Figure 5: Generalization to other transition metal disulphides.

(a,b) SEM images of (a) Li₂S@ZrS₂ and (b) Li₂S@VS₂ structures. Scale bars, 5 μm. (c,d) Ab initio simulations showing the most stable binding configuration of Li₂S with a single layer of (c) ZrS₂ and (d) VS₂ with calculated binding energies of 2.70 and 2.94 eV, respectively. (e) Specific capacity of Li₂S@ZrS₂ and Li₂S@VS₂ cathodes cycled at 0.2 C (1 C=${\text{1,166mAg}}^{{\text{-1}}_{{\text{Li}}_{\text{2}}\text{S}}}$). (f) Areal capacity of Li₂S@ZrS₂ and Li₂S@VS₂ cathodes with high mass loading cycled from 0.1 to 0.6 mA cm⁻².