Tantalum capacitor with increased stability

    公开(公告)号:US11776759B2

    公开(公告)日:2023-10-03

    申请号:US17116044

    申请日:2020-12-09

    申请人: AVX Corporation

    摘要: A solid electrolytic capacitor containing a capacitor element is provided. The capacitor element contains an anode body that contains tantalum, a dielectric that overlies the anode body; and a solid electrolyte that overlies the dielectric. The solid electrolyte includes an intrinsically conductive polymer containing repeating thiophene units. Further, the capacitor exhibits a dielectric strength of about 0.6 volts per nanometer or more. The capacitor also exhibits a charge-discharge capacitance after being subjected to 3,000 cycles of a surge voltage and an initial capacitance prior to being subjected to the surge voltage, wherein the ratio of the charge-discharge capacitance to the initial capacitance is from about 0.75 to 1.

    Solid electrolytic capacitor containing polyaniline

    公开(公告)号:US11183342B2

    公开(公告)日:2021-11-23

    申请号:US16536735

    申请日:2019-08-09

    申请人: AVX Corporation

    摘要: A solid electrolytic capacitor containing a capacitor element is provided. The capacitor element contains a sintered porous anode body, a dielectric that overlies the anode body, a solid electrolyte that overlies the dielectric, and an external polymer coating that overlies the solid electrolyte and includes conductive polymer particles. The solid electrolyte includes a conductive polymer having repeating units derived from an aniline monomer having the following general formula (I):

    Solid electrolytic capacitor with improved leakage current

    公开(公告)号:US10186382B2

    公开(公告)日:2019-01-22

    申请号:US14997704

    申请日:2016-01-18

    申请人: AVX Corporation

    摘要: A capacitor assembly that is capable of exhibiting good electrical properties even under a variety of conditions is provided. More particularly, the capacitor contains a capacitor element that includes a sintered porous anode body, a dielectric that overlies the anode body, and a solid electrolyte that overlies the dielectric. The solid electrolyte also contains a pre-coat layer that overlies the dielectric and includes an organometallic compound. A solid electrolyte overlies the pre-coat layer that includes pre-polymerized conductive polymer particles, and an external polymer coating overlies the solid electrolyte that contains a pre-polymerized particles and a cross-linking agent.

    Solid Electrolytic Capacitor with Improved Leakage Current

    公开(公告)号:US20170207032A1

    公开(公告)日:2017-07-20

    申请号:US14997704

    申请日:2016-01-18

    申请人: AVX Corporation

    摘要: A capacitor assembly that is capable of exhibiting good electrical properties even under a variety of conditions is provided. More particularly, the capacitor contains a capacitor element that includes a sintered porous anode body, a dielectric that overlies the anode body, and a solid electrolyte that overlies the dielectric. The solid electrolyte also contains a pre-coat layer that overlies the dielectric and includes an organometallic compound. A solid electrolyte overlies the pre-coat layer that includes pre-polymerized conductive polymer particles, and an external polymer coating overlies the solid electrolyte that contains a pre-polymerized particles and a cross-linking agent.