AT139595B - Electrolyte, in particular for electrolytic capacitors. - Google Patents
Electrolyte, in particular for electrolytic capacitors.Info
- Publication number
- AT139595B AT139595B AT139595DA AT139595B AT 139595 B AT139595 B AT 139595B AT 139595D A AT139595D A AT 139595DA AT 139595 B AT139595 B AT 139595B
- Authority
- AT
- Austria
- Prior art keywords
- electrolyte
- electrolytic capacitors
- boric acid
- capacitors
- desc
- Prior art date
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- Medicinal Preparation (AREA)
Description
<Desc/Clms Page number 1>
Elektrolyt, insbesondere für elektrolytische Kondensatoren.
Elektrolytische Kondensatoren enthalten als Hauptbestandteil eine Elektrode, die meistens aus Aluminium besteht, formiert ist und in einen Elektrolyten eingetaucht wird. Der Elektrolyt besteht in vielen Fällen aus Salzen der Borsäure, z. B. Ammoniumborat oder Borax im Gemisch mit Borsäure.
Bei elektrolytischen Kondensatoren findet nun aber stets ein Angriff des Elektrolyten auf die Elektrode und dadurch ein allmählicher Abbau der Formierungsschicht statt.
Nun ist es an sich bekannt, dass der Angriff von Borsäure und Borax auf Aluminium durch Zusatz von Schellack oder Wachsen stark herabgemindert wird, und man hat deshalb auch schon vorgeschlagen, dem Elektrolyten für elektrolytische Kondensatoren Paraffin oder ähnliche Stoffe zuzumischen. Die Verwendung derartiger Kohlenwasserstoffe hat aber den Nachteil, dass sie mit dem Elektrolyten Emulsionen bilden, deren Erhaltung während des Betriebes der Kondensatoren sehr schwierig ist.
Dieser Übelstand wird erfindungsgemäss dadurch vermieden, dass man einen Elektrolyten verwendet, der Schellack oder biologische Wachse enthält. Dabei sind unter biologischen Wachsen solche zu verstehen, die unmittelbar tierischen oder pflanzlichen Ursprungs sind. Diese Stoffe haben den Vorteil, dass sie sich in dem borsauren Elektrolyten leicht lösen. Es hat sich gezeigt, dass bei Ausführungen gemäss der Erfindung bedeutend kleinere Restströme auftreten und auch der Anfangsstrom nach Ruhepausen kleinere Werte annimmt als ohne solche Zusätze.
**WARNUNG** Ende DESC Feld kannt Anfang CLMS uberlappen**.
<Desc / Clms Page number 1>
Electrolyte, in particular for electrolytic capacitors.
The main component of electrolytic capacitors is an electrode, which usually consists of aluminum, is formed and immersed in an electrolyte. In many cases the electrolyte consists of salts of boric acid, e.g. B. ammonium borate or borax mixed with boric acid.
With electrolytic capacitors, however, the electrolyte always attacks the electrode and, as a result, the formation layer gradually degrades.
It is now known that the attack by boric acid and borax on aluminum is greatly reduced by adding shellac or wax, and it has therefore already been suggested that paraffin or similar substances be added to the electrolyte for electrolytic capacitors. However, the use of such hydrocarbons has the disadvantage that they form emulsions with the electrolyte, which are very difficult to maintain during operation of the capacitors.
According to the invention, this disadvantage is avoided by using an electrolyte which contains shellac or biological waxes. Here, biological waxes are to be understood as meaning those that are of direct animal or vegetable origin. These substances have the advantage that they easily dissolve in the boric acid electrolyte. It has been shown that with embodiments according to the invention, significantly smaller residual currents occur and that the initial current also assumes smaller values after pauses than without such additives.
** WARNING ** End of DESC field may overlap beginning of CLMS **.
Claims (1)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE139595X | 1932-01-27 |
Publications (1)
Publication Number | Publication Date |
---|---|
AT139595B true AT139595B (en) | 1934-11-26 |
Family
ID=5667847
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
AT139595D AT139595B (en) | 1932-01-27 | 1932-08-25 | Electrolyte, in particular for electrolytic capacitors. |
Country Status (1)
Country | Link |
---|---|
AT (1) | AT139595B (en) |
-
1932
- 1932-08-25 AT AT139595D patent/AT139595B/en active
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