fig15

Figure 15. Bifunctional separator with TMBs interlayers for Na-S batteries. (A) TEM image of MXene@C nanosheets, voltage profile of Na-Cu cell and CV curves of the Na-Na symmetric cells with MXene@C separator. (B) Orbital projected density of states analyses for A-FeSnO_x and cycling performance of Na-S cells with different separators at 0.5C. This figure is quoted with permission from Wang et al.^[136], and Sun et al.^[137], respectively.