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Capacitor

  • US 5,982,609 A
  • Filed: 04/01/1998
  • Issued: 11/09/1999
  • Est. Priority Date: 03/22/1993
  • Status: Expired due to Fees
First Claim
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1. A capacitor comprising:

  • a cathode including a porous coating of an amorphous metal oxide of at least one metal selected from the group consisting of ruthenium, iridium, nickel, rhodium, rhenium, cobalt, tungsten, manganese, tantalum, molybdenum, lead, titanium, platinum, palladium, and osmium;

    an anode spaced from the porous coating and including a metal selected from the group consisting of tantalum, aluminum, niobium, zirconium, and titanium and spaced from the porous coating, wherein the metals of the anode and cathode are different; and

    an electrolyte disposed between and in contact with the porous coating and the anode.

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