“…A large variety of compounds, such as transition metal oxides,6, 7, 8, 9 phosphates,10, 11, 12 ferrocyanide,13, 14, 15 hard carbon,16, 17, 18, 19 metal alloys,20, 21, 22 and organic materials,23, 24, 25 have demonstrated considerable Na‐storage capacities for SIBs. However, most of them suffer from structural instability during Na‐insertion/extraction reactions.…”