DE1123400B - Electrolytic capacitor, in particular tantalum capacitor - Google Patents

Electrolytic capacitor, in particular tantalum capacitor

Info

Publication number
DE1123400B
DE1123400B DER23305A DER0023305A DE1123400B DE 1123400 B DE1123400 B DE 1123400B DE R23305 A DER23305 A DE R23305A DE R0023305 A DER0023305 A DE R0023305A DE 1123400 B DE1123400 B DE 1123400B
Authority
DE
Germany
Prior art keywords
capacitor
patent nos
particular tantalum
electrolyte
electrolytic
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
Application number
DER23305A
Other languages
German (de)
Inventor
Dr Paul J Petrik
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ROEDERSTEIN KONDENSATOREN
Ernst Roederstein Spezialfabrik fuer Kondensatoren GmbH
Original Assignee
ROEDERSTEIN KONDENSATOREN
Ernst Roederstein Spezialfabrik fuer Kondensatoren GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by ROEDERSTEIN KONDENSATOREN, Ernst Roederstein Spezialfabrik fuer Kondensatoren GmbH filed Critical ROEDERSTEIN KONDENSATOREN
Priority to DER23305A priority Critical patent/DE1123400B/en
Publication of DE1123400B publication Critical patent/DE1123400B/en
Pending legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01GCAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES OR LIGHT-SENSITIVE DEVICES, OF THE ELECTROLYTIC TYPE
    • H01G9/00Electrolytic capacitors, rectifiers, detectors, switching devices, light-sensitive or temperature-sensitive devices; Processes of their manufacture
    • H01G9/004Details
    • H01G9/022Electrolytes; Absorbents

Description

Elektrolytkondensator, insbesondere Tantalkondensator Die Erfindung betrifft Elektrolytkondensatoren, insbesondere Tantalkondensatoren, deren Elektrolyt als Depolarisator ein Kupfersalz enthält.Electrolytic capacitor, in particular tantalum capacitor The invention relates to electrolytic capacitors, in particular tantalum capacitors, their electrolyte contains a copper salt as a depolarizer.

Als Zusatzstoffe wurden bisher Ag,SO, und CuS04 für schwefelsäurehaltige Elektrolyte und Eisenchloride für chlorionenhaltige Elektrolyte verwendet.So far, Ag, SO and CuS04 have been used as additives for those containing sulfuric acid Electrolytes and iron chlorides used for electrolytes containing chlorine ions.

FeCl. oder FeCI.= in chlorionenhaltigem Elektrolyten haben den Nachteil, daß bei relativ niedriger Spannung ein Angriff auf das Dielektrikum Tantaloxyd erfolgt, der einen elektrischen Durchschlag zur Folge haben kann. Kondensatoren mit mehr als etwa 15 V Nennspannung sind daher kaum herstellbar.FeCl. or FeCl. = in electrolytes containing chlorine ions have the disadvantage that the dielectric tantalum oxide is attacked at a relatively low voltage, which can cause an electrical breakdown. Capacitors with more a nominal voltage of about 15 V can therefore hardly be produced.

Bei Verwendung von Ag2S0, bzw. CuSO4 in schwefelsaurer Lösung wird keine vollständige Beseitigung der Wechselspannungsabhängigkeit von Kapazität und Verlustfaktor erzielt, da bei der wegen der auch bei tieferen Temperaturen erforderlichen hohen Leitfähigkeit des Elektrolyten verwendeten hohen Säurekonzentration die Löslichkeit der Zusätze zu gering ist, um noch ausreichend depolarisierend zu wirken.When using Ag2S0 or CuSO4 in sulfuric acid solution does not completely eliminate the AC voltage dependency of capacitance and Loss factor achieved because of the necessary because of the lower temperatures high conductivity of the electrolyte, high acid concentration used the solubility of the additives is too small to have a sufficiently depolarizing effect.

Demgegenüber bringt die erfindungsgemäße Verwendung von CuCI._ als Depolarisator in chlorionenhaltiger Lösung für den Elektrolyten entscheidende Vorteile für den Elektrolytkondensator.In contrast, the inventive use of CuCI._ brings as Depolarizer in a solution containing chlorine ions for the electrolyte has decisive advantages for the electrolytic capacitor.

Das folgende Beispiel zeigt die Überlegenheit des CuCl,- haltigen Elektrolyten. Elektrolyt Spannung Kapazität tg b a ung Kapazität tg b V^# @. F °jo V ^. t.z. F °/o 35°/oige H2 S O" mit Agz S O, gesät tigt.......................... 0,02 80 13 0,5 92,4 9 35°/oige H,SO,, mit CuSO, gesät- tigt .......................... 0,02 77 22 0,5 91 16 gesättigte LiCt-Lösung mit 5°/0 Cu Cl z ................. . ..... 0,02 91,4 13 0,5 92,0 12,6 Außerdem sind Elektrolytkondensatoren mit einem Zusatz von CuCl, für höhere Gleichspannungen von etwa 15 bis 85 V verwendbar. Meß- Kapazität tg b Meß- Kapazität tg 8 Elektrolyt Spannung Spannung Bemerkungen V ." l= F O !" N. F "o Gesättigte Li Cl-Lösung mit 511j;2" CU CIZ ....... 0,02 91,4 13 0,5 92 12,6 Anfangswerte 0,02 89,5 19 0,5 89,4 19,2 Endwerte nach 5000 Stun- den Betrieb bei +85°C und der Netzspannung Ein weiterer Vorteil des erfindungsgemäßen Zusatzes ist es, daß auch im Dauerbetrieb des Kondensators sich seine elektrischen Werte nur wenig ändern, wie das vorliegende Beispiel zeigt.The following example shows the superiority of the CuCl, - containing electrolyte. Electrolyte voltage capacity tg b a ung capacity tg b V ^ # @. F ° jo V ^. tz F ° / o 35% H2 SO "with Agz SO, sown tigt .......................... 0.02 80 13 0.5 92.4 9 35% H, SO ,, with CuSO, seeded tigt .......................... 0.02 77 22 0.5 91 16 saturated LiCt solution with 5 ° / 0 Cu Cl z .................. ..... 0.02 91.4 13 0.5 92.0 12.6 In addition, electrolytic capacitors with an addition of CuCl can be used for higher DC voltages of around 15 to 85 V. Measuring capacity tg b measuring capacity tg 8 Electrolyte Voltage Voltage Remarks V. "L = F O !" N. F " o Saturated Li Cl solution with 511j; 2 " CU CIZ ....... 0.02 91.4 13 0.5 92 12.6 initial values 0.02 89.5 19 0.5 89.4 19.2 Final values after 5000 hours operation at + 85 ° C and the mains voltage Another advantage of the additive according to the invention is that its electrical values change only slightly even in continuous operation of the capacitor, as the present example shows.

Claims (1)

PATENTANSPRUCH: Elektrolytkondensator, insbesondere Tantalkondensator, dessen Elektrolyt als Depolarisator ein Kupfersalz enthält, dadurch gekennzeichnet, daB Kuprichlorid CuClg in chlorionenhaltiger Lösung verwendet wird. In Betracht gezogene Druckschriften: Deutsche Patentschriften Nr. 718 089, 757 349, 767 690, 922 842, 935 804, 959 935; deutsche Auslegeschrift Nr. 1025 993; französische Patentschriften Nr. 719 664, 1091097; britische Patentschriften Nr. 680 697, 782 818; USA.-Patentschriften Nr. 1706 951, 2 778 979, 2828724. PATENT CLAIM: Electrolytic capacitor, in particular tantalum capacitor, the electrolyte of which contains a copper salt as a depolarizer, characterized in that copper trichloride CuClg is used in a solution containing chlorine ions. Considered publications: German Patent Nos. 718 089, 757 349, 767 690, 922 842, 935 804, 959 935; German Auslegeschrift No. 1025 993; French Patent Nos. 719 664, 1091097; British Patent Nos. 680 697, 782 818; USA. Patent Nos. 1706 951, 2778979, 2828724th
DER23305A 1958-05-10 1958-05-10 Electrolytic capacitor, in particular tantalum capacitor Pending DE1123400B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DER23305A DE1123400B (en) 1958-05-10 1958-05-10 Electrolytic capacitor, in particular tantalum capacitor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DER23305A DE1123400B (en) 1958-05-10 1958-05-10 Electrolytic capacitor, in particular tantalum capacitor

Publications (1)

Publication Number Publication Date
DE1123400B true DE1123400B (en) 1962-02-08

Family

ID=7401380

Family Applications (1)

Application Number Title Priority Date Filing Date
DER23305A Pending DE1123400B (en) 1958-05-10 1958-05-10 Electrolytic capacitor, in particular tantalum capacitor

Country Status (1)

Country Link
DE (1) DE1123400B (en)

Citations (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1706951A (en) * 1924-06-28 1929-03-26 Nat Carbon Co Inc Electrolytic apparatus
FR719664A (en) * 1930-07-24 1932-02-09 Philips Nv Capacitor whose reinforcements and dielectric constitute at least one rectifier cell
DE718089C (en) * 1939-01-14 1942-03-03 Nsf Nuernberger Schraubenfabri Electrolyte for electrolytic capacitors
DE757349C (en) * 1932-05-05 1952-08-21 Radio Patents Corp Electrolyte with additive to keep the viscosity or the power factor constant for electrolytic capacitors
GB680697A (en) * 1951-04-02 1952-10-08 Mallory Batteries Ltd Improvements in casings or enclosures for electric batteries or electrolytic condensers
DE767690C (en) * 1940-03-17 1953-03-30 Siemens & Halske A G Electrolyte for electrolytic capacitors for high voltages
DE922842C (en) * 1937-07-28 1955-01-27 Siemens Ag Electrolyte for electrolytic capacitors
FR1091097A (en) * 1953-04-02 1955-04-06 Western Electric Co Improvements to electric capacitors
DE935804C (en) * 1949-09-20 1955-12-01 Krefft Ag W Process for the formation of a dielectric layer by forming aluminum electrodes, particularly those for electrolytic capacitors
US2778979A (en) * 1955-04-29 1957-01-22 Mallory & Co Inc P R Tantalum electrolytic capacitors with solid depolarizer
DE959935C (en) * 1939-10-10 1957-03-14 Siemens Ag Electrolytic capacitor
GB782818A (en) * 1954-11-16 1957-09-11 Mallory & Co Inc P R Tantalum electrolytic capacitor
DE1025993B (en) * 1952-11-19 1958-03-13 Standard Elektrik Ag Process for regulating the water content of an electrolyte for electrolytic capacitors
US2828724A (en) * 1953-10-08 1958-04-01 Schweizerische Lokomotiv Internal combustion engines of the injection type

Patent Citations (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1706951A (en) * 1924-06-28 1929-03-26 Nat Carbon Co Inc Electrolytic apparatus
FR719664A (en) * 1930-07-24 1932-02-09 Philips Nv Capacitor whose reinforcements and dielectric constitute at least one rectifier cell
DE757349C (en) * 1932-05-05 1952-08-21 Radio Patents Corp Electrolyte with additive to keep the viscosity or the power factor constant for electrolytic capacitors
DE922842C (en) * 1937-07-28 1955-01-27 Siemens Ag Electrolyte for electrolytic capacitors
DE718089C (en) * 1939-01-14 1942-03-03 Nsf Nuernberger Schraubenfabri Electrolyte for electrolytic capacitors
DE959935C (en) * 1939-10-10 1957-03-14 Siemens Ag Electrolytic capacitor
DE767690C (en) * 1940-03-17 1953-03-30 Siemens & Halske A G Electrolyte for electrolytic capacitors for high voltages
DE935804C (en) * 1949-09-20 1955-12-01 Krefft Ag W Process for the formation of a dielectric layer by forming aluminum electrodes, particularly those for electrolytic capacitors
GB680697A (en) * 1951-04-02 1952-10-08 Mallory Batteries Ltd Improvements in casings or enclosures for electric batteries or electrolytic condensers
DE1025993B (en) * 1952-11-19 1958-03-13 Standard Elektrik Ag Process for regulating the water content of an electrolyte for electrolytic capacitors
FR1091097A (en) * 1953-04-02 1955-04-06 Western Electric Co Improvements to electric capacitors
US2828724A (en) * 1953-10-08 1958-04-01 Schweizerische Lokomotiv Internal combustion engines of the injection type
GB782818A (en) * 1954-11-16 1957-09-11 Mallory & Co Inc P R Tantalum electrolytic capacitor
US2778979A (en) * 1955-04-29 1957-01-22 Mallory & Co Inc P R Tantalum electrolytic capacitors with solid depolarizer

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