High capacity/reversible Fe/Sn alloys for Na-storage anodes enabled by thermal reaction and then anchoring on exfoliated graphite

The synthesis processes of Sn-based alloys have emerged as high-capacity, low-working voltage anodes for sodium-ion batteries (SIBs), rate cycling performance of FSS-3 and FSS-3/G-15%, the comparison of FSS-3/G-15% with recently reported transition metal-containing alloy anodes.