US1661703A - Electrolytic rectifier - Google Patents
Electrolytic rectifier Download PDFInfo
- Publication number
- US1661703A US1661703A US127707A US12770726A US1661703A US 1661703 A US1661703 A US 1661703A US 127707 A US127707 A US 127707A US 12770726 A US12770726 A US 12770726A US 1661703 A US1661703 A US 1661703A
- Authority
- US
- United States
- Prior art keywords
- acid
- electrode
- electrolytic
- electrolyte
- rectifier
- 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
- 239000002253 acid Substances 0.000 description 11
- 239000003792 electrolyte Substances 0.000 description 8
- 230000005484 gravity Effects 0.000 description 8
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 3
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical group OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 3
- 238000007792 addition Methods 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 229910052710 silicon Inorganic materials 0.000 description 3
- 239000010703 silicon Substances 0.000 description 3
- 235000011149 sulphuric acid Nutrition 0.000 description 3
- 239000001117 sulphuric acid Substances 0.000 description 3
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 2
- 229910000676 Si alloy Inorganic materials 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000006866 deterioration Effects 0.000 description 1
- 239000012153 distilled water Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 235000011187 glycerol Nutrition 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
Images
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
- H01G9/004—Details
- H01G9/022—Electrolytes; Absorbents
Definitions
- the present invention relates to electro- -lytic rectitiers. l
- the principal object of the present invention is to provide an electrolytic rectier adapted particularly for battery charging in which the life ot the rectiliying electrode is prolonged so that replacements and repairs are reduced to a minimum.
- a further object is to provide in an electrolytic rectifier an electrolyte wherein the necessity vfor the frequent additions ot liquid as, tor instance, distilled water, is obviated.
- a further object of the invention is to provide in an electrolytic rectifier having a cathode of silicon or silicon alloy in an acid electrolyte, by the use of which the life of the electrode is prolonged indefinitely. ln the drawing the' ligure is aseCtiOnal view of an electrolytic rectifier constructed in accordance with this invention.
- the desired viscosity may be obtained either by -the addition of a liquid of approximately the same specific gravity as the electrolyte as, tor instance, glycerine, or by the preferred method of employing an acid electrolyte of high specific gravity; that is, sulphuric acid of not less than 1300 specic gravity, such high gravity acid being of viscous consistency.
- an electrolytic rectilier in combination with an electrode containing silicon, an acid electrolyte comprising sulphuric acid of from 9U
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Secondary Cells (AREA)
Description
March 6, 1928.
C.E.QGDEN ELEcTRoLYc RECTIFIER Filed Aug. 6. 1926 ldatented Mar. 6, 1928.
UNITED STATES PATENT OFFICE..
CLARENCE E. OGDEN, OF CNGINNAT-I, OHIG, ASSIGNOR TO THE KDEL RADIO COR- PORATION, A CORPORATON @F OHIG.
ELECTROLYTIC RECTIFIER.
Application tiled August 6, 1926.
The present invention relates to electro- -lytic rectitiers. l
The principal object of the present invention is to provide an electrolytic rectier adapted particularly for battery charging in which the life ot the rectiliying electrode is prolonged so that replacements and repairs are reduced to a minimum.
A further object is to provide in an electrolytic rectifier an electrolyte wherein the necessity vfor the frequent additions ot liquid as, tor instance, distilled water, is obviated.
A further object of the invention is to provide in an electrolytic rectifier having a cathode of silicon or silicon alloy in an acid electrolyte, by the use of which the life of the electrode is prolonged indefinitely. ln the drawing the' ligure is aseCtiOnal view of an electrolytic rectifier constructed in accordance with this invention.
In electrolytic rectitiers wherein acid is employed as an electrolyte and silicon or a silicon alloy is used for the rectiifying electrodc, l have found that where-the surface ot the electrode is not smooth, but is permeated with sand holes or depressions causing numerous sharp points or inequalities in the electrode surface, by the employment of the ordinary acid, that is sulphuric acid of approximately 1250 specific gravity, the electrode is attached at said points and a'l'ter a comparatively short period of use the electrode is worn through and breaks, thus requiring replacement before the rectifier can again he used. This dilliculty is not experienced where the surface of the electrode is smooth. The fault is caused, according to my observation, not by reason of the acid attacking the metal, but because of the brealting ot the rectitying film at the numerous sharp points on the surface of the electrode, thus permitting the current to burn and disintegrate the metal, resulting` in ultimate fracture. By the use of an electrolyte of a considerable degree of viscosity, however, l have found that the rectitying film is appar- Serial No. 127,707.
ently of increased tensibility so that the sameV is not fractured at or by the points on the surface of the electrode, and the metal is thus protected from the disintegrating effect of the passage ot current at such points, and rapid deterioration of the electrode is obviated.
In carrying out the present invention I have found that the desired viscosity may be obtained either by -the addition of a liquid of approximately the same specific gravity as the electrolyte as, tor instance, glycerine, or by the preferred method of employing an acid electrolyte of high specific gravity; that is, sulphuric acid of not less than 1300 specic gravity, such high gravity acid being of viscous consistency.
By numeroustests and experiments over a long period of time, I have found that the use kot high gravity acid permits the use of electrodes of the character mentioned whether the same arev snperficially smooth or rough, there being apparently no diference in the durability of the respective elec, trodes 1n such acid, whereas whenacid of.
low speciiic gravity is used in accordance with the practice heretofore obtaining, while the lower resistance gives a slightly greater ioiv ot current, the electrodes unless approximately. smooth are practically valueless for the reason that they must be replaced at extremely short intervals by reason of the disintegration above mentioned. Furthermore, where high gravity acid is used it will loe understood that the lack of Water in the acid results in a much slower disintegration of the electrolyte and there fore requires less frequent additions thereto.
Having thus fully described my invention, what I claim as new and desire to secure by Letters Patent is:
ln an electrolytic rectilier, in combination with an electrode containing silicon, an acid electrolyte comprising sulphuric acid of from 9U
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US127707A US1661703A (en) | 1926-08-06 | 1926-08-06 | Electrolytic rectifier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US127707A US1661703A (en) | 1926-08-06 | 1926-08-06 | Electrolytic rectifier |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US1661703A true US1661703A (en) | 1928-03-06 |
Family
ID=22431530
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US127707A Expired - Lifetime US1661703A (en) | 1926-08-06 | 1926-08-06 | Electrolytic rectifier |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US1661703A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3139568A (en) * | 1960-11-08 | 1964-06-30 | Nippon Electric Co | Capacitor having a semi-conductive dielectric layer |
-
1926
- 1926-08-06 US US127707A patent/US1661703A/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3139568A (en) * | 1960-11-08 | 1964-06-30 | Nippon Electric Co | Capacitor having a semi-conductive dielectric layer |
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