fig3

Figure 3. Electrochemical properties of FeNiS₂ QDs@SPAN cathode. (A) rate performance of both FeNiS₂ QDs@SPAN and SPAN cathodes; (B) charge/discharge profiles of the FeNiS₂ QDs@SPAN cathode across various current rates from 0.5 C to 5 C; (C) Galvanostatic charge-discharge profiles for both FeNiS₂ QDs@SPAN and SPAN cathodes at 1 C; (D) Cycling stability performance of both the FeNiS₂ QDs@SPAN and SPAN at 5 C; (E) Cyclic performance of the FeNiS₂ QDs@SPAN and SPAN cathode at 1 C. QDs: Quantum dots; SPAN: sulfurized polyacrylonitrile.