Aluminum metal anode rechargeable batteries with sulfur–carbon composite cathodes and inorganic chloroaluminate ionic liquid

Abstract

Promising sulfurized polyethylene glycol (SPEG) composite cathodes with a high-rate capability over 3000 mA g⁻¹ at 393 K are fabricated for Al metal anode rechargeable batteries with a 61.0–26.0–13.0 mol% AlCl₃–NaCl–KCl inorganic ionic liquid electrolyte. The combination of the SPEG composite cathodes and chloroaluminate inorganic IL can readily enhance the performance of the Al–S batteries, e.g., discharge capacity and cycle stability.