GB1196867A - Improvements in or relating to Electrolytes for Electrolytic Capacitors - Google Patents
Improvements in or relating to Electrolytes for Electrolytic CapacitorsInfo
- Publication number
- GB1196867A GB1196867A GB4200968A GB4200968A GB1196867A GB 1196867 A GB1196867 A GB 1196867A GB 4200968 A GB4200968 A GB 4200968A GB 4200968 A GB4200968 A GB 4200968A GB 1196867 A GB1196867 A GB 1196867A
- Authority
- GB
- United Kingdom
- Prior art keywords
- mols
- electrolyte
- glycol
- ammonia
- water
- 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
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES OR LIGHT-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
- H01G9/022—Electrolytes; Absorbents
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Electric Double-Layer Capacitors Or The Like (AREA)
- Secondary Cells (AREA)
Abstract
1,196,867. Capacitor electrolytes. SIEMENS A.G. 4 Sept., 1968 [5 Sept., 1967], No. 42009/68. Heading H1M. An electrolyte for an electrolytic capacitor having aluminium electrodes comprises, per mol. of boric acid, 1À0 to 3À5 mols glycol, 0À0 to 0À35 mols. ammonia, 0À03 to 025 mols. sodium, 0À04 to 0À35 mols sorbitol and/or mannitol and up to 3À0 mols of water. Alternatively up to 1À2 mols water may be removed from the mixed constituents. Preferably the electrolyte is made up by boiling the boric acid, glycol, sodium (in the form of sodium hydroxide) and water until the desired water content is reached, and adding ammonia at least partially in the form of a glycollic solution, e.g. as a mixture of ammonia-rich glycol and ammonium borate. Capacitors can be impregnated with the electrolyte at comparatively low temperatures, e.g. room temperature, so that changes in composition due to evaporation are minimized, without crystallization taking place. The electrolyte may also contain phosphoric acid.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE1614596 | 1967-09-05 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1196867A true GB1196867A (en) | 1970-07-01 |
Family
ID=5682003
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB4200968A Expired GB1196867A (en) | 1967-09-05 | 1968-09-04 | Improvements in or relating to Electrolytes for Electrolytic Capacitors |
Country Status (6)
| Country | Link |
|---|---|
| BE (1) | BE720441A (en) |
| DE (1) | DE1614596B1 (en) |
| ES (1) | ES357812A1 (en) |
| FR (1) | FR1582272A (en) |
| GB (1) | GB1196867A (en) |
| NL (1) | NL6812665A (en) |
-
1967
- 1967-09-05 DE DE1967S0111677 patent/DE1614596B1/en not_active Withdrawn
-
1968
- 1968-09-03 FR FR1582272D patent/FR1582272A/fr not_active Expired
- 1968-09-03 ES ES357812A patent/ES357812A1/en not_active Expired
- 1968-09-04 GB GB4200968A patent/GB1196867A/en not_active Expired
- 1968-09-05 NL NL6812665A patent/NL6812665A/xx unknown
- 1968-09-05 BE BE720441D patent/BE720441A/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| ES357812A1 (en) | 1970-03-16 |
| NL6812665A (en) | 1969-03-07 |
| FR1582272A (en) | 1969-09-26 |
| BE720441A (en) | 1969-03-05 |
| DE1614596B1 (en) | 1970-09-03 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PCNP | Patent ceased through non-payment of renewal fee |