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Rechargeable batteries based on Li–S chemistry show promise as being possible for next‐generation energy storage devices because of their ultrahigh capacities and energy densities. Research over the past decade has demonstrated that the morphology of lithium polysulfides (LPSs) in electrolytes (soluble or insoluble) plays a decisive role in battery performance. Early studies have focused mainly on...
Critical drawbacks, including sluggish redox kinetics and undesirable shuttling of polysulfides (Li2Sn, n = 4–8), seriously deteriorate the electrochemical performance of high‐energy‐density lithium–sulfur (Li–S) batteries. Herein, these challenges are addressed by constructing an integrated catalyst with dual active sites, where single‐atom (SA)‐Fe and polar Fe2N are co‐embedded in nitrogen‐doped...