GB756039A - Improvements in or relating to methods for the electro-chemical treatment of metal electrodes for electrolytic cells and apparatus for carrying out such processes - Google Patents
Improvements in or relating to methods for the electro-chemical treatment of metal electrodes for electrolytic cells and apparatus for carrying out such processesInfo
- Publication number
- GB756039A GB756039A GB7100/53A GB710053A GB756039A GB 756039 A GB756039 A GB 756039A GB 7100/53 A GB7100/53 A GB 7100/53A GB 710053 A GB710053 A GB 710053A GB 756039 A GB756039 A GB 756039A
- Authority
- GB
- United Kingdom
- Prior art keywords
- electrode
- electrolyte
- current
- aluminium
- self
- 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
- 238000000034 method Methods 0.000 title abstract 6
- 229910052751 metal Inorganic materials 0.000 title abstract 5
- 239000002184 metal Substances 0.000 title abstract 5
- 239000000126 substance Substances 0.000 title abstract 3
- 239000003792 electrolyte Substances 0.000 abstract 6
- 239000004411 aluminium Substances 0.000 abstract 4
- 229910052782 aluminium Inorganic materials 0.000 abstract 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 abstract 4
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 abstract 3
- MUBZPKHOEPUJKR-UHFFFAOYSA-N Oxalic acid Chemical compound OC(=O)C(O)=O MUBZPKHOEPUJKR-UHFFFAOYSA-N 0.000 abstract 3
- 238000007788 roughening Methods 0.000 abstract 3
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 abstract 2
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 abstract 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 abstract 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 abstract 2
- VSCWAEJMTAWNJL-UHFFFAOYSA-K aluminium trichloride Chemical compound Cl[Al](Cl)Cl VSCWAEJMTAWNJL-UHFFFAOYSA-K 0.000 abstract 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 abstract 1
- KRHYYFGTRYWZRS-UHFFFAOYSA-M Fluoride anion Chemical compound [F-] KRHYYFGTRYWZRS-UHFFFAOYSA-M 0.000 abstract 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 abstract 1
- 230000003190 augmentative effect Effects 0.000 abstract 1
- 229910052799 carbon Inorganic materials 0.000 abstract 1
- 238000004140 cleaning Methods 0.000 abstract 1
- 229910052802 copper Inorganic materials 0.000 abstract 1
- 239000010949 copper Substances 0.000 abstract 1
- 238000006073 displacement reaction Methods 0.000 abstract 1
- 235000011187 glycerol Nutrition 0.000 abstract 1
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 abstract 1
- 229910052742 iron Inorganic materials 0.000 abstract 1
- 239000011133 lead Substances 0.000 abstract 1
- 229910052749 magnesium Inorganic materials 0.000 abstract 1
- 239000011777 magnesium Substances 0.000 abstract 1
- 235000006408 oxalic acid Nutrition 0.000 abstract 1
- 239000011780 sodium chloride Substances 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 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
- H01G9/048—Electrodes or formation of dielectric layers thereon characterised by their structure
- H01G9/055—Etched foil electrodes
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
- C25B11/00—Electrodes; Manufacture thereof not otherwise provided for
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- ing And Chemical Polishing (AREA)
Abstract
756,039. Electrolytic treatment of electrodes. KILCHLING, K. March 13, 1953 [March 13, 1952; April 21, 1952], No. 7100/53. Drawings to Specification. Class 41. A method of electrochemically preparing metallic electrodes for electrolytic cells comprises electrically connecting an electrode to be prepared, the surface of which is free from a locally insulating layer, with a second metal externally of an aqueous electrolyte in which the electrode and second metal are immersed, the second metal being chosen so that. its position relative to the electrode metal in the displacement series is such that the greater part of the electrolytic preparation takes place by utilization of the self-produced current. The electrode to be prepared may be of aluminium and may be electrically connected to a second electrode of carbon, copper, lead or iron, externally of an electrolyte which may be hydrochloric acid, aluminium chloride, sodium chloride, or a fluoride, to increase the surface area of the aluminium electrode by roughening as it serves as an anode. The self-produced current may be augmented by connecting an external source of current between the electrodes. The electrolyte may be one which also roughens the aluminium by chemical action. The roughened aluminium electrode is then cleaned by being made a cathode by connection to another electrode, such as one of magnesium, in an electrolyte, so that the self-produced current flows in the opposite direction to that in the roughening process. The electrolyte may be water, since substances adhering to the electrode from the roughening process are sufficient for a current to be produced, and may contain glycerin or glycol; the electrolyte may also contain acetic or oxalic acid. An external source of current may also be added to the self-produced current in the cleaning process.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE318179X | 1952-03-13 | ||
| DE210452X | 1952-04-21 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB756039A true GB756039A (en) | 1956-08-29 |
Family
ID=25760604
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB7100/53A Expired GB756039A (en) | 1952-03-13 | 1953-03-13 | Improvements in or relating to methods for the electro-chemical treatment of metal electrodes for electrolytic cells and apparatus for carrying out such processes |
Country Status (3)
| Country | Link |
|---|---|
| CH (1) | CH318179A (en) |
| FR (1) | FR1072938A (en) |
| GB (1) | GB756039A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4292148A (en) * | 1980-08-07 | 1981-09-29 | Sprague Electric Company | Post-treatment of etched aluminum capacitor foil |
| US4394232A (en) * | 1981-02-12 | 1983-07-19 | Fokker B.V. | Pickling of aluminum |
| US4397721A (en) * | 1981-02-12 | 1983-08-09 | Fokker B.V. | Pickling of aluminum |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1106420B (en) * | 1957-12-17 | 1961-05-10 | Dr Karl Kilchling | Process for roughening valve metal electrodes for electrolytic capacitors by means of electrolytic etching |
-
1953
- 1953-03-09 CH CH318179D patent/CH318179A/en unknown
- 1953-03-13 GB GB7100/53A patent/GB756039A/en not_active Expired
- 1953-03-13 FR FR1072938D patent/FR1072938A/en not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4292148A (en) * | 1980-08-07 | 1981-09-29 | Sprague Electric Company | Post-treatment of etched aluminum capacitor foil |
| US4394232A (en) * | 1981-02-12 | 1983-07-19 | Fokker B.V. | Pickling of aluminum |
| US4397721A (en) * | 1981-02-12 | 1983-08-09 | Fokker B.V. | Pickling of aluminum |
Also Published As
| Publication number | Publication date |
|---|---|
| FR1072938A (en) | 1954-09-16 |
| CH318179A (en) | 1956-12-31 |
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