Figure 6.

(a) Partially fluorinated multiblock copoly(arylene ether sulfone)s bearing lithium perfluorosulfonimide functioning as ionomer (SI) were synthesized in the work of reference [206]. To obtain the polymer electrolyte (SI-S55), the dried ionomer was infiltrated with ethylene carbonate by immersing the membrane in dimethyl sulfoxide (DMSO) solvent during the time required to obtain 55 wt.% DMSO. (b) Discharge/charge capacities and Coulombic efficiency as functions of cycle number of Li/SI-S55/LiNi_1/3Mn_1/3Co_1/3O₂ cells; the first three cycles were conducted at C/20, all the following ones at C/5 (1C = 160 mA g⁻¹). (c) The corresponding potential profiles for the selected cycles. The cutoff potentials were set to 2.8 and 4.2 V vs. Li/Li⁺ and the cells were kept at a constant temperature of 40 °C. Reproduced with permission from [208]. Copyright 2018 Royal Society of Chemistry.