Diffusion Limited Current Density: A Watershed in Electrodeposition of Lithium Metal Anode

Lithium metal is considered to be a promising anode material for high-energy-density rechargeable batteries because of its high theoretical capacity and low reduction potential. Nevertheless, the practical application Li anodes challenged by poor cyclic performance potential safety hazards, which are attributed non-uniform electrodeposition during charging. Herein, diffusion limited current density (DLCD), one critical fundamental parameters that govern electrochemical reaction process, investigated as threshold Li. The visualization concentration field distribution Faradic reveal how uniform can obtained when applied below DLCD related system. Moreover, within broken solid electrolyte interphases preferentially occurs at crack spots caused metal. This post-electrodeposition leads more consumption active greater than DLCD. Therefore, lowering or increasing proposed directions developing advanced strategies realize stable interfaces, aiming accelerate state-of-the-art batteries.