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MX2009000488A - Improvements in the production of electrolytic capacitor. - Google Patents

Improvements in the production of electrolytic capacitor.

Info

Publication number
MX2009000488A
MX2009000488A MX2009000488A MX2009000488A MX2009000488A MX 2009000488 A MX2009000488 A MX 2009000488A MX 2009000488 A MX2009000488 A MX 2009000488A MX 2009000488 A MX2009000488 A MX 2009000488A MX 2009000488 A MX2009000488 A MX 2009000488A
Authority
MX
Mexico
Prior art keywords
anode
anode body
metal
production
electrolytic capacitor
Prior art date
Application number
MX2009000488A
Other languages
Spanish (es)
Inventor
Malcolm Ward-Close
Alastair Godrey
Stephen Kyle-Henney
David Hodgson
Stewart MALE
Original Assignee
Metalysis 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 Metalysis Ltd filed Critical Metalysis Ltd
Publication of MX2009000488A publication Critical patent/MX2009000488A/en

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
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B34/00—Obtaining refractory metals
    • C22B34/10—Obtaining titanium, zirconium or hafnium
    • C22B34/12—Obtaining titanium or titanium compounds from ores or scrap by metallurgical processing; preparation of titanium compounds from other titanium compounds see C01G23/00 - C01G23/08
    • C22B34/129—Obtaining titanium or titanium compounds from ores or scrap by metallurgical processing; preparation of titanium compounds from other titanium compounds see C01G23/00 - C01G23/08 obtaining metallic titanium from titanium compounds by dissociation, e.g. thermic dissociation of titanium tetraiodide, or by electrolysis or with the use of an electric arc
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B34/00—Obtaining refractory metals
    • C22B34/20—Obtaining niobium, tantalum or vanadium
    • C22B34/24—Obtaining niobium or tantalum
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B5/00—General methods of reducing to metals
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25C—PROCESSES FOR THE ELECTROLYTIC PRODUCTION, RECOVERY OR REFINING OF METALS; APPARATUS THEREFOR
    • C25C3/00—Electrolytic production, recovery or refining of metals by electrolysis of melts
    • C25C3/06—Electrolytic production, recovery or refining of metals by electrolysis of melts of aluminium
    • C25C3/20—Automatic control or regulation of cells
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
    • C25D11/00—Electrolytic coating by surface reaction, i.e. forming conversion layers
    • C25D11/02—Anodisation
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
    • C25D17/00—Constructional parts, or assemblies thereof, of cells for electrolytic coating
    • C25D17/10—Electrodes, e.g. composition, counter electrode
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
    • C25D3/00—Electroplating: Baths therefor
    • C25D3/66—Electroplating: Baths therefor from melts
    • 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
    • H01G9/052—Sintered electrodes
    • 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
    • H01G9/07—Dielectric layers

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Power Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Electrolytic Production Of Metals (AREA)
  • Fixed Capacitors And Capacitor Manufacturing Machines (AREA)
  • Manufacture And Refinement Of Metals (AREA)

Abstract

A method for the production of a precursor anode for an electrolytic capacitor comprises the steps of: a) forming an anode body from a suitable anode metal or metal alloy; b) subjecting the anode body to electro-deoxidation, whereby it undergoes electrolysis in a molten salt electrolyte under conditions so as to remove some undesired oxygen from the metal or metal alloy; c) washing the anode body to remove the electrolyte; and, d) depositing a dielectric layer on the anode body to form the precursor anode. The method is particularly suitable for producing porous tantalum anodes for solid electrolytic capacitors.
MX2009000488A 2006-07-13 2007-07-13 Improvements in the production of electrolytic capacitor. MX2009000488A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GBGB0613984.4A GB0613984D0 (en) 2006-07-13 2006-07-13 Improvements in the production of electrolytic capacitors
PCT/GB2007/002660 WO2008007126A1 (en) 2006-07-13 2007-07-13 Improvements in the production of electrolytic capacitor

Publications (1)

Publication Number Publication Date
MX2009000488A true MX2009000488A (en) 2009-05-19

Family

ID=36955636

Family Applications (1)

Application Number Title Priority Date Filing Date
MX2009000488A MX2009000488A (en) 2006-07-13 2007-07-13 Improvements in the production of electrolytic capacitor.

Country Status (9)

Country Link
EP (1) EP2052395A1 (en)
JP (1) JP2009543369A (en)
KR (1) KR20090031462A (en)
CN (1) CN101501798A (en)
GB (1) GB0613984D0 (en)
IL (1) IL196457A0 (en)
MX (1) MX2009000488A (en)
RU (1) RU2009101296A (en)
WO (1) WO2008007126A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB0910565D0 (en) * 2009-06-18 2009-07-29 Metalysis Ltd Feedstock
GB201223375D0 (en) * 2012-12-24 2013-02-06 Metalysis Ltd Method and apparatus for producing metal by electrolytic reduction

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006027612A2 (en) * 2004-09-09 2006-03-16 Cambridge Enterprise Limited Improved electro-deoxidation method, apparatus and product
US7594937B2 (en) * 2004-11-29 2009-09-29 Showa Denko K.K. Porous anode body for solid electrolytic capacitor, production method thereof and solid electrolytic capacitor

Also Published As

Publication number Publication date
GB0613984D0 (en) 2006-08-23
RU2009101296A (en) 2010-08-20
KR20090031462A (en) 2009-03-25
EP2052395A1 (en) 2009-04-29
WO2008007126A1 (en) 2008-01-17
IL196457A0 (en) 2009-09-22
JP2009543369A (en) 2009-12-03
CN101501798A (en) 2009-08-05

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