A multilayered high performance
capacitor formed of two or more conductors with a
dielectric layer and one or more a
dielectric-conductor
interface layer sandwiched in between the conductors. The
capacitor may be fabricated using many thin
layers, at the nano level, providing a nanocapacitor. The
capacitor may employ an interleaved structured where numerous conductor
layers are interleaved with other conductor
layers. The
dielectric layers may be multilayered or a single layer and may consist of materials with high dielectric constants
ranging from 800 to over 1 million, including materials in the
perovskite-
oxide family. The capacitor can be shaped, sized and the appropriate materials selected to obtain breakdown voltages within the range of 0.1 to over 11 MV / cm and to obtain specific energies and energy densities equivalent to or exceeding the power characteristics of known capacitors,
fuel cells, and batteries. The nanocapacitor may be combined with other nanocapacitors to form stacks, packs, or grids of cells where the cells may be connected in series, parallel or both to provide increased energy or power characteristics