Swagelok-type 3-electrode cells ("T-cells") were assembled using TiS2-based electrodes as working electrode and metallic lithium discs (Honjo, 12 mm diameter) as counter and reference electrodes. A glass microfiber filter (Whatman grade GF/D) was used as separator and 120 µL of LP30 (1 M LiPF6 in ethylene carbonate and dimethyl carbonate (EC/DMC) with 1:1 volumetric ratio) or 1 M LiTFSI in 2G were used as electrolyte. Swagelok-type 3-electrode cells ("T-cells") were also used for impedance measurements, utilizing an additional piece of lithium metal as reference electrode.