JPH01266711A - Electrolytic solution for driving electrolytic capacitor - Google Patents
Electrolytic solution for driving electrolytic capacitorInfo
- Publication number
- JPH01266711A JPH01266711A JP9523988A JP9523988A JPH01266711A JP H01266711 A JPH01266711 A JP H01266711A JP 9523988 A JP9523988 A JP 9523988A JP 9523988 A JP9523988 A JP 9523988A JP H01266711 A JPH01266711 A JP H01266711A
- Authority
- JP
- Japan
- Prior art keywords
- electrolytic capacitor
- electrolytic
- methasilicate
- ethylene glycol
- capacitor
- 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 24
- 239000008151 electrolyte solution Substances 0.000 title claims abstract description 8
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims abstract description 21
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 claims abstract description 5
- 239000002904 solvent Substances 0.000 claims abstract description 5
- IJKVHSBPTUYDLN-UHFFFAOYSA-N dihydroxy(oxo)silane Chemical compound O[Si](O)=O IJKVHSBPTUYDLN-UHFFFAOYSA-N 0.000 claims 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 abstract description 11
- 229910052782 aluminium Inorganic materials 0.000 abstract description 11
- 239000000203 mixture Substances 0.000 abstract description 3
- 239000003792 electrolyte Substances 0.000 description 11
- 239000002253 acid Substances 0.000 description 1
- 238000005868 electrolysis reaction Methods 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 229910052736 halogen Inorganic materials 0.000 description 1
- 150000002367 halogens Chemical class 0.000 description 1
- WYXIGTJNYDDFFH-UHFFFAOYSA-Q triazanium;borate Chemical compound [NH4+].[NH4+].[NH4+].[O-]B([O-])[O-] WYXIGTJNYDDFFH-UHFFFAOYSA-Q 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Abstract
Description
【発明の詳細な説明】
産業上の利用分野
本発明はコンデンサ素子に含浸する電解コンデンサの駆
動用電解液（以下電解液という）に関するものである。DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to an electrolytic solution for driving an electrolytic capacitor (hereinafter referred to as electrolytic solution) which is impregnated into a capacitor element.
従来の技術
従来の中高圧用アルミニウム電解コンデンサの電解液に
おいては、火花電圧が高いことからエチレングリコール
に電解質として、はう酸あるいはほう酸アンモニウムを
溶解したいわゆるエチレングリコールはう酸系電解液が
知られている。Conventional Technology Conventional electrolytes for medium and high voltage aluminum electrolytic capacitors have a high spark voltage, so ethylene glycol-based electrolytes are known, which are made by dissolving halogen acid or ammonium borate as an electrolyte in ethylene glycol. ing.
発明が解決しようとする問題点
しかしかかる電解液を使用したアルミニウム電解コンデ
ンサは、電解液の比抵抗が高いため損失は高く、また電
解液中で発生するエステル水によって高温度での信頼性
は十分ではなかった。Problems to be Solved by the Invention However, aluminum electrolytic capacitors using such an electrolyte have high losses due to the high specific resistance of the electrolyte, and are not sufficiently reliable at high temperatures due to the ester water generated in the electrolyte. It wasn't.
問題点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ためエチレングリコ
ールを主体とした溶媒に少な（とも、メタケイ酸アンモ
ニウムまたはメタケイ酸を溶解させたことを特徴とする
電解コンデンサの電解液である。Means for Solving the Problems In order to solve the above-mentioned problems, the present invention provides an electrolytic capacitor characterized by dissolving a small amount of ammonium metasilicate or metasilicate in a solvent mainly composed of ethylene glycol. It is an electrolyte.
作用
アルミニウム電解コンデンサの電解液として、エチレン
グリコールを主体とした溶媒に少なくともメタケイ酸ア
ンモニウムまたはメタケイ酸を熔解させることによって
、アルミニラ１、電解コンデンサの損失を低くおさえ、
またアルミニウム電解コンデンサの高温における信頼性
試験においても安定した特性を示す。As an electrolyte for an aluminum electrolytic capacitor, at least ammonium metasilicate or metasilicate is dissolved in a solvent mainly composed of ethylene glycol, thereby reducing the loss of aluminum electrolytic capacitors.
It also shows stable characteristics in high-temperature reliability tests of aluminum electrolytic capacitors.
実施例 以下、本発明の具体的実施例について説明する。Example Hereinafter, specific examples of the present invention will be described.
第１表に実施例として本発明に係る電解液（試料記号Ａ
、Ｂ、Ｃ，Ｄ、Ｅ、Ｆ、Ｇ）と比較のための従来の電解
液（試料記号Ｈ）のそれぞれ電解液の組成比、同電解液
の３０°Ｃにおける比抵抗および同電解液の８５℃にお
ける耐電圧を示す。Table 1 shows an example of the electrolytic solution according to the present invention (sample code A
, B, C, D, E, F, G) and a conventional electrolyte (sample symbol H) for comparison, the composition ratio of the electrolyte, the specific resistance of the same electrolyte at 30°C, and the The withstand voltage at 85°C is shown.
第１表
第２表に上記電解？ｆｆｌ （試料記号Ａ、Ｂ、Ｃ，Ｄ
。The above electrolysis in Table 1 and Table 2? ffl (sample symbols A, B, C, D
.
Ｅ、Ｆ、Ｇ、Ｈ）を各々用いてアルミニウム電解コンデ
ンサを製作し、その初期−船待性および１０５℃で定格
電圧を連続印加した高温負荷試験結果を示す。コンデン
サ試料は何れも４００Ｗ Ｖ、２２０μＦのアルミニウ
ム電解コンデンサで、各々２０個の平均値を示す。Aluminum electrolytic capacitors were manufactured using each of aluminum electrolytic capacitors (E, F, G, H), and the results of a high-temperature load test in which a rated voltage was continuously applied at 105° C. and the initial shelf life of the capacitors are shown. The capacitor samples are all 400 W V, 220 μF aluminum electrolytic capacitors, each representing an average value of 20 capacitors.
第 ２ 表
上述の実施例から明らかなように、本発明のエチレング
リコールを主体とした溶媒に少なくともメタケイ酸アン
モニウムまたはメタケイ酸を溶解させた電解液（試料記
号Ａ、Ｂ、Ｃ，Ｄ、Ｅ、、Ｆ、Ｇ）を用いたアルミニウ
ム電解コンデンサ（試料番号１．２．３．４．５．６．
７）は、電解コンデンサの損失を低くおさえ、また電解
コンデンサの高温における信頼性試験においても安定し
た特性を示す。Table 2 As is clear from the above-mentioned Examples, electrolytic solutions (sample symbols A, B, C, D, E, , F, G) using aluminum electrolytic capacitors (sample number 1.2.3.4.5.6.
7) keeps the loss of the electrolytic capacitor low and shows stable characteristics even in high-temperature reliability tests of electrolytic capacitors.
また上述の実施例の他、種々調合比をかえて繰り返し実
験したが、同様な結果が得られた。In addition to the above-mentioned examples, experiments were repeated with various mixing ratios, and similar results were obtained.
発明の効果
以上のように本発明に係る電解コンデンサの電解液は従
来のものに比べ損失が低く、高温度における信頼性の高
い電解コンデンサを提供することが可能となり、工業的
ならびに実用的価値の大なるものである。Effects of the Invention As described above, the electrolytic solution of the electrolytic capacitor according to the present invention has a lower loss than conventional ones, making it possible to provide an electrolytic capacitor that is highly reliable at high temperatures, and has industrial and practical value. It is a big thing.
Claims (1)
ケイ酸アンモニウムまたはメタケイ酸を溶解させたこと
を特徴とする電解コンデンサの駆動用電解液。An electrolytic solution for driving an electrolytic capacitor, characterized in that at least ammonium metasilicate or metasilicic acid is dissolved in a solvent mainly composed of ethylene glycol.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9523988A JPH01266711A (en) | 1988-04-18 | 1988-04-18 | Electrolytic solution for driving electrolytic capacitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9523988A JPH01266711A (en) | 1988-04-18 | 1988-04-18 | Electrolytic solution for driving electrolytic capacitor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01266711A true JPH01266711A (en) | 1989-10-24 |
Family
ID=14132207
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9523988A Pending JPH01266711A (en) | 1988-04-18 | 1988-04-18 | Electrolytic solution for driving electrolytic capacitor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01266711A (en) |
-
1988
- 1988-04-18 JP JP9523988A patent/JPH01266711A/en active Pending
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