Capacitor including serially connected capacitor cells employing a solid electrolyte
First Claim
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1. A capacitor comprising:
- a plurality of capacitor cells, each cell including;
a first metal body having opposed first and second surfaces;
a cathode comprising a porous coating including an oxide of at least one metal selected from the group consisting of ruthenium, iridium, nickel, rhodium, platinum, palladium, and osmium disposed on the first surface of said first metal body;
an electrically insulating oxide disposed on the second surface of the first metal body; and
a solid electrolyte in contact with the cathode opposite the first metal body wherein the plurality of capacitor cells are disposed in a serial arrangement, the electrolyte of one cell contacting the electrically insulating oxide on the second surface of the first metal body of an adjacent cell;
a second metal body having first and second opposed surfaces, disposed at one end of the serial arrangement, and including a cathode comprising a porous coating including an oxide of at least one metal selected from the group consisting of ruthenium, iridium, nickel, rhodium, platinum, palladium, and osmium, disposed on one side of the second metal body, opposite an electrically insulating film in the serial arrangement and functioning as a cathode of the capacitor, and a solid electrolyte disposed between and contacting the porous coating of the second metal body and the electrically insulating oxide of the opposite first metal body in the serial arrangement;
a third metal body having first and second opposed surfaces, disposed at the other end of the serial arrangement, and including an electrically insulating oxide disposed on one side of the third metal body, opposite a porous coating of a first metal body in the serial arrangement, but no porous coating, and functioning as an anode of the capacitor, and a solid electrolyte disposed between and contacting the electrically insulating oxide of the third metal body and the porous coating of the opposite first metal body in the serial arrangement.
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Abstract
A capacitor includes a cathode having a porous coating including an oxide of one of ruthenium, iridium, nickel, rhodiumm platinum, palladium, and osmium, an anode including a metal selected from the group consisting of tantalum, aluminum, niobium, zirconium, and titanium, spaced from the porous coating, and an electrolyte in contact with the porous coating and the anode.
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Citations
3 Claims
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1. A capacitor comprising:
a plurality of capacitor cells, each cell including; a first metal body having opposed first and second surfaces;
a cathode comprising a porous coating including an oxide of at least one metal selected from the group consisting of ruthenium, iridium, nickel, rhodium, platinum, palladium, and osmium disposed on the first surface of said first metal body;
an electrically insulating oxide disposed on the second surface of the first metal body; anda solid electrolyte in contact with the cathode opposite the first metal body wherein the plurality of capacitor cells are disposed in a serial arrangement, the electrolyte of one cell contacting the electrically insulating oxide on the second surface of the first metal body of an adjacent cell; a second metal body having first and second opposed surfaces, disposed at one end of the serial arrangement, and including a cathode comprising a porous coating including an oxide of at least one metal selected from the group consisting of ruthenium, iridium, nickel, rhodium, platinum, palladium, and osmium, disposed on one side of the second metal body, opposite an electrically insulating film in the serial arrangement and functioning as a cathode of the capacitor, and a solid electrolyte disposed between and contacting the porous coating of the second metal body and the electrically insulating oxide of the opposite first metal body in the serial arrangement; a third metal body having first and second opposed surfaces, disposed at the other end of the serial arrangement, and including an electrically insulating oxide disposed on one side of the third metal body, opposite a porous coating of a first metal body in the serial arrangement, but no porous coating, and functioning as an anode of the capacitor, and a solid electrolyte disposed between and contacting the electrically insulating oxide of the third metal body and the porous coating of the opposite first metal body in the serial arrangement. - View Dependent Claims (2, 3)
Specification