“…[7] At present, many methods have been proposed to improve the cycling stability of Sb through the design of favorable nanoarchitectures and alloying. In general, various nanostructures of Sb (Sb/C nanofibers, [8] Sb nanotubes, [9] Sb nanorod array, [10] hollow Sb, [11] porous Sb, [12] and few-layered Sb [13] ) can relieve the stress by providing expansion space within the nanostructure, while Sb-based alloys (CoSb, [14] NiSb, [15] SnSb, [16] Cu 2 Sb, [17] FeSb 2 , [18] AlSb, [19] Mo 3 Sb 7 , [20] Zn 4 Sb 3 , [21] BiSb, [22] and Sb 2 Se 3 [23] ) can reduce the volume expansion by decreasing the reversible capacity through the addition of inert components in Sb. [24] For example, Sb hollow microspheres exhibited a capacity retention of 97.2 % after 100 cycles due to the buffering effect of the hollow structure, [25] which could accommodate the volume change during the sodiation and desodiation process.…”