Patent ID: 9001497
Filing Date: 2015-04-07
Classification: H01G,Y10T

Abstract:
1. An electrode foil comprising: a substrate; and a coarse film layer having a void therein and a thickness of at least 20 μm, and formed on the substrate, wherein the coarse film layer includes at least a first coarse film layer formed on the substrate, the first coarse film layer is composed of arrayed first columnar bodies, each of the first columnar bodies is composed of metallic microparticles stacked on a surface of the substrate in such a manner that an original shape of each of the metallic microparticles is maintained, and is branched and extends from the surface of the substrate so as to be curved at a portion between a base and a leading end of each of the first columnar bodies, and the first columnar bodies are curved in an identical direction and substantially parallel to each other.