In MoS2 TU (Fig. ), the initial interlayer distance is 0.65 nm and only expands slightly to 0.67 nm upon lithiation. At the end of the first delithiation, the d-spacing remains at roughly 0.67 nm. The XRD signature is characterized by a minimal, but continuous shifts of the (001) set of planes of 1T-MoS2, rather than the emergence of new diffraction signals, demonstrating solid-solution lithium (de)intercalation. While Raman results suggest that MoS2 TU consists of a mixture of 1T-MoS2 and 2H-MoS2, a phase transformation is not observed via operando XRD. This is likely due to the nanosizing effect of MoS2 crystallites suppressing the transformation . Overall, crystallographic changes in MoS2 TU are minimal during (de)lithiation, providing an explanation for the superior kinetics of the material compared to MoS2 Comm, despite its small SSA.