Operando identification of anion effect on lithium nucleation and growth via in situ transmission electron microscopy (opens in new tab)

Lithium metal batteries are considered promising candidates for next-generation energy storage due to the high capacity and low redox potential of lithium negative electrodes. However, dendritic Li growth and unstable solid-electrolyte interphase formation remain critical bottlenecks for practical implementation. While electrolyte anion chemistry critically governs solid-electrolyte interphase formation, nanoscale observations of anion-regulated Li nucleation and growth mechanisms remain limi...