GB784957A - Dry capacitor - Google Patents
Dry capacitorInfo
- Publication number
- GB784957A GB784957A GB22755/55A GB2275555A GB784957A GB 784957 A GB784957 A GB 784957A GB 22755/55 A GB22755/55 A GB 22755/55A GB 2275555 A GB2275555 A GB 2275555A GB 784957 A GB784957 A GB 784957A
- Authority
- GB
- United Kingdom
- Prior art keywords
- tantalum
- assembly
- electrodes
- film
- discs
- 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 abstract 4
- 229910052715 tantalum Inorganic materials 0.000 abstract 5
- GUVRBAGPIYLISA-UHFFFAOYSA-N tantalum atom Chemical compound [Ta] GUVRBAGPIYLISA-UHFFFAOYSA-N 0.000 abstract 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract 3
- 229910002804 graphite Inorganic materials 0.000 abstract 3
- 239000010439 graphite Substances 0.000 abstract 3
- 229910052751 metal Inorganic materials 0.000 abstract 2
- 239000002184 metal Substances 0.000 abstract 2
- 229910052710 silicon Inorganic materials 0.000 abstract 2
- 239000010703 silicon Substances 0.000 abstract 2
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 abstract 1
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 abstract 1
- 239000002253 acid Substances 0.000 abstract 1
- MVMLTMBYNXHXFI-UHFFFAOYSA-H antimony(3+);trisulfate Chemical class [Sb+3].[Sb+3].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O MVMLTMBYNXHXFI-UHFFFAOYSA-H 0.000 abstract 1
- 229910052797 bismuth Inorganic materials 0.000 abstract 1
- JCXGWMGPZLAOME-UHFFFAOYSA-N bismuth atom Chemical compound [Bi] JCXGWMGPZLAOME-UHFFFAOYSA-N 0.000 abstract 1
- 238000007598 dipping method Methods 0.000 abstract 1
- 239000003822 epoxy resin Substances 0.000 abstract 1
- 150000004673 fluoride salts Chemical class 0.000 abstract 1
- 230000004048 modification Effects 0.000 abstract 1
- 238000012986 modification Methods 0.000 abstract 1
- 239000004033 plastic Substances 0.000 abstract 1
- 229920000647 polyepoxide Polymers 0.000 abstract 1
- 229920001296 polysiloxane Polymers 0.000 abstract 1
- 238000010125 resin casting Methods 0.000 abstract 1
- 230000002441 reversible effect Effects 0.000 abstract 1
- 229910052709 silver Inorganic materials 0.000 abstract 1
- 239000004332 silver Substances 0.000 abstract 1
- 239000007787 solid Substances 0.000 abstract 1
- 239000000126 substance Substances 0.000 abstract 1
- 229910021653 sulphate ion Inorganic materials 0.000 abstract 1
- 235000011149 sulphuric acid Nutrition 0.000 abstract 1
- 239000001117 sulphuric acid Substances 0.000 abstract 1
- FAKFSJNVVCGEEI-UHFFFAOYSA-J tin(4+);disulfate Chemical compound [Sn+4].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O FAKFSJNVVCGEEI-UHFFFAOYSA-J 0.000 abstract 1
- 239000002966 varnish 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
- H01G4/00—Fixed capacitors; Processes of their manufacture
- H01G4/002—Details
- H01G4/018—Dielectrics
- H01G4/06—Solid dielectrics
- H01G4/08—Inorganic dielectrics
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Fixed Capacitors And Capacitor Manufacturing Machines (AREA)
Abstract
784,957. Electrolytic capacitors. MALLORY & CO., Inc., P. R. Aug. 8,1956 [Sept. 14, 1954], No. 22755/55. Class 37. A dry electrolytic capacitor comprises an anode of a film-forming metal such as tantalum and a cathode of a non-film forming substance such as graphite, silver or silicon, the electrodes being separated by a solid sulphate which is maintained in close contact with both electrodes. Preferably tin sulphate is employed, though it is stated that bismuth and antimony sulphates may also be used. In the embodiment shown a tantalum disc 5 which may be anodized prior to assembly in sulphuric acid is separated from graphite discs 1, 2 by means of pressed tinsulphate discs 3, 4. To increase the capacitance the tantalum disc may be etched electrolytically in an acid fluoride salt. The assembly is held together by a rivet 6 which is insulated from the tantalum by a plastic sleeve 8. The rivet 6 supports a negative terminal 7 electrically connected to the graphite discs. A positive terminal 9 is provided by a solderable metal element pressed to a tab extending from the tantalum disc 5. The assembly may be sealed by dipping in a silicone varnish or by encasing in an epoxy-resin casting. In a modification the negative electrode may be in the form of a silicon cup which also serves as the cell container. A reversible capacitor may be constructed having two film-forming electrodes.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US784957XA | 1954-09-14 | 1954-09-14 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB784957A true GB784957A (en) | 1957-10-23 |
Family
ID=22144370
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB22755/55A Expired GB784957A (en) | 1954-09-14 | 1955-08-08 | Dry capacitor |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB784957A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112164591A (en) * | 2020-10-09 | 2021-01-01 | 福建国光新业科技有限公司 | Manufacturing method for improving high-temperature high-humidity tolerance of laminated aluminum electrolytic capacitor |
-
1955
- 1955-08-08 GB GB22755/55A patent/GB784957A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112164591A (en) * | 2020-10-09 | 2021-01-01 | 福建国光新业科技有限公司 | Manufacturing method for improving high-temperature high-humidity tolerance of laminated aluminum electrolytic capacitor |
| CN112164591B (en) * | 2020-10-09 | 2023-03-10 | 福建国光新业科技股份有限公司 | Manufacturing method for improving high-temperature high-humidity tolerance of laminated aluminum electrolytic capacitor |
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