Solid-state-stabilization of molecular vanadium oxides for reversible electrochemical charge storage

Abstract

Molecular vanadium oxides are promising active materials for cathodes in lithium and post-lithium batteries due to their high redox activity, low molecular weight and facile tuneability. However, a major challenge for this application is the transformation of the molecular clusters into solid-state oxides under typical electrode fabrication conditions. Here, we report a molecular crystal engineering approach for the stabilization of molecular vanadium oxides in the crystal lattice, enabling initial studies on reversible electron storage in a lithium ion battery test cell.