JPS63302514A - Electrolyte for driving aluminum electrolytic capacitor - Google Patents
Electrolyte for driving aluminum electrolytic capacitorInfo
- Publication number
- JPS63302514A JPS63302514A JP13878087A JP13878087A JPS63302514A JP S63302514 A JPS63302514 A JP S63302514A JP 13878087 A JP13878087 A JP 13878087A JP 13878087 A JP13878087 A JP 13878087A JP S63302514 A JPS63302514 A JP S63302514A
- Authority
- JP
- Japan
- Prior art keywords
- acid
- electrolyte
- butyrolactone
- gamma
- aluminum 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.)
- Granted
Links
- 239000003990 capacitor Substances 0.000 title claims abstract description 25
- 239000003792 electrolyte Substances 0.000 title claims abstract description 15
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title claims description 14
- 229910052782 aluminium Inorganic materials 0.000 title claims description 14
- SLAMLWHELXOEJZ-UHFFFAOYSA-N 2-nitrobenzoic acid Chemical compound OC(=O)C1=CC=CC=C1[N+]([O-])=O SLAMLWHELXOEJZ-UHFFFAOYSA-N 0.000 claims abstract description 9
- 239000002904 solvent Substances 0.000 claims abstract description 5
- AFPHTEQTJZKQAQ-UHFFFAOYSA-N 3-nitrobenzoic acid Chemical compound OC(=O)C1=CC=CC([N+]([O-])=O)=C1 AFPHTEQTJZKQAQ-UHFFFAOYSA-N 0.000 claims abstract description 4
- OTLNPYWUJOZPPA-UHFFFAOYSA-N 4-nitrobenzoic acid Chemical compound OC(=O)C1=CC=C([N+]([O-])=O)C=C1 OTLNPYWUJOZPPA-UHFFFAOYSA-N 0.000 claims abstract description 4
- 150000007524 organic acids Chemical class 0.000 claims abstract description 4
- 150000003242 quaternary ammonium salts Chemical class 0.000 claims abstract description 4
- 150000003839 salts Chemical class 0.000 claims abstract description 4
- YEJRWHAVMIAJKC-UHFFFAOYSA-N 4-Butyrolactone Chemical compound O=C1CCCO1 YEJRWHAVMIAJKC-UHFFFAOYSA-N 0.000 claims abstract 10
- 239000008151 electrolyte solution Substances 0.000 claims description 6
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 abstract description 6
- -1 chlorine ions Chemical class 0.000 abstract description 4
- 238000005260 corrosion Methods 0.000 abstract description 4
- 230000007797 corrosion Effects 0.000 abstract description 4
- 229910052801 chlorine Inorganic materials 0.000 abstract description 3
- 239000000460 chlorine Substances 0.000 abstract description 3
- VRUJCFSQHOLHRM-UHFFFAOYSA-L phthalate;tetramethylazanium Chemical compound C[N+](C)(C)C.C[N+](C)(C)C.[O-]C(=O)C1=CC=CC=C1C([O-])=O VRUJCFSQHOLHRM-UHFFFAOYSA-L 0.000 abstract 2
- 239000004215 Carbon black (E152) Substances 0.000 abstract 1
- 230000015572 biosynthetic process Effects 0.000 abstract 1
- 239000003599 detergent Substances 0.000 abstract 1
- 229930195733 hydrocarbon Natural products 0.000 abstract 1
- 150000005338 nitrobenzoic acids Chemical class 0.000 abstract 1
- 150000008282 halocarbons Chemical class 0.000 description 6
- 238000004140 cleaning Methods 0.000 description 4
- 239000012459 cleaning agent Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 150000003863 ammonium salts Chemical class 0.000 description 1
- 150000001732 carboxylic acid derivatives Chemical class 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229940021013 electrolyte solution Drugs 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 239000012046 mixed solvent Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 229910000679 solder Inorganic materials 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Electric Double-Layer Capacitors Or The Like (AREA)
- Detergent Compositions (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おハロゲン化炭
化水素で洗浄した場合にコンデンサ内部にハロゲン化炭
化水素が透過して生ずるコンデンサ素子の腐食を防止し
、寿命特性を向上せしめるアルミニウム電解コンデンサ
の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 prevents corrosion of capacitor elements caused by penetration of halogenated hydrocarbons into the capacitors when aluminum electrolytic capacitors are cleaned with halogenated hydrocarbons, thereby extending the service life of the capacitor elements. This invention relates to an electrolytic solution for driving an aluminum electrolytic capacitor that improves its characteristics.
従来の技術
従来からアルミニウム電解コンデンサに用いられている
駆動用電解液には、エチレングリコールと水からなる混
合溶媒に、カルボン酸のアンモニウム塩を溶質としたも
のが用いられている。BACKGROUND OF THE INVENTION Conventionally, driving electrolytes used in aluminum electrolytic capacitors include a mixed solvent of ethylene glycol and water with an ammonium salt of carboxylic acid as a solute.
本発明が解決しようとする問題点
アルミニウム電解コンデンサに対しては、洗浄工程や、
印刷基板へ取着する時に用いるハンダフランクスの除去
工程で、洗浄剤として使用されるハロゲン化炭化水素へ
の浸漬あるいは蒸気浴などによって、このハロゲン化炭
化水素がゴム栓を透過してコンデンサ内に侵入し、分解
して塩素イオンを生成し、この塩素イオンによってコン
デンサ素子を腐食させることがあった。 ゛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もので、従来のアル
ミニウム電解コンデンサの駆動用電解液から得られる優
れた特性を損なうことなく、アルミニラム電解コンデン
サにも洗浄工程を取り入れることが可能な駆動用電解液
を提供するものである。すなわち、Ｔ−ブチロラクトン
を主溶媒として有機酸の４級アンモニウム塩を溶質とし
た溶液に、ニトロ安息香酸、またはその塩を添加したこ
とを特徴とするアルミニウム電解コンデンサの駆動用電
解液である。Problems to be Solved by the Invention Regarding aluminum electrolytic capacitors, cleaning process,
During the removal process of solder flanks used when attaching to printed circuit boards, halogenated hydrocarbons can penetrate through the rubber stopper and enter the capacitor by immersion in halogenated hydrocarbons used as a cleaning agent or in a steam bath. However, it decomposes to produce chlorine ions, which can corrode capacitor elements.゛Means for Solving the Problems The present invention solves the above-mentioned problems and allows cleaning of aluminum electrolytic capacitors without impairing the excellent characteristics obtained from the driving electrolyte of conventional aluminum electrolytic capacitors. The present invention provides a driving electrolytic solution that can be incorporated into various processes. That is, the electrolytic solution for driving an aluminum electrolytic capacitor is characterized in that nitrobenzoic acid or a salt thereof is added to a solution containing T-butyrolactone as a main solvent and a quaternary ammonium salt of an organic acid as a solute.
作用
本発明の駆動用電解液は、洗浄剤として使用されるハロ
ゲン化炭化水素がコンデンサケース内に侵入しても塩素
イオンの分解を抑制し、コンデンサ素子の腐食を防止す
る。Operation The driving electrolyte of the present invention suppresses decomposition of chlorine ions even if a halogenated hydrocarbon used as a cleaning agent enters the capacitor case, thereby preventing corrosion of the capacitor element.
実施例 以下、本発明の実施例について説明する。Example Examples of the present invention will be described below.
第１表は、本発明と従来品のアルミニウム電解コンデン
サに用いた駆動用電解液の組成、比砥抗についての比較
例を示す。第１表中電解液試料記号Ａは従来例、Ｂは比
較例、Ｃ，Ｄは本発明例である。Table 1 shows comparative examples regarding the composition and specific abrasion resistance of driving electrolytes used in aluminum electrolytic capacitors of the present invention and conventional products. In Table 1, the electrolyte sample symbol A is a conventional example, B is a comparative example, and C and D are examples of the present invention.
第１表
さらに、第１表に示す電解液Ａ、Ｂ、Ｃ，Ｄを用いて第
１図に示す定格５０ＷＶ、２２μＦのアルミニウム電解
コンデンサを各々２０個製作し、ハロゲン化炭化水素系
の洗浄液に浸漬し、エージングおよび１０５℃２０００
時間の高温負荷試験を行った結果を第２表に示す。Table 1 Furthermore, 20 aluminum electrolytic capacitors each with a rating of 50 WV and 22 μF as shown in Fig. 1 were manufactured using electrolytes A, B, C, and D shown in Table 1, and then washed with a halogenated hydrocarbon-based cleaning solution. Soaked, aged and 105℃2000
Table 2 shows the results of the high temperature load test for hours.
第１表において１は、上述の電解液を含浸したコンデン
サ素子、２はアルミニウムケース、３は弾性封口体であ
る。In Table 1, 1 is a capacitor element impregnated with the above electrolyte, 2 is an aluminum case, and 3 is an elastic sealing body.
本発明に係る電解液試料記号Ｃ，Ｄの電解液を用いたも
のは、上述の洗浄液がコンデンサ素子内に侵入しても、
高温負荷試験において腐食発生が無く、全ての特性に問
題なく改良効果かえられている。なお、メタニトロ安息
香酸、あるいはオルトニトロ安息香酸、メタニトロ安息
香酸、パラニトロ安息香酸の混合添加についても第１表
の実施例と同様な扱い方において同等特性を示した。The electrolyte solutions according to the present invention with electrolyte sample symbols C and D can be used even if the above-mentioned cleaning solution penetrates into the capacitor element.
No corrosion occurred in the high-temperature load test, and all properties were improved without any problems. Note that the mixed addition of meta-nitrobenzoic acid, ortho-nitrobenzoic acid, meta-nitrobenzoic acid, and para-nitrobenzoic acid also showed equivalent characteristics when treated in the same manner as in the Examples shown in Table 1.
第２表
※ ２０００ＷｆＪ１の特性は防爆弁作動品を除いたも
のの平均である。Table 2 * Characteristics of 2000WfJ1 are averages excluding explosion-proof valve operating products.
発明の効果
以上のように、本発明の駆動用電解液を使用することに
より、洗浄剤に耐え信頼性の高いアルミ電解コンデンサ
が得られる。Effects of the Invention As described above, by using the driving electrolyte of the present invention, an aluminum electrolytic capacitor that can withstand cleaning agents and is highly reliable can be obtained.
第１図は電解コンデンサの実施例の断面図である。 FIG. 1 is a sectional view of an embodiment of an electrolytic capacitor.
Claims (2)
アンモニウム塩を溶解してなる電解液にニトロ安息香酸
、またはその塩を添加して溶解したことを特徴とするア
ルミニウム電解コンデンサの駆動用電解液。(1) For driving an aluminum electrolytic capacitor, characterized in that nitrobenzoic acid or its salt is added and dissolved in an electrolytic solution prepared by using γ-butyrolactone as a main solvent and dissolving a quaternary ammonium salt of an organic acid. Electrolyte.
メタニトロ安息香酸、パラニトロ安息香酸の１種、また
は２種以上であることを特徴とする特許請求の範囲第１
項記載のアルミニウム電解コンデンサの駆動用電解液。(2) The above nitrobenzoic acid is orthonitrobenzoic acid,
Claim 1 characterized in that it is one or more of meta-nitrobenzoic acid and para-nitrobenzoic acid.
An electrolytic solution for driving an aluminum electrolytic capacitor as described in .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62138780A JPH0754790B2 (en) | 1987-06-02 | 1987-06-02 | Electrolytic solution for driving aluminum electrolytic capacitors |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62138780A JPH0754790B2 (en) | 1987-06-02 | 1987-06-02 | Electrolytic solution for driving aluminum electrolytic capacitors |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63302514A true JPS63302514A (en) | 1988-12-09 |
| JPH0754790B2 JPH0754790B2 (en) | 1995-06-07 |
Family
ID=15230028
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62138780A Expired - Fee Related JPH0754790B2 (en) | 1987-06-02 | 1987-06-02 | Electrolytic solution for driving aluminum electrolytic capacitors |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0754790B2 (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63261822A (en) * | 1987-04-20 | 1988-10-28 | 松下電器産業株式会社 | Electrolyte for driving electrolytic capacitor |
| JPS63261820A (en) * | 1987-04-20 | 1988-10-28 | 松下電器産業株式会社 | Electrolyte for driving electrolytic capacitor |
-
1987
- 1987-06-02 JP JP62138780A patent/JPH0754790B2/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63261822A (en) * | 1987-04-20 | 1988-10-28 | 松下電器産業株式会社 | Electrolyte for driving electrolytic capacitor |
| JPS63261820A (en) * | 1987-04-20 | 1988-10-28 | 松下電器産業株式会社 | Electrolyte for driving electrolytic capacitor |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0754790B2 (en) | 1995-06-07 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| LAPS | Cancellation because of no payment of annual fees |