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US 7,255,924 B2Granted
Carbon nanoarchitectures with ultrathin, conformal polymer coatings for electrochemical capacitors
AssigneeThe United States of America as represented by the Secretary of the Navy
InventorsJeffrey W. Long, Debra R. Rolison
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Abstract
A composite having an electroactive polymer coating on a porous carbon structure is disclosed. The composite may be used in capacitor electrodes. The composite may be made by self-limiting electropolymerization of a monomer on the carbon structure.
Claims18
A composite comprising
- a porous carbon structure comprising a surface and pores;
- and
- a coating on the surface comprising an electroactive polymer;
- wherein the coating does not completely fill or obstruct a majority of the pores;
- wherein the coating is formed by self-limiting electropolymerization and does not exceed about 15 nanometers in thickness.
2 more elements
A capacitor comprising an anode, a cathode, and an electrolyte, wherein the anode, the cathode, or both comprise:
- a composite comprising
- a porous carbon structure comprising a surface and pores;
- and
- a coating on the surface comprising an electroactive polymer;
- wherein the coating does not completely fill or obstruct a majority of the pores;
- and
- wherein the coating is formed by self-limiting electropolymerization and does not exceed about 15 nanometers in thickness;
- and
- a current collector in electrical contact with the composite.
6 more elements
Dependencies are inferred from the claim text.