JPH04199606A - Electrolyte for driving of aluminum electrolytic capacitor - Google Patents
Electrolyte for driving of aluminum electrolytic capacitorInfo
- Publication number
- JPH04199606A JPH04199606A JP32605890A JP32605890A JPH04199606A JP H04199606 A JPH04199606 A JP H04199606A JP 32605890 A JP32605890 A JP 32605890A JP 32605890 A JP32605890 A JP 32605890A JP H04199606 A JPH04199606 A JP H04199606A
- Authority
- JP
- Japan
- Prior art keywords
- solvent
- ethylene glycol
- electrolytic capacitor
- electrolyte
- 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.)
- Pending
Links
- 239000003990 capacitor Substances 0.000 title claims abstract description 12
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title claims description 7
- 229910052782 aluminium Inorganic materials 0.000 title claims description 7
- 239000003792 electrolyte Substances 0.000 title abstract description 3
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims abstract description 24
- 239000002904 solvent Substances 0.000 claims abstract description 12
- 239000008151 electrolyte solution Substances 0.000 claims description 11
- 239000000243 solution Substances 0.000 claims description 2
- 239000000654 additive Substances 0.000 claims 1
- XGLGESCVNJSAQY-UHFFFAOYSA-N 1-ethoxy-2-nitrobenzene Chemical compound CCOC1=CC=CC=C1[N+]([O-])=O XGLGESCVNJSAQY-UHFFFAOYSA-N 0.000 abstract description 3
- 239000002798 polar solvent Substances 0.000 abstract description 2
- 230000002950 deficient Effects 0.000 abstract 1
- 230000007797 corrosion Effects 0.000 description 6
- 238000005260 corrosion Methods 0.000 description 6
- 239000000203 mixture Substances 0.000 description 4
- YEJRWHAVMIAJKC-UHFFFAOYSA-N 4-Butyrolactone Chemical compound O=C1CCCO1 YEJRWHAVMIAJKC-UHFFFAOYSA-N 0.000 description 2
- OTLNPYWUJOZPPA-UHFFFAOYSA-N 4-nitrobenzoic acid Chemical compound OC(=O)C1=CC=C([N+]([O-])=O)C=C1 OTLNPYWUJOZPPA-UHFFFAOYSA-N 0.000 description 1
- BTJIUGUIPKRLHP-UHFFFAOYSA-N 4-nitrophenol Chemical compound OC1=CC=C([N+]([O-])=O)C=C1 BTJIUGUIPKRLHP-UHFFFAOYSA-N 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- XSTXAVWGXDQKEL-UHFFFAOYSA-N Trichloroethylene Chemical group ClC=C(Cl)Cl XSTXAVWGXDQKEL-UHFFFAOYSA-N 0.000 description 1
- 230000004913 activation Effects 0.000 description 1
- 239000000460 chlorine Substances 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- -1 chlorine ions Chemical class 0.000 description 1
- 239000012459 cleaning agent Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 150000008282 halocarbons Chemical class 0.000 description 1
- 150000007522 mineralic acids Chemical class 0.000 description 1
- 150000007524 organic acids Chemical class 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 230000001988 toxicity Effects 0.000 description 1
- 231100000419 toxicity Toxicity 0.000 description 1
- UBOXGVDOUJQMTN-UHFFFAOYSA-N trichloroethylene Natural products ClCC(Cl)Cl UBOXGVDOUJQMTN-UHFFFAOYSA-N 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 relates to an electrolytic solution for driving an aluminum electrolytic capacitor.
［従来の技術１及び［その解決課題］
アルミ電解コンデンサにおいては、電極がハロゲン化炭
化水素系の洗浄剤に起因する塩素イオンにより腐食を起
こし、短絡や水素ガス発生による防爆弁の作動等の故障
を生ずる場合があった。[Conventional technology 1 and problems to be solved] In aluminum electrolytic capacitors, the electrodes are corroded by chlorine ions caused by halogenated hydrocarbon cleaning agents, resulting in failures such as short circuits and activation of explosion-proof valves due to hydrogen gas generation. There were cases where this occurred.
このため従来パラニトロフェノールやパラニトロ安息香
酸等を添加した電解液が知られているが、その毒性や添
加による耐電圧の低下という欠点を有していた。For this reason, electrolytic solutions to which para-nitrophenol, para-nitrobenzoic acid, etc. are added have been known, but these have had drawbacks such as toxicity and a reduction in withstand voltage due to the addition.
本発明は、このような欠点を除去し、しかも優れた耐腐
食性を有する電解液を提供することを目的とするもので
ある。The object of the present invention is to eliminate such drawbacks and provide an electrolytic solution having excellent corrosion resistance.
［課題を解決するための手段］
本発明は、エチレングリコールを主とした溶媒に溶質を
溶解した溶液に、ニトロフェネトールを０．１ｗｔ％〜
１０ｗｔ％添加したことを特徴とするアルミ電解コンデ
ンサ駆動用電解液に係るものである。[Means for Solving the Problems] The present invention includes adding 0.1 wt% to 0.1 wt% of nitrophenethole to a solution in which a solute is dissolved in a solvent mainly containing ethylene glycol.
This relates to an electrolytic solution for driving an aluminum electrolytic capacitor, characterized in that 10 wt% of the above is added.
本発明で使用される溶質としては、当該分野で使用され
る各種の電解質について適用することができる。溶質の
例としては、有機酸もしくは無機酸又はそれらの塩類が
挙げられる。As the solute used in the present invention, various electrolytes used in the field can be used. Examples of solutes include organic or inorganic acids or salts thereof.
本発明の電解液における溶媒には、当該分野で使用され
る各種の溶媒を用いることができるが、エチレングリコ
ール単独、または、エチレングリコールを主とし、他の
溶媒を混合した形で使用される事が好ましい。他の溶媒
の例としては、ガンマ−ブチロラクトンなどの極性溶媒
を挙げることができる。Various solvents used in the field can be used as the solvent in the electrolytic solution of the present invention, but ethylene glycol alone or a mixture of ethylene glycol and other solvents may be used. is preferred. Examples of other solvents include polar solvents such as gamma-butyrolactone.
ニトロフェネトールの添加量は、０．１ｗｔ％〜１０ｗ
ｔ％の範囲である。ニトロフェネトールの添加量が、
０．１ｗｔ％未満では、耐腐食性効果が乏しくなり、ま
た、１０ｗｔ％を超えるときにも、耐腐食性効果が乏し
くなるし、経済的でない。The amount of nitrophenetol added is 0.1wt% to 10w
It is in the range of t%. The amount of nitrophenetol added is
If it is less than 0.1 wt%, the corrosion resistance effect will be poor, and if it exceeds 10 wt%, the corrosion resistance effect will be poor and it is not economical.
［実施例］ 以下本発明を実施例に基づいて説明する。[Example] The present invention will be explained below based on examples.
実施例１゜
第１表に本発明における電解液の組成を具体的に例示し
、従来の組成例と比較した。更に、第１表の組成に基づ
く、電解液を定格電圧４００ｖ、容量１４μＦの電解コ
ンデンサ素子に含浸し、封口した後、コンデンサを洗浄
剤トリクロロエチレン中で５分間超音波洗浄後、１０５
℃で負荷試験を行ない１０００時間後の腐食発生個数を
調べた。Example 1 Table 1 specifically illustrates the composition of the electrolytic solution in the present invention and compared it with a conventional composition example. Further, an electrolytic capacitor element having a rated voltage of 400 V and a capacity of 14 μF was impregnated with an electrolytic solution based on the composition shown in Table 1, and the capacitor was sealed, and then the capacitor was ultrasonically cleaned for 5 minutes in trichloroethylene, and then 105
A load test was conducted at ℃ and the number of corrosion occurrences after 1000 hours was determined.
その結果を第２表に示す。The results are shown in Table 2.
第１表
第２表
第２表から、従来例においては、試験試料１０個の全数
腐食が認められたが、本発明の電解液１こおいては、腐
食発生個数はＯであった。From Table 1 and Table 2, in the conventional example, corrosion was observed in all 10 test samples, but in the electrolytic solution 1 of the present invention, the number of corrosion occurrences was O.
［発明の効果］
以上の様に本発明によれば、不良発生のないアルミ電解
コンデンサ用の電解液を提供することができ、本発明の
電解液を使用することにより、信頼性の高いアルミ電解
コンデンサを提供できる。[Effects of the Invention] As described above, according to the present invention, it is possible to provide an electrolytic solution for aluminum electrolytic capacitors that does not cause defects, and by using the electrolytic solution of the present invention, highly reliable aluminum electrolytic capacitors can be produced. We can provide capacitors.
特許出願人 富山薬品工業株式会社 代理人弁理士 佐 藤 良 博Patent applicant: Toyama Pharmaceutical Co., Ltd. Representative Patent Attorney Yoshihiro Sato
Claims (1)
液に、ニトロフェネトールを０．１ｗｔ％〜１０ｗｔ％
添加したことを特徴とするアルミ電解コンデンサ駆動用
電解液。Add 0.1 wt% to 10 wt% of nitrophenethol to a solution of a solute dissolved in a solvent mainly composed of ethylene glycol.
An electrolytic solution for driving aluminum electrolytic capacitors characterized by the addition of additives.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP32605890A JPH04199606A (en) | 1990-11-29 | 1990-11-29 | Electrolyte for driving of aluminum electrolytic capacitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP32605890A JPH04199606A (en) | 1990-11-29 | 1990-11-29 | Electrolyte for driving of aluminum electrolytic capacitor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH04199606A true JPH04199606A (en) | 1992-07-20 |
Family
ID=18183640
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP32605890A Pending JPH04199606A (en) | 1990-11-29 | 1990-11-29 | Electrolyte for driving of aluminum electrolytic capacitor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH04199606A (en) |
-
1990
- 1990-11-29 JP JP32605890A patent/JPH04199606A/en active Pending
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