A Direct Approach to Zn²⁺ Pre-Intercalated V₂O₅ Cathodes with Superior Electrochemical Performance for Aqueous Zinc-Ion Batteries

We report a simple and direct hydrothermal route to synthesize Zn²⁺-intercalated V₂O₅·nH₂O using a zinc metal strip as the Zn²⁺ source—a strategy not previously applied to vanadium oxides. This direct...