ES203963A1 - Improvements in or relating to electrolytic capacitors - Google Patents

Improvements in or relating to electrolytic capacitors

Info

Publication number
ES203963A1
ES203963A1 ES0203963A ES203963A ES203963A1 ES 203963 A1 ES203963 A1 ES 203963A1 ES 0203963 A ES0203963 A ES 0203963A ES 203963 A ES203963 A ES 203963A ES 203963 A1 ES203963 A1 ES 203963A1
Authority
ES
Spain
Prior art keywords
current
corrosion
corroded
anodically
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
ES0203963A
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.)
BRITISH DIELECTRIC RES Ltd
Original Assignee
BRITISH DIELECTRIC RES 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 BRITISH DIELECTRIC RES Ltd filed Critical BRITISH DIELECTRIC RES Ltd
Publication of ES203963A1 publication Critical patent/ES203963A1/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
    • H01G9/004—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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Power Engineering (AREA)
  • Organic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Electrochemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Electroplating Methods And Accessories (AREA)
  • ing And Chemical Polishing (AREA)
  • Fixed Capacitors And Capacitor Manufacturing Machines (AREA)
  • Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)

Abstract

A method of increasing the surface area of an aluminum or aluminum alloy body by subjecting it to an electrolytic corrosion process in a suitable electrolyte of the type described in which the corrosion current is a pulsed direct current of high medium density, such being the degree the type and frequency of the pulsation of the current the average density of the current the composition and concentration of the electrolyte and the depth of penetration of the corrosion that the body corroded if it formed anodically subsequently at 500 v. formation voltage would have a substantially greater electrical increase than those exhibited for similarly anodically formed corroded bodies corroded by known electrolytic corrosion processes in which the corrosion current is essentially smoothed direct current. (Machine-translation by Google Translate, not legally binding)
ES0203963A 1951-06-19 1952-06-11 Improvements in or relating to electrolytic capacitors Expired ES203963A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1455951A GB715525A (en) 1951-06-19 1951-06-19 Improvements in or relating to electrolytic capacitors

Publications (1)

Publication Number Publication Date
ES203963A1 true ES203963A1 (en) 1952-07-16

Family

ID=10043417

Family Applications (1)

Application Number Title Priority Date Filing Date
ES0203963A Expired ES203963A1 (en) 1951-06-19 1952-06-11 Improvements in or relating to electrolytic capacitors

Country Status (4)

Country Link
DE (1) DE1151604B (en)
ES (1) ES203963A1 (en)
FR (1) FR1093963A (en)
GB (1) GB715525A (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2755238A (en) * 1955-03-25 1956-07-17 Sprague Electric Co Electrolytic etching and oxidizing of aluminum
JPS57126126A (en) * 1981-01-29 1982-08-05 Yoshiyuki Okamoto Method of etching aluminum foil for electrolytic condenser
FR2539147A1 (en) * 1983-01-06 1984-07-13 Suzuoka Electric Appliances Process for electrochemical etching of an aluminium sheet intended for the manufacture of electrolytic capacitors
JPS6079707A (en) * 1983-10-06 1985-05-07 松下電器産業株式会社 Aluminum electrolytic condenser
EP1870497A1 (en) * 2006-06-23 2007-12-26 Siemens Aktiengesellschaft Method for the electrochemical stripping of a metallic coating from an element
EP1890004A1 (en) 2006-08-08 2008-02-20 Siemens Aktiengesellschaft Method for the production of a deposited layer from recycled layer material
JP7028481B2 (en) * 2020-12-28 2022-03-02 日本蓄電器工業株式会社 Electrode members for electrolytic capacitors and electrolytic capacitors

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE514157C (en) * 1927-02-03 1930-12-08 Max Wommer Process for bringing about an electrolytic surface cleaning of metals
DE595592C (en) * 1930-09-26 1934-04-18 Walter Goetzl Process for post-treatment of oxide coatings produced on aluminum or its alloys
GB467024A (en) * 1935-12-09 1937-06-09 Dubilier Condenser Co 1925 Ltd Improvements in or relating to electrolytic condensers and other electrolytic devices
FR815002A (en) * 1935-12-09 1937-07-05 Dubilier Condenser Co 1925 Ltd Method and apparatus for artificially increasing the area of electrodes for electrolytic condensations
US2163416A (en) * 1936-04-06 1939-06-20 Electro Mechanical Res Inc Electrolytic device
FR822057A (en) * 1936-05-26 1937-12-20 Siemens Ag Electrolytic capacitor
GB511590A (en) * 1936-11-19 1939-08-21 Dubilier Condenser Co 1925 Ltd Improvements in or relating to the treatment of electrodes for electrolytic devices, such as electrolytic condensers
NL56027C (en) * 1937-09-21
FR960114A (en) * 1942-05-04 1950-04-13

Also Published As

Publication number Publication date
GB715525A (en) 1954-09-15
DE1151604B (en) 1963-07-18
FR1093963A (en) 1955-05-11

Similar Documents

Publication Publication Date Title
EP0030227A3 (en) Method and apparatus for electrolytically treating a metal strip
ES203963A1 (en) Improvements in or relating to electrolytic capacitors
PT87648A (en) METHOD OF MEASURING THE EFFECTIVE INHIBITOR CONCENTRATION DURING A DEPOSITION OF METAL FROM AQUEOUS ELECTROLYTES
ES8501884A1 (en) Electrochemical method of testing for surface-characteristics, and testing apparatus for use in the method.
ES436808A1 (en) Method and apparatus for electroplating
ES345431A1 (en) Method of manufacturing aluminum electrode foil for electrolytic capacitors
ES312167A1 (en) A procedure to electrolytically attack an aluminum sheet. (Machine-translation by Google Translate, not legally binding)
GB792635A (en) Method of electroplating with aluminium and electrolyte therefor
ES197172U (en) Bipolar unit for electrolytic cells. (Machine-translation by Google Translate, not legally binding)
US3321389A (en) Method of anodically etching aluminum foils at elevated temperatures in an electrolyte including chloride and sulfate ions
US3714016A (en) Aluminum shield for a roll in continuous strip apparatus
GB907264A (en) Improvements in or relating to electrolytic treatment of metals more particularly aluminium for increasing the effective surface
SU390902A1 (en)
US2449726A (en) Direct coating of silver on iron or steel
ES211515A3 (en) A procedure for the obtaining of metallic powders (Machine-translation by Google Translate, not legally binding)
FR2092478A5 (en) Electrolytic printed circuit prodn - by electrolytic deposition - of copper
FR2015295A1 (en) Electrolytic production of al in which fresh electrolyte - is added to maintain uniform concentration
GB467267A (en) Improvements in or relating to the production of protective coatings on aluminium and aluminium alloys
SU833421A1 (en) Electrolyte for electrochemical treatment
SU72613A2 (en) Method of electrochemical etching and finishing of metal parts, for example, balls
Pozzoli et al. Electrochemical Method for Determining Effect of Fluoride Ion on Aluminum Surface
FR2109018A1 (en) Chromium plating - accelerated by fast electrolyte circulation between electrodes
ES208194A3 (en) Procedure to obtain by electrolysis a highly oxidizing compound. (Machine-translation by Google Translate, not legally binding)
SU72480A1 (en) Electrolytic coating method of lead, tin and zinc alloy
ES253255A1 (en) Procedimeinto for the production of rough or rough surfaces, particularly of anodic rough leaves for electrolytic condensers (Machine-translation by Google Translate, not legally binding)