Solubilized LiNO3by the cationic size effect of CsF for lithium metal anode protection and dendrite formation prevention in carbonate electrolyte

CsF solubilized LiNO 3 to optimize solvated shell of Li + in carbonate electrolyte. LiF-rich SEI was generated to prevent severe side reactions of Li metal. Cs + can inhibit lithium dendrite formation by self-healing electrostatic shield mechanism.