Li metal powders (LMPs) are beneficial to fabricating thin and large-area Li electrodes for Li metal batteries (LMBs) owing to slurry coating-based manufacturing and facile impregnation of functional additives. 3D structure of LMP-based composites can alleviate the local current density even at a higher current. However, non-uniform nucleation and growth persist as barriers to guaranteeing both the performance and safety of LMBs. Here, we report an AgNO₃-preplanted LMP electrode for securing long stable cycling of LMBs. During pre-mixing the LMP slurry with AgNO₃ additive, it can chemically form lithiophilic Ag that can offer favorable nucleation sites throughout the LMP surface. At the same time, nitrates can help enrich a highly conductive, robust Li₃N into solid electrolyte interphase (SEI). Pre-planting AgNO₃ into a 40 μm-thick LMP electrode reinforced the cycling stability up to 500 cycles with 86.8 % capacity retention at 1C/3C charging/discharging rates and allowed superior rate capability up to 30C.

由于基于浆料涂层的制造和功能添加剂的简便浸渍，锂金属粉末（LMP）有利于制造用于锂金属电池（LMB）的薄而大面积的锂电极。即使在更高的电流下，基于 LMP 的复合材料的 3D 结构也可以减轻局部电流密度。然而，不均匀的成核和生长仍然是保证 LMB 性能和安全性的障碍。在这里，我们报告了一种用于确保 LMB 长期稳定循环的 AgNO ₃预植入 LMP 电极。_{在将 LMP 浆料与 AgNO 3}添加剂预混合期间，它可以化学形成亲锂 Ag，从而在整个 LMP 表面提供有利的成核位点。同时，硝酸盐可以帮助富集高导电、坚固的 Li ₃N 进入固体电解质界面 (SEI)。_{将 AgNO 3}预植到 40 μm 厚的 LMP 电极中可增强高达 500 次循环的循环稳定性，在 1C/3C 充电/放电速率下具有 86.8% 的容量保持率，并允许高达 30C 的优异倍率性能。