Ultra-thin lithium film laminate and method for preparing the same

An ultra-thin lithium film laminate, comprising:

• a supporting layer;
• and
• an ultra-thin lithium film on at least one surface of the supporting layer and bound to the supporting layer, wherein the ultra-thin lithium film is a uniform thin film having a through-hole with a pore size ranging from 5 to 200 μm and having a uniform thickness ranging from 0.5 to 20 μm, with a thickness tolerance within ±0.5 μm,
• wherein there is a solid electrolyte interface layer at an interface between the ultra-thin lithium film and the supporting layer,
• a material for the supporting layer comprises at least one selected from the group consisting of a polymer, an inorganic oxide, and an inorganic conductor, wherein the polymer is selected from the group consisting of a polyimide, nylon, cellulose, a high-strength thin-film polyolefin, and a polyester;
• the inorganic oxide comprises aluminum oxide;
• and the inorganic conductor is selected from the group consisting of graphite, carbon nanotubes, and graphene, and
• an adhesion between the ultra-thin lithium film and the supporting layer is in a range from 0.1 to 10 N·m−1.