Fig. 2

Electrochemical performance and XRD patterns of the Li-O₂ cells with TESI or LiI additives. a Galvanostatic discharge/charge profile at 500 mA g⁻¹ with 50 mM TESI or 50 mM LiI additives at a limited specific capacity of 1000 mAh g⁻¹. b With 50 mM TESI additive for the first cycle, current density: 250, 500 and 1000 mA g⁻¹. XRD patterns of the cathode at the end of discharge and the cathode at the end of charge with (c) 50 mM TESI additive, (d) with 50 mM LiI additive, (e) with 100 mM TESI additive, (f) with 100 mM LiI additive