Tin disulfide (SnS₂) is a promising anode material for sodium-ion batteries because of its high specific capacity. However, the low conductivity and large volume change during reaction with Na⁺ ions greatly limit its practical application. Herein, a multistep templating method has been exploited for the rational design and synthesis of SnS₂ nanosheets confined in carbon nanotubes (SnS₂@CNTs). To demonstrate the universality of this method, SnS₂ nanosheets confined in carbon nanoboxes (SnS₂@CNBs) and hollow carbon nanospheres (SnS₂@CNSs) have also been synthesized by simply changing the template in the reaction system. Due to their unique structural merits, the SnS₂@CNTs, SnS₂@CNBs, and SnS₂@CNSs show improved sodium storage performance in terms of high specific capacity, good cycling stability, and superior rate capability.

二硫化锡（SnS ₂）因其高比容量而成为钠离子电池的有希望的负极材料。但是，与Na ⁺离子反应过程中电导率低且体积变化大，极大地限制了其实际应用。在本文中，已经开发了一种多步骤模板方法用于合理设计和合成限制在碳纳米管（SnS ₂ @CNTs）中的SnS ₂纳米片。为了证明此方法的通用性，将SnS ₂纳米片限制在碳纳米盒（SnS ₂ @CNBs）和中空碳纳米球（SnS ₂也可以通过简单地改变反应系统中的模板来合成@CNSs。由于其独特的结构优点，SnS ₂ @ CNTs，SnS ₂ @CNBs和SnS ₂ @CNSs在高比容量，良好的循环稳定性和优异的倍率性能方面显示出改善的钠储存性能。