GB1033020A - A method of manufacturing a solid electrolytic capacitor - Google Patents
A method of manufacturing a solid electrolytic capacitorInfo
- Publication number
- GB1033020A GB1033020A GB1185264A GB1185264A GB1033020A GB 1033020 A GB1033020 A GB 1033020A GB 1185264 A GB1185264 A GB 1185264A GB 1185264 A GB1185264 A GB 1185264A GB 1033020 A GB1033020 A GB 1033020A
- Authority
- GB
- United Kingdom
- Prior art keywords
- mixture
- manganese nitrate
- repeated
- minutes
- manganese
- 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 1
- 238000004519 manufacturing process Methods 0.000 title 1
- 239000007787 solid Substances 0.000 title 1
- NUJOXMJBOLGQSY-UHFFFAOYSA-N manganese dioxide Chemical compound O=[Mn]=O NUJOXMJBOLGQSY-UHFFFAOYSA-N 0.000 abstract 4
- MIVBAHRSNUNMPP-UHFFFAOYSA-N manganese(2+);dinitrate Chemical compound [Mn+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O MIVBAHRSNUNMPP-UHFFFAOYSA-N 0.000 abstract 3
- 239000000203 mixture Substances 0.000 abstract 3
- ZHNUHDYFZUAESO-UHFFFAOYSA-N Formamide Chemical compound NC=O ZHNUHDYFZUAESO-UHFFFAOYSA-N 0.000 abstract 2
- 239000007864 aqueous solution Substances 0.000 abstract 2
- 239000003638 chemical reducing agent Substances 0.000 abstract 2
- 238000010438 heat treatment Methods 0.000 abstract 2
- 239000002253 acid Substances 0.000 abstract 1
- 150000001299 aldehydes Chemical class 0.000 abstract 1
- 150000001408 amides Chemical class 0.000 abstract 1
- 150000001732 carboxylic acid derivatives Chemical class 0.000 abstract 1
- 239000011248 coating agent Substances 0.000 abstract 1
- 238000000576 coating method Methods 0.000 abstract 1
- 238000007598 dipping method Methods 0.000 abstract 1
- 238000007654 immersion Methods 0.000 abstract 1
- 150000002576 ketones Chemical class 0.000 abstract 1
- 239000007788 liquid Substances 0.000 abstract 1
- 229910052751 metal Inorganic materials 0.000 abstract 1
- 239000002184 metal Substances 0.000 abstract 1
- 238000000034 method Methods 0.000 abstract 1
- 239000000243 solution Substances 0.000 abstract 1
- 229910052715 tantalum Inorganic materials 0.000 abstract 1
- GUVRBAGPIYLISA-UHFFFAOYSA-N tantalum atom Chemical compound [Ta] GUVRBAGPIYLISA-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
- H01G9/0029—Processes of manufacture
- H01G9/0036—Formation of the solid electrolyte layer
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Manufacturing & Machinery (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Inorganic Compounds Of Heavy Metals (AREA)
- Chemically Coating (AREA)
Abstract
An oxidized metal body is coated with manganese dioxide by dipping it into a mixture of aqueous solution of manganese nitrate and an organic reducing agent and heating at a temperature below 300 DEG C., the immersion and heating steps being repeated, for example five times, until the coating is of the required thickness. The manganese nitrate concentration may be 50% by weight or may be as high as 63%. The organic reducing agent may be an acid amide, a carboxylic acid, a hydrocarboxylic acid, an aldehyde, or a ketone and may be added to the aqueous solution in a quantity of 10% by volume, or of 20% or 30%. In one example an oxidized sintered tantalum body is immersed for five minutes in a mixture of manganese nitrate solution with 10% formamide at 50 DEG C. and then heated for five minutes at 230 DEG C. in an electric oven to decompose the adsorbed and occluded liquid mixture into manganese dioxide, these processes being repeated.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1504563 | 1963-03-22 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1033020A true GB1033020A (en) | 1966-06-15 |
Family
ID=11877848
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1185264A Expired GB1033020A (en) | 1963-03-22 | 1964-03-20 | A method of manufacturing a solid electrolytic capacitor |
Country Status (2)
| Country | Link |
|---|---|
| CH (1) | CH472105A (en) |
| GB (1) | GB1033020A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6674635B1 (en) | 2001-06-11 | 2004-01-06 | Avx Corporation | Protective coating for electrolytic capacitors |
| US6864147B1 (en) | 2002-06-11 | 2005-03-08 | Avx Corporation | Protective coating for electrolytic capacitors |
-
1964
- 1964-03-17 CH CH340464A patent/CH472105A/en not_active IP Right Cessation
- 1964-03-20 GB GB1185264A patent/GB1033020A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6674635B1 (en) | 2001-06-11 | 2004-01-06 | Avx Corporation | Protective coating for electrolytic capacitors |
| US6864147B1 (en) | 2002-06-11 | 2005-03-08 | Avx Corporation | Protective coating for electrolytic capacitors |
Also Published As
| Publication number | Publication date |
|---|---|
| CH472105A (en) | 1969-04-30 |
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