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US 2020/0051757 A1Published application
Solid Electrolytic Capacitor Containing An Intrinsically Conductive Polymer
AssigneeAVX Corporation
InventorsMiloslav Uher, Kiyofumi Aoki, Pavel Kucharczyk
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Abstract
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 coating that overlies the solid electrolyte and includes conductive polymer particles. The solid electrolyte includes an intrinsically conductive polymer containing repeating thiophene units of a certain formula.
Claims23
A solid electrolytic capacitor comprising a capacitor element, wherein the capacitor element comprises:
- a sintered porous anode body;
- a dielectric that overlies the anode body;
- a solid electrolyte that overlies the dielectric, wherein the solid electrolyte includes an intrinsically conductive polymer containing repeating thiophene units of the following general formula (I):
- wherein,
- a is from 0 to 10;
- b is from 1 to 18;
- R is an optionally substituted C1-C6 linear or branched alkyl group or a halogen atom;
- and
- M is a hydrogen atom, an alkali metal, NH(R1)3, or HNC5H5, wherein R1 is each independently a hydrogen atom or an optionally substituted C1-C6 alkyl group;
- and
- an external polymer coating that overlies the solid electrolyte and includes conductive polymer particles.
8 more elements
Dependencies are inferred from the claim text.