Though lithium metal has long been regarded as an ideal anode material for high-density batteries, the potential safety hazards greatly hampered its applications due to the non-uniform lithium nucleation and subsequent uncontrollable growth of lithium dendrites. To address these problems, herein, we developed carbon nanoribbons (LBCRs) with linearly distributed nucleation seeds and longitudinally bent structure. In the unique LBCRs, not only nucleation seeds located along edges decreased the nucleation barrier of lithium, inducing selective lithium nucleation, but also conductive carbon skeleton with bent structure regulated Li ion flux, preventing the formation of lithium dendrites. Moreover, LBCRs alleviated the volume change during cycling by guiding the lithium deposition inside the cavity. On the consequence, controllable lithium deposition was realized within LBCRs, and resulted composite anodes exhibited superior cycling stability including a low voltage hysteresis of 47.4 mV with a long cycle life over 700 h and a stable Coulombic efficiency above 94%.

长期以来，金属锂一直被认为是高密度电池的理想负极材料，但由于锂的不均匀成核和随后的锂枝晶无法控制的生长，潜在的安全隐患极大地阻碍了其应用。为了解决这些问题，在此，我们开发了具有线性分布的成核种子和纵向弯曲结构的碳纳米带（LBCR）。在独特的 LBCR 中，不仅位于边缘的成核种子降低了锂的成核势垒，诱导了选择性锂成核，而且具有弯曲结构的导电碳骨架调节了锂离子通量，防止了锂枝晶的形成。此外，LBCRs通过引导腔内的锂沉积减轻了循环过程中的体积变化。结果，