Secondary battery, secondary battery electrode, secondary battery manufacturing method, and secondary battery electrode manufacturing method

Abstract

There is provided a secondary battery, comprising a container filled with an electrolytic solution; a separator having electrical insulation property and ion conductivity and configured to divide an internal space of the container into a first electrode chamber and a second electrode chamber; a first electrode configured by a metal substrate and placed in the first electrode chamber; and a second electrode placed in the second electrode chamber and including a metal atom which is ionized and moved to the first electrode. The metal substrate has a fine concavo-convex structure, which is formed on an outer surface, including a plurality of convexes that are made of metal particles having a maximum width of not less than 0.5 μm and not greater than 30.0 μm. The secondary battery is configured so that the metal atom deposits on surface of the convexes in a process of charging.

Dependencies are inferred from the claim text.