GB1033020A - A method of manufacturing a solid electrolytic capacitor - Google Patents

A method of manufacturing a solid electrolytic capacitor

Info

Publication number
GB1033020A
GB1033020A GB1185264A GB1185264A GB1033020A GB 1033020 A GB1033020 A GB 1033020A GB 1185264 A GB1185264 A GB 1185264A GB 1185264 A GB1185264 A GB 1185264A GB 1033020 A GB1033020 A GB 1033020A
Authority
GB
United Kingdom
Prior art keywords
deg
mixture
manganese
manganese nitrate
repeated
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
GB1185264A
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.)
NEC Corp
Original Assignee
NEC Corp
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
Priority to JP1504563 priority Critical
Application filed by NEC Corp filed Critical NEC Corp
Publication of GB1033020A publication Critical patent/GB1033020A/en
Application status is Expired legal-status Critical

Links

Classifications

    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01GCAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES OR LIGHT-SENSITIVE DEVICES, OF THE ELECTROLYTIC TYPE
    • H01G9/00Electrolytic capacitors, rectifiers, detectors, switching devices, light-sensitive or temperature-sensitive devices; Processes of their manufacture
    • H01G9/0029Processes of manufacture
    • H01G9/0036Formation of the solid electrolyte layer

Abstract

An oxidized metal body is coated with manganese dioxide by dipping it into a mixture of aqueous solution of manganese nitrate and an organic reducing agent and heating at a temperature below 300 DEG C., the immersion and heating steps being repeated, for example five times, until the coating is of the required thickness. The manganese nitrate concentration may be 50% by weight or may be as high as 63%. The organic reducing agent may be an acid amide, a carboxylic acid, a hydrocarboxylic acid, an aldehyde, or a ketone and may be added to the aqueous solution in a quantity of 10% by volume, or of 20% or 30%. In one example an oxidized sintered tantalum body is immersed for five minutes in a mixture of manganese nitrate solution with 10% formamide at 50 DEG C. and then heated for five minutes at 230 DEG C. in an electric oven to decompose the adsorbed and occluded liquid mixture into manganese dioxide, these processes being repeated.
GB1185264A 1963-03-22 1964-03-20 A method of manufacturing a solid electrolytic capacitor Expired GB1033020A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1504563 1963-03-22

Publications (1)

Publication Number Publication Date
GB1033020A true GB1033020A (en) 1966-06-15

Family

ID=11877848

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1185264A Expired GB1033020A (en) 1963-03-22 1964-03-20 A method of manufacturing a solid electrolytic capacitor

Country Status (2)

Country Link
CH (1) CH472105A (en)
GB (1) GB1033020A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6674635B1 (en) 2001-06-11 2004-01-06 Avx Corporation Protective coating for electrolytic capacitors
US6864147B1 (en) 2002-06-11 2005-03-08 Avx Corporation Protective coating for electrolytic capacitors

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6674635B1 (en) 2001-06-11 2004-01-06 Avx Corporation Protective coating for electrolytic capacitors
US6864147B1 (en) 2002-06-11 2005-03-08 Avx Corporation Protective coating for electrolytic capacitors

Also Published As

Publication number Publication date
CH472105A (en) 1969-04-30

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