Adiponitrile-Lithium Bis(trimethylsulfonyl)imide Solutions as Alkyl Carbonate-free Electrolytes for Li Ti O (LTO)/LiNi Co Mn O (NMC) Li-Ion Batteries.

Recently, dinitriles (NC(CH ) CN) and especially adiponitrile (ADN, n=4) have attracted attention as safe electrolyte solvents owing to their chemical stability, high boiling points, high flash points, and low vapor pressure. The good solvation properties of ADN toward lithium salts and its high electrochemical stability (≈6 V vs. Li/Li ) make it suitable for safer Li-ions cells without performance loss.