DE691337C - Process for the production of an electrode with a porous surface for electrolytic capacitors - Google Patents
Process for the production of an electrode with a porous surface for electrolytic capacitorsInfo
- Publication number
- DE691337C DE691337C DE1933S0126436 DES0126436D DE691337C DE 691337 C DE691337 C DE 691337C DE 1933S0126436 DE1933S0126436 DE 1933S0126436 DE S0126436 D DES0126436 D DE S0126436D DE 691337 C DE691337 C DE 691337C
- Authority
- DE
- Germany
- Prior art keywords
- electrode
- production
- porous surface
- electrolytic capacitors
- capacitors
- 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
- 238000000034 method Methods 0.000 title claims description 5
- 238000004519 manufacturing process Methods 0.000 title claims description 4
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- 238000005530 etching Methods 0.000 description 2
- 239000002253 acid Substances 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
- 238000003486 chemical etching Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 150000003839 salts Chemical class 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
- H01G9/048—Electrodes or formation of dielectric layers thereon characterised by their structure
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Fixed Capacitors And Capacitor Manufacturing Machines (AREA)
Description
Verfahren zur Herstellung einer Elektrode mit poröser Oberfläche für. elektrolytische Kondensatoren Es sind elektrolytische Flüssigkeitskondensatoren mit Aluminiumelektroden bekanntgeworden, bei denen zwecks Kapazitätsvergrößerung die Elektrodenoberflächen einer chemischen Ätzung unterzogen wurden.Process for the production of an electrode with a porous surface for. electrolytic capacitors They are electrolytic liquid capacitors became known with aluminum electrodes, in which to increase the capacity the electrode surfaces have been subjected to chemical etching.
DieÄtzbäder bestehen z. B'. aus Salzsäure oder enthalten mindestens solche. Da derartige Sälzsäurereste im fertigen Kondensator sehr störend sind, ist es erforderlich, die Elektroden nach dem Ätzvorgang sehr sorgfältig zu waschen und zu säubern. Es. ist ersichtlich, daß. eine solche Reinigung der Elektroden verhältnismäßig umständlich ist. . ' Die vorliegende Erfindung bezieht sich nun auf ein Verfahren zur Herstellung einer Elektrode mit poröser Oberfläche für elektrolytische Kondensatoren und bezweckt, den angeführten Nachteil zu vermeiden. Gemäß der Erfindung wird dies dadurch erreicht, daß die Porosität der Elektrode durch Glimmentladungen hervorgebracht wird.The etching baths consist e.g. B '. from hydrochloric acid or contain at least such. Since such salt acid residues are very troublesome in the finished condenser it is necessary to wash the electrodes very carefully after the etching process and to clean up. It. it can be seen that. such cleaning of the electrodes is proportionate is awkward. . The present invention now relates to a method for the production of an electrode with a porous surface for electrolytic capacitors and aims to avoid the disadvantage mentioned. According to the invention this will be achieved in that the porosity of the electrode is brought about by glow discharges will.
Die - Glimmentladungen können z. B. im Vakuum vorgenommen werden, das seinerseits völlig frei von Verunreinigungen gehalten werden kann.The - glow discharges can, for. B. be carried out in a vacuum, which in turn can be kept completely free from contamination.
Die Porosität der Elektrode-kann weiterhin durch Glimmentladungen verstärkt werden.The porosity of the electrode can still be caused by glow discharges be reinforced.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE1933S0126436 DE691337C (en) | 1933-05-27 | 1933-05-27 | Process for the production of an electrode with a porous surface for electrolytic capacitors |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE1933S0126436 DE691337C (en) | 1933-05-27 | 1933-05-27 | Process for the production of an electrode with a porous surface for electrolytic capacitors |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE691337C true DE691337C (en) | 1940-05-23 |
Family
ID=7537172
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE1933S0126436 Expired DE691337C (en) | 1933-05-27 | 1933-05-27 | Process for the production of an electrode with a porous surface for electrolytic capacitors |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE691337C (en) |
-
1933
- 1933-05-27 DE DE1933S0126436 patent/DE691337C/en not_active Expired
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