fig2
From: MOF and related composites as selective functional separators and interlayers for Li-S batteries

Figure 2. Schematic diagram of the difference between the configuration of (A) functional interlayers and (B) functional separators for Li-S batteries. (C) New classification in terms of the functions in the form of the interlayer/separator for Li-S batteries. Reproduced with permission[20]. © 2018 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.