The need for high capacity, safer and inexpensive rechargeable batteries has never been as high as now with the ubiquitous and well-accepted intermittent wind and solar-based renewable energy generation systems. Recently, rechargeable aluminum batteries (RABs) have evolved as one of the most promising energy storage system (ESS) owing to their high theoretical capacity (8046 mAh g), low cost and safe nature of aluminum. However, the biggest bottleneck to the RABs is the unavailability of the high capacity and sustainable electrode materials. Previously, the titanium oxide (TiO2) and carbon nanotubes (CNT) based nanocomposites and nanoparticles have bestowed great breakthroughs in the areas of environmental science and electrochemical ESS. Hence, an economical and aqueous electrolyte based RAB is presented here with a nanocomposite TiO2/CNT anode material. The as-synthesized nanocomposite anode material is characte- Brunauer-Emmett-Teller (BET), microscopy (FESEM) and energy- -dispersive X-ray spectroscopy (EDS). When tested as anode materials for RABs it demonstrated a superior electrochemical performance to the most of the previously reported anode materials for RABs. As witnessed a high discharge capacity of 225.5 mAh g at 0.15 C and an excellent rate performance with a discharge capacity of 135 mAh g at an extremely high C rate of 6 of a high capacity anode material that can play a vital role in the development of a low cost, safe and high capacity ESS.
