JPH0391912A - Electrolyte for driving electrolytic capacitor - Google Patents
Electrolyte for driving electrolytic capacitorInfo
- Publication number
- JPH0391912A JPH0391912A JP22871189A JP22871189A JPH0391912A JP H0391912 A JPH0391912 A JP H0391912A JP 22871189 A JP22871189 A JP 22871189A JP 22871189 A JP22871189 A JP 22871189A JP H0391912 A JPH0391912 A JP H0391912A
- Authority
- JP
- Japan
- Prior art keywords
- electrolyte
- electrolytic capacitor
- carboxylic acid
- tetraalkylammonium salt
- conductivity
- 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 16
- 239000003792 electrolyte Substances 0.000 title abstract description 8
- 150000001732 carboxylic acid derivatives Chemical class 0.000 claims abstract description 7
- 150000005621 tetraalkylammonium salts Chemical class 0.000 claims abstract description 6
- 239000002798 polar solvent Substances 0.000 claims abstract description 3
- LKMJVFRMDSNFRT-UHFFFAOYSA-N 2-(methoxymethyl)oxirane Chemical compound COCC1CO1 LKMJVFRMDSNFRT-UHFFFAOYSA-N 0.000 claims abstract 3
- 239000008151 electrolyte solution Substances 0.000 claims description 9
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 abstract description 9
- YEJRWHAVMIAJKC-UHFFFAOYSA-N 4-Butyrolactone Chemical compound O=C1CCCO1 YEJRWHAVMIAJKC-UHFFFAOYSA-N 0.000 abstract description 6
- 238000000034 method Methods 0.000 abstract description 2
- 239000012046 mixed solvent Substances 0.000 abstract description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 3
- 229910052782 aluminium Inorganic materials 0.000 description 3
- 239000011888 foil Substances 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- LCGLNKUTAGEVQW-UHFFFAOYSA-N Dimethyl ether Chemical compound COC LCGLNKUTAGEVQW-UHFFFAOYSA-N 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- XNGIFLGASWRNHJ-UHFFFAOYSA-N phthalic acid Chemical compound OC(=O)C1=CC=CC=C1C(O)=O XNGIFLGASWRNHJ-UHFFFAOYSA-N 0.000 description 2
- OFOBLEOULBTSOW-UHFFFAOYSA-N Propanedioic acid Natural products OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- VZCYOOQTPOCHFL-UPHRSURJSA-N maleic acid Chemical compound OC(=O)\C=C/C(O)=O VZCYOOQTPOCHFL-UPHRSURJSA-N 0.000 description 1
- 239000011976 maleic acid Substances 0.000 description 1
- 239000012266 salt solution Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 125000005207 tetraalkylammonium group Chemical group 0.000 description 1
- VZCYOOQTPOCHFL-UHFFFAOYSA-N trans-butenedioic acid Natural products OC(=O)C=CC(O)=O VZCYOOQTPOCHFL-UHFFFAOYSA-N 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Landscapes
- Electric Double-Layer Capacitors Or The Like (AREA)
Abstract
Description
【発明の詳細な説明】
［産業上の利用分野］
本発明は、アルミニウム電解コンデンサに使用される電
解コンデンサ駆動用電解液に関するものである。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an electrolytic solution for driving an electrolytic capacitor used in an aluminum electrolytic capacitor.
［従来の技術］
アルミニウム電解コンデンサにおいては，アルミニウム
箔からなる陽極箔と陰極箔とをセバレー夕を介在して巻
回したコンデンサ素子に駆動用電解液を含浸し、このコ
ンデンサ素子を封口体と共に外装ケース内に封入した構
造を有する。[Prior art] In an aluminum electrolytic capacitor, a capacitor element is made by winding an anode foil and a cathode foil made of aluminum foil with a separator interposed in between, and is impregnated with a driving electrolyte, and this capacitor element is packaged together with a sealing body. It has a structure enclosed within a case.
この種の電解コンデンサ駆動用電解液としては，同電解
液の電導度を高くすることを目的としてγ−プチロラク
トンやエチレングリコールなどの有機極性溶媒にフタル
酸やマレイン酸などのカルボン酸のテトラアルキルアン
モニウム塩を溶解したものが、例えば特開昭６２−１４
５７１５号公報および特開昭６２−１４５７１３号公報
などにより知られている。In order to increase the conductivity of this type of electrolytic capacitor, tetraalkyl ammonium of a carboxylic acid such as phthalic acid or maleic acid is added to an organic polar solvent such as γ-butyrolactone or ethylene glycol. For example, JP-A-62-14 discloses a salt solution.
This method is known from Japanese Patent Application Laid-open No. 5715 and Japanese Patent Application Laid-Open No. 145713/1983.
［発明が解決しようとする課題］
上述した電解液は電導度が高いので、同電解液を使用し
た電解コンデンサは損失角の正接や等価直列抵抗値を低
く，することができ、製品の信頼性を向上することがで
きるので好ましいものである．しかし、この電解液は電
導度が高いために，火花電圧が低くより高い電圧で使用
される電解コンデンサの適用には困難なものであった．
［課題を解決するための手段］
しかるに、本発明はカルボン酸のテトラアルキルアンモ
ニウム塩を溶質として使用した電解コンデンサ駆動用電
解液において，高い電導度を損うことなく，より高い火
花電圧を有する電解液を提供するものである．具体的に
は、γ−プチロラクトンやエチレングリコールなどの単
独あるいは混合溶媒にカルボン酸のテトラアルキルアン
モニウム塩を溶解し，２．３−エポキシブロビルメチル
エーテルを添加することにより電解液の火花電圧の上昇
を図るものである．
本発明に係る２．３−エボキシプロビルメチルエーテル
の添加量は０．５〜３０ｗｔ％が好ましく、より好まし
くはｌ ＝ １ ０ ｗ ｔ％である．［実旅例１
以下に、本発明に係る実施例を比較例と対比して述べる
．
先ず，第１表に電解コンデンサ駆動用電解液の組成と電
導度および火花電圧の関係を示す。電導度は液温４０℃
で測定し、火花電圧は液温８５℃で火花が発生した電圧
を測定した。[Problem to be solved by the invention] Since the electrolytic solution described above has high conductivity, an electrolytic capacitor using the same electrolytic solution can have a low tangent of loss angle and a low equivalent series resistance value, which improves product reliability. This is preferable because it can improve the However, due to the high conductivity of this electrolyte, it was difficult to apply it to electrolytic capacitors, which have low spark voltage and are used at higher voltages.
[Means for Solving the Problems] However, the present invention provides an electrolytic solution that has a higher spark voltage without impairing high conductivity in an electrolytic solution for driving an electrolytic capacitor using a tetraalkylammonium salt of carboxylic acid as a solute. It provides liquid. Specifically, by dissolving a tetraalkylammonium salt of carboxylic acid in a single or mixed solvent such as γ-butyrolactone or ethylene glycol, and adding 2,3-epoxybrobyl methyl ether, the spark voltage of the electrolyte can be increased. The aim is to The amount of 2.3-epoxypropyl methyl ether added according to the present invention is preferably 0.5 to 30 wt%, more preferably l = 10 wt%. [Actual Travel Example 1] Examples according to the present invention will be described below in comparison with comparative examples. First, Table 1 shows the relationship between the composition of the electrolytic solution for driving an electrolytic capacitor, conductivity, and spark voltage. Conductivity is at liquid temperature of 40℃
The spark voltage was measured as the voltage at which a spark was generated at a liquid temperature of 85°C.
第１表
電解コンデンサ駆動用電解液の組成と
電導度および火花電圧の関係
第１表
（つづき）
［効 果］
本発明に係る電解液は電導度の低下を招くことなく火花
電圧を上昇を図ることができるので、より高い電圧で使
用される電解コンデンサに適用できるという利点を奏す
るちのである．Table 1 Relationship between the composition of electrolytic solution for driving an electrolytic capacitor, conductivity, and spark voltage Table 1 (Continued) [Effects] The electrolytic solution according to the present invention aims to increase the spark voltage without causing a decrease in conductivity. This has the advantage that it can be applied to electrolytic capacitors used at higher voltages.
Claims (1)
モニウム塩を溶解してなる電解コンデンサ駆動用電解液
において、２，３−エポキシプロピルメチルエーテルを
添加したことを特徴とする電解コンデンサ駆動用電解液
。(1) An electrolytic solution for driving an electrolytic capacitor, which is formed by dissolving a tetraalkylammonium salt of a carboxylic acid in an organic polar solvent, and is characterized in that it contains 2,3-epoxypropyl methyl ether.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22871189A JPH0391912A (en) | 1989-09-04 | 1989-09-04 | Electrolyte for driving electrolytic capacitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22871189A JPH0391912A (en) | 1989-09-04 | 1989-09-04 | Electrolyte for driving electrolytic capacitor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0391912A true JPH0391912A (en) | 1991-04-17 |
Family
ID=16880613
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP22871189A Pending JPH0391912A (en) | 1989-09-04 | 1989-09-04 | Electrolyte for driving electrolytic capacitor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0391912A (en) |
-
1989
- 1989-09-04 JP JP22871189A patent/JPH0391912A/en active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPH0391912A (en) | Electrolyte for driving electrolytic capacitor | |
| JP2572021B2 (en) | Electrolyte for electrolytic capacitors | |
| JPH01124210A (en) | Electrolyte for driving electrolytic capacitor | |
| JPH0391913A (en) | Electrolyte for driving electrolytic capacitor | |
| JPH02194611A (en) | Electrolyte for driving electrolytic capacitor | |
| JP3749913B2 (en) | Electrolytic solution for electrolytic capacitor drive | |
| JPH0437111A (en) | Electrolyte for electrolytic capacitor | |
| JPH07118432B2 (en) | Electrolytic solution for driving electrolytic capacitors | |
| JP3163682B2 (en) | Molten salt type electrolyte for driving electrolytic capacitor and electrolytic capacitor using the same | |
| JPH01114025A (en) | Electrolyte for driving electrolytic capacitor | |
| JPH0391914A (en) | Electrolyte for driving electrolytic capacitor | |
| JPH0658868B2 (en) | Electrolytic solution for driving electrolytic capacitors | |
| JPS6345711A (en) | Electrolytic capacitor | |
| JPH0355969B2 (en) | ||
| JPH0255925B2 (en) | ||
| JPH02148818A (en) | Electrolyte for driving electrolytic capacitor | |
| JPH0782967B2 (en) | Electrolytic solution for driving electrolytic capacitors | |
| JPH01124211A (en) | Electrolyte for driving electrolytic capacitor | |
| JPH01103822A (en) | Electrolytic capacitor | |
| JP2002299178A (en) | Electrolyte for driving electrolytic capacitor | |
| JPH05243092A (en) | Electrolytic liquid for electrolytic capacitor | |
| JPH07120615B2 (en) | Electrolytic solution for driving electrolytic capacitors | |
| JPH05144673A (en) | Electrolytic solution for electrolytic capacitor | |
| JPH07201670A (en) | Electrolytic capacitor driving electrolytic solution | |
| JPS631017A (en) | Electrolyte for capacitor |