Patent ID: 11915885
Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. An electrode foil for an electrolytic capacitor, the electrode foil comprising:
an anode body including aluminum;
a first dielectric layer covering at least a part of the anode body and including Al2O3; and
a second dielectric layer covering at least a part of the first dielectric layer and including SiO2, wherein:
a thickness T2 of the second dielectric layer is smaller than a thickness T1 of the first dielectric layer,
a total thickness of the thickness T1 of the first dielectric layer and the thickness T2 of the second dielectric layer ranges from 7 nm to 12.5 nm, inclusive, and
a ratio T1/T2 of the thickness T1 of the first dielectric layer to the thickness T2 of the second dielectric layer is more than 1 and less than or equal to 20.