Lithium metal has been regarded as the promising and attractive anode material for future energy storage. However, the development of lithium metal batteries has been severely hindered from large-scale commercial applications because of uncontrollable lithium dendrite growth and low coulombic efficiency, which may lead to short cycle life and safety hazard. Herein, we report a composite Li anode by prestoring lithium into highly ordered CoO nanorod array–decorated commercial carbon cloth (CC) through a thermal infusion strategy. Not only can the lithiophilicity of CC be improved by the CoO nanorod, but also the local current inhomogeneity can be decreased. As a stable 3-dimension (3D) framework, it can suppress the dendrite formation effectively. In comparison with bare Li, the CoO@CC-Li anode shows more stable cycling performance in symmetric cells with small overpotential at different current densities. The good cycling performance and rate capability in the full cell against the LiFePO₄ cathode also prove its advancement for practical applications.

金属锂已被认为是未来储能的有希望和有吸引力的阳极材料。然而，由于不可控的锂枝晶生长和低的库仑效率，锂金属电池的开发已经严重地受到大规模商业应用的阻碍，这可能导致循环寿命短和安全隐患。在这里，我们报告了一种复合锂阳极，该锂阳极是通过热注入策略将锂预先存储到装饰有序的CoO纳米棒阵列装饰的商用碳布（CC）中。CoO纳米棒不仅可以改善CC的亲锂性，而且可以降低局部电流的不均匀性。作为稳定的3维（3D）框架，它可以有效地抑制枝晶的形成。和裸李相比 CoO @ CC-Li阳极在对称电池中显示出更稳定的循环性能，在不同电流密度下具有小的过电势。满电池抗LiFePO的良好循环性能和速率能力₄阴极也证明了其在实际应用中的进步。