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GB1181556A - Improvements relating to Electrolytic Capacitors. - Google Patents

Improvements relating to Electrolytic Capacitors.

Info

Publication number
GB1181556A
GB1181556A GB3944167A GB3944167A GB1181556A GB 1181556 A GB1181556 A GB 1181556A GB 3944167 A GB3944167 A GB 3944167A GB 3944167 A GB3944167 A GB 3944167A GB 1181556 A GB1181556 A GB 1181556A
Authority
GB
United Kingdom
Prior art keywords
foil
electrolytic capacitors
improvements relating
sept
heading
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
GB3944167A
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.)
Philips Electronics UK Ltd
Original Assignee
Philips Electronic and Associated Industries Ltd
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 Electronic and Associated Industries Ltd filed Critical Philips Electronic and Associated Industries Ltd
Publication of GB1181556A publication Critical patent/GB1181556A/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)
  • Electroplating Methods And Accessories (AREA)
  • ing And Chemical Polishing (AREA)
  • Other Surface Treatments For Metallic Materials (AREA)
  • Fixed Capacitors And Capacitor Manufacturing Machines (AREA)

Abstract

1,181,556. Electrolytic capacitors. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. 29 Aug., 1967 [1 Sept., 1966], No. 39441/67. Heading H1M. [Also in Division C7] 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.
GB3944167A 1966-09-01 1967-08-29 Improvements relating to Electrolytic Capacitors. Expired GB1181556A (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
GB1181556A true GB1181556A (en) 1970-02-18

Family

ID=19797541

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3944167A Expired GB1181556A (en) 1966-09-01 1967-08-29 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)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2164058A (en) * 1984-09-04 1986-03-12 Sprague Electric Co A process for making low-voltage aluminium foil for electrolytic capacitor electrodes

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2164058A (en) * 1984-09-04 1986-03-12 Sprague Electric Co A process for making low-voltage aluminium foil for electrolytic capacitor electrodes

Also Published As

Publication number Publication date
ES344598A1 (en) 1968-10-16
SE332230B (en) 1971-02-01
DE1614274A1 (en) 1970-05-27
NL6612322A (en) 1968-03-04
AT281218B (en) 1970-05-11
CH508976A (en) 1971-06-15

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