All-solid-state lithium metal batteries with inorganic solid electrolytes are capable to deliver a high theoretical energy density and work safely in a common battery operating condition. However, one critical issue facing all-solid-state lithium metal batteries is the “short” and “unstable” cycling performance. Cell failures might origin from various roots, including “unstable” interphase formation, “uncontrolled” penetration of lithium dendrites, “bad” interfacial compatibility and “irreversible” volume change of electrode/electrolyte materials. In this effort, we focus on comprehensively discussing the lithium dendrite formation that leads to cell failures of all-solid-state lithium metal batteries with inorganic solid electrolytes. We summarize possible roots for the lithium dendrite formation through the inorganic solid electrolytes, and provide strategies to suppress the growth and propagation of lithium dendrites to alleviate cell failures of all-solid-state lithium metal batteries with inorganic solid electrolytes. We believe this focused review will help to better understand the formation mechanisms of lithium dendrites, and their roles in cell failures of all-solid-state lithium metal batteries with inorganic solid electrolytes.

具有无机固体电解质的全固态锂金属电池能够提供较高的理论能量密度，并能在普通电池工作条件下安全地工作。但是，全固态锂金属电池面临的一个关键问题是“短”和“不稳定”的循环性能。电池故障可能源于多种原因，包括“不稳定”的相间形成，“不受控”的锂枝晶渗透，“不良”的界面相容性以及电极/电解质材料的“不可逆”的体积变化。在这项工作中，我们专注于全面讨论锂枝晶的形成，该枝晶导致具有无机固体电解质的全固态锂金属电池发生电池故障。我们总结了通过无机固体电解质形成锂枝晶的可能根源，并提供抑制锂树枝状晶体生长和扩散的策略，以减轻含无机固体电解质的全固态锂金属电池的电池故障。我们相信，这次有重点的综述将有助于更好地理解锂枝晶的形成机理，以及它们在含无机固体电解质的全固态锂金属电池失效中的作用。