JPH05136003A - Electrolytic capacitor - Google Patents
Electrolytic capacitorInfo
- Publication number
- JPH05136003A JPH05136003A JP32707691A JP32707691A JPH05136003A JP H05136003 A JPH05136003 A JP H05136003A JP 32707691 A JP32707691 A JP 32707691A JP 32707691 A JP32707691 A JP 32707691A JP H05136003 A JPH05136003 A JP H05136003A
- Authority
- JP
- Japan
- Prior art keywords
- electrolytic
- electrolytic solution
- solution
- salt
- paper
- 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
Landscapes
- Electric Double-Layer Capacitors Or The Like (AREA)
- Paper (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、電解コンデンサに関す
るものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electrolytic capacitor.
【０００２】[0002]
【従来の技術】従来より低圧用電解コンデンサの電解液
としては、エチレングリコ−ルを主溶媒として、アジピ
ン酸塩を溶解した電解液が多用されていたが、近年、電
解コンデンサの低インピ−ダンス化、高信頼化への対応
に伴い、γ−ブチロラクトンを主溶媒として、フタル酸
のテトラアルキルアンモニウム塩を溶解した電解液が一
般的に使用されている。2. Description of the Related Art Conventionally, as an electrolytic solution for a low-voltage electrolytic capacitor, an electrolytic solution in which ethylene glycol is used as a main solvent and adipic acid salt is dissolved has been widely used. In order to cope with the demand for higher reliability and higher reliability, an electrolytic solution in which a tetraalkylammonium salt of phthalic acid is dissolved is generally used with γ-butyrolactone as a main solvent.
【０００３】[0003]
【発明が解決しようとする課題】電解コンデンサの電解
液として、γ−ブチロラクトンへフタル酸のテトラアル
キルアンモニウム塩を溶解したものは、溶質のエステル
化、変質などが起こりにくいため、高温雰囲気中におけ
る信頼性が非常に高い。しかし、この電解液の主溶媒に
使用しているγ−ブチロラクトンは、高温雰囲気中にお
ける封口部からの蒸散がエチレングリコ−ルなどに比べ
て激しいため、特に小サイズの電解コンデンサでは、封
口部に気密性の良いブチルゴムを用いても、電解コンデ
ンサが保持する電解液量は時間と共に大きく減少し、そ
れに伴い容量減少、ｔａｎδ増加が発生し、さらにはこ
の電解液量の減少が電解コンデンサの寿命を規定してし
まう。The electrolytic solution of the electrolytic capacitor in which the tetraalkylammonium salt of phthalic acid is dissolved in γ-butyrolactone is less likely to undergo esterification or alteration of the solute, and therefore is reliable in a high temperature atmosphere. It has a very high quality. However, the γ-butyrolactone used as the main solvent of this electrolytic solution has a higher degree of evaporation from the sealing portion in a high temperature atmosphere than ethylene glycol, so that the sealing portion is particularly large in small-sized electrolytic capacitors. Even if butyl rubber, which has good airtightness, is used, the amount of electrolytic solution held by the electrolytic capacitor greatly decreases with time, resulting in a decrease in capacity and an increase in tan δ, and this decrease in the amount of electrolytic solution shortens the life of the electrolytic capacitor. I will specify.
【０００４】[0004]
【課題を解決するための手段】本発明は上述の問題点を
解決するもので、高温雰囲気中における電解液の蒸発量
を大幅に低下し、電解コンデンサの寿命特性を大幅に向
上させるものである。すなわち、陽極箔と陰極箔との間
に電解紙を介在させて巻回したコンデンサ素子に電解液
を含浸させた電解コンデンサにおいて、上記電解液が、
γ−ブチロラクトンを主溶媒として、有機酸のテトラア
ルキルアンモニウム塩あるいはテトラアルキルホスホニ
ウム塩を溶解した溶液中に、ＳｉＯを溶解させ、かつ予
め上記電解紙中にゲル化剤としてのリン化合物，ホウ素
化合物あるいは有機酸のアンモニウム塩が含有されてい
ることを特徴とする電解コンデンサである。なお、電解
紙中にリン化合物などゲル化剤を含有させる方法は、電
解紙を抄紙する際の液中にゲル化剤を溶解しておく方
法、電解紙を抄紙した後ゲル化剤の溶解した液中に浸漬
させる方法など、いかなる方法を用いてもよい。SUMMARY OF THE INVENTION The present invention solves the above-mentioned problems, and significantly reduces the evaporation amount of the electrolytic solution in a high temperature atmosphere, and greatly improves the life characteristics of the electrolytic capacitor. .. That is, in an electrolytic capacitor in which an electrolytic solution is impregnated into a capacitor element wound with electrolytic paper interposed between an anode foil and a cathode foil, the electrolytic solution is
Using γ-butyrolactone as a main solvent, SiO is dissolved in a solution in which a tetraalkylammonium salt or a tetraalkylphosphonium salt of an organic acid is dissolved, and a phosphorus compound, a boron compound or a gel compound as a gelling agent is previously prepared in the electrolytic paper. An electrolytic capacitor containing an ammonium salt of an organic acid. The method of incorporating a gelling agent such as a phosphorus compound in the electrolytic paper is a method of dissolving the gelling agent in the liquid when the electrolytic paper is made, or a method of dissolving the gelling agent after making the electrolytic paper. Any method such as a method of immersing in a liquid may be used.
【０００５】[0005]
【作用】本発明の電解液中へ配合されたＳｉＯは、通常
は１０ｍμ程度の粒子であり、粒子表面はＳｉＯＨ基お
よびＯＨ-1イオンが存在して負に帯電しており、これが
周囲の陽イオンと電気二重層を形成し、相互の反発によ
り安定化している。しかし、この電気二重層は電解液中
に価数の大きなイオンが存在する場合、あるいは、電解
液ｐＨがアルカリ領域になった場合には破壊されてしま
い、ＳｉＯ粒子同士が網目状に接合することによって、
電解液のゲル化が生じる。よって、本発明に係わる電解
液を用いた電解コンデンサは、コンデンサ素子への常温
での電解液の含浸の際、電解紙中に含有されているリン
化合物，ホウ素化合物あるいは有機酸のアンモニウム塩
などにより、電解液中のＳｉＯ粒子表面の電気二重層が
破壊されることにより、電解液のゲル化が瞬時に起こる
ため、従来の電解液に比べて高温雰囲気中での電解液の
蒸散量が低下し、電解コンデンサの寿命特性を大幅に向
上させることが可能となる。なお、この電解液のゲル化
は、有機酸のカチオンがテトラメチルアンモニウムの場
合が最も顕著である。The SiO compounded in the electrolytic solution of the present invention is usually particles of about 10 mμ, and the surface of the particles is negatively charged due to the presence of SiOH groups and OH −1 ions. It forms an electric double layer with ions and is stabilized by mutual repulsion. However, this electric double layer is destroyed when ions having a large valence are present in the electrolytic solution, or when the pH of the electrolytic solution is in the alkaline region, and the SiO particles are bonded to each other in a mesh shape. By
Gelation of the electrolytic solution occurs. Therefore, the electrolytic capacitor using the electrolytic solution according to the present invention, when the capacitor element is impregnated with the electrolytic solution at room temperature, by the phosphorus compound, boron compound or ammonium salt of organic acid contained in the electrolytic paper, Since the electric double layer on the surface of the SiO particles in the electrolytic solution is destroyed, the electrolytic solution gels instantly, so that the evaporation amount of the electrolytic solution in the high temperature atmosphere is lower than that in the conventional electrolytic solution. It is possible to greatly improve the life characteristics of the electrolytic capacitor. The gelation of the electrolytic solution is most remarkable when the cation of the organic acid is tetramethylammonium.
【０００６】[0006]
【実施例】以下、本発明の実施例について説明する。表
１は、溶質量１５ｗｔ％の際の本発明の電解液と従来の
電解液の組成、比抵抗および火花発生電圧についての比
較例を示す。なお、表１中電解液試料記号Ａは従来例、
Ｂ，Ｃ，Ｄ，Ｅは本発明例であり、また、表１中ＧＢＬ
はγ−ブチロラクトンを示す。EXAMPLES Examples of the present invention will be described below. Table 1 shows comparative examples of the composition, the specific resistance and the spark generation voltage of the electrolytic solution of the present invention and the conventional electrolytic solution when the dissolved mass is 15 wt%. In addition, the electrolyte sample symbol A in Table 1 is a conventional example,
B, C, D and E are examples of the present invention, and GBL in Table 1
Represents γ-butyrolactone.
【０００７】[0007]
【表１】 [Table 1]
【０００８】表１から明らかなように、本発明に係る試
料記号Ｂ，Ｃ，Ｄ，Ｅの電解液は従来の電解液に比べ、
耐電圧が大幅に向上している。表２は、電解紙として、 ａ：マニラ麻による従来の電解紙 ｂ：ａ．に０．０１ｍｇ／ｃｍの次亜リン酸アンモニウ
ムを含有させた電解紙 ｃ：ａ．に１ｍｇ／ｃｍ2 の次亜リン酸アンモニウムを
含有させた電解紙 ｄ：ａ．に１ｍｇ／ｃｍ2 ほう酸を含有させた電解紙 ｅ：ａ．に１ｍｇ／ｃｍ2 フタル酸アンモニウムを含有
させた電解紙 をそれぞれ巻回した５種類のコンデンサ子を形成し、表
１中電解液試料記号Ａの従来の電解液と、本発明例とし
て試料記号Ｃに示す電解液をそれぞれ含浸して、定格２
５Ｖ ３３０μＦの電解コンデンサを試作し、１０５℃
２０００時間高温負荷試験を行なった際の、電解コン
デンサの容量変化率および重量変化量を示す。As is clear from Table 1, the electrolytic solutions of sample symbols B, C, D and E according to the present invention are
Withstand voltage has improved significantly. Table 2 shows, as electrolytic paper, a: conventional electrolytic paper by Manila hemp b: a. Electrolytic paper containing 0.01 mg / cm 2 of ammonium hypophosphite c: a. Electrolytic paper containing 1 mg / cm 2 of ammonium hypophosphite in d: a. Electrolytic paper containing 1 mg / cm 2 boric acid in e: a. 5 types of capacitor elements were formed by winding electrolytic paper containing 1 mg / cm 2 ammonium phthalate, respectively, and the conventional electrolytic solution of the electrolytic solution sample symbol A in Table 1 and the sample symbol C as an example of the present invention were formed. Each is impregnated with the electrolytic solution shown in and rated 2
Prototype of 5V 330μF electrolytic capacitor, 105 ℃
The rate of capacitance change and the amount of weight change of an electrolytic capacitor when subjected to a 2000-hour high temperature load test are shown.
【０００９】[0009]
【表２】 [Table 2]
【００１０】表２から明らかなように、本発明に係る電
解液および電解紙を用いた電解コンデンサは、長時間の
高温雰囲気中における試験においても全ての特性に問題
がなく、かつ、電解液の蒸散による電解コンデンサ重量
の減少が少ない。また、電解液中ＳｉＯは高温雰囲気中
に長時間放置することによっても、電解液の増粘・ゲル
化が発生するため、通常の電解紙を用いても特性が向上
する。なお、ＳｉＯの配合量は、混合溶媒１００ｇに対
し０．１ｇ未満、あるいは、ゲル化剤としてのリン化合
物，ホウ素化合物あるいは有機酸のアンモニウム塩含有
量が、電解紙１ｃｍ当たり０．０１ｍｇ未満の場合では
電解液の常温でのゲル化が起こらず、また、１５ｇを超
えた場合は析出がみられる。As is clear from Table 2, the electrolytic capacitor using the electrolytic solution and electrolytic paper according to the present invention has no problems in all characteristics even in the test in a high temperature atmosphere for a long time, and the electrolytic solution Little reduction in electrolytic capacitor weight due to evaporation. Further, since SiO in the electrolytic solution is left in a high temperature atmosphere for a long period of time, the electrolytic solution thickens and gels, so that the characteristics are improved even when a normal electrolytic paper is used. When the content of SiO is less than 0.1 g per 100 g of the mixed solvent, or when the content of phosphorus compound, boron compound or ammonium salt of organic acid as a gelling agent is less than 0.01 mg per cm of electrolytic paper. In the case of the electrolyte solution, gelation does not occur at room temperature, and when it exceeds 15 g, precipitation is observed.
【００１１】[0011]
【発明の効果】以上のように、γ−ブチロラクトンを主
溶媒として、有機酸のテトラアルキルアンモニウム塩あ
るいはテトラアルキルホスホニウム塩を溶解した溶液中
に、ＳｉＯを溶解したことを特徴とする電解液を、予め
電解紙中にゲル化剤としてのリン化合物，ホウ素化合物
あるいは有機酸のアンモニウム塩が含有されているコン
デンサ素子に含浸することによって、電解液を常温にお
いてゲル化させることを特徴とする電解コンデンサは、
高温雰囲気中においても高い信頼性を有し、工業的なら
びに実用的価値の大なるものである。As described above, an electrolytic solution characterized by dissolving SiO in a solution in which tetraalkylammonium salt or tetraalkylphosphonium salt of organic acid is dissolved using γ-butyrolactone as a main solvent, An electrolytic capacitor characterized by causing an electrolytic solution to gel at room temperature by impregnating a capacitor element containing a phosphorus compound, a boron compound or an ammonium salt of an organic acid as a gelling agent in electrolytic paper in advance. ,
It has high reliability even in a high temperature atmosphere and has great industrial and practical value.
─────────────────────────────────────────────────────
─────────────────────────────────────────────────── ───
【手続補正書】[Procedure amendment]
【提出日】平成４年２月８日[Submission date] February 8, 1992
【手続補正１】[Procedure Amendment 1]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】特許請求の範囲[Name of item to be amended] Claims
【補正方法】変更[Correction method] Change
【補正内容】[Correction content]
【特許請求の範囲】[Claims]
【手続補正２】[Procedure Amendment 2]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】０００４[Correction target item name] 0004
【補正方法】変更[Correction method] Change
【補正内容】[Correction content]
【０００４】[0004]
【課題を解決するための手段】本発明は上述の問題点を
解決するもので、高温雰囲気中における電解液の蒸発量
を大幅に低下し、電解コンデンサの寿命特性を大幅に向
上させるものである。すなわち、陽極箔と陰極箔との間
に電解紙を介在させて巻回したコンデンサ素子に電解液
を含浸させた電解コンデンサにおいて、上記電解液が、
γ−ブチロラクトンを主溶媒として、有機酸のテトラア
ルキルアンモニウム塩あるいはテトラアルキルホスホニ
ウム塩を溶解した溶液中に、ＳｉＯ２ を溶解させ、かつ
予め上記電解紙中にゲル化剤としてのリン化合物，ホウ
素化合物あるいは有機酸のアンモニウム塩が含有されて
いることを特徴とする電解コンデンサである。なお、電
解紙中にリン化合物などゲル化剤を含有させる方法は、
電解紙を抄紙する際の液中にゲル化剤を溶解しておく方
法、電解紙を抄紙した後ゲル化剤の溶解した液中に浸漬
させる方法など、いかなる方法を用いてもよい。SUMMARY OF THE INVENTION The present invention solves the above-mentioned problems, and significantly reduces the evaporation amount of the electrolytic solution in a high temperature atmosphere, and greatly improves the life characteristics of the electrolytic capacitor. .. That is, in an electrolytic capacitor in which an electrolytic solution is impregnated into a capacitor element wound with electrolytic paper interposed between an anode foil and a cathode foil, the electrolytic solution is
Using γ-butyrolactone as a main solvent, SiO 2 is dissolved in a solution in which a tetraalkylammonium salt or tetraalkylphosphonium salt of an organic acid is dissolved, and a phosphorus compound or a boron compound as a gelling agent in the electrolytic paper in advance. Alternatively, the electrolytic capacitor is characterized by containing an ammonium salt of an organic acid. In addition, the method of containing a gelling agent such as a phosphorus compound in the electrolytic paper,
Any method may be used, such as a method of dissolving the gelling agent in the liquid for making the electrolytic paper, a method of making the electrolytic paper and then immersing it in the liquid in which the gelling agent is dissolved.
【手続補正３】[Procedure 3]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】０００５[Correction target item name] 0005
【補正方法】変更[Correction method] Change
【補正内容】[Correction content]
【０００５】[0005]
【作用】本発明の電解液中へ配合されたＳｉＯ２ は、通
常は１０ｍμ程度の粒子であり、粒子表面はＳｉＯＨ基
およびＯＨ−１イオンが存在して負に帯電しており、こ
れが周囲の陽イオンと電気二重層を形成し、相互の反発
により安定化している。しかし、この電気二重層は電解
液中に価数の大きなイオンが存在する場合、あるいは、
電解液ｐＨがアルカリ領域になった場合には破壊されて
しまい、ＳｉＯ２ 粒子同士が網目状に接合することによ
って、電解液のゲル化が生じる。よって、本発明に係わ
る電解液を用いた電解コンデンサは、コンデンサ素子へ
の常温での電解液の含浸の際、電解紙中に含有されてい
るリン化合物，ホウ素化合物あるいは有機酸のアンモニ
ウム塩などにより、電解液中のＳｉＯ２ 粒子表面の電気
二重層が破壊されることにより、電解液のゲル化が瞬時
に起こるため、従来の電解液に比べて高温雰囲気中での
電解液の蒸散量が低下し、電解コンデンサの寿命特性を
大幅に向上させることが可能となる。なお、この電解液
のゲル化は、有機酸のカチオンがテトラメチルアンモニ
ウムの場合が最も顕著である。The SiO 2 compounded in the electrolytic solution of the present invention is usually particles of about 10 μm, and the surface of the particles is negatively charged due to the presence of SiOH groups and OH −1 ions, which is It forms an electric double layer with cations and is stabilized by mutual repulsion. However, this electric double layer is used when ions of high valence are present in the electrolyte, or
When the pH of the electrolytic solution is in the alkaline range, the electrolytic solution is destroyed, and the SiO 2 particles are joined to each other in a mesh shape, resulting in gelation of the electrolytic solution. Therefore, the electrolytic capacitor using the electrolytic solution according to the present invention, when the capacitor element is impregnated with the electrolytic solution at room temperature, by the phosphorus compound, boron compound or ammonium salt of organic acid contained in the electrolytic paper, Since the electric double layer on the surface of the SiO 2 particles in the electrolytic solution is destroyed, the electrolytic solution gels instantly, so that the evaporation amount of the electrolytic solution in a high temperature atmosphere is lower than that of the conventional electrolytic solution. However, the life characteristics of the electrolytic capacitor can be significantly improved. The gelation of the electrolytic solution is most remarkable when the cation of the organic acid is tetramethylammonium.
【手続補正４】[Procedure amendment 4]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】０００８[Correction target item name] 0008
【補正方法】変更[Correction method] Change
【補正内容】[Correction content]
【０００８】表１から明らかなように、本発明に係る試
料記号Ｂ，Ｃ，Ｄ，Ｅの電解液は従来の電解液に比べ、
耐電圧が大幅に向上している。表２は、電解紙として、 ａ：マニラ麻による従来の電解紙 ｂ：ａ．に０．０１ｍｇ／ｃｍ２の次亜リン酸アンモニ
ウムを含有された電解紙 ｃ：ａ．に１ｍｇ／ｃｍ２の次亜リン酸アンモニウムを
含有された電解紙 ｄ：ａ．に１ｍｇ／ｃｍ２ほう酸を含有させた電解紙 ｅ：ａ．に１ｍｇ／ｃｍ２フタル酸アンモニウムを含有
させた電解紙 をそれぞれ巻回した５種類のコンデンサを形成し、表１
中電解液試料記号Ａの従来の電解液と、本発明例として
試料記号Ｃを示す電解液をそれぞれ含浸して、定格２５
Ｖ ３３０μＦの電解コンデンサを試作し、１０５℃
２０００時間高温負荷試験を行った最の、電解コンデン
サの容量変化率および重量変化量を示す。As is clear from Table 1, the electrolytic solutions of sample symbols B, C, D and E according to the present invention are
Withstand voltage has improved significantly. Table 2 shows, as electrolytic paper, a: conventional electrolytic paper by Manila hemp b: a. Electrolytic paper containing 0.01 mg / cm 2 of ammonium hypophosphite in c: a. Electrolytic paper containing 1 mg / cm 2 of ammonium hypophosphite in d: a. Electrolytic paper containing 1 mg / cm 2 boric acid in e: a. Five types of capacitors were formed by winding electrolytic paper containing 1 mg / cm 2 ammonium phthalate on each side, and
Medium electrolyte solution A conventional electrolyte solution having a sample symbol A and an electrolyte solution having a sample symbol C as an example of the present invention were impregnated with each other to give a rating of 25.
Prototype of electrolytic capacitor of V 330μF, 105 ℃
The rate of change in capacity and the amount of change in weight of the electrolytic capacitor after the 2000-hour high temperature load test are shown.
【手続補正５】[Procedure Amendment 5]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】００１０[Correction target item name] 0010
【補正方法】変更[Correction method] Change
【補正内容】[Correction content]
【００１０】表２から明らかなように、本発明に係る電
解液および電解紙を用いた電解コンデンサは、長時間の
高温雰囲気中における試験においても全ての特性に問題
がなく、かつ、電解液の蒸散による電解コンデンサ重量
の減少が少ない。また、電解液中ＳｉＯ２ は高温雰囲気
中に長時間放置することによっても、電解液の増粘・ゲ
ル化が発生するため、通常の電解紙を用いても特性が向
上する。なお、ＳｉＯ２ の配合量は、混合溶媒１００ｇ
に対し０．１ｇ未満、あるいは、ゲル化剤としてのリン
化合物，ホウ素化合物あるいは有機酸のアンモニウム塩
含有量が、電解紙１ｃｍ２ 当たり０．０１ｍｇ未満の場
合では電解液の常温でのゲル化が起こらず、また、１５
ｇを超えた場合は析出がみられる。As is clear from Table 2, the electrolytic capacitor using the electrolytic solution and electrolytic paper according to the present invention has no problems in all characteristics even in the test in a high temperature atmosphere for a long time, and the electrolytic solution Little reduction in electrolytic capacitor weight due to evaporation. Further, since SiO 2 in the electrolytic solution causes thickening and gelation of the electrolytic solution even when it is left in a high temperature atmosphere for a long time, the characteristics are improved even when a normal electrolytic paper is used. The mixing amount of SiO 2 is 100 g of the mixed solvent.
On the other hand, when the content of phosphorus compound, boron compound or ammonium salt of organic acid as the gelling agent is less than 0.01 mg per 1 cm 2 of electrolytic paper, gelation of the electrolytic solution at room temperature is It won't happen again, 15
If it exceeds g, precipitation is observed.
【手続補正６】[Procedure correction 6]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】００１１[Correction target item name] 0011
【補正方法】変更[Correction method] Change
【補正内容】[Correction content]
【００１１】[0011]
【発明の効果】以上のように、γ−ブチロラクトンを主
溶媒として、有機酸のテトラアルキルアンモニウム塩あ
るいはテトラアルキルホスホニウム塩を溶解した溶液中
に、ＳｉＯ２ を溶解したことを特徴とする電解液を、予
め電解紙中にゲル化剤としてのリン化合物，ホウ素化合
物あるいは有機酸のアンモニウム塩が含有されているコ
ンデンサ素子に含浸することによって、電解液を常温に
おいてゲル化させることを特徴とする電解コンデンサ
は、高温雰囲気中においても高い信頼性を有し、工業的
ならびに実用的価値の大なるものである。As described above, an electrolytic solution characterized by dissolving SiO 2 in a solution of a tetraalkylammonium salt or tetraalkylphosphonium salt of an organic acid using γ-butyrolactone as a main solvent is prepared. An electrolytic capacitor characterized in that an electrolytic solution is gelled at room temperature by impregnating a capacitor element containing a phosphorus compound, a boron compound or an ammonium salt of an organic acid as a gelling agent in electrolytic paper in advance. Has high reliability even in a high temperature atmosphere and has great industrial and practical value.
Claims (4)
せて巻回したコンデンサ素子に電解液を含浸させた電解
コンデンサにおいて、上記電解液が、γ−ブチロラクト
ンを主溶媒として、有機酸のテトラアルキルアンモニウ
ム塩あるいはテトラアルキルホスホニウム塩を溶解した
溶液中に、ＳｉＯを溶解させ、かつ予め上記電解紙中に
ゲル化剤としてのリン化合物，ホウ素化合物あるいは有
機酸のアンモニウム塩が含有されていることを特徴とす
る電解コンデンサ。1. An electrolytic capacitor comprising a capacitor element wound with an electrolytic paper interposed between an anode foil and a cathode foil and impregnated with the electrolytic solution, wherein the electrolytic solution contains γ-butyrolactone as a main solvent. SiO is dissolved in a solution in which a tetraalkylammonium salt or tetraalkylphosphonium salt of an acid is dissolved, and a phosphorus compound, a boron compound or an ammonium salt of an organic acid as a gelling agent is previously contained in the electrolytic paper. Electrolytic capacitor characterized by having.
０ｇに対し０．１〜１５ｇ存在することを特徴とする請
求項１の電解コンデンサ。2. SiO in the electrolyte is mixed solvent 10
The electrolytic capacitor according to claim 1, wherein 0.1 to 15 g is present per 0 g.
合物，ホウ素化合物あるいは有機酸のアンモニウム塩含
有量は、電解紙１ｃｍ当たり０．０１ｍｇ以上存在する
ことを特徴とする請求項１の電解コンデンサ。3. The electrolysis paper according to claim 1, wherein the content of a phosphorus compound, a boron compound or an ammonium salt of an organic acid as a gelling agent in the electrolytic paper is 0.01 mg or more per cm of the electrolytic paper. Capacitors.
含浸することによって、電解液が常温においてゲル化す
ることを特徴とする請求項１の電解コンデンサ。4. The electrolytic capacitor according to claim 1, wherein the electrolytic solution gels at room temperature by impregnating the electrolytic capacitor element with the electrolytic solution.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP32707691A JP3242430B2 (en) | 1991-11-14 | 1991-11-14 | Electrolytic capacitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP32707691A JP3242430B2 (en) | 1991-11-14 | 1991-11-14 | Electrolytic capacitor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH05136003A true JPH05136003A (en) | 1993-06-01 |
| JP3242430B2 JP3242430B2 (en) | 2001-12-25 |
Family
ID=18195024
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP32707691A Expired - Fee Related JP3242430B2 (en) | 1991-11-14 | 1991-11-14 | Electrolytic capacitor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3242430B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007058445A1 (en) | 2005-11-15 | 2007-05-24 | Lg Chem, Ltd. | Electrolyte for lithium secondary battery of improved low-temperature property and secondary battery containing the same |
-
1991
- 1991-11-14 JP JP32707691A patent/JP3242430B2/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007058445A1 (en) | 2005-11-15 | 2007-05-24 | Lg Chem, Ltd. | Electrolyte for lithium secondary battery of improved low-temperature property and secondary battery containing the same |
| EP1949486A1 (en) * | 2005-11-15 | 2008-07-30 | LG Chem, Ltd. | Electrolyte for lithium secondary battery of improved low-temperature property and secondary battery containing the same |
| EP1949486A4 (en) * | 2005-11-15 | 2010-01-20 | Lg Chemical Ltd | Electrolyte for lithium secondary battery of improved low-temperature property and secondary battery containing the same |
| US8067114B2 (en) | 2005-11-15 | 2011-11-29 | Lg Chem, Ltd. | Electrolyte for lithium secondary battery of improved low-temperature property and secondary battery containing the same |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3242430B2 (en) | 2001-12-25 |
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