“…As demonstrated, a porous structure with pore diameters larger than 2 nm plays a decisive role in the capacity of discharge. More importantly, the incorporation of nanocatalysts, such as metals, metal oxides, and carbides with high CO 2 reduction/evolution reaction (CO 2 -RR/CO 2 -ER) activities is particularly efficient in promoting the performance of the cathode catalysts of Li–CO 2 batteries. , For example, molybdenum carbide was reported to be an efficient cathode catalyst for Li–CO 2 batteries. ,, It was demonstrated by first principles calculations that the final discharge product could be stabilized Li 2 C 2 O 4 , which can prevent further formation of Li 2 CO 3 and reduce the overpotential of the battery . Therefore, to design the high-performance cathode catalysts, the issues including good electronic conductivity, decent CO 2 adsorption capability, and high CO 2 -RR and CO 2 -ER activities should be fully taken into consideration.…”