H - Electricity – 01 – G
Patent
H - Electricity
01
G
334/26
H01G 13/00 (2006.01) C25D 11/12 (2006.01)
Patent
CA 1244104
PREPARATION OF CAPACITOR ELECTRODES Abstract of the Disclosure Aluminum capacitor foil which has been etched for low-voltage applications is rendered usable in inter- mediate to high voltage capacitors by anodizing the foil in two-stages: first a low voltage stage in an adipate electrolyte, and then a higher voltage stage in a borate electrolyte. The fine etch structure of the low-voltage etch is thereby not plugged in the second or higher vol- tage formation stage, whereby the foil is suitable for intermediate to high-voltage capacitor use.
512821
Mcpherson Allan B.
Nguyen Trung H.
Baker Harold C.
Sprague Electric Company
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