fig3

Figure 3. (A) Cyclic stability of Li||LCO batteries using [EMI][FSI] + 1M Li[FSI] (orange) and [EMI][FSI] + 5M Li[FSI] + 0.16M Na[TFSI] (blue) electrolytes. The batteries were first charged/discharged at 0.25 C for two cycles and then cycled at 0.7 C (≈1.2 mA cm^-2). (B) Cycling stability of Li||NCM 811 batteries using EMIFSI + 1M Li[FSI] with (blue) and without (black) 0.16 M Na[TFSI] at 0.5. This figure is reprinted (adapted) with permission from Sun et al.^[8]. Copyright (2020) WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.