Recent advances in the use of organic-inorganic hybrid perovskites have been investigated in a variety of applications, such as solar cells, photodetector, light emitting devices (LEDs), and lasers because of their outstanding semiconductor properties. Furthermore, the perovskite structure has the ability to host extrinsic elements, making it a promising candidate for battery field. Previous studies have shown that organic-inorganic hybrid perovskites can be a suitable anode material for both lithium- and sodium-ion batteries. However, the multivalent rechargeable batteries with perovskite material have not yet been realized. Herein, we studied the electrochemical performance of three-dimensional (3D) CH_3NH_3PbI_3 and quasi-two dimensional (C_4H_9NH_3)_2(CH_3NH_3)_3Pb_4I_(13) thin films as electrode materials for rechargeable Al-ion batteries. In this work, these electrodes were successfully synthesis on carbon cloth through a feasible solution process. The (C_4H_9NH_3)_2(CH_3NH_3)_3Pb_4I_(13) electrode yield a specific capacity of 210 mAh g~(-1) at the current density of 50mA g~(-1). It still delivered 81 mAh g~(-1) after 250 cycles at the current density of 200mA g~(-1) with a retention of as high as 95%, indicating a long cycling stability. Compared with the CH_3NH_3Pbl_3, the (C_4H_9NH_3)_2(CH_3NH_3)_3Pb_4I_(13) presented higher initial capacities, better reversibility, and more excellent high-rate capabilities, all demonstrating the vitally prominent role of isobutyl amine (C_4H_9NH_3). which can be attributed to the unique hydrogen-bonding interaction of isobutyl amine could effectively hinder the shuttle effect of polyiodide. We anticipate that these results open a new direction for the use of organic-inorganic hybrid perovskites for new secondary aluminum ion batteries.
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