DE939826C - Anode for electrolytic capacitors - Google Patents
Anode for electrolytic capacitorsInfo
- Publication number
- DE939826C DE939826C DEN1358D DEN0001358D DE939826C DE 939826 C DE939826 C DE 939826C DE N1358 D DEN1358 D DE N1358D DE N0001358 D DEN0001358 D DE N0001358D DE 939826 C DE939826 C DE 939826C
- Authority
- DE
- Germany
- Prior art keywords
- electrolytic capacitors
- anode
- fabric
- aluminum
- threads
- 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 6
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 10
- 229910052782 aluminium Inorganic materials 0.000 claims description 10
- 239000004744 fabric Substances 0.000 claims description 8
- 238000005096 rolling process Methods 0.000 claims description 2
- 238000000034 method Methods 0.000 description 4
- 230000002745 absorbent Effects 0.000 description 2
- 239000002250 absorbent Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000004753 textile Substances 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000007788 roughening Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 238000004804 winding Methods 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)
- Primary Cells (AREA)
Description
Um eine hohe Kapazitätsausbeute bei Elektrolytkondensatoren zu erzielen, wird die aktive Oberfläche der Anoden, die von der Elektrolytflüssigkeit bedeckt ist, möglichst groß gemacht. Man erzielt z. B. eine vergrößerte Oberfläche dadurch, daß man die Aluminiumanodenbänder mechanisch oder chemisch aufrauht. Hierdurch sind beträchtliche Oberflächenfaktoren erzielt worden. Nach einem anderen bekannten Verfahren werden oberflächenvergrößerte Anoden dadurch hergestellt, daß das Aluminium nach Art des Schoopschen Spritzverfahrens auf einen Träger, z` B. auf ein Textilgewebe, aufgebracht wird.In order to achieve a high capacity yield with electrolytic capacitors, becomes the active surface of the anodes, which is covered by the electrolyte liquid is made as big as possible. One achieves z. B. an enlarged surface by that the aluminum anode strips are roughened mechanically or chemically. Through this are considerable surface factors have been achieved. According to another known method enlarged surface anodes are produced by the aluminum after Type of Schoop's spraying process on a carrier, e.g. on a textile fabric, is applied.
Die bisher bekanntgewordenen Oberflächenvergrößerungsverfahren haben den ' Nachteif, 4aß der Oberflächenvergrößerungsfaktor starken Schwankungen unterliegt, so daß der serienmäßigen Fabrikation erhebliche Schwierigkeiten erwachsen. Es ist auch schon vorgeschlagen worden, aus Aluminiumdrähten feinen Durchmessers Gewebe herzustellen, um so das Verhältnis Oberfläche zu aufgewandter Materialmasse künstlich zu vergrößern. Bei solchen Geweben bleibt aber der Vergrößerungsfaktor relativ gering, da, der Herstellung von kreisrunden Drähten aus Reinstaluminium, wie es für Elektrolytkondensatoren gebraucht wird, eine untere Grenze, etwa in der Gegend von 5/", mm, gezogen -ist.The previously known surface enlargement methods have the 'Nachteif, 4ass the surface magnification strong fluctuations, so that the standard fabrication grown considerable difficulties. It has also already been proposed to produce fabric from aluminum wires of fine diameter in order to artificially increase the ratio of surface area to expended material mass. With such fabrics, however, the magnification factor remains relatively low, since a lower limit, around 5 / ", mm, is drawn for the production of circular wires from pure aluminum, as is used for electrolytic capacitors.
Die geschilderten Mängel bei Anoden in Gewebeform mit großer Oberfläche für elektrolytische Kondensatoren werden gemäß der Erfindung da,-durch behoben, daß das Gewebe ganz oder teilweise aus Fäden aufgebaut ist, die aus einem saugfähigen Trägerfaden bestehen, um den ein durch Auswalzen feiner Aluminiumdrähte erhaltenes Aluminiumband. von etwa -1/ioo mm Stärke und wenigen zehntel Millimeterti -Breite spiralig herumgewickelt ist. Diese Drähte i werden spiralförmig um einen Spinnstoffade,u 2-gewunden, so daß sie diesen nahe--zu deckend 8ijäliülle'n,-wie in der Zeichnung (1#ig.,i) dargestellt. Solche Fäden 3 werden dann zu einem Textilgewebe verbunden, indem sie etwa die Längsfäden eines Bandes darstellen und durch einen querschießenden Aluminiumfaden 4 (s. Fig. 2) gebunden werden, oder man kann die Fäden auch in beliebiger bekannter Weise verweben. Es ist dabei an sich bekannt, Gewebe als Elektroden in elektrolytischen Kondensatoren zu verwenden. Auf jeden Fall wird durch die gekennzeichneteAnode erreicht, daß- durcli cfa# spiralige Umwinden des saugfähigen T#rägerfadens sowohl Innen- als auch Außenfläche des Aluminiumbändchens benetzt und damit eine größtmögliche Oberflächenausnutzung bewirkt wird. Man kann sogar noch dazu übergehen, die Oberfläche der dünnen Bändchen durch eines der bekannten Verfahren aufzuranhen.The described deficiencies in anodes in fabric form with a large surface for electrolytic capacitors are there, -by remedied that the fabric is made up entirely or partially of threads consisting of an absorbent carrier thread, around which an aluminum strip obtained by rolling out fine aluminum wires . about -1 / 100 mm thick and a few tenths of a millimeter wide is wrapped in a spiral. These wires i are spirally wound around a spinnstoffade, u 2 -wound, so that they are close to this - to cover 8ijäliülle'n - as shown in the drawing (1 # fig., I). Such threads 3 are then connected to a textile fabric in that they represent, for example, the longitudinal threads of a tape and are bound by a transverse aluminum thread 4 (see FIG. 2), or the threads can also be woven in any known manner. It is known per se to use tissue as electrodes in electrolytic capacitors. In any case, the marked anode ensures that both the inner and outer surfaces of the aluminum tape are wetted by the spiral winding of the absorbent carrier thread, thus making the greatest possible use of the surface. One can even go over to roughening the surface of the thin ribbons by one of the known methods.
Claims (1)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEN1358D DE939826C (en) | 1941-11-13 | 1941-11-13 | Anode for electrolytic capacitors |
FR887570D FR887570A (en) | 1941-11-13 | 1942-11-07 | Anode for electrolyte capacitor |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEN1358D DE939826C (en) | 1941-11-13 | 1941-11-13 | Anode for electrolytic capacitors |
Publications (1)
Publication Number | Publication Date |
---|---|
DE939826C true DE939826C (en) | 1956-03-01 |
Family
ID=7337713
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DEN1358D Expired DE939826C (en) | 1941-11-13 | 1941-11-13 | Anode for electrolytic capacitors |
Country Status (2)
Country | Link |
---|---|
DE (1) | DE939826C (en) |
FR (1) | FR887570A (en) |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE607652C (en) * | 1931-06-24 | 1935-01-04 | Siemens & Halske Akt Ges | Electrolytic capacitor, the electrodes of which are made of metal wires |
DE611812C (en) * | 1935-04-06 | Siemens & Halske Akt Ges | Electrolytic capacitor with wound electrodes |
-
1941
- 1941-11-13 DE DEN1358D patent/DE939826C/en not_active Expired
-
1942
- 1942-11-07 FR FR887570D patent/FR887570A/en not_active Expired
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE611812C (en) * | 1935-04-06 | Siemens & Halske Akt Ges | Electrolytic capacitor with wound electrodes | |
DE607652C (en) * | 1931-06-24 | 1935-01-04 | Siemens & Halske Akt Ges | Electrolytic capacitor, the electrodes of which are made of metal wires |
Also Published As
Publication number | Publication date |
---|---|
FR887570A (en) | 1943-11-17 |
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