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.

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