Freudenberg H15 will herein be referred to as the carbon cathode, which exhibited notable differences in the electrochemical responses compared to the state-of-the-art stainless steel mesh (Figure ). During the linear sweep voltammetry, the current increases at a more positive potential than that of lithium plating (Figure ), which we attribute to lithium intercalation into the graphitic domains of the carbon. The potential response of the carbon cathode (Figure ) during current pulsing differs from the response of the stainless steel mesh cathode (Figure ) due to lithium intercalation. Whilst the potential of the stainless steel cathode remains constant around -3 V vs. Pt wire, the carbon cathode potential begins higher and then decreases as more charge is passed which correlates to more lithium intercalating. As intercalation proceeds, the lithium content in the carbon increases-resulting in a material more closely resembling lithium metal-thus shifting the potential towards that of lithium metal/plating. The potential of the carbon cathode then plateaus after about 60 minutes, suggesting full saturation of the carbon electrode with lithium. Subsequently, lithium is most likely plated onto the surface of the electrode, as the recorded potential suggests.