Super dielectric capacitor using scaffold dielectric
AssigneeThe United States of America as represented by the Secretary of the Navy
InventorJonathan Phillips
Life of this patent
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Abstract
A capacitor having first and second electrodes and a scaffold dielectric. The scaffold dielectric comprises an insulating material with a plurality of longitudinal channels extending across the dielectric and filled with a liquid comprising cations and anions. The plurality of longitudinal channels are substantially parallel and the liquid within the longitudinal channels generally has an ionic strength of at least 0.1. Capacitance results from the migrations of positive and negative ions in the confined liquid in response to an applied electric field. A method of supplying power to a load using the capacitor and a method of making the capacitor is additionally disclosed.
Claims20
A capacitor comprising:
- a first electrode;
- a second electrode;
- and
- a scaffold dielectric in contact with the first electrode and the second electrode, the scaffold dielectric comprising:
- an insulating material comprising a first side and a second side where the first side is in contact with the first electrode and the second side is in contact with the second electrode;
- and
- a plurality of longitudinal channels, where every individual longitudinal channel in the plurality of longitudinal channels comprises a first aperture in the first side of the insulating material and a second aperture in the second side of the insulating material;
- and
- a liquid comprising ions within each longitudinal channel in the plurality of longitudinal channels, where the liquid within the each longitudinal channel is in contact with the first electrode and the second electrode.
A capacitor comprising:
- a first electrode;
- a second electrode;
- and
- a scaffold dielectric in contact with the first electrode and the second electrode, the scaffold dielectric comprising:
- an insulating material comprising a first side and a second side where the first side is in contact with the first electrode and the second side is in contact with the second electrode;
- and
- a plurality of longitudinal channels, where every individual longitudinal channel in the plurality of longitudinal channels comprises a first aperture in the first side of the insulating material and a second aperture in the second side of the insulating material, and the plurality of longitudinal channels are present in the scaffold dielectric such that a particular volume of the scaffold dielectric comprising some portion of the first side of the insulating material, some portion of the second side of the insulating material, the plurality of longitudinal channels, and some portion of the insulating material has a solid volume fraction of less than 98%;
- and
- a liquid comprising ions within each longitudinal channel in the plurality of longitudinal channels, where the liquid within the each longitudinal channel is in contact with the first electrode and the second electrode, and where the liquid comprises a solvent and a solute and where the solute has a molarity of at least 0.1 moles solute per liter of solvent and the solvent has a dielectric constant of at least 5.
Dependencies are inferred from the claim text.