Fig. 3: Spectroscopic, computational and electrochemical investigations of electrolyte with iodine addition.
From: Iodine-induced self-depassivation strategy to improve reversible kinetics in Na-Cl2 battery
a Raman spectra of different SOCl2 electrolytes, including SOCl2, SOCl2-AlCl3, SOCl2-AlCl3-NaFSI-NaTFSI (abbreviated as SANN), SANN with different amount of I2 (0.02, 0.2, 1.0 wt%, abbreviated as SANN + 0.02/0.2/1.0 wt% I2). b Formation energy of the structures in different times. c Comparison of the calculated lowest occupied molecular orbital (LUMO) energy levels and highest occupied molecular orbital (HOMO) energy levels of SOCl2·I2 complex at different time. d Gibbs free energy for the possible decomposition processes of SOCl2 and SOCl2·I2 complex components. e CV curves of the SANN, and SANN + 0.2 wt% I2 electrolytes in three-electrode systems with a scan rate of 2 mV s−1. f The first-cycle discharge curves of SDC battery and OC battery.
