To deposit lithium metal, we performed linear sweep voltammetry experiments starting at 0 V vs. Li metal and at a constant sweep rate of 5 mV/s in the anodic direction. Lithium was observed to deposit at low-magnitude applied potentials of Vonset = -0.07 ± 0.12 V. The magnitude of the cell potential was increased until lithium-metal intrusions were observed to grow, which we define as failure. Once the experiment was completed, the microprobe was cleaned of residual lithium metal by mechanically brushing the probe onto a rubber O-ring, which was part of the sample-transfer system. For especially difficult-to-remove lithium metal, the Ga FIB was used to assist in cleaning the probe or cutting it to remove the lithium. The electrochemical experiment was then repeated for various conditions discussed below. The Ga FIB was also used to cut the probe to the desired shape for high-force contact experiments.