Etching a substrate: processes – Forming or treating material useful in a capacitor
Patent
1996-10-15
1999-07-13
Powell, William
Etching a substrate: processes
Forming or treating material useful in a capacitor
216 33, 216102, 216 52, 361522, 361529, B44C 122, C23F 100
Patent
active
059222158
ABSTRACT:
A method for making anode foil plates for use with layered electrolytic capacitors and capacitors made with such plates. A high purity aluminum foil is provided for generation of anode foil plates. Sheets of the foil are highly etched to provide a very high surface area. Following the etch process, the foil is partially cut or punched into plates from the etched sheets in the general shape of the finished capacitor housing with a portion remaining connected to the supporting foil. The supporting foil with the partially punched-out etched plates are subjected to a forming process by applying a voltage to the plates in the presence of an electrolyte to provide formed anode foil plates with edges which do not have to be reformed during capacitor aging and which do not have any particulates at cut edges. The formed anode plates are layered with cathode plates and separators in a capacitor housing with an electrolyte to provide a finished capacitor.
REFERENCES:
patent: 3365378 (1968-01-01), Maissel et al.
patent: 3997812 (1976-12-01), Stahle et al.
patent: 4484252 (1984-11-01), Ruijgrok et al.
patent: 4518471 (1985-05-01), Arora
patent: 4827381 (1989-05-01), Brommer et al.
patent: 4942501 (1990-07-01), MacFarlane et al.
patent: 5131388 (1992-07-01), Pless et al.
patent: 5522851 (1996-06-01), Fayram
patent: 5660737 (1997-08-01), Elias et al.
Elias William H.
McCall J. Scott
Parler Sam
Pless Benjamin D.
Mitchell Steven M.
Pacesetter Inc.
Powell William
LandOfFree
Method for making anode foil for layered electrolytic capacitor does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method for making anode foil for layered electrolytic capacitor , we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for making anode foil for layered electrolytic capacitor will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2272890