ES344598A1 - Improvements relating to Electrolytic Capacitors. - Google Patents

Improvements relating to Electrolytic Capacitors.

Info

Publication number
ES344598A1
ES344598A1 ES344598A ES344598A ES344598A1 ES 344598 A1 ES344598 A1 ES 344598A1 ES 344598 A ES344598 A ES 344598A ES 344598 A ES344598 A ES 344598A ES 344598 A1 ES344598 A1 ES 344598A1
Authority
ES
Spain
Prior art keywords
foil
electrolytic capacitors
improvements relating
aluminium
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.)
Expired
Application number
ES344598A
Other languages
Spanish (es)
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.)
Koninklijke Philips NV
Original Assignee
Philips Gloeilampenfabrieken NV
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 Philips Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV
Publication of ES344598A1 publication Critical patent/ES344598A1/en
Expired legal-status Critical Current

Links

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
    • H01G9/0029—Processes of manufacture
    • H01G9/0032—Processes of manufacture formation of the dielectric layer
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25F—PROCESSES FOR THE ELECTROLYTIC REMOVAL OF MATERIALS FROM OBJECTS; APPARATUS THEREFOR
    • C25F3/00—Electrolytic etching or polishing
    • C25F3/02—Etching
    • C25F3/04—Etching of light metals
    • 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
    • H01G9/04—Electrodes or formation of dielectric layers thereon
    • 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
    • H01G9/04—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
    • 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
    • H01G9/04—Electrodes or formation of dielectric layers thereon
    • H01G9/048—Electrodes or formation of dielectric layers thereon characterised by their structure
    • H01G9/055—Etched foil electrodes

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Manufacturing & Machinery (AREA)
  • Electrochemistry (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
  • Fixed Capacitors And Capacitor Manufacturing Machines (AREA)
  • Electroplating Methods And Accessories (AREA)
  • ing And Chemical Polishing (AREA)
  • Other Surface Treatments For Metallic Materials (AREA)

Abstract

Aluminium electrode foil having an enlarged effective surface is produced by a method including electrolytically etching hard aluminium foil. The foil may then be subjected to thermal treatment prior to anodic oxidation thereof. The capacitance of the foil is measured with respect to a platinum-coated silver cathode in the electrolyte in which forming was carried out.
ES344598A 1966-09-01 1967-08-30 Improvements relating to Electrolytic Capacitors. Expired ES344598A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL6612322A NL6612322A (en) 1966-09-01 1966-09-01

Publications (1)

Publication Number Publication Date
ES344598A1 true ES344598A1 (en) 1968-10-16

Family

ID=19797541

Family Applications (1)

Application Number Title Priority Date Filing Date
ES344598A Expired ES344598A1 (en) 1966-09-01 1967-08-30 Improvements relating to Electrolytic Capacitors.

Country Status (7)

Country Link
AT (1) AT281218B (en)
CH (1) CH508976A (en)
DE (1) DE1614274A1 (en)
ES (1) ES344598A1 (en)
GB (1) GB1181556A (en)
NL (1) NL6612322A (en)
SE (1) SE332230B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4537665A (en) * 1984-09-04 1985-08-27 Sprague Electric Company Production of aluminum foil capacitor electrodes

Also Published As

Publication number Publication date
NL6612322A (en) 1968-03-04
DE1614274A1 (en) 1970-05-27
SE332230B (en) 1971-02-01
AT281218B (en) 1970-05-11
GB1181556A (en) 1970-02-18
CH508976A (en) 1971-06-15

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