SnSe₂ nanosheet is a common anode for lithium-ion batteries (LIBs), but its severe agglomeration hinders its practical application. Herein, a three-dimensional (3D) SnSe₂ nanoflower (F-SnSe₂) composed of non-stacking vertical upward hexagonal nanosheets was prepared through a colloidal method as an anode material for LIBs. Benefiting from the advantages of fast reaction-diffusion kinetics and buffering unavoidable volume variation during cycling, the F-SnSe₂ electrode displays remarkable specific capacity of 795 mAh g⁻¹ after 100 cycles at 100 mA g⁻¹ and superior rate performance (282 mAh g⁻¹ at 2,000 mA g⁻¹). This work provides an effective way to get non-stacking nanosheets in energy storage field.

SnSe ₂纳米片是锂离子电池（LIB）的常见负极，但其严重的团聚阻碍了其实际应用。本文通过胶体法制备了由非堆叠垂直向上六角形纳米片组成的三维（3D）SnSe ₂纳米花（F-SnSe ₂ ）作为锂离子电池负极材料。受益于快速反应扩散动力学和缓冲循环过程中不可避免的体积变化的优点，F-SnSe ₂电极在 100 mA g ⁻¹下循环 100 次后表现出 795 mAh g ⁻¹的显着比容量和优异的倍率性能（282 mAh g ^-1 (2,000 mA g ^-1 )。该工作为储能领域非堆积纳米片的制备提供了一种有效途径。