The invention discloses a
lithium metal electrode prepared through the 3D printing technology and a preparation method thereof. The
lithium metal electrode comprises a printing skeleton, wherein the printing skeleton is of a
network structure with regular patterns and comprises a grid structure, an array structure, a
honeycomb structure, a concentric circle structure or a spiral structure; and
lithium metal, which is deposited on the surface of the printing framework and / or is filled in gaps of the printing skeleton. The invention further discloses printing
slurry suitable for the method for preparing the
lithium metal electrode through the 3D printing technology. According to the method for preparing the
lithium metal electrode through the 3D printing technology, by applying the 3D printing technology to preparation of the
lithium metal battery, the problem of preparation of
microstructure materials which are difficult to industrially manufacture is solved, and the prepared lithium metal electrode shows excellent cycle performance, good rate capability, excellent deep charging and deep discharging performance and high coulombic efficiency; and after multiple times of charging anddischarging, the surface is smooth, and no obvious dendritic
crystal is formed.