Uncontrollable dendrite growth and poor reversibility of lithium (Li) metal anode hinder the practical implementation of Li metal based batteries. Herein, we report a feasible and scalable electrospraying strategy for fabricating a vertically aligned graphene (VAG) pillar architecture with low tortuosity and high specific surface area as both current collector and host material for Li metal anode. Columnar and dense Li with large granular size plates into the VAG electrode by the aid of the pillar structure, which could ensure continuous ion transfer and lower actual current density for uniform nucleation, as well as provide more accommodation with proper space size. The hollow graphene pillars and the surrounding sufficient space enables smooth Li plating under high capacity depth and abstains volume fluctuation of the whole electrode. The VAG pillar modified Li anode delivers low overpotential of 25 mV over 280 h under a high rate of 3 mA cm⁻², and high Coulombic efficiencies for 250 cycles at a capacity of 1 mAh cm⁻². More importantly, full cells paired with the high capacity LiFePO₄ cathode exhibit excellent cycling stability and rate capability, demonstrating the high Li utilization efficiency and improved ion migration kinetic in the low tortuous VAG architecture.

锂（Li）金属负极不可控的枝晶生长和不良的可逆性阻碍了锂金属电池的实际应用。在此，我们报告了一种可行且可扩展的电喷雾策略，用于制造具有低弯曲度和高比表面积的垂直排列的石墨烯（VAG）柱结构，作为锂金属负极的集流体和主体材料。柱状和致密的大颗粒状锂通过柱状结构进入VAG电极，可确保连续的离子转移和较低的实际电流密度以实现均匀成核，并在适当的空间尺寸下提供更多的容纳空间。中空的石墨烯柱和周围足够的空间使高容量深度下的锂电镀顺利进行，并避免了整个电极的体积波动。^-2，以及在 1 mAh cm ^-2容量下循环 250 次的高库仑效率。更重要的是，与高容量 LiFePO ₄正极配对的全电池表现出优异的循环稳定性和倍率性能，表明在低曲折的 VAG 结构中具有高的锂利用效率和改进的离子迁移动力学。