Ceramphysics, Inc.

Charles Frederick Clark, Jr

William N Lawless

Capacitive energy storage device

A capacitive energy storage device for use at cryogenic temperatures is provided including first and second electrode layers having a layer of dielectric material there between. The electrode layers include an electrically conductive material having a formula selected from YBa Cu O and Bi Ca Sr Cu O . A method of storing electrical charge in a capacitive energy storage device is also provided. The method includes the steps of: (i) reducing the temperature of the capacitive energy storage device from a predetermined room temperature to a predetermined cryogenic operating temperature; (ii) applying a first electric field of a first field strength across the dielectric layer, wherein the magnitude of the first field strength is sufficient to cause the storage device to switch from a first operational state to a second operational state, the first operational state is characterized by a first dielectric constant, the second operational state is characterized by a second dielectric constant, and the second dielectric constant is substantially greater than the first dielectric constant; and (iii) charging the capacitive energy storage device in the second operational state.

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Columbus, OH, United States of America

Charles Frederick Clark, Jr