▎ 摘　　要

NOVELTY - An ultra-thin lithium film composite comprises a bearing layer and an ultra-thin lithium film located on at least one surface of a bearing layer and compounded with the bearing layer. The ultra-thin lithium film is a uniform film with a through-hole having a pore diameter of 5-200 microns, uniform thickness of 0.5-20 microns and a thickness tolerance of plus minus 0.5 mu m. The ultra-thin lithium film and the bearing layer are provided with a solid electrolyte interface layer. The bonding force between the ultra-thin lithium film and the bearing layer is 0.1-15 N.m-1. USE - Ultra-thin lithium thin film composite. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for preparation of the ultra-thin lithium film composite.