GB1022459A - Improvements in or relating to methods of anodizing electrodes for use in electrolytic capacitors - Google Patents
Improvements in or relating to methods of anodizing electrodes for use in electrolytic capacitorsInfo
- Publication number
- GB1022459A GB1022459A GB24082/64A GB2408264A GB1022459A GB 1022459 A GB1022459 A GB 1022459A GB 24082/64 A GB24082/64 A GB 24082/64A GB 2408264 A GB2408264 A GB 2408264A GB 1022459 A GB1022459 A GB 1022459A
- Authority
- GB
- United Kingdom
- Prior art keywords
- relating
- methods
- electrolytic capacitors
- anodizing
- electrodes
- 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
- 238000007743 anodising Methods 0.000 title abstract 2
- 239000003990 capacitor Substances 0.000 title abstract 2
- 238000000034 method Methods 0.000 title abstract 2
- 239000003792 electrolyte Substances 0.000 abstract 2
- 229910052758 niobium Inorganic materials 0.000 abstract 2
- 239000010955 niobium Substances 0.000 abstract 2
- GUCVJGMIXFAOAE-UHFFFAOYSA-N niobium atom Chemical compound [Nb] GUCVJGMIXFAOAE-UHFFFAOYSA-N 0.000 abstract 2
- 229910052715 tantalum Inorganic materials 0.000 abstract 2
- GUVRBAGPIYLISA-UHFFFAOYSA-N tantalum atom Chemical compound [Ta] GUVRBAGPIYLISA-UHFFFAOYSA-N 0.000 abstract 2
- ABLZXFCXXLZCGV-UHFFFAOYSA-N Phosphorous acid Chemical compound OP(O)=O ABLZXFCXXLZCGV-UHFFFAOYSA-N 0.000 abstract 1
- 239000007864 aqueous solution Substances 0.000 abstract 1
- 239000011888 foil Substances 0.000 abstract 1
- 239000000463 material Substances 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
- H01G9/0029—Processes of manufacture
- H01G9/0032—Processes of manufacture formation of the dielectric layer
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D11/00—Electrolytic coating by surface reaction, i.e. forming conversion layers
- C25D11/02—Anodisation
- C25D11/26—Anodisation of refractory metals or alloys based thereon
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Power Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Electric Double-Layer Capacitors Or The Like (AREA)
- Powder Metallurgy (AREA)
Abstract
A method of anodizing an electrode of tantalum and/or niobium for use in an electrolytic capacitor in which the electrolyte used is an aqueous solution containing between 0.002 and 0.5% by weight of ortho-phosphorous acid. The temperature of the electrolyte is preferably between 30 DEG C. and 60 DEG C. The electrode may consist of a foil, or of a body comprising a core, preferably of the same material, on which powdered tantalum or niobium is sintered.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL294042 | 1963-06-13 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1022459A true GB1022459A (en) | 1966-03-16 |
Family
ID=19754779
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB24082/64A Expired GB1022459A (en) | 1963-06-13 | 1964-06-10 | Improvements in or relating to methods of anodizing electrodes for use in electrolytic capacitors |
Country Status (6)
| Country | Link |
|---|---|
| BE (1) | BE649202A (en) |
| DK (1) | DK109717C (en) |
| ES (1) | ES300891A1 (en) |
| FR (1) | FR1398579A (en) |
| GB (1) | GB1022459A (en) |
| NL (1) | NL294042A (en) |
-
0
- NL NL294042D patent/NL294042A/xx unknown
-
1964
- 1964-06-10 GB GB24082/64A patent/GB1022459A/en not_active Expired
- 1964-06-10 DK DK291364AA patent/DK109717C/en active
- 1964-06-11 ES ES300891A patent/ES300891A1/en not_active Expired
- 1964-06-12 BE BE649202A patent/BE649202A/xx unknown
- 1964-06-13 FR FR978216A patent/FR1398579A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| BE649202A (en) | 1964-12-14 |
| NL294042A (en) | |
| ES300891A1 (en) | 1964-12-01 |
| DK109717C (en) | 1968-06-17 |
| FR1398579A (en) | 1965-05-07 |
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