GB2011716A - Improvements in or relating to electrolytic capacitors - Google Patents

Improvements in or relating to electrolytic capacitors

Info

Publication number
GB2011716A
GB2011716A GB7849340A GB7849340A GB2011716A GB 2011716 A GB2011716 A GB 2011716A GB 7849340 A GB7849340 A GB 7849340A GB 7849340 A GB7849340 A GB 7849340A GB 2011716 A GB2011716 A GB 2011716A
Authority
GB
United Kingdom
Prior art keywords
foil
increase
relating
tantalum
electrolytic capacitors
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.)
Withdrawn
Application number
GB7849340A
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.)
Siemens AG
Original Assignee
Siemens AG
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 Siemens AG filed Critical Siemens AG
Publication of GB2011716A publication Critical patent/GB2011716A/en
Withdrawn legal-status Critical Current

Links

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
    • H01G9/04—Electrodes or formation of dielectric layers thereon
    • H01G9/042—Electrodes or formation of dielectric layers thereon characterised by the material
    • H01G9/045—Electrodes or formation of dielectric layers thereon characterised by the material based on aluminium

Abstract

In an electrolytic capacitor comprising wound layers of an anode foil, which may, if desired, be roughened, and which is provided with a dielectrically- active oxide layer, a cathode foil, and one or more spacers saturated with an operating electrolyte; the anode foil is aluminium coated with a thin film of tantalum and is thereafter formed. This leads to an increase in the corrosion resistance of the foil and to an increase in the capacitance density. The tantalum film may be produced by cathode sputtering, preferably using a magnetic field in a continuous process.
GB7849340A 1977-12-27 1978-12-20 Improvements in or relating to electrolytic capacitors Withdrawn GB2011716A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19772758155 DE2758155A1 (en) 1977-12-27 1977-12-27 METHOD OF MANUFACTURING AN ELECTROLYTE CONDENSER

Publications (1)

Publication Number Publication Date
GB2011716A true GB2011716A (en) 1979-07-11

Family

ID=6027379

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7849340A Withdrawn GB2011716A (en) 1977-12-27 1978-12-20 Improvements in or relating to electrolytic capacitors

Country Status (4)

Country Link
JP (1) JPS5496762A (en)
DE (1) DE2758155A1 (en)
FR (1) FR2413767A1 (en)
GB (1) GB2011716A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5405493A (en) * 1994-01-26 1995-04-11 Kdk Corporation Method of etching aluminum foil
CN113745007A (en) * 2021-08-24 2021-12-03 西安交通大学 Electrochemical corrosion dilatation process of anode foil of tantalum electrolytic capacitor

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH061751B2 (en) * 1985-07-12 1994-01-05 昭和アルミニウム株式会社 Anode material for electrolytic capacitors
JPS6279610A (en) * 1985-10-03 1987-04-13 日通工株式会社 Anode for electrolytic condenser

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB656635A (en) * 1949-01-04 1951-08-29 Dubilier Condenser Co 1925 Ltd Improvements in or relating to electrolytic condensers
FR1189974A (en) * 1956-10-11 1959-10-08 Thomson Houston Comp Francaise Improvements in the manufacture of electrolytic capacitors
US3256468A (en) * 1962-04-17 1966-06-14 Gen Electric Electrode for electrical capacitors and method of making the same

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5405493A (en) * 1994-01-26 1995-04-11 Kdk Corporation Method of etching aluminum foil
CN113745007A (en) * 2021-08-24 2021-12-03 西安交通大学 Electrochemical corrosion dilatation process of anode foil of tantalum electrolytic capacitor

Also Published As

Publication number Publication date
JPS5496762A (en) 1979-07-31
DE2758155A1 (en) 1979-06-28
FR2413767A1 (en) 1979-07-27

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Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)