A flower‐like vanadium sulfide/reduced graphene oxide (VS₄/rGO) composite was prepared by a typical hydrothermal method and it was investigated as cathode for aluminum‐ion batteries with non‐inflammable and non‐explosive ionic‐liquid electrolytes. The charge/discharge performance measurements were performed in a voltage range of 0.1–2.0 V versus Al/AlCl₄⁻, which gave an initial charge/discharge specific capacity af approximately 491.57 and 406.94 mA h g⁻¹, respectively, at a current density of 100 mA g⁻¹. Additionally, in the cycling performance, the discharge capacity was observed to remain over 80, 70, and 60 mA h g⁻¹ at current densities of 100, 200, and 300 mA g⁻¹ after 100 cycles, respectively. The result of a coulombic efficiency over 90 % after 100 cycles and high retained capacity indicate that the composite is a favorable cathode material for new rechargeable aluminum‐ion batteries.

中文翻译：

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花状硫化钒/氧化石墨烯复合材料：铝离子电池的储能材料

用典型的水热法制备了花状的硫化钒/氧化石墨烯（VS ₄ / rGO）复合材料，并将其作为具有不可燃和非爆炸性离子液体电解质的铝离子电池的阴极进行了研究。的充电/放电性能的测量是0.1-2.0 V与铝/氯化铝的电压范围内进行₄ ^- ，这给了初始充电/放电比容量AF约491.57和406.94毫安ħ克^-1分别，在电流密度100 mA g ^-1。另外，在循环性能中，在电流密度分别为100、200和300 mA g ^-1时，观察到放电容量保持在80、70和60 mA h g ^-1以上。分别经过100个周期后。100次循环后库仑效率超过90％且保持容量高的结果表明，该复合材料是新型可再充电铝离子电池的理想正极材料。