Enhanced Electrochemical Performance of Aprotic Li-CO Batteries with a Ruthenium-Complex-Based Mobile Catalyst.

Li-CO batteries are regarded as next-generation high-energy-density electrochemical devices. However, the greatest challenge arises from the formation of the discharge product, Li CO , which would accumulate and deactivate heterogenous catalysts to cause huge polarization. Herein, Ru(bpy) Cl was employed as a solution-phase catalyst for Li-CO batteries and proved to be the most effective one screened so far.