CAPACITORS COMPRISING ORGANIZED ASSEMBLIES OF CARBON AND NON-CARBON COMPOUNDS

• US 20090015984A1
• Filed: 03/10/2008
• Published: 01/15/2009
• Est. Priority Date: 03/15/2007
• Status: Active Grant

• Current Assignee: Yazaki Corporation
• Original Assignee: Yazaki Corporation
• Inventors: Grigorian, Leonid, Colbern, Steven G., Brahim, Sean Imtiaz
• Granted Patent: US 7,794,840 B2
• Time in Patent Office: Days
• US Class Current: 361/305
• CPC Class Codes: B82Y 99/00 Subject matter not provided for in other groups of this subclass
• CPC Class Codes: H01G 11/30 characterised by their material
• CPC Class Codes: H01G 11/36 Nanostructures, e.g. nanofibres, nanotubes or fullerenes
• CPC Class Codes: H01G 11/46 Metal oxides
• CPC Class Codes: H01G 4/008 Selection of materials
• CPC Class Codes: Y02E 60/13 Energy storage using capacitors
• CPC Class Codes: Y10S 977/742 Carbon nanotubes, CNTs
• CPC Class Codes: Y10T 428/30 Self-sustaining carbon mass or layer with impregnant or other layer

Abstract

This invention relates generally to capacitors comprising organized assemblies of carbon and non-carbon compounds. This invention further relates to methods of making such organized structures. It also relates to devices containing such structures. In preferred embodiments, the organized structures of the instant invention take the form of nanorods or their aggregate forms. More preferably, a nanorod is made up of a carbon nanotube filled, coated, or both filled and coated by a non-carbon material. In particular, the present invention is directed to a capacitor electrode comprising a carbon nanotube filled with one or more non-carbon materials comprising titanium, a titanium compound, manganese, a manganese compound, cobalt, nickel, palladium, platinum, bromine, iodine, an interhalogen compound, or the combination thereof.

Claims

1. A capacitor electrode comprising a carbon nanotube filled with one or more non-carbon materials comprising titanium, a titanium compound, manganese, a manganese compound, cobalt, nickel, palladium, platinum, bromine, iodine, an interhalogen compound, or the combination thereof.

2. The capacitor electrode according to claim 1, wherein said non-carbon material comprises titanium.

3. The capacitor electrode according to claim 1, wherein said non-carbon material comprises a titanium compound.

4. The capacitor electrode according to claim 3, wherein said titanium compound has a formula TiH_wB_xN_yO_z, wherein w=0 to 2, x=0 to 2, y=0 to 1, and z=0 to 2.

5. The capacitor electrode according to claim 3, wherein said titanium compound is a mixture of titanium and bismuth.

6. The capacitor electrode according to claim 1, wherein said non-carbon material comprises manganese.

7. The capacitor electrode according to claim 1, wherein said non-carbon material comprises a manganese compound.

8. The capacitor electrode according to claim 7, wherein said manganese compound. has a formula MnH_xB_x′

N_yO_z, wherein w=0 to 4, x=0 to 2, y=0 to 1, and z=0 to 2.

9. The capacitor electrode according to claim 1, wherein said non-carbon material comprises cobalt.

10. The capacitor electrode according to claim 1, wherein said non-carbon material comprises nickel.

11. The capacitor electrode according to claim 1, wherein said non-carbon material comprises palladium.

12. The capacitor electrode according to claim 1, wherein said non-carbon material comprises platinum.

13. The capacitor electrode according to claim 1, wherein said non-carbon material comprises bromine, iodine, interhalogen compounds, or the combination thereof.

14. The capacitor electrode according to claim 13, wherein said non-carbon material comprises bromine.

15. The capacitor electrode according to claim 13, wherein said non-carbon material comprises iodine.

16. The capacitor electrode according to claim 13, wherein said non-carbon material comprises an interhalogen compound.

17. The capacitor electrode according to claim 1, wherein said carbon nanotube is a single wall carbon nanotube.

18. The capacitor electrode according to claim 1, wherein said carbon nanotube is a multi wall carbon nanotube.

19. The capacitor electrode according to claim 1, wherein said carbon nanotube is further coated with a second non-carbon material.

20. The capacitor electrode according to claim 19, wherein said second non-carbon material comprises titanium, a second titanium compound, manganese, a second manganese compound, cobalt, nickel, palladium, platinum, or the combination thereof.

21. The capacitor electrode according to claim 20, wherein said second non-carbon material comprises a second titanium compound.

22. The capacitor electrode according to claim 21, wherein said second titanium compound has a formula TiH_wB_x′

N_y′

O_z′

, wherein w′

=0 to 2, x′

=0 to 2, y′

=0 to 1, and z′

=0 to 2.

23. The capacitor electrode according to claim 21, wherein said second titanium compound is a mixture of titanium and bismuth.

24. The capacitor electrode according to claim 19, wherein said second non-carbon material comprises manganese.

25. The capacitor electrode according to claim 19, wherein said second non-carbon material comprises a second manganese compound.

26. The capacitor electrode according to claim 25, wherein said second manganese compound has a formula MnH_w′

B_x′

N_y′

O_z′

, wherein w′

=0 to 4, x′

=0 to 2, y′

=0 to 1, and z′

=0 to 2.

27. The capacitor electrode according to claim 19, wherein said second non-carbon material comprises cobalt.

28. The capacitor electrode according to claim 19, wherein said second non-carbon material comprises nickel.

29. The capacitor electrode according to claim 19, wherein said non-carbon material comprises palladium.

30. The capacitor electrode according to claim 19, wherein said non-carbon material comprises platinum.