CAPACITORS USING PREFORMED DIELECTRIC
First Claim
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1. A storage capacitor comprising:
- a first electrode having a first surface with a first surface area;
a second electrode having a second surface with a second surface area, wherein the second electrode is physically separated from the first electrode creating a gap between the first electrode and the second electrode; and
a dielectric material disposed within the gap and contacting the first surface and the second surface, wherein an effective relative permittivity between the first electrode and the second electrode is greater than or about 500.
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Abstract
Devices for storing energy at a high density are described. The devices include an electrode preformed to present a high exposed area onto which a dielectric is formed. The dielectric material has a high dielectric constant (high relative permittivity) and a high breakdown voltage, allowing a high voltage difference between paired electrodes to effect a high stored energy density.
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Citations
22 Claims
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1. A storage capacitor comprising:
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a first electrode having a first surface with a first surface area; a second electrode having a second surface with a second surface area, wherein the second electrode is physically separated from the first electrode creating a gap between the first electrode and the second electrode; and a dielectric material disposed within the gap and contacting the first surface and the second surface, wherein an effective relative permittivity between the first electrode and the second electrode is greater than or about 500. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A method of forming a storage capacitor, the method comprising:
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providing a first metal electrode with a first surface; providing a second metal electrode with a second surface, wherein the second electrode is physically separate from the first electrode creating a gap between the first electrode and the second electrode; and flowing a dielectric between the first electrode and the second electrode into the gap; and converting the flowable dielectric to a solid dielectric having a relative permittivity greater than or about 500. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
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Specification