The electrochemical behaviour of TTF in Li–O2 batteries using a TEGDME-based electrolyte

Abstract

The electrochemical behaviour of tetrathiafulvalene (TTF), a redox mediator proposed to improve the recharge kinetics of Li–O₂ batteries, was investigated via synchrotron and lab X-ray diffraction. Using the LiFePO₄ anode, TTF causes chemical lithiation of the FePO₄ phase. TTF is also found to be unstable during discharge/charge cycles.