Rationally-designed configuration of directly-coated Ni3S2/Ni electrode by RGO providing superior sodium storage

A RGO/Ni3S2/Ni nanostructure as an anode electrode for SIBs was designed. This electrode exhibits high specific capacity (448.6 mAh g−1) and excellent cycling stability (capacity retention of 96.5% after 100 cycles). DFT calculations demonstrate the advantages of this configuration.257