 They used a nanostructured vanadium oxide, which is able to load two to three times more lithium ions onto the cathode than the layered lithium cobalt oxide.In 2013 researchers announced a synthesis of hierarchical vanadium oxide nanoflowers (V10O24·"n"H2O) synthesized by an oxidation reaction of vanadium foil in a NaCl aqueous solution.Electrochemical tests demonstrate deliver high reversible specific capacities with 100% coulombic efficiency, especially at high C rates ("e.g.