DE765704C - Electrolyte for electrolytic capacitors - Google Patents
Electrolyte for electrolytic capacitorsInfo
- Publication number
- DE765704C DE765704C DEN43548D DEN0043548D DE765704C DE 765704 C DE765704 C DE 765704C DE N43548 D DEN43548 D DE N43548D DE N0043548 D DEN0043548 D DE N0043548D DE 765704 C DE765704 C DE 765704C
- Authority
- DE
- Germany
- Prior art keywords
- boric acid
- electrolyte
- electrolytic capacitors
- glycol
- acid ester
- 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 5
- 239000003792 electrolyte Substances 0.000 title description 9
- LYCAIKOWRPUZTN-UHFFFAOYSA-N ethylene glycol Natural products OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims description 13
- 239000004327 boric acid Substances 0.000 claims description 11
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 claims description 8
- -1 glycol boric acid ester Chemical class 0.000 claims description 6
- 239000011874 heated mixture Substances 0.000 claims description 2
- 239000004615 ingredient Substances 0.000 claims description 2
- 229910000679 solder Inorganic materials 0.000 claims description 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 5
- KGBXLFKZBHKPEV-UHFFFAOYSA-N boric acid Chemical compound OB(O)O KGBXLFKZBHKPEV-UHFFFAOYSA-N 0.000 description 5
- 150000002148 esters Chemical class 0.000 description 4
- 239000000470 constituent Substances 0.000 description 3
- 239000002904 solvent Substances 0.000 description 3
- 229910021529 ammonia Inorganic materials 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000007858 starting material Substances 0.000 description 2
- NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonium chloride Substances [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 description 1
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 description 1
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- 235000011114 ammonium hydroxide Nutrition 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 239000000460 chlorine Substances 0.000 description 1
- 150000001805 chlorine compounds Chemical class 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000004821 distillation Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 150000003467 sulfuric acid derivatives Chemical class 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 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 Elektrolyte für Elektrolytkondensatoren der bekannten Art wurden bisher hergestellt unter Lösung eines Ionogens in Alkohol und Erhitzen dieses Gemisches auf Temperaturen, bei denen ein Teil der Bestandteile unter Esterbildung reagiert. Diese Elektrolyte zeigen je- doch verschiedene Nachteile. Zunächst ist man abhängig von der Reinheit der Ausgangsmaterialien, da darin enthaltene Verunreinigungen, wie vor allem Chloride, Sulfate od. dgl., auch in dem endgültigen Elektrolyt enthalten sind. Weiter ist der Wassergehalt und auch der prozentual veresterte Anteil des Elektrolyts nicht immer gleichmäßig, variiert aft in verhältnismäßig großen Grenzen, was durch den Einfluß der augenblicklich herrschenden Temperatur, Luftfeuchtigkeit usw. bedingt wird.Electrolyte for electrolytic capacitors Electrolytes for electrolytic capacitors of the known type have hitherto been produced by dissolving an ionogen in alcohol and heating this mixture to temperatures at which some of the constituents react with ester formation. These electrolytes show JE but various disadvantages. First of all, one is dependent on the purity of the starting materials, since impurities contained therein, such as, above all, chlorides, sulfates or the like, are also contained in the final electrolyte. Furthermore, the water content and also the percentage esterified portion of the electrolyte is not always uniform, varies within relatively large limits, which is caused by the influence of the currently prevailing temperature, humidity, etc.
Alle diese Schwierigkeiten werden vermieden, wenn der Elektrolyt, der aus der Lösung eines Ionogens in einem Glykolborsäureester besteht, gemäß der Erfindung als Lösungsmittel einen Glykolborsäureester von der Formel erhält, der aus einer erhitzten Mischung der Ausgangsbestandteile des Esters durch Abdestillieren hergestellt ist. Das Lösungsmittel, nämlich der Glykolborsäureester, wird vorteilhaft in der folgenden Weise gewonnen: Die Ausgangsbestandteile, nämlich Borsäure und Äthvlenglykol, «,erden in einem der Formel entsprechenden Mengenverhältnis gemischt und erhitzt. Der bei 295° C übergehende Ester wird aufgefangen. Dieser Ester ist bereits durch die Literatur bekannt. Diese Art der Herstellung de: Lösungsmittels in besonders hoher Reinheit ist nämlich leichter durchzuführen, als wenn man. von den Ausgangsbestandteilen ausgehend, diese in besonders hoher Reinheit zur Anwendung bringt. Die Reindarstellung von ÄtllclenglVkol ist nämlich sehr schwierig, da die chlorhaltigen Stoffe sich aus dem Glykol nur sehr schwer restlos entfernen lassen.All these difficulties are avoided if the electrolyte, which consists of the solution of an ionogen in a glycol boric acid ester, according to the invention, is a glycol boric acid ester of the formula as solvent obtained, which is made from a heated mixture of the starting constituents of the ester by distilling off. The solvent, namely the glycol boric acid ester, is advantageously obtained in the following way: The starting constituents, namely boric acid and ethylene glycol, are mixed and heated in a proportion corresponding to the formula. The ester which passes over at 295 ° C. is collected. This ester is already known from the literature. This type of production de: solvent in particularly high purity is namely easier to carry out than if one. starting from the starting ingredients, using them in a particularly high level of purity. The pure preparation of ÄtllclenglVkol is very difficult because the chlorine-containing substances can only be completely removed from the glycol with great difficulty.
Der geringe bei der Destillation verbleibende Rückstand enthält sämtliche Verunreinigungen der Borsäure und des Glvkols. die eventuell in den Ausgangsmaterialien vorkommen.The small residue remaining after the distillation contains all of them Boric acid and glycol contamination. which may be in the starting materials occurrence.
Dieser jetzt vollkommen reine Borsäureglykolester dient als Grundlage zur Herstellung für den Elektrolyt. Durch Zugabe einer Mischung von Borsäure und Ammoniak oder lediglich unter Zugabe von Borsäure und unter Einleitung von Ammoniakgas in der Wärme erhält man einen Elektrolot, der je nach Menge der zugefügten Borsäure mehr oder minder große Viskosität aufweist und dessen pH durch entsprechende Zugabe von Ammoniaklösung bzw. durch Einleiten von gasförmigem Ammoniak eingestellt werden kann.This now completely pure boric acid glycol ester serves as the basis for making for the electrolyte. By adding a mixture of boric acid and Ammonia or merely with the addition of boric acid and with the introduction of ammonia gas when heated, an electric solder is obtained, which depends on the amount of boric acid added has more or less high viscosity and its pH by appropriate addition of ammonia solution or by introducing gaseous ammonia can.
Kondensatoren, mit dem gekennzeichneten Elektrolyt imprägniert, weisen neben einer außerordentlichen Korrosionsfestigkeit ein sehr gutes `-erhalten. insbesondere bei hohen Temperaturen, und große Durchschlagsfestigkeit bei gutem Verlustwinkel auf.Capacitors impregnated with the marked electrolyte have In addition to an extraordinary resistance to corrosion, a very good `-received. in particular at high temperatures, and high dielectric strength with a good loss angle on.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEN43548D DE765704C (en) | 1939-08-27 | 1939-08-27 | Electrolyte for electrolytic capacitors |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEN43548D DE765704C (en) | 1939-08-27 | 1939-08-27 | Electrolyte for electrolytic capacitors |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE765704C true DE765704C (en) | 1953-02-23 |
Family
ID=7348740
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DEN43548D Expired DE765704C (en) | 1939-08-27 | 1939-08-27 | Electrolyte for electrolytic capacitors |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE765704C (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1891207A (en) * | 1930-06-19 | 1932-12-13 | Ruben Condenser Company | Electrolytic condenser |
| US1986779A (en) * | 1934-02-14 | 1935-01-01 | Ergon Res Lab Inc | Electrolytic condenser and electrolyte therefor |
| DE651665C (en) * | 1935-04-04 | 1937-10-18 | Richard Jahre | Process for the production of electrolytic cells, in particular of electrolytic capacitors |
| DE679013C (en) * | 1935-12-30 | 1939-07-28 | Radio Patents Corp | Process for the production of an electrolyte, in particular for electrolytic capacitors, and device for carrying out the process, as well as electrolyte |
-
1939
- 1939-08-27 DE DEN43548D patent/DE765704C/en not_active Expired
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1891207A (en) * | 1930-06-19 | 1932-12-13 | Ruben Condenser Company | Electrolytic condenser |
| US1986779A (en) * | 1934-02-14 | 1935-01-01 | Ergon Res Lab Inc | Electrolytic condenser and electrolyte therefor |
| DE651665C (en) * | 1935-04-04 | 1937-10-18 | Richard Jahre | Process for the production of electrolytic cells, in particular of electrolytic capacitors |
| DE679013C (en) * | 1935-12-30 | 1939-07-28 | Radio Patents Corp | Process for the production of an electrolyte, in particular for electrolytic capacitors, and device for carrying out the process, as well as electrolyte |
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