Lithium metal, a widely recognized anode material for next generation high energy density batteries, is hindered by challenges such as dendrite growth and interfacial instability. Lithiophilic MnO 2 based current collectors have demonstrated potential in regulating lithium deposition. However, the critical relationship between MnO 2 phase selection, structural stability, and electrochemical performance remains poorly understood. In this study, we employ density functional theory (DFT) calculations to guide the fabrication of MnO 2 based current...