A Long-Life Li-CO2 Battery Employing a Cathode Catalyst of Cobalt-Embedded Nitrogen-Doped Carbon Nanotubes Derived from a Prussian Blue Analogue

A non-precious metal catalyst cobalt-embedded nitrogen-doped carbon nanotubes (Co-N-CNTs) was synthesized by annealing decomposition of a Prussian blue analogue. Employed as the cathode catalyst of a Li-CO2 battery, Co-N-CNTs facilitates this battery to deliver a high capacity and outstanding cyclibility. Furthermore, we verified the reversibility of this Li-CO2 battery.