NbO capacitors with improved performance and higher working voltages
View Patent ↗A capacitor is described with an NbO anode. The capacitor has an NbO anode and an NbO anode lead extending from the NbO anode. A dielectric is on the NbO anode and a conductor is on the dielectric.
1. A capacitor comprising:
an NbO anode;
an NbO anode lead extending from said NbO anode;
a dielectric on said NbO anode; and
a conductor on said dielectric wherein said conductor is not on dielectric formed on oxygen saturated Nb.
2. The capacitor of claim 1 wherein said NbO anode comprises Nb 1+y O l-y wherein −0.1<y<0.1.
3. The capacitor of claim 1 wherein said NbO anode lead comprises Nb 1+x O 1 , wherein −0.1<x<0.1.
4. The capacitor of claim 1 wherein said dielectric comprises Nb 2 O 5 .
5. The capacitor of claim 1 wherein said conductor comprises at least one material selected from MnO 2 , a conductive polymer and a liquid electrolyte.
6. The capacitor of claim 5 wherein said conductive polymer is selected from the group consisting of polypyrrole, polyaniline and polythiophene.
7. The capacitor of claim 1 further comprising at least one element selected from an anode termination in electrical contact with said NbO anode lead and a cathode termination in electrical contact with said conductor.
8. A process of manufacturing a capacitor comprising:
providing an NbO anode with an NbO anode lead extending therefrom;
forming a dielectric on said NbO anode; and
forming a conductor on said dielectric wherein said conductor is not on dielectric formed on oxygen saturated Nb.
9. The process of manufacturing a capacitor of claim 8 wherein said NbO anode comprises Nb 1+y O l-y wherein −0.1<y<0.1.
10. The process of manufacturing a capacitor of claim 8 wherein said NbO anode lead comprises Nb 1+x O 1-x wherein −0.1<x<0.1.
11. The process of manufacturing a capacitor of claim 8 wherein said dielectric comprises Nb 2 O 5 .
12. The process of manufacturing a capacitor of claim 8 wherein said conductor comprises at least one material selected from MnO 2 , a conductive polymer and a liquid electrolyte.
13. The process of manufacturing a capacitor of claim 12 wherein said conductive polymer is selected from the group consisting of polypyrrole, polyaniline and polythiophene.
14. The process of manufacturing a capacitor of claim 8 further comprising at least one element selected from attaching an anode termination in electrical contact with said NbO anode lead and attaching a cathode termination in electrical contact with said conductor.