DE589321C - Solid electrolytic capacitor - Google Patents
Solid electrolytic capacitorInfo
- Publication number
- DE589321C DE589321C DES91918D DES0091918D DE589321C DE 589321 C DE589321 C DE 589321C DE S91918 D DES91918 D DE S91918D DE S0091918 D DES0091918 D DE S0091918D DE 589321 C DE589321 C DE 589321C
- Authority
- DE
- Germany
- Prior art keywords
- electrolytic capacitor
- solid electrolytic
- electrolyte
- acid ammonium
- phosphoric acid
- 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 claims description 10
- 239000007787 solid Substances 0.000 title claims description 5
- 239000003792 electrolyte Substances 0.000 claims description 6
- 239000000126 substance Substances 0.000 claims description 5
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 claims description 4
- NLHGXWMZNSTKEA-UHFFFAOYSA-N azane;phosphoric acid;propane-1,2,3-triol Chemical compound N.OP(O)(O)=O.OCC(O)CO NLHGXWMZNSTKEA-UHFFFAOYSA-N 0.000 claims description 4
- 239000000203 mixture Substances 0.000 claims description 3
- 235000011187 glycerol Nutrition 0.000 claims description 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 claims 1
- 239000002253 acid Substances 0.000 claims 1
- 239000007788 liquid Substances 0.000 description 2
- 239000000654 additive Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
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
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)
Description
Trockenelektrolyt-Kondensator Es sind Elektrolyt-Kondensatoren bekannt, bei welchen Metallelektroden in einer Flüssigkeit angeordnet sind. Es ist auch bekannt, diese Kondensatoren so abzuändern, daß sie verschlossen werden und als Einbauelemente verwendet werden können. Zu diesem Zweck wird eine zähflüssige Flüssigkeit oder Paste als Elektrolyt verwendet. Bei dieser Ausführungsform, welche als Trockenelektrolyt-Kondensator bezeichnet wird, sind bereits verschiedene wirksame Chemikalien zur Anwendung gekommen. Die Wahl dieser und der dazu erforderlichen Lösungsmittel und etwaiger Zusätze, welche den Zweck haben, den Elektrolyt möglichst unbeweglich zu erhalten, macht erhebliche Schwierigkeiten, da gleichzeitig eine große Anzahl anderer. Forderungen gestellt werden. Es soll z. B. beim Anschalten einer Gleichspannung an solche Kondensatoren ein möglichst geringer Verluststrom durch diese fließen. Ferner soll die Kapazität pro Flächeneinheit möglichst groß sein und eine genügende Haltbarkeit erzielt werden. Letztere bedingt z. B. die Anwendung einer Elektrolytmasse, die nur sehr geringe Neigung zur Verdunstung hat. Ferner wird beispielsweise die Forderung gestellt, daß die verwendeten Chemikalien nicht auskristallisieren, weil dadurch Störungen in der Größe der Kapazität eintreten können.Solid electrolytic capacitor Electrolytic capacitors are known in which metal electrodes are arranged in a liquid. It is also known to modify these capacitors so that they are closed and as built-in elements can be used. For this purpose, a viscous liquid or Paste used as an electrolyte. In this embodiment, which is a solid electrolytic capacitor various effective chemicals have been used. The choice of these and the solvents required for them and any additives, which have the purpose of keeping the electrolyte as immobile as possible considerable difficulties, as there are a large number of others at the same time. requirements be asked. It should z. B. when connecting a DC voltage to such capacitors the lowest possible leakage current flow through them. Furthermore, the capacity be as large as possible per unit area and achieve sufficient durability. The latter requires z. B. the application of an electrolyte mass that is very low Has a tendency to evaporate. Furthermore, for example, the requirement is made, that the chemicals used do not crystallize out because this causes disturbances can occur in the size of the capacity.
Es hat sich gezeigt, daß Ammonium-Glycerin-Phosphorsäure vorzüglich zu diesem Zweck geeignet ist. Diese Substanz wird z. B. mit einem Ü"berschuß von Glycerin als zähflüssige Masse zwischen die Kondensatorelektroden gebracht, indem beispielsweise Papierlagen, die sich zwischen den Elektroden befinden, damit getränkt werden. Das Wesen der Erfindung besteht also darin, daß die wirksame Elektrolytsubstanz in ihrer Zusammensetzung derjenigen einer Lösung von glycerinphosphorsaurem Ammonium entspricht.It has been shown that ammonium-glycerol-phosphoric acid is excellent is suitable for this purpose. This substance is z. B. with an excess of Glycerine placed as a viscous mass between the capacitor electrodes by adding For example, paper layers that are located between the electrodes, soaked with it will. The essence of the invention is that the effective electrolyte substance in their composition that of a solution of glycerol phosphoric acid ammonium is equivalent to.
Mit diesem glycerinphosphorsauren Ammonium hergestellte Kondensatoren zeigen verhältnismäßig sehr hohe Kapazität pro Flächeneinheit und gleichzeitig sehr hohen Verlustwiderstand, so daß der Verlust bei gegebener Spannung verhältnismäßig sehr gering ist. Auch bei länger dauernder Außerbetriebsetzung sinkt der Widerstand gegen Gleichspannung verhältnismäßig wenig, und der ursprüngliche Zustand wird bei Inbetriebnahme immer schnell wieder erreicht. Die Verdunstung eines solchen Elektrolyten ist äußerst gering, so daß auch in dieser Richtung eine gute Haltbarkeit gewährleistet ist.Capacitors made with this glycerol phosphoric acid ammonium show relatively very high capacity per unit area and at the same time very high loss resistance, so that the loss for a given voltage is proportionate is very low. The resistance also decreases when it is not used for a longer period of time to DC voltage comparatively little, and the original state is at Start-up achieved again and again quickly. The evaporation of such an electrolyte is extremely small, so that good durability is also guaranteed in this direction is.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DES91918D DE589321C (en) | 1929-05-29 | 1929-05-29 | Solid electrolytic capacitor |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DES91918D DE589321C (en) | 1929-05-29 | 1929-05-29 | Solid electrolytic capacitor |
Publications (1)
Publication Number | Publication Date |
---|---|
DE589321C true DE589321C (en) | 1933-12-06 |
Family
ID=7516838
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DES91918D Expired DE589321C (en) | 1929-05-29 | 1929-05-29 | Solid electrolytic capacitor |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE589321C (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE767588C (en) * | 1934-11-08 | 1952-11-24 | Radio Patents Corp | Electrolytic capacitor |
-
1929
- 1929-05-29 DE DES91918D patent/DE589321C/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE767588C (en) * | 1934-11-08 | 1952-11-24 | Radio Patents Corp | Electrolytic capacitor |
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