The invention relates to a metal foil with improved bonding degree with a base material, which has three layers of overlapping electrolytic deposition layers on one surface, wherein the first layer adjacent to the surface is a tree-like deposition layer with a first metal as the main component, the second layer is a metal flash film uniformly deposited on the first layer, and the third layer is a tree-like deposition layer. The disclosed method for manufacturing such a metal foil includes: (a) electrolytically depositing a dendritic deposition layer with a first metal as a main component on the foil; (b) electrolytically depositing a metal flash film on the dendritic deposition layer of (a); (c) electrolytically depositing a tree-like deposited metal layer on the metal flash film in (b).
Patent sovereignty clause
A metal foil with three overlapping electrodeposited layers (a), (b) and (c) on its surface, wherein the first layer (a) adjacent to the surface is a tree-like deposited layer mainly containing one metal, the second layer (b) is a metal flash film uniformly deposited on the first layer, and the third layer (b) is composed of a second metal different from the first metal.