US1951720A - Electrolytic condenser - Google Patents
Electrolytic condenser Download PDFInfo
- Publication number
- US1951720A US1951720A US538399A US53839931A US1951720A US 1951720 A US1951720 A US 1951720A US 538399 A US538399 A US 538399A US 53839931 A US53839931 A US 53839931A US 1951720 A US1951720 A US 1951720A
- Authority
- US
- United States
- Prior art keywords
- condenser
- electrolytic condenser
- electrolyte
- ammonium
- soap
- 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 - Lifetime
Links
Images
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
Definitions
- the invention relates to condensers of the type wherein a dry electrolytic film is maintained on the surface of armatures or electrodes such as aluminum or magnesium and employing an elec- 6 trolyte in solid or semi-solid form.
- soaps are applicable to the above purpose, in combination with saturated or unsaturated soap-forming acid or acids which when added to the soap will adjust its basicity.
- ammonium soap has certain advantages over other alkali soaps for the above purpose in that the ammonium radical has a somewhat lower solvent action upon the aluminum oxide surface on the anode.
- the electrolyte may be made up by mixing 48 parts of ammonium linoleate, 30 parts stearic acid and 23 parts of oleic acid. to constitute a thick mass which is sufficiently fluid at ordinary temperatures for application without heating, and which is sufliciently solid to be held in position between the condenser armatures or plates, a suitable separator being usually employed.
- ammonium soap mixtures may be em- 25 ployed with satisfactory results, and the oleic acid may be omitted if desired, in which case the electrolyte should be heated before application.
- concentration of fatty acids and the ammonium soap chosen may be varied to obtain varying degrees of consistency and varying characteristics (particularly on aging) of the condensers.
- ammonium soap employed be exceptionally pure since the pressure therein of soaps of other fatty acids or free fatty acids or of water, is not ordinarily objectionable, the water adding to the electrolytic conductivity.
- Inmakingupacondensertheeleotrolytemsy be applied to lighter starched gauze (otherwise untreated) by a stiff knife, while the gauze is upon a raw aluminum cathode. If is rolled condenser is to be formed an aluminum anode, the surface of which has-been oxidized as known in the art, is placed on top of the gauze and electrolyte and covered with another layer of gauze and electrolyte, the whole then being rolled up to complete the condenser.
- FIG. 1 is a perspective view of the condenser partially unrolled
- Fig. 2 is an enlarged cross-sectional view taken through the condenser along the line 2-2 of Fig. 1.
- the numeral 1 designates one electrode with its terminal 2.
- the other electrode is designated by 3 with its terminal shown at 4.
- Between the electrodes are layers of gauze 5 and 8 impregnated with the electrolyte.
- An electrolytic condenser of the class described having an armature of the film-forming type, and an electrolyte containing an ammonium soap combined with a fatty acid.
- An electrolytic condenser of the class described having an armature of the film-forming type, and an electrolyte containing an ammonium soap combined with a mixture of fatty acids.
- An electrolytic condenser of the class described having an armature of the film-forming type, and an electrolyte containing an ammonium linoleate and stearic acid.
- An electrolytic condenser of the class described having an armature of the film-forming type, and an electrolyte containing an ammonium soap combined with stearlc acid.
Description
March 20, 1934.
M. BERGSTEIN ELECTROLYTIC CONDENSER Filed May 18, 1931 L k fr Tr E w w 6w W Y MB Patented Mar. 20, 1934 UNITED STATES PATENT OFFICE Micamold Radio a corporation of New York.
Application May 18, 1931, Serial No. 538,399
4 Claims. (Cl. 115-315) The invention relates to condensers of the type wherein a dry electrolytic film is maintained on the surface of armatures or electrodes such as aluminum or magnesium and employing an elec- 6 trolyte in solid or semi-solid form.
I have discovered that soaps are applicable to the above purpose, in combination with saturated or unsaturated soap-forming acid or acids which when added to the soap will adjust its basicity.
10 An ammonium soap has certain advantages over other alkali soaps for the above purpose in that the ammonium radical has a somewhat lower solvent action upon the aluminum oxide surface on the anode.
For example, the electrolyte may be made up by mixing 48 parts of ammonium linoleate, 30 parts stearic acid and 23 parts of oleic acid. to constitute a thick mass which is sufficiently fluid at ordinary temperatures for application without heating, and which is sufliciently solid to be held in position between the condenser armatures or plates, a suitable separator being usually employed.
Other ammonium soap mixtures may be em- 25 ployed with satisfactory results, and the oleic acid may be omitted if desired, in which case the electrolyte should be heated before application. In general the concentration of fatty acids and the ammonium soap chosen, may be varied to obtain varying degrees of consistency and varying characteristics (particularly on aging) of the condensers.
It is unnecessary that the ammonium soap employed be exceptionally pure since the pressure therein of soaps of other fatty acids or free fatty acids or of water, is not ordinarily objectionable, the water adding to the electrolytic conductivity.
For the above reasons commercial grades of ammonium soap aresatisfactory for the purpose.
Inmakingupacondensertheeleotrolytemsy be applied to lighter starched gauze (otherwise untreated) by a stiff knife, while the gauze is upon a raw aluminum cathode. If is rolled condenser is to be formed an aluminum anode, the surface of which has-been oxidized as known in the art, is placed on top of the gauze and electrolyte and covered with another layer of gauze and electrolyte, the whole then being rolled up to complete the condenser.
A preferred form of condenser employing the electrolyte above described is shown in the accompanying drawing wherein Fig. 1 is a perspective view of the condenser partially unrolled, and Fig. 2 is an enlarged cross-sectional view taken through the condenser along the line 2-2 of Fig. 1.
In the drawing, the numeral 1 designates one electrode with its terminal 2. The other electrode is designated by 3 with its terminal shown at 4. Between the electrodes are layers of gauze 5 and 8 impregnated with the electrolyte.
I claim:
1. An electrolytic condenser of the class described having an armature of the film-forming type, and an electrolyte containing an ammonium soap combined with a fatty acid.
2. An electrolytic condenser of the class described having an armature of the film-forming type, and an electrolyte containing an ammonium soap combined with a mixture of fatty acids.
8. An electrolytic condenser of the class described having an armature of the film-forming type, and an electrolyte containing an ammonium linoleate and stearic acid.
4. An electrolytic condenser of the class described having an armature of the film-forming type, and an electrolyte containing an ammonium soap combined with stearlc acid.
)[ILTON BERGB'I'EIN.
CERTlFlCATE 0F CORRECTION.
Patent No. 1,951,720. March 20, 1934.
MILTON BERGSTEIN.
lt is hereby certified that error appears in the printed specification of the above numbered patent requiring correction as follows: Page 1, line 34, for "pressure" read presence; and line 56, for "lighter" read lightly; and that the said Letters Patent should be read with these corrections therein that the same may conform to the record of the case in the Patent Office.
Signed and sealed this 24th day of April, A. D. 1934.
Br;an M. Battey (Seal) Acting Commissioner of Patents.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US538399A US1951720A (en) | 1931-05-18 | 1931-05-18 | Electrolytic condenser |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US538399A US1951720A (en) | 1931-05-18 | 1931-05-18 | Electrolytic condenser |
Publications (1)
Publication Number | Publication Date |
---|---|
US1951720A true US1951720A (en) | 1934-03-20 |
Family
ID=24146773
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US538399A Expired - Lifetime US1951720A (en) | 1931-05-18 | 1931-05-18 | Electrolytic condenser |
Country Status (1)
Country | Link |
---|---|
US (1) | US1951720A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1988006344A1 (en) * | 1987-02-20 | 1988-08-25 | Colgate-Palmolive Company | A nonisotropic solution polarizable material and electrical components produced therefrom |
US4878150A (en) * | 1987-02-20 | 1989-10-31 | Colgate-Palmolive Co. | Polarizable material having a liquid crystal microstructure and electrical components produced therefrom |
US5206797A (en) * | 1987-02-20 | 1993-04-27 | Colgate-Palmolive Company | Nonisotropic solution polarizable material and electrical components produced therefrom |
-
1931
- 1931-05-18 US US538399A patent/US1951720A/en not_active Expired - Lifetime
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1988006344A1 (en) * | 1987-02-20 | 1988-08-25 | Colgate-Palmolive Company | A nonisotropic solution polarizable material and electrical components produced therefrom |
US4878150A (en) * | 1987-02-20 | 1989-10-31 | Colgate-Palmolive Co. | Polarizable material having a liquid crystal microstructure and electrical components produced therefrom |
JPH04500135A (en) * | 1987-02-20 | 1992-01-09 | コルゲート・パーモリブ・カンパニー | Anisotropic solution-based polarizable materials and electrical components made therefrom |
US5206797A (en) * | 1987-02-20 | 1993-04-27 | Colgate-Palmolive Company | Nonisotropic solution polarizable material and electrical components produced therefrom |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US2836776A (en) | Capacitor | |
GB396891A (en) | The manufacture of electrical conductors | |
US1951720A (en) | Electrolytic condenser | |
US1815768A (en) | Electrolyte | |
US2838591A (en) | Primary cell | |
US1710073A (en) | Electrical condenser | |
US2165091A (en) | Electric capacitor and compositions therefor | |
US2193711A (en) | Electrolytic device | |
US2021455A (en) | Electrolytic condenser | |
US2220887A (en) | Electrolytic condenser | |
US1829178A (en) | Electrolyte for electrolytic condensers | |
US1973602A (en) | Electrolytic condenser containing monoethanolamine | |
US1950352A (en) | Condenser | |
US2199447A (en) | Electrolytic condenser | |
US1973544A (en) | Condenser | |
US2149086A (en) | Electrical capacttor | |
US2039154A (en) | Electrolytic condenser | |
US1997562A (en) | Electrolytic condenser | |
US2043038A (en) | Anode for electrolytic condensers | |
US2224150A (en) | Electrolytic condenser | |
US2168156A (en) | Capacitor composition | |
US1990274A (en) | Polarizing electrolyte | |
US2165090A (en) | Resinous compositions and capacitors containing the same | |
US1891345A (en) | Electrical condenser | |
US1924711A (en) | Electrical condenser |