The single layer 2H-TMDs are usually denoted as 1H phase. Although the stable phase of TMDs has interesting physicochemical properties, their usage in LIBs was impeded due to the low electronic conductivity. Besides, some of these 2D materials are reported to be bind with Liions weakly. Hence it is essential to address these drawbacks to employ them for LIB applications. Recent theoretical and experimental studies show that designing hybrid van der Waals (vdW) heterostructures using TMDs with graphene is an effective way of improving their electrochemical properties. For instance, the heterostructure of MoS 2 with graphene offers a descent electrochemical performance than its components. Hitherto, compared to MoS 2 , the studies on WS 2 based heterostructures are still in the infancy stage. Besides that, the low cost, less toxicity and high abundance of WS 2 make it as good choice material among the 2Dchalcogenides as alternative material for replacing MoS 2 . Thus, inspired from the recent developments on MoS 2 based vdW heterostructure for multifarious applications, in this work we have investigated vertically stacked WS 2/ graphene heterostructure as an anode LIB using first principles based DFT calculations. Our results show that WS 2 /graphene heterostructure is stable and possesses better Li-adsorption energy. The charge transfer from Li to WS 2 /graphene heterostructure further improves the metallic character of the heterostructure. The Li-diffusion barrier and OCV of this heterostructure is found to be suitable for the anode of LIBs and better than many of the established anode materials. We believe that the present study will invoke battery researchers to realize similar electrode materials shortly.