SnS emerges as a promising anode candidate for high-energy–density lithium/sodium-ion batteries, attributed to its substantial theoretical capacity of 1022 mAh/g. However, its practical application faces challenges stemming from intrinsic low conductivity and substantial volume variation during lithium/sodium intercalation and deintercalation processes. To address these limitations, we present a cost-effective hydrothermal synthesis combined with an in-situ carbothermal reduction approach for fabricating a nanoflower-like porous carbon-wrapped SnS (SnS/C NFs) anode. The porous carbon shell mitigates the volume expansion of SnS and enhances electronic/ionic conductivity, owing to the porous structure and formation of C-S-C bonds. The SnS/C NFs anode delivered excellent rate performance and long-term cycling stability with high specific capacity both in LIBs (1120 mAh/g after 1000 cycles at 1 A/g) and SIBs (399.3 mAh/g after 500 cycles at 1 A/g). This work provides a safe and low-cost approach for next-generation advanced LIBs and SIBs anodes.

中文翻译：

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通过可持续木质素的低温原位碳热还原赋予 SnS/C 纳米结构，用于稳定的锂和钠离子存储


SnS 因其 1022 mAh/g 的理论容量而成为高能量密度锂/钠离子电池的有前途的阳极候选者。然而，其实际应用面临着固有的低电导率和锂/钠嵌入和脱嵌过程中巨大的体积变化带来的挑战。为了解决这些限制，我们提出了一种经济高效的水热合成方法，结合原位碳热还原方法，用于制造纳米花状多孔碳包裹的 SnS (SnS/C NFs) 阳极。由于多孔结构和 CSC 键的形成，多孔碳壳减轻了 SnS 的体积膨胀并增强了电子/离子电导率。 SnS/C NFs负极在LIB（1 A/g下1000次循环后为1120 mAh/g）和SIB（1 A/g下500次循环后为399.3 mAh/g）中均具有出色的倍率性能和长期循环稳定性以及高比容量/克）。这项工作为下一代先进的 LIB 和 SIB 阳极提供了一种安全且低成本的方法。