Aluminum electrolytic capacitor

Electricity: electrical systems and devices – Miscellaneous

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252 622, H01G 900

Patent

active

045801940

ABSTRACT:
In an aluminum foil electrolytic capacitor, the anode foil bears both a layer of hydrous aluminum oxide and a layer of barrier dielectric oxide and is in contact with an electrolyte containing as additives up to 5 wt % depolarizer and sufficient soluble phosphate salt to restore the desired anodization voltage.

REFERENCES:
patent: 2793275 (1956-03-01), Houtz et al.
patent: 3454840 (1969-07-01), Hagihara et al.
patent: 3622843 (1971-11-01), Vermilyea
patent: 3733291 (1973-05-01), Alwitt
patent: 4428028 (1984-01-01), Ross et al.
patent: 4476517 (1984-10-01), Fresia

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