WO2005101972A3 - Integral separator for electrolytic capacitors - Google Patents

Integral separator for electrolytic capacitors Download PDF

Info

Publication number
WO2005101972A3
WO2005101972A3 PCT/IL2005/000412 IL2005000412W WO2005101972A3 WO 2005101972 A3 WO2005101972 A3 WO 2005101972A3 IL 2005000412 W IL2005000412 W IL 2005000412W WO 2005101972 A3 WO2005101972 A3 WO 2005101972A3
Authority
WO
WIPO (PCT)
Prior art keywords
anode
cathode
electrolytic capacitors
integral
oxide layer
Prior art date
Application number
PCT/IL2005/000412
Other languages
French (fr)
Other versions
WO2005101972A2 (en
Inventor
Yuri Zarnitsky
Leonid Bregman
Original Assignee
Acktar Ltd
Yuri Zarnitsky
Leonid Bregman
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 Acktar Ltd, Yuri Zarnitsky, Leonid Bregman filed Critical Acktar Ltd
Priority to JP2007509057A priority Critical patent/JP4739326B2/en
Publication of WO2005101972A2 publication Critical patent/WO2005101972A2/en
Publication of WO2005101972A3 publication Critical patent/WO2005101972A3/en

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
    • H01G9/0029—Processes of manufacture
    • H01G9/0032—Processes of manufacture formation of the dielectric layer
    • 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
    • H01G9/02—Diaphragms; Separators
    • 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
    • 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
    • H01G9/07—Dielectric layers

Abstract

The invention pertains to the field of electrolytic capacitors and discloses a capacitor consisting of anode with an insulating film thereon, a cathode, an electrolyte being in contact with anode and cathode, and at least one valve metal oxide layer integral with at least one surface of said cathode and/or anode (Fig.1). The metal oxide layer/s operate/s as integral anode-cathode separator and has an average thickness of less than 10 microns on both or one of said electrodes. The invention also discloses a process for manufacture of such capacitor, which process comprises a reactive vapor deposition of said valve metal (in the presence of oxygen) onto the surface of at least one said electrode.
PCT/IL2005/000412 2004-04-25 2005-04-20 Integral separator for electrolytic capacitors WO2005101972A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2007509057A JP4739326B2 (en) 2004-04-25 2005-04-20 Integrated separator for electrolytic capacitors

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IL16160604A IL161606A0 (en) 2004-04-25 2004-04-25 Integral separator for electrolytic capacitors
IL161606 2004-04-25

Publications (2)

Publication Number Publication Date
WO2005101972A2 WO2005101972A2 (en) 2005-11-03
WO2005101972A3 true WO2005101972A3 (en) 2006-02-02

Family

ID=34074032

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IL2005/000412 WO2005101972A2 (en) 2004-04-25 2005-04-20 Integral separator for electrolytic capacitors

Country Status (3)

Country Link
JP (1) JP4739326B2 (en)
IL (1) IL161606A0 (en)
WO (1) WO2005101972A2 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4585867B2 (en) * 2005-01-07 2010-11-24 ダイソー株式会社 Insoluble anode
IL173121A (en) * 2006-01-12 2011-07-31 Dina Katsir Electrodes, membranes, printing plate precursors and other articles including multi-strata porous coatings
KR101120872B1 (en) 2007-04-20 2012-02-27 후지쯔 가부시끼가이샤 Electrode foil, process for producing the electrode foil, and electrolytic capacitor
JP5104008B2 (en) * 2007-04-20 2012-12-19 富士通株式会社 Electrolytic capacitor
JP5104007B2 (en) * 2007-04-20 2012-12-19 富士通株式会社 Electrode foil and manufacturing method thereof
JP5181401B1 (en) * 2012-07-12 2013-04-10 日本蓄電器工業株式会社 Cathode foil for aluminum electrolytic capacitors

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6287673B1 (en) * 1998-03-03 2001-09-11 Acktar Ltd. Method for producing high surface area foil electrodes
DE10104573C1 (en) * 2001-02-01 2002-07-18 Epcos Ag Operating electrolyte used for an aluminum electrolyte capacitor contains ethylene glycol and a cinnamic acid-substituted salt

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1092741A (en) *
JPH01298713A (en) * 1988-05-27 1989-12-01 Elna Co Ltd Manufacture of cathode foil for electrolytic capacitor
FR2688092B1 (en) * 1992-02-14 1994-04-15 Traitement Metaux Alliages Sa SHEET FOR ELECTROLYTIC CAPACITOR ELECTRODE AND MANUFACTURING METHOD.
JP2000277386A (en) * 1999-03-23 2000-10-06 Toyota Motor Corp Electric double-layer capacitor separator and its manufacturing method
JP2003297692A (en) * 2002-03-29 2003-10-17 Nippon Chemicon Corp Solid electrolytic capacitor

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6287673B1 (en) * 1998-03-03 2001-09-11 Acktar Ltd. Method for producing high surface area foil electrodes
DE10104573C1 (en) * 2001-02-01 2002-07-18 Epcos Ag Operating electrolyte used for an aluminum electrolyte capacitor contains ethylene glycol and a cinnamic acid-substituted salt

Also Published As

Publication number Publication date
WO2005101972A2 (en) 2005-11-03
IL161606A0 (en) 2004-09-27
JP4739326B2 (en) 2011-08-03
JP2007535145A (en) 2007-11-29

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