A bifunctional surfactant-like electrolyte additive for a stable lithium metal anode

Abstract

Nonafluorobutanesulfonyl fluoride (NtF) was developed as a bifunctional additive for enhancing the stability of the lithium metal anode. NtF can yield Nt⁺ and LiF. The presence of lithiophobic and lithiophilic groups in Nt⁺ facilitates the uniform deposition of Li⁺, while LiF contributes to forming a stable solid electrolyte interphase.