Rational design of a Fe1−xS/FeS2 homologous heterostructure with exceptional high-rate performance for advanced sodium-ion battery anodes

This is a dataset about rational design of a Fe1−xS/FeS2 homologous heterostructure with exceptional high-rate performance for advanced sodium-ion battery anodes.The Fe1−xS/FeS2 proposed in this work can improve the electron/Na+ transport rate and mitigate the volume expansion in the electrochemical process. This work provides new insights into designing and preparing transition metal sulfides with heterostructures for sustainable SIBs.This dataset comprises several sections: BET, CV, DFT, GITT, SEM, TEM, XPS, XRD, Electrochemical Properties, Full cell, Nyquist plots, and preparation process.