GB892300A - - Google Patents
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- Publication number
- GB892300A GB892300A GB892300DA GB892300A GB 892300 A GB892300 A GB 892300A GB 892300D A GB892300D A GB 892300DA GB 892300 A GB892300 A GB 892300A
- Authority
- GB
- United Kingdom
- Prior art keywords
- manganese
- oxide
- layer
- solution
- ammonia
- 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.)
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- Inorganic Compounds Of Heavy Metals (AREA)
Abstract
892,300. Dry electrolytic capacitors with oxide films. STANDARD TELEPHONES & CABLES Ltd. Oct. 21, 1960 [Oct. 23, 1959], No. 35985/59. Class 37. In a method of manufacturing an electrolytic capacitor which includes the steps of forming an oxide film upon the surface of an anode body of valve metal, applying a layer of a hydrated manganese oxide upon the oxide film and decomposing the last-mentioned layer to manganese dioxide, the oxide coated anode (which may be of either tantalum or niobium) is first impregnated with a solution of manganese nitrate, either by dipping or under vacuum. The anode body is removed from this solution and impregnated with ammonia solution, which forms the layer of hydrated manganese oxide [MnO(OH)]. The body is then dried and heated to decompose the layer to manganese dioxide. Two further methods, using ammonia gas, are described. Other salts of manganese which will yield the above product after reaction with ammonia are mentioned, and the salts may be dissolved in alcoholic solution.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB892300A true GB892300A (en) |
Family
ID=1753107
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB892300D Active GB892300A (en) |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB892300A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4148131A (en) * | 1975-11-27 | 1979-04-10 | Matsushita Electric Industrial Co., Ltd. | Method for manufacturing a solid electrolytic capacitor |
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0
- GB GB892300D patent/GB892300A/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4148131A (en) * | 1975-11-27 | 1979-04-10 | Matsushita Electric Industrial Co., Ltd. | Method for manufacturing a solid electrolytic capacitor |
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