DE1098101B - Operating electrolyte for a tantalum electrolytic capacitor - Google Patents
Operating electrolyte for a tantalum electrolytic capacitorInfo
- Publication number
- DE1098101B DE1098101B DEST10402A DEST010402A DE1098101B DE 1098101 B DE1098101 B DE 1098101B DE ST10402 A DEST10402 A DE ST10402A DE ST010402 A DEST010402 A DE ST010402A DE 1098101 B DE1098101 B DE 1098101B
- Authority
- DE
- Germany
- Prior art keywords
- electrolytic capacitor
- tantalum electrolytic
- operating electrolyte
- tantalum
- electrolyte
- 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.)
- Pending
Links
- 239000003990 capacitor Substances 0.000 title claims description 16
- 239000003792 electrolyte Substances 0.000 title claims description 10
- 229910052715 tantalum Inorganic materials 0.000 title claims description 10
- GUVRBAGPIYLISA-UHFFFAOYSA-N tantalum atom Chemical compound [Ta] GUVRBAGPIYLISA-UHFFFAOYSA-N 0.000 title claims description 10
- NLKNQRATVPKPDG-UHFFFAOYSA-M potassium iodide Chemical compound [K+].[I-] NLKNQRATVPKPDG-UHFFFAOYSA-M 0.000 claims description 18
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 2
- 229920006395 saturated elastomer Polymers 0.000 claims description 2
- 239000000243 solution Substances 0.000 description 4
- ZCYVEMRRCGMTRW-UHFFFAOYSA-N 7553-56-2 Chemical compound [I] ZCYVEMRRCGMTRW-UHFFFAOYSA-N 0.000 description 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 2
- 238000000354 decomposition reaction Methods 0.000 description 2
- 229910052740 iodine Inorganic materials 0.000 description 2
- 239000011630 iodine Substances 0.000 description 2
- PQXKHYXIUOZZFA-UHFFFAOYSA-M lithium fluoride Chemical compound [Li+].[F-] PQXKHYXIUOZZFA-UHFFFAOYSA-M 0.000 description 2
- 239000002250 absorbent Substances 0.000 description 1
- 230000002745 absorbent Effects 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- KGBXLFKZBHKPEV-UHFFFAOYSA-N boric acid Chemical compound OB(O)O KGBXLFKZBHKPEV-UHFFFAOYSA-N 0.000 description 1
- 239000004327 boric acid Substances 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 239000008151 electrolyte solution Substances 0.000 description 1
- XMBWDFGMSWQBCA-UHFFFAOYSA-N hydrogen iodide Chemical compound I XMBWDFGMSWQBCA-UHFFFAOYSA-N 0.000 description 1
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 150000005846 sugar alcohols Polymers 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 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)
- Fixed Capacitors And Capacitor Manufacturing Machines (AREA)
Description
Betriebselektrolyt für einen Tantal-Elektrolytkondensator Die bekannten elektrolytischen Kondensatoren bestehen üblicherweise aus einem Paar von Elektroden, die beispielsweise durch eine aufsaugfähige Schicht, wie z. B. Papier od. dgl., voneinander getrennt sind. Mindestens eine Elektrode dieser Kondensatoren bildet unter Einwirkung des Elektrolyten und des elektrischen Stromes einen dielektrischen Fiten. Solche Elektroden bestehen z. B. aus Aluminium oder Tantal. Tantalelektroden werden meistens als Sinterkörper ausgebildet. Bei Elektrolytkondensatoren mit Sinterelektrode ist eine Trennschicht zum Aufsaugen des Elektrolyten nicht erforderlich.Operating electrolyte for a tantalum electrolytic capacitor The well-known Electrolytic capacitors usually consist of a pair of electrodes, which, for example, by an absorbent layer, such as. B. paper or the like, are separated from each other. Forms at least one electrode of these capacitors under the action of the electrolyte and the electric current a dielectric Fit. Such electrodes consist e.g. B. made of aluminum or tantalum. Tantalum electrodes are mostly designed as sintered bodies. For electrolytic capacitors with sintered electrodes a separating layer for absorbing the electrolyte is not required.
Als Elektrolyte für die genannten Kondensatoren werden vorzugsweise solche benutzt, die mehrwertigen Alkohol (wie z. B. Glykol), Borsäure, Ammoniak od. dgl. enthalten.The preferred electrolytes for the capacitors mentioned are those used, the polyhydric alcohol (such as glycol), boric acid, ammonia or the like. Included.
Die elektrolytische Lösung, die als Leiter für den elektrischen Strom zu der nicht mit einem dielektrischen Film überzogenen Elektrode dient, verursacht auf Grund ihres kleinen Leitwertes beträchtliche elektrische Verluste, die sich in Wärme umsetzen und einen niedrigeren Leistungsfaktor des Kondensators zur Folge haben.The electrolytic solution that acts as a conductor for electric current to the electrode not coated with a dielectric film Considerable electrical losses due to their low conductance convert into heat and result in a lower power factor of the capacitor to have.
Bei der Herstellung von Elektrolytkondensatoren, insbesondere Tantal-Elektrolytkondensatoren, ist sowohl ein guter Verlustfaktor als auch ein kleiner Reststrom erwünscht. Die oben beschriebenen Elektrolyte weisen jedoch meistens nur einen der beiden genannten Vorzüge auf und sind deshalb unvollkommen.In the manufacture of electrolytic capacitors, especially tantalum electrolytic capacitors, Both a good dissipation factor and a small residual current are desirable. the However, the above-described electrolytes usually only have one of the two mentioned Advantages and are therefore imperfect.
Erfindungsgemäß wird nun eine wäßrige Kaliumjodidlösung als Betriebselektrolyt eines Tantal-Elektrolytkondensators verwendet, da diese die geforderten Eigenschaften aufweist. So erzielt man beispielsweise mit einer bei 20°C gesättigten wäßrigen Kaliumjodidlösung in Tantal-Elektrolytkondensatoren einen Verlustfaktor von 1 % für 70-V-Kondensatoren und einen Reststrom von - 1 V.A für 20 #tF.According to the invention, an aqueous potassium iodide solution is now used as the operating electrolyte of a tantalum electrolytic capacitor is used because it has the required properties having. For example, an aqueous solution which is saturated at 20 ° C. is used Potassium iodide solution in tantalum electrolytic capacitors has a loss factor of 1% for 70 V capacitors and a residual current of - 1 V.A for 20 #tF.
Allgemein zeichnet sich eine Kaliumjodidlösung gegenüber anderen Elektrolyten dadurch aus, daß ihre Zersetzungsspannung so niedrig liegt, daß eine Zersetzung des Wassers und damit Gasbildung nicht eintritt. Gegenüber Lithiumfluorid besitzt Kaliumjodid außerdem den Vorteil, nicht hygroskopisch zu sein. Um das im geringen Maße eventuell frei werdende Jod zu binden, wird der jodidlösung zweckmäßigerweise gemäß einem weiteren Merkmal der Erfindung eine geringe Menge eines Alkohols zugesetzt, wodurch eine eventuell nachteilige Beeinflussung der Eigenschaft des Kondensators durch das Jod vermieden wird.In general, a potassium iodide solution stands out over other electrolytes characterized in that their decomposition voltage is so low that decomposition occurs of the water and thus gas formation does not occur. Opposite lithium fluoride possesses Potassium iodide also has the advantage of not being hygroscopic. To that in the slightest The iodide solution is useful for binding any iodine that may be released according to a further feature of the invention, a small amount of an alcohol is added, thereby possibly adversely affecting the properties of the capacitor is avoided by iodine.
Claims (3)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEST10402A DE1098101B (en) | 1955-10-08 | 1955-10-08 | Operating electrolyte for a tantalum electrolytic capacitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEST10402A DE1098101B (en) | 1955-10-08 | 1955-10-08 | Operating electrolyte for a tantalum electrolytic capacitor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE1098101B true DE1098101B (en) | 1961-01-26 |
Family
ID=7455096
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DEST10402A Pending DE1098101B (en) | 1955-10-08 | 1955-10-08 | Operating electrolyte for a tantalum electrolytic capacitor |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE1098101B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1694653A (en) * | 1922-10-14 | 1928-12-11 | Hall Res Corp | Electrolyte and electrolytic apparatus |
| US1891206A (en) * | 1927-06-22 | 1932-12-13 | Ruben Condenser Company | Polarized electrolytic couple |
| US1989622A (en) * | 1931-08-29 | 1935-01-29 | Ergon Res Lab Inc | Condenser and method of constructing the same |
| US2013564A (en) * | 1931-08-29 | 1935-09-03 | Ergon Res Lab Inc | Electrolytic condenser |
| US2368688A (en) * | 1943-01-21 | 1945-02-06 | Bell Telephone Labor Inc | Electrolytic device |
-
1955
- 1955-10-08 DE DEST10402A patent/DE1098101B/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1694653A (en) * | 1922-10-14 | 1928-12-11 | Hall Res Corp | Electrolyte and electrolytic apparatus |
| US1891206A (en) * | 1927-06-22 | 1932-12-13 | Ruben Condenser Company | Polarized electrolytic couple |
| US1989622A (en) * | 1931-08-29 | 1935-01-29 | Ergon Res Lab Inc | Condenser and method of constructing the same |
| US2013564A (en) * | 1931-08-29 | 1935-09-03 | Ergon Res Lab Inc | Electrolytic condenser |
| US2368688A (en) * | 1943-01-21 | 1945-02-06 | Bell Telephone Labor Inc | Electrolytic device |
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