Highly Lithiophilic Three-Dimension Framework of Vertical CuO Nanorod Arrays Decorated Carbon Cloth for Dendrite-Free Li Metal Anode

An Li metal anode has been proposed as a promising candidate for high energy density electrode material. However, the direct use of can lead to uncontrollable dendrite growth and massive volume expansion, which generates severe safety hazards hinders practical application. Herein, we developed novel by thermal infusion into three-dimensional (3D) carbon cloth (CC) modified with lithiophilic CuO nanorod arrays (denoted Li@CuO−CC). The 3D CC offers sufficient space storage adequate electrolyte/electrode contact fast charge transfer. uniformly distributed improve lithiophilicity redistribute Li-ion flux on substrate, leading uniform stripping/plating behavior. As result, Li@CuO−CC exhibits dendrite-free feature superior cycling performance over 1000 h low overpotential (12 mV) at current 1 mA cm−2 in symmetrical cell without significant fluctuations. When coupled an LiFePO4 cathode, full displays specific capacity (133.8 mAh g−1 C), outstanding rate performance, cycle stability (78.7% retention after 600 cycles C). This work opens new approach development construction advanced batteries.