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

发明人： Pavel Kucharczyk ,  Miloslav Uher ,  Jan Petrzilek

IPC分类号： H01G9/025 ,  H01G9/042 ,  H01G9/15 ,  C08G61/12 ,  C08K5/544

CPC分类号： H01G9/025 ,  C08G61/126 ,  H01G9/042 ,  H01G9/15 ,  C08G2261/11 ,  C08G2261/1452

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.