Method and apparatus for capacitors having engineered electrodes with very high energy density

摘要

An apparatus and associated method for an energy-storage device (e.g., a capacitor) having a plurality of electrically conducting electrodes including a first electrode and a second electrode separated by a non-electrically conducting region, and wherein the non-electrically conducting region further includes a non-uniform permittivity (K) value. In some embodiments, the method includes providing a substrate; fabricating a first electrode on the substrate; and fabricating a second electrode such that the second electrode is separated from the first electrode by a non-electrically conducting region, wherein the non-electrically conducting region has a non-uniform permittivity (K) value. The capacitor devices will find benefit for use in electric vehicles, of all kinds, uninterruptible power supplies, wind turbines, mobile phones, and the like requiring wide temperature ranges from several hundreds of degrees C. down to absolute zero, consumer electronics operating in a temperature range of −55 degrees C. to 125 degrees C.

主权项

1. An apparatus comprising:
a capacitor that includes:
an anode; anda cathode that has a first surface facing the anode, wherein the first surface includes a first dielectric film that has a permittivity value of at least twenty (20), wherein the capacitor maintains a vacuum in a region that separates the anode and the dielectric coating on the cathode, and wherein the capacitor supports an operational regime having an electric field of at least 7 times 109 V/m.