Although tin sulfide is a promising anode material for lithium‐ and sodium‐ion batteries due to the layered structure and high theoretical capacity, the large volume expansion and poor kinetics have seriously hindered further development and application. In this work, hollow spheres consisting of in situ generated SnS nanosheets (SnS@C HSs) conformally coated with S‐doped carbon are fabricated using polystyrene spheres as the self‐sacrifice template and carbon source. The SnS@C HSs with a large SnS interlayer distance, S‐doped carbon matrix, and hollow structure not only relieve the pressure caused by volume expansion during cycling, but also promote fast transfer of lithium/sodium ions leading to a high pseudocapacitance. The SnS@C HSs have excellent electrochemical properties in both LIBs and SIBs such as high capacity, high rate, and outstanding cycling stability. The use of a self‐sacrifice template is demonstrated to be a convenient and efficient strategy to design and prepare carbon‐coated metal hollow spheres for efficient energy storage and conversion.

中文翻译：

---

含S掺杂碳的SnS纳米片组成的空心球，用于高级锂/钠离子电池阳极

尽管硫化锡由于其分层的结构和较高的理论容量而成为锂和钠离子电池的有希望的负极材料，但其大体积膨胀和不良的动力学性能严重阻碍了其进一步的开发和应用。在这项工作中，使用聚苯乙烯球作为自我牺牲模板和碳源，制作了由原位生成的SnS纳米片（SnS @ C HSs）保形地涂覆有S掺杂碳的空心球。具有较大SnS层间距离，S掺杂碳基质和中空结构的SnS @ C HSs不仅可以缓解循环过程中由于体积膨胀而引起的压力，而且还可以促进锂/钠离子的快速转移，从而获得较高的假电容。SnS @ C HS在LIB和SIB中均具有出色的电化学性能，例如高容量，高倍率，以及出色的循环稳定性。事实证明，使用自我牺牲模板是设计和准备碳涂层金属空心球以进行有效的能量存储和转换的便捷有效的策略。