DE765110C - Electrolyte for electrolytic capacitors - Google Patents
Electrolyte for electrolytic capacitorsInfo
- Publication number
- DE765110C DE765110C DET42394D DET0042394D DE765110C DE 765110 C DE765110 C DE 765110C DE T42394 D DET42394 D DE T42394D DE T0042394 D DET0042394 D DE T0042394D DE 765110 C DE765110 C DE 765110C
- Authority
- DE
- Germany
- Prior art keywords
- electrolyte
- reaction
- acid
- electrolytic capacitors
- consists essentially
- 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.)
- Expired
Links
- 239000003792 electrolyte Substances 0.000 title claims description 18
- 239000003990 capacitor Substances 0.000 title claims description 6
- 238000006243 chemical reaction Methods 0.000 claims description 8
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 claims description 6
- KGBXLFKZBHKPEV-UHFFFAOYSA-N boric acid Chemical compound OB(O)O KGBXLFKZBHKPEV-UHFFFAOYSA-N 0.000 claims description 5
- 239000004327 boric acid Substances 0.000 claims description 5
- GSEJCLTVZPLZKY-UHFFFAOYSA-N Triethanolamine Chemical compound OCCN(CCO)CCO GSEJCLTVZPLZKY-UHFFFAOYSA-N 0.000 claims description 4
- 239000007795 chemical reaction product Substances 0.000 claims description 4
- 239000000047 product Substances 0.000 claims description 4
- 229910000147 aluminium phosphate Inorganic materials 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 2
- 150000007530 organic bases Chemical class 0.000 claims description 2
- 150000007519 polyprotic acids Polymers 0.000 claims description 2
- 150000002169 ethanolamines Chemical class 0.000 claims 1
- 238000000034 method Methods 0.000 claims 1
- 239000002253 acid Substances 0.000 description 10
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 6
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 5
- HZAXFHJVJLSVMW-UHFFFAOYSA-N 2-Aminoethan-1-ol Chemical compound NCCO HZAXFHJVJLSVMW-UHFFFAOYSA-N 0.000 description 4
- 150000003839 salts Chemical class 0.000 description 3
- -1 alkylamine salts Chemical class 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 235000011187 glycerol Nutrition 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
- 239000002904 solvent Substances 0.000 description 2
- BTBUEUYNUDRHOZ-UHFFFAOYSA-N Borate Chemical compound [O-]B([O-])[O-] BTBUEUYNUDRHOZ-UHFFFAOYSA-N 0.000 description 1
- LGRFSURHDFAFJT-UHFFFAOYSA-N Phthalic anhydride Natural products C1=CC=C2C(=O)OC(=O)C2=C1 LGRFSURHDFAFJT-UHFFFAOYSA-N 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 150000003973 alkyl amines Chemical class 0.000 description 1
- 125000003118 aryl group Chemical class 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- JHIWVOJDXOSYLW-UHFFFAOYSA-N butyl 2,2-difluorocyclopropane-1-carboxylate Chemical compound CCCCOC(=O)C1CC1(F)F JHIWVOJDXOSYLW-UHFFFAOYSA-N 0.000 description 1
- 239000007859 condensation product Substances 0.000 description 1
- HPNMFZURTQLUMO-UHFFFAOYSA-N diethylamine Chemical compound CCNCC HPNMFZURTQLUMO-UHFFFAOYSA-N 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003995 emulsifying agent Substances 0.000 description 1
- 230000032050 esterification Effects 0.000 description 1
- 238000005886 esterification reaction Methods 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 238000005187 foaming Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 229940049964 oleate Drugs 0.000 description 1
- ZQPPMHVWECSIRJ-KTKRTIGZSA-N oleic acid Chemical compound CCCCCCCC\C=C/CCCCCCCC(O)=O ZQPPMHVWECSIRJ-KTKRTIGZSA-N 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000004448 titration Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G9/00—Electrolytic capacitors, rectifiers, detectors, switching devices, light-sensitive or temperature-sensitive devices; Processes of their manufacture
- H01G9/004—Details
- H01G9/022—Electrolytes; Absorbents
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Electric Double-Layer Capacitors Or The Like (AREA)
Description
Elektrolyt für elektrolytische Kondensatoren Es sind elektrolytische Kondensatoren bekanntgeworden, die als Elektrolyt Alkylaminsalze, wie beispielsweiseDiäthylaminoleat oder -borat gelöst in Äthylenglykol enthalten. Diese Verbindungen haben &n Zweck, in erster Linie als Emulgator zu wirken. Bei derartigen Elektrolyten treten aber infolge des seifigen Charakters während der Formierung starke Schaumbildungen auf, die nachteilige Wirkungen haben.Electrolyte for electrolytic capacitors They are electrolytic Capacitors have become known as the electrolyte alkylamine salts, such as diethylamine oleate or borate dissolved in ethylene glycol. These connections have the purpose to act primarily as an emulsifier. However, such electrolytes occur due to its soapy character, strong foaming occurs during formation, which have adverse effects.
Es sind auch bereits elektrolytische Kondensatoren bekanntgeworden, die als Elektrolyt im wesentlichen Salze aus Aryl- oder Alkylaminen und schwachen Säuren enthalten. Diese Stoffe haben jedoch die unangenehme Eigenschaft, durch die Einwirkung der Luftfeuchtigkeit Wasser aufzunehmen und den Säurebestandteil zum Teil wieder auszuscheiden.Electrolytic capacitors have also become known, those used as electrolytes are essentially salts of aryl or alkyl amines and weak Contain acids. However, these substances have the unpleasant property that Exposure to the air humidity to absorb water and the acid component to Part to be eliminated again.
Die Erfindung bezieht sich auf einen Elektrolyten für elektrolytische Kondensatoren und , bezweckt, die oben angeführten t1belstände zu vermeiden. Erfindungsgemäß werden als Elektrolyte im wesentlichen esterartige Produkte verwendet, die aus organischen Basen vom Typ der Oxyal'kylamine durch Reaktion mit geeigneten anorganischen oder organischen ein- oder mehrbasischen Säuren gebildet werden. Das typischste Beispiel einer solchen Base, eines Oxyalkylamins z. B. ist das Triäthanolamin N-(CH2CH,OH)3. Aus wirtschaftlichen Erwägungen wird zweckmäßigerweise das technische Produkt verwendet. Dieses besteht aus einem Gemisch der drei äthanolamin-Homolog,n in dem Verhältnis 51/o 11ono-. 2o1/9 Di- und 75% Triätlianolamin. Diese: technische tlthanolamin ist eine farblose bis schwach gelblich gefärbte Flüssigkeit vom spezifischen Gewicht "etwa i,i2.f. bei 2o" C und einem Siedepunkt von a77° C bei 150 mm Hg. Die Konzentration wird durch Titration mit Normalsäure ermittelt und beträgt etwa 3o bis 35 0/ ö lierechn,#t als K O H. Dieser Konzentration entspricht dann auch die zur Umsetzung erforderliche Säuremenge. So erhält man beispielsweise einen brauchbaren Elektrolyt durch Umsetzung von ioo Gewichtsteilen technischen Triäthanolamins von 30°,'o mit 73 Gewichtsteilen Borsäure von 990/0.The invention relates to an electrolyte for electrolytic capacitors and aims to avoid the above-mentioned debris. According to the invention, the electrolytes used are essentially ester-like products which are formed from organic bases of the oxyalkylamine type by reaction with suitable inorganic or organic monobasic or polybasic acids. The most typical example of such a base, an oxyalkylamine e.g. B. the triethanolamine is N- (CH2CH, OH) 3. The technical product is expediently used for economic reasons. This consists of a mixture of the three ethanolamine homologues, n in the ratio 51 / o 11ono-. 2o1 / 9 di- and 75% trietlianolamine. This: technical ethanolamine is a colorless to pale yellowish colored liquid with a specific gravity of "about 1, i2.f. At 20" C and a boiling point of a77 ° C at 150 mm Hg. The concentration is determined by titration with normal acid and is approximately 3o to 35 0 / oil calculation, # t as KO H. This concentration then also corresponds to the amount of acid required for conversion. For example, a usable electrolyte is obtained by reacting 100 parts by weight of technical triethanolamine of 30 ° with 73 parts by weight of boric acid of 990/0.
Der Reaktionsverlauf -spielt sich normalerweise zunächst so ab, daß theoretisch i Mol eines der Äthanolaniine sich mit i 11o1 einer Säure. zu einem Salz verbindet.The course of the reaction normally takes place initially in such a way that theoretically i mole of one of the ethanolanines reacts with i 11o1 of an acid. to a Salt connects.
Wird nun die Reaktionstemperatur über ioo° C auf vorzugsweise 120 bis i5o° C erhöht, so läßt sich je nach Art der verwendeten Säure (zweckmäßigerweise z. B. Borsäure, Phosphorsäure, Phthalsäure oder Phthalsäureanhydrid) auch noch eine Umsetzung zwischen den Hydrozylgruppen der OZyalkylamine und der Säure herbeiführen. Diese Konzentration verläuft dann analog der zwischen Glycerin und Borsäure unter Bildung entsprechender Ester beispielsweise: worin O R den Säurerest der die Veresterung herbeiführenden Säure bezeichnet.If the reaction temperature is now increased above 100 ° C. to preferably 120 to 150 ° C., depending on the type of acid used (expediently, for example, boric acid, phosphoric acid, phthalic acid or phthalic anhydride), a reaction between the hydrocyl groups of the OZyalkylamines and bring about the acid. This concentration then proceeds analogously to that between glycerol and boric acid with the formation of corresponding esters, for example: where OR denotes the acid residue of the acid causing the esterification.
Hierbei wird Wasser frei, für dessen Abführung in geeigneter Weise Sorge getragen werden muß. Je nach der Art der verwendeten Säure und den Reaktionsbedingungen lassen sich sehr verschiedenartige Kondensationsprodukte erzielen. _1m besten eignen sich für Trockenelektroly tkondensatoren Reaktionsprodukte des Triäthanolamins mit Borsäure und Phosphorsäure, die in oben beschriebener Weise kondensiert ein klebriges, in Kälte zähflüssiges, glasklares Produkt ergeben.This releases water in a suitable manner for its removal Care must be taken. Depending on the type of acid used and the reaction conditions very different types of condensation products can be achieved. _1 best suited for dry electrolyte tcondensers reaction products of triethanolamine with Boric acid and phosphoric acid, which condenses in the manner described above a sticky, result in a viscous, crystal-clear product in the cold.
ach der Erfindung weisen also die Elektroly te neben den Salzen esterartige Verbindungen auf, die die Rolle eines Lösungsmittels übernehmen, so daß zusätzliche Lösungsmittel, wie Glycerin oder Äthylengly kol, nicht erforderlich sind.According to the invention, the electrolytes have ester-like salts in addition to the salts Compounds that take on the role of a solvent, so that additional Solvents such as glycerine or ethylene glycol are not required.
Claims (3)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DET42394D DE765110C (en) | 1933-04-12 | 1933-04-12 | Electrolyte for electrolytic capacitors |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DET42394D DE765110C (en) | 1933-04-12 | 1933-04-12 | Electrolyte for electrolytic capacitors |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE765110C true DE765110C (en) | 1952-09-29 |
Family
ID=7561265
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DET42394D Expired DE765110C (en) | 1933-04-12 | 1933-04-12 | Electrolyte for electrolytic capacitors |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE765110C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1170551B (en) * | 1958-11-07 | 1964-05-21 | Siemens S. Halske Aktiengesellschaft, Berlin und München | Electrolyte for electrolytic capacitors and process for its manufacture. |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1829178A (en) * | 1930-03-29 | 1931-10-27 | Nat Carbon Co Inc | Electrolyte for electrolytic condensers |
| GB387437A (en) * | 1930-11-08 | 1933-02-09 | Andre Albert Samuel | Process of manufacture of thin solid films, insulating and having a high dielectric strength |
-
1933
- 1933-04-12 DE DET42394D patent/DE765110C/en not_active Expired
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1829178A (en) * | 1930-03-29 | 1931-10-27 | Nat Carbon Co Inc | Electrolyte for electrolytic condensers |
| GB387437A (en) * | 1930-11-08 | 1933-02-09 | Andre Albert Samuel | Process of manufacture of thin solid films, insulating and having a high dielectric strength |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1170551B (en) * | 1958-11-07 | 1964-05-21 | Siemens S. Halske Aktiengesellschaft, Berlin und München | Electrolyte for electrolytic capacitors and process for its manufacture. |
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