Figure 2 | Scientific Reports

Figure 2

From: Graphene Oxide Induced Surface Modification for Functional Separators in Lithium Secondary Batteries

Figure 2

(a) Photographs of graphene oxide (GO) dip-coating depending on the polarity of GO solution. (b) Schematic illustration of wettability of the solvent with low surface energy on the conventional hydrophobic separator. (c) SEM image of the GO dip-coated separator. (d) Water contact angle measurement and (e) photograph of large-area wetting feature on the GO dip-coated separator. For visualization, Co(NO3)2·6H2O dissolved water was used.

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