Patent ID: 11881360
Assignee: MURATA MANUFACTURING CO., LTD.
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. An electrolytic capacitor comprising:
a resin molded body having opposed first and second end surfaces, the resin molded body including a stack that includes a capacitor element with an anode exposed at the first end surface, a dielectric layer on a surface of the anode, and a cathode opposite to the anode and exposed at the second end surface, and a sealing resin that encloses the stack;
a first external electrode on the first end surface of the resin molded body and electrically connected to the anode; and
a second external electrode on the second end surface of the resin molded body and electrically connected to the cathode,
wherein the first external electrode and the second external electrode each include:
a resin electrode layer containing a conductive component and a resin component; and
a Ni plating layer on a surface of the resin electrode layer, wherein
a ratio of a thickness of the resin electrode layer to a thickness of the Ni plating layer is 5 or less,
the resin electrode layer is between the Ni plating layer and the resin molded body, and
the thickness of the Ni plating layer is 2 μm to 8 μm.