摘要 |
An apparatus for storing electrical energy is provided. The apparatus includes a first magnetic layer, a second magnetic layer, and a dielectric layer. The first magnetic layer has a first surface with saw tooth roughness; the second magnetic layer has a second surface with saw tooth roughness; and the dielectric layer is configured between the first magnetic layer and the second magnetic layer. The dielectric layer is arranged to store electrical energy; the first magnetic layer and the second magnetic layer are arranged to prevent electrical energy leakage; and the saw tooth roughness on the first surface and the second surface is designed to increase the capacitance of the apparatus.
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