Advanced valve metal anodes with complex interior and...

Details Advanced valve metal anodes with complex interior and... Advanced valve metal anodes with complex interior and...

H - Electricity

01

G

H01G 9/04 (2006.01) H01B 13/00 (2006.01) H01G 9/048 (2006.01) H01G 9/052 (2006.01)

Patent

CA 2507028

The present invention generally relates to improved capacitors; in particular, the present invention provides advanced valve metal (AVM) anodes and methods for fabricating AVM anodes having complex surface and interior features for use in high energy density capacitors. Such anodes find use in high voltage capacitors incorporated into implantable medical devices (IMDs), among other uses. The AVM anodes may be pressed into virtually any arbitrary shape and may have a gradually changing (or substantially constant) density profile throughout the AVM anode. Such AVM anodes may also be perforated or shaped to receive one or more cathode members. The AVM anodes enhance packaging efficiency for compact high energy density capacitors.

L'invention porte sur des condensateurs améliorés, et en particulier sur des anodes améliorées à métal soupape (AVM) et leurs procédés de fabrication, lesdites anodes présentant une surface complexe et des caractéristiques intérieures se prêtant à la réalisation de condensateurs à forte densité d'énergie. De telles anodes sont notamment utilisables dans les condensateurs haute tension de dispositifs médicaux implantables. On peut presser les anodes AVM pour obtenir toute forme arbitraire dont des formes à profil de densité variant graduellement ou restant sensiblement constant sur toute la longueur. De telles anodes AVM peuvent être perforées ou usinées pour recevoir un ou plusieurs éléments cathodiques. Les anodes AVM présentent une meilleure compacité améliorée qui permet d'obtenir des condensateurs compacts à forte densité d'énergie.

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