▎ 摘　　要

NOVELTY - Composite modified layer (L) attached to a surface of a current collector (A) comprises a lithiophilic nano-particle (M) and a polymer (P) forming as a polymer composite (MPC), where the surface of the current collector comprises at least a metal. USE - The layer is useful in: an anode-free lithium metal battery (claimed); and liquid or solid state electrolyte for providing better and safer charging and discharging performance during life cycles for the full cell. ADVANTAGE - The layer: has higher average Coulombic efficiency and higher capacity retention; has high lithium ion conductivity, low electron conductivity and high stability of electrolyte and overall mechanical strength; provides high mechanical adhesion properties; and has the ability to optimize the efficiency of full lithium battery, especially to anode-free lithium battery. DESCRIPTION OF DRAWING(S) - The figure shows the composite modified layer. Current collector (A) Composite modified layer (L) Lithiophilic nano-particle (M) Polymer composite (MPC) Polymer (P)