GB734524A - Improvements in or relating to metal foil for electrolytic condensers - Google Patents
Improvements in or relating to metal foil for electrolytic condensersInfo
- Publication number
- GB734524A GB734524A GB21668/52A GB2166852A GB734524A GB 734524 A GB734524 A GB 734524A GB 21668/52 A GB21668/52 A GB 21668/52A GB 2166852 A GB2166852 A GB 2166852A GB 734524 A GB734524 A GB 734524A
- Authority
- GB
- United Kingdom
- Prior art keywords
- electrolytic
- metal foil
- relating
- per cent
- electrolytic condensers
- 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
- 239000011888 foil Substances 0.000 title abstract 3
- 229910052751 metal Inorganic materials 0.000 title abstract 3
- 239000002184 metal Substances 0.000 title abstract 3
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 abstract 2
- 239000004411 aluminium Substances 0.000 abstract 2
- 229910052782 aluminium Inorganic materials 0.000 abstract 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 abstract 2
- 239000013078 crystal Substances 0.000 abstract 2
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 abstract 2
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 abstract 1
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 abstract 1
- 239000002253 acid Substances 0.000 abstract 1
- 229910052790 beryllium Inorganic materials 0.000 abstract 1
- ATBAMAFKBVZNFJ-UHFFFAOYSA-N beryllium atom Chemical compound [Be] ATBAMAFKBVZNFJ-UHFFFAOYSA-N 0.000 abstract 1
- 239000003990 capacitor Substances 0.000 abstract 1
- 229910052804 chromium Inorganic materials 0.000 abstract 1
- 239000011651 chromium Substances 0.000 abstract 1
- 229910017052 cobalt Inorganic materials 0.000 abstract 1
- 239000010941 cobalt Substances 0.000 abstract 1
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 abstract 1
- 238000005260 corrosion Methods 0.000 abstract 1
- 230000007797 corrosion Effects 0.000 abstract 1
- 230000002999 depolarising effect Effects 0.000 abstract 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 abstract 1
- 229910052737 gold Inorganic materials 0.000 abstract 1
- 239000010931 gold Substances 0.000 abstract 1
- 239000000463 material Substances 0.000 abstract 1
- 238000000034 method Methods 0.000 abstract 1
- 229910052759 nickel Inorganic materials 0.000 abstract 1
- -1 nolybdenum Chemical compound 0.000 abstract 1
- 229910052697 platinum Inorganic materials 0.000 abstract 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 abstract 1
- 229910052721 tungsten Inorganic materials 0.000 abstract 1
- 239000010937 tungsten Substances 0.000 abstract 1
- 229910052726 zirconium Inorganic materials 0.000 abstract 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
- H01G9/042—Electrodes or formation of dielectric layers thereon characterised by the material
- H01G9/045—Electrodes or formation of dielectric layers thereon characterised by the material based on aluminium
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25F—PROCESSES FOR THE ELECTROLYTIC REMOVAL OF MATERIALS FROM OBJECTS; APPARATUS THEREFOR
- C25F3/00—Electrolytic etching or polishing
- C25F3/02—Etching
- C25F3/04—Etching of light metals
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Power Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Electroplating And Plating Baths Therefor (AREA)
Abstract
A metal foil for electrolytic capacitors having a suface roughened by electrolytic corrosion, consists of high-purity aluminium containing up to 0.03 per cent of a metal other than beryllium or tantalu, which forms microscopic independent crystal types more noble than aluminium in the material, while avoiding the formatiion of mixed crystals, so that it accelerates the corroison process by providing a depolarizing action. Preferably the foil includes at least 0.001 per cent of nickel or platinum, but gold, cobalt, tungsten, nolybdenum, chromium and zirconium may also be used. Alternating current may be used for electrolytic corrision in an acid bath.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE734524X | 1951-08-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB734524A true GB734524A (en) | 1955-08-03 |
Family
ID=6641807
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB21668/52A Expired GB734524A (en) | 1951-08-28 | 1952-08-28 | Improvements in or relating to metal foil for electrolytic condensers |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB734524A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2886432A (en) * | 1955-11-18 | 1959-05-12 | Aluminium Ind Ag | Aluminum foil for electrolytic condensers |
| US3258318A (en) * | 1963-09-10 | 1966-06-28 | Rheinische Blattmetall Ag | Etched metal foil for electrolytic capacitors and the like consisting of silver-aluminum alloys |
| US5518823A (en) * | 1990-12-11 | 1996-05-21 | Showa Aluminum Kabushiki | Aluminum foil as electrolytic condenser electrodes |
| EP1734546A3 (en) * | 2005-06-14 | 2009-02-11 | Mitsubishi Aluminum Kabushiki Kaisha | Aluminum foil for the electrolytic capacitor and etching method for forming etching pits |
| CN1921042B (en) * | 2005-06-14 | 2011-12-14 | 三菱铝株式会社 | Aluminum foil for the electrolytic capacitor and etching method for forming etching pits |
-
1952
- 1952-08-28 GB GB21668/52A patent/GB734524A/en not_active Expired
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2886432A (en) * | 1955-11-18 | 1959-05-12 | Aluminium Ind Ag | Aluminum foil for electrolytic condensers |
| US3258318A (en) * | 1963-09-10 | 1966-06-28 | Rheinische Blattmetall Ag | Etched metal foil for electrolytic capacitors and the like consisting of silver-aluminum alloys |
| US5518823A (en) * | 1990-12-11 | 1996-05-21 | Showa Aluminum Kabushiki | Aluminum foil as electrolytic condenser electrodes |
| EP1734546A3 (en) * | 2005-06-14 | 2009-02-11 | Mitsubishi Aluminum Kabushiki Kaisha | Aluminum foil for the electrolytic capacitor and etching method for forming etching pits |
| CN1921042B (en) * | 2005-06-14 | 2011-12-14 | 三菱铝株式会社 | Aluminum foil for the electrolytic capacitor and etching method for forming etching pits |
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