DE974227C - Process for the production of electrolytes for electrolytic capacitors - Google Patents
Process for the production of electrolytes for electrolytic capacitorsInfo
- Publication number
- DE974227C DE974227C DEC2104A DEC0002104A DE974227C DE 974227 C DE974227 C DE 974227C DE C2104 A DEC2104 A DE C2104A DE C0002104 A DEC0002104 A DE C0002104A DE 974227 C DE974227 C DE 974227C
- Authority
- DE
- Germany
- Prior art keywords
- electrolytes
- electrolytic capacitors
- ethylene glycol
- production
- weight
- 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 15
- 239000003990 capacitor Substances 0.000 title claims description 9
- 238000004519 manufacturing process Methods 0.000 title claims description 4
- 238000000034 method Methods 0.000 title claims description 4
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims description 42
- 239000000203 mixture Substances 0.000 claims description 8
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims description 6
- 238000010438 heat treatment Methods 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
- 150000001346 alkyl aryl ethers Chemical class 0.000 claims description 2
- 239000007788 liquid Substances 0.000 claims description 2
- 229920000151 polyglycol Polymers 0.000 claims description 2
- 239000010695 polyglycol Substances 0.000 claims description 2
- 229910021529 ammonia Inorganic materials 0.000 claims 1
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 6
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 description 4
- MTHSVFCYNBDYFN-UHFFFAOYSA-N diethylene glycol Chemical compound OCCOCCO MTHSVFCYNBDYFN-UHFFFAOYSA-N 0.000 description 4
- 235000011187 glycerol Nutrition 0.000 description 3
- XXJWXESWEXIICW-UHFFFAOYSA-N diethylene glycol monoethyl ether Chemical compound CCOCCOCCO XXJWXESWEXIICW-UHFFFAOYSA-N 0.000 description 2
- 229940075557 diethylene glycol monoethyl ether Drugs 0.000 description 2
- 238000005470 impregnation Methods 0.000 description 2
- ZIBGPFATKBEMQZ-UHFFFAOYSA-N triethylene glycol Chemical compound OCCOCCOCCO ZIBGPFATKBEMQZ-UHFFFAOYSA-N 0.000 description 2
- DURPTKYDGMDSBL-UHFFFAOYSA-N 1-butoxybutane Chemical class CCCCOCCCC DURPTKYDGMDSBL-UHFFFAOYSA-N 0.000 description 1
- UWHCKJMYHZGTIT-UHFFFAOYSA-N Tetraethylene glycol, Natural products OCCOCCOCCOCCO UWHCKJMYHZGTIT-UHFFFAOYSA-N 0.000 description 1
- 150000005215 alkyl ethers Chemical class 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 229940028356 diethylene glycol monobutyl ether Drugs 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 1
- JCGNDDUYTRNOFT-UHFFFAOYSA-N oxolane-2,4-dione Chemical compound O=C1COC(=O)C1 JCGNDDUYTRNOFT-UHFFFAOYSA-N 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000004804 winding 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)
- Secondary Cells (AREA)
Description
Verfahren zur Herstellung von Elektrolyten für Elektrolytkondensatoren Es ist bekannt, Elektrolyte für Elektrolytkondensatoren aus Glyzerin, Borsäure und wäßrigem Ammoniak durch Erhitzen herzustellen. Zur Herstellung von Elektrolytkondensatoren werden Papier- bzw. Gewebestreifen entweder mit den Elektrolyten bestrichen und mit vorbehandelten Aluminiumfolien zu Wickeln aufgerollt, oder aus diesen Materialien hergestellte Wickel werden durch Eintauchen in den auf höhere Temperaturen (etwa 7o° C) erhitzten Elektrolyten imprägniert. An Stelle von Glyzerin kann man auch Äthylenglykol, Diäthylenglykol, Triäthylenglykol oder deren Alkyläther verwenden. Die mit diesen Verbindungen hergestellten Elektrolytkondensatoren arbeiten auch bei tiefen Temperaturen einwandfrei, während dies bei den unter Verwendung von Glyzerin hergestellten Elektrolytkondensatoren nicht der Fall ist. Indessen weisen die unter Verwendung von Äthylenglykol hergestellten Elektrolyte den großen Nachteil auf, daß sie bei den Verarbeitungstemperaturen in kürzester Zeit so viskos werden, daß die Wickel nach erfolgter Imprägnierung aus den Bädern gewaltsam herausgeholt und dabei häufig beschädigt werden. Infolgedessen wurden äthylenglykolhaltige Elektrolyte nach kurzer Zeit verworfen. Außerdem sind unter Verwendung von Athylenglykol hergestellte Elektrolyte weitgehend witterungsabhängig; so begünstigt z. B. feuchtwarme Witterung das Viskoserwerden der Imprägnierbäder in erheblichem Maße.Process for the production of electrolytes for electrolytic capacitors It is known to electrolytes for electrolytic capacitors made from glycerine, boric acid and to produce aqueous ammonia by heating. For the production of electrolytic capacitors paper or fabric strips are either coated with the electrolyte and rolled up with pretreated aluminum foils or made of these materials produced wraps are immersed in the at higher temperatures (approx 70 ° C) heated electrolyte impregnated. You can also use glycerine instead Use ethylene glycol, diethylene glycol, triethylene glycol or their alkyl ethers. The electrolytic capacitors made with these compounds will also work works perfectly at low temperatures, while this is done with those using glycerine manufactured electrolytic capacitors is not the case. Meanwhile, they teach Using electrolytes made from ethylene glycol has the major disadvantage that they become so viscous at the processing temperatures in a very short time that after the impregnation, the wraps were forcibly removed from the baths and are often damaged in the process. As a result, electrolytes containing ethylene glycol became discarded after a short time. They are also made using ethylene glycol Electrolytes largely dependent on weather conditions; so favors z. B. humid weather the impregnation baths become viscous to a considerable extent.
Es wurde nun gefunden, daß äthylenglykolhaltige Elektrolyte für Elektrolytkondensatoren die erwähnten Nachteile nicht besitzen, wenn der Mischung vor dem Erhitzen 4 bis 50/, Monoalkylather flüssiger Polyglykole, beispielsweise Methyl-, Äthyl-, Butyläther des Di-, Tri- oder Tetraäthylenglykols, zugesetzt werden. Durch diesen an und für sich geringen Zusatz dieser Stoffe wird erreicht, daB die Viskosität der Elektrolyte ganz erheblich verringert wird, ohne daB die elektrischen Eigenschaften beeinträchtigt werden. Werden derartige Gemische zur Herstellung von Elektrolytkondensatoren durch Tauchen von Wickeln verwendet, so bleiben diese Mischungen bedeutend längere Zeit als die lediglich unter Verwendung von Äthylenglykol hergestellten Mischungen gebrauchsfähig, auch sind sie in feuchtwarmer Witterung wesentlich beständiger. Infolge der geringeren Viskositäten kann die Imprägnierung der Wickel in bedeutend kürzerer Zeit durchgeführt werden als in den unter Verwendung von Äthylenglykol allein hergestellten Bädern.It has now been found that electrolytes containing ethylene glycol for electrolytic capacitors do not have the disadvantages mentioned if 4 to 50 monoalkyl ethers of liquid polyglycols, for example methyl, ethyl, butyl ethers of di-, tri- or tetraethylene glycol, are added to the mixture before heating . This, in and of itself, small addition of these substances ensures that the viscosity of the electrolytes is reduced quite considerably without the electrical properties being impaired. If such mixtures are used to produce electrolytic capacitors by dipping coils, then these mixtures remain usable for a significantly longer time than the mixtures produced solely using ethylene glycol, and they are also much more stable in warm, humid weather. As a result of the lower viscosities, the winding can be impregnated in a significantly shorter time than in the baths produced using ethylene glycol alone.
Beispiel i Eine Mischung aus 96 Gewichtsteilen Äthylenglykol und 4 Gewichtsteilen Diäthylenglykolmonoäthyläther wird mit zig Gewichtsteilen Borsäure und 39 Gewichtsteilen 25°/oigem wäBrigem Ammoniak auf 130°C erhitzt. Der erhaltene Elektrolyt besitzt nach 60stündigem Erhitzen auf 70°C eine Viskosität, die 23 °/o der Viskosität beträgt, die einem nur mit Äthylenglykol in analoger Weise hergestellten und behandelten Elektrolyten zukommt.Example i A mixture of 96 parts by weight of ethylene glycol and 4 Parts by weight of diethylene glycol monoethyl ether are mixed with tens of parts by weight of boric acid and 39 parts by weight of 25% aqueous ammonia heated to 130 ° C. The received After 60 hours of heating at 70 ° C., the electrolyte has a viscosity of 23% the viscosity is that produced in an analogous manner only with ethylene glycol and treated electrolytes.
Beispiel 2 Eine Mischung aus 95 Gewichtsteilen Äthylenglykol und 5 Gewichtsteilen Diäthylenglykolmonoäthyläther wird mit iig Gewichtsteilen Borsäure und 39 Gewichtsteilen 25°/oigem wäBrigem Ammoniak auf 130°C erhitzt. Nach 60stündiger Benutzung bei 70°C beträgt die Viskosität etwa 15 °/o der Viskosität eines in analoger Weise unter Verwendung von Äthylenglykol allein hergestellten und behandelten Elektrolyten.Example 2 A mixture of 95 parts by weight of ethylene glycol and 5 parts by weight of diethylene glycol monoethyl ether is heated to 130 ° C. with iig parts by weight of boric acid and 39 parts by weight of 25% aqueous ammonia. After 60 hours of use at 70 ° C., the viscosity is about 15% of the viscosity of an electrolyte prepared and treated in an analogous manner using ethylene glycol alone.
Beispiel 3 Eine Mischung aus 95 Gewichtsteilen Äthylenglykol und 5 Gewichtsteilen Diäthylenglykolmonobutyläther wird mit 1i9 Gewichtsteilen Borsäure und 39 Gewichtsteilen 25°/oigem wäBrigem Ammoniak auf i3o°C erhitzt. Die Viskositätszunahme beträgt nach 60stündigem Erhitzen bei 7o° C nur 47 °/o der Viskosisität des in analoger Weise unter Verwendung von Äthylenglykol allein hergestellten Elektrolyten.Example 3 A mixture of 95 parts by weight of ethylene glycol and 5 Parts by weight of diethylene glycol monobutyl ether are mixed with 19 parts by weight of boric acid and 39 parts by weight of 25% aqueous ammonia heated to 130 ° C. The increase in viscosity after 60 hours of heating at 70 ° C. is only 47% of the viscosity of the analog Way, electrolytes made using ethylene glycol alone.
Die in den vorstehenden Beispielen angegebenen günstigen Viskositäten bleiben bestehen, auch wenn unter extremen Bedingungen beispielsweise in wasserdampfgesättigter Atmosphäre gearbeitet wird.The favorable viscosities given in the preceding examples remain in place, even if under extreme conditions, for example in water vapor-saturated Atmosphere is being worked on.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEC2104A DE974227C (en) | 1950-09-07 | 1950-09-07 | Process for the production of electrolytes for electrolytic capacitors |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEC2104A DE974227C (en) | 1950-09-07 | 1950-09-07 | Process for the production of electrolytes for electrolytic capacitors |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE974227C true DE974227C (en) | 1960-10-20 |
Family
ID=7012800
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DEC2104A Expired DE974227C (en) | 1950-09-07 | 1950-09-07 | Process for the production of electrolytes for electrolytic capacitors |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE974227C (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1959130A (en) * | 1931-08-22 | 1934-05-15 | Benwood Linze Company | Condenser |
| US2075351A (en) * | 1934-11-27 | 1937-03-30 | Magnavox Co | Electrolytic condenser |
| GB504281A (en) * | 1937-10-19 | 1939-04-19 | British Electrolytic Condenser | Improvements in electrolytic cells |
| GB504280A (en) * | 1937-10-19 | 1939-04-19 | British Electrolytic Condenser | Improvements in electrolytic cells |
| US2253507A (en) * | 1940-02-01 | 1941-08-26 | Gen Electric | Electrolytic capacitor and impregnant therefor |
| US2253506A (en) * | 1938-12-31 | 1941-08-26 | Gen Electric | Electrolyte composition |
| FR870541A (en) * | 1940-05-27 | 1942-03-13 | Fides | electrolyte, especially for electrolytic capacitors |
| CH225451A (en) * | 1940-05-27 | 1943-01-31 | Fides Gmbh | Electrolytic capacitor. |
| CH236480A (en) * | 1942-02-18 | 1945-02-15 | Sueddeutsche Apparate Fabrik G | Electrolytic capacitor. |
-
1950
- 1950-09-07 DE DEC2104A patent/DE974227C/en not_active Expired
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1959130A (en) * | 1931-08-22 | 1934-05-15 | Benwood Linze Company | Condenser |
| US2075351A (en) * | 1934-11-27 | 1937-03-30 | Magnavox Co | Electrolytic condenser |
| GB504281A (en) * | 1937-10-19 | 1939-04-19 | British Electrolytic Condenser | Improvements in electrolytic cells |
| GB504280A (en) * | 1937-10-19 | 1939-04-19 | British Electrolytic Condenser | Improvements in electrolytic cells |
| US2253506A (en) * | 1938-12-31 | 1941-08-26 | Gen Electric | Electrolyte composition |
| US2253507A (en) * | 1940-02-01 | 1941-08-26 | Gen Electric | Electrolytic capacitor and impregnant therefor |
| FR870541A (en) * | 1940-05-27 | 1942-03-13 | Fides | electrolyte, especially for electrolytic capacitors |
| CH225451A (en) * | 1940-05-27 | 1943-01-31 | Fides Gmbh | Electrolytic capacitor. |
| CH236480A (en) * | 1942-02-18 | 1945-02-15 | Sueddeutsche Apparate Fabrik G | Electrolytic capacitor. |
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