A 400 mAh/g aerogel-like V₂O₅ cathode for rechargeable lithium batteries

A highly amorphous V₂O₅ material composed of a highly interconnected, very thin solid phase has been prepared via a combined solgel and solvent exchange procedure. Electrochemical tests performed on composite cathodes based on the material demonstrated its very high lithium insertion capacity (up to 410 mAh/g or 2.9 Li⁺ per V₂O₅) with a capacity fading on intercalation-deintercalation cycles below 0.5% per cycle.