Anodization of aluminum capacitor electrode foil

Details Anodization of aluminum capacitor electrode foil Anodization of aluminum capacitor electrode foil

1978-05-15

1979-03-27

Tufariello, T. M.

Chemistry: electrical and wave energy

Processes and products

204 58, C25D 1106

Patent

active

041464397

ABSTRACT:
Current efficiency is increased in the anodization of aluminum foil for electrolytic capacitors by carrying out the anodization below 90.degree. C. in a non-aqueous ethylene glycol-ammonium pentaborate bath containing a small amount of an orthophosphate source, e.g., ammonium dihydrogen phosphate.

REFERENCES:
patent: 1963049 (1934-06-01), Georgiev
patent: 2017835 (1935-10-01), Georgiev
patent: 2052575 (1936-09-01), Lilienfeld
patent: 2094048 (1937-09-01), Siegel
patent: 3796644 (1974-03-01), Bernard

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