501B2 (en) | 1995-10-11 |
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