Method and apparatus for high voltage aluminum capacitor design
First Claim
1. A capacitor for connection to a component, comprising:
- a capacitor stack, including;
one or more substantially planar cathode layers;
one or more substantially planar anode layers having a dielectric thickness less than 1200 nanometers and formed using a process comprising;
forming a hydrous oxide layer on the anode layers;
anodizing the anode layers in a bath containing an aqueous solution of boric acid and phosphate;
passing the anode layers through a borax solution; and
reanodizing the anode layers in boric acid phosphate electrolyte,one or more substantially planar separator layers; and
a unitary electrolyte;
a case with a feedthrough hole and a first aperture sized for passage of the capacitor stack;
a lid sealingly substantially conforming to the first aperture and sealingly connected to the first aperture; and
a feedthrough assembly connected to the capacitor stack and passing through a second aperture of the case and sealingly connected to the feedthrough hole,wherein the case is filled with the unitary electrolyte, and the capacitor is adapted to deliver to the component from about 5.3 joules per cubic centimeter of capacitor stack volume to about 6.3 joules per cubic centimeter of capacitor stack volume, at a voltage of between about 465 volts to about 620 volts.
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Accused Products
Abstract
Structure and method providing a capacitor connected to a component, including a capacitor stack made from one or more substantially planar cathode layers, one or more substantially planar anode layers, one or more substantially planar separator layers, and a solitary electrolyte. Additionally, the capacitor includes a case with a first aperture sized for passage of the capacitor stack and a second aperture, and one or more conductors connecting the capacitor stack to the component, with at least one conductor passing through the second aperture of the case, the at least one conductor sealingly connected to the second aperture. Further, the capacitor case is filled with a solitary electrolyte, and the capacitor stack is adapted to deliver to electronics from about 5.3 joules per cubic centimeter of capacitor stack volume to about 6.3 joules per cubic centimeter of capacitor stack volume, at a voltage of between about 465 volts to about 565 volts.
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Citations
20 Claims
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1. A capacitor for connection to a component, comprising:
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a capacitor stack, including; one or more substantially planar cathode layers; one or more substantially planar anode layers having a dielectric thickness less than 1200 nanometers and formed using a process comprising; forming a hydrous oxide layer on the anode layers; anodizing the anode layers in a bath containing an aqueous solution of boric acid and phosphate; passing the anode layers through a borax solution; and reanodizing the anode layers in boric acid phosphate electrolyte, one or more substantially planar separator layers; and a unitary electrolyte; a case with a feedthrough hole and a first aperture sized for passage of the capacitor stack; a lid sealingly substantially conforming to the first aperture and sealingly connected to the first aperture; and a feedthrough assembly connected to the capacitor stack and passing through a second aperture of the case and sealingly connected to the feedthrough hole, wherein the case is filled with the unitary electrolyte, and the capacitor is adapted to deliver to the component from about 5.3 joules per cubic centimeter of capacitor stack volume to about 6.3 joules per cubic centimeter of capacitor stack volume, at a voltage of between about 465 volts to about 620 volts. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification