JPH0355820A - Electrolyte for electrolytic capacitor - Google Patents
Electrolyte for electrolytic capacitorInfo
- Publication number
- JPH0355820A JPH0355820A JP19195189A JP19195189A JPH0355820A JP H0355820 A JPH0355820 A JP H0355820A JP 19195189 A JP19195189 A JP 19195189A JP 19195189 A JP19195189 A JP 19195189A JP H0355820 A JPH0355820 A JP H0355820A
- Authority
- JP
- Japan
- Prior art keywords
- nitroacetophenone
- solvent
- ammonium
- electrolyte
- added
- 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 23
- 239000003792 electrolyte Substances 0.000 title abstract description 7
- 239000002904 solvent Substances 0.000 claims abstract description 13
- JTWHVBNYYWFXSI-UHFFFAOYSA-N 2-nitro-1-phenylethanone Chemical compound [O-][N+](=O)CC(=O)C1=CC=CC=C1 JTWHVBNYYWFXSI-UHFFFAOYSA-N 0.000 claims abstract description 6
- 150000002334 glycols Chemical class 0.000 claims abstract description 4
- 150000002596 lactones Chemical class 0.000 claims abstract description 4
- 239000008151 electrolyte solution Substances 0.000 claims description 11
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 abstract description 31
- 238000004140 cleaning Methods 0.000 abstract description 9
- YEJRWHAVMIAJKC-UHFFFAOYSA-N 4-Butyrolactone Chemical compound O=C1CCCO1 YEJRWHAVMIAJKC-UHFFFAOYSA-N 0.000 abstract description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 7
- WPYMKLBDIGXBTP-UHFFFAOYSA-N benzoic acid Chemical compound OC(=O)C1=CC=CC=C1 WPYMKLBDIGXBTP-UHFFFAOYSA-N 0.000 abstract description 6
- ARKIFHPFTHVKDT-UHFFFAOYSA-N 1-(3-nitrophenyl)ethanone Chemical compound CC(=O)C1=CC=CC([N+]([O-])=O)=C1 ARKIFHPFTHVKDT-UHFFFAOYSA-N 0.000 abstract description 5
- 239000007788 liquid Substances 0.000 abstract description 5
- HPNMFZURTQLUMO-UHFFFAOYSA-N diethylamine Chemical compound CCNCC HPNMFZURTQLUMO-UHFFFAOYSA-N 0.000 abstract description 4
- 239000005711 Benzoic acid Substances 0.000 abstract description 3
- 235000010233 benzoic acid Nutrition 0.000 abstract description 3
- 230000006866 deterioration Effects 0.000 abstract description 3
- 150000008282 halocarbons Chemical group 0.000 abstract description 3
- SUGXZLKUDLDTKX-UHFFFAOYSA-N 1-(2-nitrophenyl)ethanone Chemical compound CC(=O)C1=CC=CC=C1[N+]([O-])=O SUGXZLKUDLDTKX-UHFFFAOYSA-N 0.000 abstract description 2
- CXMXRPHRNRROMY-UHFFFAOYSA-N sebacic acid Chemical compound OC(=O)CCCCCCCCC(O)=O CXMXRPHRNRROMY-UHFFFAOYSA-N 0.000 abstract description 2
- OWCLRJQYKBAMOL-UHFFFAOYSA-N 2-butyloctanedioic acid Chemical compound CCCCC(C(O)=O)CCCCCC(O)=O OWCLRJQYKBAMOL-UHFFFAOYSA-N 0.000 abstract 1
- YQYGPGKTNQNXMH-UHFFFAOYSA-N 4-nitroacetophenone Chemical compound CC(=O)C1=CC=C([N+]([O-])=O)C=C1 YQYGPGKTNQNXMH-UHFFFAOYSA-N 0.000 abstract 1
- AGLSQWBSHDEAHB-UHFFFAOYSA-N azane;boric acid Chemical compound N.OB(O)O AGLSQWBSHDEAHB-UHFFFAOYSA-N 0.000 abstract 1
- RATMLZHGSYTFBL-UHFFFAOYSA-N azanium;6-hydroxy-6-oxohexanoate Chemical compound N.OC(=O)CCCCC(O)=O RATMLZHGSYTFBL-UHFFFAOYSA-N 0.000 abstract 1
- 239000011888 foil Substances 0.000 description 11
- 230000007797 corrosion Effects 0.000 description 6
- 238000005260 corrosion Methods 0.000 description 6
- -1 trichloro-O trifluoroethane Chemical compound 0.000 description 4
- UOCLXMDMGBRAIB-UHFFFAOYSA-N 1,1,1-trichloroethane Chemical compound CC(Cl)(Cl)Cl UOCLXMDMGBRAIB-UHFFFAOYSA-N 0.000 description 3
- BTJIUGUIPKRLHP-UHFFFAOYSA-N 4-nitrophenol Chemical compound OC1=CC=C([N+]([O-])=O)C=C1 BTJIUGUIPKRLHP-UHFFFAOYSA-N 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 229910052736 halogen Inorganic materials 0.000 description 3
- 150000002367 halogens Chemical class 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- KWIPUXXIFQQMKN-UHFFFAOYSA-N 2-azaniumyl-3-(4-cyanophenyl)propanoate Chemical compound OC(=O)C(N)CC1=CC=C(C#N)C=C1 KWIPUXXIFQQMKN-UHFFFAOYSA-N 0.000 description 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 description 2
- 239000004215 Carbon black (E152) Substances 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- 229940090948 ammonium benzoate Drugs 0.000 description 2
- 229910052801 chlorine Inorganic materials 0.000 description 2
- 239000000460 chlorine Substances 0.000 description 2
- 229930195733 hydrocarbon Natural products 0.000 description 2
- 150000002430 hydrocarbons Chemical class 0.000 description 2
- AJDIZQLSFPQPEY-UHFFFAOYSA-N 1,1,2-Trichlorotrifluoroethane Chemical compound FC(F)(Cl)C(F)(Cl)Cl AJDIZQLSFPQPEY-UHFFFAOYSA-N 0.000 description 1
- 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
- OTRAYOBSWCVTIN-UHFFFAOYSA-N OB(O)O.OB(O)O.OB(O)O.OB(O)O.OB(O)O.N.N.N.N.N.N.N.N.N.N.N.N.N.N.N Chemical compound OB(O)O.OB(O)O.OB(O)O.OB(O)O.OB(O)O.N.N.N.N.N.N.N.N.N.N.N.N.N.N.N OTRAYOBSWCVTIN-UHFFFAOYSA-N 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- SPZBYSKKSSLUKN-UHFFFAOYSA-N diazanium;2-butyloctanedioate Chemical compound [NH4+].[NH4+].CCCCC(C([O-])=O)CCCCCC([O-])=O SPZBYSKKSSLUKN-UHFFFAOYSA-N 0.000 description 1
- 238000004043 dyeing Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 230000007062 hydrolysis Effects 0.000 description 1
- 238000006460 hydrolysis reaction Methods 0.000 description 1
- 238000005470 impregnation Methods 0.000 description 1
- 239000003112 inhibitor Substances 0.000 description 1
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 125000000449 nitro group Chemical group [O-][N+](*)=O 0.000 description 1
- 239000003002 pH adjusting agent Substances 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229910000679 solder Inorganic materials 0.000 description 1
- 238000010186 staining Methods 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
- 238000004506 ultrasonic cleaning Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Landscapes
- Fixed Capacitors And Capacitor Manufacturing Machines (AREA)
- Detergent Compositions (AREA)
Abstract
Description
【発明の詳細な説明】 （産業上の利用分野） 本発明は電解コンデンサ用電解液に関する。[Detailed description of the invention] (Industrial application field) The present invention relates to an electrolytic solution for electrolytic capacitors.
（従来の技術）
従来のアルミ電解コンデンサ等の電解コンデンサは、リ
ード線を接続した陽極箔とセパレータと陰極箔とを重ね
て巻回してコンデンサ素子を形戊し、これに電解液を含
浸してケースに収納し、このケースに蓋を取り付けて密
封した構造になっている。(Conventional technology) Conventional electrolytic capacitors such as aluminum electrolytic capacitors are made by winding an anode foil connected to a lead wire, a separator, and a cathode foil in layers to form a capacitor element, which is then impregnated with an electrolytic solution. It is stored in a case and sealed by attaching a lid to the case.
陽極箔と陰極箔とは、エッチングしたアルミニウム箔を
用い、特に前者は化成して誘電体酸化皮膜を形或してい
る。Etched aluminum foils are used for the anode foil and the cathode foil, and the former is particularly chemically converted to form a dielectric oxide film.
ところで、プリント基板に電解コンデンサ等の電子部品
を接続した場合、接続に用いられた半田に含まれるフラ
ンクスを除去するために、トリクロ口エタンやトリクロ
Ｏトリフロロエタン（フロン１１３）などのハロゲン系
炭化水素を用いて洗浄処理を行なっている。By the way, when connecting electronic components such as electrolytic capacitors to a printed circuit board, in order to remove the Franks contained in the solder used for connection, use a halogen-based carbonized product such as trichloroethane or trichloro-O trifluoroethane (Freon 113). Cleaning treatment is performed using hydrogen.
《発明が解決しようとする課題）
しかし、従来の構造の電解コンデンサでは、洗浄液がケ
ースと蓋の隙間から侵入する。そして洗浄液中に含まれ
る塩素イオンのために陽極箔や陰極箔が腐食し、電解コ
ンデンサの電気特性が著しく劣化しあるいはコンデンサ
としての機能が失われる等の不良が生じる。<<Problems to be Solved by the Invention>> However, in electrolytic capacitors having a conventional structure, cleaning liquid enters through the gap between the case and the lid. The anode foil and cathode foil corrode due to chlorine ions contained in the cleaning solution, resulting in defects such as significant deterioration of the electrical characteristics of the electrolytic capacitor or loss of its function as a capacitor.
この欠点を防止するために、蓋の外表面にエボキシ樹脂
を塗布する構造とした電解コンデンサもあるが、樹脂の
塗布及びその硬化処理が必要で、製造工程が複雑になり
、ＦＲ間がかかる欠点がある。In order to prevent this drawback, some electrolytic capacitors have a structure in which epoxy resin is applied to the outer surface of the lid, but this requires the application of the resin and its curing treatment, which complicates the manufacturing process and takes a long time between FRs. There is.
また、電解液に、Ｐ−ニトロフェノールやＰー二ト口安
息舎酸等の腐食防止剤を添加し、コンデンサ素子に含浸
した電解コンデンサもある。しかし、Ｐ−ニトロフェノ
ールは黄色で極めて強い染色性があり、ケースや作業者
の手等に付看して看色し、作業性に問題がある。そして
Ｐ−ニトロ安息香酸は、染色性の問題はないが少量を添
加した場合にも火花電圧が低下し、耐圧が低い欠点があ
る。There are also electrolytic capacitors in which a corrosion inhibitor such as P-nitrophenol or P-nitokuchibensha acid is added to the electrolytic solution and impregnated into the capacitor element. However, P-nitrophenol has an extremely strong yellow staining property, and the color must be attached to the case or the worker's hands, which poses a problem in workability. Although P-nitrobenzoic acid does not have any dyeing problems, it has the disadvantage that even if a small amount is added, the spark voltage decreases and the withstand voltage is low.
本発明は、以上の欠点を改良し、ハロゲン系炭化水素系
の洗浄液による洗浄によって発生する特性劣化等を防止
しつる電解コンデンサ用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 improve the above-mentioned drawbacks and to provide an electrolytic solution for a vertical electrolytic capacitor that prevents deterioration of characteristics caused by cleaning with a halogen-based hydrocarbon-based cleaning solution.
（課題を解決するための手段〉
本発明は、上記の目的を遅或するために、グリコール類
またはラクトン類を主溶媒とする電解コンデンサ用電解
液において、ニトロアセトフＩノンを添加することを特
徴とする電解コンデンサ用電解液を提供するものである
。(Means for Solving the Problems) In order to achieve the above object, the present invention is characterized in that nitroacetophone is added to an electrolytic solution for electrolytic capacitors whose main solvent is glycols or lactones. The present invention provides an electrolytic solution for electrolytic capacitors.
（作用）
電解液に添加したニトＯアセトフＩノンは、ハロゲン系
炭化水素の加水分解を抑制する作用がある。従って、電
解コンデンサのケース内にハロゲン系炭化水素の洗浄液
が侵入しても、塩素イオンの発生を低減でき、陽極箔や
陰極箔の腐食を低下できる。(Function) Nito-O-acetophinone added to the electrolyte has the effect of suppressing the hydrolysis of halogenated hydrocarbons. Therefore, even if a halogen-based hydrocarbon cleaning solution enters the case of the electrolytic capacitor, generation of chlorine ions can be reduced, and corrosion of the anode foil and cathode foil can be reduced.
（実施例） 以下、本発明を実施例に基づいて説明する。(Example) Hereinafter, the present invention will be explained based on examples.
電解液の溶媒にはエチレングリコールやγ−プチロラク
トンを用いる。Ethylene glycol or γ-butyrolactone is used as a solvent for the electrolyte.
溶媒をエチレングリコールとした場合には、これに溶質
としてアジビン酸アンモニウムや安息香酸アンモニウム
、１．６−デカンジカルボン酸アンモニウム、硼酸アン
モニウム等を溶かす。When ethylene glycol is used as a solvent, ammonium adibate, ammonium benzoate, ammonium 1,6-decanedicarboxylate, ammonium borate, etc. are dissolved in this as a solute.
また、ＷＪ媒にγ−プチロラクトンを用いる場合には、
さらにエチレングリコールと純水とを溶解して溶媒とす
る。そしてこの溶媒に、溶質として、安息香酸や１．６
−デカンジカルボン酸を溶解し、ＰＨ調整剤としてジエ
チルアミンを添加する。In addition, when using γ-butyrolactone as a WJ medium,
Furthermore, ethylene glycol and pure water are dissolved to form a solvent. In this solvent, benzoic acid and 1.6
-Dissolve decanedicarboxylic acid and add diethylamine as a pH adjuster.
そしてこの溶媒と溶質からなる液中にｍ−ニトロアセト
フェノンやＯ−ニトロアセトフェノン、？−ニトロアセ
トフエノンを添加する。And in this liquid consisting of solvent and solute, m-nitroacetophenone and O-nitroacetophenone? - Add nitroacetophenone.
次に、上記実施例の電解液を用いた電解コンデンサにつ
いてｉ．１．２−トリクロロー１．２．２トリクロロエ
タンまたはｉ．ｉ． １−トリクロロエタン中に浸漬し
、超音波洗浄を５分間行なった後、高温負荷試験《印加
電圧＝定格電圧、印加時間１０００ｈｒ）を行ない腐食
の発生状況を調べ，表１に示した。Next, regarding the electrolytic capacitor using the electrolytic solution of the above example, i. 1.2-trichloro1.2.2 trichloroethane or i. i. After immersing in 1-trichloroethane and performing ultrasonic cleaning for 5 minutes, a high temperature load test (applied voltage = rated voltage, application time 1000 hr) was conducted to investigate the occurrence of corrosion, and the results are shown in Table 1.
含浸に用いる電解液の主成分は次の通りとする。The main components of the electrolyte used for impregnation are as follows.
Ａ：
エチレングリコール ｇ■ｗｔ％アジビン酸アン
モニウム ８，２ｗｔ％耗 水
ｌ， ８ｗｔ％Ｂ ：
エチレングリコール ９２．４Ｗｔ％安息香酸ア
ンモニウム ５．４ｗｔ％純 水
２． ２ｗｔ％Ｃ ：
エチレングリコール
１．６−デカンジ
８８．
７１１％
カルボン酸アンモニウム １０．ＯＷｔ％耗 水
１，３ｗｔ％Ｄ ：
エチレングリコール
ｉｉ１！ｌ！
五硼酸アンモニウム
６７．
１ １ ．
２２．
０ｗｔ％
Ｑｗｔ％
０ｗｔ％
Ｅ ：
γ−プチＯラクトン ８１．ＯＷｔ％エチレング
リコール ７，７ｗｔ％安息香酸
６，２ｗｔ％ジエチルアミン ３
，７ｗｔ％耗 水
１． ４ｗｔ％Ｆ ：
γ−プチロラクトン ７９．０Ｗｔ％エチレング
リコール ６，Ｂｗｔ％１．６−デカンジカノ
レボンＭ８．ＯＷｔ％ジエチルアミン ５
，４ｗｔ％純 水
０，Ｂｗｔ％なお、実施例、従来例とも試料数は各々
２５個とする。また、洗浄液は、実施例１〜実施例４及
び従来例１〜従来例４が１．１．２−トリクロロ−１．
２．２トリクロロエタン、実施例５〜実施例６及び従来
例５〜従来例６が１．１．１−トリクロロエタンとする
。A: Ethylene glycol g■wt% Ammonium adibate 8.2wt% consumption Water
l, 8wt% B: Ethylene glycol 92.4wt% Ammonium benzoate 5.4wt% Pure water
2. 2wt%C: ethylene glycol 1.6-decanedi88. 711% Ammonium carboxylate 10. OWt% depletion Water 1.3wt%D: Ethylene glycol ii1! l! Ammonium pentaborate 67. 1 1. 22. 0wt% Qwt% 0wt% E: γ-Petit-O-lactone 81. OWt% ethylene glycol 7.7wt% benzoic acid
6,2wt% diethylamine 3
,7wt% water consumption
1. 4wt% F: γ-butyrolactone 79.0Wt% ethylene glycol 6, Bwt% 1.6-decane dicanolevon M8. OWt% diethylamine 5
,4wt% pure water
0, Bwt% The number of samples is 25 in both the example and the conventional example. Further, the cleaning liquid used in Examples 1 to 4 and Conventional Examples 1 to 4 was 1.1.2-trichloro-1.
2.2 trichloroethane, Examples 5 to 6 and Conventional Examples 5 to 6 are 1.1.1-trichloroethane.
表１
表１から明らかな通り、ｍ−ニトロアセトフエノンを添
加した実施例１〜実施例６は腐食が零であるのに対し、
従来例１〜従来例６は全数に腐食が発生した。Table 1 As is clear from Table 1, Examples 1 to 6 in which m-nitroacetophenone was added had zero corrosion, whereas
Corrosion occurred in all of Conventional Examples 1 to 6.
また、主或分がＣの電解液につき、ｍ−ニトロアセトフ
エノンの添加量を変えた場合の火花発生電圧を求めたと
ころ表２の通りの結果が得られた。In addition, when the spark generation voltage was determined when the amount of m-nitroacetophenone added was changed for an electrolytic solution whose main component was C, the results shown in Table 2 were obtained.
なお、８ｗｔ％以上は溶解しなかった。Note that 8 wt% or more was not dissolved.
表２から、ｍ−ニトロアセトフェノンを添加しても火花
発生電圧はほとんど変化しなかった。比較のために、同
じ主成分の電解液にＰ−ニトロフェノールとＰ−ニトロ
安息舎酸を１ｗｔ％添加すると、火花電圧は各々、４３
５Ｖ，４２０Ｖとなり、著しく低下した。From Table 2, the spark generation voltage hardly changed even when m-nitroacetophenone was added. For comparison, when 1 wt% of P-nitrophenol and P-nitrobensha acid were added to an electrolytic solution with the same main components, the spark voltage was 43%, respectively.
5V, 420V, which was a significant drop.
（発明の効果）
以上の通り、本発明の電解コンデンサ用電解液によれば
、ニトロアセトフエノンを添加することにより、ハロゲ
ン系炭化水素による洗浄処理を行なった場合に、電解コ
ンデンサの陽極箔や陰極箔の腐食を防止でき、その特性
を向上できる。また、ニトロアセトフエノンはニトロ基
を有しているために水素ガスの吸収効果があり、電解コ
ンデンサが内圧の上昇によりパンクする事故を低下でき
る。(Effects of the Invention) As described above, according to the electrolytic solution for electrolytic capacitors of the present invention, by adding nitroacetophenone, when cleaning treatment with halogenated hydrocarbon is performed, the anode foil of the electrolytic capacitor Corrosion of the cathode foil can be prevented and its characteristics can be improved. Furthermore, since nitroacetophenone has a nitro group, it has the effect of absorbing hydrogen gas, and can reduce the risk of punctures of electrolytic capacitors due to increases in internal pressure.
Claims (1)
解コンデンサ用電解液において、ニトロアセトフエノン
を添加することを特徴とする電解コンデンサ用電解液。(1) An electrolytic solution for electrolytic capacitors containing glycols or lactones as a main solvent, which is characterized in that nitroacetophenone is added thereto.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1191951A JPH088203B2 (en) | 1989-07-25 | 1989-07-25 | Electrolytic solution for electrolytic capacitors |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1191951A JPH088203B2 (en) | 1989-07-25 | 1989-07-25 | Electrolytic solution for electrolytic capacitors |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0355820A true JPH0355820A (en) | 1991-03-11 |
| JPH088203B2 JPH088203B2 (en) | 1996-01-29 |
Family
ID=16283169
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1191951A Expired - Lifetime JPH088203B2 (en) | 1989-07-25 | 1989-07-25 | Electrolytic solution for electrolytic capacitors |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH088203B2 (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0228916A (en) * | 1988-07-19 | 1990-01-31 | Nichicon Corp | Electrolyte for driving electrolytic capacitor |
-
1989
- 1989-07-25 JP JP1191951A patent/JPH088203B2/en not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0228916A (en) * | 1988-07-19 | 1990-01-31 | Nichicon Corp | Electrolyte for driving electrolytic capacitor |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH088203B2 (en) | 1996-01-29 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPH0355820A (en) | Electrolyte for electrolytic capacitor | |
| JPH03127812A (en) | Electrolyte for electrolytic capacitor | |
| JPH0410515A (en) | Electrolyte for electrolytic capacitor | |
| JPH03102811A (en) | Electrolyte for electrolytic capacitor | |
| JP2960153B2 (en) | Electrolyte for driving electrolytic capacitors | |
| JPH0318730B2 (en) | ||
| JPH01114018A (en) | Electrolyte for driving electrolytic capacitors | |
| JPH0658869B2 (en) | Electrolytic solution for driving electrolytic capacitors | |
| JPH0318727B2 (en) | ||
| JPH031817B2 (en) | ||
| JPH0399416A (en) | Electrolyte for electrolytic capacitor | |
| JPS59219920A (en) | Electrolyte for driving electrolytic condenser | |
| JP3612672B2 (en) | Electrolytic solution for electrolytic capacitor drive | |
| JPS622514A (en) | Electrolytic capacitor | |
| JPH06151251A (en) | Electrolyte for electrolytic capacitor | |
| JPH01173615A (en) | Electrolyte for electrolytic condenser | |
| JPH0318728B2 (en) | ||
| JP2697440B2 (en) | Electrolyte for electrolytic capacitors | |
| JPH0364905A (en) | Electrolyte for driving electrolytic capacitor | |
| JP3612671B2 (en) | Electrolytic solution for electrolytic capacitor drive | |
| JPS6182417A (en) | Electrolytic liquid for electrolytic capacitor | |
| JP4082405B2 (en) | Aluminum electrolytic capacitor | |
| JPS6310575B2 (en) | ||
| JPS59124117A (en) | Electrolyte for electrolytic condenser | |
| JPH05152165A (en) | Electrolyte for electrolytic capacitor |