GB1147058A - A method for preparing electrolytic capacitors - Google Patents

A method for preparing electrolytic capacitors

Info

Publication number
GB1147058A
GB1147058A GB4634466A GB4634466A GB1147058A GB 1147058 A GB1147058 A GB 1147058A GB 4634466 A GB4634466 A GB 4634466A GB 4634466 A GB4634466 A GB 4634466A GB 1147058 A GB1147058 A GB 1147058A
Authority
GB
United Kingdom
Prior art keywords
acids
anodizing
electrolytic capacitors
half esters
working 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
GB4634466A
Inventor
Kalman Vargha
Henrik Rausch
Marta Matok
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.)
TAVKOZLESI KI
Tavkoezlesi Kutato Intezet
Original Assignee
TAVKOZLESI KI
Tavkoezlesi Kutato Intezet
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 TAVKOZLESI KI, Tavkoezlesi Kutato Intezet filed Critical TAVKOZLESI KI
Priority to GB4634466A priority Critical patent/GB1147058A/en
Publication of GB1147058A publication Critical patent/GB1147058A/en
Expired legal-status Critical Current

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

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Fixed Capacitors And Capacitor Manufacturing Machines (AREA)

Abstract

1,147,058. Electrolytic capacitors. TAVKOZLESI KUTATO INTEZET. 17 Oct., 1966, No 46344/66. Heading H1M. An oxide film is formed on a valve metal foil by anodizing, using an aqueous solution containing solute selected from the phosphates or hydrogen phosphates of ammonium or alkali metals, or mixtures thereof, at a current density of 1 to 15 mA/cm.<SP>3</SP> and after constructing an electrolytic capacitor using the anodized foil, reformation is carried out using the working electrolyte which contains quaternary ammonium salts of the half esters formed from dicarboxylic acids and/or hydroxydicarboxylic acids and dihydric alcohols. Preferably anodizing takes place at 2‹ to 98‹ C. using a phosphate concentration of 0À5 to 10 g./litre at a pH of 4 to 8. The working electrolyte preferably contains the salt formed from ethanolamine and the half esters of tartaric, succinic or adipic acids and ethylene glycol.
GB4634466A 1966-10-17 1966-10-17 A method for preparing electrolytic capacitors Expired GB1147058A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB4634466A GB1147058A (en) 1966-10-17 1966-10-17 A method for preparing electrolytic capacitors

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4634466A GB1147058A (en) 1966-10-17 1966-10-17 A method for preparing electrolytic capacitors

Publications (1)

Publication Number Publication Date
GB1147058A true GB1147058A (en) 1969-04-02

Family

ID=10440872

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4634466A Expired GB1147058A (en) 1966-10-17 1966-10-17 A method for preparing electrolytic capacitors

Country Status (1)

Country Link
GB (1) GB1147058A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0104703A1 (en) * 1982-09-24 1984-04-04 Koninklijke Philips Electronics N.V. Electrolytic capacitor
EP0227433A2 (en) * 1985-12-20 1987-07-01 Mitsubishi Petrochemical Co., Ltd. Electrolyte solution of quaternary ammonium salt for electrolytic capacitor
EP0239043A1 (en) * 1986-03-28 1987-09-30 Nippon Chemi-Con Corporation An electrolyte for electrolytic capacitor

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0104703A1 (en) * 1982-09-24 1984-04-04 Koninklijke Philips Electronics N.V. Electrolytic capacitor
EP0227433A2 (en) * 1985-12-20 1987-07-01 Mitsubishi Petrochemical Co., Ltd. Electrolyte solution of quaternary ammonium salt for electrolytic capacitor
EP0227433A3 (en) * 1985-12-20 1987-09-02 Mitsubishi Petrochemical Co., Ltd. Electrolyte solution of quaternary ammonium salt for electrolytic capacitor
EP0239043A1 (en) * 1986-03-28 1987-09-30 Nippon Chemi-Con Corporation An electrolyte for electrolytic capacitor

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