fig7
Figure 7. (A) Schematic of the one-step synthesis process for the binder-free VOHAs cathode; and (B and C) the corresponding SEM images; (D) The relationship between the capacity and mass loading of cathode materials[97]. Copyright 2021 Elsevier Ltd. SEM: Scanning electron microscopy; VOHAs: V3O7·H2O nanoarrays.
