Extended Data Fig. 9: Li/Cl₂ battery cycling at 500 mAh g⁻¹ with 4 M AlCl₃ in SOCl₂ + 2 wt% LiFSI + 2 wt% LiTFSI as the electrolyte.

a, Cycling performance of Li/Cl₂ battery at 500 mAh g⁻¹ with 150 mA g⁻¹ and 100 mA g⁻¹ currents (the first five cycles were cycling at 150 mA g⁻¹ and starting from cycle 6 the current was 100 mA g⁻¹). The loading of the battery was about 4.5 mg cm⁻². b, Typical charge–discharge curve of Li/Cl₂ battery at 500 mAh g⁻¹ cycling capacity. The loading of the battery was about 4.5 mg cm⁻².