JPH0795501B2 - Electrolytic capacitor - Google Patents
Electrolytic capacitorInfo
- Publication number
- JPH0795501B2 JPH0795501B2 JP2175257A JP17525790A JPH0795501B2 JP H0795501 B2 JPH0795501 B2 JP H0795501B2 JP 2175257 A JP2175257 A JP 2175257A JP 17525790 A JP17525790 A JP 17525790A JP H0795501 B2 JPH0795501 B2 JP H0795501B2
- Authority
- JP
- Japan
- Prior art keywords
- separator
- electrolytic capacitor
- heat
- fibers
- electrolytic
- 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
Links
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。Description: TECHNICAL FIELD The present invention relates to an electrolytic capacitor using a separator having a unique configuration, and more specifically, a material obtained by mixing two kinds of fibers having different properties for an electrolytic capacitor. 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-capacity, inexpensive, have excellent characteristics such as smoothing of rectified output, and are one of the important components of various electric 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。
この際、陽極箔と集電陰極箔との間に例えば多孔質のセ
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
る手段がしばしば用いられる。Generally, in an electrolytic solution type aluminum electrolytic capacitor, an anode foil having a surface oxide film by electrolytic oxidation is used, and this oxide film is used as a dielectric, and a predetermined electrolytic solution is interposed between the electrolytic capacitor and the electrolytic cathode capacitor to form an electrolytic capacitor. Is manufactured.
At this time, for example, by sandwiching a porous separator between the anode foil and the collector cathode foil, a means for ensuring the carrying of the electrolytic solution and for ensuring the isolation between the anode foil and the cathode foil in the product is often used. 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。Generally, in the case of an electrolytic solution type electrolytic capacitor, the product characteristics of the electrolytic capacitor are mainly defined by the properties of the electrolytic solution interposed between the anode and the cathode. Unlike the anode, cathode, dielectric oxide film, electrolytic solution, etc., the separator is not a basic constituent element of an electrolytic capacitor, but if a separator is used to improve product stability and life characteristics, The nature of the resulting separator will affect the overall performance of the capacitor.
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 considered that the mechanical strength of the separator can surely affect the life characteristics and the like of the 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、耐熱性を高めるために、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 a separator for electrolytic capacitors, paper made of cellulosic fibers such as manila paper and kraft paper is generally widely used. Further, in order to improve heat resistance, heat resistant fibers such as aramid are also used. However, since these materials have low mechanical strength, they become a factor that hinders the overall performance improvement of the product electrolytic capacitor, and also from the viewpoint of the manufacturing process in which machining is performed, a separator made of a material with high strength is desired. 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 having a unique structure, and by using a material obtained by mixing two kinds of fibers having different properties as a separator for an 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、
耐熱性高分子繊維と熱可塑性高分子繊維とを混抄し、繊
維同士を熱融着した紙または不織布を使用する電解コン
デンサが提供される。[Means for Solving the Problems] According to the present invention, as a separator for an electrolytic capacitor,
Provided is an electrolytic capacitor which uses a paper or a non-woven fabric obtained by mixing heat-resistant polymer fibers and thermoplastic polymer fibers and thermally fusing the fibers together.
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）、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 polyaminobismaleimide, and the thermoplastic polymer fiber is PP (polypropylene), PET. (Polyethylene terephthalate), PPS (Polyphenylene sulfide), Nylon, Rayon, ETFE
It is preferable if it is selected from the group consisting of (ethylene-4fluoroethylene) 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
して繊維同士を熱融着した紙または不織布は、好ましく
は厚さ20〜100μｍ、密度0.2〜1.0g/cm3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 heat-resistant polymer fiber and the thermoplastic polymer fiber of the present invention are mixed and heat-bonded to each other, and the paper or nonwoven fabric is preferably 20 to 100 μm in thickness and 0.2 to 1.0 g / cm 3 in density. 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
して繊維同士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 heat-resistant polymer fiber and the thermoplastic polymer fiber of the present invention are mixed and heat-bonded to each other in the paper or non-woven fabric, and the fibers are fused at the intersecting portions of the fibers. Even if the density is lowered, a predetermined strength can be maintained.
［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。[Operation] As described above, as a separator for an electrolytic capacitor, paper made of cellulosic fibers such as manila paper and kraft paper is usually widely used. Further, in order to improve heat resistance, heat resistance such as aramid is used. Although fibers were also used, these materials had a weak mechanical strength, which was a factor that hindered the overall performance improvement of the product electrolytic capacitor.
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。The present invention mixes a thermoplastic resin fiber and a highly heat-resistant fiber as two types of fibers having different properties and heat-bonds them to increase the mechanical strength, and this is used as a separator for electrolytic capacitors. It is intended to provide an electrolytic capacitor that can be used to improve the strength of the separator.
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、セパー
レータの強度を向上させることができる。According to the present invention, the strength of the separator can be improved by using, for example, PP, PPS or the like as the thermoplastic resin and using aramid, polyimide, polyetherimide or the like as the heat resistant resin.
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 intersecting portions between the fibers are used as a separator, the tensile strength of the fibers is improved and the strength can be maintained even if the density is lowered.
［発明の効果］ 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。[Effect of the Invention] According to the present invention, an electrolytic capacitor using a separator having a unique structure, wherein a heat-resistant polymer fiber and a thermoplastic polymer fiber are mixed and heat-treated as two types of fibers having different properties 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］ 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 is described in more detail below with reference to Examples, 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融着させたセパレータを作製し
た。Aramid is used as the heat resistant resin, and as the thermoplastic resin
Using PP or PPS, a heat-resistant polymer fiber and a thermoplastic polymer fiber were mixed and heat-bonded to prepare a separator.
セパレータの厚さは50μｍ、密度は0.4g/cm3とした。The thickness of the separator was 50 μm and the density was 0.4 g / cm 3 .
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15mm当りの荷重kg（kg/15mm）
で示す。The tensile strength test results of this separator are shown below. The values are the load kg per 15 mm separator (kg / 15 mm).
Indicate.
セパレータの引張り強度 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 mixing paper.
Claims (1)
ミド、ポリイミド、ポリエーテルイミド、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る耐熱性高分子繊維と
ポリプロピレン、ポリエチレンテレフタレート、ポリフ
ェ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熱可塑性高分子繊維とを混抄し、
繊維同士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. A heat-resistant polymer fiber selected from the group consisting of aramid, polyimide, polyetherimide, polyamideimide, polytetrafluoroethylene, and polyaminobismaleimide, and polypropylene, polyethylene terephthalate, as a separator for electrolytic capacitors. Polyphenylene sulfide, nylon, rayon, ethylene-4 fluorinated ethylene, and mixed with a thermoplastic polymer fiber selected from the group consisting of polyvinylidene fluoride,
An electrolytic capacitor comprising a paper or non-woven fabric in which fibers are heat-sealed.
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 JPH0464213A (en) | 1992-02-28 |
| JPH0795501B2 true 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) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4560940B2 (en) * | 1999-11-04 | 2010-10-13 | パナソニック株式会社 | Solid electrolytic capacitor and manufacturing method thereof |
| 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 |
| JP4646462B2 (en) * | 2001-08-10 | 2011-03-09 | 日本ケミコン株式会社 | Electrolytic capacitor |
| JP4584702B2 (en) * | 2004-12-24 | 2010-11-24 | 日本バイリーン株式会社 | 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 |
Family Cites Families (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 |
| JPS6025541B2 (en) * | 1976-09-22 | 1985-06-19 | 日本バイリ−ン株式会社 | High-strength nonwoven fabric made of fine fibers and method for producing the same |
-
1990
- 1990-07-04 JP JP2175257A patent/JPH0795501B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0464213A (en) | 1992-02-28 |
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