DE896228C - Process to increase the wettability of capacitor films - Google Patents
Process to increase the wettability of capacitor filmsInfo
- Publication number
- DE896228C DE896228C DES864A DES0000864A DE896228C DE 896228 C DE896228 C DE 896228C DE S864 A DES864 A DE S864A DE S0000864 A DES0000864 A DE S0000864A DE 896228 C DE896228 C DE 896228C
- Authority
- DE
- Germany
- Prior art keywords
- wettability
- increase
- capacitor
- foils
- electrolyte
- 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 8
- 238000000034 method Methods 0.000 title claims description 5
- 239000003792 electrolyte Substances 0.000 claims description 7
- 239000011888 foil Substances 0.000 claims description 6
- 239000000080 wetting agent Substances 0.000 claims description 5
- 238000004804 winding Methods 0.000 claims description 4
- NLHHRLWOUZZQLW-UHFFFAOYSA-N Acrylonitrile Chemical compound C=CC#N NLHHRLWOUZZQLW-UHFFFAOYSA-N 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 claims description 3
- 238000009736 wetting Methods 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 150000001298 alcohols Chemical class 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005470 impregnation Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 125000006850 spacer group Chemical group 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
- H01G9/04—Electrodes or formation of dielectric layers thereon
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Fixed Capacitors And Capacitor Manufacturing Machines (AREA)
Description
Verfahren zur Erhöhung der Benetzungsfähigkeit von Kondensatorfolien Um bei elektrischen Kondensatoren die Saugfähigkeit der Abstandhalter zu erhöhen, werden Netzmittel, z. B.. sulfurierte Alkohole, zugegeben. Diese Netzmittel führen, da sie hygroskopisch sind und schädliche Sulfationen enthalten, zur Verunreinigung des Elektrolyts und erhöhen somit die Korrosionsneigung. Vorliegende Erfindung beschäftigt sich demgegenüber mit der Aufgabe, die Benetzungsfähigkeit der Kondensatorfolien, insbesondere der aufgerauhten Folien., für den Elektrolyt zu erhöhen, also auf die Metalle so, einzuwirken, daß sich ihre Berührung mit dem Elektrolyt intensiver gestaltet. Diese Aufgabe wird erfindungsgemäß dadurch gelöst, daß der Kondensatorwickel mit Akrylnitril od. dgl. übergossen und nach einer anschließenden Wärmebehandlung mit dem Betriebselektrolyt getränkt wird.Process for increasing the wettability of capacitor foils In order to increase the absorbency of the spacers in electrical capacitors, are wetting agents, e.g. B. sulfurized alcohols, added. These wetting agents lead since they are hygroscopic and contain harmful sulfate ions, they become contaminants of the electrolyte and thus increase the tendency to corrosion. The present invention is concerned On the other hand, the task of improving the wetting ability of the capacitor foils, in particular the roughened foils., for the electrolyte to increase, so on the Metals act in such a way that their contact with the electrolyte is more intense. This object is achieved in that the capacitor winding with Acrylonitrile od. The like. Poured over and after a subsequent heat treatment with is soaked in the operating electrolyte.
Das erfindungsgemäße Verfahren kann z. B. so durchgeführt werden, daß die fertiggestellten Kondensatorwickel zunächst im kalten Zustand mit Akrylnitril als Netzmittel übergossen werden. Nach Abgießen des überschüssigen Netzmittels werden die Wickel etwa 2 Stunden einer Wärmebehandlung bei 8o bis 9o° C unterworfen. Offenbar erfolgt hierbei auf den Folien eine Schichtbildung aus polymeren Akrylverbindungen, welche das Herantreten des bei der anschließenden Tränkung zugeführten Elektrolyts fördern, und zwar wird die Benetzungsmöglichkeit so erleichtert, daß die Berührung des Elektrolyts auch mit aufgerauhten Folien erheblich intensiviert wird. Bei Anwerndbng dieses Verfahrens wurden Kapazitätserhöhungen um etwa z o °/o festgestellt.The inventive method can, for. B. be carried out in such a way that the completed capacitor winding is initially cold with acrylonitrile be doused as a wetting agent. After the excess wetting agent has been poured off the winding is subjected to a heat treatment at 8o to 9o ° C for about 2 hours. Apparently a layer of polymeric acrylic compounds is formed on the foils, which is the approach of the electrolyte supplied during the subsequent impregnation promote, namely the possibility of wetting is so facilitated that the contact of the electrolyte also with roughened Slides intensified considerably will. When this procedure was used, capacity increases of around z o ° / o were achieved established.
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DES864A DE896228C (en) | 1949-11-29 | 1949-11-29 | Process to increase the wettability of capacitor films |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DES864A DE896228C (en) | 1949-11-29 | 1949-11-29 | Process to increase the wettability of capacitor films |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE896228C true DE896228C (en) | 1953-11-09 |
Family
ID=7468932
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DES864A Expired DE896228C (en) | 1949-11-29 | 1949-11-29 | Process to increase the wettability of capacitor films |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE896228C (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE708355C (en) * | 1934-07-11 | 1941-07-18 | Siemens & Halske Akt Ges | Process for increasing the absorption capacity of spacers made of fibrous material for electrolytic capacitors |
-
1949
- 1949-11-29 DE DES864A patent/DE896228C/en not_active Expired
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE708355C (en) * | 1934-07-11 | 1941-07-18 | Siemens & Halske Akt Ges | Process for increasing the absorption capacity of spacers made of fibrous material for electrolytic capacitors |
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