Fig. 1: Schematic of electrolyte-oriented interfacial chemistry and SEI formation for Na metal stability. | Nature Communications

Fig. 1: Schematic of electrolyte-oriented interfacial chemistry and SEI formation for Na metal stability.

From: Dipole-dipole interaction-induced dense primitive solid-electrolyte interphase for high-power Ah-level anode-free sodium metal batteries

Fig. 1

Dipole-dipole interaction between electron-rich O atom (δO-) in G2 and electron-deficient H atom (δH+) in MPE that alters electron density distribution in solvent-solvent complex and facilitates C-F bond cleavage for spontaneous and fast surface passivation. The dense NaF-dominant primitive SEI protects Na metal at an early stage and ensures the reversible cycling of Na metal under harsh conditons.

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