fig5

Figure 5. (A) CV curves; (B) Log(i) versus log(v) fitting plot; (C) Capacitive contribution of PPy-NaVO at different scan rates; (D) GITT charge-discharge comparison curves; (E) Comparison of Zn²⁺ diffusion coefficients; (F) Ragone plot of NaVO and PPy-NaVO. CV: Cyclic voltammetry; GITT: galvanostatic intermittent titration technique; PPy-NaVO: polypyrrole-pillared Na₂V₆O₁₆.