fig17
Figure 17. Functional separators beyond Na-S batteries. (A) Mechanism schematic diagram for Na-S battery, rate performance of Li-S battery and long-time cycling performance of Na-S battery of the CoFe@FeOx catalyst. (B) Schematic synthesis procedure illustration of the SnSe nanosheets, the UV-vis spectra comparison of the Li/Na/K polysulfide solutions with and without SnSe. This figure is quoted with permission from Chen et al.[143], and Li et al.[144], respectively.
