Sodium‐ion batteries are regarded as a promising alternative to lithium ion batteries. However, their application is restricted by the low capacity and poor rate performance of existing anodes. Here, a stibnite/reduced graphene oxide nanocomposite is reported, fabricated by an ionic liquid‐assisted hydrothermal method, for sodium‐ion batteries. The obtained nanocomposite gives a high capacity of 687.7 mA h g⁻¹ at 50 mA g⁻¹ and an impressive rate performance. The promising electrochemical properties can be attributed to the uniformly distribution of Sb₂S₃ on reduced graphene oxide layers and the close contact between the two composites, which can be ensured by the addition of ionic liquid during the synthesizing process. This facile method shall pave the way for the production of other graphene‐based nanocomposite for sodium ion batteries and other energy storage systems.

中文翻译：

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离子液体辅助制备Sb2S3 /还原的氧化石墨烯纳米复合材料用于钠离子电池

钠离子电池被认为是锂离子电池的有前途的替代品。然而，它们的应用受到现有阳极的低容量和不良速率性能的限制。此处报道了一种钠离子电池用离子液体辅助水热法制备的辉锑矿/还原氧化石墨烯纳米复合材料。所获得的纳米复合材料在50 mA g ^-1时具有687.7 mA hg ^-1的高容量，并具有令人印象深刻的速率性能。Sb ₂ S ₃的均匀分布可归因于有前途的电化学性能在还原的氧化石墨烯层上和两种复合材料之间的紧密接触可以通过在合成过程中添加离子液体来确保。这种简便的方法将为生产其他用于钠离子电池和其他储能系统的石墨烯基纳米复合材料铺平道路。