【摘要】 锂金属（Li）因其高比容量和低电化学电位被认为是下一代锂金属电池（LMB）负极材料的最佳选择，有望满足储能设备的要求。然而，其充放电过程中不可控的锂枝晶生长以及由此引起的循环稳定性差、库伦效率低和安全隐患高等系列问题，严重制约锂金属负极的商业化发展。本文在锂金属表面原位构筑了一层包含三维（3D）棒状微米银（Ag）的界面膜。三维棒状微米结构可均化电流密度的分布并促使电沉积锂均匀成核和生长，产生的Li-Ag合金可用于抑制“死锂”的形成，原位形成的LiNO₃可以增强固态电解质界面（SEI）膜的稳定性。通过结构和表面化学的协同调控作用，锂枝晶的生长被有效抑制，所获得的Li负极在10 m A/cm²高电流密度下可稳定循环。本文综合考虑了实现锂均匀电沉积的多方面因素，为LMB的商业化发展提供了新见解。更多还原

【Abstract】 Lithium（Li） metal is considered as the candidate for the next generation of Li metal battery（LMB） anodes due to its high capacity and the lowest potential, which is expected to meet the requirements of energy storage devices.Unfortunately, the uncontrollable growth of Li dendrites during the charge/discharge process, as well as the resulting problems of poor cycling stability, low coulomb efficiency and safety risk, has restricted the commercialization of Li anode. Herein, an in-situ interfacial film containing three-dimensional（3 D） rod-like micron-structure silver（Ag） is constructed on the surface of the Li metal. Due to the 3 D rod-like micron-structure used to homogenize the distribution of current density, achieving uniform nucleation and growth of electrodeposited Li, the produced Li-Ag alloy was employed to restrain the formation of “dead” Li and the in-situ formed LiNO₃ was utilized to facilitate the stability of solid-electrolyte interface（SEI） film, so the growth of dendritic Li is suppressed via the synergistic effect of structure and surface chemistry regulation. The obtained Li anode can achieve cycling stability at a high current density of 10 mA/cm².This work considers multiaspect factors inducing uniform Li electrodeposition, and provides new insights for the commercialization of LMB.更多还原