A promising anode material composed of SnS₂@CoS₂ flower-like spheres assembled from SnS₂ nanosheets and CoS₂ nanoparticles accompanied by reduced graphene oxide (rGO) was fabricated by a facile hydrothermal pathway. The presence of rGO and the combined merits of SnS₂ and CoS₂ endow the SnS₂@CoS₂–rGO composite with high conductivity pathways and channels for electrons and with excellent properties as an anode material for sodium-ion batteries (SIBs). A high capacity of 514.0 mAh g⁻¹ at a current density of 200 mA g⁻¹ after 100 cycles and a good rate capability can be delivered. The defined structure and good sodium-storage performance of the SnS₂@CoS₂–rGO composite demonstrate its promising application in high-performance SIBs.

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中文翻译：

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基于纳米结构的SnS改善电化学性能2个@CoS2个–rGO钠离子电池复合阳极

通过一种简便的水热路径，制备了一种有前途的阳极材料，该材料由由SnS ₂纳米片和CoS ₂纳米粒子组装而成的SnS ₂ @CoS ₂花状球和还原的氧化石墨烯（rGO）组成。rGO的存在以及SnS ₂和CoS ₂的综合优点使SnS ₂ @CoS ₂ -rGO复合材料具有高的电子传导路径和通道，并具有出色的钠离子电池负极材料性能。在200 mA g ^-1的电流密度下具有514.0 mAh g ^-1的高容量100次循环后，可以提供良好的速率能力。SnS ₂ @CoS ₂ -rGO复合材料的确定的结构和良好的钠存储性能证明了其在高性能SIB中的应用前景。

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