Ordering Engineering among the Nanostructure Evolution Facilitates High-Performance Li Metal Anode

Lithium (Li) metal batteries (LMBs) with extremely high energy density have emerged as highly promising candidates for next-generation energy storage systems. However, the inferior lifespan and safety hazards hinder their practical applications, which arise from the disordered nanostructure at anodic interface, such as mosaic solid electrolyte interphase (SEI) and nonuniform Li deposition. Ordering engineering among the nanostructure evolution has emerged as a promising strategy to address these issues, which involves enhancing the structural ordering of SEI, managing the distribution and orientation of inorganic components within SEI, and optimizing the morphostructure and texture of Li deposition. Herein, recent advances in ordering engineering which effectively promote the interface ordering are systematically summarized. The importance of constructing a multilayer SEI with oriented inorganic components and achieving strong Li texture with preferred crystal plane is highlighted. Furthermore, advanced characterization techniques employed in ordering engineering are critically reviewed. Finally, the comprehensive examination of challenges encountered in ordering engineering is presented and promising research pathways for future investigation are highlighted. This review aims to encourage discussion and research on the ordering engineering in LMBs, with the goal of enhancing cycle life and safety to accelerate their practical applications.