“…In addition, Sb electrodes undergo a large volume expansion (134%) during lithiation, resulting in severe mechanical issues such as pulverization, loss of contact, and delamination. − To overcome these issues, the most common approach is to introduce carbon-based − or other inactive matrixes, such as Ni, − Cu, and Co, to buffer the large volume expansion. A carbon matrix is effective in suppressing material cracking and improving electrical conductivity, but the mass production of nanocarbon materials is rather difficult. − Incorporation of inactive matrixes into Sb reduces the relative amount of volume expansion but at the same time decreases its specific capacity to less than 300 mAh g –1 , which is even lower than that of commercial graphite. The use of active matrixes such as Sn, Bi, In, Ag, and Mg was also reported previously. ,− Although specific capacity is increased with the introduction of Sn, the cycle performance of the Sn–Sb electrodes was still poor because of phase segregation of Sn and Sb and a gradual thickening of the solid electrolyte interphase layer. , Sb–Bi alloys showed improved stability during cycling, but due to the large weight of Bi, the capacity was only around 300 mAh g –1 .…”