Lithium metal is among the most promising anode materials in next-generation energy-storage systems. However, Li dendrite growth and unstable solid electrolyte interphase have hindered its practical applications. Structured current collectors have been widely proposed to settle these issues, whereas the pre-filling of Li metal into structured anode is challenging. We proposed a coralloid silver-coated carbon fiber-based composite Li anode (CF/Ag-Li) through Ag electroplating and molten Li infusion. The molten Li can be infused into the carbon fiber framework due to the lithiophilic nature of Ag. In addition, a dendrite-free morphology and extraordinary electrochemical performance are achieved in Li-LiFePO₄ and Li-sulfur cells. The CF/Ag-Li|Li symmetrical cells can cycle for 160 cycles at 10.0 mA cm⁻² and 10.0 mAh cm⁻². The CF/Ag-Li|S cells exhibited a high initial discharge capacity of 785 mAh g⁻¹ and a large capacity retention rate after 400 cycles at 0.5C.

锂金属是下一代储能系统中最有希望的阳极材料之一。然而，锂枝晶的生长和不稳定的固体电解质界面相阻碍了其实际应用。已经提出了结构化集电器来解决这些问题，而将锂金属预填充到结构化阳极中是具有挑战性的。我们通过电镀银和熔融的锂注入提出了一种珊瑚状的银包覆的碳纤维基复合锂阳极（CF / Ag-Li）。由于Ag的亲硫性质，熔融的Li可以注入到碳纤维骨架中。此外，在Li-LiFePO ₄和Li-硫电池中实现了无枝晶形态和出色的电化学性能。CF / Ag-Li | Li对称电池可在10.0 mA cm的条件下循环160次^-2和10.0 mAh cm ^-2。CF / Ag-Li | S电池在0.5C下经过400次循环后显示出高的初始放电容量785 mAh g ^-1和大的容量保持率。