The practical implementation of the lithium metal anode is hindered by obstacles such as Li dendrite growth, large volume changes, and poor lifespan. Here, copper nitride nanowires (Cu N NWs) printed Li by a facile and low-cost roll-press method is reported, to operate in carbonate electrolytes for high-voltage cathode materials. Through one-step roll pressing, Cu N NWs can be conformally printed onto the Li metal surface, and form a Li N@Cu NWs layer on the Li metal. The Li N@Cu NWs layer can assist homogeneous Li-ion flux with the 3D channel structure, as well as the high Li-ion conductivity of the Li N. With those beneficial effects, the Li N@Cu NWs layer can guide Li to deposit into a dense and planar structure without Li-dendrite growth. Li metal with Li N@Cu NWs protection layer exhibits outstanding cycling performances even at a high current density of 5.0 mA cm with low overpotentials in Li symmetric cells. Furthermore, the stable cyclability and improved rate capability can be realized in a full cell using LiCoO over 300 cycles. When decoupling the irreversible reactions of the cathode using Li T O , stable cycling performance over 1000 cycles can be achieved at a practical current density of ≈2 mA cm .