The global research efforts for identification of electrode materials for high energy and high power density rechargeable aqueous/non-aqueous aluminum-ion batteries have gained unprecedented momentum in contemporary times. Herein, we exclusively report the Al³⁺ ion electrochemistry of Bi₂O₃ in aqueous electrolyte for the first time. While investigating the electrochemical performance of Bi₂O₃, we demonstrate a unique method to simultaneously enhance the storage capacity and long-term stability of Bi₂O₃ as an electrode material for rechargeable aqueous aluminum-ion battery. It is found that a binder free integrated electrode of Bi₂O₃ on an exfoliated graphite current collector is better suited for improved electrochemical activity. When assembled with an Al metal anode, the integrated Bi₂O₃ electrode delivers a stable specific capacity of 103 mAhg⁻¹ at a current rate of 1.5 Ag⁻¹ over several charge/discharge cycles.

用于鉴定高能量和高功率密度可充电水/非水铝离子电池用电极材料的全球研究工作在当代取得了空前的势头。在此，我们首次专门报道了Bi ₂ O ₃在水性电解质中的Al ³⁺离子电化学。在研究Bi ₂ O ₃的电化学性能时，我们展示了一种独特的方法，可同时提高Bi ₂ O ₃作为可充电铝离子水电池电极材料的存储容量和长期稳定性。发现Bi ₂ O的无粘结剂集成电极剥落的石墨集电器上的图₃更适合于改善电化学活性。当与Al金属阳极组装在一起时，集成的Bi ₂ O ₃电极在多个充电/放电循环中以1.5 Ag ^{- 1}的电流速率可提供103 mAhg ^{- 1}的稳定比容量。