DE966063C - Electrolyte for electrolytic capacitors - Google Patents
Electrolyte for electrolytic capacitorsInfo
- Publication number
- DE966063C DE966063C DEB9477D DEB0009477D DE966063C DE 966063 C DE966063 C DE 966063C DE B9477 D DEB9477 D DE B9477D DE B0009477 D DEB0009477 D DE B0009477D DE 966063 C DE966063 C DE 966063C
- Authority
- DE
- Germany
- Prior art keywords
- electrolyte
- parts
- electrolytic capacitors
- glycol
- boric acid
- 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
- 239000003990 capacitor Substances 0.000 title claims description 10
- 239000003792 electrolyte Substances 0.000 title claims description 8
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims description 8
- 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 claims description 4
- 239000004372 Polyvinyl alcohol Substances 0.000 claims description 4
- KGBXLFKZBHKPEV-UHFFFAOYSA-N boric acid Chemical compound OB(O)O KGBXLFKZBHKPEV-UHFFFAOYSA-N 0.000 claims description 4
- 239000004327 boric acid Substances 0.000 claims description 4
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 claims description 4
- 229920002451 polyvinyl alcohol Polymers 0.000 claims description 4
- QBUKAFSEUHGMMX-MTJSOVHGSA-N (5z)-5-[[3-(1-hydroxyethyl)thiophen-2-yl]methylidene]-10-methoxy-2,2,4-trimethyl-1h-chromeno[3,4-f]quinolin-9-ol Chemical group C1=CC=2NC(C)(C)C=C(C)C=2C2=C1C=1C(OC)=C(O)C=CC=1O\C2=C/C=1SC=CC=1C(C)O QBUKAFSEUHGMMX-MTJSOVHGSA-N 0.000 claims description 2
- 150000005846 sugar alcohols Polymers 0.000 claims description 2
- 230000007423 decrease Effects 0.000 description 1
- 230000002349 favourable effect Effects 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 Elektrolytkondensatoren Die Erfindung bezieht sich auf einen Elektrolyt für Elektrolytkondensatoren, der aus einem Glykol, einem weiteren mehrwertigen Alkohol, Borsäure und Ammoniumpentaborat zusammengesetzt ist. Es ist bekannt, daB die Kapazität derartiger Kondensatoren mit fallender Temperatur derart abnimmt, daB die Kondensatoren bei einer Temperatur von -4o° C nur noch die Hälfte der Kapazität haben, die sie bei Raumtemperatur von etwa 2o° C haben.Electrolyte for Electrolytic Capacitors The invention relates to to an electrolyte for electrolytic capacitors, which consists of one glycol and another polyhydric alcohol, boric acid and ammonium pentaborate is composed. It is known that the capacitance of such capacitors with falling temperature so decreases, so that the capacitors are only half at a temperature of -4o ° C have the capacity they have at room temperature of about 20 ° C.
Wesentlich günstigere Verhältnisse ergeben sich, wenn der Elektrolyt eines Elektrolytkondensators gemäß der Erfindung aus zoo Teilen Glykol, 2 Teilen Polyvinylalkohol, 2o Teilen Borsäure und 22 Teilen Ammoniumpentaborat besteht. Diese Zusammensetzung ergibt einen in elektrischer Hinsicht ausgezeichneten Elektrolyt, mit dem man bei Elektrolytkondensatoren eine Maximalspannung von etwa 520 Volt erreichen kann. Kondensatoren mit der erwähnten Zusammensetzung ihres Elektrolyts haben bei einer Temperatur von -4o° C noch go°/o der Kapazität, die sie bei -f- 2o° C haben. Wird aber bei der Zusammensetzung des Elektrolyts auf die Beimengung des Polyvinylalkohols verzichtet, so sinkt auch die Kapazität bei - q.0° C wieder auf nur 65 °; o desj enigen Werts, den der gleiche Kondensator bei +2o° C aufweist. Außerdem wurde gefunden, daß gerade durch den Zusatz des Polyvinylalkohols die Maximalspannung von 420 auf etwa 52o Volt, d. h. um etwa roo Volt, erhöht werden konnte.Much more favorable ratios result when the electrolyte of an electrolytic capacitor according to the invention consists of zoo parts of glycol, 2 parts of polyvinyl alcohol, 20 parts of boric acid and 22 parts of ammonium pentaborate. This composition results in an electrolyte which is excellent from an electrical point of view and with which a maximum voltage of about 520 volts can be achieved in electrolytic capacitors. Capacitors with the above-mentioned composition of their electrolyte have at a temperature of -4o ° C still about 20 ° / o of the capacity that they have at -f- 20 ° C. If, however, polyvinyl alcohol is not added to the composition of the electrolyte, then the capacity also drops again to only 65 ° at -q.0 ° C; o the value that the same capacitor has at + 20 ° C. It was also found that the addition of polyvinyl alcohol made it possible to increase the maximum voltage from 420 to about 520 volts, that is to say by about roo volts.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEB9477D DE966063C (en) | 1944-03-07 | 1944-03-07 | Electrolyte for electrolytic capacitors |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEB9477D DE966063C (en) | 1944-03-07 | 1944-03-07 | Electrolyte for electrolytic capacitors |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE966063C true DE966063C (en) | 1957-07-04 |
Family
ID=6956361
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DEB9477D Expired DE966063C (en) | 1944-03-07 | 1944-03-07 | Electrolyte for electrolytic capacitors |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE966063C (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE974880C (en) * | 1949-09-14 | 1961-05-25 | Siemens Ag | Method of manufacturing electrolytic capacitors |
| DE1115835B (en) * | 1957-04-24 | 1961-10-26 | Gen Electric | Method of manufacturing an electrolytic capacitor |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1815768A (en) * | 1930-12-09 | 1931-07-21 | Aerovox Wireless Corp | Electrolyte |
| US2021455A (en) * | 1933-05-09 | 1935-11-19 | Ergon Res Lab Inc | Electrolytic condenser |
| US2052575A (en) * | 1934-02-14 | 1936-09-01 | Magnavox Co | Method of forming electrodes for electrolytic condensers |
| GB475757A (en) * | 1936-01-07 | 1937-11-25 | Mallory Patents Holding Compan | Improvements in and relating to electrolytic condensers and electrolytes therefor |
| CH225446A (en) * | 1940-05-27 | 1943-01-31 | Fides Gmbh | Electrolytic capacitor. |
-
1944
- 1944-03-07 DE DEB9477D patent/DE966063C/en not_active Expired
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1815768A (en) * | 1930-12-09 | 1931-07-21 | Aerovox Wireless Corp | Electrolyte |
| US2021455A (en) * | 1933-05-09 | 1935-11-19 | Ergon Res Lab Inc | Electrolytic condenser |
| US2052575A (en) * | 1934-02-14 | 1936-09-01 | Magnavox Co | Method of forming electrodes for electrolytic condensers |
| GB475757A (en) * | 1936-01-07 | 1937-11-25 | Mallory Patents Holding Compan | Improvements in and relating to electrolytic condensers and electrolytes therefor |
| CH225446A (en) * | 1940-05-27 | 1943-01-31 | Fides Gmbh | Electrolytic capacitor. |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE974880C (en) * | 1949-09-14 | 1961-05-25 | Siemens Ag | Method of manufacturing electrolytic capacitors |
| DE1115835B (en) * | 1957-04-24 | 1961-10-26 | Gen Electric | Method of manufacturing an electrolytic capacitor |
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