Process for treating aluminum electrolytic capacitor foil

Details Process for treating aluminum electrolytic capacitor foil Process for treating aluminum electrolytic capacitor foil

1983-02-07

1984-09-11

Morgenstern, Norman

Chemistry: electrical and wave energy

Processes and products

148 615R, 148 627, 148 13, 148127, 204 33, 204 58, C25D 544

Patent

active

044708858

ABSTRACT:
Aluminum electrolytic capacitor foil is treated after etching but before anodizing by first contacting it with a phosphate solution and then heat treating for 30 to 90 seconds to form a thermal oxide layer of controlled thickness. On subsequent anodization, the thermal oxide layer modifies the barrier oxide layer increasing its dielectric strength and hence capacitance and also stabilizes the barrier oxide layer.

REFERENCES:
patent: Re28015 (1974-05-01), Vermilyea et al.
patent: 1330581 (1920-02-01), Coulson
patent: 3600245 (1971-08-01), Gates
patent: 3666642 (1972-05-01), Alwan et al.
patent: 3945899 (1976-03-01), Nikaido et al.
patent: 4113579 (1978-09-01), Randall et al.
patent: 4204919 (1980-05-01), Randall et al.

Affiliated with

Also associated with

Rating

Process for treating aluminum electrolytic capacitor foil does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Process for treating aluminum electrolytic capacitor foil, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for treating aluminum electrolytic capacitor foil will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1193863