Fig. 1
Illustration of IL-TEMPO facilitating the performance of Li–O2 batteries. a Schematic illustration of the IL-TEMPO facilitating the performance of Li–O2 batteries. b Cyclic voltammetry curve of battery with IL-TEMPO electrolyte in argon atmosphere. The scan rate is 0.5 mV s−1. The inset image is the illustration of n-/p-doping of IL-TEMPO. The lithium anode is pre-treated with IL-TEMPO-containing propylene carbonate (PC) electrolyte for 5 days before use. c The discharge–charge profiles of a Li–O2 battery with the 1% IL-TEMPO electrolyte and DEGDME electrolyte. d The enlarged discharge–charge curves of a Li–O2 battery with DEGDME electrolyte. The current densities were 0.1 mA cm−2
