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      https://www.ias.ac.in/article/fulltext/boms/043/0026

    • Keywords

       

      Energy storage; aluminium-ion battery; aqueous electrolyte; graphite; titanium dioxide.

    • Abstract

       

      In an effort to develop Al$^{3+}$ ion-based rechargeable electrochemical cells, there is massive exploration of appropriate electrode materials in contemporary times. Aluminium is a natural choice due to its high abundance, low cost and easy processing. Herein, the working of rechargeable aqueous aluminium-ion batteries which comprise graphite from pencil sketch as the cathode, TiO$_2$ as the anode and an Al$^{3+}$ ion conducting aqueous electrolyte is demonstrated for the first time. The aluminium-ion cell delivers a discharge voltage of 1.5 V and stable specific capacities of 25 mAh g$^1{−1}$ over 1000 cycles. This proof of concept emphasizes on the possibility of achieving sustainable, easy to assemble and low-cost rechargeable batteries.

    • Author Affiliations

       

      SUNNY NANDI1 HOMEN LAHAN SHYAMAL K DAS

      1. Department of Physics, Tezpur University, Tezpur 784028, India
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