for each MoS2 sample are presented in Fig. . MoS2 Comm (Fig. ) exhibits a plateau at ca. 1.1 V vs. Li/Li + during first cycle associated with the irreversible phase transition from semiconductive 2H phase to metallic 1T phase, resulting in an initial Coulombic efficiency (ICE) of 76 %, well aligned to the literature values . It is a consequence of the sulfur plane gliding upon intercalation of lithium ions which turns the molybdenum atom into the octahedral coordination environment . In the consecutive few cycles, completion of the irreversible phase transition can still be observed, before a stable (de)lithiation profile with the main redox plateau in the potential region around 1.7 -1.9 V vs. Li/Li + is observed, presenting a reversible anodic/delithiation capacity of 152 mAh g -1 , close to the theoretical capacity. Comparable behavior can be also observed when tested by cyclic voltammetry (Fig. ), which shows high cathodic current peak corresponding to phase transition in the first cycle and consequent de/intercalation behavior in the consecutive cycles.