Herein, we demonstrate that carbon can be used as a gas diffusion electrode for lithium mediated ammonia synthesis as a result of lithium plating occurring once the carbon is saturated with intercalated lithium. We employed a commercial carbon gas diffusion layer (Freudenberg H15) as the cathode in a flow cell and assessed the performance across a range of current densities (-6 mA cm -2 geo to -60 mA cm -2 geo) and ethanol concentrations (0.25 vol. % to 1.0 vol. %).