Electrolytic capacitor having a higher cap recovery and lower ESR

Provided is an improved capacitor formed by a process comprising: providing an anode comprising a dielectric thereon wherein the anode comprises a sintered powder wherein the powder has a powder charge of at least 45,000 μFV/g; and forming a first conductive polymer layer encasing at least a portion...

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Bibliographische Detailangaben
Hauptverfasser: Chen, Qingping, Key, Elisabeth Crittendon, Bunha, Ajaykumar, Chacko, Antony P, Shi, Yaru
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung:Provided is an improved capacitor formed by a process comprising: providing an anode comprising a dielectric thereon wherein the anode comprises a sintered powder wherein the powder has a powder charge of at least 45,000 μFV/g; and forming a first conductive polymer layer encasing at least a portion of the dielectric by applying a first slurry wherein the first slurry comprises a polyanion and a conductive polymer and wherein the polyanion and conductive polymer are in a weight ratio of greater than 3 wherein the conductive polymer and polyanion forms conductive particles with an average particle size of no more than 20 nm.