Figure 5.
(A) Schematic illustration of the layer-by-layer formation mechanism of β-Ni(OH)2/graphene nanohybrids. (B) Schematic illustration of the flexible all-solid-state thin-film supercapacitor with pseudocapacitive β-Ni(OH)2/graphene nanohybrids as active materials. (C) TEM image of the as-prepared nanohybrids, confirming the nanosheet morphology. (D) Cross-sectional HR-TEM images and (E) enlarged view of the HR-TEM image of the curled fringe of the nanohybrid sheet. (F) Long-term cycling stability of the flexible ASSTFS based on the nanohybrids (98.2% for the 2,000th cycle). (G) Cycling stability of the flexible ASSTFS measured after repeated bending/extension deformation (Xie et al., 2013).