公开(公告)号：US11972908B2

公开(公告)日：2024-04-30

申请号：US17630368

申请日：2020-07-30

申请人： Heraeus Deutschland Gmbh & Co. KG

发明人： Yayoi Miyazaki ,  Akio Ishikawa ,  Udo Merker

IPC分类号： H01G9/025 ,  H01G9/00 ,  H01G9/15

CPC分类号： H01G9/025 ,  H01G9/0036 ,  H01G9/15

摘要： The present invention relates to a capacitor comprising i) an electrode body comprising an electrode material, wherein a dielectric layer comprising a dielectric material at least partially covers a surface of the electrode body; ii) a solid electrolyte layer comprising a solid electrolyte material that at least partially covers a surface of the dielectric layer, wherein the solid electrolyte material comprises a conductive polymer; iii) an anode contact that is in contact with the electrode body and that comprises copper, metal-plated copper or a copper-containing alloy; and iv) a cathode contact that is in contact with the solid electrolyte layer; wherein the capacitor further comprises at least one metal ion migration inhibitor. The present invention also relates to a process for the production of a capacitor, to a capacitor obtainable by such a process, to electronic circuit comprising the capacitor according to present invention and to the use of these capacitors in electronic circuits.