“…[5][6][7][8] However, the large radius of Na + ($0.106 nm) endows anode materials with sluggish ionic-transport kinetics, thus resulting in poor fast-charging capability. 9,10 To solve this tricky problem, a multitude of anode materials with well-designed structures, such as metals, 11,12 metal suldes, 13 metal oxides, 14 hard carbon, 15,16 and graphene, 17 have been demonstrated with good rate performances. However, the anode materials possessing ultrafast Na + -storage capability, together with ultrahigh capacity and an ultralong working lifetime, are highly required for fastcharging SIBs, which still is a huge challenge up to now.…”